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| author | David Woodhouse <David.Woodhouse@intel.com> | 2010-10-30 15:35:11 +0400 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2010-10-30 15:35:11 +0400 |
| commit | 67577927e8d7a1f4b09b4992df640eadc6aacb36 (patch) | |
| tree | 2e9efe6b5745965faf0dcc084d4613d9356263f9 /arch/arm/include/asm/tlbflush.h | |
| parent | 6fe4c590313133ebd5dadb769031489ff178ece1 (diff) | |
| parent | 51f00a471ce8f359627dd99aeac322947a0e491b (diff) | |
| download | linux-67577927e8d7a1f4b09b4992df640eadc6aacb36.tar.xz | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
Conflicts:
drivers/mtd/mtd_blkdevs.c
Merge Grant's device-tree bits so that we can apply the subsequent fixes.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'arch/arm/include/asm/tlbflush.h')
| -rw-r--r-- | arch/arm/include/asm/tlbflush.h | 36 |
1 files changed, 27 insertions, 9 deletions
diff --git a/arch/arm/include/asm/tlbflush.h b/arch/arm/include/asm/tlbflush.h index 33b546ae72d4..ce7378ea15a2 100644 --- a/arch/arm/include/asm/tlbflush.h +++ b/arch/arm/include/asm/tlbflush.h @@ -70,6 +70,10 @@ #undef _TLB #undef MULTI_TLB +#ifdef CONFIG_SMP_ON_UP +#define MULTI_TLB 1 +#endif + #define v3_tlb_flags (TLB_V3_FULL | TLB_V3_PAGE) #ifdef CONFIG_CPU_TLB_V3 @@ -185,17 +189,23 @@ # define v6wbi_always_flags (-1UL) #endif -#ifdef CONFIG_SMP -#define v7wbi_tlb_flags (TLB_WB | TLB_DCLEAN | TLB_V7_IS_BTB | \ +#define v7wbi_tlb_flags_smp (TLB_WB | TLB_DCLEAN | TLB_V7_IS_BTB | \ TLB_V7_UIS_FULL | TLB_V7_UIS_PAGE | TLB_V7_UIS_ASID) -#else -#define v7wbi_tlb_flags (TLB_WB | TLB_DCLEAN | TLB_BTB | \ +#define v7wbi_tlb_flags_up (TLB_WB | TLB_DCLEAN | TLB_BTB | \ TLB_V6_U_FULL | TLB_V6_U_PAGE | TLB_V6_U_ASID) -#endif #ifdef CONFIG_CPU_TLB_V7 -# define v7wbi_possible_flags v7wbi_tlb_flags -# define v7wbi_always_flags v7wbi_tlb_flags + +# ifdef CONFIG_SMP_ON_UP +# define v7wbi_possible_flags (v7wbi_tlb_flags_smp | v7wbi_tlb_flags_up) +# define v7wbi_always_flags (v7wbi_tlb_flags_smp & v7wbi_tlb_flags_up) +# elif defined(CONFIG_SMP) +# define v7wbi_possible_flags v7wbi_tlb_flags_smp +# define v7wbi_always_flags v7wbi_tlb_flags_smp +# else +# define v7wbi_possible_flags v7wbi_tlb_flags_up +# define v7wbi_always_flags v7wbi_tlb_flags_up +# endif # ifdef _TLB # define MULTI_TLB 1 # else @@ -560,12 +570,20 @@ extern void flush_tlb_kernel_range(unsigned long start, unsigned long end); #endif /* - * if PG_dcache_dirty is set for the page, we need to ensure that any + * If PG_dcache_clean is not set for the page, we need to ensure that any * cache entries for the kernels virtual memory range are written - * back to the page. + * back to the page. On ARMv6 and later, the cache coherency is handled via + * the set_pte_at() function. */ +#if __LINUX_ARM_ARCH__ < 6 extern void update_mmu_cache(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep); +#else +static inline void update_mmu_cache(struct vm_area_struct *vma, + unsigned long addr, pte_t *ptep) +{ +} +#endif #endif |