diff options
| author | H. Peter Anvin <hpa@linux.intel.com> | 2012-10-19 07:54:24 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2012-10-19 07:55:09 -0700 |
| commit | 4533d86270d7986e00594495dde9a109d6be27ae (patch) | |
| tree | c2473cac653f7b98e5bd5e6475e63734be4b7644 /arch/mips/include/asm/pgtable-bits.h | |
| parent | 21c5e50e15b1abd797e62f18fd7f90b9cc004cbd (diff) | |
| parent | 5bc66170dc486556a1e36fd384463536573f4b82 (diff) | |
Merge commit '5bc66170dc486556a1e36fd384463536573f4b82' into x86/urgent
From Borislav Petkov <bp@amd64.org>:
Below is a RAS fix which reverts the addition of a sysfs attribute
which we agreed is not needed, post-factum. And this should go in now
because that sysfs attribute is going to end up in 3.7 otherwise and
thus exposed to userspace; removing it then would be a lot harder.
This is done as a merge rather than a simple patch/cherry-pick since
the baseline for this patch was not in the previous x86/urgent.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/mips/include/asm/pgtable-bits.h')
| -rw-r--r-- | arch/mips/include/asm/pgtable-bits.h | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/arch/mips/include/asm/pgtable-bits.h b/arch/mips/include/asm/pgtable-bits.h index e9fe7e97ce4..da4ba49adcf 100644 --- a/arch/mips/include/asm/pgtable-bits.h +++ b/arch/mips/include/asm/pgtable-bits.h @@ -79,9 +79,9 @@ /* implemented in software */ #define _PAGE_PRESENT_SHIFT (0) #define _PAGE_PRESENT (1 << _PAGE_PRESENT_SHIFT) -/* implemented in software, should be unused if kernel_uses_smartmips_rixi. */ -#define _PAGE_READ_SHIFT (kernel_uses_smartmips_rixi ? _PAGE_PRESENT_SHIFT : _PAGE_PRESENT_SHIFT + 1) -#define _PAGE_READ ({if (kernel_uses_smartmips_rixi) BUG(); 1 << _PAGE_READ_SHIFT; }) +/* implemented in software, should be unused if cpu_has_rixi. */ +#define _PAGE_READ_SHIFT (cpu_has_rixi ? _PAGE_PRESENT_SHIFT : _PAGE_PRESENT_SHIFT + 1) +#define _PAGE_READ ({BUG_ON(cpu_has_rixi); 1 << _PAGE_READ_SHIFT; }) /* implemented in software */ #define _PAGE_WRITE_SHIFT (_PAGE_READ_SHIFT + 1) #define _PAGE_WRITE (1 << _PAGE_WRITE_SHIFT) @@ -104,12 +104,12 @@ #endif /* Page cannot be executed */ -#define _PAGE_NO_EXEC_SHIFT (kernel_uses_smartmips_rixi ? _PAGE_HUGE_SHIFT + 1 : _PAGE_HUGE_SHIFT) -#define _PAGE_NO_EXEC ({if (!kernel_uses_smartmips_rixi) BUG(); 1 << _PAGE_NO_EXEC_SHIFT; }) +#define _PAGE_NO_EXEC_SHIFT (cpu_has_rixi ? _PAGE_HUGE_SHIFT + 1 : _PAGE_HUGE_SHIFT) +#define _PAGE_NO_EXEC ({BUG_ON(!cpu_has_rixi); 1 << _PAGE_NO_EXEC_SHIFT; }) /* Page cannot be read */ -#define _PAGE_NO_READ_SHIFT (kernel_uses_smartmips_rixi ? _PAGE_NO_EXEC_SHIFT + 1 : _PAGE_NO_EXEC_SHIFT) -#define _PAGE_NO_READ ({if (!kernel_uses_smartmips_rixi) BUG(); 1 << _PAGE_NO_READ_SHIFT; }) +#define _PAGE_NO_READ_SHIFT (cpu_has_rixi ? _PAGE_NO_EXEC_SHIFT + 1 : _PAGE_NO_EXEC_SHIFT) +#define _PAGE_NO_READ ({BUG_ON(!cpu_has_rixi); 1 << _PAGE_NO_READ_SHIFT; }) #define _PAGE_GLOBAL_SHIFT (_PAGE_NO_READ_SHIFT + 1) #define _PAGE_GLOBAL (1 << _PAGE_GLOBAL_SHIFT) @@ -155,7 +155,7 @@ */ static inline uint64_t pte_to_entrylo(unsigned long pte_val) { - if (kernel_uses_smartmips_rixi) { + if (cpu_has_rixi) { int sa; #ifdef CONFIG_32BIT sa = 31 - _PAGE_NO_READ_SHIFT; @@ -220,7 +220,7 @@ static inline uint64_t pte_to_entrylo(unsigned long pte_val) #endif -#define __READABLE (_PAGE_SILENT_READ | _PAGE_ACCESSED | (kernel_uses_smartmips_rixi ? 0 : _PAGE_READ)) +#define __READABLE (_PAGE_SILENT_READ | _PAGE_ACCESSED | (cpu_has_rixi ? 0 : _PAGE_READ)) #define __WRITEABLE (_PAGE_WRITE | _PAGE_SILENT_WRITE | _PAGE_MODIFIED) #define _PAGE_CHG_MASK (_PFN_MASK | _PAGE_ACCESSED | _PAGE_MODIFIED | _CACHE_MASK) |