#include <asm/kdebug.h>
#include <asm/numa.h>
-#ifndef Dprintk
-# define Dprintk(x...)
-#endif
-
const struct dma_mapping_ops *dma_ops;
EXPORT_SYMBOL(dma_ops);
after_bootmem ? "after bootmem" : "");
}
- Dprintk("spp_getpage %p\n", ptr);
+ pr_debug("spp_getpage %p\n", ptr);
return ptr;
}
pmd_t *pmd;
pte_t *pte, new_pte;
- Dprintk("set_pte_phys %lx to %lx\n", vaddr, phys);
+ pr_debug("set_pte_phys %lx to %lx\n", vaddr, phys);
pgd = pgd_offset_k(vaddr);
if (pgd_none(*pgd)) {
- printk("PGD FIXMAP MISSING, it should be setup in head.S!\n");
+ printk(KERN_ERR
+ "PGD FIXMAP MISSING, it should be setup in head.S!\n");
return;
}
pud = pud_offset(pgd, vaddr);
pmd = (pmd_t *) spp_getpage();
set_pud(pud, __pud(__pa(pmd) | _KERNPG_TABLE | _PAGE_USER));
if (pmd != pmd_offset(pud, 0)) {
- printk("PAGETABLE BUG #01! %p <-> %p\n",
+ printk(KERN_ERR "PAGETABLE BUG #01! %p <-> %p\n",
pmd, pmd_offset(pud, 0));
return;
}
pte = (pte_t *) spp_getpage();
set_pmd(pmd, __pmd(__pa(pte) | _KERNPG_TABLE | _PAGE_USER));
if (pte != pte_offset_kernel(pmd, 0)) {
- printk("PAGETABLE BUG #02!\n");
+ printk(KERN_ERR "PAGETABLE BUG #02!\n");
return;
}
}
unsigned long address = __fix_to_virt(idx);
if (idx >= __end_of_fixed_addresses) {
- printk("Invalid __set_fixmap\n");
+ printk(KERN_ERR "Invalid __set_fixmap\n");
return;
}
set_pte_phys(address, phys, prot);
continue_outer_loop:
;
}
- printk("early_ioremap(0x%lx, %lu) failed\n", addr, size);
+ printk(KERN_ERR "early_ioremap(0x%lx, %lu) failed\n", addr, size);
return NULL;
}
int i = pmd_index(address);
for (; i < PTRS_PER_PMD; i++, address += PMD_SIZE) {
- unsigned long entry;
pmd_t *pmd = pmd_page + pmd_index(address);
if (address >= end) {
if (pmd_val(*pmd))
continue;
- entry = __PAGE_KERNEL_LARGE|_PAGE_GLOBAL|address;
- entry &= __supported_pte_mask;
- set_pmd(pmd, __pmd(entry));
+ set_pte((pte_t *)pmd,
+ pfn_pte(address >> PAGE_SHIFT, PAGE_KERNEL_LARGE));
}
}
* need roughly 0.5KB per GB.
*/
start = 0x8000;
- table_start = find_e820_area(start, end, tables);
+ table_start = find_e820_area(start, end, tables, PAGE_SIZE);
if (table_start == -1UL)
panic("Cannot find space for the kernel page tables");
{
unsigned long next;
- Dprintk("init_memory_mapping\n");
+ pr_debug("init_memory_mapping\n");
/*
* Find space for the kernel direct mapping tables.
mmu_cr4_features = read_cr4();
__flush_tlb_all();
- reserve_early(table_start << PAGE_SHIFT, table_end << PAGE_SHIFT);
+ if (!after_bootmem)
+ reserve_early(table_start << PAGE_SHIFT,
+ table_end << PAGE_SHIFT, "PGTABLE");
}
#ifndef CONFIG_NUMA
}
#endif
-/*
- * Unmap a kernel mapping if it exists. This is useful to avoid
- * prefetches from the CPU leading to inconsistent cache lines.
- * address and size must be aligned to 2MB boundaries.
- * Does nothing when the mapping doesn't exist.
- */
-void __init clear_kernel_mapping(unsigned long address, unsigned long size)
-{
- unsigned long end = address + size;
-
- BUG_ON(address & ~LARGE_PAGE_MASK);
- BUG_ON(size & ~LARGE_PAGE_MASK);
-
- for (; address < end; address += LARGE_PAGE_SIZE) {
- pgd_t *pgd = pgd_offset_k(address);
- pud_t *pud;
- pmd_t *pmd;
-
- if (pgd_none(*pgd))
- continue;
-
- pud = pud_offset(pgd, address);
- if (pud_none(*pud))
- continue;
-
- pmd = pmd_offset(pud, address);
- if (!pmd || pmd_none(*pmd))
- continue;
-
- if (!(pmd_val(*pmd) & _PAGE_PSE)) {
- /*
- * Could handle this, but it should not happen
- * currently:
- */
- printk(KERN_ERR "clear_kernel_mapping: "
- "mapping has been split. will leak memory\n");
- pmd_ERROR(*pmd);
- }
- set_pmd(pmd, __pmd(0));
- }
- __flush_tlb_all();
-}
-
/*
* Memory hotplug specific functions
*/
init_memory_mapping(start, start + size-1);
ret = __add_pages(zone, start_pfn, nr_pages);
- if (ret)
- printk("%s: Problem encountered in __add_pages!\n", __func__);
+ WARN_ON(1);
return ret;
}
kclist_add(&kcore_vsyscall, (void *)VSYSCALL_START,
VSYSCALL_END - VSYSCALL_START);
- printk("Memory: %luk/%luk available (%ldk kernel code, "
+ printk(KERN_INFO "Memory: %luk/%luk available (%ldk kernel code, "
"%ldk reserved, %ldk data, %ldk init)\n",
(unsigned long) nr_free_pages() << (PAGE_SHIFT-10),
end_pfn << (PAGE_SHIFT-10),
if (end <= start)
return;
- set_memory_ro(start, (end - start) >> PAGE_SHIFT);
printk(KERN_INFO "Write protecting the kernel read-only data: %luk\n",
(end - start) >> 10);
+ set_memory_ro(start, (end - start) >> PAGE_SHIFT);
+
+ /*
+ * The rodata section (but not the kernel text!) should also be
+ * not-executable.
+ */
+ start = ((unsigned long)__start_rodata + PAGE_SIZE - 1) & PAGE_MASK;
+ set_memory_nx(start, (end - start) >> PAGE_SHIFT);
rodata_test();
#ifdef CONFIG_CPA_DEBUG
- printk("Testing CPA: undo %lx-%lx\n", start, end);
+ printk(KERN_INFO "Testing CPA: undo %lx-%lx\n", start, end);
set_memory_rw(start, (end-start) >> PAGE_SHIFT);
- printk("Testing CPA: again\n");
+ printk(KERN_INFO "Testing CPA: again\n");
set_memory_ro(start, (end-start) >> PAGE_SHIFT);
#endif
}
projects / linux-2.6-omap-h63xx.git / blobdiff