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riscv: Define TASK_SIZE_MAX for __access_ok() #728

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riscv: Define TASK_SIZE_MAX for __access_ok() #728

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1 change: 1 addition & 0 deletions arch/riscv/include/asm/pgtable-64.h
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,7 @@ extern bool pgtable_l5_enabled;
#define PGDIR_SHIFT_L4 39
#define PGDIR_SHIFT_L5 48
#define PGDIR_SIZE_L3 (_AC(1, UL) << PGDIR_SHIFT_L3)
#define PGDIR_SIZE_L5 (_AC(1, UL) << PGDIR_SHIFT_L5)

#define PGDIR_SHIFT (pgtable_l5_enabled ? PGDIR_SHIFT_L5 : \
(pgtable_l4_enabled ? PGDIR_SHIFT_L4 : PGDIR_SHIFT_L3))
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1 change: 1 addition & 0 deletions arch/riscv/include/asm/pgtable.h
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Expand Up @@ -871,6 +871,7 @@ static inline pte_t pte_swp_clear_exclusive(pte_t pte)
#ifdef CONFIG_64BIT
#define TASK_SIZE_64 (PGDIR_SIZE * PTRS_PER_PGD / 2)
#define TASK_SIZE_MIN (PGDIR_SIZE_L3 * PTRS_PER_PGD / 2)
#define TASK_SIZE_MAX (PGDIR_SIZE_L5 * PTRS_PER_PGD / 2)

#ifdef CONFIG_COMPAT
#define TASK_SIZE_32 (_AC(0x80000000, UL) - PAGE_SIZE)
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