From 9432f96803139adaff0cd9f4fa38b7fb99cda366 Mon Sep 17 00:00:00 2001 From: Stuart Menefy Date: Fri, 23 Feb 2007 13:22:17 +0900 Subject: sh: Clear UBC when not in use. This takes care of tearing down the UBC so it's not inadvertently left configured at the next context switch time. Failure to do this results in spurious SIGTRAPs in certain debug sequences. Signed-off-by: Stuart Menefy Signed-off-by: Paul Mundt --- include/asm-sh/thread_info.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/asm-sh/thread_info.h b/include/asm-sh/thread_info.h index 279e70a77c75..31d55e3782d5 100644 --- a/include/asm-sh/thread_info.h +++ b/include/asm-sh/thread_info.h @@ -111,6 +111,7 @@ static inline struct thread_info *current_thread_info(void) #define TIF_SIGPENDING 2 /* signal pending */ #define TIF_NEED_RESCHED 3 /* rescheduling necessary */ #define TIF_RESTORE_SIGMASK 4 /* restore signal mask in do_signal() */ +#define TIF_SINGLESTEP 5 /* singlestepping active */ #define TIF_USEDFPU 16 /* FPU was used by this task this quantum (SMP) */ #define TIF_POLLING_NRFLAG 17 /* true if poll_idle() is polling TIF_NEED_RESCHED */ #define TIF_MEMDIE 18 @@ -121,6 +122,7 @@ static inline struct thread_info *current_thread_info(void) #define _TIF_SIGPENDING (1< Date: Thu, 1 Mar 2007 15:56:31 +0900 Subject: sh: Use L1_CACHE_BYTES for .data.cacheline_aligned. Previously this was using a hardcoded 32, use L1_CACHE_BYTES for cacheline alignment instead. Signed-off-by: Paul Mundt --- include/asm-sh/cache.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-sh/cache.h b/include/asm-sh/cache.h index e3a180cf5062..9a3cb6ba9d15 100644 --- a/include/asm-sh/cache.h +++ b/include/asm-sh/cache.h @@ -21,6 +21,7 @@ #define L1_CACHE_ALIGN(x) (((x)+(L1_CACHE_BYTES-1))&~(L1_CACHE_BYTES-1)) +#ifndef __ASSEMBLY__ struct cache_info { unsigned int ways; /* Number of cache ways */ unsigned int sets; /* Number of cache sets */ @@ -47,6 +48,6 @@ struct cache_info { unsigned long flags; }; - +#endif /* __ASSEMBLY__ */ #endif /* __KERNEL__ */ #endif /* __ASM_SH_CACHE_H */ -- cgit v1.2.2 From 39e688a94b94eaba768b1494e19e96f828fc2688 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Mon, 5 Mar 2007 19:46:47 +0900 Subject: sh: Revert lazy dcache writeback changes. These ended up causing too many problems on older parts, revert for now.. Signed-off-by: Paul Mundt --- include/asm-sh/cacheflush.h | 3 --- include/asm-sh/cpu-sh3/cacheflush.h | 2 ++ include/asm-sh/cpu-sh4/cacheflush.h | 2 ++ include/asm-sh/pgtable.h | 5 +++++ 4 files changed, 9 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/asm-sh/cacheflush.h b/include/asm-sh/cacheflush.h index 22f12634975b..07f62ec9ff0c 100644 --- a/include/asm-sh/cacheflush.h +++ b/include/asm-sh/cacheflush.h @@ -30,8 +30,5 @@ extern void __flush_invalidate_region(void *start, int size); #define HAVE_ARCH_UNMAPPED_AREA -/* Page flag for lazy dcache write-back for the aliasing UP caches */ -#define PG_dcache_dirty PG_arch_1 - #endif /* __KERNEL__ */ #endif /* __ASM_SH_CACHEFLUSH_H */ diff --git a/include/asm-sh/cpu-sh3/cacheflush.h b/include/asm-sh/cpu-sh3/cacheflush.h index 6fabbba228de..f70d8ef76a15 100644 --- a/include/asm-sh/cpu-sh3/cacheflush.h +++ b/include/asm-sh/cpu-sh3/cacheflush.h @@ -36,6 +36,8 @@ /* 32KB cache, 4kb PAGE sizes need to check bit 12 */ #define CACHE_ALIAS 0x00001000 +#define PG_mapped PG_arch_1 + void flush_cache_all(void); void flush_cache_mm(struct mm_struct *mm); #define flush_cache_dup_mm(mm) flush_cache_mm(mm) diff --git a/include/asm-sh/cpu-sh4/cacheflush.h b/include/asm-sh/cpu-sh4/cacheflush.h index b3746a936a09..5fd5c89ef86a 100644 --- a/include/asm-sh/cpu-sh4/cacheflush.h +++ b/include/asm-sh/cpu-sh4/cacheflush.h @@ -39,4 +39,6 @@ void flush_icache_user_range(struct vm_area_struct *vma, struct page *page, /* Initialization of P3 area for copy_user_page */ void p3_cache_init(void); +#define PG_mapped PG_arch_1 + #endif /* __ASM_CPU_SH4_CACHEFLUSH_H */ diff --git a/include/asm-sh/pgtable.h b/include/asm-sh/pgtable.h index 9214c015fe14..184d7fcaaf10 100644 --- a/include/asm-sh/pgtable.h +++ b/include/asm-sh/pgtable.h @@ -583,6 +583,11 @@ struct mm_struct; extern unsigned int kobjsize(const void *objp); #endif /* !CONFIG_MMU */ +#if defined(CONFIG_CPU_SH4) || defined(CONFIG_SH7705_CACHE_32KB) +#define __HAVE_ARCH_PTEP_GET_AND_CLEAR +extern pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep); +#endif + extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; extern void paging_init(void); -- cgit v1.2.2