def_bool y
select HAVE_IDE
select HAVE_OPROFILE
+ select HAVE_FUNCTION_TRACER if 64BIT
+ select HAVE_FUNCTION_GRAPH_TRACER if 64BIT
+ select HAVE_FUNCTION_TRACE_MCOUNT_TEST if 64BIT
select RTC_CLASS
select RTC_DRV_GENERIC
select INIT_ALL_POSSIBLE
+ select BUG
help
The PA-RISC microprocessor is designed by Hewlett-Packard and used
in many of their workstations & servers (HP9000 700 and 800 series,
config GENERIC_IRQ_PROBE
def_bool y
+config HAVE_LATENCYTOP_SUPPORT
+ def_bool y
+
config IRQ_PER_CPU
bool
default y
config PM
bool
+config STACKTRACE_SUPPORT
+ def_bool y
+
config ISA_DMA_API
bool
# Without this, "ld -r" results in .text sections that are too big
# (> 0x40000) for branches to reach stubs.
-cflags-y += -ffunction-sections
+ifndef CONFIG_FUNCTION_TRACER
+ cflags-y += -ffunction-sections
+endif
# select which processor to optimise for
cflags-$(CONFIG_PA7100) += -march=1.1 -mschedule=7100
* Since "a" is usually an address, use one spinlock per cacheline.
*/
# define ATOMIC_HASH_SIZE 4
-# define ATOMIC_HASH(a) (&(__atomic_hash[ (((unsigned long) a)/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
+# define ATOMIC_HASH(a) (&(__atomic_hash[ (((unsigned long) (a))/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
extern raw_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned;
#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
-#define atomic_add(i,v) ((void)(__atomic_add_return( ((int)i),(v))))
-#define atomic_sub(i,v) ((void)(__atomic_add_return(-((int)i),(v))))
+#define atomic_add(i,v) ((void)(__atomic_add_return( ((int)(i)),(v))))
+#define atomic_sub(i,v) ((void)(__atomic_add_return(-((int)(i)),(v))))
#define atomic_inc(v) ((void)(__atomic_add_return( 1,(v))))
#define atomic_dec(v) ((void)(__atomic_add_return( -1,(v))))
-#define atomic_add_return(i,v) (__atomic_add_return( ((int)i),(v)))
-#define atomic_sub_return(i,v) (__atomic_add_return(-((int)i),(v)))
+#define atomic_add_return(i,v) (__atomic_add_return( ((int)(i)),(v)))
+#define atomic_sub_return(i,v) (__atomic_add_return(-((int)(i)),(v)))
#define atomic_inc_return(v) (__atomic_add_return( 1,(v)))
#define atomic_dec_return(v) (__atomic_add_return( -1,(v)))
return v->counter;
}
-#define atomic64_add(i,v) ((void)(__atomic64_add_return( ((s64)i),(v))))
-#define atomic64_sub(i,v) ((void)(__atomic64_add_return(-((s64)i),(v))))
+#define atomic64_add(i,v) ((void)(__atomic64_add_return( ((s64)(i)),(v))))
+#define atomic64_sub(i,v) ((void)(__atomic64_add_return(-((s64)(i)),(v))))
#define atomic64_inc(v) ((void)(__atomic64_add_return( 1,(v))))
#define atomic64_dec(v) ((void)(__atomic64_add_return( -1,(v))))
-#define atomic64_add_return(i,v) (__atomic64_add_return( ((s64)i),(v)))
-#define atomic64_sub_return(i,v) (__atomic64_add_return(-((s64)i),(v)))
+#define atomic64_add_return(i,v) (__atomic64_add_return( ((s64)(i)),(v)))
+#define atomic64_sub_return(i,v) (__atomic64_add_return(-((s64)(i)),(v)))
#define atomic64_inc_return(v) (__atomic64_add_return( 1,(v)))
#define atomic64_dec_return(v) (__atomic64_add_return( -1,(v)))
#ifdef CONFIG_PA8X00
/* Only pa8800, pa8900 needs this */
+
+#include <asm/kmap_types.h>
+
#define ARCH_HAS_KMAP
void kunmap_parisc(void *addr);
__u64 gp;
} Elf64_Fdesc;
+#ifdef __KERNEL__
+
+#ifdef CONFIG_64BIT
+#define Elf_Fdesc Elf64_Fdesc
+#else
+#define Elf_Fdesc Elf32_Fdesc
+#endif /*CONFIG_64BIT*/
+
+#endif /*__KERNEL__*/
+
/* Legal values for p_type field of Elf32_Phdr/Elf64_Phdr. */
#define PT_HP_TLS (PT_LOOS + 0x0)
--- /dev/null
+#ifndef _ASM_PARISC_FTRACE_H
+#define _ASM_PARISC_FTRACE_H
+
+#ifndef __ASSEMBLY__
+extern void mcount(void);
+
+/*
+ * Stack of return addresses for functions of a thread.
+ * Used in struct thread_info
+ */
+struct ftrace_ret_stack {
+ unsigned long ret;
+ unsigned long func;
+ unsigned long long calltime;
+};
+
+/*
+ * Primary handler of a function return.
+ * It relays on ftrace_return_to_handler.
+ * Defined in entry.S
+ */
+extern void return_to_handler(void);
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_PARISC_FTRACE_H */
*/
#define STRICT_MM_TYPECHECKS
#ifdef STRICT_MM_TYPECHECKS
-typedef struct { unsigned long pte;
-#if !defined(CONFIG_64BIT)
- unsigned long future_flags;
- /* XXX: it's possible to remove future_flags and change BITS_PER_PTE_ENTRY
- to 2, but then strangely the identical 32bit kernel boots on a
- c3000(pa20), but not any longer on a 715(pa11).
- Still investigating... HelgeD.
- */
-#endif
-} pte_t; /* either 32 or 64bit */
+typedef struct { unsigned long pte; } pte_t; /* either 32 or 64bit */
/* NOTE: even on 64 bits, these entries are __u32 because we allocate
* the pmd and pgd in ZONE_DMA (i.e. under 4GB) */
#define BITS_PER_PMD_ENTRY 2
#define BITS_PER_PGD_ENTRY 2
#else
-#define BITS_PER_PTE_ENTRY 3
+#define BITS_PER_PTE_ENTRY 2
#define BITS_PER_PMD_ENTRY 2
#define BITS_PER_PGD_ENTRY BITS_PER_PMD_ENTRY
#endif
#define PDC_MODEL_CPU_ID 6 /* returns cpu-id (only newer machines!) */
#define PDC_MODEL_CAPABILITIES 7 /* returns OS32/OS64-flags */
/* Values for PDC_MODEL_CAPABILITIES non-equivalent virtual aliasing support */
+#define PDC_MODEL_OS64 (1 << 0)
+#define PDC_MODEL_OS32 (1 << 1)
#define PDC_MODEL_IOPDIR_FDC (1 << 2)
#define PDC_MODEL_NVA_MASK (3 << 4)
#define PDC_MODEL_NVA_SUPPORTED (0 << 4)
#ifdef __KERNEL__
+#include <asm/page.h> /* for __PAGE_OFFSET */
+
extern int pdc_type;
/* Values for pdc_type */
printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, (unsigned long)pgd_val(e))
/* This is the size of the initially mapped kernel memory */
-#ifdef CONFIG_64BIT
#define KERNEL_INITIAL_ORDER 24 /* 0 to 1<<24 = 16MB */
-#else
-#define KERNEL_INITIAL_ORDER 23 /* 0 to 1<<23 = 8MB */
-#endif
#define KERNEL_INITIAL_SIZE (1 << KERNEL_INITIAL_ORDER)
#if defined(CONFIG_64BIT) && defined(CONFIG_PARISC_PAGE_SIZE_4KB)
/* Definitions for 1st level */
#define PGDIR_SHIFT (PMD_SHIFT + BITS_PER_PMD)
+#if (PGDIR_SHIFT + PAGE_SHIFT + PGD_ORDER - BITS_PER_PGD_ENTRY) > BITS_PER_LONG
+#define BITS_PER_PGD (BITS_PER_LONG - PGDIR_SHIFT)
+#else
#define BITS_PER_PGD (PAGE_SHIFT + PGD_ORDER - BITS_PER_PGD_ENTRY)
+#endif
#define PGDIR_SIZE (1UL << PGDIR_SHIFT)
#define PGDIR_MASK (~(PGDIR_SIZE-1))
#define PTRS_PER_PGD (1UL << BITS_PER_PGD)
#define USER_PTRS_PER_PGD PTRS_PER_PGD
+#ifdef CONFIG_64BIT
#define MAX_ADDRBITS (PGDIR_SHIFT + BITS_PER_PGD)
#define MAX_ADDRESS (1UL << MAX_ADDRBITS)
-
#define SPACEID_SHIFT (MAX_ADDRBITS - 32)
+#else
+#define MAX_ADDRBITS (BITS_PER_LONG)
+#define MAX_ADDRESS (1UL << MAX_ADDRBITS)
+#define SPACEID_SHIFT 0
+#endif
/* This calculates the number of initial pages we need for the initial
* page tables */
extern void smp_send_all_nop(void);
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
#endif /* !ASSEMBLY */
process.o processor.o pdc_cons.o pdc_chassis.o unwind.o \
topology.o
+ifdef CONFIG_FUNCTION_TRACER
+# Do not profile debug and lowlevel utilities
+CFLAGS_REMOVE_ftrace.o = -pg
+CFLAGS_REMOVE_cache.o = -pg
+CFLAGS_REMOVE_irq.o = -pg
+CFLAGS_REMOVE_pacache.o = -pg
+CFLAGS_REMOVE_perf.o = -pg
+CFLAGS_REMOVE_traps.o = -pg
+CFLAGS_REMOVE_unaligned.o = -pg
+CFLAGS_REMOVE_unwind.o = -pg
+endif
+
obj-$(CONFIG_SMP) += smp.o
obj-$(CONFIG_PA11) += pci-dma.o
obj-$(CONFIG_PCI) += pci.o
obj-$(CONFIG_MODULES) += module.o
obj-$(CONFIG_64BIT) += binfmt_elf32.o sys_parisc32.o signal32.o
+obj-$(CONFIG_STACKTRACE)+= stacktrace.o
# only supported for PCX-W/U in 64-bit mode at the moment
obj-$(CONFIG_64BIT) += perf.o perf_asm.o
+obj-$(CONFIG_FUNCTION_TRACER) += ftrace.o
+obj-$(CONFIG_FUNCTION_GRAPH_TRACER) += ftrace.o
STREG \pte,0(\ptep)
.endm
+ /* bitshift difference between a PFN (based on kernel's PAGE_SIZE)
+ * to a CPU TLB 4k PFN (4k => 12 bits to shift) */
+ #define PAGE_ADD_SHIFT (PAGE_SHIFT-12)
+
+ /* Drop prot bits and convert to page addr for iitlbt and idtlbt */
+ .macro convert_for_tlb_insert20 pte
+ extrd,u \pte,(63-ASM_PFN_PTE_SHIFT)+(63-58)+PAGE_ADD_SHIFT,\
+ 64-PAGE_SHIFT-PAGE_ADD_SHIFT,\pte
+ depdi _PAGE_SIZE_ENCODING_DEFAULT,63,\
+ (63-58)+PAGE_ADD_SHIFT,\pte
+ .endm
+
/* Convert the pte and prot to tlb insertion values. How
* this happens is quite subtle, read below */
.macro make_insert_tlb spc,pte,prot
depi 1,12,1,\prot
/* Drop prot bits and convert to page addr for iitlbt and idtlbt */
- extrd,u \pte,(63-ASM_PFN_PTE_SHIFT)+(63-58),64-PAGE_SHIFT,\pte
- depdi _PAGE_SIZE_ENCODING_DEFAULT,63,63-58,\pte
+ convert_for_tlb_insert20 \pte
.endm
/* Identical macro to make_insert_tlb above, except it
/* Get rid of prot bits and convert to page addr for iitlba */
- depi _PAGE_SIZE_ENCODING_DEFAULT,31,ASM_PFN_PTE_SHIFT,\pte
- extru \pte,24,25,\pte
+ depi 0,31,ASM_PFN_PTE_SHIFT,\pte
+ SHRREG \pte,(ASM_PFN_PTE_SHIFT-(31-26)),\pte
.endm
/* This is for ILP32 PA2.0 only. The TLB insertion needs
depdi,z 7,7,3,prot
depdi 1,10,1,prot
- /* Get rid of prot bits and convert to page addr for idtlbt */
+ /* Drop prot bits from pte and convert to page addr for idtlbt */
+ convert_for_tlb_insert20 pte
- depdi 0,63,12,pte
- extrd,u pte,56,52,pte
idtlbt pte,prot
rfir
/* Get rid of prot bits and convert to page addr for idtlba */
- depi 0,31,12,pte
- extru pte,24,25,pte
+ depi 0,31,ASM_PFN_PTE_SHIFT,pte
+ SHRREG pte,(ASM_PFN_PTE_SHIFT-(31-26)),pte
mfsp %sr1,t0 /* Save sr1 so we can use it in tlb inserts */
mtsp spc,%sr1
depdi,z 7,7,3,prot
depdi 1,10,1,prot
- /* Get rid of prot bits and convert to page addr for idtlbt */
+ /* Drop prot bits from pte and convert to page addr for idtlbt */
+ convert_for_tlb_insert20 pte
- depdi 0,63,12,pte
- extrd,u pte,56,32,pte
idtlbt pte,prot
rfir
ENDPROC(syscall_exit)
+#ifdef CONFIG_FUNCTION_TRACER
+ .import ftrace_function_trampoline,code
+ENTRY(_mcount)
+ copy %r3, %arg2
+ b ftrace_function_trampoline
+ nop
+ENDPROC(_mcount)
+
+ENTRY(return_to_handler)
+ load32 return_trampoline, %rp
+ copy %ret0, %arg0
+ copy %ret1, %arg1
+ b ftrace_return_to_handler
+ nop
+return_trampoline:
+ copy %ret0, %rp
+ copy %r23, %ret0
+ copy %r24, %ret1
+
+.globl ftrace_stub
+ftrace_stub:
+ bv %r0(%rp)
+ nop
+ENDPROC(return_to_handler)
+#endif /* CONFIG_FUNCTION_TRACER */
+
+
get_register:
/*
* get_register is used by the non access tlb miss handlers to
pdc_result[0] = 0; /* preset zero (call may not be implemented!) */
retval = mem_pdc_call(PDC_MODEL, PDC_MODEL_CAPABILITIES, __pa(pdc_result), 0);
convert_to_wide(pdc_result);
- *capabilities = pdc_result[0];
+ if (retval == PDC_OK) {
+ *capabilities = pdc_result[0];
+ } else {
+ *capabilities = PDC_MODEL_OS32;
+ }
spin_unlock_irqrestore(&pdc_lock, flags);
return retval;
--- /dev/null
+/*
+ * Code for tracing calls in Linux kernel.
+ * Copyright (C) 2009 Helge Deller <deller@gmx.de>
+ *
+ * based on code for x86 which is:
+ * Copyright (C) 2007-2008 Steven Rostedt <srostedt@redhat.com>
+ *
+ * future possible enhancements:
+ * - add CONFIG_DYNAMIC_FTRACE
+ * - add CONFIG_STACK_TRACER
+ */
+
+#include <linux/init.h>
+#include <linux/ftrace.h>
+
+#include <asm/sections.h>
+#include <asm/ftrace.h>
+
+
+
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+
+/* Add a function return address to the trace stack on thread info.*/
+static int push_return_trace(unsigned long ret, unsigned long long time,
+ unsigned long func, int *depth)
+{
+ int index;
+
+ if (!current->ret_stack)
+ return -EBUSY;
+
+ /* The return trace stack is full */
+ if (current->curr_ret_stack == FTRACE_RETFUNC_DEPTH - 1) {
+ atomic_inc(¤t->trace_overrun);
+ return -EBUSY;
+ }
+
+ index = ++current->curr_ret_stack;
+ barrier();
+ current->ret_stack[index].ret = ret;
+ current->ret_stack[index].func = func;
+ current->ret_stack[index].calltime = time;
+ *depth = index;
+
+ return 0;
+}
+
+/* Retrieve a function return address to the trace stack on thread info.*/
+static void pop_return_trace(struct ftrace_graph_ret *trace, unsigned long *ret)
+{
+ int index;
+
+ index = current->curr_ret_stack;
+
+ if (unlikely(index < 0)) {
+ ftrace_graph_stop();
+ WARN_ON(1);
+ /* Might as well panic, otherwise we have no where to go */
+ *ret = (unsigned long)
+ dereference_function_descriptor(&panic);
+ return;
+ }
+
+ *ret = current->ret_stack[index].ret;
+ trace->func = current->ret_stack[index].func;
+ trace->calltime = current->ret_stack[index].calltime;
+ trace->overrun = atomic_read(¤t->trace_overrun);
+ trace->depth = index;
+ barrier();
+ current->curr_ret_stack--;
+
+}
+
+/*
+ * Send the trace to the ring-buffer.
+ * @return the original return address.
+ */
+unsigned long ftrace_return_to_handler(unsigned long retval0,
+ unsigned long retval1)
+{
+ struct ftrace_graph_ret trace;
+ unsigned long ret;
+
+ pop_return_trace(&trace, &ret);
+ trace.rettime = cpu_clock(raw_smp_processor_id());
+ ftrace_graph_return(&trace);
+
+ if (unlikely(!ret)) {
+ ftrace_graph_stop();
+ WARN_ON(1);
+ /* Might as well panic. What else to do? */
+ ret = (unsigned long)
+ dereference_function_descriptor(&panic);
+ }
+
+ /* HACK: we hand over the old functions' return values
+ in %r23 and %r24. Assembly in entry.S will take care
+ and move those to their final registers %ret0 and %ret1 */
+ asm( "copy %0, %%r23 \n\t"
+ "copy %1, %%r24 \n" : : "r" (retval0), "r" (retval1) );
+
+ return ret;
+}
+
+/*
+ * Hook the return address and push it in the stack of return addrs
+ * in current thread info.
+ */
+void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr)
+{
+ unsigned long old;
+ unsigned long long calltime;
+ struct ftrace_graph_ent trace;
+
+ if (unlikely(atomic_read(¤t->tracing_graph_pause)))
+ return;
+
+ old = *parent;
+ *parent = (unsigned long)
+ dereference_function_descriptor(&return_to_handler);
+
+ if (unlikely(!__kernel_text_address(old))) {
+ ftrace_graph_stop();
+ *parent = old;
+ WARN_ON(1);
+ return;
+ }
+
+ calltime = cpu_clock(raw_smp_processor_id());
+
+ if (push_return_trace(old, calltime,
+ self_addr, &trace.depth) == -EBUSY) {
+ *parent = old;
+ return;
+ }
+
+ trace.func = self_addr;
+
+ /* Only trace if the calling function expects to */
+ if (!ftrace_graph_entry(&trace)) {
+ current->curr_ret_stack--;
+ *parent = old;
+ }
+}
+
+#endif /* CONFIG_FUNCTION_GRAPH_TRACER */
+
+
+void ftrace_function_trampoline(unsigned long parent,
+ unsigned long self_addr,
+ unsigned long org_sp_gr3)
+{
+ extern ftrace_func_t ftrace_trace_function;
+
+ if (function_trace_stop)
+ return;
+
+ if (ftrace_trace_function != ftrace_stub) {
+ ftrace_trace_function(parent, self_addr);
+ return;
+ }
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+ if (ftrace_graph_entry && ftrace_graph_return) {
+ unsigned long sp;
+ unsigned long *parent_rp;
+
+ asm volatile ("copy %%r30, %0" : "=r"(sp));
+ /* sanity check: is stack pointer which we got from
+ assembler function in entry.S in a reasonable
+ range compared to current stack pointer? */
+ if ((sp - org_sp_gr3) > 0x400)
+ return;
+
+ /* calculate pointer to %rp in stack */
+ parent_rp = (unsigned long *) org_sp_gr3 - 0x10;
+ /* sanity check: parent_rp should hold parent */
+ if (*parent_rp != parent)
+ return;
+
+ prepare_ftrace_return(parent_rp, self_addr);
+ return;
+ }
+#endif
+}
+
next_cpu++; /* assign to "next" CPU we want this bugger on */
/* validate entry */
- while ((next_cpu < NR_CPUS) &&
+ while ((next_cpu < nr_cpu_ids) &&
(!per_cpu(cpu_data, next_cpu).txn_addr ||
!cpu_online(next_cpu)))
next_cpu++;
- if (next_cpu >= NR_CPUS)
+ if (next_cpu >= nr_cpu_ids)
next_cpu = 0; /* nothing else, assign monarch */
return txn_affinity_addr(virt_irq, next_cpu);
#include <linux/string.h>
#include <linux/kernel.h>
#include <linux/bug.h>
-#include <linux/uaccess.h>
-#include <asm/sections.h>
#include <asm/unwind.h>
#if 0
Elf32_Addr addr;
};
-#define Elf_Fdesc Elf32_Fdesc
-
struct stub_entry {
Elf32_Word insns[2]; /* each stub entry has two insns */
};
Elf64_Addr addr;
};
-#define Elf_Fdesc Elf64_Fdesc
-
struct stub_entry {
Elf64_Word insns[4]; /* each stub entry has four insns */
};
deregister_unwind_table(mod);
module_bug_cleanup(mod);
}
-
-#ifdef CONFIG_64BIT
-void *dereference_function_descriptor(void *ptr)
-{
- Elf64_Fdesc *desc = ptr;
- void *p;
-
- if (!probe_kernel_address(&desc->addr, p))
- ptr = p;
- return ptr;
-}
-#endif
EXPORT_SYMBOL(pfnnid_map);
#endif
+#ifdef CONFIG_FUNCTION_TRACER
+extern void _mcount(void);
+EXPORT_SYMBOL(_mcount);
+#endif
+
/* from pacache.S -- needed for copy_page */
EXPORT_SYMBOL(copy_user_page_asm);
#include <linux/stddef.h>
#include <linux/unistd.h>
#include <linux/kallsyms.h>
+#include <linux/uaccess.h>
#include <asm/io.h>
#include <asm/asm-offsets.h>
#include <asm/pdc.h>
#include <asm/pdc_chassis.h>
#include <asm/pgalloc.h>
-#include <asm/uaccess.h>
#include <asm/unwind.h>
+#include <asm/sections.h>
/*
* The idle thread. There's no useful work to be
However, these last 3 args are only examined
if the proper flags are set. */
- int __user *child_tidptr;
- int __user *parent_tidptr;
+ int __user *parent_tidptr = (int __user *)regs->gr[24];
+ int __user *child_tidptr = (int __user *)regs->gr[22];
/* usp must be word aligned. This also prevents users from
* passing in the value 1 (which is the signal for a special
if (usp == 0)
usp = regs->gr[30];
- if (clone_flags & CLONE_PARENT_SETTID)
- parent_tidptr = (int __user *)regs->gr[24];
- else
- parent_tidptr = NULL;
-
- if (clone_flags & (CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID))
- child_tidptr = (int __user *)regs->gr[22];
- else
- child_tidptr = NULL;
-
return do_fork(clone_flags, usp, regs, 0, parent_tidptr, child_tidptr);
}
} while (count++ < 16);
return 0;
}
+
+#ifdef CONFIG_64BIT
+void *dereference_function_descriptor(void *ptr)
+{
+ Elf64_Fdesc *desc = ptr;
+ void *p;
+
+ if (!probe_kernel_address(&desc->addr, p))
+ ptr = p;
+ return ptr;
+}
+#endif
struct cpuinfo_parisc *p;
#ifdef CONFIG_SMP
- if (num_online_cpus() >= NR_CPUS) {
- printk(KERN_INFO "num_online_cpus() >= NR_CPUS\n");
+ if (num_online_cpus() >= nr_cpu_ids) {
+ printk(KERN_INFO "num_online_cpus() >= nr_cpu_ids\n");
return 1;
}
#else
*/
#ifdef CONFIG_SMP
if (cpuid) {
- cpu_set(cpuid, cpu_present_map);
+ set_cpu_present(cpuid, true);
cpu_up(cpuid);
}
#endif
boot_cpu_data.cpu_hz / 1000000,
boot_cpu_data.cpu_hz % 1000000 );
+ seq_printf(m, "capabilities\t:");
+ if (boot_cpu_data.pdc.capabilities & PDC_MODEL_OS32)
+ seq_printf(m, " os32");
+ if (boot_cpu_data.pdc.capabilities & PDC_MODEL_OS64)
+ seq_printf(m, " os64");
+ seq_printf(m, "\n");
+
seq_printf(m, "model\t\t: %s\n"
"model name\t: %s\n",
boot_cpu_data.pdc.sys_model_name,
#include <linux/err.h>
#include <linux/delay.h>
#include <linux/bitops.h>
+#include <linux/ftrace.h>
#include <asm/system.h>
#include <asm/atomic.h>
{
/* REVISIT : redirect I/O Interrupts to another CPU? */
/* REVISIT : does PM *know* this CPU isn't available? */
- cpu_clear(smp_processor_id(), cpu_online_map);
+ set_cpu_online(smp_processor_id(), false);
local_irq_disable();
for (;;)
;
}
-irqreturn_t
+irqreturn_t __irq_entry
ipi_interrupt(int irq, void *dev_id)
{
int this_cpu = smp_processor_id();
}
static void
-send_IPI_mask(cpumask_t mask, enum ipi_message_type op)
+send_IPI_mask(const struct cpumask *mask, enum ipi_message_type op)
{
int cpu;
- for_each_cpu_mask(cpu, mask)
+ for_each_cpu(cpu, mask)
ipi_send(cpu, op);
}
send_IPI_allbutself(IPI_NOP);
}
-void arch_send_call_function_ipi(cpumask_t mask)
+void arch_send_call_function_ipi_mask(const struct cpumask *mask)
{
send_IPI_mask(mask, IPI_CALL_FUNC);
}
mb();
/* Well, support 2.4 linux scheme as well. */
- if (cpu_test_and_set(cpunum, cpu_online_map))
+ if (cpu_isset(cpunum, cpu_online_map))
{
extern void machine_halt(void); /* arch/parisc.../process.c */
printk(KERN_CRIT "CPU#%d already initialized!\n", cpunum);
machine_halt();
}
+ set_cpu_online(cpunum, true);
/* Initialise the idle task for this CPU */
atomic_inc(&init_mm.mm_count);
/* Setup BSP mappings */
printk(KERN_INFO "SMP: bootstrap CPU ID is %d\n", bootstrap_processor);
- cpu_set(bootstrap_processor, cpu_online_map);
- cpu_set(bootstrap_processor, cpu_present_map);
+ set_cpu_online(bootstrap_processor, true);
+ set_cpu_present(bootstrap_processor, true);
}
*/
void __init smp_prepare_cpus(unsigned int max_cpus)
{
- cpus_clear(cpu_present_map);
- cpu_set(0, cpu_present_map);
+ init_cpu_present(cpumask_of(0));
parisc_max_cpus = max_cpus;
if (!max_cpus)
--- /dev/null
+/*
+ * Stack trace management functions
+ *
+ * Copyright (C) 2009 Helge Deller <deller@gmx.de>
+ * based on arch/x86/kernel/stacktrace.c by Ingo Molnar <mingo@redhat.com>
+ * and parisc unwind functions by Randolph Chung <tausq@debian.org>
+ *
+ * TODO: Userspace stacktrace (CONFIG_USER_STACKTRACE_SUPPORT)
+ */
+#include <linux/module.h>
+#include <linux/stacktrace.h>
+
+#include <asm/unwind.h>
+
+static void dump_trace(struct task_struct *task, struct stack_trace *trace)
+{
+ struct unwind_frame_info info;
+
+ /* initialize unwind info */
+ if (task == current) {
+ unsigned long sp;
+ struct pt_regs r;
+HERE:
+ asm volatile ("copy %%r30, %0" : "=r"(sp));
+ memset(&r, 0, sizeof(struct pt_regs));
+ r.iaoq[0] = (unsigned long)&&HERE;
+ r.gr[2] = (unsigned long)__builtin_return_address(0);
+ r.gr[30] = sp;
+ unwind_frame_init(&info, task, &r);
+ } else {
+ unwind_frame_init_from_blocked_task(&info, task);
+ }
+
+ /* unwind stack and save entries in stack_trace struct */
+ trace->nr_entries = 0;
+ while (trace->nr_entries < trace->max_entries) {
+ if (unwind_once(&info) < 0 || info.ip == 0)
+ break;
+
+ if (__kernel_text_address(info.ip))
+ trace->entries[trace->nr_entries++] = info.ip;
+ }
+}
+
+
+/*
+ * Save stack-backtrace addresses into a stack_trace buffer.
+ */
+void save_stack_trace(struct stack_trace *trace)
+{
+ dump_trace(current, trace);
+ if (trace->nr_entries < trace->max_entries)
+ trace->entries[trace->nr_entries++] = ULONG_MAX;
+}
+EXPORT_SYMBOL_GPL(save_stack_trace);
+
+void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
+{
+ dump_trace(tsk, trace);
+ if (trace->nr_entries < trace->max_entries)
+ trace->entries[trace->nr_entries++] = ULONG_MAX;
+}
+EXPORT_SYMBOL_GPL(save_stack_trace_tsk);
/*********************************************************
- Light-weight-syscall code
+ 32/64-bit Light-Weight-Syscall ABI
- r20 - lws number
- r26,r25,r24,r23,r22 - Input registers
- r28 - Function return register
- r21 - Error code.
+ * - Indicates a hint for userspace inline asm
+ implementations.
- Scracth: Any of the above that aren't being
- currently used, including r1.
+ Syscall number (caller-saves)
+ - %r20
+ * In asm clobber.
- Return pointer: r31 (Not usable)
+ Argument registers (caller-saves)
+ - %r26, %r25, %r24, %r23, %r22
+ * In asm input.
+
+ Return registers (caller-saves)
+ - %r28 (return), %r21 (errno)
+ * In asm output.
+
+ Caller-saves registers
+ - %r1, %r27, %r29
+ - %r2 (return pointer)
+ - %r31 (ble link register)
+ * In asm clobber.
+
+ Callee-saves registers
+ - %r3-%r18
+ - %r30 (stack pointer)
+ * Not in asm clobber.
+
+ If userspace is 32-bit:
+ Callee-saves registers
+ - %r19 (32-bit PIC register)
+
+ Differences from 32-bit calling convention:
+ - Syscall number in %r20
+ - Additional argument register %r22 (arg4)
+ - Callee-saves %r19.
+
+ If userspace is 64-bit:
+ Callee-saves registers
+ - %r27 (64-bit PIC register)
+
+ Differences from 64-bit calling convention:
+ - Syscall number in %r20
+ - Additional argument register %r22 (arg4)
+ - Callee-saves %r27.
Error codes returned by entry path:
b,n lws_compare_and_swap
#else
/* If we are not a 64-bit kernel, then we don't
- * implement having 64-bit input registers
+ * have 64-bit input registers, and calling
+ * the 64-bit LWS CAS returns ENOSYS.
*/
b,n lws_exit_nosys
#endif
/*
All light-weight-syscall atomic operations
will use this set of locks
+
+ NOTE: The lws_lock_start symbol must be
+ at least 16-byte aligned for safe use
+ with ldcw.
*/
.section .data
.align PAGE_SIZE
ENTRY(lws_lock_start)
/* lws locks */
- .align 16
.rept 16
/* Keep locks aligned at 16-bytes */
.word 1
#include <linux/profile.h>
#include <linux/clocksource.h>
#include <linux/platform_device.h>
+#include <linux/ftrace.h>
#include <asm/uaccess.h>
#include <asm/io.h>
* held off for an arbitrarily long period of time by interrupts being
* disabled, so we may miss one or more ticks.
*/
-irqreturn_t timer_interrupt(int irq, void *dev_id)
+irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
{
unsigned long now;
unsigned long next_tick;
oops_in_progress = 1;
+ oops_enter();
+
/* Amuse the user in a SPARC fashion */
if (err) printk(
KERN_CRIT " _______________________________ \n"
panic("Fatal exception");
}
+ oops_exit();
do_exit(SIGSEGV);
}
panic(msg);
}
-void handle_interruption(int code, struct pt_regs *regs)
+void notrace handle_interruption(int code, struct pt_regs *regs)
{
unsigned long fault_address = 0;
unsigned long fault_space = 0;
TEXT_TEXT
SCHED_TEXT
LOCK_TEXT
+ KPROBES_TEXT
+ IRQENTRY_TEXT
*(.text.do_softirq)
*(.text.sys_exit)
*(.text.do_sigaltstack)
{
int codesize, reservedpages, datasize, initsize;
+ /* Do sanity checks on page table constants */
+ BUILD_BUG_ON(PTE_ENTRY_SIZE != sizeof(pte_t));
+ BUILD_BUG_ON(PMD_ENTRY_SIZE != sizeof(pmd_t));
+ BUILD_BUG_ON(PGD_ENTRY_SIZE != sizeof(pgd_t));
+ BUILD_BUG_ON(PAGE_SHIFT + BITS_PER_PTE + BITS_PER_PMD + BITS_PER_PGD
+ > BITS_PER_LONG);
+
high_memory = __va((max_pfn << PAGE_SHIFT));
#ifndef CONFIG_DISCONTIGMEM
asp.hpa = ASP_INTERRUPT_ADDR;
printk(KERN_INFO "%s version %d at 0x%lx found.\n",
- asp.name, asp.version, dev->hpa.start);
+ asp.name, asp.version, (unsigned long)dev->hpa.start);
/* the IRQ ASP should use */
ret = -EBUSY;
}
ioc->avg_search[ioc->avg_idx++] = cr_start;
ioc->avg_idx &= CCIO_SEARCH_SAMPLE - 1;
-#endif
-#ifdef CCIO_COLLECT_STATS
ioc->used_pages += pages_needed;
#endif
/*
unsigned long mask = ~(~0UL >> pages_mapped);
CCIO_FREE_MAPPINGS(ioc, res_idx, mask, 8);
#else
- CCIO_FREE_MAPPINGS(ioc, res_idx, 0xff, 8);
+ CCIO_FREE_MAPPINGS(ioc, res_idx, 0xffUL, 8);
#endif
} else if(pages_mapped <= 16) {
- CCIO_FREE_MAPPINGS(ioc, res_idx, 0xffff, 16);
+ CCIO_FREE_MAPPINGS(ioc, res_idx, 0xffffUL, 16);
} else if(pages_mapped <= 32) {
CCIO_FREE_MAPPINGS(ioc, res_idx, ~(unsigned int)0, 32);
#ifdef __LP64__
while (ioc != NULL) {
unsigned int total_pages = ioc->res_size << 3;
+#ifdef CCIO_COLLECT_STATS
unsigned long avg = 0, min, max;
int j;
+#endif
len += seq_printf(m, "%s\n", ioc->name);
avg /= CCIO_SEARCH_SAMPLE;
len += seq_printf(m, " Bitmap search : %ld/%ld/%ld (min/avg/max CPU Cycles)\n",
min, avg, max);
-#endif
-#ifdef CCIO_COLLECT_STATS
+
len += seq_printf(m, "pci_map_single(): %8ld calls %8ld pages (avg %d/1000)\n",
ioc->msingle_calls, ioc->msingle_pages,
(int)((ioc->msingle_pages * 1000)/ioc->msingle_calls));
result = insert_resource(&iomem_resource, res);
if (result < 0) {
printk(KERN_ERR "%s() failed to claim CCIO bus address space (%08lx,%08lx)\n",
- __func__, res->start, res->end);
+ __func__, (unsigned long)res->start, (unsigned long)res->end);
}
}
ioc->name = dev->id.hversion == U2_IOA_RUNWAY ? "U2" : "UTurn";
- printk(KERN_INFO "Found %s at 0x%lx\n", ioc->name, dev->hpa.start);
+ printk(KERN_INFO "Found %s at 0x%lx\n", ioc->name,
+ (unsigned long)dev->hpa.start);
for (i = 0; i < ioc_count; i++) {
ioc_p = &(*ioc_p)->next;
result = ccio_request_resource(dino_dev->hba.dev, &res[i]);
if (result < 0) {
- printk(KERN_ERR "%s: failed to claim PCI Bus address space %d (0x%lx-0x%lx)!\n", name, i, res[i].start, res[i].end);
+ printk(KERN_ERR "%s: failed to claim PCI Bus address "
+ "space %d (0x%lx-0x%lx)!\n", name, i,
+ (unsigned long)res[i].start, (unsigned long)res[i].end);
return result;
}
}
if (request_resource(&ioport_resource, res) < 0) {
printk(KERN_ERR "%s: request I/O Port region failed "
"0x%lx/%lx (hpa 0x%p)\n",
- name, res->start, res->end, dino_dev->hba.base_addr);
+ name, (unsigned long)res->start, (unsigned long)res->end,
+ dino_dev->hba.base_addr);
return 1;
}
char *name = is_mongoose(dev) ? "Mongoose" : "Wax";
printk(KERN_INFO "%s EISA Adapter found at 0x%08lx\n",
- name, dev->hpa.start);
+ name, (unsigned long)dev->hpa.start);
eisa_dev.hba.dev = dev;
eisa_dev.hba.iommu = ccio_get_iommu(dev);
res->start = mem_parent->start + get_24(buf+len+2);
res->end = res->start + get_16(buf+len+5)*1024;
res->flags = IORESOURCE_MEM;
- printk("memory %lx-%lx ", res->start, res->end);
+ printk("memory %lx-%lx ", (unsigned long)res->start, (unsigned long)res->end);
result = request_resource(mem_parent, res);
if (result < 0) {
printk("\n" KERN_ERR "EISA Enumerator: failed to claim EISA Bus address space!\n");
res->start = get_16(buf+len+1);
res->end = get_16(buf+len+1)+(c&HPEE_PORT_SIZE_MASK)+1;
res->flags = IORESOURCE_IO;
- printk("ioports %lx-%lx ", res->start, res->end);
+ printk("ioports %lx-%lx ", (unsigned long)res->start, (unsigned long)res->end);
result = request_resource(io_parent, res);
if (result < 0) {
printk("\n" KERN_ERR "EISA Enumerator: failed to claim EISA Bus address space!\n");
if (dest_cpu < 0)
return;
- irq_desc[irq].affinity = cpumask_of_cpu(dest_cpu);
+ cpumask_copy(irq_desc[irq].affinity, cpumask_of(dest_cpu));
vi->txn_addr = txn_affinity_addr(irq, dest_cpu);
spin_lock_irqsave(&iosapic_lock, flags);
*
* (c) Copyright 2000 Red Hat Software
* (c) Copyright 2000 Helge Deller <hdeller@redhat.com>
- * (c) Copyright 2001-2005 Helge Deller <deller@gmx.de>
+ * (c) Copyright 2001-2009 Helge Deller <deller@gmx.de>
* (c) Copyright 2001 Randolph Chung <tausq@debian.org>
*
* This program is free software; you can redistribute it and/or modify
proc_pdc_root = proc_mkdir("pdc", 0);
if (!proc_pdc_root) return -1;
- proc_pdc_root->owner = THIS_MODULE;
ent = create_proc_entry("led", S_IFREG|S_IRUGO|S_IWUSR, proc_pdc_root);
if (!ent) return -1;
ent->data = (void *)LED_NOLCD; /* LED */
ent->read_proc = led_proc_read;
ent->write_proc = led_proc_write;
- ent->owner = THIS_MODULE;
if (led_type == LED_HASLCD)
{
ent->data = (void *)LED_HASLCD; /* LCD */
ent->read_proc = led_proc_read;
ent->write_proc = led_proc_write;
- ent->owner = THIS_MODULE;
}
return 0;
if (likely(led_lanrxtx)) currentleds |= led_get_net_activity();
if (likely(led_diskio)) currentleds |= led_get_diskio_activity();
- /* blink all LEDs twice a second if we got an Oops (HPMC) */
- if (unlikely(oops_in_progress))
- currentleds = (count_HZ<=(HZ/2)) ? 0 : 0xff;
+ /* blink LEDs if we got an Oops (HPMC) */
+ if (unlikely(oops_in_progress)) {
+ if (boot_cpu_data.cpu_type >= pcxl2) {
+ /* newer machines don't have loadavg. LEDs, so we
+ * let all LEDs blink twice per second instead */
+ currentleds = (count_HZ <= (HZ/2)) ? 0 : 0xff;
+ } else {
+ /* old machines: blink loadavg. LEDs twice per second */
+ if (count_HZ <= (HZ/2))
+ currentleds &= ~(LED4|LED5|LED6|LED7);
+ else
+ currentleds |= (LED4|LED5|LED6|LED7);
+ }
+ }
if (currentleds != lastleds)
{
/* Cancel the work item and delete the queue */
if (led_wq) {
- cancel_rearming_delayed_workqueue(led_wq, &led_task);
+ cancel_delayed_work_sync(&led_task);
destroy_workqueue(led_wq);
led_wq = NULL;
}
/* temporarily disable the led work task */
if (led_wq)
- cancel_rearming_delayed_workqueue(led_wq, &led_task);
+ cancel_delayed_work_sync(&led_task);
/* copy display string to buffer for procfs */
strlcpy(lcd_text, str, sizeof(lcd_text));
alpha)
[ -f "${objtree}/arch/alpha/boot/vmlinux.gz" ] && cp -v -- "${objtree}/arch/alpha/boot/vmlinux.gz" "${tmpdir}/boot/vmlinuz-${KERNELRELEASE}"
;;
+ parisc*)
+ [ -f "${KBUILD_IMAGE}" ] && cp -v -- "${KBUILD_IMAGE}" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}"
+ [ -f "${objtree}/lifimage" ] && cp -v -- "${objtree}/lifimage" "${tmpdir}/boot/lifimage-${KERNELRELEASE}"
+ ;;
vax)
[ -f "${objtree}/vmlinux.SYS" ] && cp -v -- "${objtree}/vmlinux.SYS" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}.SYS"
[ -f "${objtree}/vmlinux.dsk" ] && cp -v -- "${objtree}/vmlinux.dsk" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}.dsk"
projects / linux-2.6-omap-h63xx.git / commitdiff