diff options
Diffstat (limited to 'arch/xtensa')
| -rw-r--r-- | arch/xtensa/include/asm/fixmap.h | 8 | ||||
| -rw-r--r-- | arch/xtensa/include/asm/pgtable.h | 1 | ||||
| -rw-r--r-- | arch/xtensa/mm/fault.c | 10 | ||||
| -rw-r--r-- | arch/xtensa/mm/kasan_init.c | 6 | ||||
| -rw-r--r-- | arch/xtensa/mm/mmu.c | 3 | ||||
| -rw-r--r-- | arch/xtensa/mm/tlb.c | 6 |
6 files changed, 24 insertions, 10 deletions
diff --git a/arch/xtensa/include/asm/fixmap.h b/arch/xtensa/include/asm/fixmap.h index 7e25c1b50ac0..cfb8696917e9 100644 --- a/arch/xtensa/include/asm/fixmap.h +++ b/arch/xtensa/include/asm/fixmap.h @@ -78,8 +78,10 @@ static inline unsigned long virt_to_fix(const unsigned long vaddr) #define kmap_get_fixmap_pte(vaddr) \ pte_offset_kernel( \ - pmd_offset(pud_offset(pgd_offset_k(vaddr), (vaddr)), (vaddr)), \ - (vaddr) \ - ) + pmd_offset(pud_offset(p4d_offset(pgd_offset_k(vaddr), \ + (vaddr)), \ + (vaddr)), \ + (vaddr)), \ + (vaddr)) #endif diff --git a/arch/xtensa/include/asm/pgtable.h b/arch/xtensa/include/asm/pgtable.h index af72f02004f1..27ac17c9da09 100644 --- a/arch/xtensa/include/asm/pgtable.h +++ b/arch/xtensa/include/asm/pgtable.h @@ -8,7 +8,6 @@ #ifndef _XTENSA_PGTABLE_H #define _XTENSA_PGTABLE_H -#define __ARCH_USE_5LEVEL_HACK #include <asm/page.h> #include <asm/kmem_layout.h> #include <asm-generic/pgtable-nopmd.h> diff --git a/arch/xtensa/mm/fault.c b/arch/xtensa/mm/fault.c index 68a041402025..bee30a77cd70 100644 --- a/arch/xtensa/mm/fault.c +++ b/arch/xtensa/mm/fault.c @@ -197,6 +197,7 @@ vmalloc_fault: struct mm_struct *act_mm = current->active_mm; int index = pgd_index(address); pgd_t *pgd, *pgd_k; + p4d_t *p4d, *p4d_k; pud_t *pud, *pud_k; pmd_t *pmd, *pmd_k; pte_t *pte_k; @@ -212,8 +213,13 @@ vmalloc_fault: pgd_val(*pgd) = pgd_val(*pgd_k); - pud = pud_offset(pgd, address); - pud_k = pud_offset(pgd_k, address); + p4d = p4d_offset(pgd, address); + p4d_k = p4d_offset(pgd_k, address); + if (!p4d_present(*p4d) || !p4d_present(*p4d_k)) + goto bad_page_fault; + + pud = pud_offset(p4d, address); + pud_k = pud_offset(p4d_k, address); if (!pud_present(*pud) || !pud_present(*pud_k)) goto bad_page_fault; diff --git a/arch/xtensa/mm/kasan_init.c b/arch/xtensa/mm/kasan_init.c index ace98bdf5191..9c957791bb33 100644 --- a/arch/xtensa/mm/kasan_init.c +++ b/arch/xtensa/mm/kasan_init.c @@ -20,7 +20,8 @@ void __init kasan_early_init(void) { unsigned long vaddr = KASAN_SHADOW_START; pgd_t *pgd = pgd_offset_k(vaddr); - pud_t *pud = pud_offset(pgd, vaddr); + p4d_t *p4d = p4d_offset(pgd, vaddr); + pud_t *pud = pud_offset(p4d, vaddr); pmd_t *pmd = pmd_offset(pud, vaddr); int i; @@ -43,7 +44,8 @@ static void __init populate(void *start, void *end) unsigned long i, j; unsigned long vaddr = (unsigned long)start; pgd_t *pgd = pgd_offset_k(vaddr); - pud_t *pud = pud_offset(pgd, vaddr); + p4d_t *p4d = p4d_offset(pgd, vaddr); + pud_t *pud = pud_offset(p4d, vaddr); pmd_t *pmd = pmd_offset(pud, vaddr); pte_t *pte = memblock_alloc(n_pages * sizeof(pte_t), PAGE_SIZE); diff --git a/arch/xtensa/mm/mmu.c b/arch/xtensa/mm/mmu.c index 018dda2c6a91..37e478a27877 100644 --- a/arch/xtensa/mm/mmu.c +++ b/arch/xtensa/mm/mmu.c @@ -22,7 +22,8 @@ static void * __init init_pmd(unsigned long vaddr, unsigned long n_pages) { pgd_t *pgd = pgd_offset_k(vaddr); - pud_t *pud = pud_offset(pgd, vaddr); + p4d_t *p4d = p4d_offset(pgd, vaddr); + pud_t *pud = pud_offset(p4d, vaddr); pmd_t *pmd = pmd_offset(pud, vaddr); pte_t *pte; unsigned long i; diff --git a/arch/xtensa/mm/tlb.c b/arch/xtensa/mm/tlb.c index 164a2ca07a1f..ec8220973252 100644 --- a/arch/xtensa/mm/tlb.c +++ b/arch/xtensa/mm/tlb.c @@ -169,6 +169,7 @@ static unsigned get_pte_for_vaddr(unsigned vaddr) struct task_struct *task = get_current(); struct mm_struct *mm = task->mm; pgd_t *pgd; + p4d_t *p4d; pud_t *pud; pmd_t *pmd; pte_t *pte; @@ -178,7 +179,10 @@ static unsigned get_pte_for_vaddr(unsigned vaddr) pgd = pgd_offset(mm, vaddr); if (pgd_none_or_clear_bad(pgd)) return 0; - pud = pud_offset(pgd, vaddr); + p4d = p4d_offset(pgd, vaddr); + if (p4d_none_or_clear_bad(p4d)) + return 0; + pud = pud_offset(p4d, vaddr); if (pud_none_or_clear_bad(pud)) return 0; pmd = pmd_offset(pud, vaddr); |