xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

sparc32: Un-btfixup pmd_page and pte_pfn.

Browse Source 
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2012-05-12 12:33:08 -07:00
parent a46d6056f6
commit 3d8273675d
2 changed files with 25 additions and 35 deletions
Download Patch File Download Diff File Expand all files Collapse all files

31
arch/sparc/include/asm/pgtable_32.h
View File

@@ -134,12 +134,20 @@ static inline void srmmu_set_pte(pte_t *ptep, pte_t pteval)
srmmu_swap((unsigned long *)ptep, pte_val(pteval));
}
/*
*/
BTFIXUPDEF_CALL_CONST(struct page *, pmd_page, pmd_t)
static inline int srmmu_device_memory(unsigned long x)
{
return ((x & 0xF0000000) != 0);
}
static inline struct page *pmd_page(pmd_t pmd)
{
if (srmmu_device_memory(pmd_val(pmd)))
BUG();
return pfn_to_page((pmd_val(pmd) & SRMMU_PTD_PMASK) >> (PAGE_SHIFT-4));
}
BTFIXUPDEF_CALL_CONST(unsigned long, pgd_page_vaddr, pgd_t)
#define pmd_page(pmd) BTFIXUP_CALL(pmd_page)(pmd)
#define pgd_page_vaddr(pgd) BTFIXUP_CALL(pgd_page_vaddr)(pgd)
BTFIXUPDEF_CALL_CONST(int, pte_present, pte_t)
@@ -270,8 +278,19 @@ BTFIXUPDEF_CALL_CONST(pte_t, pte_mkyoung, pte_t)
#define pfn_pte(pfn, prot) mk_pte(pfn_to_page(pfn), prot)
BTFIXUPDEF_CALL(unsigned long, pte_pfn, pte_t)
#define pte_pfn(pte) BTFIXUP_CALL(pte_pfn)(pte)
static inline unsigned long pte_pfn(pte_t pte)
{
if (srmmu_device_memory(pte_val(pte))) {
/* Just return something that will cause
* pfn_valid() to return false. This makes
* copy_one_pte() to just directly copy to
* PTE over.
*/
return ~0UL;
}
return (pte_val(pte) & SRMMU_PTE_PMASK) >> (PAGE_SHIFT-4);
}
#define pte_page(pte) pfn_to_page(pte_pfn(pte))
/*