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authorMatthew Wilcox (Oracle) <willy@infradead.org>2023-08-02 18:13:40 +0300
committerAndrew Morton <akpm@linux-foundation.org>2023-08-25 02:20:20 +0300
commit9ff633944165d11c53c088d9596db3da66e90396 (patch)
treea7583522f8ad62658eb3fff9f3183a9984021e57 /arch
parente724e7aaf9ca794670a4d4931af7a7e24e37fec3 (diff)
downloadlinux-9ff633944165d11c53c088d9596db3da66e90396.tar.xz
hexagon: implement the new page table range API
Add PFN_PTE_SHIFT and update_mmu_cache_range(). Link: https://lkml.kernel.org/r/20230802151406.3735276-13-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Acked-by: Brian Cain <bcain@quicinc.com> Acked-by: Mike Rapoport (IBM) <rppt@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/hexagon/include/asm/cacheflush.h8
-rw-r--r--arch/hexagon/include/asm/pgtable.h9
2 files changed, 7 insertions, 10 deletions
diff --git a/arch/hexagon/include/asm/cacheflush.h b/arch/hexagon/include/asm/cacheflush.h
index 6eff0730e6ef..dc3f500a5a01 100644
--- a/arch/hexagon/include/asm/cacheflush.h
+++ b/arch/hexagon/include/asm/cacheflush.h
@@ -58,12 +58,16 @@ extern void flush_cache_all_hexagon(void);
* clean the cache when the PTE is set.
*
*/
-static inline void update_mmu_cache(struct vm_area_struct *vma,
- unsigned long address, pte_t *ptep)
+static inline void update_mmu_cache_range(struct vm_fault *vmf,
+ struct vm_area_struct *vma, unsigned long address,
+ pte_t *ptep, unsigned int nr)
{
/* generic_ptrace_pokedata doesn't wind up here, does it? */
}
+#define update_mmu_cache(vma, addr, ptep) \
+ update_mmu_cache_range(NULL, vma, addr, ptep, 1)
+
void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
unsigned long vaddr, void *dst, void *src, int len);
#define copy_to_user_page copy_to_user_page
diff --git a/arch/hexagon/include/asm/pgtable.h b/arch/hexagon/include/asm/pgtable.h
index 59393613d086..dd05dd71b8ec 100644
--- a/arch/hexagon/include/asm/pgtable.h
+++ b/arch/hexagon/include/asm/pgtable.h
@@ -338,6 +338,7 @@ static inline int pte_exec(pte_t pte)
/* __swp_entry_to_pte - extract PTE from swap entry */
#define __swp_entry_to_pte(x) ((pte_t) { (x).val })
+#define PFN_PTE_SHIFT PAGE_SHIFT
/* pfn_pte - convert page number and protection value to page table entry */
#define pfn_pte(pfn, pgprot) __pte((pfn << PAGE_SHIFT) | pgprot_val(pgprot))
@@ -345,14 +346,6 @@ static inline int pte_exec(pte_t pte)
#define pte_pfn(pte) (pte_val(pte) >> PAGE_SHIFT)
#define set_pmd(pmdptr, pmdval) (*(pmdptr) = (pmdval))
-/*
- * set_pte_at - update page table and do whatever magic may be
- * necessary to make the underlying hardware/firmware take note.
- *
- * VM may require a virtual instruction to alert the MMU.
- */
-#define set_pte_at(mm, addr, ptep, pte) set_pte(ptep, pte)
-
static inline unsigned long pmd_page_vaddr(pmd_t pmd)
{
return (unsigned long)__va(pmd_val(pmd) & PAGE_MASK);