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Diffstat (limited to 'arch/riscv/include/asm/pgtable.h')
-rw-r--r--arch/riscv/include/asm/pgtable.h40
1 files changed, 24 insertions, 16 deletions
diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h
index 39c6bb8254..6afd6bb488 100644
--- a/arch/riscv/include/asm/pgtable.h
+++ b/arch/riscv/include/asm/pgtable.h
@@ -127,17 +127,11 @@
#define VA_USER_SV48 (UL(1) << (VA_BITS_SV48 - 1))
#define VA_USER_SV57 (UL(1) << (VA_BITS_SV57 - 1))
-#ifdef CONFIG_COMPAT
#define MMAP_VA_BITS_64 ((VA_BITS >= VA_BITS_SV48) ? VA_BITS_SV48 : VA_BITS)
#define MMAP_MIN_VA_BITS_64 (VA_BITS_SV39)
#define MMAP_VA_BITS (is_compat_task() ? VA_BITS_SV32 : MMAP_VA_BITS_64)
#define MMAP_MIN_VA_BITS (is_compat_task() ? VA_BITS_SV32 : MMAP_MIN_VA_BITS_64)
#else
-#define MMAP_VA_BITS ((VA_BITS >= VA_BITS_SV48) ? VA_BITS_SV48 : VA_BITS)
-#define MMAP_MIN_VA_BITS (VA_BITS_SV39)
-#endif /* CONFIG_COMPAT */
-
-#else
#include <asm/pgtable-32.h>
#endif /* CONFIG_64BIT */
@@ -241,7 +235,7 @@ static inline int pmd_bad(pmd_t pmd)
}
#define pmd_leaf pmd_leaf
-static inline int pmd_leaf(pmd_t pmd)
+static inline bool pmd_leaf(pmd_t pmd)
{
return pmd_present(pmd) && (pmd_val(pmd) & _PAGE_LEAF);
}
@@ -519,23 +513,25 @@ static inline void set_pte(pte_t *ptep, pte_t pteval)
WRITE_ONCE(*ptep, pteval);
}
-void flush_icache_pte(pte_t pte);
+void flush_icache_pte(struct mm_struct *mm, pte_t pte);
-static inline void __set_pte_at(pte_t *ptep, pte_t pteval)
+static inline void __set_pte_at(struct mm_struct *mm, pte_t *ptep, pte_t pteval)
{
if (pte_present(pteval) && pte_exec(pteval))
- flush_icache_pte(pteval);
+ flush_icache_pte(mm, pteval);
set_pte(ptep, pteval);
}
+#define PFN_PTE_SHIFT _PAGE_PFN_SHIFT
+
static inline void set_ptes(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, pte_t pteval, unsigned int nr)
{
page_table_check_ptes_set(mm, ptep, pteval, nr);
for (;;) {
- __set_pte_at(ptep, pteval);
+ __set_pte_at(mm, ptep, pteval);
if (--nr == 0)
break;
ptep++;
@@ -547,7 +543,7 @@ static inline void set_ptes(struct mm_struct *mm, unsigned long addr,
static inline void pte_clear(struct mm_struct *mm,
unsigned long addr, pte_t *ptep)
{
- __set_pte_at(ptep, __pte(0));
+ __set_pte_at(mm, ptep, __pte(0));
}
#define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS /* defined in mm/pgtable.c */
@@ -597,6 +593,12 @@ static inline int ptep_clear_flush_young(struct vm_area_struct *vma,
return ptep_test_and_clear_young(vma, address, ptep);
}
+#define pgprot_nx pgprot_nx
+static inline pgprot_t pgprot_nx(pgprot_t _prot)
+{
+ return __pgprot(pgprot_val(_prot) & ~_PAGE_EXEC);
+}
+
#define pgprot_noncached pgprot_noncached
static inline pgprot_t pgprot_noncached(pgprot_t _prot)
{
@@ -662,6 +664,12 @@ static inline int pmd_write(pmd_t pmd)
return pte_write(pmd_pte(pmd));
}
+#define pud_write pud_write
+static inline int pud_write(pud_t pud)
+{
+ return pte_write(pud_pte(pud));
+}
+
#define pmd_dirty pmd_dirty
static inline int pmd_dirty(pmd_t pmd)
{
@@ -713,14 +721,14 @@ static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr,
pmd_t *pmdp, pmd_t pmd)
{
page_table_check_pmd_set(mm, pmdp, pmd);
- return __set_pte_at((pte_t *)pmdp, pmd_pte(pmd));
+ return __set_pte_at(mm, (pte_t *)pmdp, pmd_pte(pmd));
}
static inline void set_pud_at(struct mm_struct *mm, unsigned long addr,
pud_t *pudp, pud_t pud)
{
page_table_check_pud_set(mm, pudp, pud);
- return __set_pte_at((pte_t *)pudp, pud_pte(pud));
+ return __set_pte_at(mm, (pte_t *)pudp, pud_pte(pud));
}
#ifdef CONFIG_PAGE_TABLE_CHECK
@@ -871,8 +879,8 @@ static inline pte_t pte_swp_clear_exclusive(pte_t pte)
#define TASK_SIZE_MIN (PGDIR_SIZE_L3 * PTRS_PER_PGD / 2)
#ifdef CONFIG_COMPAT
-#define TASK_SIZE_32 (_AC(0x80000000, UL))
-#define TASK_SIZE (test_thread_flag(TIF_32BIT) ? \
+#define TASK_SIZE_32 (_AC(0x80000000, UL) - PAGE_SIZE)
+#define TASK_SIZE (is_compat_task() ? \
TASK_SIZE_32 : TASK_SIZE_64)
#else
#define TASK_SIZE TASK_SIZE_64