diff options
| -rw-r--r-- | arch/mips/include/asm/pgtable-bits.h | 19 | ||||
| -rw-r--r-- | arch/mips/include/asm/pgtable.h | 23 | ||||
| -rw-r--r-- | arch/mips/mm/tlbex.c | 13 |
3 files changed, 15 insertions, 40 deletions
diff --git a/arch/mips/include/asm/pgtable-bits.h b/arch/mips/include/asm/pgtable-bits.h index c81fc1703c8a..5bc663d330d2 100644 --- a/arch/mips/include/asm/pgtable-bits.h +++ b/arch/mips/include/asm/pgtable-bits.h @@ -49,7 +49,6 @@ enum pgtable_bits { /* Used only by software (masked out before writing EntryLo*) */ _PAGE_PRESENT_SHIFT = 24, - _PAGE_READ_SHIFT, _PAGE_WRITE_SHIFT, _PAGE_ACCESSED_SHIFT, _PAGE_MODIFIED_SHIFT, @@ -66,7 +65,7 @@ enum pgtable_bits { enum pgtable_bits { /* Used only by software (writes to EntryLo ignored) */ _PAGE_PRESENT_SHIFT, - _PAGE_READ_SHIFT, + _PAGE_NO_READ_SHIFT, _PAGE_WRITE_SHIFT, _PAGE_ACCESSED_SHIFT, _PAGE_MODIFIED_SHIFT, @@ -85,7 +84,7 @@ enum pgtable_bits { /* Used only by software (masked out before writing EntryLo*) */ _PAGE_PRESENT_SHIFT, #if !defined(CONFIG_CPU_MIPSR2) && !defined(CONFIG_CPU_MIPSR6) - _PAGE_READ_SHIFT, + _PAGE_NO_READ_SHIFT, #endif _PAGE_WRITE_SHIFT, _PAGE_ACCESSED_SHIFT, @@ -98,7 +97,6 @@ enum pgtable_bits { #if defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR6) _PAGE_NO_EXEC_SHIFT, _PAGE_NO_READ_SHIFT, - _PAGE_READ_SHIFT = _PAGE_NO_READ_SHIFT, #endif _PAGE_GLOBAL_SHIFT, _PAGE_VALID_SHIFT, @@ -110,11 +108,6 @@ enum pgtable_bits { /* Used only by software */ #define _PAGE_PRESENT (1 << _PAGE_PRESENT_SHIFT) -#if defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR6) -# define _PAGE_READ (cpu_has_rixi ? 0 : (1 << _PAGE_READ_SHIFT)) -#else -# define _PAGE_READ (1 << _PAGE_READ_SHIFT) -#endif #define _PAGE_WRITE (1 << _PAGE_WRITE_SHIFT) #define _PAGE_ACCESSED (1 << _PAGE_ACCESSED_SHIFT) #define _PAGE_MODIFIED (1 << _PAGE_MODIFIED_SHIFT) @@ -125,11 +118,10 @@ enum pgtable_bits { /* Used by TLB hardware (placed in EntryLo*) */ #if (defined(CONFIG_PHYS_ADDR_T_64BIT) && defined(CONFIG_CPU_MIPS32)) # define _PAGE_NO_EXEC (1 << _PAGE_NO_EXEC_SHIFT) -# define _PAGE_NO_READ (1 << _PAGE_NO_READ_SHIFT) #elif defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR6) # define _PAGE_NO_EXEC (cpu_has_rixi ? (1 << _PAGE_NO_EXEC_SHIFT) : 0) -# define _PAGE_NO_READ (cpu_has_rixi ? (1 << _PAGE_NO_READ_SHIFT) : 0) #endif +#define _PAGE_NO_READ (1 << _PAGE_NO_READ_SHIFT) #define _PAGE_GLOBAL (1 << _PAGE_GLOBAL_SHIFT) #define _PAGE_VALID (1 << _PAGE_VALID_SHIFT) #define _PAGE_DIRTY (1 << _PAGE_DIRTY_SHIFT) @@ -145,9 +137,6 @@ enum pgtable_bits { #ifndef _PAGE_NO_EXEC #define _PAGE_NO_EXEC 0 #endif -#ifndef _PAGE_NO_READ -#define _PAGE_NO_READ 0 -#endif #define _PAGE_SILENT_READ _PAGE_VALID #define _PAGE_SILENT_WRITE _PAGE_DIRTY @@ -245,7 +234,7 @@ static inline uint64_t pte_to_entrylo(unsigned long pte_val) #define _CACHE_UNCACHED_ACCELERATED (7<<_CACHE_SHIFT) #endif -#define __READABLE (_PAGE_SILENT_READ | _PAGE_READ | _PAGE_ACCESSED) +#define __READABLE (_PAGE_SILENT_READ | _PAGE_ACCESSED) #define __WRITEABLE (_PAGE_SILENT_WRITE | _PAGE_WRITE | _PAGE_MODIFIED) #define _PAGE_CHG_MASK (_PAGE_ACCESSED | _PAGE_MODIFIED | \ diff --git a/arch/mips/include/asm/pgtable.h b/arch/mips/include/asm/pgtable.h index 7f422500b65d..f6de4f49b1b2 100644 --- a/arch/mips/include/asm/pgtable.h +++ b/arch/mips/include/asm/pgtable.h @@ -23,18 +23,19 @@ struct mm_struct; struct vm_area_struct; -#define PAGE_NONE __pgprot(_PAGE_PRESENT | _CACHE_CACHABLE_NONCOHERENT) -#define PAGE_SHARED __pgprot(_PAGE_PRESENT | _PAGE_WRITE | _PAGE_READ | \ +#define PAGE_NONE __pgprot(_PAGE_PRESENT | _PAGE_NO_READ | \ + _CACHE_CACHABLE_NONCOHERENT) +#define PAGE_SHARED __pgprot(_PAGE_PRESENT | _PAGE_WRITE | \ _page_cachable_default) -#define PAGE_COPY __pgprot(_PAGE_PRESENT | _PAGE_READ | _PAGE_NO_EXEC | \ +#define PAGE_COPY __pgprot(_PAGE_PRESENT | _PAGE_NO_EXEC | \ _page_cachable_default) -#define PAGE_READONLY __pgprot(_PAGE_PRESENT | _PAGE_READ | \ +#define PAGE_READONLY __pgprot(_PAGE_PRESENT | \ _page_cachable_default) #define PAGE_KERNEL __pgprot(_PAGE_PRESENT | __READABLE | __WRITEABLE | \ _PAGE_GLOBAL | _page_cachable_default) #define PAGE_KERNEL_NC __pgprot(_PAGE_PRESENT | __READABLE | __WRITEABLE | \ _PAGE_GLOBAL | _CACHE_CACHABLE_NONCOHERENT) -#define PAGE_USERIO __pgprot(_PAGE_PRESENT | _PAGE_READ | _PAGE_WRITE | \ +#define PAGE_USERIO __pgprot(_PAGE_PRESENT | _PAGE_WRITE | \ _page_cachable_default) #define PAGE_KERNEL_UNCACHED __pgprot(_PAGE_PRESENT | __READABLE | \ __WRITEABLE | _PAGE_GLOBAL | _CACHE_UNCACHED) @@ -338,7 +339,7 @@ static inline pte_t pte_mkdirty(pte_t pte) static inline pte_t pte_mkyoung(pte_t pte) { pte.pte_low |= _PAGE_ACCESSED; - if (pte.pte_low & _PAGE_READ) + if (!(pte.pte_low & _PAGE_NO_READ)) pte.pte_high |= _PAGE_SILENT_READ; return pte; } @@ -384,13 +385,8 @@ static inline pte_t pte_mkdirty(pte_t pte) static inline pte_t pte_mkyoung(pte_t pte) { pte_val(pte) |= _PAGE_ACCESSED; -#if defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR6) || defined(CONFIG_CPU_LOONGSON3) if (!(pte_val(pte) & _PAGE_NO_READ)) pte_val(pte) |= _PAGE_SILENT_READ; - else -#endif - if (pte_val(pte) & _PAGE_READ) - pte_val(pte) |= _PAGE_SILENT_READ; return pte; } @@ -570,13 +566,8 @@ static inline pmd_t pmd_mkyoung(pmd_t pmd) { pmd_val(pmd) |= _PAGE_ACCESSED; -#if defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR6) || defined(CONFIG_CPU_LOONGSON3) if (!(pmd_val(pmd) & _PAGE_NO_READ)) pmd_val(pmd) |= _PAGE_SILENT_READ; - else -#endif - if (pmd_val(pmd) & _PAGE_READ) - pmd_val(pmd) |= _PAGE_SILENT_READ; return pmd; } diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c index baad605db878..67966f30c522 100644 --- a/arch/mips/mm/tlbex.c +++ b/arch/mips/mm/tlbex.c @@ -234,20 +234,16 @@ static void output_pgtable_bits_defines(void) pr_debug("\n"); pr_define("_PAGE_PRESENT_SHIFT %d\n", _PAGE_PRESENT_SHIFT); - pr_define("_PAGE_READ_SHIFT %d\n", _PAGE_READ_SHIFT); + pr_define("_PAGE_NO_READ_SHIFT %d\n", _PAGE_NO_READ_SHIFT); pr_define("_PAGE_WRITE_SHIFT %d\n", _PAGE_WRITE_SHIFT); pr_define("_PAGE_ACCESSED_SHIFT %d\n", _PAGE_ACCESSED_SHIFT); pr_define("_PAGE_MODIFIED_SHIFT %d\n", _PAGE_MODIFIED_SHIFT); #ifdef CONFIG_MIPS_HUGE_TLB_SUPPORT pr_define("_PAGE_HUGE_SHIFT %d\n", _PAGE_HUGE_SHIFT); #endif -#if defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR6) - if (cpu_has_rixi) { #ifdef _PAGE_NO_EXEC_SHIFT + if (cpu_has_rixi) pr_define("_PAGE_NO_EXEC_SHIFT %d\n", _PAGE_NO_EXEC_SHIFT); - pr_define("_PAGE_NO_READ_SHIFT %d\n", _PAGE_NO_READ_SHIFT); -#endif - } #endif pr_define("_PAGE_GLOBAL_SHIFT %d\n", _PAGE_GLOBAL_SHIFT); pr_define("_PAGE_VALID_SHIFT %d\n", _PAGE_VALID_SHIFT); @@ -1728,9 +1724,8 @@ build_pte_present(u32 **p, struct uasm_reloc **r, cur = t; } uasm_i_andi(p, t, cur, - (_PAGE_PRESENT | _PAGE_READ) >> _PAGE_PRESENT_SHIFT); - uasm_i_xori(p, t, t, - (_PAGE_PRESENT | _PAGE_READ) >> _PAGE_PRESENT_SHIFT); + (_PAGE_PRESENT | _PAGE_NO_READ) >> _PAGE_PRESENT_SHIFT); + uasm_i_xori(p, t, t, _PAGE_PRESENT >> _PAGE_PRESENT_SHIFT); uasm_il_bnez(p, r, t, lid); if (pte == t) /* You lose the SMP race :-(*/ |