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| author | Vineet Gupta <vgupta@synopsys.com> | 2015-03-05 17:06:31 +0530 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2015-10-28 19:31:05 +0530 |
| commit | 336e2136e1353db8e9e731c27381ee0735656a8a (patch) | |
| tree | e386405627b5e1f68f04a1d4f854f3121b913d45 /arch/arc/include/asm | |
| parent | d40846457fc23cd841a60fdc2786e08a8bedb35b (diff) | |
| download | op-kernel-dev-336e2136e1353db8e9e731c27381ee0735656a8a.zip op-kernel-dev-336e2136e1353db8e9e731c27381ee0735656a8a.tar.gz | |
ARC: mm: preps ahead of HIGHMEM support
Before we plug in highmem support, some of code needs to be ready for it
- copy_user_highpage() needs to be using the kmap_atomic API
- mk_pte() can't assume page_address()
- do_page_fault() can't assume VMALLOC_END is end of kernel vaddr space
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc/include/asm')
| -rw-r--r-- | arch/arc/include/asm/pgtable.h | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/arch/arc/include/asm/pgtable.h b/arch/arc/include/asm/pgtable.h index f7c7273..bd771351 100644 --- a/arch/arc/include/asm/pgtable.h +++ b/arch/arc/include/asm/pgtable.h @@ -270,13 +270,7 @@ static inline void pmd_set(pmd_t *pmdp, pte_t *ptep) (unsigned long)(((pte_val(x) - CONFIG_LINUX_LINK_BASE) >> \ PAGE_SHIFT))) -#define mk_pte(page, pgprot) \ -({ \ - pte_t pte; \ - pte_val(pte) = __pa(page_address(page)) + pgprot_val(pgprot); \ - pte; \ -}) - +#define mk_pte(page, prot) pfn_pte(page_to_pfn(page), prot) #define pte_pfn(pte) (pte_val(pte) >> PAGE_SHIFT) #define pfn_pte(pfn, prot) (__pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot))) #define __pte_index(addr) (((addr) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) @@ -360,7 +354,6 @@ static inline void set_pte_at(struct mm_struct *mm, unsigned long addr, #define pgd_offset_fast(mm, addr) pgd_offset(mm, addr) #endif -extern void paging_init(void); extern pgd_t swapper_pg_dir[] __aligned(PAGE_SIZE); void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t *ptep); |
