diff options
| author | Jeff Dike <jdike@addtoit.com> | 2008-02-04 22:30:55 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-02-05 09:44:28 -0800 |
| commit | 655e4ed0c521dcfdbf1c5a79da971560e6733527 (patch) | |
| tree | 8b0cf794410c9e632b9ee65b8e0750621d9c96ce /include/asm-um/page.h | |
| parent | a5a678c80beac4d163babda243a27eeb9c89bd89 (diff) | |
| download | linux-655e4ed0c521dcfdbf1c5a79da971560e6733527.tar.bz2 | |
uml: fix page table data sizes
Get the sizes of various pieces of data right when using three-level
page tables. pgd and pmd entries remain at 32 bits in a 32-bit
compilation because page tables will remain in low memory. So,
PGDIR_SHIFT, the PTRS_PER_* values, set_pud, set_pmd are conditional
on 64BIT.
More use of phys_t is made when there are physical memory addresses
floating around.
ObCheckpatchViolationJustification - the new typedef is an alternate
definition of pmd_t, which I can't really live without.
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-um/page.h')
| -rw-r--r-- | include/asm-um/page.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/asm-um/page.h b/include/asm-um/page.h index 4b424c75fca5..fe2374d705d1 100644 --- a/include/asm-um/page.h +++ b/include/asm-um/page.h @@ -30,7 +30,7 @@ struct page; #if defined(CONFIG_3_LEVEL_PGTABLES) && !defined(CONFIG_64BIT) typedef struct { unsigned long pte_low, pte_high; } pte_t; -typedef struct { unsigned long long pmd; } pmd_t; +typedef struct { unsigned long pmd; } pmd_t; typedef struct { unsigned long pgd; } pgd_t; #define pte_val(x) ((x).pte_low | ((unsigned long long) (x).pte_high << 32)) @@ -106,8 +106,8 @@ extern unsigned long uml_physmem; #define __pa(virt) to_phys((void *) (unsigned long) (virt)) #define __va(phys) to_virt((unsigned long) (phys)) -#define phys_to_pfn(p) ((p) >> PAGE_SHIFT) -#define pfn_to_phys(pfn) ((pfn) << PAGE_SHIFT) +#define phys_to_pfn(p) ((pfn_t) ((p) >> PAGE_SHIFT)) +#define pfn_to_phys(pfn) ((phys_t) ((pfn) << PAGE_SHIFT)) #define pfn_valid(pfn) ((pfn) < max_mapnr) #define virt_addr_valid(v) pfn_valid(phys_to_pfn(__pa(v))) |