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Blackfin arch: SMP supporting patchset: Blackfin header files and machine common code

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Blackfin dual core BF561 processor can support SMP like features.
https://docs.blackfin.uclinux.org/doku.php?id=linux-kernel:smp-like

In this patch, we provide SMP extend to Blackfin header files
and machine common code

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
This commit is contained in:
Graf Yang
2009-01-07 23:14:39 +08:00
committed by Bryan Wu
parent c51b4488cd
commit 6b3087c64a
25 changed files with 1454 additions and 211 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
arch/blackfin/include/asm/cacheflush.h
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@ -35,6 +35,7 @@ extern void blackfin_icache_flush_range(unsigned long start_address, unsigned lo
extern void blackfin_dcache_flush_range(unsigned long start_address, unsigned long end_address);
extern void blackfin_dcache_invalidate_range(unsigned long start_address, unsigned long end_address);
extern void blackfin_dflush_page(void *page);
extern void blackfin_invalidate_entire_dcache(void);
#define flush_dcache_mmap_lock(mapping) do { } while (0)
#define flush_dcache_mmap_unlock(mapping) do { } while (0)
@ -44,12 +45,20 @@ extern void blackfin_dflush_page(void *page);
#define flush_cache_vmap(start, end) do { } while (0)
#define flush_cache_vunmap(start, end) do { } while (0)
#ifdef CONFIG_SMP
#define flush_icache_range_others(start, end) \
smp_icache_flush_range_others((start), (end))
#else
#define flush_icache_range_others(start, end) do { } while (0)
#endif
static inline void flush_icache_range(unsigned start, unsigned end)
{
#if defined(CONFIG_BFIN_DCACHE) && defined(CONFIG_BFIN_ICACHE)
# if defined(CONFIG_BFIN_WT)
blackfin_icache_flush_range((start), (end));
flush_icache_range_others(start, end);
# else
blackfin_icache_dcache_flush_range((start), (end));
# endif
@ -58,6 +67,7 @@ static inline void flush_icache_range(unsigned start, unsigned end)
# if defined(CONFIG_BFIN_ICACHE)
blackfin_icache_flush_range((start), (end));
flush_icache_range_others(start, end);
# endif
# if defined(CONFIG_BFIN_DCACHE)
blackfin_dcache_flush_range((start), (end));
@ -66,10 +76,12 @@ static inline void flush_icache_range(unsigned start, unsigned end)
#endif
}
#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
do { memcpy(dst, src, len); \
flush_icache_range ((unsigned) (dst), (unsigned) (dst) + (len)); \
#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
do { memcpy(dst, src, len); \
flush_icache_range((unsigned) (dst), (unsigned) (dst) + (len)); \
flush_icache_range_others((unsigned long) (dst), (unsigned long) (dst) + (len));\
} while (0)
#define copy_from_user_page(vma, page, vaddr, dst, src, len) memcpy(dst, src, len)
#if defined(CONFIG_BFIN_DCACHE)
@ -82,7 +94,7 @@ do { memcpy(dst, src, len); \
# define flush_dcache_page(page) blackfin_dflush_page(page_address(page))
#else
# define flush_dcache_range(start,end) do { } while (0)
# define flush_dcache_page(page) do { } while (0)
# define flush_dcache_page(page) do { } while (0)
#endif
extern unsigned long reserved_mem_dcache_on;