rv = -ENOMEM;
goto out;
}
-
- example_dir->owner = THIS_MODULE;
-
/* create jiffies using convenience function */
jiffies_file = create_proc_read_entry("jiffies",
0444, example_dir,
goto no_jiffies;
}
- jiffies_file->owner = THIS_MODULE;
-
/* create foo and bar files using same callback
* functions
*/
foo_file->data = &foo_data;
foo_file->read_proc = proc_read_foobar;
foo_file->write_proc = proc_write_foobar;
- foo_file->owner = THIS_MODULE;
bar_file = create_proc_entry("bar", 0644, example_dir);
if(bar_file == NULL) {
bar_file->data = &bar_data;
bar_file->read_proc = proc_read_foobar;
bar_file->write_proc = proc_write_foobar;
- bar_file->owner = THIS_MODULE;
/* create symlink */
symlink = proc_symlink("jiffies_too", example_dir,
goto no_symlink;
}
- symlink->owner = THIS_MODULE;
-
/* everything OK */
printk(KERN_INFO "%s %s initialised\n",
MODULE_NAME, MODULE_VERS);
readings. Be sure to have a high vs. low temperature limit gap of al least
1.0 degree Celsius to avoid Tout "bouncing", though!
-As for alarms, you can read the alarm status of the DS1621 via the 'alarms'
-/sys file interface. The result consists mainly of bit 6 and 5 of the
-configuration register of the chip; bit 6 (0x40 or 64) is the high alarm
-bit and bit 5 (0x20 or 32) the low one. These bits are set when the high or
-low limits are met or exceeded and are reset by the module as soon as the
-respective temperature ranges are left.
+The alarm bits are set when the high or low limits are met or exceeded and
+are reset by the module as soon as the respective temperature ranges are
+left.
The alarm registers are in no way suitable to find out about the actual
status of Tout. They will only tell you about its history, whether or not
Temperature conversion of the DS1621 takes up to 1000ms; internal access to
non-volatile registers may last for 10ms or below.
-
-High Accuracy Temperature Reading
----------------------------------
-
-As said before, the temperature issued via the 9-bit i2c-bus data is
-somewhat arbitrary. Internally, the temperature conversion is of a
-different kind that is explained (not so...) well in the DS1621 data sheet.
-To cut the long story short: Inside the DS1621 there are two oscillators,
-both of them biassed by a temperature coefficient.
-
-Higher resolution of the temperature reading can be achieved using the
-internal projection, which means taking account of REG_COUNT and REG_SLOPE
-(the driver manages them):
-
-Taken from Dallas Semiconductors App Note 068: 'Increasing Temperature
-Resolution on the DS1620' and App Note 105: 'High Resolution Temperature
-Measurement with Dallas Direct-to-Digital Temperature Sensors'
-
-- Read the 9-bit temperature and strip the LSB (Truncate the .5 degs)
-- The resulting value is TEMP_READ.
-- Then, read REG_COUNT.
-- And then, REG_SLOPE.
-
- TEMP = TEMP_READ - 0.25 + ((REG_SLOPE - REG_COUNT) / REG_SLOPE)
-
-Note that this is what the DONE bit in the DS1621 configuration register is
-good for: Internally, one temperature conversion takes up to 1000ms. Before
-that conversion is complete you will not be able to read valid things out
-of REG_COUNT and REG_SLOPE. The DONE bit, as you may have guessed by now,
-tells you whether the conversion is complete ("done", in plain English) and
-thus, whether the values you read are good or not.
-
-The DS1621 has two modes of operation: "Continuous" conversion, which can
-be understood as the default stand-alone mode where the chip gets the
-temperature and controls external devices via its Tout pin or tells other
-i2c's about it if they care. The other mode is called "1SHOT", that means
-that it only figures out about the temperature when it is explicitly told
-to do so; this can be seen as power saving mode.
-
-Now if you want to read REG_COUNT and REG_SLOPE, you have to either stop
-the continuous conversions until the contents of these registers are valid,
-or, in 1SHOT mode, you have to have one conversion made.
Unit: microJoule
RO
+
**********
* Alarms *
**********
RW
+***********************
+* Intrusion detection *
+***********************
+
+intrusion[0-*]_alarm
+ Chassis intrusion detection
+ 0: OK
+ 1: intrusion detected
+ RW
+ Contrary to regular alarm flags which clear themselves
+ automatically when read, this one sticks until cleared by
+ the user. This is done by writing 0 to the file. Writing
+ other values is unsupported.
+
+intrusion[0-*]_beep
+ Chassis intrusion beep
+ 0: disable
+ 1: enable
+ RW
+
+
sysfs attribute writes interpretation
-------------------------------------
=======================
Supported chips:
- * Winbond W83627EHF/EHG/DHG (ISA access ONLY)
+ * Winbond W83627EHF/EHG (ISA access ONLY)
Prefix: 'w83627ehf'
Addresses scanned: ISA address retrieved from Super I/O registers
Datasheet:
- http://www.winbond-usa.com/products/winbond_products/pdfs/PCIC/W83627EHF_%20W83627EHGb.pdf
- DHG datasheet confidential.
+ http://www.nuvoton.com.tw/NR/rdonlyres/A6A258F0-F0C9-4F97-81C0-C4D29E7E943E/0/W83627EHF.pdf
+ * Winbond W83627DHG
+ Prefix: 'w83627dhg'
+ Addresses scanned: ISA address retrieved from Super I/O registers
+ Datasheet:
+ http://www.nuvoton.com.tw/NR/rdonlyres/7885623D-A487-4CF9-A47F-30C5F73D6FE6/0/W83627DHG.pdf
+ * Winbond W83667HG
+ Prefix: 'w83667hg'
+ Addresses scanned: ISA address retrieved from Super I/O registers
+ Datasheet: not available
Authors:
Jean Delvare <khali@linux-fr.org>
Yuan Mu (Winbond)
Rudolf Marek <r.marek@assembler.cz>
David Hubbard <david.c.hubbard@gmail.com>
+ Gong Jun <JGong@nuvoton.com>
Description
-----------
-This driver implements support for the Winbond W83627EHF, W83627EHG, and
-W83627DHG super I/O chips. We will refer to them collectively as Winbond chips.
+This driver implements support for the Winbond W83627EHF, W83627EHG,
+W83627DHG and W83667HG super I/O chips. We will refer to them collectively
+as Winbond chips.
The chips implement three temperature sensors, five fan rotation
speed sensors, ten analog voltage sensors (only nine for the 627DHG), one
-VID (6 pins for the 627EHF/EHG, 8 pins for the 627DHG), alarms with beep
-warnings (control unimplemented), and some automatic fan regulation
-strategies (plus manual fan control mode).
+VID (6 pins for the 627EHF/EHG, 8 pins for the 627DHG and 667HG), alarms
+with beep warnings (control unimplemented), and some automatic fan
+regulation strategies (plus manual fan control mode).
Temperatures are measured in degrees Celsius and measurement resolution is 1
degC for temp1 and 0.5 degC for temp2 and temp3. An alarm is triggered when
temp1 -> pwm1
temp2 -> pwm2
temp3 -> pwm3
-prog -> pwm4 (the programmable setting is not supported by the driver)
+prog -> pwm4 (not on 667HG; the programmable setting is not supported by
+ the driver)
/sys files
----------
}
}
+ /* OK, so we noted that it was pretty poor to use an fdatasync as a
+ * barrier. But Christoph Hellwig points out that we need a sync
+ * *afterwards* as well: "Barriers specify no reordering to the front
+ * or the back." And Jens Axboe confirmed it, so here we are: */
+ if (out->type & VIRTIO_BLK_T_BARRIER)
+ fdatasync(vblk->fd);
+
/* We can't trigger an IRQ, because we're not the Launcher. It does
* that when we tell it we're done. */
add_used(dev->vq, head, wlen);
State
-----
-The validator tracks lock-class usage history into 5 separate state bits:
+The validator tracks lock-class usage history into 4n + 1 separate state bits:
-- 'ever held in hardirq context' [ == hardirq-safe ]
-- 'ever held in softirq context' [ == softirq-safe ]
-- 'ever held with hardirqs enabled' [ == hardirq-unsafe ]
-- 'ever held with softirqs and hardirqs enabled' [ == softirq-unsafe ]
+- 'ever held in STATE context'
+- 'ever head as readlock in STATE context'
+- 'ever head with STATE enabled'
+- 'ever head as readlock with STATE enabled'
+
+Where STATE can be either one of (kernel/lockdep_states.h)
+ - hardirq
+ - softirq
+ - reclaim_fs
- 'ever used' [ == !unused ]
-When locking rules are violated, these 4 state bits are presented in the
-locking error messages, inside curlies. A contrived example:
+When locking rules are violated, these state bits are presented in the
+locking error messages, inside curlies. A contrived example:
modprobe/2287 is trying to acquire lock:
- (&sio_locks[i].lock){--..}, at: [<c02867fd>] mutex_lock+0x21/0x24
+ (&sio_locks[i].lock){-.-...}, at: [<c02867fd>] mutex_lock+0x21/0x24
but task is already holding lock:
- (&sio_locks[i].lock){--..}, at: [<c02867fd>] mutex_lock+0x21/0x24
+ (&sio_locks[i].lock){-.-...}, at: [<c02867fd>] mutex_lock+0x21/0x24
-The bit position indicates hardirq, softirq, hardirq-read,
-softirq-read respectively, and the character displayed in each
-indicates:
+The bit position indicates STATE, STATE-read, for each of the states listed
+above, and the character displayed in each indicates:
'.' acquired while irqs disabled
'+' acquired in irq context
'-' acquired with irqs enabled
- '?' read acquired in irq context with irqs enabled.
+ '?' acquired in irq context with irqs enabled.
Unused mutexes cannot be part of the cause of an error.
BASE_DIR);
goto cleanup;
}
- base_dir->owner = THIS_MODULE;
/*
* Create per-name subdirectory
BASE_DIR, NAMED_DIR);
goto cleanup;
}
- named_dir->owner = THIS_MODULE;
/*
* Create per-number subdirectory
goto cleanup;
}
- numbered_dir->owner = THIS_MODULE;
/*
* Create all named nodes
goto cleanup;
entry->proc_entry->data = (void *) entry;
- entry->proc_entry->owner = THIS_MODULE;
entry->proc_entry->read_proc = srm_env_read;
entry->proc_entry->write_proc = srm_env_write;
entry->id = var_num;
entry->proc_entry->data = (void *) entry;
- entry->proc_entry->owner = THIS_MODULE;
entry->proc_entry->read_proc = srm_env_read;
entry->proc_entry->write_proc = srm_env_write;
}
printk(KERN_WARNING "unable to create /proc/sram\n");
return -1;
}
- ptr->owner = THIS_MODULE;
ptr->read_proc = sram_proc_read;
return 0;
}
static struct irqaction irq2 = {
.handler = timer_interrupt,
.flags = IRQF_SHARED | IRQF_DISABLED,
- .mask = CPU_MASK_NONE,
.name = "timer",
};
static struct irqaction irq_ipi = {
.handler = crisv32_ipi_interrupt,
.flags = IRQF_DISABLED,
- .mask = CPU_MASK_NONE,
.name = "ipi",
};
static struct irqaction irq_timer = {
.handler = timer_interrupt,
.flags = IRQF_SHARED | IRQF_DISABLED,
- .mask = CPU_MASK_NONE,
.name = "timer"
};
[0] = {
.handler = fpga_interrupt,
.flags = IRQF_DISABLED | IRQF_SHARED,
- .mask = CPU_MASK_NONE,
.name = "fpga.0",
.dev_id = (void *) 0x0028UL,
},
[1] = {
.handler = fpga_interrupt,
.flags = IRQF_DISABLED | IRQF_SHARED,
- .mask = CPU_MASK_NONE,
.name = "fpga.1",
.dev_id = (void *) 0x0050UL,
},
[2] = {
.handler = fpga_interrupt,
.flags = IRQF_DISABLED | IRQF_SHARED,
- .mask = CPU_MASK_NONE,
.name = "fpga.2",
.dev_id = (void *) 0x1c00UL,
},
[3] = {
.handler = fpga_interrupt,
.flags = IRQF_DISABLED | IRQF_SHARED,
- .mask = CPU_MASK_NONE,
.name = "fpga.3",
.dev_id = (void *) 0x6386UL,
}
[0] = {
.handler = fpga_interrupt,
.flags = IRQF_DISABLED,
- .mask = CPU_MASK_NONE,
.name = "fpga.0",
.dev_id = (void *) 0x0700UL,
}
[0] = {
.handler = mb93493_interrupt,
.flags = IRQF_DISABLED | IRQF_SHARED,
- .mask = CPU_MASK_NONE,
.name = "mb93493.0",
.dev_id = (void *) __addr_MB93493_IQSR(0),
},
[1] = {
.handler = mb93493_interrupt,
.flags = IRQF_DISABLED | IRQF_SHARED,
- .mask = CPU_MASK_NONE,
.name = "mb93493.1",
.dev_id = (void *) __addr_MB93493_IQSR(1),
}
static struct irqaction timer_irq = {
.handler = timer_interrupt,
.flags = IRQF_DISABLED,
- .mask = CPU_MASK_NONE,
.name = "timer",
};
.name = "itu",
.handler = timer_interrupt,
.flags = IRQF_DISABLED | IRQF_TIMER,
- .mask = CPU_MASK_NONE,
};
static const int __initdata divide_rate[] = {1, 2, 4, 8};
.name = "timer-16",
.handler = timer_interrupt,
.flags = IRQF_DISABLED | IRQF_TIMER,
- .mask = CPU_MASK_NONE,
};
static const int __initdata divide_rate[] = {1, 2, 4, 8};
.name = "timer-8",
.handler = timer_interrupt,
.flags = IRQF_DISABLED | IRQF_TIMER,
- .mask = CPU_MASK_NONE,
};
static const int __initdata divide_rate[] = {8, 64, 8192};
.name = "tpu",
.handler = timer_interrupt,
.flags = IRQF_DISABLED | IRQF_TIMER,
- .mask = CPU_MASK_NONE,
};
const static int __initdata divide_rate[] = {
*/
#define parent_node(nid) (nid)
-/*
- * Returns the number of the first CPU on Node 'node'.
- */
-#define node_to_first_cpu(node) (cpumask_first(cpumask_of_node(node)))
-
/*
* Determines the node for a given pci bus
*/
*pdir = create_proc_read_entry(
palinfo_entries[j].name, 0, cpu_dir,
palinfo_read_entry, (void *)f.value);
- if (*pdir)
- (*pdir)->owner = THIS_MODULE;
pdir++;
}
}
int __init prominfo_init(void)
{
struct proc_dir_entry **entp;
- struct proc_dir_entry *p;
cnodeid_t cnodeid;
unsigned long nasid;
int size;
sprintf(name, "node%d", cnodeid);
*entp = proc_mkdir(name, sgi_prominfo_entry);
nasid = cnodeid_to_nasid(cnodeid);
- p = create_proc_read_entry("fit", 0, *entp, read_fit_entry,
+ create_proc_read_entry("fit", 0, *entp, read_fit_entry,
(void *)nasid);
- if (p)
- p->owner = THIS_MODULE;
- p = create_proc_read_entry("version", 0, *entp,
+ create_proc_read_entry("version", 0, *entp,
read_version_entry, (void *)nasid);
- if (p)
- p->owner = THIS_MODULE;
entp++;
}
static struct irqaction irq0 = {
.handler = timer_interrupt,
.flags = IRQF_DISABLED,
- .mask = CPU_MASK_NONE,
.name = "MFT2",
};
static struct irqaction cascade = {
.handler = no_action,
- .mask = CPU_MASK_NONE,
.name = "cascade",
};
static struct irqaction irq_cascade = {
.handler = no_action,
.flags = 0,
- .mask = CPU_MASK_NONE,
.name = "cascade",
.dev_id = NULL,
.next = NULL,
#define parent_node(node) (node)
#define node_to_cpumask(node) (hub_data(node)->h_cpus)
#define cpumask_of_node(node) (&hub_data(node)->h_cpus)
-#define node_to_first_cpu(node) (cpumask_first(cpumask_of_node(node)))
struct pci_bus;
extern int pcibus_to_node(struct pci_bus *);
static struct irqaction r4030_timer_irqaction = {
.handler = r4030_timer_interrupt,
.flags = IRQF_DISABLED,
- .mask = CPU_MASK_CPU0,
.name = "R4030 timer",
};
action->handler = sibyte_counter_handler;
action->flags = IRQF_DISABLED | IRQF_PERCPU;
- action->mask = cpumask_of_cpu(cpu);
action->name = name;
action->dev_id = cd;
action->handler = sibyte_counter_handler;
action->flags = IRQF_DISABLED | IRQF_PERCPU;
- action->mask = cpumask_of_cpu(cpu);
action->name = name;
action->dev_id = cd;
static struct irqaction irq0 = {
.handler = timer_interrupt,
.flags = IRQF_DISABLED | IRQF_NOBALANCING,
- .mask = CPU_MASK_NONE,
.name = "timer"
};
cd->min_delta_ns = clockevent_delta2ns(0xF, cd);
clockevents_register_device(cd);
- irq0.mask = cpumask_of_cpu(cpu);
setup_irq(0, &irq0);
}
*/
static struct irqaction irq2 = {
.handler = no_action,
- .mask = CPU_MASK_NONE,
.name = "cascade",
};
static struct irqaction cascade = {
.handler = no_action,
- .mask = CPU_MASK_NONE,
.name = "cascade",
};
static struct irqaction cascade_irqaction = {
.handler = no_action,
- .mask = CPU_MASK_NONE,
.name = "cascade",
};
if (i == 1000) {
for_each_online_node(node)
if (NODEPDA(node)->dump_count == 0) {
- cpu = node_to_first_cpu(node);
+ cpu = cpumask_first(cpumask_of_node(node));
for (n=0; n < CNODE_NUM_CPUS(node); cpu++, n++) {
CPUMASK_SETB(nmied_cpus, cpu);
/*
struct irqaction memerr_irq = {
.handler = crime_memerr_intr,
.flags = IRQF_DISABLED,
- .mask = CPU_MASK_NONE,
.name = "CRIME memory error",
};
struct irqaction cpuerr_irq = {
.handler = crime_cpuerr_intr,
.flags = IRQF_DISABLED,
- .mask = CPU_MASK_NONE,
.name = "CRIME CPU error",
};
* IRQ2 is cascade interrupt to second interrupt controller
*/
static struct irqaction sni_rm200_irq2 = {
- no_action, 0, CPU_MASK_NONE, "cascade", NULL, NULL
+ .handler = no_action,
+ .name = "cascade",
};
static struct resource sni_rm200_pic1_resource = {
static struct irqaction cascade_irqaction = {
.handler = no_action,
- .mask = CPU_MASK_NONE,
.name = "cascade",
};
static struct irqaction timer_irq = {
.handler = timer_interrupt,
.flags = IRQF_DISABLED | IRQF_SHARED | IRQF_TIMER,
- .mask = CPU_MASK_NONE,
.name = "timer",
};
#define cpumask_of_node(node) (&numa_cpumask_lookup_table[node])
-static inline int node_to_first_cpu(int node)
-{
- return cpumask_first(cpumask_of_node(node));
-}
-
int of_node_to_nid(struct device_node *device);
struct pci_bus;
{
if (dp) {
kfree(dp->data);
- dp->owner = NULL;
remove_proc_entry(dp->name, dp->parent);
}
}
static struct irqaction mpc85xxcds_8259_irqaction = {
.handler = mpc85xx_8259_cascade_action,
.flags = IRQF_SHARED,
- .mask = CPU_MASK_NONE,
.name = "8259 cascade",
};
#endif /* PPC_I8259 */
static struct irqaction tbint_irqaction = {
.handler = timebase_interrupt,
- .mask = CPU_MASK_NONE,
.name = "tbint",
};
#if defined(CONFIG_VT) && defined(CONFIG_INPUT_ADBHID) && defined(CONFIG_XMON)
static struct irqaction xmon_irqaction = {
.handler = xmon_irq,
- .mask = CPU_MASK_NONE,
.name = "XMON break",
};
#endif
static struct irqaction xmon_action = {
.handler = xmon_irq,
.flags = 0,
- .mask = CPU_MASK_NONE,
.name = "NMI - XMON"
};
#endif
static struct irqaction gatwick_cascade_action = {
.handler = gatwick_action,
.flags = IRQF_DISABLED,
- .mask = CPU_MASK_NONE,
.name = "cascade",
};
static struct irqaction psurge_irqaction = {
.handler = psurge_primary_intr,
.flags = IRQF_DISABLED,
- .mask = CPU_MASK_NONE,
.name = "primary IPI",
};
static struct irqaction cpm_error_irqaction = {
.handler = cpm_error_interrupt,
- .mask = CPU_MASK_NONE,
.name = "error",
};
#define node_to_cpumask(node) ((void)node, cpu_online_map)
#define cpumask_of_node(node) ((void)node, cpu_online_mask)
-#define node_to_first_cpu(node) ((void)(node),0)
#define pcibus_to_node(bus) ((void)(bus), -1)
#define pcibus_to_cpumask(bus) (pcibus_to_node(bus) == -1 ? \
static struct irqaction irq0 = {
.handler = timer_interrupt,
.flags = IRQF_DISABLED,
- .mask = CPU_MASK_NONE,
.name = "timer",
};
.name = "timer",
.handler = cmt_timer_interrupt,
.flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL,
- .mask = CPU_MASK_NONE,
};
static void cmt_clk_init(struct clk *clk)
.name = "timer",
.handler = mtu2_timer_interrupt,
.flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL,
- .mask = CPU_MASK_NONE,
};
static unsigned int divisors[] = { 1, 4, 16, 64, 1, 1, 256 };
.name = "periodic/oneshot timer",
.handler = tmu_timer_interrupt,
.flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL,
- .mask = CPU_MASK_NONE,
};
static void __init tmu_clk_init(struct clk *clk)
* local TLB.
*/
cpu = smp_processor_id();
- if (!ctx_valid || !cpu_isset(cpu, mm->cpu_vm_mask)) {
- cpu_set(cpu, mm->cpu_vm_mask);
+ if (!ctx_valid || !cpumask_test_cpu(cpu, mm_cpumask(mm))) {
+ cpumask_set_cpu(cpu, mm_cpumask(mm));
__flush_tlb_mm(CTX_HWBITS(mm->context),
SECONDARY_CONTEXT);
}
if (!CTX_VALID(mm->context))
get_new_mmu_context(mm);
cpu = smp_processor_id();
- if (!cpu_isset(cpu, mm->cpu_vm_mask))
- cpu_set(cpu, mm->cpu_vm_mask);
+ if (!cpumask_test_cpu(cpu, mm_cpumask(mm)))
+ cpumask_set_cpu(cpu, mm_cpumask(mm));
load_secondary_context(mm);
__flush_tlb_mm(CTX_HWBITS(mm->context), SECONDARY_CONTEXT);
extern int sparc64_multi_core;
extern void arch_send_call_function_single_ipi(int cpu);
-extern void arch_send_call_function_ipi(cpumask_t mask);
+extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
+#define arch_send_call_function_ipi_mask arch_send_call_function_ipi_mask
/*
* General functions that each host system must provide.
#define switch_to(prev, next, last) do { \
SWITCH_ENTER(prev); \
SWITCH_DO_LAZY_FPU(next); \
- cpu_set(smp_processor_id(), next->active_mm->cpu_vm_mask); \
+ cpumask_set_cpu(smp_processor_id(), mm_cpumask(next->active_mm)); \
__asm__ __volatile__( \
"sethi %%hi(here - 0x8), %%o7\n\t" \
"mov %%g6, %%g3\n\t" \
#define node_to_cpumask_ptr_next(v, node) \
v = &(numa_cpumask_lookup_table[node])
-static inline int node_to_first_cpu(int node)
-{
- return cpumask_first(cpumask_of_node(node));
-}
-
struct pci_bus;
#ifdef CONFIG_PCI
extern int pcibus_to_node(struct pci_bus *pbus);
}
#endif
-#define pcibus_to_cpumask(bus) \
- (pcibus_to_node(bus) == -1 ? \
- CPU_MASK_ALL : \
- node_to_cpumask(pcibus_to_node(bus)))
#define cpumask_of_pcibus(bus) \
(pcibus_to_node(bus) == -1 ? \
- CPU_MASK_ALL_PTR : \
+ cpu_all_mask : \
cpumask_of_node(pcibus_to_node(bus)))
#define SD_NODE_INIT (struct sched_domain) { \
#define smt_capable() (sparc64_multi_core)
#endif /* CONFIG_SMP */
-#define cpu_coregroup_map(cpu) (cpu_core_map[cpu])
#define cpu_coregroup_mask(cpu) (&cpu_core_map[cpu])
#endif /* _ASM_SPARC64_TOPOLOGY_H */
if (cpu_list[i] == CPU_SENTINEL)
continue;
- if (cpu_list[i] < NR_CPUS)
+ if (cpu_list[i] < nr_cpu_ids)
cpu_set(cpu_list[i], mask);
}
flush_cache_all();
action->flags = irqflags;
- cpus_clear(action->mask);
action->name = devname;
action->dev_id = NULL;
action->next = NULL;
action->handler = handler;
action->flags = irqflags;
- cpus_clear(action->mask);
action->name = devname;
action->next = NULL;
action->dev_id = dev_id;
spin_lock_irqsave(&irq_rover_lock, flags);
while (!cpu_online(irq_rover)) {
- if (++irq_rover >= NR_CPUS)
+ if (++irq_rover >= nr_cpu_ids)
irq_rover = 0;
}
cpuid = irq_rover;
do {
- if (++irq_rover >= NR_CPUS)
+ if (++irq_rover >= nr_cpu_ids)
irq_rover = 0;
} while (!cpu_online(irq_rover));
led = proc_create("led", 0, NULL, &led_proc_fops);
if (!led)
return -ENOMEM;
- led->owner = THIS_MODULE;
printk(KERN_INFO
"led: version %s, Lars Kotthoff <metalhead@metalhead.ws>\n",
max_cpu = NR_CPUS;
}
for (i = 0; i < max_cpu; i++)
- cpu_set(i, cpu_possible_map);
+ set_cpu_possible(i, true);
}
#endif
#include <linux/module.h>
#include <linux/kprobes.h>
#include <linux/kernel_stat.h>
+#include <linux/reboot.h>
#include <linux/slab.h>
#include <linux/kdebug.h>
#include <linux/delay.h>
}
EXPORT_SYMBOL_GPL(nmi_adjust_hz);
+static int nmi_shutdown(struct notifier_block *nb, unsigned long cmd, void *p)
+{
+ on_each_cpu(stop_watchdog, NULL, 1);
+ return 0;
+}
+
+static struct notifier_block nmi_reboot_notifier = {
+ .notifier_call = nmi_shutdown,
+};
+
int __init nmi_init(void)
{
+ int err;
+
nmi_usable = 1;
on_each_cpu(start_watchdog, NULL, 1);
- return check_nmi_watchdog();
+ err = check_nmi_watchdog();
+ if (!err) {
+ err = register_reboot_notifier(&nmi_reboot_notifier);
+ if (err) {
+ nmi_usable = 0;
+ on_each_cpu(stop_watchdog, NULL, 1);
+ }
+ }
+ return err;
}
static int __init setup_nmi_watchdog(char *str)
}
#ifdef CONFIG_SMP
- cpu_set(cpuid, cpu_present_map);
- cpu_set(cpuid, cpu_possible_map);
+ set_cpu_present(cpuid, true);
+ set_cpu_possible(cpuid, true);
#endif
}
extern void smp4m_smp_done(void);
extern void smp4d_smp_done(void);
unsigned long bogosum = 0;
- int cpu, num;
+ int cpu, num = 0;
- for (cpu = 0, num = 0; cpu < NR_CPUS; cpu++)
- if (cpu_online(cpu)) {
- num++;
- bogosum += cpu_data(cpu).udelay_val;
- }
+ for_each_online_cpu(cpu) {
+ num++;
+ bogosum += cpu_data(cpu).udelay_val;
+ }
printk("Total of %d processors activated (%lu.%02lu BogoMIPS).\n",
num, bogosum/(500000/HZ),
void smp_flush_cache_mm(struct mm_struct *mm)
{
if(mm->context != NO_CONTEXT) {
- cpumask_t cpu_mask = mm->cpu_vm_mask;
+ cpumask_t cpu_mask = *mm_cpumask(mm);
cpu_clear(smp_processor_id(), cpu_mask);
if (!cpus_empty(cpu_mask))
xc1((smpfunc_t) BTFIXUP_CALL(local_flush_cache_mm), (unsigned long) mm);
void smp_flush_tlb_mm(struct mm_struct *mm)
{
if(mm->context != NO_CONTEXT) {
- cpumask_t cpu_mask = mm->cpu_vm_mask;
+ cpumask_t cpu_mask = *mm_cpumask(mm);
cpu_clear(smp_processor_id(), cpu_mask);
if (!cpus_empty(cpu_mask)) {
xc1((smpfunc_t) BTFIXUP_CALL(local_flush_tlb_mm), (unsigned long) mm);
if(atomic_read(&mm->mm_users) == 1 && current->active_mm == mm)
- mm->cpu_vm_mask = cpumask_of_cpu(smp_processor_id());
+ cpumask_copy(mm_cpumask(mm),
+ cpumask_of(smp_processor_id()));
}
local_flush_tlb_mm(mm);
}
struct mm_struct *mm = vma->vm_mm;
if (mm->context != NO_CONTEXT) {
- cpumask_t cpu_mask = mm->cpu_vm_mask;
+ cpumask_t cpu_mask = *mm_cpumask(mm);
cpu_clear(smp_processor_id(), cpu_mask);
if (!cpus_empty(cpu_mask))
xc3((smpfunc_t) BTFIXUP_CALL(local_flush_cache_range), (unsigned long) vma, start, end);
struct mm_struct *mm = vma->vm_mm;
if (mm->context != NO_CONTEXT) {
- cpumask_t cpu_mask = mm->cpu_vm_mask;
+ cpumask_t cpu_mask = *mm_cpumask(mm);
cpu_clear(smp_processor_id(), cpu_mask);
if (!cpus_empty(cpu_mask))
xc3((smpfunc_t) BTFIXUP_CALL(local_flush_tlb_range), (unsigned long) vma, start, end);
struct mm_struct *mm = vma->vm_mm;
if(mm->context != NO_CONTEXT) {
- cpumask_t cpu_mask = mm->cpu_vm_mask;
+ cpumask_t cpu_mask = *mm_cpumask(mm);
cpu_clear(smp_processor_id(), cpu_mask);
if (!cpus_empty(cpu_mask))
xc2((smpfunc_t) BTFIXUP_CALL(local_flush_cache_page), (unsigned long) vma, page);
struct mm_struct *mm = vma->vm_mm;
if(mm->context != NO_CONTEXT) {
- cpumask_t cpu_mask = mm->cpu_vm_mask;
+ cpumask_t cpu_mask = *mm_cpumask(mm);
cpu_clear(smp_processor_id(), cpu_mask);
if (!cpus_empty(cpu_mask))
xc2((smpfunc_t) BTFIXUP_CALL(local_flush_tlb_page), (unsigned long) vma, page);
void smp_flush_sig_insns(struct mm_struct *mm, unsigned long insn_addr)
{
- cpumask_t cpu_mask = mm->cpu_vm_mask;
+ cpumask_t cpu_mask = *mm_cpumask(mm);
cpu_clear(smp_processor_id(), cpu_mask);
if (!cpus_empty(cpu_mask))
xc2((smpfunc_t) BTFIXUP_CALL(local_flush_sig_insns), (unsigned long) mm, insn_addr);
instance = 0;
while (!cpu_find_by_instance(instance, NULL, &mid)) {
if (mid < NR_CPUS) {
- cpu_set(mid, cpu_possible_map);
- cpu_set(mid, cpu_present_map);
+ set_cpu_possible(mid, true);
+ set_cpu_present(mid, true);
}
instance++;
}
printk("boot cpu id != 0, this could work but is untested\n");
current_thread_info()->cpu = cpuid;
- cpu_set(cpuid, cpu_online_map);
- cpu_set(cpuid, cpu_possible_map);
+ set_cpu_online(cpuid, true);
+ set_cpu_possible(cpuid, true);
}
int __cpuinit __cpu_up(unsigned int cpu)
extern unsigned long xcall_call_function;
-void arch_send_call_function_ipi(cpumask_t mask)
+void arch_send_call_function_ipi_mask(const struct cpumask *mask)
{
- xcall_deliver((u64) &xcall_call_function, 0, 0, &mask);
+ xcall_deliver((u64) &xcall_call_function, 0, 0, mask);
}
extern unsigned long xcall_call_function_single;
void smp_tsb_sync(struct mm_struct *mm)
{
- smp_call_function_mask(mm->cpu_vm_mask, tsb_sync, mm, 1);
+ smp_call_function_many(mm_cpumask(mm), tsb_sync, mm, 1);
}
extern unsigned long xcall_flush_tlb_mm;
int cpu = get_cpu();
if (atomic_read(&mm->mm_users) == 1) {
- mm->cpu_vm_mask = cpumask_of_cpu(cpu);
+ cpumask_copy(mm_cpumask(mm), cpumask_of(cpu));
goto local_flush_and_out;
}
smp_cross_call_masked(&xcall_flush_tlb_mm,
ctx, 0, 0,
- &mm->cpu_vm_mask);
+ mm_cpumask(mm));
local_flush_and_out:
__flush_tlb_mm(ctx, SECONDARY_CONTEXT);
int cpu = get_cpu();
if (mm == current->mm && atomic_read(&mm->mm_users) == 1)
- mm->cpu_vm_mask = cpumask_of_cpu(cpu);
+ cpumask_copy(mm_cpumask(mm), cpumask_of(cpu));
else
smp_cross_call_masked(&xcall_flush_tlb_pending,
ctx, nr, (unsigned long) vaddrs,
- &mm->cpu_vm_mask);
+ mm_cpumask(mm));
__flush_tlb_pending(ctx, nr, vaddrs);
action->handler = handler;
action->flags = irqflags;
- cpus_clear(action->mask);
action->name = devname;
action->next = NULL;
action->dev_id = dev_id;
spin_lock_irqsave(&sun4d_imsk_lock, flags);
cc_set_imsk(cc_get_imsk() & ~0x4000); /* Allow PIL 14 as well */
spin_unlock_irqrestore(&sun4d_imsk_lock, flags);
- cpu_set(cpuid, cpu_online_map);
+ set_cpu_online(cpuid, true);
}
/* setup cpu list for irq rotation */
first = 0;
prev = &first;
- for (i = 0; i < NR_CPUS; i++)
- if (cpu_online(i)) {
- *prev = i;
- prev = &cpu_data(i).next;
- }
+ for_each_online_cpu(i) {
+ *prev = i;
+ prev = &cpu_data(i).next;
+ }
*prev = first;
local_flush_cache_all();
local_irq_enable();
- cpu_set(cpuid, cpu_online_map);
+ set_cpu_online(cpuid, true);
}
/*
/* setup cpu list for irq rotation */
first = 0;
prev = &first;
- for (i = 0; i < NR_CPUS; i++) {
- if (cpu_online(i)) {
- *prev = i;
- prev = &cpu_data(i).next;
- }
+ for_each_online_cpu(i) {
+ *prev = i;
+ prev = &cpu_data(i).next;
}
*prev = first;
local_flush_cache_all();
if (strcmp(name, "cpu"))
continue;
id = mdesc_get_property(md, target, "id", NULL);
- if (*id < NR_CPUS)
+ if (*id < nr_cpu_ids)
cpu_set(*id, *mask);
}
}
min_line_size = vac_line_size;
//FIXME: cpus not contiguous!!
cpu++;
- if (cpu >= NR_CPUS || !cpu_online(cpu))
+ if (cpu >= nr_cpu_ids || !cpu_online(cpu))
break;
#else
break;
#ifndef __ASSEMBLY__
#include <asm/hw_irq.h>
+#include <asm/kvm_para.h>
/*G:031 But first, how does our Guest contact the Host to ask for privileged
* operations? There are two ways: the direct way is to make a "hypercall",
* to make requests of the Host Itself.
*
- * Our hypercall mechanism uses the highest unused trap code (traps 32 and
- * above are used by real hardware interrupts). Fifteen hypercalls are
+ * We use the KVM hypercall mechanism. Eighteen hypercalls are
* available: the hypercall number is put in the %eax register, and the
- * arguments (when required) are placed in %edx, %ebx and %ecx. If a return
+ * arguments (when required) are placed in %ebx, %ecx and %edx. If a return
* value makes sense, it's returned in %eax.
*
* Grossly invalid calls result in Sudden Death at the hands of the vengeful
* Host, rather than returning failure. This reflects Winston Churchill's
* definition of a gentleman: "someone who is only rude intentionally". */
-static inline unsigned long
-hcall(unsigned long call,
- unsigned long arg1, unsigned long arg2, unsigned long arg3)
-{
- /* "int" is the Intel instruction to trigger a trap. */
- asm volatile("int $" __stringify(LGUEST_TRAP_ENTRY)
- /* The call in %eax (aka "a") might be overwritten */
- : "=a"(call)
- /* The arguments are in %eax, %edx, %ebx & %ecx */
- : "a"(call), "d"(arg1), "b"(arg2), "c"(arg3)
- /* "memory" means this might write somewhere in memory.
- * This isn't true for all calls, but it's safe to tell
- * gcc that it might happen so it doesn't get clever. */
- : "memory");
- return call;
-}
/*:*/
/* Can't use our min() macro here: needs to be a constant */
#define LHCALL_RING_SIZE 64
struct hcall_args {
/* These map directly onto eax, ebx, ecx, edx in struct lguest_regs */
- unsigned long arg0, arg2, arg3, arg1;
+ unsigned long arg0, arg1, arg2, arg3;
};
#endif /* !__ASSEMBLY__ */
{
return cpu_online_mask;
}
-static inline int node_to_first_cpu(int node)
-{
- return cpumask_first(cpu_online_mask);
-}
static inline void setup_node_to_cpumask_map(void) { }
#include <asm-generic/topology.h>
-#ifdef CONFIG_NUMA
-/* Returns the number of the first CPU on Node 'node'. */
-static inline int node_to_first_cpu(int node)
-{
- return cpumask_first(cpumask_of_node(node));
-}
-#endif
-
extern const struct cpumask *cpu_coregroup_mask(int cpu);
#ifdef ENABLE_TOPO_DEFINES
struct apm_user *as;
device_suspend(PMSG_SUSPEND);
- local_irq_disable();
+
device_power_down(PMSG_SUSPEND);
+
+ local_irq_disable();
sysdev_suspend(PMSG_SUSPEND);
local_irq_enable();
if (err != APM_SUCCESS)
apm_error("suspend", err);
err = (err == APM_SUCCESS) ? 0 : -EIO;
+
sysdev_resume();
- device_power_up(PMSG_RESUME);
local_irq_enable();
+
+ device_power_up(PMSG_RESUME);
+
device_resume(PMSG_RESUME);
queue_event(APM_NORMAL_RESUME, NULL);
spin_lock(&user_list_lock);
{
int err;
- local_irq_disable();
device_power_down(PMSG_SUSPEND);
+
+ local_irq_disable();
sysdev_suspend(PMSG_SUSPEND);
local_irq_enable();
local_irq_disable();
sysdev_resume();
- device_power_up(PMSG_RESUME);
local_irq_enable();
+
+ device_power_up(PMSG_RESUME);
}
static apm_event_t get_event(void)
.release = mtrr_close,
};
-
-static struct proc_dir_entry *proc_root_mtrr;
-
-
static int mtrr_seq_show(struct seq_file *seq, void *offset)
{
char factor;
(!cpu_has(c, X86_FEATURE_CENTAUR_MCR)))
return -ENODEV;
- proc_root_mtrr =
- proc_create("mtrr", S_IWUSR | S_IRUGO, NULL, &mtrr_fops);
-
- if (proc_root_mtrr)
- proc_root_mtrr->owner = THIS_MODULE;
+ proc_create("mtrr", S_IWUSR | S_IRUGO, NULL, &mtrr_fops);
return 0;
}
*/
static struct irqaction fpu_irq = {
.handler = math_error_irq,
- .mask = CPU_MASK_NONE,
.name = "fpu",
};
*/
static struct irqaction irq2 = {
.handler = no_action,
- .mask = CPU_MASK_NONE,
.name = "cascade",
};
static struct irqaction irq2 = {
.handler = no_action,
- .mask = CPU_MASK_NONE,
.name = "cascade",
};
DEFINE_PER_CPU(vector_irq_t, vector_irq) = {
static struct irqaction mfgptirq = {
.handler = mfgpt_tick,
.flags = IRQF_DISABLED | IRQF_NOBALANCING,
- .mask = CPU_MASK_NONE,
.name = "mfgpt-timer"
};
static struct irqaction irq0 = {
.handler = timer_interrupt,
.flags = IRQF_DISABLED | IRQF_NOBALANCING | IRQF_IRQPOLL | IRQF_TIMER,
- .mask = CPU_MASK_NONE,
.name = "timer"
};
static struct irqaction irq0 = {
.handler = timer_interrupt,
.flags = IRQF_DISABLED | IRQF_IRQPOLL | IRQF_NOBALANCING | IRQF_TIMER,
- .mask = CPU_MASK_NONE,
.name = "timer"
};
if (!hpet_enable())
setup_pit_timer();
- irq0.mask = cpumask_of_cpu(0);
setup_irq(0, &irq0);
}
.name = "vmi-timer",
.handler = vmi_timer_interrupt,
.flags = IRQF_DISABLED | IRQF_NOBALANCING | IRQF_TIMER,
- .mask = CPU_MASK_ALL,
};
static void __devinit vmi_time_init_clockevent(void)
local_irq_save(flags);
if (lguest_data.hcall_status[next_call] != 0xFF) {
/* Table full, so do normal hcall which will flush table. */
- hcall(call, arg1, arg2, arg3);
+ kvm_hypercall3(call, arg1, arg2, arg3);
} else {
lguest_data.hcalls[next_call].arg0 = call;
lguest_data.hcalls[next_call].arg1 = arg1;
*
* So, when we're in lazy mode, we call async_hcall() to store the call for
* future processing: */
-static void lazy_hcall(unsigned long call,
+static void lazy_hcall1(unsigned long call,
+ unsigned long arg1)
+{
+ if (paravirt_get_lazy_mode() == PARAVIRT_LAZY_NONE)
+ kvm_hypercall1(call, arg1);
+ else
+ async_hcall(call, arg1, 0, 0);
+}
+
+static void lazy_hcall2(unsigned long call,
+ unsigned long arg1,
+ unsigned long arg2)
+{
+ if (paravirt_get_lazy_mode() == PARAVIRT_LAZY_NONE)
+ kvm_hypercall2(call, arg1, arg2);
+ else
+ async_hcall(call, arg1, arg2, 0);
+}
+
+static void lazy_hcall3(unsigned long call,
unsigned long arg1,
unsigned long arg2,
unsigned long arg3)
{
if (paravirt_get_lazy_mode() == PARAVIRT_LAZY_NONE)
- hcall(call, arg1, arg2, arg3);
+ kvm_hypercall3(call, arg1, arg2, arg3);
else
async_hcall(call, arg1, arg2, arg3);
}
static void lguest_leave_lazy_mode(void)
{
paravirt_leave_lazy(paravirt_get_lazy_mode());
- hcall(LHCALL_FLUSH_ASYNC, 0, 0, 0);
+ kvm_hypercall0(LHCALL_FLUSH_ASYNC);
}
/*G:033
/* Keep the local copy up to date. */
native_write_idt_entry(dt, entrynum, g);
/* Tell Host about this new entry. */
- hcall(LHCALL_LOAD_IDT_ENTRY, entrynum, desc[0], desc[1]);
+ kvm_hypercall3(LHCALL_LOAD_IDT_ENTRY, entrynum, desc[0], desc[1]);
}
/* Changing to a different IDT is very rare: we keep the IDT up-to-date every
struct desc_struct *idt = (void *)desc->address;
for (i = 0; i < (desc->size+1)/8; i++)
- hcall(LHCALL_LOAD_IDT_ENTRY, i, idt[i].a, idt[i].b);
+ kvm_hypercall3(LHCALL_LOAD_IDT_ENTRY, i, idt[i].a, idt[i].b);
}
/*
*/
static void lguest_load_gdt(const struct desc_ptr *desc)
{
- BUG_ON((desc->size+1)/8 != GDT_ENTRIES);
- hcall(LHCALL_LOAD_GDT, __pa(desc->address), GDT_ENTRIES, 0);
+ BUG_ON((desc->size + 1) / 8 != GDT_ENTRIES);
+ kvm_hypercall2(LHCALL_LOAD_GDT, __pa(desc->address), GDT_ENTRIES);
}
/* For a single GDT entry which changes, we do the lazy thing: alter our GDT,
const void *desc, int type)
{
native_write_gdt_entry(dt, entrynum, desc, type);
- hcall(LHCALL_LOAD_GDT, __pa(dt), GDT_ENTRIES, 0);
+ kvm_hypercall2(LHCALL_LOAD_GDT, __pa(dt), GDT_ENTRIES);
}
/* OK, I lied. There are three "thread local storage" GDT entries which change
* can't handle us removing entries we're currently using. So we clear
* the GS register here: if it's needed it'll be reloaded anyway. */
lazy_load_gs(0);
- lazy_hcall(LHCALL_LOAD_TLS, __pa(&t->tls_array), cpu, 0);
+ lazy_hcall2(LHCALL_LOAD_TLS, __pa(&t->tls_array), cpu);
}
/*G:038 That's enough excitement for now, back to ploughing through each of
static unsigned long current_cr0;
static void lguest_write_cr0(unsigned long val)
{
- lazy_hcall(LHCALL_TS, val & X86_CR0_TS, 0, 0);
+ lazy_hcall1(LHCALL_TS, val & X86_CR0_TS);
current_cr0 = val;
}
* the vowels have been optimized out. */
static void lguest_clts(void)
{
- lazy_hcall(LHCALL_TS, 0, 0, 0);
+ lazy_hcall1(LHCALL_TS, 0);
current_cr0 &= ~X86_CR0_TS;
}
static void lguest_write_cr3(unsigned long cr3)
{
lguest_data.pgdir = cr3;
- lazy_hcall(LHCALL_NEW_PGTABLE, cr3, 0, 0);
+ lazy_hcall1(LHCALL_NEW_PGTABLE, cr3);
cr3_changed = true;
}
* into a process' address space. We set the entry then tell the Host the
* toplevel and address this corresponds to. The Guest uses one pagetable per
* process, so we need to tell the Host which one we're changing (mm->pgd). */
+static void lguest_pte_update(struct mm_struct *mm, unsigned long addr,
+ pte_t *ptep)
+{
+ lazy_hcall3(LHCALL_SET_PTE, __pa(mm->pgd), addr, ptep->pte_low);
+}
+
static void lguest_set_pte_at(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, pte_t pteval)
{
*ptep = pteval;
- lazy_hcall(LHCALL_SET_PTE, __pa(mm->pgd), addr, pteval.pte_low);
+ lguest_pte_update(mm, addr, ptep);
}
/* The Guest calls this to set a top-level entry. Again, we set the entry then
static void lguest_set_pmd(pmd_t *pmdp, pmd_t pmdval)
{
*pmdp = pmdval;
- lazy_hcall(LHCALL_SET_PMD, __pa(pmdp)&PAGE_MASK,
- (__pa(pmdp)&(PAGE_SIZE-1))/4, 0);
+ lazy_hcall2(LHCALL_SET_PMD, __pa(pmdp) & PAGE_MASK,
+ (__pa(pmdp) & (PAGE_SIZE - 1)) / 4);
}
/* There are a couple of legacy places where the kernel sets a PTE, but we
{
*ptep = pteval;
if (cr3_changed)
- lazy_hcall(LHCALL_FLUSH_TLB, 1, 0, 0);
+ lazy_hcall1(LHCALL_FLUSH_TLB, 1);
}
/* Unfortunately for Lguest, the pv_mmu_ops for page tables were based on
static void lguest_flush_tlb_single(unsigned long addr)
{
/* Simply set it to zero: if it was not, it will fault back in. */
- lazy_hcall(LHCALL_SET_PTE, lguest_data.pgdir, addr, 0);
+ lazy_hcall3(LHCALL_SET_PTE, lguest_data.pgdir, addr, 0);
}
/* This is what happens after the Guest has removed a large number of entries.
* have changed, ie. virtual addresses below PAGE_OFFSET. */
static void lguest_flush_tlb_user(void)
{
- lazy_hcall(LHCALL_FLUSH_TLB, 0, 0, 0);
+ lazy_hcall1(LHCALL_FLUSH_TLB, 0);
}
/* This is called when the kernel page tables have changed. That's not very
* slow), so it's worth separating this from the user flushing above. */
static void lguest_flush_tlb_kernel(void)
{
- lazy_hcall(LHCALL_FLUSH_TLB, 1, 0, 0);
+ lazy_hcall1(LHCALL_FLUSH_TLB, 1);
}
/*
}
/* Please wake us this far in the future. */
- hcall(LHCALL_SET_CLOCKEVENT, delta, 0, 0);
+ kvm_hypercall1(LHCALL_SET_CLOCKEVENT, delta);
return 0;
}
case CLOCK_EVT_MODE_UNUSED:
case CLOCK_EVT_MODE_SHUTDOWN:
/* A 0 argument shuts the clock down. */
- hcall(LHCALL_SET_CLOCKEVENT, 0, 0, 0);
+ kvm_hypercall0(LHCALL_SET_CLOCKEVENT);
break;
case CLOCK_EVT_MODE_ONESHOT:
/* This is what we expect. */
static void lguest_load_sp0(struct tss_struct *tss,
struct thread_struct *thread)
{
- lazy_hcall(LHCALL_SET_STACK, __KERNEL_DS|0x1, thread->sp0,
- THREAD_SIZE/PAGE_SIZE);
+ lazy_hcall3(LHCALL_SET_STACK, __KERNEL_DS | 0x1, thread->sp0,
+ THREAD_SIZE / PAGE_SIZE);
}
/* Let's just say, I wouldn't do debugging under a Guest. */
/* STOP! Until an interrupt comes in. */
static void lguest_safe_halt(void)
{
- hcall(LHCALL_HALT, 0, 0, 0);
+ kvm_hypercall0(LHCALL_HALT);
}
/* The SHUTDOWN hypercall takes a string to describe what's happening, and
* rather than virtual addresses, so we use __pa() here. */
static void lguest_power_off(void)
{
- hcall(LHCALL_SHUTDOWN, __pa("Power down"), LGUEST_SHUTDOWN_POWEROFF, 0);
+ kvm_hypercall2(LHCALL_SHUTDOWN, __pa("Power down"),
+ LGUEST_SHUTDOWN_POWEROFF);
}
/*
*/
static int lguest_panic(struct notifier_block *nb, unsigned long l, void *p)
{
- hcall(LHCALL_SHUTDOWN, __pa(p), LGUEST_SHUTDOWN_POWEROFF, 0);
+ kvm_hypercall2(LHCALL_SHUTDOWN, __pa(p), LGUEST_SHUTDOWN_POWEROFF);
/* The hcall won't return, but to keep gcc happy, we're "done". */
return NOTIFY_DONE;
}
len = sizeof(scratch) - 1;
scratch[len] = '\0';
memcpy(scratch, buf, len);
- hcall(LHCALL_NOTIFY, __pa(scratch), 0, 0);
+ kvm_hypercall1(LHCALL_NOTIFY, __pa(scratch));
/* This routine returns the number of bytes actually written. */
return len;
* Launcher to reboot us. */
static void lguest_restart(char *reason)
{
- hcall(LHCALL_SHUTDOWN, __pa(reason), LGUEST_SHUTDOWN_RESTART, 0);
+ kvm_hypercall2(LHCALL_SHUTDOWN, __pa(reason), LGUEST_SHUTDOWN_RESTART);
}
/*G:050
pv_mmu_ops.read_cr3 = lguest_read_cr3;
pv_mmu_ops.lazy_mode.enter = paravirt_enter_lazy_mmu;
pv_mmu_ops.lazy_mode.leave = lguest_leave_lazy_mode;
+ pv_mmu_ops.pte_update = lguest_pte_update;
+ pv_mmu_ops.pte_update_defer = lguest_pte_update;
#ifdef CONFIG_X86_LOCAL_APIC
/* apic read/write intercepts */
/* We make the "initialization" hypercall now to tell the Host about
* us, and also find out where it put our page tables. */
movl $LHCALL_LGUEST_INIT, %eax
- movl $lguest_data - __PAGE_OFFSET, %edx
- int $LGUEST_TRAP_ENTRY
+ movl $lguest_data - __PAGE_OFFSET, %ebx
+ .byte 0x0f,0x01,0xc1 /* KVM_HYPERCALL */
/* Set up the initial stack so we can run C code. */
movl $(init_thread_union+THREAD_SIZE),%esp
acpi_ac_dir);
if (!acpi_device_dir(device))
return -ENODEV;
- acpi_device_dir(device)->owner = THIS_MODULE;
}
/* 'state' [R] */
acpi_battery_dir);
if (!acpi_device_dir(device))
return -ENODEV;
- acpi_device_dir(device)->owner = THIS_MODULE;
}
for (i = 0; i < ACPI_BATTERY_NUMFILES; ++i) {
if (!entry)
return -ENODEV;
- entry->owner = THIS_MODULE;
acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), entry);
if (!acpi_device_dir(device))
return -ENODEV;
- acpi_device_dir(device)->owner = THIS_MODULE;
/* 'info' [R] */
entry = proc_create_data(ACPI_BUTTON_FILE_INFO,
acpi_button_dir = proc_mkdir(ACPI_BUTTON_CLASS, acpi_root_dir);
if (!acpi_button_dir)
return -ENODEV;
- acpi_button_dir->owner = THIS_MODULE;
result = acpi_bus_register_driver(&acpi_button_driver);
if (result < 0) {
remove_proc_entry(ACPI_BUTTON_CLASS, acpi_root_dir);
acpi_fan_dir);
if (!acpi_device_dir(device))
return -ENODEV;
- acpi_device_dir(device)->owner = THIS_MODULE;
}
/* 'status' [R/W] */
acpi_fan_dir = proc_mkdir(ACPI_FAN_CLASS, acpi_root_dir);
if (!acpi_fan_dir)
return -ENODEV;
- acpi_fan_dir->owner = THIS_MODULE;
#endif
result = acpi_bus_register_driver(&acpi_fan_driver);
if (!acpi_device_dir(device))
return -ENODEV;
}
- acpi_device_dir(device)->owner = THIS_MODULE;
/* 'info' [R] */
entry = proc_create_data(ACPI_PROCESSOR_FILE_INFO,
acpi_processor_dir = proc_mkdir(ACPI_PROCESSOR_CLASS, acpi_root_dir);
if (!acpi_processor_dir)
return -ENOMEM;
- acpi_processor_dir->owner = THIS_MODULE;
/*
* Check whether the system is DMI table. If yes, OSPM
if (!*dir) {
return -ENODEV;
}
- (*dir)->owner = THIS_MODULE;
}
/* 'info' [R] */
acpi_thermal_dir);
if (!acpi_device_dir(device))
return -ENODEV;
- acpi_device_dir(device)->owner = THIS_MODULE;
}
/* 'state' [R] */
acpi_thermal_dir = proc_mkdir(ACPI_THERMAL_CLASS, acpi_root_dir);
if (!acpi_thermal_dir)
return -ENODEV;
- acpi_thermal_dir->owner = THIS_MODULE;
result = acpi_bus_register_driver(&acpi_thermal_driver);
if (result < 0) {
if (!device_dir)
return -ENOMEM;
- device_dir->owner = THIS_MODULE;
-
/* 'info' [R] */
entry = proc_create_data("info", S_IRUGO, device_dir,
&acpi_video_device_info_fops, acpi_driver_data(device));
if (!device_dir)
return -ENOMEM;
- device_dir->owner = THIS_MODULE;
-
/* 'info' [R] */
entry = proc_create_data("info", S_IRUGO, device_dir,
&acpi_video_bus_info_fops,
acpi_video_dir = proc_mkdir(ACPI_VIDEO_CLASS, acpi_root_dir);
if (!acpi_video_dir)
return -ENODEV;
- acpi_video_dir->owner = THIS_MODULE;
result = acpi_bus_register_driver(&acpi_video_bus);
if (result < 0) {
#define print_cpus_func(type) \
static ssize_t print_cpus_##type(struct sysdev_class *class, char *buf) \
{ \
- return print_cpus_map(buf, &cpu_##type##_map); \
+ return print_cpus_map(buf, cpu_##type##_mask); \
} \
static struct sysdev_class_attribute attr_##type##_map = \
_SYSDEV_CLASS_ATTR(type, 0444, print_cpus_##type, NULL)
#include <linux/pm.h>
#include <linux/resume-trace.h>
#include <linux/rwsem.h>
+#include <linux/interrupt.h>
#include "../base.h"
#include "power.h"
* Execute the appropriate "noirq resume" callback for all devices marked
* as DPM_OFF_IRQ.
*
- * Must be called with interrupts disabled and only one CPU running.
+ * Must be called under dpm_list_mtx. Device drivers should not receive
+ * interrupts while it's being executed.
*/
static void dpm_power_up(pm_message_t state)
{
* device_power_up - Turn on all devices that need special attention.
* @state: PM transition of the system being carried out.
*
- * Power on system devices, then devices that required we shut them down
- * with interrupts disabled.
- *
- * Must be called with interrupts disabled.
+ * Call the "early" resume handlers and enable device drivers to receive
+ * interrupts.
*/
void device_power_up(pm_message_t state)
{
dpm_power_up(state);
+ resume_device_irqs();
}
EXPORT_SYMBOL_GPL(device_power_up);
* device_power_down - Shut down special devices.
* @state: PM transition of the system being carried out.
*
- * Power down devices that require interrupts to be disabled.
- * Then power down system devices.
+ * Prevent device drivers from receiving interrupts and call the "late"
+ * suspend handlers.
*
- * Must be called with interrupts disabled and only one CPU running.
+ * Must be called under dpm_list_mtx.
*/
int device_power_down(pm_message_t state)
{
struct device *dev;
int error = 0;
+ suspend_device_irqs();
list_for_each_entry_reverse(dev, &dpm_list, power.entry) {
error = suspend_device_noirq(dev, state);
if (error) {
dev->power.status = DPM_OFF_IRQ;
}
if (error)
- dpm_power_up(resume_event(state));
+ device_power_up(resume_event(state));
return error;
}
EXPORT_SYMBOL_GPL(device_power_down);
#include <linux/pm.h>
#include <linux/device.h>
#include <linux/mutex.h>
+#include <linux/interrupt.h>
#include "base.h"
struct sysdev_driver *drv, *err_drv;
int ret;
+ pr_debug("Checking wake-up interrupts\n");
+
+ /* Return error code if there are any wake-up interrupts pending */
+ ret = check_wakeup_irqs();
+ if (ret)
+ return ret;
+
pr_debug("Suspending System Devices\n");
list_for_each_entry_reverse(cls, &system_kset->list, kset.kobj.entry) {
dev_warn(&dev->core, "failed to create /proc entry\n");
return;
}
-
- pde->owner = THIS_MODULE;
pde->data = priv;
}
int ipmi_smi_add_proc_entry(ipmi_smi_t smi, char *name,
read_proc_t *read_proc,
- void *data, struct module *owner)
+ void *data)
{
int rv = 0;
#ifdef CONFIG_PROC_FS
} else {
file->data = data;
file->read_proc = read_proc;
- file->owner = owner;
mutex_lock(&smi->proc_entry_lock);
/* Stick it on the list. */
smi->proc_dir = proc_mkdir(smi->proc_dir_name, proc_ipmi_root);
if (!smi->proc_dir)
rv = -ENOMEM;
- else
- smi->proc_dir->owner = THIS_MODULE;
if (rv == 0)
rv = ipmi_smi_add_proc_entry(smi, "stats",
stat_file_read_proc,
- smi, THIS_MODULE);
+ smi);
if (rv == 0)
rv = ipmi_smi_add_proc_entry(smi, "ipmb",
ipmb_file_read_proc,
- smi, THIS_MODULE);
+ smi);
if (rv == 0)
rv = ipmi_smi_add_proc_entry(smi, "version",
version_file_read_proc,
- smi, THIS_MODULE);
+ smi);
#endif /* CONFIG_PROC_FS */
return rv;
return -ENOMEM;
}
- proc_ipmi_root->owner = THIS_MODULE;
#endif /* CONFIG_PROC_FS */
setup_timer(&ipmi_timer, ipmi_timeout, 0);
rv = ipmi_smi_add_proc_entry(new_smi->intf, "type",
type_file_read_proc,
- new_smi, THIS_MODULE);
+ new_smi);
if (rv) {
printk(KERN_ERR
"ipmi_si: Unable to create proc entry: %d\n",
rv = ipmi_smi_add_proc_entry(new_smi->intf, "si_stats",
stat_file_read_proc,
- new_smi, THIS_MODULE);
+ new_smi);
if (rv) {
printk(KERN_ERR
"ipmi_si: Unable to create proc entry: %d\n",
rv = ipmi_smi_add_proc_entry(new_smi->intf, "params",
param_read_proc,
- new_smi, THIS_MODULE);
+ new_smi);
if (rv) {
printk(KERN_ERR
"ipmi_si: Unable to create proc entry: %d\n",
* pointing to completely the wrong place for example
*/
static void dmi_table(u8 *buf, int len, int num,
- void (*decode)(const struct dmi_header *))
+ void (*decode)(const struct dmi_header *, void *),
+ void *private_data)
{
u8 *data = buf;
int i = 0;
while ((data - buf < len - 1) && (data[0] || data[1]))
data++;
if (data - buf < len - 1)
- decode(dm);
+ decode(dm, private_data);
data += 2;
i++;
}
static u16 dmi_len;
static u16 dmi_num;
-static int __init dmi_walk_early(void (*decode)(const struct dmi_header *))
+static int __init dmi_walk_early(void (*decode)(const struct dmi_header *,
+ void *))
{
u8 *buf;
if (buf == NULL)
return -1;
- dmi_table(buf, dmi_len, dmi_num, decode);
+ dmi_table(buf, dmi_len, dmi_num, decode, NULL);
dmi_iounmap(buf, dmi_len);
return 0;
* and machine entries. For 2.5 we should pull the smbus controller info
* out of here.
*/
-static void __init dmi_decode(const struct dmi_header *dm)
+static void __init dmi_decode(const struct dmi_header *dm, void *dummy)
{
switch(dm->type) {
case 0: /* BIOS Information */
/**
* dmi_walk - Walk the DMI table and get called back for every record
* @decode: Callback function
+ * @private_data: Private data to be passed to the callback function
*
* Returns -1 when the DMI table can't be reached, 0 on success.
*/
-int dmi_walk(void (*decode)(const struct dmi_header *))
+int dmi_walk(void (*decode)(const struct dmi_header *, void *),
+ void *private_data)
{
u8 *buf;
if (buf == NULL)
return -1;
- dmi_table(buf, dmi_len, dmi_num, decode);
+ dmi_table(buf, dmi_len, dmi_num, decode, private_data);
iounmap(buf);
return 0;
will be called fscpos.
config SENSORS_FSCHMD
- tristate "FSC Poseidon, Scylla, Hermes, Heimdall and Heracles"
+ tristate "Fujitsu Siemens Computers sensor chips"
depends on X86 && I2C
help
- If you say yes here you get support for various Fujitsu Siemens
- Computers sensor chips, including support for the integrated
- watchdog.
+ If you say yes here you get support for the following Fujitsu
+ Siemens Computers (FSC) sensor chips: Poseidon, Scylla, Hermes,
+ Heimdall, Heracles, Hades and Syleus including support for the
+ integrated watchdog.
This is a merged driver for FSC sensor chips replacing the fscpos,
fscscy and fscher drivers and adding support for several other FSC
This driver can also be built as a module. If so, the module
will be called pc87427.
+config SENSORS_PCF8591
+ tristate "Philips PCF8591 ADC/DAC"
+ depends on I2C
+ default n
+ help
+ If you say yes here you get support for Philips PCF8591 4-channel
+ ADC, 1-channel DAC chips.
+
+ This driver can also be built as a module. If so, the module
+ will be called pcf8591.
+
+ These devices are hard to detect and rarely found on mainstream
+ hardware. If unsure, say N.
+
config SENSORS_SIS5595
tristate "Silicon Integrated Systems Corp. SiS5595"
depends on PCI
will be called w83627hf.
config SENSORS_W83627EHF
- tristate "Winbond W83627EHF/DHG"
+ tristate "Winbond W83627EHF/EHG/DHG, W83667HG"
select HWMON_VID
help
If you say yes here you get support for the hardware
chip suited for specific Intel processors that use PECI such as
the Core 2 Duo.
+ This driver also supports the W83667HG chip.
+
This driver can also be built as a module. If so, the module
will be called w83627ehf.
obj-$(CONFIG_SENSORS_MAX6650) += max6650.o
obj-$(CONFIG_SENSORS_PC87360) += pc87360.o
obj-$(CONFIG_SENSORS_PC87427) += pc87427.o
+obj-$(CONFIG_SENSORS_PCF8591) += pcf8591.o
obj-$(CONFIG_SENSORS_SIS5595) += sis5595.o
obj-$(CONFIG_SENSORS_SMSC47B397)+= smsc47b397.o
obj-$(CONFIG_SENSORS_SMSC47M1) += smsc47m1.o
u8 conf; /* Register encoding, combined */
};
-static int ds1621_probe(struct i2c_client *client,
- const struct i2c_device_id *id);
-static int ds1621_detect(struct i2c_client *client, int kind,
- struct i2c_board_info *info);
-static void ds1621_init_client(struct i2c_client *client);
-static int ds1621_remove(struct i2c_client *client);
-static struct ds1621_data *ds1621_update_client(struct device *dev);
-
-static const struct i2c_device_id ds1621_id[] = {
- { "ds1621", ds1621 },
- { "ds1625", ds1621 },
- { }
-};
-MODULE_DEVICE_TABLE(i2c, ds1621_id);
-
-/* This is the driver that will be inserted */
-static struct i2c_driver ds1621_driver = {
- .class = I2C_CLASS_HWMON,
- .driver = {
- .name = "ds1621",
- },
- .probe = ds1621_probe,
- .remove = ds1621_remove,
- .id_table = ds1621_id,
- .detect = ds1621_detect,
- .address_data = &addr_data,
-};
-
-/* All registers are word-sized, except for the configuration register.
+/* Temperature registers are word-sized.
DS1621 uses a high-byte first convention, which is exactly opposite to
the SMBus standard. */
-static int ds1621_read_value(struct i2c_client *client, u8 reg)
+static int ds1621_read_temp(struct i2c_client *client, u8 reg)
{
- if (reg == DS1621_REG_CONF)
- return i2c_smbus_read_byte_data(client, reg);
- else
- return swab16(i2c_smbus_read_word_data(client, reg));
+ int ret;
+
+ ret = i2c_smbus_read_word_data(client, reg);
+ if (ret < 0)
+ return ret;
+ return swab16(ret);
}
-static int ds1621_write_value(struct i2c_client *client, u8 reg, u16 value)
+static int ds1621_write_temp(struct i2c_client *client, u8 reg, u16 value)
{
- if (reg == DS1621_REG_CONF)
- return i2c_smbus_write_byte_data(client, reg, value);
- else
- return i2c_smbus_write_word_data(client, reg, swab16(value));
+ return i2c_smbus_write_word_data(client, reg, swab16(value));
}
static void ds1621_init_client(struct i2c_client *client)
{
- int reg = ds1621_read_value(client, DS1621_REG_CONF);
+ u8 conf, new_conf;
+
+ new_conf = conf = i2c_smbus_read_byte_data(client, DS1621_REG_CONF);
/* switch to continuous conversion mode */
- reg &= ~ DS1621_REG_CONFIG_1SHOT;
+ new_conf &= ~DS1621_REG_CONFIG_1SHOT;
/* setup output polarity */
if (polarity == 0)
- reg &= ~DS1621_REG_CONFIG_POLARITY;
+ new_conf &= ~DS1621_REG_CONFIG_POLARITY;
else if (polarity == 1)
- reg |= DS1621_REG_CONFIG_POLARITY;
+ new_conf |= DS1621_REG_CONFIG_POLARITY;
- ds1621_write_value(client, DS1621_REG_CONF, reg);
+ if (conf != new_conf)
+ i2c_smbus_write_byte_data(client, DS1621_REG_CONF, new_conf);
/* start conversion */
i2c_smbus_write_byte(client, DS1621_COM_START);
}
+static struct ds1621_data *ds1621_update_client(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct ds1621_data *data = i2c_get_clientdata(client);
+ u8 new_conf;
+
+ mutex_lock(&data->update_lock);
+
+ if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+ || !data->valid) {
+ int i;
+
+ dev_dbg(&client->dev, "Starting ds1621 update\n");
+
+ data->conf = i2c_smbus_read_byte_data(client, DS1621_REG_CONF);
+
+ for (i = 0; i < ARRAY_SIZE(data->temp); i++)
+ data->temp[i] = ds1621_read_temp(client,
+ DS1621_REG_TEMP[i]);
+
+ /* reset alarms if necessary */
+ new_conf = data->conf;
+ if (data->temp[0] > data->temp[1]) /* input > min */
+ new_conf &= ~DS1621_ALARM_TEMP_LOW;
+ if (data->temp[0] < data->temp[2]) /* input < max */
+ new_conf &= ~DS1621_ALARM_TEMP_HIGH;
+ if (data->conf != new_conf)
+ i2c_smbus_write_byte_data(client, DS1621_REG_CONF,
+ new_conf);
+
+ data->last_updated = jiffies;
+ data->valid = 1;
+ }
+
+ mutex_unlock(&data->update_lock);
+
+ return data;
+}
+
static ssize_t show_temp(struct device *dev, struct device_attribute *da,
char *buf)
{
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
struct i2c_client *client = to_i2c_client(dev);
- struct ds1621_data *data = ds1621_update_client(dev);
+ struct ds1621_data *data = i2c_get_clientdata(client);
u16 val = LM75_TEMP_TO_REG(simple_strtol(buf, NULL, 10));
mutex_lock(&data->update_lock);
data->temp[attr->index] = val;
- ds1621_write_value(client, DS1621_REG_TEMP[attr->index],
- data->temp[attr->index]);
+ ds1621_write_temp(client, DS1621_REG_TEMP[attr->index],
+ data->temp[attr->index]);
mutex_unlock(&data->update_lock);
return count;
}
/* The NVB bit should be low if no EEPROM write has been
requested during the latest 10ms, which is highly
improbable in our case. */
- conf = ds1621_read_value(client, DS1621_REG_CONF);
- if (conf & DS1621_REG_CONFIG_NVB)
+ conf = i2c_smbus_read_byte_data(client, DS1621_REG_CONF);
+ if (conf < 0 || conf & DS1621_REG_CONFIG_NVB)
return -ENODEV;
/* The 7 lowest bits of a temperature should always be 0. */
for (i = 0; i < ARRAY_SIZE(DS1621_REG_TEMP); i++) {
- temp = ds1621_read_value(client, DS1621_REG_TEMP[i]);
- if (temp & 0x007f)
+ temp = i2c_smbus_read_word_data(client,
+ DS1621_REG_TEMP[i]);
+ if (temp < 0 || (temp & 0x7f00))
return -ENODEV;
}
}
return 0;
}
+static const struct i2c_device_id ds1621_id[] = {
+ { "ds1621", ds1621 },
+ { "ds1625", ds1621 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, ds1621_id);
-static struct ds1621_data *ds1621_update_client(struct device *dev)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct ds1621_data *data = i2c_get_clientdata(client);
- u8 new_conf;
-
- mutex_lock(&data->update_lock);
-
- if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
- || !data->valid) {
- int i;
-
- dev_dbg(&client->dev, "Starting ds1621 update\n");
-
- data->conf = ds1621_read_value(client, DS1621_REG_CONF);
-
- for (i = 0; i < ARRAY_SIZE(data->temp); i++)
- data->temp[i] = ds1621_read_value(client,
- DS1621_REG_TEMP[i]);
-
- /* reset alarms if necessary */
- new_conf = data->conf;
- if (data->temp[0] > data->temp[1]) /* input > min */
- new_conf &= ~DS1621_ALARM_TEMP_LOW;
- if (data->temp[0] < data->temp[2]) /* input < max */
- new_conf &= ~DS1621_ALARM_TEMP_HIGH;
- if (data->conf != new_conf)
- ds1621_write_value(client, DS1621_REG_CONF,
- new_conf);
-
- data->last_updated = jiffies;
- data->valid = 1;
- }
-
- mutex_unlock(&data->update_lock);
-
- return data;
-}
+/* This is the driver that will be inserted */
+static struct i2c_driver ds1621_driver = {
+ .class = I2C_CLASS_HWMON,
+ .driver = {
+ .name = "ds1621",
+ },
+ .probe = ds1621_probe,
+ .remove = ds1621_remove,
+ .id_table = ds1621_id,
+ .detect = ds1621_detect,
+ .address_data = &addr_data,
+};
static int __init ds1621_init(void)
{
/* fschmd.c
*
- * Copyright (C) 2007,2008 Hans de Goede <hdegoede@redhat.com>
+ * Copyright (C) 2007 - 2009 Hans de Goede <hdegoede@redhat.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
/*
* Merged Fujitsu Siemens hwmon driver, supporting the Poseidon, Hermes,
- * Scylla, Heracles and Heimdall chips
+ * Scylla, Heracles, Heimdall, Hades and Syleus chips
*
* Based on the original 2.4 fscscy, 2.6 fscpos, 2.6 fscher and 2.6
* (candidate) fschmd drivers:
module_param(nowayout, int, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
-I2C_CLIENT_INSMOD_5(fscpos, fscher, fscscy, fschrc, fschmd);
+I2C_CLIENT_INSMOD_7(fscpos, fscher, fscscy, fschrc, fschmd, fschds, fscsyl);
/*
* The FSCHMD registers and other defines
#define FSCHMD_CONTROL_ALERT_LED 0x01
/* watchdog */
-#define FSCHMD_REG_WDOG_PRESET 0x28
-#define FSCHMD_REG_WDOG_STATE 0x23
-#define FSCHMD_REG_WDOG_CONTROL 0x21
+static const u8 FSCHMD_REG_WDOG_CONTROL[7] =
+ { 0x21, 0x21, 0x21, 0x21, 0x21, 0x28, 0x28 };
+static const u8 FSCHMD_REG_WDOG_STATE[7] =
+ { 0x23, 0x23, 0x23, 0x23, 0x23, 0x29, 0x29 };
+static const u8 FSCHMD_REG_WDOG_PRESET[7] =
+ { 0x28, 0x28, 0x28, 0x28, 0x28, 0x2a, 0x2a };
#define FSCHMD_WDOG_CONTROL_TRIGGER 0x10
#define FSCHMD_WDOG_CONTROL_STARTED 0x10 /* the same as trigger */
#define FSCHMD_WDOG_STATE_CARDRESET 0x02
/* voltages, weird order is to keep the same order as the old drivers */
-static const u8 FSCHMD_REG_VOLT[3] = { 0x45, 0x42, 0x48 };
+static const u8 FSCHMD_REG_VOLT[7][6] = {
+ { 0x45, 0x42, 0x48 }, /* pos */
+ { 0x45, 0x42, 0x48 }, /* her */
+ { 0x45, 0x42, 0x48 }, /* scy */
+ { 0x45, 0x42, 0x48 }, /* hrc */
+ { 0x45, 0x42, 0x48 }, /* hmd */
+ { 0x21, 0x20, 0x22 }, /* hds */
+ { 0x21, 0x20, 0x22, 0x23, 0x24, 0x25 }, /* syl */
+};
+
+static const int FSCHMD_NO_VOLT_SENSORS[7] = { 3, 3, 3, 3, 3, 3, 6 };
/* minimum pwm at which the fan is driven (pwm can by increased depending on
the temp. Notice that for the scy some fans share there minimum speed.
Also notice that with the scy the sensor order is different than with the
other chips, this order was in the 2.4 driver and kept for consistency. */
-static const u8 FSCHMD_REG_FAN_MIN[5][6] = {
+static const u8 FSCHMD_REG_FAN_MIN[7][7] = {
{ 0x55, 0x65 }, /* pos */
{ 0x55, 0x65, 0xb5 }, /* her */
{ 0x65, 0x65, 0x55, 0xa5, 0x55, 0xa5 }, /* scy */
{ 0x55, 0x65, 0xa5, 0xb5 }, /* hrc */
{ 0x55, 0x65, 0xa5, 0xb5, 0xc5 }, /* hmd */
+ { 0x55, 0x65, 0xa5, 0xb5, 0xc5 }, /* hds */
+ { 0x54, 0x64, 0x74, 0x84, 0x94, 0xa4, 0xb4 }, /* syl */
};
/* actual fan speed */
-static const u8 FSCHMD_REG_FAN_ACT[5][6] = {
+static const u8 FSCHMD_REG_FAN_ACT[7][7] = {
{ 0x0e, 0x6b, 0xab }, /* pos */
{ 0x0e, 0x6b, 0xbb }, /* her */
{ 0x6b, 0x6c, 0x0e, 0xab, 0x5c, 0xbb }, /* scy */
{ 0x0e, 0x6b, 0xab, 0xbb }, /* hrc */
{ 0x5b, 0x6b, 0xab, 0xbb, 0xcb }, /* hmd */
+ { 0x5b, 0x6b, 0xab, 0xbb, 0xcb }, /* hds */
+ { 0x57, 0x67, 0x77, 0x87, 0x97, 0xa7, 0xb7 }, /* syl */
};
/* fan status registers */
-static const u8 FSCHMD_REG_FAN_STATE[5][6] = {
+static const u8 FSCHMD_REG_FAN_STATE[7][7] = {
{ 0x0d, 0x62, 0xa2 }, /* pos */
{ 0x0d, 0x62, 0xb2 }, /* her */
{ 0x62, 0x61, 0x0d, 0xa2, 0x52, 0xb2 }, /* scy */
{ 0x0d, 0x62, 0xa2, 0xb2 }, /* hrc */
{ 0x52, 0x62, 0xa2, 0xb2, 0xc2 }, /* hmd */
+ { 0x52, 0x62, 0xa2, 0xb2, 0xc2 }, /* hds */
+ { 0x50, 0x60, 0x70, 0x80, 0x90, 0xa0, 0xb0 }, /* syl */
};
/* fan ripple / divider registers */
-static const u8 FSCHMD_REG_FAN_RIPPLE[5][6] = {
+static const u8 FSCHMD_REG_FAN_RIPPLE[7][7] = {
{ 0x0f, 0x6f, 0xaf }, /* pos */
{ 0x0f, 0x6f, 0xbf }, /* her */
{ 0x6f, 0x6f, 0x0f, 0xaf, 0x0f, 0xbf }, /* scy */
{ 0x0f, 0x6f, 0xaf, 0xbf }, /* hrc */
{ 0x5f, 0x6f, 0xaf, 0xbf, 0xcf }, /* hmd */
+ { 0x5f, 0x6f, 0xaf, 0xbf, 0xcf }, /* hds */
+ { 0x56, 0x66, 0x76, 0x86, 0x96, 0xa6, 0xb6 }, /* syl */
};
-static const int FSCHMD_NO_FAN_SENSORS[5] = { 3, 3, 6, 4, 5 };
+static const int FSCHMD_NO_FAN_SENSORS[7] = { 3, 3, 6, 4, 5, 5, 7 };
/* Fan status register bitmasks */
#define FSCHMD_FAN_ALARM 0x04 /* called fault by FSC! */
-#define FSCHMD_FAN_NOT_PRESENT 0x08 /* not documented */
+#define FSCHMD_FAN_NOT_PRESENT 0x08
+#define FSCHMD_FAN_DISABLED 0x80
/* actual temperature registers */
-static const u8 FSCHMD_REG_TEMP_ACT[5][5] = {
+static const u8 FSCHMD_REG_TEMP_ACT[7][11] = {
{ 0x64, 0x32, 0x35 }, /* pos */
{ 0x64, 0x32, 0x35 }, /* her */
{ 0x64, 0xD0, 0x32, 0x35 }, /* scy */
{ 0x64, 0x32, 0x35 }, /* hrc */
{ 0x70, 0x80, 0x90, 0xd0, 0xe0 }, /* hmd */
+ { 0x70, 0x80, 0x90, 0xd0, 0xe0 }, /* hds */
+ { 0x58, 0x68, 0x78, 0x88, 0x98, 0xa8, /* syl */
+ 0xb8, 0xc8, 0xd8, 0xe8, 0xf8 },
};
/* temperature state registers */
-static const u8 FSCHMD_REG_TEMP_STATE[5][5] = {
+static const u8 FSCHMD_REG_TEMP_STATE[7][11] = {
{ 0x71, 0x81, 0x91 }, /* pos */
{ 0x71, 0x81, 0x91 }, /* her */
{ 0x71, 0xd1, 0x81, 0x91 }, /* scy */
{ 0x71, 0x81, 0x91 }, /* hrc */
{ 0x71, 0x81, 0x91, 0xd1, 0xe1 }, /* hmd */
+ { 0x71, 0x81, 0x91, 0xd1, 0xe1 }, /* hds */
+ { 0x59, 0x69, 0x79, 0x89, 0x99, 0xa9, /* syl */
+ 0xb9, 0xc9, 0xd9, 0xe9, 0xf9 },
};
/* temperature high limit registers, FSC does not document these. Proven to be
in the fscscy 2.4 driver. FSC has confirmed that the fschmd has registers
at these addresses, but doesn't want to confirm they are the same as with
the fscher?? */
-static const u8 FSCHMD_REG_TEMP_LIMIT[5][5] = {
+static const u8 FSCHMD_REG_TEMP_LIMIT[7][11] = {
{ 0, 0, 0 }, /* pos */
{ 0x76, 0x86, 0x96 }, /* her */
{ 0x76, 0xd6, 0x86, 0x96 }, /* scy */
{ 0x76, 0x86, 0x96 }, /* hrc */
{ 0x76, 0x86, 0x96, 0xd6, 0xe6 }, /* hmd */
+ { 0x76, 0x86, 0x96, 0xd6, 0xe6 }, /* hds */
+ { 0x5a, 0x6a, 0x7a, 0x8a, 0x9a, 0xaa, /* syl */
+ 0xba, 0xca, 0xda, 0xea, 0xfa },
};
/* These were found through experimenting with an fscher, currently they are
not used, but we keep them around for future reference.
+ On the fscsyl AUTOP1 lives at 0x#c (so 0x5c for fan1, 0x6c for fan2, etc),
+ AUTOP2 lives at 0x#e, and 0x#1 is a bitmask defining which temps influence
+ the fan speed.
static const u8 FSCHER_REG_TEMP_AUTOP1[] = { 0x73, 0x83, 0x93 };
static const u8 FSCHER_REG_TEMP_AUTOP2[] = { 0x75, 0x85, 0x95 }; */
-static const int FSCHMD_NO_TEMP_SENSORS[5] = { 3, 3, 4, 3, 5 };
+static const int FSCHMD_NO_TEMP_SENSORS[7] = { 3, 3, 4, 3, 5, 5, 11 };
/* temp status register bitmasks */
#define FSCHMD_TEMP_WORKING 0x01
#define FSCHMD_TEMP_ALERT 0x02
+#define FSCHMD_TEMP_DISABLED 0x80
/* there only really is an alarm if the sensor is working and alert == 1 */
#define FSCHMD_TEMP_ALARM_MASK \
(FSCHMD_TEMP_WORKING | FSCHMD_TEMP_ALERT)
{ "fscscy", fscscy },
{ "fschrc", fschrc },
{ "fschmd", fschmd },
+ { "fschds", fschds },
+ { "fscsyl", fscsyl },
{ }
};
MODULE_DEVICE_TABLE(i2c, fschmd_id);
u8 watchdog_control; /* watchdog control register */
u8 watchdog_state; /* watchdog status register */
u8 watchdog_preset; /* watchdog counter preset on trigger val */
- u8 volt[3]; /* 12, 5, battery voltage */
- u8 temp_act[5]; /* temperature */
- u8 temp_status[5]; /* status of sensor */
- u8 temp_max[5]; /* high temp limit, notice: undocumented! */
- u8 fan_act[6]; /* fans revolutions per second */
- u8 fan_status[6]; /* fan status */
- u8 fan_min[6]; /* fan min value for rps */
- u8 fan_ripple[6]; /* divider for rps */
+ u8 volt[6]; /* voltage */
+ u8 temp_act[11]; /* temperature */
+ u8 temp_status[11]; /* status of sensor */
+ u8 temp_max[11]; /* high temp limit, notice: undocumented! */
+ u8 fan_act[7]; /* fans revolutions per second */
+ u8 fan_status[7]; /* fan status */
+ u8 fan_min[7]; /* fan min value for rps */
+ u8 fan_ripple[7]; /* divider for rps */
};
/* Global variables to hold information read from special DMI tables, which are
protect these with a lock as they are only modified from our attach function
which always gets called with the i2c-core lock held and never accessed
before the attach function is done with them. */
-static int dmi_mult[3] = { 490, 200, 100 };
-static int dmi_offset[3] = { 0, 0, 0 };
+static int dmi_mult[6] = { 490, 200, 100, 100, 200, 100 };
+static int dmi_offset[6] = { 0, 0, 0, 0, 0, 0 };
static int dmi_vref = -1;
/* Somewhat ugly :( global data pointer list with all fschmd devices, so that
struct device_attribute *devattr, char *buf)
{
int index = to_sensor_dev_attr(devattr)->index;
- int val = fschmd_update_device(dev)->fan_min[index];
+ struct fschmd_data *data = fschmd_update_device(dev);
+ int val = data->fan_min[index];
- /* 0 = allow turning off, 1-255 = 50-100% */
- if (val)
+ /* 0 = allow turning off (except on the syl), 1-255 = 50-100% */
+ if (val || data->kind == fscsyl - 1)
val = val / 2 + 128;
return sprintf(buf, "%d\n", val);
struct fschmd_data *data = dev_get_drvdata(dev);
unsigned long v = simple_strtoul(buf, NULL, 10);
- /* register: 0 = allow turning off, 1-255 = 50-100% */
- if (v) {
+ /* reg: 0 = allow turning off (except on the syl), 1-255 = 50-100% */
+ if (v || data->kind == fscsyl - 1) {
v = SENSORS_LIMIT(v, 128, 255);
v = (v - 128) * 2 + 1;
}
return count;
}
+static DEVICE_ATTR(alert_led, 0644, show_alert_led, store_alert_led);
+
static struct sensor_device_attribute fschmd_attr[] = {
SENSOR_ATTR(in0_input, 0444, show_in_value, NULL, 0),
SENSOR_ATTR(in1_input, 0444, show_in_value, NULL, 1),
SENSOR_ATTR(in2_input, 0444, show_in_value, NULL, 2),
- SENSOR_ATTR(alert_led, 0644, show_alert_led, store_alert_led, 0),
+ SENSOR_ATTR(in3_input, 0444, show_in_value, NULL, 3),
+ SENSOR_ATTR(in4_input, 0444, show_in_value, NULL, 4),
+ SENSOR_ATTR(in5_input, 0444, show_in_value, NULL, 5),
};
static struct sensor_device_attribute fschmd_temp_attr[] = {
SENSOR_ATTR(temp5_max, 0644, show_temp_max, store_temp_max, 4),
SENSOR_ATTR(temp5_fault, 0444, show_temp_fault, NULL, 4),
SENSOR_ATTR(temp5_alarm, 0444, show_temp_alarm, NULL, 4),
+ SENSOR_ATTR(temp6_input, 0444, show_temp_value, NULL, 5),
+ SENSOR_ATTR(temp6_max, 0644, show_temp_max, store_temp_max, 5),
+ SENSOR_ATTR(temp6_fault, 0444, show_temp_fault, NULL, 5),
+ SENSOR_ATTR(temp6_alarm, 0444, show_temp_alarm, NULL, 5),
+ SENSOR_ATTR(temp7_input, 0444, show_temp_value, NULL, 6),
+ SENSOR_ATTR(temp7_max, 0644, show_temp_max, store_temp_max, 6),
+ SENSOR_ATTR(temp7_fault, 0444, show_temp_fault, NULL, 6),
+ SENSOR_ATTR(temp7_alarm, 0444, show_temp_alarm, NULL, 6),
+ SENSOR_ATTR(temp8_input, 0444, show_temp_value, NULL, 7),
+ SENSOR_ATTR(temp8_max, 0644, show_temp_max, store_temp_max, 7),
+ SENSOR_ATTR(temp8_fault, 0444, show_temp_fault, NULL, 7),
+ SENSOR_ATTR(temp8_alarm, 0444, show_temp_alarm, NULL, 7),
+ SENSOR_ATTR(temp9_input, 0444, show_temp_value, NULL, 8),
+ SENSOR_ATTR(temp9_max, 0644, show_temp_max, store_temp_max, 8),
+ SENSOR_ATTR(temp9_fault, 0444, show_temp_fault, NULL, 8),
+ SENSOR_ATTR(temp9_alarm, 0444, show_temp_alarm, NULL, 8),
+ SENSOR_ATTR(temp10_input, 0444, show_temp_value, NULL, 9),
+ SENSOR_ATTR(temp10_max, 0644, show_temp_max, store_temp_max, 9),
+ SENSOR_ATTR(temp10_fault, 0444, show_temp_fault, NULL, 9),
+ SENSOR_ATTR(temp10_alarm, 0444, show_temp_alarm, NULL, 9),
+ SENSOR_ATTR(temp11_input, 0444, show_temp_value, NULL, 10),
+ SENSOR_ATTR(temp11_max, 0644, show_temp_max, store_temp_max, 10),
+ SENSOR_ATTR(temp11_fault, 0444, show_temp_fault, NULL, 10),
+ SENSOR_ATTR(temp11_alarm, 0444, show_temp_alarm, NULL, 10),
};
static struct sensor_device_attribute fschmd_fan_attr[] = {
SENSOR_ATTR(fan6_fault, 0444, show_fan_fault, NULL, 5),
SENSOR_ATTR(pwm6_auto_point1_pwm, 0644, show_pwm_auto_point1_pwm,
store_pwm_auto_point1_pwm, 5),
+ SENSOR_ATTR(fan7_input, 0444, show_fan_value, NULL, 6),
+ SENSOR_ATTR(fan7_div, 0644, show_fan_div, store_fan_div, 6),
+ SENSOR_ATTR(fan7_alarm, 0444, show_fan_alarm, NULL, 6),
+ SENSOR_ATTR(fan7_fault, 0444, show_fan_fault, NULL, 6),
+ SENSOR_ATTR(pwm7_auto_point1_pwm, 0644, show_pwm_auto_point1_pwm,
+ store_pwm_auto_point1_pwm, 6),
};
data->watchdog_preset = DIV_ROUND_UP(timeout, resolution);
/* Write new timeout value */
- i2c_smbus_write_byte_data(data->client, FSCHMD_REG_WDOG_PRESET,
- data->watchdog_preset);
+ i2c_smbus_write_byte_data(data->client,
+ FSCHMD_REG_WDOG_PRESET[data->kind], data->watchdog_preset);
/* Write new control register, do not trigger! */
- i2c_smbus_write_byte_data(data->client, FSCHMD_REG_WDOG_CONTROL,
+ i2c_smbus_write_byte_data(data->client,
+ FSCHMD_REG_WDOG_CONTROL[data->kind],
data->watchdog_control & ~FSCHMD_WDOG_CONTROL_TRIGGER);
ret = data->watchdog_preset * resolution;
}
data->watchdog_control |= FSCHMD_WDOG_CONTROL_TRIGGER;
- i2c_smbus_write_byte_data(data->client, FSCHMD_REG_WDOG_CONTROL,
- data->watchdog_control);
+ i2c_smbus_write_byte_data(data->client,
+ FSCHMD_REG_WDOG_CONTROL[data->kind],
+ data->watchdog_control);
leave:
mutex_unlock(&data->watchdog_lock);
return ret;
data->watchdog_control &= ~FSCHMD_WDOG_CONTROL_STARTED;
/* Don't store the stop flag in our watchdog control register copy, as
its a write only bit (read always returns 0) */
- i2c_smbus_write_byte_data(data->client, FSCHMD_REG_WDOG_CONTROL,
+ i2c_smbus_write_byte_data(data->client,
+ FSCHMD_REG_WDOG_CONTROL[data->kind],
data->watchdog_control | FSCHMD_WDOG_CONTROL_STOP);
leave:
mutex_unlock(&data->watchdog_lock);
/* DMI decode routine to read voltage scaling factors from special DMI tables,
which are available on FSC machines with an fscher or later chip. */
-static void fschmd_dmi_decode(const struct dmi_header *header)
+static void fschmd_dmi_decode(const struct dmi_header *header, void *dummy)
{
int i, mult[3] = { 0 }, offset[3] = { 0 }, vref = 0, found = 0;
dmi_mult[i] = mult[i] * 10;
dmi_offset[i] = offset[i] * 10;
}
+ /* According to the docs there should be separate dmi entries
+ for the mult's and offsets of in3-5 of the syl, but on
+ my test machine these are not present */
+ dmi_mult[3] = dmi_mult[2];
+ dmi_mult[4] = dmi_mult[1];
+ dmi_mult[5] = dmi_mult[2];
+ dmi_offset[3] = dmi_offset[2];
+ dmi_offset[4] = dmi_offset[1];
+ dmi_offset[5] = dmi_offset[2];
dmi_vref = vref;
}
}
struct i2c_board_info *info)
{
struct i2c_adapter *adapter = client->adapter;
- const char * const client_names[5] = { "fscpos", "fscher", "fscscy",
- "fschrc", "fschmd" };
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
return -ENODEV;
kind = fschrc;
else if (!strcmp(id, "HMD"))
kind = fschmd;
+ else if (!strcmp(id, "HDS"))
+ kind = fschds;
+ else if (!strcmp(id, "SYL"))
+ kind = fscsyl;
else
return -ENODEV;
}
- strlcpy(info->type, client_names[kind - 1], I2C_NAME_SIZE);
+ strlcpy(info->type, fschmd_id[kind - 1].name, I2C_NAME_SIZE);
return 0;
}
const struct i2c_device_id *id)
{
struct fschmd_data *data;
- const char * const names[5] = { "Poseidon", "Hermes", "Scylla",
- "Heracles", "Heimdall" };
+ const char * const names[7] = { "Poseidon", "Hermes", "Scylla",
+ "Heracles", "Heimdall", "Hades", "Syleus" };
const int watchdog_minors[] = { WATCHDOG_MINOR, 212, 213, 214, 215 };
int i, err;
enum chips kind = id->driver_data;
/* Read the special DMI table for fscher and newer chips */
if ((kind == fscher || kind >= fschrc) && dmi_vref == -1) {
- dmi_walk(fschmd_dmi_decode);
+ dmi_walk(fschmd_dmi_decode, NULL);
if (dmi_vref == -1) {
dev_warn(&client->dev,
"Couldn't get voltage scaling factors from "
}
}
+ /* i2c kind goes from 1-6, we want from 0-5 to address arrays */
+ data->kind = kind - 1;
+
/* Read in some never changing registers */
data->revision = i2c_smbus_read_byte_data(client, FSCHMD_REG_REVISION);
data->global_control = i2c_smbus_read_byte_data(client,
FSCHMD_REG_CONTROL);
data->watchdog_control = i2c_smbus_read_byte_data(client,
- FSCHMD_REG_WDOG_CONTROL);
+ FSCHMD_REG_WDOG_CONTROL[data->kind]);
data->watchdog_state = i2c_smbus_read_byte_data(client,
- FSCHMD_REG_WDOG_STATE);
+ FSCHMD_REG_WDOG_STATE[data->kind]);
data->watchdog_preset = i2c_smbus_read_byte_data(client,
- FSCHMD_REG_WDOG_PRESET);
+ FSCHMD_REG_WDOG_PRESET[data->kind]);
- /* i2c kind goes from 1-5, we want from 0-4 to address arrays */
- data->kind = kind - 1;
+ err = device_create_file(&client->dev, &dev_attr_alert_led);
+ if (err)
+ goto exit_detach;
- for (i = 0; i < ARRAY_SIZE(fschmd_attr); i++) {
+ for (i = 0; i < FSCHMD_NO_VOLT_SENSORS[data->kind]; i++) {
err = device_create_file(&client->dev,
&fschmd_attr[i].dev_attr);
if (err)
show_temp_max)
continue;
+ if (kind == fscsyl) {
+ if (i % 4 == 0)
+ data->temp_status[i / 4] =
+ i2c_smbus_read_byte_data(client,
+ FSCHMD_REG_TEMP_STATE
+ [data->kind][i / 4]);
+ if (data->temp_status[i / 4] & FSCHMD_TEMP_DISABLED)
+ continue;
+ }
+
err = device_create_file(&client->dev,
&fschmd_temp_attr[i].dev_attr);
if (err)
"pwm3_auto_point1_pwm"))
continue;
+ if (kind == fscsyl) {
+ if (i % 5 == 0)
+ data->fan_status[i / 5] =
+ i2c_smbus_read_byte_data(client,
+ FSCHMD_REG_FAN_STATE
+ [data->kind][i / 5]);
+ if (data->fan_status[i / 5] & FSCHMD_FAN_DISABLED)
+ continue;
+ }
+
err = device_create_file(&client->dev,
&fschmd_fan_attr[i].dev_attr);
if (err)
if (data->hwmon_dev)
hwmon_device_unregister(data->hwmon_dev);
- for (i = 0; i < ARRAY_SIZE(fschmd_attr); i++)
+ device_remove_file(&client->dev, &dev_attr_alert_led);
+ for (i = 0; i < (FSCHMD_NO_VOLT_SENSORS[data->kind]); i++)
device_remove_file(&client->dev, &fschmd_attr[i].dev_attr);
for (i = 0; i < (FSCHMD_NO_TEMP_SENSORS[data->kind] * 4); i++)
device_remove_file(&client->dev,
data->temp_act[i] < data->temp_max[i])
i2c_smbus_write_byte_data(client,
FSCHMD_REG_TEMP_STATE[data->kind][i],
- FSCHMD_TEMP_ALERT);
+ data->temp_status[i]);
}
for (i = 0; i < FSCHMD_NO_FAN_SENSORS[data->kind]; i++) {
data->fan_act[i])
i2c_smbus_write_byte_data(client,
FSCHMD_REG_FAN_STATE[data->kind][i],
- FSCHMD_FAN_ALARM);
+ data->fan_status[i]);
}
- for (i = 0; i < 3; i++)
+ for (i = 0; i < FSCHMD_NO_VOLT_SENSORS[data->kind]; i++)
data->volt[i] = i2c_smbus_read_byte_data(client,
- FSCHMD_REG_VOLT[i]);
+ FSCHMD_REG_VOLT[data->kind][i]);
data->last_updated = jiffies;
data->valid = 1;
}
MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
-MODULE_DESCRIPTION("FSC Poseidon, Hermes, Scylla, Heracles and "
- "Heimdall driver");
+MODULE_DESCRIPTION("FSC Poseidon, Hermes, Scylla, Heracles, Heimdall, Hades "
+ "and Syleus driver");
MODULE_LICENSE("GPL");
module_init(fschmd_init);
#define HDAPS_INPUT_FUZZ 4 /* input event threshold */
#define HDAPS_INPUT_FLAT 4
+#define HDAPS_X_AXIS (1 << 0)
+#define HDAPS_Y_AXIS (1 << 1)
+#define HDAPS_BOTH_AXES (HDAPS_X_AXIS | HDAPS_Y_AXIS)
+
static struct platform_device *pdev;
static struct input_polled_dev *hdaps_idev;
static unsigned int hdaps_invert;
km_activity = inb(HDAPS_PORT_KMACT);
__device_complete();
- /* if hdaps_invert is set, negate the two values */
- if (hdaps_invert) {
+ /* hdaps_invert is a bitvector to negate the axes */
+ if (hdaps_invert & HDAPS_X_AXIS)
*x = -*x;
+ if (hdaps_invert & HDAPS_Y_AXIS)
*y = -*y;
- }
return 0;
}
{
int invert;
- if (sscanf(buf, "%d", &invert) != 1 || (invert != 1 && invert != 0))
+ if (sscanf(buf, "%d", &invert) != 1 ||
+ invert < 0 || invert > HDAPS_BOTH_AXES)
return -EINVAL;
hdaps_invert = invert;
/* hdaps_dmi_match_invert - found an inverted match. */
static int __init hdaps_dmi_match_invert(const struct dmi_system_id *id)
{
- hdaps_invert = 1;
- printk(KERN_INFO "hdaps: inverting axis readings.\n");
+ hdaps_invert = (unsigned long)id->driver_data;
+ printk(KERN_INFO "hdaps: inverting axis (%u) readings.\n",
+ hdaps_invert);
return hdaps_dmi_match(id);
}
-#define HDAPS_DMI_MATCH_NORMAL(vendor, model) { \
- .ident = vendor " " model, \
- .callback = hdaps_dmi_match, \
- .matches = { \
- DMI_MATCH(DMI_BOARD_VENDOR, vendor), \
- DMI_MATCH(DMI_PRODUCT_VERSION, model) \
- } \
-}
-
-#define HDAPS_DMI_MATCH_INVERT(vendor, model) { \
+#define HDAPS_DMI_MATCH_INVERT(vendor, model, axes) { \
.ident = vendor " " model, \
.callback = hdaps_dmi_match_invert, \
+ .driver_data = (void *)axes, \
.matches = { \
DMI_MATCH(DMI_BOARD_VENDOR, vendor), \
DMI_MATCH(DMI_PRODUCT_VERSION, model) \
} \
}
+#define HDAPS_DMI_MATCH_NORMAL(vendor, model) \
+ HDAPS_DMI_MATCH_INVERT(vendor, model, 0)
+
/* Note that HDAPS_DMI_MATCH_NORMAL("ThinkPad T42") would match
"ThinkPad T42p", so the order of the entries matters.
If your ThinkPad is not recognized, please update to latest
BIOS. This is especially the case for some R52 ThinkPads. */
static struct dmi_system_id __initdata hdaps_whitelist[] = {
- HDAPS_DMI_MATCH_INVERT("IBM", "ThinkPad R50p"),
+ HDAPS_DMI_MATCH_INVERT("IBM", "ThinkPad R50p", HDAPS_BOTH_AXES),
HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad R50"),
HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad R51"),
HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad R52"),
- HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad R61i"),
- HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad R61"),
- HDAPS_DMI_MATCH_INVERT("IBM", "ThinkPad T41p"),
+ HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad R61i", HDAPS_BOTH_AXES),
+ HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad R61", HDAPS_BOTH_AXES),
+ HDAPS_DMI_MATCH_INVERT("IBM", "ThinkPad T41p", HDAPS_BOTH_AXES),
HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad T41"),
- HDAPS_DMI_MATCH_INVERT("IBM", "ThinkPad T42p"),
+ HDAPS_DMI_MATCH_INVERT("IBM", "ThinkPad T42p", HDAPS_BOTH_AXES),
HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad T42"),
HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad T43"),
- HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad T60"),
- HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad T61p"),
- HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad T61"),
+ HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad T60", HDAPS_BOTH_AXES),
+ HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad T61p", HDAPS_BOTH_AXES),
+ HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad T61", HDAPS_BOTH_AXES),
HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad X40"),
- HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad X41"),
- HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad X60"),
- HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad X61s"),
- HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad X61"),
+ HDAPS_DMI_MATCH_INVERT("IBM", "ThinkPad X41", HDAPS_Y_AXIS),
+ HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad X60", HDAPS_BOTH_AXES),
+ HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad X61s", HDAPS_BOTH_AXES),
+ HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad X61", HDAPS_BOTH_AXES),
HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad Z60m"),
- HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad Z61m"),
- HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad Z61p"),
+ HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad Z61m", HDAPS_BOTH_AXES),
+ HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad Z61p", HDAPS_BOTH_AXES),
{ .ident = NULL }
};
module_init(hdaps_init);
module_exit(hdaps_exit);
-module_param_named(invert, hdaps_invert, bool, 0);
-MODULE_PARM_DESC(invert, "invert data along each axis");
+module_param_named(invert, hdaps_invert, int, 0);
+MODULE_PARM_DESC(invert, "invert data along each axis. 1 invert x-axis, "
+ "2 invert y-axis, 3 invert both axes.");
MODULE_AUTHOR("Robert Love");
MODULE_DESCRIPTION("IBM Hard Drive Active Protection System (HDAPS) driver");
/*
Copyright (C) 2001-2004 Aurelien Jarno <aurelien@aurel32.net>
- Ported to Linux 2.6 by Aurelien Jarno <aurelien@aurel32.net> with
+ Ported to Linux 2.6 by Aurelien Jarno <aurelien@aurel32.net> with
the help of Jean Delvare <khali@linux-fr.org>
This program is free software; you can redistribute it and/or modify
" 3 = two differential inputs\n");
/* The PCF8591 control byte
- 7 6 5 4 3 2 1 0
+ 7 6 5 4 3 2 1 0
| 0 |AOEF| AIP | 0 |AINC| AICH | */
/* Analog Output Enable Flag (analog output active if 1) */
#define PCF8591_CONTROL_AOEF 0x40
-
-/* Analog Input Programming
+
+/* Analog Input Programming
0x00 = four single ended inputs
0x10 = three differential inputs
0x20 = single ended and differential mixed
#define PCF8591_CONTROL_AINC 0x04
/* Channel selection
- 0x00 = channel 0
+ 0x00 = channel 0
0x01 = channel 1
0x02 = channel 2
0x03 = channel 3 */
return -EINVAL;
}
-static DEVICE_ATTR(out0_output, S_IWUSR | S_IRUGO,
+static DEVICE_ATTR(out0_output, S_IWUSR | S_IRUGO,
show_out0_ouput, set_out0_output);
static ssize_t show_out0_enable(struct device *dev, struct device_attribute *attr, char *buf)
return count;
}
-static DEVICE_ATTR(out0_enable, S_IWUSR | S_IRUGO,
+static DEVICE_ATTR(out0_enable, S_IWUSR | S_IRUGO,
show_out0_enable, set_out0_enable);
static struct attribute *pcf8591_attributes[] = {
err = -ENOMEM;
goto exit;
}
-
+
i2c_set_clientdata(client, data);
mutex_init(&data->update_lock);
data->aout = PCF8591_INIT_AOUT;
i2c_smbus_write_byte_data(client, data->control, data->aout);
-
- /* The first byte transmitted contains the conversion code of the
+
+ /* The first byte transmitted contains the conversion code of the
previous read cycle. FLUSH IT! */
i2c_smbus_read_byte(client);
}
data->control = (data->control & ~PCF8591_CONTROL_AICH_MASK)
| channel;
i2c_smbus_write_byte(client, data->control);
-
- /* The first byte transmitted contains the conversion code of
+
+ /* The first byte transmitted contains the conversion code of
the previous read cycle. FLUSH IT! */
i2c_smbus_read_byte(client);
}
w83627ehf 10 5 4 3 0x8850 0x88 0x5ca3
0x8860 0xa1
w83627dhg 9 5 4 3 0xa020 0xc1 0x5ca3
+ w83667hg 9 5 3 3 0xa510 0xc1 0x5ca3
*/
#include <linux/module.h>
#include <asm/io.h>
#include "lm75.h"
-enum kinds { w83627ehf, w83627dhg };
+enum kinds { w83627ehf, w83627dhg, w83667hg };
/* used to set data->name = w83627ehf_device_names[data->sio_kind] */
static const char * w83627ehf_device_names[] = {
"w83627ehf",
"w83627dhg",
+ "w83667hg",
};
static unsigned short force_id;
*/
#define W83627EHF_LD_HWM 0x0b
+#define W83667HG_LD_VID 0x0d
#define SIO_REG_LDSEL 0x07 /* Logical device select */
#define SIO_REG_DEVID 0x20 /* Device ID (2 bytes) */
#define SIO_W83627EHF_ID 0x8850
#define SIO_W83627EHG_ID 0x8860
#define SIO_W83627DHG_ID 0xa020
+#define SIO_W83667HG_ID 0xa510
#define SIO_ID_MASK 0xFFF0
static inline void
u8 pwm_mode[4]; /* 0->DC variable voltage, 1->PWM variable duty cycle */
u8 pwm_enable[4]; /* 1->manual
2->thermal cruise (also called SmartFan I) */
+ u8 pwm_num; /* number of pwm */
u8 pwm[4];
u8 target_temp[4];
u8 tolerance[4];
u8 vid;
u8 vrm;
+
+ u8 temp3_disable;
+ u8 in6_skip;
};
struct w83627ehf_sio_data {
return sprintf(buf, "%d\n", (int)data->temp_type[nr]);
}
-static struct sensor_device_attribute sda_temp[] = {
+static struct sensor_device_attribute sda_temp_input[] = {
SENSOR_ATTR(temp1_input, S_IRUGO, show_temp1, NULL, 0),
SENSOR_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 0),
SENSOR_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 1),
+};
+
+static struct sensor_device_attribute sda_temp_max[] = {
SENSOR_ATTR(temp1_max, S_IRUGO | S_IWUSR, show_temp1_max,
store_temp1_max, 0),
SENSOR_ATTR(temp2_max, S_IRUGO | S_IWUSR, show_temp_max,
store_temp_max, 0),
SENSOR_ATTR(temp3_max, S_IRUGO | S_IWUSR, show_temp_max,
store_temp_max, 1),
+};
+
+static struct sensor_device_attribute sda_temp_max_hyst[] = {
SENSOR_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR, show_temp1_max_hyst,
store_temp1_max_hyst, 0),
SENSOR_ATTR(temp2_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst,
store_temp_max_hyst, 0),
SENSOR_ATTR(temp3_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst,
store_temp_max_hyst, 1),
+};
+
+static struct sensor_device_attribute sda_temp_alarm[] = {
SENSOR_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4),
SENSOR_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5),
SENSOR_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13),
+};
+
+static struct sensor_device_attribute sda_temp_type[] = {
SENSOR_ATTR(temp1_type, S_IRUGO, show_temp_type, NULL, 0),
SENSOR_ATTR(temp2_type, S_IRUGO, show_temp_type, NULL, 1),
SENSOR_ATTR(temp3_type, S_IRUGO, show_temp_type, NULL, 2),
for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays_fan4); i++)
device_remove_file(dev, &sda_sf3_arrays_fan4[i].dev_attr);
for (i = 0; i < data->in_num; i++) {
+ if ((i == 6) && data->in6_skip)
+ continue;
device_remove_file(dev, &sda_in_input[i].dev_attr);
device_remove_file(dev, &sda_in_alarm[i].dev_attr);
device_remove_file(dev, &sda_in_min[i].dev_attr);
device_remove_file(dev, &sda_fan_div[i].dev_attr);
device_remove_file(dev, &sda_fan_min[i].dev_attr);
}
- for (i = 0; i < 4; i++) {
+ for (i = 0; i < data->pwm_num; i++) {
device_remove_file(dev, &sda_pwm[i].dev_attr);
device_remove_file(dev, &sda_pwm_mode[i].dev_attr);
device_remove_file(dev, &sda_pwm_enable[i].dev_attr);
device_remove_file(dev, &sda_target_temp[i].dev_attr);
device_remove_file(dev, &sda_tolerance[i].dev_attr);
}
- for (i = 0; i < ARRAY_SIZE(sda_temp); i++)
- device_remove_file(dev, &sda_temp[i].dev_attr);
+ for (i = 0; i < 3; i++) {
+ if ((i == 2) && data->temp3_disable)
+ continue;
+ device_remove_file(dev, &sda_temp_input[i].dev_attr);
+ device_remove_file(dev, &sda_temp_max[i].dev_attr);
+ device_remove_file(dev, &sda_temp_max_hyst[i].dev_attr);
+ device_remove_file(dev, &sda_temp_alarm[i].dev_attr);
+ device_remove_file(dev, &sda_temp_type[i].dev_attr);
+ }
device_remove_file(dev, &dev_attr_name);
device_remove_file(dev, &dev_attr_cpu0_vid);
for (i = 0; i < 2; i++) {
tmp = w83627ehf_read_value(data,
W83627EHF_REG_TEMP_CONFIG[i]);
+ if ((i == 1) && data->temp3_disable)
+ continue;
if (tmp & 0x01)
w83627ehf_write_value(data,
W83627EHF_REG_TEMP_CONFIG[i],
data->name = w83627ehf_device_names[sio_data->kind];
platform_set_drvdata(pdev, data);
- /* 627EHG and 627EHF have 10 voltage inputs; DHG has 9 */
- data->in_num = (sio_data->kind == w83627dhg) ? 9 : 10;
+ /* 627EHG and 627EHF have 10 voltage inputs; 627DHG and 667HG have 9 */
+ data->in_num = (sio_data->kind == w83627ehf) ? 10 : 9;
+ /* 667HG has 3 pwms */
+ data->pwm_num = (sio_data->kind == w83667hg) ? 3 : 4;
+
+ /* Check temp3 configuration bit for 667HG */
+ if (sio_data->kind == w83667hg) {
+ data->temp3_disable = w83627ehf_read_value(data,
+ W83627EHF_REG_TEMP_CONFIG[1]) & 0x01;
+ data->in6_skip = !data->temp3_disable;
+ }
/* Initialize the chip */
w83627ehf_init_device(data);
data->vrm = vid_which_vrm();
superio_enter(sio_data->sioreg);
/* Read VID value */
- superio_select(sio_data->sioreg, W83627EHF_LD_HWM);
- if (superio_inb(sio_data->sioreg, SIO_REG_VID_CTRL) & 0x80) {
- /* Set VID input sensibility if needed. In theory the BIOS
- should have set it, but in practice it's not always the
- case. We only do it for the W83627EHF/EHG because the
- W83627DHG is more complex in this respect. */
- if (sio_data->kind == w83627ehf) {
- en_vrm10 = superio_inb(sio_data->sioreg,
- SIO_REG_EN_VRM10);
- if ((en_vrm10 & 0x08) && data->vrm == 90) {
- dev_warn(dev, "Setting VID input voltage to "
- "TTL\n");
- superio_outb(sio_data->sioreg, SIO_REG_EN_VRM10,
- en_vrm10 & ~0x08);
- } else if (!(en_vrm10 & 0x08) && data->vrm == 100) {
- dev_warn(dev, "Setting VID input voltage to "
- "VRM10\n");
- superio_outb(sio_data->sioreg, SIO_REG_EN_VRM10,
- en_vrm10 | 0x08);
- }
- }
-
- data->vid = superio_inb(sio_data->sioreg, SIO_REG_VID_DATA);
- if (sio_data->kind == w83627ehf) /* 6 VID pins only */
- data->vid &= 0x3f;
-
+ if (sio_data->kind == w83667hg) {
+ /* W83667HG has different pins for VID input and output, so
+ we can get the VID input values directly at logical device D
+ 0xe3. */
+ superio_select(sio_data->sioreg, W83667HG_LD_VID);
+ data->vid = superio_inb(sio_data->sioreg, 0xe3);
err = device_create_file(dev, &dev_attr_cpu0_vid);
if (err)
goto exit_release;
} else {
- dev_info(dev, "VID pins in output mode, CPU VID not "
- "available\n");
+ superio_select(sio_data->sioreg, W83627EHF_LD_HWM);
+ if (superio_inb(sio_data->sioreg, SIO_REG_VID_CTRL) & 0x80) {
+ /* Set VID input sensibility if needed. In theory the
+ BIOS should have set it, but in practice it's not
+ always the case. We only do it for the W83627EHF/EHG
+ because the W83627DHG is more complex in this
+ respect. */
+ if (sio_data->kind == w83627ehf) {
+ en_vrm10 = superio_inb(sio_data->sioreg,
+ SIO_REG_EN_VRM10);
+ if ((en_vrm10 & 0x08) && data->vrm == 90) {
+ dev_warn(dev, "Setting VID input "
+ "voltage to TTL\n");
+ superio_outb(sio_data->sioreg,
+ SIO_REG_EN_VRM10,
+ en_vrm10 & ~0x08);
+ } else if (!(en_vrm10 & 0x08)
+ && data->vrm == 100) {
+ dev_warn(dev, "Setting VID input "
+ "voltage to VRM10\n");
+ superio_outb(sio_data->sioreg,
+ SIO_REG_EN_VRM10,
+ en_vrm10 | 0x08);
+ }
+ }
+
+ data->vid = superio_inb(sio_data->sioreg,
+ SIO_REG_VID_DATA);
+ if (sio_data->kind == w83627ehf) /* 6 VID pins only */
+ data->vid &= 0x3f;
+
+ err = device_create_file(dev, &dev_attr_cpu0_vid);
+ if (err)
+ goto exit_release;
+ } else {
+ dev_info(dev, "VID pins in output mode, CPU VID not "
+ "available\n");
+ }
}
/* fan4 and fan5 share some pins with the GPIO and serial flash */
-
- fan5pin = superio_inb(sio_data->sioreg, 0x24) & 0x2;
- fan4pin = superio_inb(sio_data->sioreg, 0x29) & 0x6;
+ if (sio_data->kind == w83667hg) {
+ fan5pin = superio_inb(sio_data->sioreg, 0x27) & 0x20;
+ fan4pin = superio_inb(sio_data->sioreg, 0x27) & 0x40;
+ } else {
+ fan5pin = !(superio_inb(sio_data->sioreg, 0x24) & 0x02);
+ fan4pin = !(superio_inb(sio_data->sioreg, 0x29) & 0x06);
+ }
superio_exit(sio_data->sioreg);
/* It looks like fan4 and fan5 pins can be alternatively used
data->has_fan = 0x07; /* fan1, fan2 and fan3 */
i = w83627ehf_read_value(data, W83627EHF_REG_FANDIV1);
- if ((i & (1 << 2)) && (!fan4pin))
+ if ((i & (1 << 2)) && fan4pin)
data->has_fan |= (1 << 3);
- if (!(i & (1 << 1)) && (!fan5pin))
+ if (!(i & (1 << 1)) && fan5pin)
data->has_fan |= (1 << 4);
/* Read fan clock dividers immediately */
goto exit_remove;
/* if fan4 is enabled create the sf3 files for it */
- if (data->has_fan & (1 << 3))
+ if ((data->has_fan & (1 << 3)) && data->pwm_num >= 4)
for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays_fan4); i++) {
if ((err = device_create_file(dev,
&sda_sf3_arrays_fan4[i].dev_attr)))
goto exit_remove;
}
- for (i = 0; i < data->in_num; i++)
+ for (i = 0; i < data->in_num; i++) {
+ if ((i == 6) && data->in6_skip)
+ continue;
if ((err = device_create_file(dev, &sda_in_input[i].dev_attr))
|| (err = device_create_file(dev,
&sda_in_alarm[i].dev_attr))
|| (err = device_create_file(dev,
&sda_in_max[i].dev_attr)))
goto exit_remove;
+ }
for (i = 0; i < 5; i++) {
if (data->has_fan & (1 << i)) {
|| (err = device_create_file(dev,
&sda_fan_min[i].dev_attr)))
goto exit_remove;
- if (i < 4 && /* w83627ehf only has 4 pwm */
+ if (i < data->pwm_num &&
((err = device_create_file(dev,
&sda_pwm[i].dev_attr))
|| (err = device_create_file(dev,
}
}
- for (i = 0; i < ARRAY_SIZE(sda_temp); i++)
- if ((err = device_create_file(dev, &sda_temp[i].dev_attr)))
+ for (i = 0; i < 3; i++) {
+ if ((i == 2) && data->temp3_disable)
+ continue;
+ if ((err = device_create_file(dev,
+ &sda_temp_input[i].dev_attr))
+ || (err = device_create_file(dev,
+ &sda_temp_max[i].dev_attr))
+ || (err = device_create_file(dev,
+ &sda_temp_max_hyst[i].dev_attr))
+ || (err = device_create_file(dev,
+ &sda_temp_alarm[i].dev_attr))
+ || (err = device_create_file(dev,
+ &sda_temp_type[i].dev_attr)))
goto exit_remove;
+ }
err = device_create_file(dev, &dev_attr_name);
if (err)
static const char __initdata sio_name_W83627EHF[] = "W83627EHF";
static const char __initdata sio_name_W83627EHG[] = "W83627EHG";
static const char __initdata sio_name_W83627DHG[] = "W83627DHG";
+ static const char __initdata sio_name_W83667HG[] = "W83667HG";
u16 val;
const char *sio_name;
sio_data->kind = w83627dhg;
sio_name = sio_name_W83627DHG;
break;
+ case SIO_W83667HG_ID:
+ sio_data->kind = w83667hg;
+ sio_name = sio_name_W83667HG;
+ break;
default:
if (val != 0xffff)
pr_debug(DRVNAME ": unsupported chip ID: 0x%04x\n",
#include <linux/i2c.h>
#include <linux/acpi.h>
#include <linux/io.h>
+#include <linux/dmi.h>
/* I801 SMBus address offsets */
#define SMBHSTSTS (0 + i801_smba)
static void __init input_apanel_init(void) {}
#endif
+#if defined CONFIG_SENSORS_FSCHMD || defined CONFIG_SENSORS_FSCHMD_MODULE
+struct dmi_onboard_device_info {
+ const char *name;
+ u8 type;
+ unsigned short i2c_addr;
+ const char *i2c_type;
+};
+
+static struct dmi_onboard_device_info __devinitdata dmi_devices[] = {
+ { "Syleus", DMI_DEV_TYPE_OTHER, 0x73, "fscsyl" },
+ { "Hermes", DMI_DEV_TYPE_OTHER, 0x73, "fscher" },
+ { "Hades", DMI_DEV_TYPE_OTHER, 0x73, "fschds" },
+};
+
+static void __devinit dmi_check_onboard_device(u8 type, const char *name,
+ struct i2c_adapter *adap)
+{
+ int i;
+ struct i2c_board_info info;
+
+ for (i = 0; i < ARRAY_SIZE(dmi_devices); i++) {
+ /* & ~0x80, ignore enabled/disabled bit */
+ if ((type & ~0x80) != dmi_devices[i].type)
+ continue;
+ if (strcmp(name, dmi_devices[i].name))
+ continue;
+
+ memset(&info, 0, sizeof(struct i2c_board_info));
+ info.addr = dmi_devices[i].i2c_addr;
+ strlcpy(info.type, dmi_devices[i].i2c_type, I2C_NAME_SIZE);
+ i2c_new_device(adap, &info);
+ break;
+ }
+}
+
+/* We use our own function to check for onboard devices instead of
+ dmi_find_device() as some buggy BIOS's have the devices we are interested
+ in marked as disabled */
+static void __devinit dmi_check_onboard_devices(const struct dmi_header *dm,
+ void *adap)
+{
+ int i, count;
+
+ if (dm->type != 10)
+ return;
+
+ count = (dm->length - sizeof(struct dmi_header)) / 2;
+ for (i = 0; i < count; i++) {
+ const u8 *d = (char *)(dm + 1) + (i * 2);
+ const char *name = ((char *) dm) + dm->length;
+ u8 type = d[0];
+ u8 s = d[1];
+
+ if (!s)
+ continue;
+ s--;
+ while (s > 0 && name[0]) {
+ name += strlen(name) + 1;
+ s--;
+ }
+ if (name[0] == 0) /* Bogus string reference */
+ continue;
+
+ dmi_check_onboard_device(type, name, adap);
+ }
+}
+#endif
+
static int __devinit i801_probe(struct pci_dev *dev, const struct pci_device_id *id)
{
unsigned char temp;
int err;
+#if defined CONFIG_SENSORS_FSCHMD || defined CONFIG_SENSORS_FSCHMD_MODULE
+ const char *vendor;
+#endif
I801_dev = dev;
i801_features = 0;
i2c_new_device(&i801_adapter, &info);
}
#endif
+#if defined CONFIG_SENSORS_FSCHMD || defined CONFIG_SENSORS_FSCHMD_MODULE
+ vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
+ if (vendor && !strcmp(vendor, "FUJITSU SIEMENS"))
+ dmi_walk(dmi_check_onboard_devices, &i801_adapter);
+#endif
return 0;
This driver is deprecated and will be dropped soon. Use
drivers/gpio/pca953x.c instead.
-config SENSORS_PCF8591
- tristate "Philips PCF8591"
- depends on EXPERIMENTAL
- default n
- help
- If you say yes here you get support for Philips PCF8591 chips.
-
- This driver can also be built as a module. If so, the module
- will be called pcf8591.
-
- These devices are hard to detect and rarely found on mainstream
- hardware. If unsure, say N.
-
config SENSORS_MAX6875
tristate "Maxim MAX6875 Power supply supervisor"
depends on EXPERIMENTAL
obj-$(CONFIG_SENSORS_PCA9539) += pca9539.o
obj-$(CONFIG_SENSORS_PCF8574) += pcf8574.o
obj-$(CONFIG_PCF8575) += pcf8575.o
-obj-$(CONFIG_SENSORS_PCF8591) += pcf8591.o
obj-$(CONFIG_SENSORS_TSL2550) += tsl2550.o
ifeq ($(CONFIG_I2C_DEBUG_CHIP),y)
if (!proc_bus_input_dir)
return -ENOMEM;
- proc_bus_input_dir->owner = THIS_MODULE;
-
entry = proc_create("devices", 0, proc_bus_input_dir,
&input_devices_fileops);
if (!entry)
return (0);
um_idi_proc_entry->read_proc = um_idi_proc_read;
- um_idi_proc_entry->owner = THIS_MODULE;
return (1);
}
* code. We have to check that the range is below the pfn_limit the Launcher
* gave us. We have to make sure that addr + len doesn't give us a false
* positive by overflowing, too. */
-int lguest_address_ok(const struct lguest *lg,
- unsigned long addr, unsigned long len)
+bool lguest_address_ok(const struct lguest *lg,
+ unsigned long addr, unsigned long len)
{
return (addr+len) / PAGE_SIZE < lg->pfn_limit && (addr+len >= addr);
}
}
/* An IDT entry can't be used unless the "present" bit is set. */
-static int idt_present(u32 lo, u32 hi)
+static bool idt_present(u32 lo, u32 hi)
{
return (hi & 0x8000);
}
* We set up the stack just like the CPU does for a real interrupt, so it's
* identical for the Guest (and the standard "iret" instruction will undo
* it). */
-static void set_guest_interrupt(struct lg_cpu *cpu, u32 lo, u32 hi, int has_err)
+static void set_guest_interrupt(struct lg_cpu *cpu, u32 lo, u32 hi,
+ bool has_err)
{
unsigned long gstack, origstack;
u32 eflags, ss, irq_enable;
/* set_guest_interrupt() takes the interrupt descriptor and a
* flag to say whether this interrupt pushes an error code onto
* the stack as well: virtual interrupts never do. */
- set_guest_interrupt(cpu, idt->a, idt->b, 0);
+ set_guest_interrupt(cpu, idt->a, idt->b, false);
}
/* Every time we deliver an interrupt, we update the timestamp in the
/*H:220 Now we've got the routines to deliver interrupts, delivering traps like
* page fault is easy. The only trick is that Intel decided that some traps
* should have error codes: */
-static int has_err(unsigned int trap)
+static bool has_err(unsigned int trap)
{
return (trap == 8 || (trap >= 10 && trap <= 14) || trap == 17);
}
/* deliver_trap() returns true if it could deliver the trap. */
-int deliver_trap(struct lg_cpu *cpu, unsigned int num)
+bool deliver_trap(struct lg_cpu *cpu, unsigned int num)
{
/* Trap numbers are always 8 bit, but we set an impossible trap number
* for traps inside the Switcher, so check that here. */
if (num >= ARRAY_SIZE(cpu->arch.idt))
- return 0;
+ return false;
/* Early on the Guest hasn't set the IDT entries (or maybe it put a
* bogus one in): if we fail here, the Guest will be killed. */
if (!idt_present(cpu->arch.idt[num].a, cpu->arch.idt[num].b))
- return 0;
+ return false;
set_guest_interrupt(cpu, cpu->arch.idt[num].a,
cpu->arch.idt[num].b, has_err(num));
- return 1;
+ return true;
}
/*H:250 Here's the hard part: returning to the Host every time a trap happens
*
* This routine indicates if a particular trap number could be delivered
* directly. */
-static int direct_trap(unsigned int num)
+static bool direct_trap(unsigned int num)
{
/* Hardware interrupts don't go to the Guest at all (except system
* call). */
if (num >= FIRST_EXTERNAL_VECTOR && !could_be_syscall(num))
- return 0;
+ return false;
/* The Host needs to see page faults (for shadow paging and to save the
* fault address), general protection faults (in/out emulation) and
- * device not available (TS handling), and of course, the hypercall
- * trap. */
- return num != 14 && num != 13 && num != 7 && num != LGUEST_TRAP_ENTRY;
+ * device not available (TS handling), invalid opcode fault (kvm hcall),
+ * and of course, the hypercall trap. */
+ return num != 14 && num != 13 && num != 7 &&
+ num != 6 && num != LGUEST_TRAP_ENTRY;
}
/*:*/
extern struct mutex lguest_lock;
/* core.c: */
-int lguest_address_ok(const struct lguest *lg,
- unsigned long addr, unsigned long len);
+bool lguest_address_ok(const struct lguest *lg,
+ unsigned long addr, unsigned long len);
void __lgread(struct lg_cpu *, void *, unsigned long, unsigned);
void __lgwrite(struct lg_cpu *, unsigned long, const void *, unsigned);
/* interrupts_and_traps.c: */
void maybe_do_interrupt(struct lg_cpu *cpu);
-int deliver_trap(struct lg_cpu *cpu, unsigned int num);
+bool deliver_trap(struct lg_cpu *cpu, unsigned int num);
void load_guest_idt_entry(struct lg_cpu *cpu, unsigned int i,
u32 low, u32 hi);
void guest_set_stack(struct lg_cpu *cpu, u32 seg, u32 esp, unsigned int pages);
void guest_set_pte(struct lg_cpu *cpu, unsigned long gpgdir,
unsigned long vaddr, pte_t val);
void map_switcher_in_guest(struct lg_cpu *cpu, struct lguest_pages *pages);
-int demand_page(struct lg_cpu *cpu, unsigned long cr2, int errcode);
+bool demand_page(struct lg_cpu *cpu, unsigned long cr2, int errcode);
void pin_page(struct lg_cpu *cpu, unsigned long vaddr);
unsigned long guest_pa(struct lg_cpu *cpu, unsigned long vaddr);
void page_table_guest_data_init(struct lg_cpu *cpu);
/* We set the status. */
to_lgdev(vdev)->desc->status = status;
- hcall(LHCALL_NOTIFY, (max_pfn<<PAGE_SHIFT) + offset, 0, 0);
+ kvm_hypercall1(LHCALL_NOTIFY, (max_pfn << PAGE_SHIFT) + offset);
}
static void lg_set_status(struct virtio_device *vdev, u8 status)
* virtqueue structure. */
struct lguest_vq_info *lvq = vq->priv;
- hcall(LHCALL_NOTIFY, lvq->config.pfn << PAGE_SHIFT, 0, 0);
+ kvm_hypercall1(LHCALL_NOTIFY, lvq->config.pfn << PAGE_SHIFT);
}
/* An extern declaration inside a C file is bad form. Don't do it. */
*
* If we fixed up the fault (ie. we mapped the address), this routine returns
* true. Otherwise, it was a real fault and we need to tell the Guest. */
-int demand_page(struct lg_cpu *cpu, unsigned long vaddr, int errcode)
+bool demand_page(struct lg_cpu *cpu, unsigned long vaddr, int errcode)
{
pgd_t gpgd;
pgd_t *spgd;
gpgd = lgread(cpu, gpgd_addr(cpu, vaddr), pgd_t);
/* Toplevel not present? We can't map it in. */
if (!(pgd_flags(gpgd) & _PAGE_PRESENT))
- return 0;
+ return false;
/* Now look at the matching shadow entry. */
spgd = spgd_addr(cpu, cpu->cpu_pgd, vaddr);
* simple for this corner case. */
if (!ptepage) {
kill_guest(cpu, "out of memory allocating pte page");
- return 0;
+ return false;
}
/* We check that the Guest pgd is OK. */
check_gpgd(cpu, gpgd);
/* If this page isn't in the Guest page tables, we can't page it in. */
if (!(pte_flags(gpte) & _PAGE_PRESENT))
- return 0;
+ return false;
/* Check they're not trying to write to a page the Guest wants
* read-only (bit 2 of errcode == write). */
if ((errcode & 2) && !(pte_flags(gpte) & _PAGE_RW))
- return 0;
+ return false;
/* User access to a kernel-only page? (bit 3 == user access) */
if ((errcode & 4) && !(pte_flags(gpte) & _PAGE_USER))
- return 0;
+ return false;
/* Check that the Guest PTE flags are OK, and the page number is below
* the pfn_limit (ie. not mapping the Launcher binary). */
* manipulated, the result returned and the code complete. A small
* delay and a trace of alliteration are the only indications the Guest
* has that a page fault occurred at all. */
- return 1;
+ return true;
}
/*H:360
*
* This is a quick version which answers the question: is this virtual address
* mapped by the shadow page tables, and is it writable? */
-static int page_writable(struct lg_cpu *cpu, unsigned long vaddr)
+static bool page_writable(struct lg_cpu *cpu, unsigned long vaddr)
{
pgd_t *spgd;
unsigned long flags;
/* Look at the current top level entry: is it present? */
spgd = spgd_addr(cpu, cpu->cpu_pgd, vaddr);
if (!(pgd_flags(*spgd) & _PAGE_PRESENT))
- return 0;
+ return false;
/* Check the flags on the pte entry itself: it must be present and
* writable. */
/* First step: get the top-level Guest page table entry. */
gpgd = lgread(cpu, gpgd_addr(cpu, vaddr), pgd_t);
/* Toplevel not present? We can't map it in. */
- if (!(pgd_flags(gpgd) & _PAGE_PRESENT))
+ if (!(pgd_flags(gpgd) & _PAGE_PRESENT)) {
kill_guest(cpu, "Bad address %#lx", vaddr);
+ return -1UL;
+ }
gpte = lgread(cpu, gpte_addr(gpgd, vaddr), pte_t);
if (!(pte_flags(gpte) & _PAGE_PRESENT))
* "Task State Segment" which controls all kinds of delicate things. The
* LGUEST_CS and LGUEST_DS entries are reserved for the Switcher, and the
* the Guest can't be trusted to deal with double faults. */
-static int ignored_gdt(unsigned int num)
+static bool ignored_gdt(unsigned int num)
{
return (num == GDT_ENTRY_TSS
|| num == GDT_ENTRY_LGUEST_CS
return 1;
}
+/* Our hypercalls mechanism used to be based on direct software interrupts.
+ * After Anthony's "Refactor hypercall infrastructure" kvm patch, we decided to
+ * change over to using kvm hypercalls.
+ *
+ * KVM_HYPERCALL is actually a "vmcall" instruction, which generates an invalid
+ * opcode fault (fault 6) on non-VT cpus, so the easiest solution seemed to be
+ * an *emulation approach*: if the fault was really produced by an hypercall
+ * (is_hypercall() does exactly this check), we can just call the corresponding
+ * hypercall host implementation function.
+ *
+ * But these invalid opcode faults are notably slower than software interrupts.
+ * So we implemented the *patching (or rewriting) approach*: every time we hit
+ * the KVM_HYPERCALL opcode in Guest code, we patch it to the old "int 0x1f"
+ * opcode, so next time the Guest calls this hypercall it will use the
+ * faster trap mechanism.
+ *
+ * Matias even benchmarked it to convince you: this shows the average cycle
+ * cost of a hypercall. For each alternative solution mentioned above we've
+ * made 5 runs of the benchmark:
+ *
+ * 1) direct software interrupt: 2915, 2789, 2764, 2721, 2898
+ * 2) emulation technique: 3410, 3681, 3466, 3392, 3780
+ * 3) patching (rewrite) technique: 2977, 2975, 2891, 2637, 2884
+ *
+ * One two-line function is worth a 20% hypercall speed boost!
+ */
+static void rewrite_hypercall(struct lg_cpu *cpu)
+{
+ /* This are the opcodes we use to patch the Guest. The opcode for "int
+ * $0x1f" is "0xcd 0x1f" but vmcall instruction is 3 bytes long, so we
+ * complete the sequence with a NOP (0x90). */
+ u8 insn[3] = {0xcd, 0x1f, 0x90};
+
+ __lgwrite(cpu, guest_pa(cpu, cpu->regs->eip), insn, sizeof(insn));
+}
+
+static bool is_hypercall(struct lg_cpu *cpu)
+{
+ u8 insn[3];
+
+ /* This must be the Guest kernel trying to do something.
+ * The bottom two bits of the CS segment register are the privilege
+ * level. */
+ if ((cpu->regs->cs & 3) != GUEST_PL)
+ return false;
+
+ /* Is it a vmcall? */
+ __lgread(cpu, insn, guest_pa(cpu, cpu->regs->eip), sizeof(insn));
+ return insn[0] == 0x0f && insn[1] == 0x01 && insn[2] == 0xc1;
+}
+
/*H:050 Once we've re-enabled interrupts, we look at why the Guest exited. */
void lguest_arch_handle_trap(struct lg_cpu *cpu)
{
break;
case 32 ... 255:
/* These values mean a real interrupt occurred, in which case
- * the Host handler has already been run. We just do a
+ * the Host handler has already been run. We just do a
* friendly check if another process should now be run, then
* return to run the Guest again */
cond_resched();
* up the pointer now to indicate a hypercall is pending. */
cpu->hcall = (struct hcall_args *)cpu->regs;
return;
+ case 6:
+ /* kvm hypercalls trigger an invalid opcode fault (6).
+ * We need to check if ring == GUEST_PL and
+ * faulting instruction == vmcall. */
+ if (is_hypercall(cpu)) {
+ rewrite_hypercall(cpu);
+ return;
+ }
+ break;
}
/* We didn't handle the trap, so it needs to go to the Guest. */
{
cpia_proc_root = proc_mkdir("cpia", NULL);
- if (cpia_proc_root)
- cpia_proc_root->owner = THIS_MODULE;
- else
+ if (!cpia_proc_root)
LOG("Unable to initialise /proc/cpia\n");
}
if (!i2o_proc_dir_root)
return -1;
- i2o_proc_dir_root->owner = THIS_MODULE;
-
list_for_each_entry(c, &i2o_controllers, list)
i2o_proc_iop_add(i2o_proc_dir_root, c);
*/
static void bond_create_proc_dir(void)
{
- int len = strlen(DRV_NAME);
-
- for (bond_proc_dir = init_net.proc_net->subdir; bond_proc_dir;
- bond_proc_dir = bond_proc_dir->next) {
- if ((bond_proc_dir->namelen == len) &&
- !memcmp(bond_proc_dir->name, DRV_NAME, len)) {
- break;
- }
- }
-
if (!bond_proc_dir) {
bond_proc_dir = proc_mkdir(DRV_NAME, init_net.proc_net);
- if (bond_proc_dir) {
- bond_proc_dir->owner = THIS_MODULE;
- } else {
+ if (!bond_proc_dir)
printk(KERN_WARNING DRV_NAME
": Warning: cannot create /proc/net/%s\n",
DRV_NAME);
- }
}
}
*/
static void bond_destroy_proc_dir(void)
{
- struct proc_dir_entry *de;
-
- if (!bond_proc_dir) {
- return;
- }
-
- /* verify that the /proc dir is empty */
- for (de = bond_proc_dir->subdir; de; de = de->next) {
- /* ignore . and .. */
- if (*(de->name) != '.') {
- break;
- }
- }
-
- if (de) {
- if (bond_proc_dir->owner == THIS_MODULE) {
- bond_proc_dir->owner = NULL;
- }
- } else {
+ if (bond_proc_dir) {
remove_proc_entry(DRV_NAME, init_net.proc_net);
bond_proc_dir = NULL;
}
id = of_get_property(phy, "reg", NULL);
of_node_put(phy);
- of_node_put(mdio);
fsl_pq_mdio_bus_name(bus_name, mdio);
+ of_node_put(mdio);
snprintf(priv->phy_bus_id, sizeof(priv->phy_bus_id), "%s:%02x",
bus_name, *id);
}
.ndo_stop = scc_close,
.ndo_start_xmit = scc_send_packet,
.ndo_do_ioctl = scc_ioctl,
+ .ndo_set_mac_address = scc_set_mac_address,
};
static int __init setup_adapter(int card_base, int type, int n)
dev->irq = irq;
dev->netdev_ops = &scc_netdev_ops;
dev->header_ops = &ax25_header_ops;
- dev->set_mac_address = scc_set_mac_address;
}
if (register_netdev(info->dev[0])) {
printk(KERN_ERR "dmascc: could not register %s\n",
* without procfs - it's not required for the driver to work.
*/
vlsi_proc_root = proc_mkdir(PROC_DIR, NULL);
- if (vlsi_proc_root) {
- /* protect registered procdir against module removal.
- * Because we are in the module init path there's no race
- * window after create_proc_entry (and no barrier needed).
- */
- vlsi_proc_root->owner = THIS_MODULE;
- }
ret = pci_register_driver(&vlsi_irda_driver);
static ssize_t show_local_ip(struct netconsole_target *nt, char *buf)
{
- return snprintf(buf, PAGE_SIZE, "%d.%d.%d.%d\n",
- HIPQUAD(nt->np.local_ip));
+ return snprintf(buf, PAGE_SIZE, "%pI4\n", &nt->np.local_ip);
}
static ssize_t show_remote_ip(struct netconsole_target *nt, char *buf)
{
- return snprintf(buf, PAGE_SIZE, "%d.%d.%d.%d\n",
- HIPQUAD(nt->np.remote_ip));
+ return snprintf(buf, PAGE_SIZE, "%pI4\n", &nt->np.remote_ip);
}
static ssize_t show_local_mac(struct netconsole_target *nt, char *buf)
return -EINVAL;
}
- nt->np.local_ip = ntohl(in_aton(buf));
+ nt->np.local_ip = in_aton(buf);
return strnlen(buf, count);
}
return -EINVAL;
}
- nt->np.remote_ip = ntohl(in_aton(buf));
+ nt->np.remote_ip = in_aton(buf);
return strnlen(buf, count);
}
outb(MM_EN_XMT|MM_MUX, IE_MMODE); /* Start transmission */
}
+static const struct net_device_ops ni5010_netdev_ops = {
+ .ndo_open = ni5010_open,
+ .ndo_stop = ni5010_close,
+ .ndo_start_xmit = ni5010_send_packet,
+ .ndo_set_multicast_list = ni5010_set_multicast_list,
+ .ndo_tx_timeout = ni5010_timeout,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_set_mac_address = eth_mac_addr,
+ .ndo_change_mtu = eth_change_mtu,
+};
+
/*
* This is the real probe routine. Linux has a history of friendly device
* probes on the ISA bus. A good device probes avoids doing writes, and
outb(0, IE_RBUF); /* set buffer byte 0 to 0 again */
}
printk("-> bufsize rcv/xmt=%d/%d\n", bufsize_rcv, NI5010_BUFSIZE);
- memset(netdev_priv(dev), 0, sizeof(struct ni5010_local));
- dev->open = ni5010_open;
- dev->stop = ni5010_close;
- dev->hard_start_xmit = ni5010_send_packet;
- dev->set_multicast_list = ni5010_set_multicast_list;
- dev->tx_timeout = ni5010_timeout;
+ dev->netdev_ops = &ni5010_netdev_ops;
dev->watchdog_timeo = HZ/20;
dev->flags &= ~IFF_MULTICAST; /* Multicast doesn't work */
return num_rcr;
}
-static int niu_process_rx_pkt(struct niu *np, struct rx_ring_info *rp)
+static int niu_process_rx_pkt(struct napi_struct *napi, struct niu *np,
+ struct rx_ring_info *rp)
{
unsigned int index = rp->rcr_index;
struct sk_buff *skb;
skb->protocol = eth_type_trans(skb, np->dev);
skb_record_rx_queue(skb, rp->rx_channel);
- netif_receive_skb(skb);
+ napi_gro_receive(napi, skb);
return num_rcr;
}
}
}
-static int niu_rx_work(struct niu *np, struct rx_ring_info *rp, int budget)
+static int niu_rx_work(struct napi_struct *napi, struct niu *np,
+ struct rx_ring_info *rp, int budget)
{
int qlen, rcr_done = 0, work_done = 0;
struct rxdma_mailbox *mbox = rp->mbox;
rcr_done = work_done = 0;
qlen = min(qlen, budget);
while (work_done < qlen) {
- rcr_done += niu_process_rx_pkt(np, rp);
+ rcr_done += niu_process_rx_pkt(napi, np, rp);
work_done++;
}
if (rx_vec & (1 << rp->rx_channel)) {
int this_work_done;
- this_work_done = niu_rx_work(np, rp,
+ this_work_done = niu_rx_work(&lp->napi, np, rp,
budget);
budget -= this_work_done;
#if TG3_VLAN_TAG_USED
static int tg3_vlan_rx(struct tg3 *tp, struct sk_buff *skb, u16 vlan_tag)
{
- return vlan_hwaccel_receive_skb(skb, tp->vlgrp, vlan_tag);
+ return vlan_gro_receive(&tp->napi, tp->vlgrp, vlan_tag, skb);
}
#endif
desc->err_vlan & RXD_VLAN_MASK);
} else
#endif
- netif_receive_skb(skb);
+ napi_gro_receive(&tp->napi, skb);
received++;
budget--;
mdio = of_get_parent(phy);
if (mdio == NULL)
- return -1;
+ return -ENODEV;
err = of_address_to_resource(mdio, 0, &res);
- of_node_put(mdio);
-
- if (err)
- return -1;
+ if (err) {
+ of_node_put(mdio);
+ return err;
+ }
fsl_pq_mdio_bus_name(bus_name, mdio);
+ of_node_put(mdio);
snprintf(ug_info->phy_bus_id, sizeof(ug_info->phy_bus_id),
"%s:%02x", bus_name, *prop);
}
.ndo_set_mac_address = airo_set_mac_address,
.ndo_do_ioctl = airo_ioctl,
.ndo_change_mtu = airo_change_mtu,
- .ndo_set_mac_address = eth_mac_addr,
.ndo_validate_addr = eth_validate_addr,
};
.ndo_set_mac_address = airo_set_mac_address,
.ndo_do_ioctl = airo_ioctl,
.ndo_change_mtu = airo_change_mtu,
- .ndo_set_mac_address = eth_mac_addr,
.ndo_validate_addr = eth_validate_addr,
};
goto fail;
apriv->proc_entry->uid = proc_uid;
apriv->proc_entry->gid = proc_gid;
- apriv->proc_entry->owner = THIS_MODULE;
/* Setup the StatsDelta */
entry = proc_create_data("StatsDelta",
.ndo_set_mac_address = ipw_net_set_mac_address,
.ndo_start_xmit = ieee80211_xmit,
.ndo_change_mtu = ieee80211_change_mtu,
- .ndo_set_mac_address = eth_mac_addr,
.ndo_validate_addr = eth_validate_addr,
};
.ndo_tx_timeout = islpci_eth_tx_timeout,
.ndo_set_mac_address = prism54_set_mac_address,
.ndo_change_mtu = eth_change_mtu,
- .ndo_set_mac_address = eth_mac_addr,
.ndo_validate_addr = eth_validate_addr,
};
.ndo_set_multicast_list = zd1201_set_multicast,
.ndo_set_mac_address = zd1201_set_mac_address,
.ndo_change_mtu = eth_change_mtu,
- .ndo_set_mac_address = eth_mac_addr,
.ndo_validate_addr = eth_validate_addr,
};
{
struct pci_dev * pci_dev = to_pci_dev(dev);
struct pci_driver * drv = pci_dev->driver;
- int i = 0;
+
+ pci_dev->state_saved = false;
if (drv && drv->suspend) {
pci_power_t prev = pci_dev->current_state;
+ int error;
- pci_dev->state_saved = false;
-
- i = drv->suspend(pci_dev, state);
- suspend_report_result(drv->suspend, i);
- if (i)
- return i;
-
- if (pci_dev->state_saved)
- goto Fixup;
+ error = drv->suspend(pci_dev, state);
+ suspend_report_result(drv->suspend, error);
+ if (error)
+ return error;
- if (pci_dev->current_state != PCI_D0
+ if (!pci_dev->state_saved && pci_dev->current_state != PCI_D0
&& pci_dev->current_state != PCI_UNKNOWN) {
WARN_ONCE(pci_dev->current_state != prev,
"PCI PM: Device state not saved by %pF\n",
drv->suspend);
- goto Fixup;
}
}
- pci_save_state(pci_dev);
- /*
- * This is for compatibility with existing code with legacy PM support.
- */
- pci_pm_set_unknown_state(pci_dev);
-
- Fixup:
pci_fixup_device(pci_fixup_suspend, pci_dev);
- return i;
+ return 0;
}
static int pci_legacy_suspend_late(struct device *dev, pm_message_t state)
{
struct pci_dev * pci_dev = to_pci_dev(dev);
struct pci_driver * drv = pci_dev->driver;
- int i = 0;
if (drv && drv->suspend_late) {
- i = drv->suspend_late(pci_dev, state);
- suspend_report_result(drv->suspend_late, i);
+ pci_power_t prev = pci_dev->current_state;
+ int error;
+
+ error = drv->suspend_late(pci_dev, state);
+ suspend_report_result(drv->suspend_late, error);
+ if (error)
+ return error;
+
+ if (!pci_dev->state_saved && pci_dev->current_state != PCI_D0
+ && pci_dev->current_state != PCI_UNKNOWN) {
+ WARN_ONCE(pci_dev->current_state != prev,
+ "PCI PM: Device state not saved by %pF\n",
+ drv->suspend_late);
+ return 0;
+ }
}
- return i;
+
+ if (!pci_dev->state_saved)
+ pci_save_state(pci_dev);
+
+ pci_pm_set_unknown_state(pci_dev);
+
+ return 0;
}
static int pci_legacy_resume_early(struct device *dev)
/* Auxiliary functions used by the new power management framework */
+/**
+ * pci_restore_standard_config - restore standard config registers of PCI device
+ * @pci_dev: PCI device to handle
+ */
+static int pci_restore_standard_config(struct pci_dev *pci_dev)
+{
+ pci_update_current_state(pci_dev, PCI_UNKNOWN);
+
+ if (pci_dev->current_state != PCI_D0) {
+ int error = pci_set_power_state(pci_dev, PCI_D0);
+ if (error)
+ return error;
+ }
+
+ return pci_dev->state_saved ? pci_restore_state(pci_dev) : 0;
+}
+
static void pci_pm_default_resume_noirq(struct pci_dev *pci_dev)
{
pci_restore_standard_config(pci_dev);
/* Disable non-bridge devices without PM support */
if (!pci_is_bridge(pci_dev))
pci_disable_enabled_device(pci_dev);
- pci_save_state(pci_dev);
}
static bool pci_has_legacy_pm_support(struct pci_dev *pci_dev)
if (pci_has_legacy_pm_support(pci_dev))
return pci_legacy_suspend(dev, PMSG_SUSPEND);
+ pci_dev->state_saved = false;
+
if (!pm) {
pci_pm_default_suspend(pci_dev);
goto Fixup;
}
- pci_dev->state_saved = false;
-
if (pm->suspend) {
pci_power_t prev = pci_dev->current_state;
int error;
if (error)
return error;
- if (pci_dev->state_saved)
- goto Fixup;
-
- if (pci_dev->current_state != PCI_D0
+ if (!pci_dev->state_saved && pci_dev->current_state != PCI_D0
&& pci_dev->current_state != PCI_UNKNOWN) {
WARN_ONCE(pci_dev->current_state != prev,
"PCI PM: State of device not saved by %pF\n",
pm->suspend);
- goto Fixup;
}
}
- if (!pci_dev->state_saved) {
- pci_save_state(pci_dev);
- if (!pci_is_bridge(pci_dev))
- pci_prepare_to_sleep(pci_dev);
- }
-
Fixup:
pci_fixup_device(pci_fixup_suspend, pci_dev);
static int pci_pm_suspend_noirq(struct device *dev)
{
struct pci_dev *pci_dev = to_pci_dev(dev);
- struct device_driver *drv = dev->driver;
- int error = 0;
+ struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
if (pci_has_legacy_pm_support(pci_dev))
return pci_legacy_suspend_late(dev, PMSG_SUSPEND);
- if (drv && drv->pm && drv->pm->suspend_noirq) {
- error = drv->pm->suspend_noirq(dev);
- suspend_report_result(drv->pm->suspend_noirq, error);
+ if (!pm) {
+ pci_save_state(pci_dev);
+ return 0;
}
- if (!error)
- pci_pm_set_unknown_state(pci_dev);
+ if (pm->suspend_noirq) {
+ pci_power_t prev = pci_dev->current_state;
+ int error;
- return error;
+ error = pm->suspend_noirq(dev);
+ suspend_report_result(pm->suspend_noirq, error);
+ if (error)
+ return error;
+
+ if (!pci_dev->state_saved && pci_dev->current_state != PCI_D0
+ && pci_dev->current_state != PCI_UNKNOWN) {
+ WARN_ONCE(pci_dev->current_state != prev,
+ "PCI PM: State of device not saved by %pF\n",
+ pm->suspend_noirq);
+ return 0;
+ }
+ }
+
+ if (!pci_dev->state_saved) {
+ pci_save_state(pci_dev);
+ if (!pci_is_bridge(pci_dev))
+ pci_prepare_to_sleep(pci_dev);
+ }
+
+ pci_pm_set_unknown_state(pci_dev);
+
+ return 0;
}
static int pci_pm_resume_noirq(struct device *dev)
if (pci_has_legacy_pm_support(pci_dev))
return pci_legacy_suspend(dev, PMSG_FREEZE);
+ pci_dev->state_saved = false;
+
if (!pm) {
pci_pm_default_suspend(pci_dev);
return 0;
}
- pci_dev->state_saved = false;
-
if (pm->freeze) {
int error;
return error;
}
- if (!pci_dev->state_saved)
- pci_save_state(pci_dev);
-
return 0;
}
{
struct pci_dev *pci_dev = to_pci_dev(dev);
struct device_driver *drv = dev->driver;
- int error = 0;
if (pci_has_legacy_pm_support(pci_dev))
return pci_legacy_suspend_late(dev, PMSG_FREEZE);
if (drv && drv->pm && drv->pm->freeze_noirq) {
+ int error;
+
error = drv->pm->freeze_noirq(dev);
suspend_report_result(drv->pm->freeze_noirq, error);
+ if (error)
+ return error;
}
- if (!error)
- pci_pm_set_unknown_state(pci_dev);
+ if (!pci_dev->state_saved)
+ pci_save_state(pci_dev);
- return error;
+ pci_pm_set_unknown_state(pci_dev);
+
+ return 0;
}
static int pci_pm_thaw_noirq(struct device *dev)
{
struct pci_dev *pci_dev = to_pci_dev(dev);
struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
- int error = 0;
if (pci_has_legacy_pm_support(pci_dev))
return pci_legacy_suspend(dev, PMSG_HIBERNATE);
+ pci_dev->state_saved = false;
+
if (!pm) {
pci_pm_default_suspend(pci_dev);
goto Fixup;
}
- pci_dev->state_saved = false;
-
if (pm->poweroff) {
+ int error;
+
error = pm->poweroff(dev);
suspend_report_result(pm->poweroff, error);
+ if (error)
+ return error;
}
- if (!pci_dev->state_saved && !pci_is_bridge(pci_dev))
- pci_prepare_to_sleep(pci_dev);
-
Fixup:
pci_fixup_device(pci_fixup_suspend, pci_dev);
- return error;
+ return 0;
}
static int pci_pm_poweroff_noirq(struct device *dev)
{
+ struct pci_dev *pci_dev = to_pci_dev(dev);
struct device_driver *drv = dev->driver;
- int error = 0;
if (pci_has_legacy_pm_support(to_pci_dev(dev)))
return pci_legacy_suspend_late(dev, PMSG_HIBERNATE);
- if (drv && drv->pm && drv->pm->poweroff_noirq) {
+ if (!drv || !drv->pm)
+ return 0;
+
+ if (drv->pm->poweroff_noirq) {
+ int error;
+
error = drv->pm->poweroff_noirq(dev);
suspend_report_result(drv->pm->poweroff_noirq, error);
+ if (error)
+ return error;
}
- return error;
+ if (!pci_dev->state_saved && !pci_is_bridge(pci_dev))
+ pci_prepare_to_sleep(pci_dev);
+
+ return 0;
}
static int pci_pm_restore_noirq(struct device *dev)
* given PCI device
* @dev: PCI device to handle.
* @state: PCI power state (D0, D1, D2, D3hot) to put the device into.
- * @wait: If 'true', wait for the device to change its power state
*
* RETURN VALUE:
* -EINVAL if the requested state is invalid.
* 0 if device already is in the requested state.
* 0 if device's power state has been successfully changed.
*/
-static int
-pci_raw_set_power_state(struct pci_dev *dev, pci_power_t state, bool wait)
+static int pci_raw_set_power_state(struct pci_dev *dev, pci_power_t state)
{
u16 pmcsr;
bool need_restore = false;
+ /* Check if we're already there */
+ if (dev->current_state == state)
+ return 0;
+
if (!dev->pm_cap)
return -EIO;
* Can enter D0 from any state, but if we can only go deeper
* to sleep if we're already in a low power state
*/
- if (dev->current_state == state) {
- /* we're already there */
- return 0;
- } else if (state != PCI_D0 && dev->current_state <= PCI_D3cold
+ if (state != PCI_D0 && dev->current_state <= PCI_D3cold
&& dev->current_state > state) {
dev_err(&dev->dev, "invalid power transition "
"(from state %d to %d)\n", dev->current_state, state);
break;
case PCI_UNKNOWN: /* Boot-up */
if ((pmcsr & PCI_PM_CTRL_STATE_MASK) == PCI_D3hot
- && !(pmcsr & PCI_PM_CTRL_NO_SOFT_RESET)) {
+ && !(pmcsr & PCI_PM_CTRL_NO_SOFT_RESET))
need_restore = true;
- wait = true;
- }
/* Fall-through: force to D0 */
default:
pmcsr = 0;
/* enter specified state */
pci_write_config_word(dev, dev->pm_cap + PCI_PM_CTRL, pmcsr);
- if (!wait)
- return 0;
-
/* Mandatory power management transition delays */
/* see PCI PM 1.1 5.6.1 table 18 */
if (state == PCI_D3hot || dev->current_state == PCI_D3hot)
if (need_restore)
pci_restore_bars(dev);
- if (wait && dev->bus->self)
+ if (dev->bus->self)
pcie_aspm_pm_state_change(dev->bus->self);
return 0;
}
}
+/**
+ * pci_platform_power_transition - Use platform to change device power state
+ * @dev: PCI device to handle.
+ * @state: State to put the device into.
+ */
+static int pci_platform_power_transition(struct pci_dev *dev, pci_power_t state)
+{
+ int error;
+
+ if (platform_pci_power_manageable(dev)) {
+ error = platform_pci_set_power_state(dev, state);
+ if (!error)
+ pci_update_current_state(dev, state);
+ } else {
+ error = -ENODEV;
+ /* Fall back to PCI_D0 if native PM is not supported */
+ pci_update_current_state(dev, PCI_D0);
+ }
+
+ return error;
+}
+
+/**
+ * __pci_start_power_transition - Start power transition of a PCI device
+ * @dev: PCI device to handle.
+ * @state: State to put the device into.
+ */
+static void __pci_start_power_transition(struct pci_dev *dev, pci_power_t state)
+{
+ if (state == PCI_D0)
+ pci_platform_power_transition(dev, PCI_D0);
+}
+
+/**
+ * __pci_complete_power_transition - Complete power transition of a PCI device
+ * @dev: PCI device to handle.
+ * @state: State to put the device into.
+ *
+ * This function should not be called directly by device drivers.
+ */
+int __pci_complete_power_transition(struct pci_dev *dev, pci_power_t state)
+{
+ return state > PCI_D0 ?
+ pci_platform_power_transition(dev, state) : -EINVAL;
+}
+EXPORT_SYMBOL_GPL(__pci_complete_power_transition);
+
/**
* pci_set_power_state - Set the power state of a PCI device
* @dev: PCI device to handle.
*/
return 0;
- if (state == PCI_D0 && platform_pci_power_manageable(dev)) {
- /*
- * Allow the platform to change the state, for example via ACPI
- * _PR0, _PS0 and some such, but do not trust it.
- */
- int ret = platform_pci_set_power_state(dev, PCI_D0);
- if (!ret)
- pci_update_current_state(dev, PCI_D0);
- }
+ /* Check if we're already there */
+ if (dev->current_state == state)
+ return 0;
+
+ __pci_start_power_transition(dev, state);
+
/* This device is quirked not to be put into D3, so
don't put it in D3 */
if (state == PCI_D3hot && (dev->dev_flags & PCI_DEV_FLAGS_NO_D3))
return 0;
- error = pci_raw_set_power_state(dev, state, true);
+ error = pci_raw_set_power_state(dev, state);
- if (state > PCI_D0 && platform_pci_power_manageable(dev)) {
- /* Allow the platform to finalize the transition */
- int ret = platform_pci_set_power_state(dev, state);
- if (!ret) {
- pci_update_current_state(dev, state);
- error = 0;
- }
- }
+ if (!__pci_complete_power_transition(dev, state))
+ error = 0;
return error;
}
if (target_state == PCI_POWER_ERROR)
return -EIO;
- pci_enable_wake(dev, target_state, true);
+ pci_enable_wake(dev, target_state, device_may_wakeup(&dev->dev));
error = pci_set_power_state(dev, target_state);
"unable to preallocate PCI-X save buffer\n");
}
-/**
- * pci_restore_standard_config - restore standard config registers of PCI device
- * @dev: PCI device to handle
- *
- * This function assumes that the device's configuration space is accessible.
- * If the device needs to be powered up, the function will wait for it to
- * change the state.
- */
-int pci_restore_standard_config(struct pci_dev *dev)
-{
- pci_power_t prev_state;
- int error;
-
- pci_update_current_state(dev, PCI_D0);
-
- prev_state = dev->current_state;
- if (prev_state == PCI_D0)
- goto Restore;
-
- error = pci_raw_set_power_state(dev, PCI_D0, false);
- if (error)
- return error;
-
- /*
- * This assumes that we won't get a bus in B2 or B3 from the BIOS, but
- * we've made this assumption forever and it appears to be universally
- * satisfied.
- */
- switch(prev_state) {
- case PCI_D3cold:
- case PCI_D3hot:
- mdelay(pci_pm_d3_delay);
- break;
- case PCI_D2:
- udelay(PCI_PM_D2_DELAY);
- break;
- }
-
- pci_update_current_state(dev, PCI_D0);
-
- Restore:
- return dev->state_saved ? pci_restore_state(dev) : 0;
-}
-
/**
* pci_enable_ari - enable ARI forwarding if hardware support it
* @dev: the PCI device
extern void pci_pm_init(struct pci_dev *dev);
extern void platform_pci_wakeup_init(struct pci_dev *dev);
extern void pci_allocate_cap_save_buffers(struct pci_dev *dev);
-extern int pci_restore_standard_config(struct pci_dev *dev);
static inline bool pci_is_bridge(struct pci_dev *pci_dev)
{
proc->write_proc = writefunc;
proc->read_proc = readfunc;
proc->data = acpi_driver_data(device);
- proc->owner = THIS_MODULE;
proc->uid = asus_uid;
proc->gid = asus_gid;
return 0;
if (proc) {
proc->read_proc = proc_read_info;
proc->data = acpi_driver_data(device);
- proc->owner = THIS_MODULE;
proc->uid = asus_uid;
proc->gid = asus_gid;
} else {
printk(KERN_ERR "Asus ACPI: Unable to create /proc entry\n");
return -ENODEV;
}
- asus_proc_dir->owner = THIS_MODULE;
result = acpi_bus_register_driver(&asus_hotk_driver);
if (result < 0) {
da_num_tokens += tokens;
}
-static void find_tokens(const struct dmi_header *dm)
+static void find_tokens(const struct dmi_header *dm, void *dummy)
{
switch (dm->type) {
case 0xd4: /* Indexed IO */
if (!dmi_check_system(dell_device_table))
return -ENODEV;
- dmi_walk(find_tokens);
+ dmi_walk(find_tokens, NULL);
if (!da_tokens) {
printk(KERN_INFO "dell-laptop: Unable to find dmi tokens\n");
ret = -ENODEV;
goto err_out;
}
- entry->owner = THIS_MODULE;
entry->data = ibm;
entry->read_proc = &dispatch_procfs_read;
if (ibm->write)
thinkpad_acpi_module_exit();
return -ENODEV;
}
- proc_dir->owner = THIS_MODULE;
ret = platform_driver_register(&tpacpi_pdriver);
if (ret) {
toshiba_proc_dir,
(read_proc_t *) dispatch_read,
item);
- if (proc)
- proc->owner = THIS_MODULE;
if (proc && item->write_func)
proc->write_proc = (write_proc_t *) dispatch_write;
}
toshiba_acpi_exit();
return -ENODEV;
} else {
- toshiba_proc_dir->owner = THIS_MODULE;
status = add_device();
if (ACPI_FAILURE(status)) {
toshiba_acpi_exit();
void rtc_proc_add_device(struct rtc_device *rtc)
{
- if (rtc->id == 0) {
- struct proc_dir_entry *ent;
-
- ent = proc_create_data("driver/rtc", 0, NULL,
- &rtc_proc_fops, rtc);
- if (ent)
- ent->owner = rtc->owner;
- }
+ if (rtc->id == 0)
+ proc_create_data("driver/rtc", 0, NULL, &rtc_proc_fops, rtc);
}
void rtc_proc_del_device(struct rtc_device *rtc)
dasd_proc_root_entry = proc_mkdir("dasd", NULL);
if (!dasd_proc_root_entry)
goto out_nodasd;
- dasd_proc_root_entry->owner = THIS_MODULE;
dasd_devices_entry = proc_create("devices",
S_IFREG | S_IRUGO | S_IWUSR,
dasd_proc_root_entry,
goto out_nostatistics;
dasd_statistics_entry->read_proc = dasd_statistics_read;
dasd_statistics_entry->write_proc = dasd_statistics_write;
- dasd_statistics_entry->owner = THIS_MODULE;
return 0;
out_nostatistics:
error = -ENOMEM;
goto out;
}
-
- p->owner = THIS_MODULE;
#endif /* CONFIG_SCSI_PROC_FS */
out:
if (!sht->proc_dir)
printk(KERN_ERR "%s: proc_mkdir failed for %s\n",
__func__, sht->proc_name);
- else
- sht->proc_dir->owner = sht->module;
}
mutex_unlock(&global_host_template_mutex);
}
}
p->write_proc = proc_scsi_write_proc;
- p->owner = sht->module;
}
/**
* calling pci_set_power_state()
*/
radeonfb_whack_power_state(rinfo, PCI_D2);
- pci_set_power_state(rinfo->pdev, PCI_D2);
+ __pci_complete_power_transition(rinfo->pdev, PCI_D2);
} else {
printk(KERN_DEBUG "radeonfb (%s): switching to D0 state...\n",
pci_name(rinfo->pdev));
if (viafb_entry) {
entry = create_proc_entry("dvp0", 0, *viafb_entry);
if (entry) {
- entry->owner = THIS_MODULE;
entry->read_proc = viafb_dvp0_proc_read;
entry->write_proc = viafb_dvp0_proc_write;
}
entry = create_proc_entry("dvp1", 0, *viafb_entry);
if (entry) {
- entry->owner = THIS_MODULE;
entry->read_proc = viafb_dvp1_proc_read;
entry->write_proc = viafb_dvp1_proc_write;
}
entry = create_proc_entry("dfph", 0, *viafb_entry);
if (entry) {
- entry->owner = THIS_MODULE;
entry->read_proc = viafb_dfph_proc_read;
entry->write_proc = viafb_dfph_proc_write;
}
entry = create_proc_entry("dfpl", 0, *viafb_entry);
if (entry) {
- entry->owner = THIS_MODULE;
entry->read_proc = viafb_dfpl_proc_read;
entry->write_proc = viafb_dfpl_proc_write;
}
viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
entry = create_proc_entry("vt1636", 0, *viafb_entry);
if (entry) {
- entry->owner = THIS_MODULE;
entry->read_proc = viafb_vt1636_proc_read;
entry->write_proc = viafb_vt1636_proc_write;
}
#ifdef DEBUG
/* For development, we want to crash whenever the ring is screwed. */
-#define BAD_RING(vq, fmt...) \
- do { dev_err(&vq->vq.vdev->dev, fmt); BUG(); } while(0)
-#define START_USE(vq) \
- do { if ((vq)->in_use) panic("in_use = %i\n", (vq)->in_use); (vq)->in_use = __LINE__; mb(); } while(0)
-#define END_USE(vq) \
- do { BUG_ON(!(vq)->in_use); (vq)->in_use = 0; mb(); } while(0)
+#define BAD_RING(_vq, fmt...) \
+ do { dev_err(&(_vq)->vq.vdev->dev, fmt); BUG(); } while(0)
+/* Caller is supposed to guarantee no reentry. */
+#define START_USE(_vq) \
+ do { \
+ if ((_vq)->in_use) \
+ panic("in_use = %i\n", (_vq)->in_use); \
+ (_vq)->in_use = __LINE__; \
+ mb(); \
+ } while(0)
+#define END_USE(_vq) \
+ do { BUG_ON(!(_vq)->in_use); (_vq)->in_use = 0; mb(); } while(0)
#else
-#define BAD_RING(vq, fmt...) \
- do { dev_err(&vq->vq.vdev->dev, fmt); (vq)->broken = true; } while(0)
+#define BAD_RING(_vq, fmt...) \
+ do { dev_err(&_vq->vq.vdev->dev, fmt); (_vq)->broken = true; } while(0)
#define START_USE(vq)
#define END_USE(vq)
#endif
* This function checks whether or not a SMBIOS/DMI record is
* the 64bit CRU info or not
*/
-static void __devinit dmi_find_cru(const struct dmi_header *dm)
+static void __devinit dmi_find_cru(const struct dmi_header *dm, void *dummy)
{
struct smbios_cru64_info *smbios_cru64_ptr;
unsigned long cru_physical_address;
{
cru_rom_addr = NULL;
- dmi_walk(dmi_find_cru);
+ dmi_walk(dmi_find_cru, NULL);
/* if cru_rom_addr has been set then we found a CRU service */
return ((cru_rom_addr != NULL) ? 0 : -ENODEV);
BUG_ON(!irqs_disabled());
- err = device_power_down(PMSG_SUSPEND);
- if (err) {
- printk(KERN_ERR "xen_suspend: device_power_down failed: %d\n",
- err);
- return err;
- }
err = sysdev_suspend(PMSG_SUSPEND);
if (err) {
printk(KERN_ERR "xen_suspend: sysdev_suspend failed: %d\n",
xen_mm_unpin_all();
sysdev_resume();
- device_power_up(PMSG_RESUME);
if (!*cancelled) {
xen_irq_resume();
/* XXX use normal device tree? */
xenbus_suspend();
+ err = device_power_down(PMSG_SUSPEND);
+ if (err) {
+ printk(KERN_ERR "device_power_down failed: %d\n", err);
+ goto resume_devices;
+ }
+
err = stop_machine(xen_suspend, &cancelled, cpumask_of(0));
if (err) {
printk(KERN_ERR "failed to start xen_suspend: %d\n", err);
} else
xenbus_suspend_cancel();
+ device_power_up(PMSG_RESUME);
+
+resume_devices:
device_resume(PMSG_RESUME);
/* Make sure timer events get retriggered on all CPUs */
proc_afs = proc_mkdir("fs/afs", NULL);
if (!proc_afs)
goto error_dir;
- proc_afs->owner = THIS_MODULE;
p = proc_create("cells", 0, proc_afs, &afs_proc_cells_fops);
if (!p)
if (proc_fs_cifs == NULL)
return;
- proc_fs_cifs->owner = THIS_MODULE;
proc_create("DebugData", 0, proc_fs_cifs, &cifs_debug_data_proc_fops);
#ifdef CONFIG_CIFS_STATS
if (!(base = proc_mkdir("fs/jfs", NULL)))
return;
- base->owner = THIS_MODULE;
for (i = 0; i < NPROCENT; i++)
proc_create(Entries[i].name, 0, base, Entries[i].proc_fops);
if (!proc_fs_nfs)
goto error_0;
- proc_fs_nfs->owner = THIS_MODULE;
-
/* a file of servers with which we're dealing */
p = proc_create("servers", S_IFREG|S_IRUGO,
proc_fs_nfs, &nfs_server_list_fops);
#define PROC_BLOCK_SIZE (PAGE_SIZE - 1024)
static ssize_t
-proc_file_read(struct file *file, char __user *buf, size_t nbytes,
+__proc_file_read(struct file *file, char __user *buf, size_t nbytes,
loff_t *ppos)
{
struct inode * inode = file->f_path.dentry->d_inode;
return retval;
}
+static ssize_t
+proc_file_read(struct file *file, char __user *buf, size_t nbytes,
+ loff_t *ppos)
+{
+ struct proc_dir_entry *pde = PDE(file->f_path.dentry->d_inode);
+ ssize_t rv = -EIO;
+
+ spin_lock(&pde->pde_unload_lock);
+ if (!pde->proc_fops) {
+ spin_unlock(&pde->pde_unload_lock);
+ return rv;
+ }
+ pde->pde_users++;
+ spin_unlock(&pde->pde_unload_lock);
+
+ rv = __proc_file_read(file, buf, nbytes, ppos);
+
+ pde_users_dec(pde);
+ return rv;
+}
+
static ssize_t
proc_file_write(struct file *file, const char __user *buffer,
size_t count, loff_t *ppos)
{
- struct inode *inode = file->f_path.dentry->d_inode;
- struct proc_dir_entry * dp;
-
- dp = PDE(inode);
-
- if (!dp->write_proc)
- return -EIO;
+ struct proc_dir_entry *pde = PDE(file->f_path.dentry->d_inode);
+ ssize_t rv = -EIO;
+
+ if (pde->write_proc) {
+ spin_lock(&pde->pde_unload_lock);
+ if (!pde->proc_fops) {
+ spin_unlock(&pde->pde_unload_lock);
+ return rv;
+ }
+ pde->pde_users++;
+ spin_unlock(&pde->pde_unload_lock);
- /* FIXME: does this routine need ppos? probably... */
- return dp->write_proc(file, buffer, count, dp->data);
+ /* FIXME: does this routine need ppos? probably... */
+ rv = pde->write_proc(file, buffer, count, pde->data);
+ pde_users_dec(pde);
+ }
+ return rv;
}
/*
* Return an inode number between PROC_DYNAMIC_FIRST and
* 0xffffffff, or zero on failure.
+ *
+ * Current inode allocations in the proc-fs (hex-numbers):
+ *
+ * 00000000 reserved
+ * 00000001-00000fff static entries (goners)
+ * 001 root-ino
+ *
+ * 00001000-00001fff unused
+ * 0001xxxx-7fffxxxx pid-dir entries for pid 1-7fff
+ * 80000000-efffffff unused
+ * f0000000-ffffffff dynamic entries
+ *
+ * Goal:
+ * Once we split the thing into several virtual filesystems,
+ * we will get rid of magical ranges (and this comment, BTW).
*/
static unsigned int get_inode_number(void)
{
+++ /dev/null
-Current inode allocations in the proc-fs (hex-numbers):
-
- 00000000 reserved
- 00000001-00000fff static entries (goners)
- 001 root-ino
-
- 00001000-00001fff unused
- 0001xxxx-7fffxxxx pid-dir entries for pid 1-7fff
- 80000000-efffffff unused
- f0000000-ffffffff dynamic entries
-
-Goal:
- a) once we'll split the thing into several virtual filesystems we
- will get rid of magical ranges (and this file, BTW).
/* Let go of any associated proc directory entry */
de = PROC_I(inode)->pde;
- if (de) {
- if (de->owner)
- module_put(de->owner);
+ if (de)
de_put(de);
- }
if (PROC_I(inode)->sysctl)
sysctl_head_put(PROC_I(inode)->sysctl);
clear_inode(inode);
complete(pde->pde_unload_completion);
}
-static void pde_users_dec(struct proc_dir_entry *pde)
+void pde_users_dec(struct proc_dir_entry *pde)
{
spin_lock(&pde->pde_unload_lock);
__pde_users_dec(pde);
{
struct inode * inode;
- if (!try_module_get(de->owner))
- goto out_mod;
-
inode = iget_locked(sb, ino);
if (!inode)
- goto out_ino;
+ return NULL;
if (inode->i_state & I_NEW) {
inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
PROC_I(inode)->fd = 0;
}
}
unlock_new_inode(inode);
- } else {
- module_put(de->owner);
+ } else
de_put(de);
- }
return inode;
-
-out_ino:
- module_put(de->owner);
-out_mod:
- return NULL;
}
int proc_fill_super(struct super_block *s)
int (*release)(struct inode *, struct file *);
struct list_head lh;
};
+void pde_users_dec(struct proc_dir_entry *pde);
if (!ent)
return;
ent->read_proc = driver->ops->read_proc;
- ent->owner = driver->owner;
ent->data = driver;
driver->proc_entry = ent;
goto out_pages;
}
- pm.out = (u64 *)buf;
- pm.end = (u64 *)(buf + count);
+ pm.out = (u64 __user *)buf;
+ pm.end = (u64 __user *)(buf + count);
pagemap_walk.pmd_entry = pagemap_pte_range;
pagemap_walk.pte_hole = pagemap_pte_hole;
if (ret == PM_END_OF_BUFFER)
ret = 0;
/* don't need mmap_sem for these, but this looks cleaner */
- *ppos += (char *)pm.out - buf;
+ *ppos += (char __user *)pm.out - buf;
if (!ret)
- ret = (char *)pm.out - buf;
+ ret = (char __user *)pm.out - buf;
out_pages:
for (; pagecount; pagecount--) {
+#include <linux/fs.h>
#include <linux/init.h>
#include <linux/proc_fs.h>
#include <linux/sched.h>
+#include <linux/seq_file.h>
#include <linux/time.h>
#include <asm/cputime.h>
-static int proc_calc_metrics(char *page, char **start, off_t off,
- int count, int *eof, int len)
-{
- if (len <= off + count)
- *eof = 1;
- *start = page + off;
- len -= off;
- if (len > count)
- len = count;
- if (len < 0)
- len = 0;
- return len;
-}
-
-static int uptime_read_proc(char *page, char **start, off_t off, int count,
- int *eof, void *data)
+static int uptime_proc_show(struct seq_file *m, void *v)
{
struct timespec uptime;
struct timespec idle;
- int len;
cputime_t idletime = cputime_add(init_task.utime, init_task.stime);
do_posix_clock_monotonic_gettime(&uptime);
monotonic_to_bootbased(&uptime);
cputime_to_timespec(idletime, &idle);
- len = sprintf(page, "%lu.%02lu %lu.%02lu\n",
+ seq_printf(m, "%lu.%02lu %lu.%02lu\n",
(unsigned long) uptime.tv_sec,
(uptime.tv_nsec / (NSEC_PER_SEC / 100)),
(unsigned long) idle.tv_sec,
(idle.tv_nsec / (NSEC_PER_SEC / 100)));
- return proc_calc_metrics(page, start, off, count, eof, len);
+ return 0;
}
+static int uptime_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, uptime_proc_show, NULL);
+}
+
+static const struct file_operations uptime_proc_fops = {
+ .open = uptime_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
static int __init proc_uptime_init(void)
{
- create_proc_read_entry("uptime", 0, NULL, uptime_read_proc, NULL);
+ proc_create("uptime", 0, NULL, &uptime_proc_fops);
return 0;
}
module_init(proc_uptime_init);
spin_lock_init(&__PINFO(sb).lock);
REISERFS_SB(sb)->procdir = proc_mkdir(b, proc_info_root);
if (REISERFS_SB(sb)->procdir) {
- REISERFS_SB(sb)->procdir->owner = THIS_MODULE;
REISERFS_SB(sb)->procdir->data = sb;
add_file(sb, "version", show_version);
add_file(sb, "super", show_super);
{
if (proc_info_root == NULL) {
proc_info_root = proc_mkdir(proc_info_root_name, NULL);
- if (proc_info_root) {
- proc_info_root->owner = THIS_MODULE;
- } else {
+ if (!proc_info_root) {
reiserfs_warning(NULL, "cannot create /proc/%s",
proc_info_root_name);
return 1;
/* Helpers for inode ops. We do this so that we don't have all the VFS
* overhead and also for proper i_mutex annotation.
* dir->i_mutex must be held for all of them. */
+#ifdef CONFIG_REISERFS_FS_XATTR
static int xattr_create(struct inode *dir, struct dentry *dentry, int mode)
{
BUG_ON(!mutex_is_locked(&dir->i_mutex));
vfs_dq_init(dir);
return dir->i_op->create(dir, dentry, mode, NULL);
}
+#endif
static int xattr_mkdir(struct inode *dir, struct dentry *dentry, int mode)
{
}
EXPORT_SYMBOL(seq_bitmap);
-int seq_bitmap_list(struct seq_file *m, unsigned long *bits,
+int seq_bitmap_list(struct seq_file *m, const unsigned long *bits,
unsigned int nr_bits)
{
if (m->count < m->size) {
#ifndef cpumask_of_node
#define cpumask_of_node(node) ((void)node, cpu_online_mask)
#endif
-#ifndef node_to_first_cpu
-#define node_to_first_cpu(node) ((void)(node),0)
-#endif
#ifndef pcibus_to_node
#define pcibus_to_node(bus) ((void)(bus), -1)
#endif
-#ifndef pcibus_to_cpumask
-#define pcibus_to_cpumask(bus) (pcibus_to_node(bus) == -1 ? \
- CPU_MASK_ALL : \
- node_to_cpumask(pcibus_to_node(bus)) \
- )
-#endif
-
#ifndef cpumask_of_pcibus
#define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \
cpu_all_mask : \
static inline void cpuset_cpus_allowed(struct task_struct *p,
struct cpumask *mask)
{
- *mask = cpu_possible_map;
+ cpumask_copy(mask, cpu_possible_mask);
}
static inline void cpuset_cpus_allowed_locked(struct task_struct *p,
struct cpumask *mask)
{
- *mask = cpu_possible_map;
+ cpumask_copy(mask, cpu_possible_mask);
}
static inline nodemask_t cpuset_mems_allowed(struct task_struct *p)
extern int dmi_name_in_vendors(const char *str);
extern int dmi_name_in_serial(const char *str);
extern int dmi_available;
-extern int dmi_walk(void (*decode)(const struct dmi_header *));
+extern int dmi_walk(void (*decode)(const struct dmi_header *, void *),
+ void *private_data);
extern bool dmi_match(enum dmi_field f, const char *str);
#else
static inline int dmi_name_in_vendors(const char *s) { return 0; }
static inline int dmi_name_in_serial(const char *s) { return 0; }
#define dmi_available 0
-static inline int dmi_walk(void (*decode)(const struct dmi_header *))
- { return -1; }
+static inline int dmi_walk(void (*decode)(const struct dmi_header *, void *),
+ void *private_data) { return -1; }
static inline bool dmi_match(enum dmi_field f, const char *str)
{ return false; }
static inline const struct dmi_system_id *
extern void disable_irq(unsigned int irq);
extern void enable_irq(unsigned int irq);
+/* The following three functions are for the core kernel use only. */
+extern void suspend_device_irqs(void);
+extern void resume_device_irqs(void);
+#ifdef CONFIG_PM_SLEEP
+extern int check_wakeup_irqs(void);
+#else
+static inline int check_wakeup_irqs(void) { return 0; }
+#endif
+
#if defined(CONFIG_SMP) && defined(CONFIG_GENERIC_HARDIRQS)
extern cpumask_var_t irq_default_affinity;
automatically be dstroyed when the interface is destroyed. */
int ipmi_smi_add_proc_entry(ipmi_smi_t smi, char *name,
read_proc_t *read_proc,
- void *data, struct module *owner);
+ void *data);
#endif /* __LINUX_IPMI_SMI_H */
#define IRQ_SPURIOUS_DISABLED 0x00800000 /* IRQ was disabled by the spurious trap */
#define IRQ_MOVE_PCNTXT 0x01000000 /* IRQ migration from process context */
#define IRQ_AFFINITY_SET 0x02000000 /* IRQ affinity was set from userspace*/
+#define IRQ_SUSPENDED 0x04000000 /* IRQ has gone through suspend sequence */
#ifdef CONFIG_IRQ_PER_CPU
# define CHECK_IRQ_PER_CPU(var) ((var) & IRQ_PER_CPU)
((unsigned char *)&addr)[3]
#define NIPQUAD_FMT "%u.%u.%u.%u"
-#if defined(__LITTLE_ENDIAN)
-#define HIPQUAD(addr) \
- ((unsigned char *)&addr)[3], \
- ((unsigned char *)&addr)[2], \
- ((unsigned char *)&addr)[1], \
- ((unsigned char *)&addr)[0]
-#elif defined(__BIG_ENDIAN)
-#define HIPQUAD NIPQUAD
-#else
-#error "Please fix asm/byteorder.h"
-#endif /* __LITTLE_ENDIAN */
-
/*
* min()/max()/clamp() macros that also do
* strict type-checking.. See the
#include <linux/stacktrace.h>
/*
- * Lock-class usage-state bits:
+ * We'd rather not expose kernel/lockdep_states.h this wide, but we do need
+ * the total number of states... :-(
*/
-enum lock_usage_bit
-{
- LOCK_USED = 0,
- LOCK_USED_IN_HARDIRQ,
- LOCK_USED_IN_SOFTIRQ,
- LOCK_ENABLED_SOFTIRQS,
- LOCK_ENABLED_HARDIRQS,
- LOCK_USED_IN_HARDIRQ_READ,
- LOCK_USED_IN_SOFTIRQ_READ,
- LOCK_ENABLED_SOFTIRQS_READ,
- LOCK_ENABLED_HARDIRQS_READ,
- LOCK_USAGE_STATES
-};
-
-/*
- * Usage-state bitmasks:
- */
-#define LOCKF_USED (1 << LOCK_USED)
-#define LOCKF_USED_IN_HARDIRQ (1 << LOCK_USED_IN_HARDIRQ)
-#define LOCKF_USED_IN_SOFTIRQ (1 << LOCK_USED_IN_SOFTIRQ)
-#define LOCKF_ENABLED_HARDIRQS (1 << LOCK_ENABLED_HARDIRQS)
-#define LOCKF_ENABLED_SOFTIRQS (1 << LOCK_ENABLED_SOFTIRQS)
-
-#define LOCKF_ENABLED_IRQS (LOCKF_ENABLED_HARDIRQS | LOCKF_ENABLED_SOFTIRQS)
-#define LOCKF_USED_IN_IRQ (LOCKF_USED_IN_HARDIRQ | LOCKF_USED_IN_SOFTIRQ)
-
-#define LOCKF_USED_IN_HARDIRQ_READ (1 << LOCK_USED_IN_HARDIRQ_READ)
-#define LOCKF_USED_IN_SOFTIRQ_READ (1 << LOCK_USED_IN_SOFTIRQ_READ)
-#define LOCKF_ENABLED_HARDIRQS_READ (1 << LOCK_ENABLED_HARDIRQS_READ)
-#define LOCKF_ENABLED_SOFTIRQS_READ (1 << LOCK_ENABLED_SOFTIRQS_READ)
-
-#define LOCKF_ENABLED_IRQS_READ \
- (LOCKF_ENABLED_HARDIRQS_READ | LOCKF_ENABLED_SOFTIRQS_READ)
-#define LOCKF_USED_IN_IRQ_READ \
- (LOCKF_USED_IN_HARDIRQ_READ | LOCKF_USED_IN_SOFTIRQ_READ)
+#define XXX_LOCK_USAGE_STATES (1+3*4)
#define MAX_LOCKDEP_SUBCLASSES 8UL
* IRQ/softirq usage tracking bits:
*/
unsigned long usage_mask;
- struct stack_trace usage_traces[LOCK_USAGE_STATES];
+ struct stack_trace usage_traces[XXX_LOCK_USAGE_STATES];
/*
* These fields represent a directed graph of lock dependencies,
lock_set_class(lock, lock->name, lock->key, subclass, ip);
}
-# define INIT_LOCKDEP .lockdep_recursion = 0,
+extern void lockdep_set_current_reclaim_state(gfp_t gfp_mask);
+extern void lockdep_clear_current_reclaim_state(void);
+extern void lockdep_trace_alloc(gfp_t mask);
+
+# define INIT_LOCKDEP .lockdep_recursion = 0, .lockdep_reclaim_gfp = 0,
#define lockdep_depth(tsk) (debug_locks ? (tsk)->lockdep_depth : 0)
# define lock_release(l, n, i) do { } while (0)
# define lock_set_class(l, n, k, s, i) do { } while (0)
# define lock_set_subclass(l, s, i) do { } while (0)
+# define lockdep_set_current_reclaim_state(g) do { } while (0)
+# define lockdep_clear_current_reclaim_state() do { } while (0)
+# define lockdep_trace_alloc(g) do { } while (0)
# define lockdep_init() do { } while (0)
# define lockdep_info() do { } while (0)
# define lockdep_init_map(lock, name, key, sub) \
atomic_t count;
spinlock_t wait_lock;
struct list_head wait_list;
-#ifdef CONFIG_DEBUG_MUTEXES
+#if defined(CONFIG_DEBUG_MUTEXES) || defined(CONFIG_SMP)
struct thread_info *owner;
+#endif
+#ifdef CONFIG_DEBUG_MUTEXES
const char *name;
void *magic;
#endif
struct list_head list;
struct task_struct *task;
#ifdef CONFIG_DEBUG_MUTEXES
- struct mutex *lock;
void *magic;
#endif
};
const char *name;
void (*rx_hook)(struct netpoll *, int, char *, int);
- u32 local_ip, remote_ip;
+ __be32 local_ip, remote_ip;
u16 local_port, remote_port;
u8 remote_mac[ETH_ALEN];
};
/* Power management related routines */
int pci_save_state(struct pci_dev *dev);
int pci_restore_state(struct pci_dev *dev);
+int __pci_complete_power_transition(struct pci_dev *dev, pci_power_t state);
int pci_set_power_state(struct pci_dev *dev, pci_power_t state);
pci_power_t pci_choose_state(struct pci_dev *dev, pm_message_t state);
bool pci_pme_capable(struct pci_dev *dev, pci_power_t state);
* while parent/subdir create the directory structure (every
* /proc file has a parent, but "subdir" is NULL for all
* non-directory entries).
- *
- * "owner" is used to protect module
- * from unloading while proc_dir_entry is in use
*/
typedef int (read_proc_t)(char *page, char **start, off_t off,
* somewhere.
*/
const struct file_operations *proc_fops;
- struct module *owner;
struct proc_dir_entry *next, *parent, *subdir;
void *data;
read_proc_t *read_proc;
}
static inline int
-reiserfs_inherit_default_acl(const struct inode *dir, struct dentry *dentry,
+reiserfs_inherit_default_acl(struct reiserfs_transaction_handle *th,
+ const struct inode *dir, struct dentry *dentry,
struct inode *inode)
{
return 0;
extern signed long schedule_timeout_interruptible(signed long timeout);
extern signed long schedule_timeout_killable(signed long timeout);
extern signed long schedule_timeout_uninterruptible(signed long timeout);
+asmlinkage void __schedule(void);
asmlinkage void schedule(void);
+extern int mutex_spin_on_owner(struct mutex *lock, struct thread_info *owner);
struct nsproxy;
struct user_namespace;
int lockdep_depth;
unsigned int lockdep_recursion;
struct held_lock held_locks[MAX_LOCK_DEPTH];
+ gfp_t lockdep_reclaim_gfp;
#endif
/* journalling filesystem info */
unsigned int nr_bits);
static inline int seq_cpumask(struct seq_file *m, const struct cpumask *mask)
{
- return seq_bitmap(m, mask->bits, nr_cpu_ids);
+ return seq_bitmap(m, cpumask_bits(mask), nr_cpu_ids);
}
static inline int seq_nodemask(struct seq_file *m, nodemask_t *mask)
return seq_bitmap(m, mask->bits, MAX_NUMNODES);
}
-int seq_bitmap_list(struct seq_file *m, unsigned long *bits,
+int seq_bitmap_list(struct seq_file *m, const unsigned long *bits,
unsigned int nr_bits);
-static inline int seq_cpumask_list(struct seq_file *m, cpumask_t *mask)
+static inline int seq_cpumask_list(struct seq_file *m,
+ const struct cpumask *mask)
{
- return seq_bitmap_list(m, mask->bits, NR_CPUS);
+ return seq_bitmap_list(m, cpumask_bits(mask), nr_cpu_ids);
}
static inline int seq_nodemask_list(struct seq_file *m, nodemask_t *mask)
* @software: generate software time stamp
* @in_progress: device driver is going to provide
* hardware time stamp
+ * @flags: all shared_tx flags
*
* These flags are attached to packets as part of the
* &skb_shared_info. Use skb_tx() to get a pointer.
#include <linux/ktime.h>
#include <linux/stddef.h>
#include <linux/debugobjects.h>
+#include <linux/stringify.h>
struct tvec_base;
char start_comm[16];
int start_pid;
#endif
+#ifdef CONFIG_LOCKDEP
+ struct lockdep_map lockdep_map;
+#endif
};
extern struct tvec_base boot_tvec_bases;
+#ifdef CONFIG_LOCKDEP
+/*
+ * NB: because we have to copy the lockdep_map, setting the lockdep_map key
+ * (second argument) here is required, otherwise it could be initialised to
+ * the copy of the lockdep_map later! We use the pointer to and the string
+ * "<file>:<line>" as the key resp. the name of the lockdep_map.
+ */
+#define __TIMER_LOCKDEP_MAP_INITIALIZER(_kn) \
+ .lockdep_map = STATIC_LOCKDEP_MAP_INIT(_kn, &_kn),
+#else
+#define __TIMER_LOCKDEP_MAP_INITIALIZER(_kn)
+#endif
+
#define TIMER_INITIALIZER(_function, _expires, _data) { \
.entry = { .prev = TIMER_ENTRY_STATIC }, \
.function = (_function), \
.expires = (_expires), \
.data = (_data), \
.base = &boot_tvec_bases, \
+ __TIMER_LOCKDEP_MAP_INITIALIZER( \
+ __FILE__ ":" __stringify(__LINE__)) \
}
#define DEFINE_TIMER(_name, _function, _expires, _data) \
struct timer_list _name = \
TIMER_INITIALIZER(_function, _expires, _data)
-void init_timer(struct timer_list *timer);
-void init_timer_deferrable(struct timer_list *timer);
+void init_timer_key(struct timer_list *timer,
+ const char *name,
+ struct lock_class_key *key);
+void init_timer_deferrable_key(struct timer_list *timer,
+ const char *name,
+ struct lock_class_key *key);
+
+#ifdef CONFIG_LOCKDEP
+#define init_timer(timer) \
+ do { \
+ static struct lock_class_key __key; \
+ init_timer_key((timer), #timer, &__key); \
+ } while (0)
+
+#define init_timer_deferrable(timer) \
+ do { \
+ static struct lock_class_key __key; \
+ init_timer_deferrable_key((timer), #timer, &__key); \
+ } while (0)
+
+#define init_timer_on_stack(timer) \
+ do { \
+ static struct lock_class_key __key; \
+ init_timer_on_stack_key((timer), #timer, &__key); \
+ } while (0)
+
+#define setup_timer(timer, fn, data) \
+ do { \
+ static struct lock_class_key __key; \
+ setup_timer_key((timer), #timer, &__key, (fn), (data));\
+ } while (0)
+
+#define setup_timer_on_stack(timer, fn, data) \
+ do { \
+ static struct lock_class_key __key; \
+ setup_timer_on_stack_key((timer), #timer, &__key, \
+ (fn), (data)); \
+ } while (0)
+#else
+#define init_timer(timer)\
+ init_timer_key((timer), NULL, NULL)
+#define init_timer_deferrable(timer)\
+ init_timer_deferrable_key((timer), NULL, NULL)
+#define init_timer_on_stack(timer)\
+ init_timer_on_stack_key((timer), NULL, NULL)
+#define setup_timer(timer, fn, data)\
+ setup_timer_key((timer), NULL, NULL, (fn), (data))
+#define setup_timer_on_stack(timer, fn, data)\
+ setup_timer_on_stack_key((timer), NULL, NULL, (fn), (data))
+#endif
#ifdef CONFIG_DEBUG_OBJECTS_TIMERS
-extern void init_timer_on_stack(struct timer_list *timer);
+extern void init_timer_on_stack_key(struct timer_list *timer,
+ const char *name,
+ struct lock_class_key *key);
extern void destroy_timer_on_stack(struct timer_list *timer);
#else
static inline void destroy_timer_on_stack(struct timer_list *timer) { }
-static inline void init_timer_on_stack(struct timer_list *timer)
+static inline void init_timer_on_stack_key(struct timer_list *timer,
+ const char *name,
+ struct lock_class_key *key)
{
- init_timer(timer);
+ init_timer_key(timer, name, key);
}
#endif
-static inline void setup_timer(struct timer_list * timer,
+static inline void setup_timer_key(struct timer_list * timer,
+ const char *name,
+ struct lock_class_key *key,
void (*function)(unsigned long),
unsigned long data)
{
timer->function = function;
timer->data = data;
- init_timer(timer);
+ init_timer_key(timer, name, key);
}
-static inline void setup_timer_on_stack(struct timer_list *timer,
+static inline void setup_timer_on_stack_key(struct timer_list *timer,
+ const char *name,
+ struct lock_class_key *key,
void (*function)(unsigned long),
unsigned long data)
{
timer->function = function;
timer->data = data;
- init_timer_on_stack(timer);
+ init_timer_on_stack_key(timer, name, key);
}
/**
* Set up the current CPU as possible to migrate to.
* The other ones will be done by cpu_up/cpu_down()
*/
- cpu = smp_processor_id();
- cpu_set(cpu, cpu_active_map);
+ set_cpu_active(smp_processor_id(), true);
/* FIXME: This should be done in userspace --RR */
for_each_present_cpu(cpu) {
/*
* init can run on any cpu.
*/
- set_cpus_allowed_ptr(current, CPU_MASK_ALL_PTR);
+ set_cpus_allowed_ptr(current, cpu_all_mask);
/*
* Tell the world that we're going to be the grim
* reaper of innocent orphaned children.
goto out;
}
- cpu_clear(cpu, cpu_active_map);
+ set_cpu_active(cpu, false);
/*
* Make sure the all cpus did the reschedule and are not
err = _cpu_down(cpu, 0);
if (cpu_online(cpu))
- cpu_set(cpu, cpu_active_map);
+ set_cpu_active(cpu, true);
out:
cpu_maps_update_done();
goto out_notify;
BUG_ON(!cpu_online(cpu));
- cpu_set(cpu, cpu_active_map);
+ set_cpu_active(cpu, true);
/* Now call notifier in preparation. */
raw_notifier_call_chain(&cpu_chain, CPU_ONLINE | mod, hcpu);
mm->free_area_cache = oldmm->mmap_base;
mm->cached_hole_size = ~0UL;
mm->map_count = 0;
- cpus_clear(mm->cpu_vm_mask);
+ cpumask_clear(mm_cpumask(mm));
mm->mm_rb = RB_ROOT;
rb_link = &mm->mm_rb.rb_node;
rb_parent = NULL;
obj-$(CONFIG_PROC_FS) += proc.o
obj-$(CONFIG_GENERIC_PENDING_IRQ) += migration.o
obj-$(CONFIG_NUMA_MIGRATE_IRQ_DESC) += numa_migrate.o
+obj-$(CONFIG_PM_SLEEP) += pm.o
extern int __irq_set_trigger(struct irq_desc *desc, unsigned int irq,
unsigned long flags);
+extern void __disable_irq(struct irq_desc *desc, unsigned int irq, bool susp);
+extern void __enable_irq(struct irq_desc *desc, unsigned int irq, bool resume);
extern struct lock_class_key irq_desc_lock_class;
extern void init_kstat_irqs(struct irq_desc *desc, int cpu, int nr);
}
#endif
+void __disable_irq(struct irq_desc *desc, unsigned int irq, bool suspend)
+{
+ if (suspend) {
+ if (!desc->action || (desc->action->flags & IRQF_TIMER))
+ return;
+ desc->status |= IRQ_SUSPENDED;
+ }
+
+ if (!desc->depth++) {
+ desc->status |= IRQ_DISABLED;
+ desc->chip->disable(irq);
+ }
+}
+
/**
* disable_irq_nosync - disable an irq without waiting
* @irq: Interrupt to disable
return;
spin_lock_irqsave(&desc->lock, flags);
- if (!desc->depth++) {
- desc->status |= IRQ_DISABLED;
- desc->chip->disable(irq);
- }
+ __disable_irq(desc, irq, false);
spin_unlock_irqrestore(&desc->lock, flags);
}
EXPORT_SYMBOL(disable_irq_nosync);
}
EXPORT_SYMBOL(disable_irq);
-static void __enable_irq(struct irq_desc *desc, unsigned int irq)
+void __enable_irq(struct irq_desc *desc, unsigned int irq, bool resume)
{
+ if (resume)
+ desc->status &= ~IRQ_SUSPENDED;
+
switch (desc->depth) {
case 0:
+ err_out:
WARN(1, KERN_WARNING "Unbalanced enable for IRQ %d\n", irq);
break;
case 1: {
unsigned int status = desc->status & ~IRQ_DISABLED;
+ if (desc->status & IRQ_SUSPENDED)
+ goto err_out;
/* Prevent probing on this irq: */
desc->status = status | IRQ_NOPROBE;
check_irq_resend(desc, irq);
return;
spin_lock_irqsave(&desc->lock, flags);
- __enable_irq(desc, irq);
+ __enable_irq(desc, irq, false);
spin_unlock_irqrestore(&desc->lock, flags);
}
EXPORT_SYMBOL(enable_irq);
*/
if (shared && (desc->status & IRQ_SPURIOUS_DISABLED)) {
desc->status &= ~IRQ_SPURIOUS_DISABLED;
- __enable_irq(desc, irq);
+ __enable_irq(desc, irq, false);
}
spin_unlock_irqrestore(&desc->lock, flags);
--- /dev/null
+/*
+ * linux/kernel/irq/pm.c
+ *
+ * Copyright (C) 2009 Rafael J. Wysocki <rjw@sisk.pl>, Novell Inc.
+ *
+ * This file contains power management functions related to interrupts.
+ */
+
+#include <linux/irq.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+
+#include "internals.h"
+
+/**
+ * suspend_device_irqs - disable all currently enabled interrupt lines
+ *
+ * During system-wide suspend or hibernation device interrupts need to be
+ * disabled at the chip level and this function is provided for this purpose.
+ * It disables all interrupt lines that are enabled at the moment and sets the
+ * IRQ_SUSPENDED flag for them.
+ */
+void suspend_device_irqs(void)
+{
+ struct irq_desc *desc;
+ int irq;
+
+ for_each_irq_desc(irq, desc) {
+ unsigned long flags;
+
+ spin_lock_irqsave(&desc->lock, flags);
+ __disable_irq(desc, irq, true);
+ spin_unlock_irqrestore(&desc->lock, flags);
+ }
+
+ for_each_irq_desc(irq, desc)
+ if (desc->status & IRQ_SUSPENDED)
+ synchronize_irq(irq);
+}
+EXPORT_SYMBOL_GPL(suspend_device_irqs);
+
+/**
+ * resume_device_irqs - enable interrupt lines disabled by suspend_device_irqs()
+ *
+ * Enable all interrupt lines previously disabled by suspend_device_irqs() that
+ * have the IRQ_SUSPENDED flag set.
+ */
+void resume_device_irqs(void)
+{
+ struct irq_desc *desc;
+ int irq;
+
+ for_each_irq_desc(irq, desc) {
+ unsigned long flags;
+
+ if (!(desc->status & IRQ_SUSPENDED))
+ continue;
+
+ spin_lock_irqsave(&desc->lock, flags);
+ __enable_irq(desc, irq, true);
+ spin_unlock_irqrestore(&desc->lock, flags);
+ }
+}
+EXPORT_SYMBOL_GPL(resume_device_irqs);
+
+/**
+ * check_wakeup_irqs - check if any wake-up interrupts are pending
+ */
+int check_wakeup_irqs(void)
+{
+ struct irq_desc *desc;
+ int irq;
+
+ for_each_irq_desc(irq, desc)
+ if ((desc->status & IRQ_WAKEUP) && (desc->status & IRQ_PENDING))
+ return -EBUSY;
+
+ return 0;
+}
error = device_suspend(PMSG_FREEZE);
if (error)
goto Resume_console;
- error = disable_nonboot_cpus();
- if (error)
- goto Resume_devices;
device_pm_lock();
- local_irq_disable();
/* At this point, device_suspend() has been called,
* but *not* device_power_down(). We *must*
* device_power_down() now. Otherwise, drivers for
*/
error = device_power_down(PMSG_FREEZE);
if (error)
- goto Enable_irqs;
-
+ goto Resume_devices;
+ error = disable_nonboot_cpus();
+ if (error)
+ goto Enable_cpus;
+ local_irq_disable();
/* Suspend system devices */
error = sysdev_suspend(PMSG_FREEZE);
if (error)
- goto Power_up_devices;
+ goto Enable_irqs;
} else
#endif
{
#ifdef CONFIG_KEXEC_JUMP
if (kexec_image->preserve_context) {
sysdev_resume();
- Power_up_devices:
- device_power_up(PMSG_RESTORE);
Enable_irqs:
local_irq_enable();
- device_pm_unlock();
+ Enable_cpus:
enable_nonboot_cpus();
+ device_power_up(PMSG_RESTORE);
Resume_devices:
+ device_pm_unlock();
device_resume(PMSG_RESTORE);
Resume_console:
resume_console();
}
/* We can run anywhere, unlike our parent keventd(). */
- set_cpus_allowed_ptr(current, CPU_MASK_ALL_PTR);
+ set_cpus_allowed_ptr(current, cpu_all_mask);
/*
* Our parent is keventd, which runs with elevated scheduling priority.
*/
sched_setscheduler(create->result, SCHED_NORMAL, ¶m);
set_user_nice(create->result, KTHREAD_NICE_LEVEL);
- set_cpus_allowed_ptr(create->result, CPU_MASK_ALL_PTR);
+ set_cpus_allowed_ptr(create->result, cpu_all_mask);
}
complete(&create->done);
}
set_task_comm(tsk, "kthreadd");
ignore_signals(tsk);
set_user_nice(tsk, KTHREAD_NICE_LEVEL);
- set_cpus_allowed_ptr(tsk, CPU_MASK_ALL_PTR);
+ set_cpus_allowed_ptr(tsk, cpu_all_mask);
current->flags |= PF_NOFREEZE | PF_FREEZER_NOSIG;
#include <linux/utsname.h>
#include <linux/hash.h>
#include <linux/ftrace.h>
+#include <linux/stringify.h>
#include <asm/sections.h>
#if VERBOSE
# define HARDIRQ_VERBOSE 1
# define SOFTIRQ_VERBOSE 1
+# define RECLAIM_VERBOSE 1
#else
# define HARDIRQ_VERBOSE 0
# define SOFTIRQ_VERBOSE 0
+# define RECLAIM_VERBOSE 0
#endif
-#if VERBOSE || HARDIRQ_VERBOSE || SOFTIRQ_VERBOSE
+#if VERBOSE || HARDIRQ_VERBOSE || SOFTIRQ_VERBOSE || RECLAIM_VERBOSE
/*
* Quick filtering for interesting events:
*/
* Locking printouts:
*/
+#define __USAGE(__STATE) \
+ [LOCK_USED_IN_##__STATE] = "IN-"__stringify(__STATE)"-W", \
+ [LOCK_ENABLED_##__STATE] = __stringify(__STATE)"-ON-W", \
+ [LOCK_USED_IN_##__STATE##_READ] = "IN-"__stringify(__STATE)"-R",\
+ [LOCK_ENABLED_##__STATE##_READ] = __stringify(__STATE)"-ON-R",
+
static const char *usage_str[] =
{
- [LOCK_USED] = "initial-use ",
- [LOCK_USED_IN_HARDIRQ] = "in-hardirq-W",
- [LOCK_USED_IN_SOFTIRQ] = "in-softirq-W",
- [LOCK_ENABLED_SOFTIRQS] = "softirq-on-W",
- [LOCK_ENABLED_HARDIRQS] = "hardirq-on-W",
- [LOCK_USED_IN_HARDIRQ_READ] = "in-hardirq-R",
- [LOCK_USED_IN_SOFTIRQ_READ] = "in-softirq-R",
- [LOCK_ENABLED_SOFTIRQS_READ] = "softirq-on-R",
- [LOCK_ENABLED_HARDIRQS_READ] = "hardirq-on-R",
+#define LOCKDEP_STATE(__STATE) __USAGE(__STATE)
+#include "lockdep_states.h"
+#undef LOCKDEP_STATE
+ [LOCK_USED] = "INITIAL USE",
};
const char * __get_key_name(struct lockdep_subclass_key *key, char *str)
return kallsyms_lookup((unsigned long)key, NULL, NULL, NULL, str);
}
-void
-get_usage_chars(struct lock_class *class, char *c1, char *c2, char *c3, char *c4)
+static inline unsigned long lock_flag(enum lock_usage_bit bit)
{
- *c1 = '.', *c2 = '.', *c3 = '.', *c4 = '.';
-
- if (class->usage_mask & LOCKF_USED_IN_HARDIRQ)
- *c1 = '+';
- else
- if (class->usage_mask & LOCKF_ENABLED_HARDIRQS)
- *c1 = '-';
+ return 1UL << bit;
+}
- if (class->usage_mask & LOCKF_USED_IN_SOFTIRQ)
- *c2 = '+';
- else
- if (class->usage_mask & LOCKF_ENABLED_SOFTIRQS)
- *c2 = '-';
+static char get_usage_char(struct lock_class *class, enum lock_usage_bit bit)
+{
+ char c = '.';
- if (class->usage_mask & LOCKF_ENABLED_HARDIRQS_READ)
- *c3 = '-';
- if (class->usage_mask & LOCKF_USED_IN_HARDIRQ_READ) {
- *c3 = '+';
- if (class->usage_mask & LOCKF_ENABLED_HARDIRQS_READ)
- *c3 = '?';
+ if (class->usage_mask & lock_flag(bit + 2))
+ c = '+';
+ if (class->usage_mask & lock_flag(bit)) {
+ c = '-';
+ if (class->usage_mask & lock_flag(bit + 2))
+ c = '?';
}
- if (class->usage_mask & LOCKF_ENABLED_SOFTIRQS_READ)
- *c4 = '-';
- if (class->usage_mask & LOCKF_USED_IN_SOFTIRQ_READ) {
- *c4 = '+';
- if (class->usage_mask & LOCKF_ENABLED_SOFTIRQS_READ)
- *c4 = '?';
- }
+ return c;
+}
+
+void get_usage_chars(struct lock_class *class, char usage[LOCK_USAGE_CHARS])
+{
+ int i = 0;
+
+#define LOCKDEP_STATE(__STATE) \
+ usage[i++] = get_usage_char(class, LOCK_USED_IN_##__STATE); \
+ usage[i++] = get_usage_char(class, LOCK_USED_IN_##__STATE##_READ);
+#include "lockdep_states.h"
+#undef LOCKDEP_STATE
+
+ usage[i] = '\0';
}
static void print_lock_name(struct lock_class *class)
{
- char str[KSYM_NAME_LEN], c1, c2, c3, c4;
+ char str[KSYM_NAME_LEN], usage[LOCK_USAGE_CHARS];
const char *name;
- get_usage_chars(class, &c1, &c2, &c3, &c4);
+ get_usage_chars(class, usage);
name = class->name;
if (!name) {
if (class->subclass)
printk("/%d", class->subclass);
}
- printk("){%c%c%c%c}", c1, c2, c3, c4);
+ printk("){%s}", usage);
}
static void print_lockdep_cache(struct lockdep_map *lock)
bit_backwards, bit_forwards, irqclass);
}
-static int
-check_prev_add_irq(struct task_struct *curr, struct held_lock *prev,
- struct held_lock *next)
+static const char *state_names[] = {
+#define LOCKDEP_STATE(__STATE) \
+ __stringify(__STATE),
+#include "lockdep_states.h"
+#undef LOCKDEP_STATE
+};
+
+static const char *state_rnames[] = {
+#define LOCKDEP_STATE(__STATE) \
+ __stringify(__STATE)"-READ",
+#include "lockdep_states.h"
+#undef LOCKDEP_STATE
+};
+
+static inline const char *state_name(enum lock_usage_bit bit)
+{
+ return (bit & 1) ? state_rnames[bit >> 2] : state_names[bit >> 2];
+}
+
+static int exclusive_bit(int new_bit)
+{
+ /*
+ * USED_IN
+ * USED_IN_READ
+ * ENABLED
+ * ENABLED_READ
+ *
+ * bit 0 - write/read
+ * bit 1 - used_in/enabled
+ * bit 2+ state
+ */
+
+ int state = new_bit & ~3;
+ int dir = new_bit & 2;
+
+ /*
+ * keep state, bit flip the direction and strip read.
+ */
+ return state | (dir ^ 2);
+}
+
+static int check_irq_usage(struct task_struct *curr, struct held_lock *prev,
+ struct held_lock *next, enum lock_usage_bit bit)
{
/*
* Prove that the new dependency does not connect a hardirq-safe
* the backwards-subgraph starting at <prev>, and the
* forwards-subgraph starting at <next>:
*/
- if (!check_usage(curr, prev, next, LOCK_USED_IN_HARDIRQ,
- LOCK_ENABLED_HARDIRQS, "hard"))
+ if (!check_usage(curr, prev, next, bit,
+ exclusive_bit(bit), state_name(bit)))
return 0;
+ bit++; /* _READ */
+
/*
* Prove that the new dependency does not connect a hardirq-safe-read
* lock with a hardirq-unsafe lock - to achieve this we search
* the backwards-subgraph starting at <prev>, and the
* forwards-subgraph starting at <next>:
*/
- if (!check_usage(curr, prev, next, LOCK_USED_IN_HARDIRQ_READ,
- LOCK_ENABLED_HARDIRQS, "hard-read"))
+ if (!check_usage(curr, prev, next, bit,
+ exclusive_bit(bit), state_name(bit)))
return 0;
- /*
- * Prove that the new dependency does not connect a softirq-safe
- * lock with a softirq-unsafe lock - to achieve this we search
- * the backwards-subgraph starting at <prev>, and the
- * forwards-subgraph starting at <next>:
- */
- if (!check_usage(curr, prev, next, LOCK_USED_IN_SOFTIRQ,
- LOCK_ENABLED_SOFTIRQS, "soft"))
- return 0;
- /*
- * Prove that the new dependency does not connect a softirq-safe-read
- * lock with a softirq-unsafe lock - to achieve this we search
- * the backwards-subgraph starting at <prev>, and the
- * forwards-subgraph starting at <next>:
- */
- if (!check_usage(curr, prev, next, LOCK_USED_IN_SOFTIRQ_READ,
- LOCK_ENABLED_SOFTIRQS, "soft"))
+ return 1;
+}
+
+static int
+check_prev_add_irq(struct task_struct *curr, struct held_lock *prev,
+ struct held_lock *next)
+{
+#define LOCKDEP_STATE(__STATE) \
+ if (!check_irq_usage(curr, prev, next, LOCK_USED_IN_##__STATE)) \
return 0;
+#include "lockdep_states.h"
+#undef LOCKDEP_STATE
return 1;
}
print_ip_sym(curr->softirq_disable_ip);
}
-static int hardirq_verbose(struct lock_class *class)
+static int HARDIRQ_verbose(struct lock_class *class)
{
#if HARDIRQ_VERBOSE
return class_filter(class);
return 0;
}
-static int softirq_verbose(struct lock_class *class)
+static int SOFTIRQ_verbose(struct lock_class *class)
{
#if SOFTIRQ_VERBOSE
return class_filter(class);
return 0;
}
+static int RECLAIM_FS_verbose(struct lock_class *class)
+{
+#if RECLAIM_VERBOSE
+ return class_filter(class);
+#endif
+ return 0;
+}
+
#define STRICT_READ_CHECKS 1
-static int mark_lock_irq(struct task_struct *curr, struct held_lock *this,
- enum lock_usage_bit new_bit)
+static int (*state_verbose_f[])(struct lock_class *class) = {
+#define LOCKDEP_STATE(__STATE) \
+ __STATE##_verbose,
+#include "lockdep_states.h"
+#undef LOCKDEP_STATE
+};
+
+static inline int state_verbose(enum lock_usage_bit bit,
+ struct lock_class *class)
{
- int ret = 1;
+ return state_verbose_f[bit >> 2](class);
+}
- switch(new_bit) {
- case LOCK_USED_IN_HARDIRQ:
- if (!valid_state(curr, this, new_bit, LOCK_ENABLED_HARDIRQS))
- return 0;
- if (!valid_state(curr, this, new_bit,
- LOCK_ENABLED_HARDIRQS_READ))
- return 0;
- /*
- * just marked it hardirq-safe, check that this lock
- * took no hardirq-unsafe lock in the past:
- */
- if (!check_usage_forwards(curr, this,
- LOCK_ENABLED_HARDIRQS, "hard"))
- return 0;
-#if STRICT_READ_CHECKS
- /*
- * just marked it hardirq-safe, check that this lock
- * took no hardirq-unsafe-read lock in the past:
- */
- if (!check_usage_forwards(curr, this,
- LOCK_ENABLED_HARDIRQS_READ, "hard-read"))
- return 0;
-#endif
- if (hardirq_verbose(hlock_class(this)))
- ret = 2;
- break;
- case LOCK_USED_IN_SOFTIRQ:
- if (!valid_state(curr, this, new_bit, LOCK_ENABLED_SOFTIRQS))
- return 0;
- if (!valid_state(curr, this, new_bit,
- LOCK_ENABLED_SOFTIRQS_READ))
- return 0;
- /*
- * just marked it softirq-safe, check that this lock
- * took no softirq-unsafe lock in the past:
- */
- if (!check_usage_forwards(curr, this,
- LOCK_ENABLED_SOFTIRQS, "soft"))
- return 0;
-#if STRICT_READ_CHECKS
- /*
- * just marked it softirq-safe, check that this lock
- * took no softirq-unsafe-read lock in the past:
- */
- if (!check_usage_forwards(curr, this,
- LOCK_ENABLED_SOFTIRQS_READ, "soft-read"))
- return 0;
-#endif
- if (softirq_verbose(hlock_class(this)))
- ret = 2;
- break;
- case LOCK_USED_IN_HARDIRQ_READ:
- if (!valid_state(curr, this, new_bit, LOCK_ENABLED_HARDIRQS))
- return 0;
- /*
- * just marked it hardirq-read-safe, check that this lock
- * took no hardirq-unsafe lock in the past:
- */
- if (!check_usage_forwards(curr, this,
- LOCK_ENABLED_HARDIRQS, "hard"))
- return 0;
- if (hardirq_verbose(hlock_class(this)))
- ret = 2;
- break;
- case LOCK_USED_IN_SOFTIRQ_READ:
- if (!valid_state(curr, this, new_bit, LOCK_ENABLED_SOFTIRQS))
- return 0;
- /*
- * just marked it softirq-read-safe, check that this lock
- * took no softirq-unsafe lock in the past:
- */
- if (!check_usage_forwards(curr, this,
- LOCK_ENABLED_SOFTIRQS, "soft"))
- return 0;
- if (softirq_verbose(hlock_class(this)))
- ret = 2;
- break;
- case LOCK_ENABLED_HARDIRQS:
- if (!valid_state(curr, this, new_bit, LOCK_USED_IN_HARDIRQ))
- return 0;
- if (!valid_state(curr, this, new_bit,
- LOCK_USED_IN_HARDIRQ_READ))
- return 0;
- /*
- * just marked it hardirq-unsafe, check that no hardirq-safe
- * lock in the system ever took it in the past:
- */
- if (!check_usage_backwards(curr, this,
- LOCK_USED_IN_HARDIRQ, "hard"))
- return 0;
-#if STRICT_READ_CHECKS
- /*
- * just marked it hardirq-unsafe, check that no
- * hardirq-safe-read lock in the system ever took
- * it in the past:
- */
- if (!check_usage_backwards(curr, this,
- LOCK_USED_IN_HARDIRQ_READ, "hard-read"))
- return 0;
-#endif
- if (hardirq_verbose(hlock_class(this)))
- ret = 2;
- break;
- case LOCK_ENABLED_SOFTIRQS:
- if (!valid_state(curr, this, new_bit, LOCK_USED_IN_SOFTIRQ))
- return 0;
- if (!valid_state(curr, this, new_bit,
- LOCK_USED_IN_SOFTIRQ_READ))
- return 0;
- /*
- * just marked it softirq-unsafe, check that no softirq-safe
- * lock in the system ever took it in the past:
- */
- if (!check_usage_backwards(curr, this,
- LOCK_USED_IN_SOFTIRQ, "soft"))
- return 0;
-#if STRICT_READ_CHECKS
- /*
- * just marked it softirq-unsafe, check that no
- * softirq-safe-read lock in the system ever took
- * it in the past:
- */
- if (!check_usage_backwards(curr, this,
- LOCK_USED_IN_SOFTIRQ_READ, "soft-read"))
- return 0;
-#endif
- if (softirq_verbose(hlock_class(this)))
- ret = 2;
- break;
- case LOCK_ENABLED_HARDIRQS_READ:
- if (!valid_state(curr, this, new_bit, LOCK_USED_IN_HARDIRQ))
- return 0;
-#if STRICT_READ_CHECKS
- /*
- * just marked it hardirq-read-unsafe, check that no
- * hardirq-safe lock in the system ever took it in the past:
- */
- if (!check_usage_backwards(curr, this,
- LOCK_USED_IN_HARDIRQ, "hard"))
- return 0;
-#endif
- if (hardirq_verbose(hlock_class(this)))
- ret = 2;
- break;
- case LOCK_ENABLED_SOFTIRQS_READ:
- if (!valid_state(curr, this, new_bit, LOCK_USED_IN_SOFTIRQ))
+typedef int (*check_usage_f)(struct task_struct *, struct held_lock *,
+ enum lock_usage_bit bit, const char *name);
+
+static int
+mark_lock_irq(struct task_struct *curr, struct held_lock *this, int new_bit)
+{
+ int excl_bit = exclusive_bit(new_bit);
+ int read = new_bit & 1;
+ int dir = new_bit & 2;
+
+ /*
+ * mark USED_IN has to look forwards -- to ensure no dependency
+ * has ENABLED state, which would allow recursion deadlocks.
+ *
+ * mark ENABLED has to look backwards -- to ensure no dependee
+ * has USED_IN state, which, again, would allow recursion deadlocks.
+ */
+ check_usage_f usage = dir ?
+ check_usage_backwards : check_usage_forwards;
+
+ /*
+ * Validate that this particular lock does not have conflicting
+ * usage states.
+ */
+ if (!valid_state(curr, this, new_bit, excl_bit))
+ return 0;
+
+ /*
+ * Validate that the lock dependencies don't have conflicting usage
+ * states.
+ */
+ if ((!read || !dir || STRICT_READ_CHECKS) &&
+ !usage(curr, this, excl_bit, state_name(new_bit)))
+ return 0;
+
+ /*
+ * Check for read in write conflicts
+ */
+ if (!read) {
+ if (!valid_state(curr, this, new_bit, excl_bit + 1))
return 0;
-#if STRICT_READ_CHECKS
- /*
- * just marked it softirq-read-unsafe, check that no
- * softirq-safe lock in the system ever took it in the past:
- */
- if (!check_usage_backwards(curr, this,
- LOCK_USED_IN_SOFTIRQ, "soft"))
+
+ if (STRICT_READ_CHECKS &&
+ !usage(curr, this, excl_bit + 1,
+ state_name(new_bit + 1)))
return 0;
-#endif
- if (softirq_verbose(hlock_class(this)))
- ret = 2;
- break;
- default:
- WARN_ON(1);
- break;
}
- return ret;
+ if (state_verbose(new_bit, hlock_class(this)))
+ return 2;
+
+ return 1;
}
+enum mark_type {
+#define LOCKDEP_STATE(__STATE) __STATE,
+#include "lockdep_states.h"
+#undef LOCKDEP_STATE
+};
+
/*
* Mark all held locks with a usage bit:
*/
static int
-mark_held_locks(struct task_struct *curr, int hardirq)
+mark_held_locks(struct task_struct *curr, enum mark_type mark)
{
enum lock_usage_bit usage_bit;
struct held_lock *hlock;
for (i = 0; i < curr->lockdep_depth; i++) {
hlock = curr->held_locks + i;
- if (hardirq) {
- if (hlock->read)
- usage_bit = LOCK_ENABLED_HARDIRQS_READ;
- else
- usage_bit = LOCK_ENABLED_HARDIRQS;
- } else {
- if (hlock->read)
- usage_bit = LOCK_ENABLED_SOFTIRQS_READ;
- else
- usage_bit = LOCK_ENABLED_SOFTIRQS;
- }
+ usage_bit = 2 + (mark << 2); /* ENABLED */
+ if (hlock->read)
+ usage_bit += 1; /* READ */
+
+ BUG_ON(usage_bit >= LOCK_USAGE_STATES);
+
if (!mark_lock(curr, hlock, usage_bit))
return 0;
}
* We are going to turn hardirqs on, so set the
* usage bit for all held locks:
*/
- if (!mark_held_locks(curr, 1))
+ if (!mark_held_locks(curr, HARDIRQ))
return;
/*
* If we have softirqs enabled, then set the usage
* this bit from being set before)
*/
if (curr->softirqs_enabled)
- if (!mark_held_locks(curr, 0))
+ if (!mark_held_locks(curr, SOFTIRQ))
return;
curr->hardirq_enable_ip = ip;
* enabled too:
*/
if (curr->hardirqs_enabled)
- mark_held_locks(curr, 0);
+ mark_held_locks(curr, SOFTIRQ);
}
/*
debug_atomic_inc(&redundant_softirqs_off);
}
+static void __lockdep_trace_alloc(gfp_t gfp_mask, unsigned long flags)
+{
+ struct task_struct *curr = current;
+
+ if (unlikely(!debug_locks))
+ return;
+
+ /* no reclaim without waiting on it */
+ if (!(gfp_mask & __GFP_WAIT))
+ return;
+
+ /* this guy won't enter reclaim */
+ if ((curr->flags & PF_MEMALLOC) && !(gfp_mask & __GFP_NOMEMALLOC))
+ return;
+
+ /* We're only interested __GFP_FS allocations for now */
+ if (!(gfp_mask & __GFP_FS))
+ return;
+
+ if (DEBUG_LOCKS_WARN_ON(irqs_disabled_flags(flags)))
+ return;
+
+ mark_held_locks(curr, RECLAIM_FS);
+}
+
+static void check_flags(unsigned long flags);
+
+void lockdep_trace_alloc(gfp_t gfp_mask)
+{
+ unsigned long flags;
+
+ if (unlikely(current->lockdep_recursion))
+ return;
+
+ raw_local_irq_save(flags);
+ check_flags(flags);
+ current->lockdep_recursion = 1;
+ __lockdep_trace_alloc(gfp_mask, flags);
+ current->lockdep_recursion = 0;
+ raw_local_irq_restore(flags);
+}
+
static int mark_irqflags(struct task_struct *curr, struct held_lock *hlock)
{
/*
if (!hlock->hardirqs_off) {
if (hlock->read) {
if (!mark_lock(curr, hlock,
- LOCK_ENABLED_HARDIRQS_READ))
+ LOCK_ENABLED_HARDIRQ_READ))
return 0;
if (curr->softirqs_enabled)
if (!mark_lock(curr, hlock,
- LOCK_ENABLED_SOFTIRQS_READ))
+ LOCK_ENABLED_SOFTIRQ_READ))
return 0;
} else {
if (!mark_lock(curr, hlock,
- LOCK_ENABLED_HARDIRQS))
+ LOCK_ENABLED_HARDIRQ))
return 0;
if (curr->softirqs_enabled)
if (!mark_lock(curr, hlock,
- LOCK_ENABLED_SOFTIRQS))
+ LOCK_ENABLED_SOFTIRQ))
+ return 0;
+ }
+ }
+
+ /*
+ * We reuse the irq context infrastructure more broadly as a general
+ * context checking code. This tests GFP_FS recursion (a lock taken
+ * during reclaim for a GFP_FS allocation is held over a GFP_FS
+ * allocation).
+ */
+ if (!hlock->trylock && (curr->lockdep_reclaim_gfp & __GFP_FS)) {
+ if (hlock->read) {
+ if (!mark_lock(curr, hlock, LOCK_USED_IN_RECLAIM_FS_READ))
+ return 0;
+ } else {
+ if (!mark_lock(curr, hlock, LOCK_USED_IN_RECLAIM_FS))
return 0;
}
}
return 0;
}
+void lockdep_trace_alloc(gfp_t gfp_mask)
+{
+}
+
#endif
/*
return 0;
switch (new_bit) {
- case LOCK_USED_IN_HARDIRQ:
- case LOCK_USED_IN_SOFTIRQ:
- case LOCK_USED_IN_HARDIRQ_READ:
- case LOCK_USED_IN_SOFTIRQ_READ:
- case LOCK_ENABLED_HARDIRQS:
- case LOCK_ENABLED_SOFTIRQS:
- case LOCK_ENABLED_HARDIRQS_READ:
- case LOCK_ENABLED_SOFTIRQS_READ:
+#define LOCKDEP_STATE(__STATE) \
+ case LOCK_USED_IN_##__STATE: \
+ case LOCK_USED_IN_##__STATE##_READ: \
+ case LOCK_ENABLED_##__STATE: \
+ case LOCK_ENABLED_##__STATE##_READ:
+#include "lockdep_states.h"
+#undef LOCKDEP_STATE
ret = mark_lock_irq(curr, this, new_bit);
if (!ret)
return 0;
}
EXPORT_SYMBOL_GPL(lock_release);
+void lockdep_set_current_reclaim_state(gfp_t gfp_mask)
+{
+ current->lockdep_reclaim_gfp = gfp_mask;
+}
+
+void lockdep_clear_current_reclaim_state(void)
+{
+ current->lockdep_reclaim_gfp = 0;
+}
+
#ifdef CONFIG_LOCK_STAT
static int
print_lock_contention_bug(struct task_struct *curr, struct lockdep_map *lock,
* lockdep subsystem internal functions and variables.
*/
+/*
+ * Lock-class usage-state bits:
+ */
+enum lock_usage_bit {
+#define LOCKDEP_STATE(__STATE) \
+ LOCK_USED_IN_##__STATE, \
+ LOCK_USED_IN_##__STATE##_READ, \
+ LOCK_ENABLED_##__STATE, \
+ LOCK_ENABLED_##__STATE##_READ,
+#include "lockdep_states.h"
+#undef LOCKDEP_STATE
+ LOCK_USED,
+ LOCK_USAGE_STATES
+};
+
+/*
+ * Usage-state bitmasks:
+ */
+#define __LOCKF(__STATE) LOCKF_##__STATE = (1 << LOCK_##__STATE),
+
+enum {
+#define LOCKDEP_STATE(__STATE) \
+ __LOCKF(USED_IN_##__STATE) \
+ __LOCKF(USED_IN_##__STATE##_READ) \
+ __LOCKF(ENABLED_##__STATE) \
+ __LOCKF(ENABLED_##__STATE##_READ)
+#include "lockdep_states.h"
+#undef LOCKDEP_STATE
+ __LOCKF(USED)
+};
+
+#define LOCKF_ENABLED_IRQ (LOCKF_ENABLED_HARDIRQ | LOCKF_ENABLED_SOFTIRQ)
+#define LOCKF_USED_IN_IRQ (LOCKF_USED_IN_HARDIRQ | LOCKF_USED_IN_SOFTIRQ)
+
+#define LOCKF_ENABLED_IRQ_READ \
+ (LOCKF_ENABLED_HARDIRQ_READ | LOCKF_ENABLED_SOFTIRQ_READ)
+#define LOCKF_USED_IN_IRQ_READ \
+ (LOCKF_USED_IN_HARDIRQ_READ | LOCKF_USED_IN_SOFTIRQ_READ)
+
/*
* MAX_LOCKDEP_ENTRIES is the maximum number of lock dependencies
* we track.
extern struct list_head all_lock_classes;
extern struct lock_chain lock_chains[];
-extern void
-get_usage_chars(struct lock_class *class, char *c1, char *c2, char *c3, char *c4);
+#define LOCK_USAGE_CHARS (1+LOCK_USAGE_STATES/2)
+
+extern void get_usage_chars(struct lock_class *class,
+ char usage[LOCK_USAGE_CHARS]);
extern const char * __get_key_name(struct lockdep_subclass_key *key, char *str);
{
struct lock_class *class = v;
struct lock_list *entry;
- char c1, c2, c3, c4;
+ char usage[LOCK_USAGE_CHARS];
if (v == SEQ_START_TOKEN) {
seq_printf(m, "all lock classes:\n");
seq_printf(m, " BD:%5ld", lockdep_count_backward_deps(class));
#endif
- get_usage_chars(class, &c1, &c2, &c3, &c4);
- seq_printf(m, " %c%c%c%c", c1, c2, c3, c4);
+ get_usage_chars(class, usage);
+ seq_printf(m, " %s", usage);
seq_printf(m, ": ");
print_name(m, class);
nr_uncategorized++;
if (class->usage_mask & LOCKF_USED_IN_IRQ)
nr_irq_safe++;
- if (class->usage_mask & LOCKF_ENABLED_IRQS)
+ if (class->usage_mask & LOCKF_ENABLED_IRQ)
nr_irq_unsafe++;
if (class->usage_mask & LOCKF_USED_IN_SOFTIRQ)
nr_softirq_safe++;
- if (class->usage_mask & LOCKF_ENABLED_SOFTIRQS)
+ if (class->usage_mask & LOCKF_ENABLED_SOFTIRQ)
nr_softirq_unsafe++;
if (class->usage_mask & LOCKF_USED_IN_HARDIRQ)
nr_hardirq_safe++;
- if (class->usage_mask & LOCKF_ENABLED_HARDIRQS)
+ if (class->usage_mask & LOCKF_ENABLED_HARDIRQ)
nr_hardirq_unsafe++;
if (class->usage_mask & LOCKF_USED_IN_IRQ_READ)
nr_irq_read_safe++;
- if (class->usage_mask & LOCKF_ENABLED_IRQS_READ)
+ if (class->usage_mask & LOCKF_ENABLED_IRQ_READ)
nr_irq_read_unsafe++;
if (class->usage_mask & LOCKF_USED_IN_SOFTIRQ_READ)
nr_softirq_read_safe++;
- if (class->usage_mask & LOCKF_ENABLED_SOFTIRQS_READ)
+ if (class->usage_mask & LOCKF_ENABLED_SOFTIRQ_READ)
nr_softirq_read_unsafe++;
if (class->usage_mask & LOCKF_USED_IN_HARDIRQ_READ)
nr_hardirq_read_safe++;
- if (class->usage_mask & LOCKF_ENABLED_HARDIRQS_READ)
+ if (class->usage_mask & LOCKF_ENABLED_HARDIRQ_READ)
nr_hardirq_read_unsafe++;
#ifdef CONFIG_PROVE_LOCKING
static void seq_header(struct seq_file *m)
{
seq_printf(m, "lock_stat version 0.3\n");
+
+ if (unlikely(!debug_locks))
+ seq_printf(m, "*WARNING* lock debugging disabled!! - possibly due to a lockdep warning\n");
+
seq_line(m, '-', 0, 40 + 1 + 10 * (14 + 1));
seq_printf(m, "%40s %14s %14s %14s %14s %14s %14s %14s %14s "
"%14s %14s\n",
--- /dev/null
+/*
+ * Lockdep states,
+ *
+ * please update XXX_LOCK_USAGE_STATES in include/linux/lockdep.h whenever
+ * you add one, or come up with a nice dynamic solution.
+ */
+LOCKDEP_STATE(HARDIRQ)
+LOCKDEP_STATE(SOFTIRQ)
+LOCKDEP_STATE(RECLAIM_FS)
/*
* Must be called with lock->wait_lock held.
*/
-void debug_mutex_set_owner(struct mutex *lock, struct thread_info *new_owner)
-{
- lock->owner = new_owner;
-}
-
void debug_mutex_lock_common(struct mutex *lock, struct mutex_waiter *waiter)
{
memset(waiter, MUTEX_DEBUG_INIT, sizeof(*waiter));
/* Mark the current thread as blocked on the lock: */
ti->task->blocked_on = waiter;
- waiter->lock = lock;
}
void mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter,
DEBUG_LOCKS_WARN_ON(lock->magic != lock);
DEBUG_LOCKS_WARN_ON(lock->owner != current_thread_info());
DEBUG_LOCKS_WARN_ON(!lock->wait_list.prev && !lock->wait_list.next);
- DEBUG_LOCKS_WARN_ON(lock->owner != current_thread_info());
+ mutex_clear_owner(lock);
}
void debug_mutex_init(struct mutex *lock, const char *name,
debug_check_no_locks_freed((void *)lock, sizeof(*lock));
lockdep_init_map(&lock->dep_map, name, key, 0);
#endif
- lock->owner = NULL;
lock->magic = lock;
}
/*
* This must be called with lock->wait_lock held.
*/
-extern void
-debug_mutex_set_owner(struct mutex *lock, struct thread_info *new_owner);
-
-static inline void debug_mutex_clear_owner(struct mutex *lock)
-{
- lock->owner = NULL;
-}
-
extern void debug_mutex_lock_common(struct mutex *lock,
struct mutex_waiter *waiter);
extern void debug_mutex_wake_waiter(struct mutex *lock,
extern void debug_mutex_init(struct mutex *lock, const char *name,
struct lock_class_key *key);
+static inline void mutex_set_owner(struct mutex *lock)
+{
+ lock->owner = current_thread_info();
+}
+
+static inline void mutex_clear_owner(struct mutex *lock)
+{
+ lock->owner = NULL;
+}
+
#define spin_lock_mutex(lock, flags) \
do { \
struct mutex *l = container_of(lock, struct mutex, wait_lock); \
* Many thanks to Arjan van de Ven, Thomas Gleixner, Steven Rostedt and
* David Howells for suggestions and improvements.
*
+ * - Adaptive spinning for mutexes by Peter Zijlstra. (Ported to mainline
+ * from the -rt tree, where it was originally implemented for rtmutexes
+ * by Steven Rostedt, based on work by Gregory Haskins, Peter Morreale
+ * and Sven Dietrich.
+ *
* Also see Documentation/mutex-design.txt.
*/
#include <linux/mutex.h>
atomic_set(&lock->count, 1);
spin_lock_init(&lock->wait_lock);
INIT_LIST_HEAD(&lock->wait_list);
+ mutex_clear_owner(lock);
debug_mutex_init(lock, name, key);
}
* 'unlocked' into 'locked' state.
*/
__mutex_fastpath_lock(&lock->count, __mutex_lock_slowpath);
+ mutex_set_owner(lock);
}
EXPORT_SYMBOL(mutex_lock);
* The unlocking fastpath is the 0->1 transition from 'locked'
* into 'unlocked' state:
*/
+#ifndef CONFIG_DEBUG_MUTEXES
+ /*
+ * When debugging is enabled we must not clear the owner before time,
+ * the slow path will always be taken, and that clears the owner field
+ * after verifying that it was indeed current.
+ */
+ mutex_clear_owner(lock);
+#endif
__mutex_fastpath_unlock(&lock->count, __mutex_unlock_slowpath);
}
{
struct task_struct *task = current;
struct mutex_waiter waiter;
- unsigned int old_val;
unsigned long flags;
+ preempt_disable();
+ mutex_acquire(&lock->dep_map, subclass, 0, ip);
+#if defined(CONFIG_SMP) && !defined(CONFIG_DEBUG_MUTEXES)
+ /*
+ * Optimistic spinning.
+ *
+ * We try to spin for acquisition when we find that there are no
+ * pending waiters and the lock owner is currently running on a
+ * (different) CPU.
+ *
+ * The rationale is that if the lock owner is running, it is likely to
+ * release the lock soon.
+ *
+ * Since this needs the lock owner, and this mutex implementation
+ * doesn't track the owner atomically in the lock field, we need to
+ * track it non-atomically.
+ *
+ * We can't do this for DEBUG_MUTEXES because that relies on wait_lock
+ * to serialize everything.
+ */
+
+ for (;;) {
+ struct thread_info *owner;
+
+ /*
+ * If there's an owner, wait for it to either
+ * release the lock or go to sleep.
+ */
+ owner = ACCESS_ONCE(lock->owner);
+ if (owner && !mutex_spin_on_owner(lock, owner))
+ break;
+
+ if (atomic_cmpxchg(&lock->count, 1, 0) == 1) {
+ lock_acquired(&lock->dep_map, ip);
+ mutex_set_owner(lock);
+ preempt_enable();
+ return 0;
+ }
+
+ /*
+ * When there's no owner, we might have preempted between the
+ * owner acquiring the lock and setting the owner field. If
+ * we're an RT task that will live-lock because we won't let
+ * the owner complete.
+ */
+ if (!owner && (need_resched() || rt_task(task)))
+ break;
+
+ /*
+ * The cpu_relax() call is a compiler barrier which forces
+ * everything in this loop to be re-loaded. We don't need
+ * memory barriers as we'll eventually observe the right
+ * values at the cost of a few extra spins.
+ */
+ cpu_relax();
+ }
+#endif
spin_lock_mutex(&lock->wait_lock, flags);
debug_mutex_lock_common(lock, &waiter);
- mutex_acquire(&lock->dep_map, subclass, 0, ip);
debug_mutex_add_waiter(lock, &waiter, task_thread_info(task));
/* add waiting tasks to the end of the waitqueue (FIFO): */
list_add_tail(&waiter.list, &lock->wait_list);
waiter.task = task;
- old_val = atomic_xchg(&lock->count, -1);
- if (old_val == 1)
+ if (atomic_xchg(&lock->count, -1) == 1)
goto done;
lock_contended(&lock->dep_map, ip);
* that when we release the lock, we properly wake up the
* other waiters:
*/
- old_val = atomic_xchg(&lock->count, -1);
- if (old_val == 1)
+ if (atomic_xchg(&lock->count, -1) == 1)
break;
/*
spin_unlock_mutex(&lock->wait_lock, flags);
debug_mutex_free_waiter(&waiter);
+ preempt_enable();
return -EINTR;
}
__set_task_state(task, state);
/* didnt get the lock, go to sleep: */
spin_unlock_mutex(&lock->wait_lock, flags);
- schedule();
+ __schedule();
spin_lock_mutex(&lock->wait_lock, flags);
}
done:
lock_acquired(&lock->dep_map, ip);
/* got the lock - rejoice! */
- mutex_remove_waiter(lock, &waiter, task_thread_info(task));
- debug_mutex_set_owner(lock, task_thread_info(task));
+ mutex_remove_waiter(lock, &waiter, current_thread_info());
+ mutex_set_owner(lock);
/* set it to 0 if there are no waiters left: */
if (likely(list_empty(&lock->wait_list)))
spin_unlock_mutex(&lock->wait_lock, flags);
debug_mutex_free_waiter(&waiter);
+ preempt_enable();
return 0;
}
mutex_lock_interruptible_nested(struct mutex *lock, unsigned int subclass)
{
might_sleep();
- return __mutex_lock_common(lock, TASK_INTERRUPTIBLE, subclass, _RET_IP_);
+ return __mutex_lock_common(lock, TASK_INTERRUPTIBLE,
+ subclass, _RET_IP_);
}
EXPORT_SYMBOL_GPL(mutex_lock_interruptible_nested);
wake_up_process(waiter->task);
}
- debug_mutex_clear_owner(lock);
-
spin_unlock_mutex(&lock->wait_lock, flags);
}
*/
int __sched mutex_lock_interruptible(struct mutex *lock)
{
+ int ret;
+
might_sleep();
- return __mutex_fastpath_lock_retval
+ ret = __mutex_fastpath_lock_retval
(&lock->count, __mutex_lock_interruptible_slowpath);
+ if (!ret)
+ mutex_set_owner(lock);
+
+ return ret;
}
EXPORT_SYMBOL(mutex_lock_interruptible);
int __sched mutex_lock_killable(struct mutex *lock)
{
+ int ret;
+
might_sleep();
- return __mutex_fastpath_lock_retval
+ ret = __mutex_fastpath_lock_retval
(&lock->count, __mutex_lock_killable_slowpath);
+ if (!ret)
+ mutex_set_owner(lock);
+
+ return ret;
}
EXPORT_SYMBOL(mutex_lock_killable);
prev = atomic_xchg(&lock->count, -1);
if (likely(prev == 1)) {
- debug_mutex_set_owner(lock, current_thread_info());
+ mutex_set_owner(lock);
mutex_acquire(&lock->dep_map, 0, 1, _RET_IP_);
}
+
/* Set it back to 0 if there are no waiters: */
if (likely(list_empty(&lock->wait_list)))
atomic_set(&lock->count, 0);
*/
int __sched mutex_trylock(struct mutex *lock)
{
- return __mutex_fastpath_trylock(&lock->count,
- __mutex_trylock_slowpath);
+ int ret;
+
+ ret = __mutex_fastpath_trylock(&lock->count, __mutex_trylock_slowpath);
+ if (ret)
+ mutex_set_owner(lock);
+
+ return ret;
}
EXPORT_SYMBOL(mutex_trylock);
#define mutex_remove_waiter(lock, waiter, ti) \
__list_del((waiter)->list.prev, (waiter)->list.next)
-#define debug_mutex_set_owner(lock, new_owner) do { } while (0)
-#define debug_mutex_clear_owner(lock) do { } while (0)
+#ifdef CONFIG_SMP
+static inline void mutex_set_owner(struct mutex *lock)
+{
+ lock->owner = current_thread_info();
+}
+
+static inline void mutex_clear_owner(struct mutex *lock)
+{
+ lock->owner = NULL;
+}
+#else
+static inline void mutex_set_owner(struct mutex *lock)
+{
+}
+
+static inline void mutex_clear_owner(struct mutex *lock)
+{
+}
+#endif
+
#define debug_mutex_wake_waiter(lock, waiter) do { } while (0)
#define debug_mutex_free_waiter(waiter) do { } while (0)
#define debug_mutex_add_waiter(lock, waiter, ti) do { } while (0)
return error;
device_pm_lock();
- local_irq_disable();
+
/* At this point, device_suspend() has been called, but *not*
* device_power_down(). We *must* call device_power_down() now.
* Otherwise, drivers for some devices (e.g. interrupt controllers)
if (error) {
printk(KERN_ERR "PM: Some devices failed to power down, "
"aborting hibernation\n");
- goto Enable_irqs;
+ goto Unlock;
}
+
+ error = platform_pre_snapshot(platform_mode);
+ if (error || hibernation_test(TEST_PLATFORM))
+ goto Platform_finish;
+
+ error = disable_nonboot_cpus();
+ if (error || hibernation_test(TEST_CPUS)
+ || hibernation_testmode(HIBERNATION_TEST))
+ goto Enable_cpus;
+
+ local_irq_disable();
+
sysdev_suspend(PMSG_FREEZE);
if (error) {
printk(KERN_ERR "PM: Some devices failed to power down, "
"aborting hibernation\n");
- goto Power_up_devices;
+ goto Enable_irqs;
}
if (hibernation_test(TEST_CORE))
restore_processor_state();
if (!in_suspend)
platform_leave(platform_mode);
+
Power_up:
sysdev_resume();
/* NOTE: device_power_up() is just a resume() for devices
* that suspended with irqs off ... no overall powerup.
*/
- Power_up_devices:
- device_power_up(in_suspend ?
- (error ? PMSG_RECOVER : PMSG_THAW) : PMSG_RESTORE);
+
Enable_irqs:
local_irq_enable();
+
+ Enable_cpus:
+ enable_nonboot_cpus();
+
+ Platform_finish:
+ platform_finish(platform_mode);
+
+ device_power_up(in_suspend ?
+ (error ? PMSG_RECOVER : PMSG_THAW) : PMSG_RESTORE);
+
+ Unlock:
device_pm_unlock();
+
return error;
}
if (hibernation_test(TEST_DEVICES))
goto Recover_platform;
- error = platform_pre_snapshot(platform_mode);
- if (error || hibernation_test(TEST_PLATFORM))
- goto Finish;
-
- error = disable_nonboot_cpus();
- if (!error) {
- if (hibernation_test(TEST_CPUS))
- goto Enable_cpus;
-
- if (hibernation_testmode(HIBERNATION_TEST))
- goto Enable_cpus;
+ error = create_image(platform_mode);
+ /* Control returns here after successful restore */
- error = create_image(platform_mode);
- /* Control returns here after successful restore */
- }
- Enable_cpus:
- enable_nonboot_cpus();
- Finish:
- platform_finish(platform_mode);
Resume_devices:
device_resume(in_suspend ?
(error ? PMSG_RECOVER : PMSG_THAW) : PMSG_RESTORE);
* kernel.
*/
-static int resume_target_kernel(void)
+static int resume_target_kernel(bool platform_mode)
{
int error;
device_pm_lock();
- local_irq_disable();
+
error = device_power_down(PMSG_QUIESCE);
if (error) {
printk(KERN_ERR "PM: Some devices failed to power down, "
"aborting resume\n");
- goto Enable_irqs;
+ goto Unlock;
}
- sysdev_suspend(PMSG_QUIESCE);
+
+ error = platform_pre_restore(platform_mode);
+ if (error)
+ goto Cleanup;
+
+ error = disable_nonboot_cpus();
+ if (error)
+ goto Enable_cpus;
+
+ local_irq_disable();
+
+ error = sysdev_suspend(PMSG_QUIESCE);
+ if (error)
+ goto Enable_irqs;
+
/* We'll ignore saved state, but this gets preempt count (etc) right */
save_processor_state();
error = restore_highmem();
swsusp_free();
restore_processor_state();
touch_softlockup_watchdog();
+
sysdev_resume();
- device_power_up(PMSG_RECOVER);
+
Enable_irqs:
local_irq_enable();
+
+ Enable_cpus:
+ enable_nonboot_cpus();
+
+ Cleanup:
+ platform_restore_cleanup(platform_mode);
+
+ device_power_up(PMSG_RECOVER);
+
+ Unlock:
device_pm_unlock();
+
return error;
}
pm_prepare_console();
suspend_console();
error = device_suspend(PMSG_QUIESCE);
- if (error)
- goto Finish;
-
- error = platform_pre_restore(platform_mode);
if (!error) {
- error = disable_nonboot_cpus();
- if (!error)
- error = resume_target_kernel();
- enable_nonboot_cpus();
+ error = resume_target_kernel(platform_mode);
+ device_resume(PMSG_RECOVER);
}
- platform_restore_cleanup(platform_mode);
- device_resume(PMSG_RECOVER);
- Finish:
resume_console();
pm_restore_console();
return error;
goto Resume_devices;
}
+ device_pm_lock();
+
+ error = device_power_down(PMSG_HIBERNATE);
+ if (error)
+ goto Unlock;
+
error = hibernation_ops->prepare();
if (error)
- goto Resume_devices;
+ goto Platofrm_finish;
error = disable_nonboot_cpus();
if (error)
- goto Finish;
+ goto Platofrm_finish;
- device_pm_lock();
local_irq_disable();
- error = device_power_down(PMSG_HIBERNATE);
- if (!error) {
- sysdev_suspend(PMSG_HIBERNATE);
- hibernation_ops->enter();
- /* We should never get here */
- while (1);
- }
- local_irq_enable();
- device_pm_unlock();
+ sysdev_suspend(PMSG_HIBERNATE);
+ hibernation_ops->enter();
+ /* We should never get here */
+ while (1);
/*
* We don't need to reenable the nonboot CPUs or resume consoles, since
* the system is going to be halted anyway.
*/
- Finish:
+ Platofrm_finish:
hibernation_ops->finish();
+
+ device_power_up(PMSG_RESTORE);
+
+ Unlock:
+ device_pm_unlock();
+
Resume_devices:
entering_platform_hibernation = false;
device_resume(PMSG_RESTORE);
resume_console();
+
Close:
hibernation_ops->end();
+
return error;
}
*/
static int suspend_enter(suspend_state_t state)
{
- int error = 0;
+ int error;
device_pm_lock();
- arch_suspend_disable_irqs();
- BUG_ON(!irqs_disabled());
- if ((error = device_power_down(PMSG_SUSPEND))) {
+ error = device_power_down(PMSG_SUSPEND);
+ if (error) {
printk(KERN_ERR "PM: Some devices failed to power down\n");
goto Done;
}
+ if (suspend_ops->prepare) {
+ error = suspend_ops->prepare();
+ if (error)
+ goto Power_up_devices;
+ }
+
+ if (suspend_test(TEST_PLATFORM))
+ goto Platfrom_finish;
+
+ error = disable_nonboot_cpus();
+ if (error || suspend_test(TEST_CPUS))
+ goto Enable_cpus;
+
+ arch_suspend_disable_irqs();
+ BUG_ON(!irqs_disabled());
+
error = sysdev_suspend(PMSG_SUSPEND);
if (!error) {
if (!suspend_test(TEST_CORE))
sysdev_resume();
}
- device_power_up(PMSG_RESUME);
- Done:
arch_suspend_enable_irqs();
BUG_ON(irqs_disabled());
+
+ Enable_cpus:
+ enable_nonboot_cpus();
+
+ Platfrom_finish:
+ if (suspend_ops->finish)
+ suspend_ops->finish();
+
+ Power_up_devices:
+ device_power_up(PMSG_RESUME);
+
+ Done:
device_pm_unlock();
+
return error;
}
if (suspend_test(TEST_DEVICES))
goto Recover_platform;
- if (suspend_ops->prepare) {
- error = suspend_ops->prepare();
- if (error)
- goto Resume_devices;
- }
-
- if (suspend_test(TEST_PLATFORM))
- goto Finish;
-
- error = disable_nonboot_cpus();
- if (!error && !suspend_test(TEST_CPUS))
- suspend_enter(state);
+ suspend_enter(state);
- enable_nonboot_cpus();
- Finish:
- if (suspend_ops->finish)
- suspend_ops->finish();
Resume_devices:
suspend_test_start();
device_resume(PMSG_RESUME);
static atomic_t n_rcu_torture_error;
static long n_rcu_torture_timers = 0;
static struct list_head rcu_torture_removed;
+static cpumask_var_t shuffle_tmp_mask;
static int stutter_pause_test = 0;
*/
static void rcu_torture_shuffle_tasks(void)
{
- cpumask_t tmp_mask;
int i;
- cpus_setall(tmp_mask);
+ cpumask_setall(shuffle_tmp_mask);
get_online_cpus();
/* No point in shuffling if there is only one online CPU (ex: UP) */
}
if (rcu_idle_cpu != -1)
- cpu_clear(rcu_idle_cpu, tmp_mask);
+ cpumask_clear_cpu(rcu_idle_cpu, shuffle_tmp_mask);
- set_cpus_allowed_ptr(current, &tmp_mask);
+ set_cpus_allowed_ptr(current, shuffle_tmp_mask);
if (reader_tasks) {
for (i = 0; i < nrealreaders; i++)
if (reader_tasks[i])
set_cpus_allowed_ptr(reader_tasks[i],
- &tmp_mask);
+ shuffle_tmp_mask);
}
if (fakewriter_tasks) {
for (i = 0; i < nfakewriters; i++)
if (fakewriter_tasks[i])
set_cpus_allowed_ptr(fakewriter_tasks[i],
- &tmp_mask);
+ shuffle_tmp_mask);
}
if (writer_task)
- set_cpus_allowed_ptr(writer_task, &tmp_mask);
+ set_cpus_allowed_ptr(writer_task, shuffle_tmp_mask);
if (stats_task)
- set_cpus_allowed_ptr(stats_task, &tmp_mask);
+ set_cpus_allowed_ptr(stats_task, shuffle_tmp_mask);
if (rcu_idle_cpu == -1)
rcu_idle_cpu = num_online_cpus() - 1;
if (shuffler_task) {
VERBOSE_PRINTK_STRING("Stopping rcu_torture_shuffle task");
kthread_stop(shuffler_task);
+ free_cpumask_var(shuffle_tmp_mask);
}
shuffler_task = NULL;
}
if (test_no_idle_hz) {
rcu_idle_cpu = num_online_cpus() - 1;
+
+ if (!alloc_cpumask_var(&shuffle_tmp_mask, GFP_KERNEL)) {
+ firsterr = -ENOMEM;
+ VERBOSE_PRINTK_ERRSTRING("Failed to alloc mask");
+ goto unwind;
+ }
+
/* Create the shuffler thread */
shuffler_task = kthread_run(rcu_torture_shuffle, NULL,
"rcu_torture_shuffle");
if (IS_ERR(shuffler_task)) {
+ free_cpumask_var(shuffle_tmp_mask);
firsterr = PTR_ERR(shuffler_task);
VERBOSE_PRINTK_ERRSTRING("Failed to create shuffler");
shuffler_task = NULL;
/*
* schedule() is the main scheduler function.
*/
-asmlinkage void __sched schedule(void)
+asmlinkage void __sched __schedule(void)
{
struct task_struct *prev, *next;
unsigned long *switch_count;
struct rq *rq;
int cpu;
-need_resched:
- preempt_disable();
cpu = smp_processor_id();
rq = cpu_rq(cpu);
rcu_qsctr_inc(cpu);
if (unlikely(reacquire_kernel_lock(current) < 0))
goto need_resched_nonpreemptible;
+}
+asmlinkage void __sched schedule(void)
+{
+need_resched:
+ preempt_disable();
+ __schedule();
preempt_enable_no_resched();
if (unlikely(test_thread_flag(TIF_NEED_RESCHED)))
goto need_resched;
}
EXPORT_SYMBOL(schedule);
+#ifdef CONFIG_SMP
+/*
+ * Look out! "owner" is an entirely speculative pointer
+ * access and not reliable.
+ */
+int mutex_spin_on_owner(struct mutex *lock, struct thread_info *owner)
+{
+ unsigned int cpu;
+ struct rq *rq;
+
+ if (!sched_feat(OWNER_SPIN))
+ return 0;
+
+#ifdef CONFIG_DEBUG_PAGEALLOC
+ /*
+ * Need to access the cpu field knowing that
+ * DEBUG_PAGEALLOC could have unmapped it if
+ * the mutex owner just released it and exited.
+ */
+ if (probe_kernel_address(&owner->cpu, cpu))
+ goto out;
+#else
+ cpu = owner->cpu;
+#endif
+
+ /*
+ * Even if the access succeeded (likely case),
+ * the cpu field may no longer be valid.
+ */
+ if (cpu >= nr_cpumask_bits)
+ goto out;
+
+ /*
+ * We need to validate that we can do a
+ * get_cpu() and that we have the percpu area.
+ */
+ if (!cpu_online(cpu))
+ goto out;
+
+ rq = cpu_rq(cpu);
+
+ for (;;) {
+ /*
+ * Owner changed, break to re-assess state.
+ */
+ if (lock->owner != owner)
+ break;
+
+ /*
+ * Is that owner really running on that cpu?
+ */
+ if (task_thread_info(rq->curr) != owner || need_resched())
+ return 0;
+
+ cpu_relax();
+ }
+out:
+ return 1;
+}
+#endif
+
#ifdef CONFIG_PREEMPT
/*
* this is the entry point to schedule() from in-kernel preemption
#ifdef CONFIG_SMP
int cpupri_find(struct cpupri *cp,
- struct task_struct *p, cpumask_t *lowest_mask);
+ struct task_struct *p, struct cpumask *lowest_mask);
void cpupri_set(struct cpupri *cp, int cpu, int pri);
int cpupri_init(struct cpupri *cp, bool bootmem);
void cpupri_cleanup(struct cpupri *cp);
SCHED_FEAT(ASYM_EFF_LOAD, 1)
SCHED_FEAT(WAKEUP_OVERLAP, 0)
SCHED_FEAT(LAST_BUDDY, 1)
+SCHED_FEAT(OWNER_SPIN, 1)
static int refcount;
static struct workqueue_struct *stop_machine_wq;
static struct stop_machine_data active, idle;
-static const cpumask_t *active_cpus;
+static const struct cpumask *active_cpus;
static void *stop_machine_work;
static void set_state(enum stopmachine_state newstate)
debug_object_free(timer, &timer_debug_descr);
}
-static void __init_timer(struct timer_list *timer);
+static void __init_timer(struct timer_list *timer,
+ const char *name,
+ struct lock_class_key *key);
-void init_timer_on_stack(struct timer_list *timer)
+void init_timer_on_stack_key(struct timer_list *timer,
+ const char *name,
+ struct lock_class_key *key)
{
debug_object_init_on_stack(timer, &timer_debug_descr);
- __init_timer(timer);
+ __init_timer(timer, name, key);
}
-EXPORT_SYMBOL_GPL(init_timer_on_stack);
+EXPORT_SYMBOL_GPL(init_timer_on_stack_key);
void destroy_timer_on_stack(struct timer_list *timer)
{
static inline void debug_timer_deactivate(struct timer_list *timer) { }
#endif
-static void __init_timer(struct timer_list *timer)
+static void __init_timer(struct timer_list *timer,
+ const char *name,
+ struct lock_class_key *key)
{
timer->entry.next = NULL;
timer->base = __raw_get_cpu_var(tvec_bases);
timer->start_pid = -1;
memset(timer->start_comm, 0, TASK_COMM_LEN);
#endif
+ lockdep_init_map(&timer->lockdep_map, name, key, 0);
}
/**
* init_timer() must be done to a timer prior calling *any* of the
* other timer functions.
*/
-void init_timer(struct timer_list *timer)
+void init_timer_key(struct timer_list *timer,
+ const char *name,
+ struct lock_class_key *key)
{
debug_timer_init(timer);
- __init_timer(timer);
+ __init_timer(timer, name, key);
}
-EXPORT_SYMBOL(init_timer);
+EXPORT_SYMBOL(init_timer_key);
-void init_timer_deferrable(struct timer_list *timer)
+void init_timer_deferrable_key(struct timer_list *timer,
+ const char *name,
+ struct lock_class_key *key)
{
- init_timer(timer);
+ init_timer_key(timer, name, key);
timer_set_deferrable(timer);
}
-EXPORT_SYMBOL(init_timer_deferrable);
+EXPORT_SYMBOL(init_timer_deferrable_key);
static inline void detach_timer(struct timer_list *timer,
int clear_pending)
*/
int del_timer_sync(struct timer_list *timer)
{
+#ifdef CONFIG_LOCKDEP
+ unsigned long flags;
+
+ local_irq_save(flags);
+ lock_map_acquire(&timer->lockdep_map);
+ lock_map_release(&timer->lockdep_map);
+ local_irq_restore(flags);
+#endif
+
for (;;) {
int ret = try_to_del_timer_sync(timer);
if (ret >= 0)
set_running_timer(base, timer);
detach_timer(timer, 1);
+
spin_unlock_irq(&base->lock);
{
int preempt_count = preempt_count();
+
+#ifdef CONFIG_LOCKDEP
+ /*
+ * It is permissible to free the timer from
+ * inside the function that is called from
+ * it, this we need to take into account for
+ * lockdep too. To avoid bogus "held lock
+ * freed" warnings as well as problems when
+ * looking into timer->lockdep_map, make a
+ * copy and use that here.
+ */
+ struct lockdep_map lockdep_map =
+ timer->lockdep_map;
+#endif
+ /*
+ * Couple the lock chain with the lock chain at
+ * del_timer_sync() by acquiring the lock_map
+ * around the fn() call here and in
+ * del_timer_sync().
+ */
+ lock_map_acquire(&lockdep_map);
+
fn(data);
+
+ lock_map_release(&lockdep_map);
+
if (preempt_count != preempt_count()) {
printk(KERN_ERR "huh, entered %p "
"with preempt_count %08x, exited"
might_sleep();
lock_map_acquire(&wq->lockdep_map);
lock_map_release(&wq->lockdep_map);
- for_each_cpu_mask_nr(cpu, *cpu_map)
+ for_each_cpu(cpu, cpu_map)
flush_cpu_workqueue(per_cpu_ptr(wq->cpu_wq, cpu));
}
EXPORT_SYMBOL_GPL(flush_workqueue);
wq = cwq->wq;
cpu_map = wq_cpu_map(wq);
- for_each_cpu_mask_nr(cpu, *cpu_map)
+ for_each_cpu(cpu, cpu_map)
wait_on_cpu_work(per_cpu_ptr(wq->cpu_wq, cpu), work);
}
list_del(&wq->list);
spin_unlock(&workqueue_lock);
- for_each_cpu_mask_nr(cpu, *cpu_map)
+ for_each_cpu(cpu, cpu_map)
cleanup_workqueue_thread(per_cpu_ptr(wq->cpu_wq, cpu));
cpu_maps_update_done();
err_printk(dev, NULL, "DMA-API: device driver tries "
"to sync DMA memory it has not allocated "
"[device address=0x%016llx] [size=%llu bytes]\n",
- addr, size);
+ (unsigned long long)addr, size);
goto out;
}
"DMA memory with different direction "
"[device address=0x%016llx] [size=%llu bytes] "
"[mapped with %s] [synced with %s]\n",
- addr, entry->size,
+ (unsigned long long)addr, entry->size,
dir2name[entry->direction],
dir2name[direction]);
}
"device read-only DMA memory for cpu "
"[device address=0x%016llx] [size=%llu bytes] "
"[mapped with %s] [synced with %s]\n",
- addr, entry->size,
+ (unsigned long long)addr, entry->size,
dir2name[entry->direction],
dir2name[direction]);
"device write-only DMA memory to device "
"[device address=0x%016llx] [size=%llu bytes] "
"[mapped with %s] [synced with %s]\n",
- addr, entry->size,
+ (unsigned long long)addr, entry->size,
dir2name[entry->direction],
dir2name[direction]);
{
if (unlikely(!__pdata))
return;
- __percpu_depopulate_mask(__pdata, &cpu_possible_map);
+ __percpu_depopulate_mask(__pdata, cpu_possible_mask);
kfree(__percpu_disguise(__pdata));
}
EXPORT_SYMBOL_GPL(free_percpu);
unsigned long did_some_progress;
unsigned long pages_reclaimed = 0;
+ lockdep_trace_alloc(gfp_mask);
+
might_sleep_if(wait);
if (should_fail_alloc_page(gfp_mask, order))
*/
cpuset_update_task_memory_state();
p->flags |= PF_MEMALLOC;
+
+ lockdep_set_current_reclaim_state(gfp_mask);
reclaim_state.reclaimed_slab = 0;
p->reclaim_state = &reclaim_state;
did_some_progress = try_to_free_pages(zonelist, order, gfp_mask);
p->reclaim_state = NULL;
+ lockdep_clear_current_reclaim_state();
p->flags &= ~PF_MEMALLOC;
cond_resched();
/*
* Some configs put our parent kthread in a limited cpuset,
- * which kthread() overrides, forcing cpus_allowed == CPU_MASK_ALL.
+ * which kthread() overrides, forcing cpus_allowed == cpu_all_mask.
* Our needs are more modest - cut back to our cpusets cpus_allowed.
* This is needed as pdflush's are dynamically created and destroyed.
* The boottime pdflush's are easily placed w/o these 2 lines.
unsigned long save_flags;
void *ptr;
+ lockdep_trace_alloc(flags);
+
if (slab_should_failslab(cachep, flags))
return NULL;
unsigned long save_flags;
void *objp;
+ lockdep_trace_alloc(flags);
+
if (slab_should_failslab(cachep, flags))
return NULL;
unsigned int *m;
int align = max(ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN);
+ lockdep_trace_alloc(gfp);
+
if (size < PAGE_SIZE - align) {
if (!size)
return ZERO_SIZE_PTR;
unsigned long flags;
unsigned int objsize;
+ lockdep_trace_alloc(gfpflags);
might_sleep_if(gfpflags & __GFP_WAIT);
if (should_failslab(s->objsize, gfpflags))
};
const struct cpumask *cpumask = cpumask_of_node(pgdat->node_id);
+ lockdep_set_current_reclaim_state(GFP_KERNEL);
+
if (!cpumask_empty(cpumask))
set_cpus_allowed_ptr(tsk, cpumask);
current->reclaim_state = &reclaim_state;
memset(ret, 0, NR_VM_EVENT_ITEMS * sizeof(unsigned long));
- for_each_cpu_mask_nr(cpu, *cpumask) {
+ for_each_cpu(cpu, cpumask) {
struct vm_event_state *this = &per_cpu(vm_event_states, cpu);
for (i = 0; i < NR_VM_EVENT_ITEMS; i++)
atalk_proc_dir = proc_mkdir("atalk", init_net.proc_net);
if (!atalk_proc_dir)
goto out;
- atalk_proc_dir->owner = THIS_MODULE;
p = proc_create("interface", S_IRUGO, atalk_proc_dir,
&atalk_seq_interface_fops);
printk(KERN_ERR "Unable to initialize /proc/atm/%s\n", STAT_FILE_NAME);
return -ENOMEM;
}
- p->owner = THIS_MODULE;
return 0;
}
atm_proc_root, e->proc_fops);
if (!dirent)
goto err_out_remove;
- dirent->owner = THIS_MODULE;
e->dirent = dirent;
}
ret = 0;
/* create /proc/net/can-bcm directory */
proc_dir = proc_mkdir("can-bcm", init_net.proc_net);
-
- if (proc_dir)
- proc_dir->owner = THIS_MODULE;
-
return 0;
}
return;
}
- can_dir->owner = THIS_MODULE;
-
/* own procfs entries from the AF_CAN core */
pde_version = can_create_proc_readentry(CAN_PROC_VERSION, 0644,
can_proc_read_version, NULL);
udph->dest = htons(np->remote_port);
udph->len = htons(udp_len);
udph->check = 0;
- udph->check = csum_tcpudp_magic(htonl(np->local_ip),
- htonl(np->remote_ip),
+ udph->check = csum_tcpudp_magic(np->local_ip,
+ np->remote_ip,
udp_len, IPPROTO_UDP,
csum_partial(udph, udp_len, 0));
if (udph->check == 0)
iph->ttl = 64;
iph->protocol = IPPROTO_UDP;
iph->check = 0;
- put_unaligned(htonl(np->local_ip), &(iph->saddr));
- put_unaligned(htonl(np->remote_ip), &(iph->daddr));
+ put_unaligned(np->local_ip, &(iph->saddr));
+ put_unaligned(np->remote_ip, &(iph->daddr));
iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
eth = (struct ethhdr *) skb_push(skb, ETH_HLEN);
memcpy(&tip, arp_ptr, 4);
/* Should we ignore arp? */
- if (tip != htonl(np->local_ip) ||
+ if (tip != np->local_ip ||
ipv4_is_loopback(tip) || ipv4_is_multicast(tip))
return;
goto out;
if (checksum_udp(skb, uh, ulen, iph->saddr, iph->daddr))
goto out;
- if (np->local_ip && np->local_ip != ntohl(iph->daddr))
+ if (np->local_ip && np->local_ip != iph->daddr)
goto out;
- if (np->remote_ip && np->remote_ip != ntohl(iph->saddr))
+ if (np->remote_ip && np->remote_ip != iph->saddr)
goto out;
if (np->local_port && np->local_port != ntohs(uh->dest))
goto out;
{
printk(KERN_INFO "%s: local port %d\n",
np->name, np->local_port);
- printk(KERN_INFO "%s: local IP %d.%d.%d.%d\n",
- np->name, HIPQUAD(np->local_ip));
+ printk(KERN_INFO "%s: local IP %pI4\n",
+ np->name, &np->local_ip);
printk(KERN_INFO "%s: interface %s\n",
np->name, np->dev_name);
printk(KERN_INFO "%s: remote port %d\n",
np->name, np->remote_port);
- printk(KERN_INFO "%s: remote IP %d.%d.%d.%d\n",
- np->name, HIPQUAD(np->remote_ip));
+ printk(KERN_INFO "%s: remote IP %pI4\n",
+ np->name, &np->remote_ip);
printk(KERN_INFO "%s: remote ethernet address %pM\n",
np->name, np->remote_mac);
}
if ((delim = strchr(cur, '/')) == NULL)
goto parse_failed;
*delim = 0;
- np->local_ip = ntohl(in_aton(cur));
+ np->local_ip = in_aton(cur);
cur = delim;
}
cur++;
if ((delim = strchr(cur, '/')) == NULL)
goto parse_failed;
*delim = 0;
- np->remote_ip = ntohl(in_aton(cur));
+ np->remote_ip = in_aton(cur);
cur = delim + 1;
if (*cur != 0) {
goto release;
}
- np->local_ip = ntohl(in_dev->ifa_list->ifa_local);
+ np->local_ip = in_dev->ifa_list->ifa_local;
rcu_read_unlock();
- printk(KERN_INFO "%s: local IP %d.%d.%d.%d\n",
- np->name, HIPQUAD(np->local_ip));
+ printk(KERN_INFO "%s: local IP %pI4\n", np->name, &np->local_ip);
}
if (np->rx_hook) {
pg_proc_dir = proc_mkdir(PG_PROC_DIR, init_net.proc_net);
if (!pg_proc_dir)
return -ENODEV;
- pg_proc_dir->owner = THIS_MODULE;
pe = proc_create(PGCTRL, 0600, pg_proc_dir, &pktgen_fops);
if (pe == NULL) {
skb_network_header_len(skb));
skb_copy_from_linear_data(skb, nskb->data, doffset);
- if (pos >= offset + len)
+ if (fskb != skb_shinfo(skb)->frag_list)
continue;
if (!sg) {
proc_irda = proc_mkdir("irda", init_net.proc_net);
if (proc_irda == NULL)
return;
- proc_irda->owner = THIS_MODULE;
for (i = 0; i < ARRAY_SIZE(irda_dirs); i++)
d = proc_create(irda_dirs[i].name, 0, proc_irda,
llc_proc_dir = proc_mkdir("llc", init_net.proc_net);
if (!llc_proc_dir)
goto out;
- llc_proc_dir->owner = THIS_MODULE;
p = proc_create("socket", S_IRUGO, llc_proc_dir, &llc_seq_socket_fops);
if (!p)
* ad_beg_p returns pointer to first byte of addr data
* ad_end_p returns pointer to last byte of addr data
*/
-static int parse_dcc(char *data, const char *data_end, u_int32_t *ip,
+static int parse_dcc(char *data, const char *data_end, __be32 *ip,
u_int16_t *port, char **ad_beg_p, char **ad_end_p)
{
char *tmp;
return -1;
*ad_beg_p = data;
- *ip = simple_strtoul(data, &data, 10);
+ *ip = cpu_to_be32(simple_strtoul(data, &data, 10));
/* skip blanks between ip and port */
while (*data == ' ') {
int dir = CTINFO2DIR(ctinfo);
struct nf_conntrack_expect *exp;
struct nf_conntrack_tuple *tuple;
- u_int32_t dcc_ip;
+ __be32 dcc_ip;
u_int16_t dcc_port;
__be16 port;
int i, ret = NF_ACCEPT;
pr_debug("unable to parse dcc command\n");
continue;
}
- pr_debug("DCC bound ip/port: %u.%u.%u.%u:%u\n",
- HIPQUAD(dcc_ip), dcc_port);
+
+ pr_debug("DCC bound ip/port: %pI4:%u\n",
+ &dcc_ip, dcc_port);
/* dcc_ip can be the internal OR external (NAT'ed) IP */
tuple = &ct->tuplehash[dir].tuple;
- if (tuple->src.u3.ip != htonl(dcc_ip) &&
- tuple->dst.u3.ip != htonl(dcc_ip)) {
+ if (tuple->src.u3.ip != dcc_ip &&
+ tuple->dst.u3.ip != dcc_ip) {
if (net_ratelimit())
printk(KERN_WARNING
"Forged DCC command from %pI4: %pI4:%u\n",
return (((u64)hash * info->total_nodes) >> 32);
}
+static inline bool
+xt_cluster_ipv6_is_multicast(const struct in6_addr *addr)
+{
+ __be32 st = addr->s6_addr32[0];
+ return ((st & htonl(0xFF000000)) == htonl(0xFF000000));
+}
+
static inline bool
xt_cluster_is_multicast_addr(const struct sk_buff *skb, u_int8_t family)
{
is_multicast = ipv4_is_multicast(ip_hdr(skb)->daddr);
break;
case NFPROTO_IPV6:
- is_multicast = ipv6_addr_type(&ipv6_hdr(skb)->daddr) &
- IPV6_ADDR_MULTICAST;
+ is_multicast =
+ xt_cluster_ipv6_is_multicast(&ipv6_hdr(skb)->daddr);
break;
default:
WARN_ON(1);
goto out_nomem;
#ifdef CONFIG_PROC_FS
if (!proc_net_sctp) {
- struct proc_dir_entry *ent;
- ent = proc_mkdir("sctp", init_net.proc_net);
- if (ent) {
- ent->owner = THIS_MODULE;
- proc_net_sctp = ent;
- } else
+ proc_net_sctp = proc_mkdir("sctp", init_net.proc_net);
+ if (!proc_net_sctp)
goto out_free_percpu;
}
cd->proc_ent = proc_mkdir(cd->name, proc_net_rpc);
if (cd->proc_ent == NULL)
goto out_nomem;
- cd->proc_ent->owner = cd->owner;
cd->channel_ent = cd->content_ent = NULL;
p = proc_create_data("flush", S_IFREG|S_IRUSR|S_IWUSR,
cd->flush_ent = p;
if (p == NULL)
goto out_nomem;
- p->owner = cd->owner;
if (cd->cache_request || cd->cache_parse) {
p = proc_create_data("channel", S_IFREG|S_IRUSR|S_IWUSR,
cd->channel_ent = p;
if (p == NULL)
goto out_nomem;
- p->owner = cd->owner;
}
if (cd->cache_show) {
p = proc_create_data("content", S_IFREG|S_IRUSR|S_IWUSR,
cd->content_ent = p;
if (p == NULL)
goto out_nomem;
- p->owner = cd->owner;
}
return 0;
out_nomem:
rpc_proc_init(void)
{
dprintk("RPC: registering /proc/net/rpc\n");
- if (!proc_net_rpc) {
- struct proc_dir_entry *ent;
- ent = proc_mkdir("rpc", init_net.proc_net);
- if (ent) {
- ent->owner = THIS_MODULE;
- proc_net_rpc = ent;
- }
- }
+ if (!proc_net_rpc)
+ proc_net_rpc = proc_mkdir("rpc", init_net.proc_net);
}
void
switch (m->mode) {
case SVC_POOL_PERCPU:
{
- set_cpus_allowed_ptr(task, &cpumask_of_cpu(node));
+ set_cpus_allowed_ptr(task, cpumask_of(node));
break;
}
case SVC_POOL_PERNODE:
struct snd_info_entry *snd_oss_root;
#endif
-static inline void snd_info_entry_prepare(struct proc_dir_entry *de)
-{
- de->owner = THIS_MODULE;
-}
-
static void snd_remove_proc_entry(struct proc_dir_entry *parent,
struct proc_dir_entry *de)
{
.release = snd_info_entry_release,
};
-/**
- * snd_create_proc_entry - create a procfs entry
- * @name: the name of the proc file
- * @mode: the file permission bits, S_Ixxx
- * @parent: the parent proc-directory entry
- *
- * Creates a new proc file entry with the given name and permission
- * on the given directory.
- *
- * Returns the pointer of new instance or NULL on failure.
- */
-static struct proc_dir_entry *snd_create_proc_entry(const char *name, mode_t mode,
- struct proc_dir_entry *parent)
-{
- struct proc_dir_entry *p;
- p = create_proc_entry(name, mode, parent);
- if (p)
- snd_info_entry_prepare(p);
- return p;
-}
-
int __init snd_info_init(void)
{
struct proc_dir_entry *p;
- p = snd_create_proc_entry("asound", S_IFDIR | S_IRUGO | S_IXUGO, NULL);
+ p = create_proc_entry("asound", S_IFDIR | S_IRUGO | S_IXUGO, NULL);
if (p == NULL)
return -ENOMEM;
snd_proc_root = p;
return -ENXIO;
root = entry->parent == NULL ? snd_proc_root : entry->parent->p;
mutex_lock(&info_mutex);
- p = snd_create_proc_entry(entry->name, entry->mode, root);
+ p = create_proc_entry(entry->name, entry->mode, root);
if (!p) {
mutex_unlock(&info_mutex);
return -ENOMEM;
}
- p->owner = entry->module;
if (!S_ISDIR(entry->mode))
p->proc_fops = &snd_info_entry_operations;
p->size = entry->size;
projects / linux-2.6-omap-h63xx.git / commitdiff