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powerpc/cache: add cache flush operation for various e500

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Various e500 core have different cache architecture, so they
need different cache flush operations. Therefore, add a callback
function cpu_flush_caches to the struct cpu_spec. The cache flush
operation for the specific kind of e500 is selected at init time.
The callback function will flush all caches inside the current cpu.

Signed-off-by: Chenhui Zhao <chenhui.zhao@freescale.com>
Signed-off-by: Tang Yuantian <Yuantian.Tang@feescale.com>
Signed-off-by: Scott Wood <oss@buserror.net>
This commit is contained in:
chenhui zhao
2015-11-20 17:13:58 +08:00
committed by Scott Wood
parent ebb9d30a6a
commit e7affb1dba
7 changed files with 128 additions and 78 deletions
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arch/powerpc/include/asm/cacheflush.h
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@@ -30,8 +30,6 @@ extern void flush_dcache_page(struct page *page);
#define flush_dcache_mmap_lock(mapping) do { } while (0)
#define flush_dcache_mmap_unlock(mapping) do { } while (0)
extern void __flush_disable_L1(void);
extern void flush_icache_range(unsigned long, unsigned long);
extern void flush_icache_user_range(struct vm_area_struct *vma,
struct page *page, unsigned long addr,