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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-16 19:45:08 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-16 19:45:08 (GMT) |
| commit | 1b821bfb034c5db5af62b463e3001243905179ba (patch) | |
| tree | a5c1090f41716a6912742c9bc960dc2d3ae82899 /arch/blackfin/include/asm/cacheflush.h | |
| parent | a45fbc33137b11e479ea8b7d478a1d7e6488971b (diff) | |
| parent | 1390da4ee75168b6e4d8354e93e3b5f0a0291f2f (diff) | |
| download | linux-1b821bfb034c5db5af62b463e3001243905179ba.tar.xz | |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6:
Blackfin arch: make sure cycles is marked as volatile so gcc doesnt reorder on us
Blackfin arch: disable CONFIG_HW_RANDOM and CONFIG_DAB in defconfig files
Blackfin arch: update cache flush prototypes with argument names to make them less mysterious
Blackfin arch: move bfin_addr_dcachable() and friends into the cacheflush header where it belongs
Blackfin arch: use the new bfin_addr_dcachable() function
Blackfin arch: fix bug - build kernel failed at head.S when reprogram clock on all platforms
Blackfin arch: unify/cleanup cache code
Blackfin arch: update AD7879 platform resources in board file
Blackfin arch: Zero out bss region in L1/L2 memory.
Blackfin arch: add read/write IO accessor functions to Blackfin
Blackfin arch: fix bug - some serial header files set RTS to an input when they should all be outputs
Diffstat (limited to 'arch/blackfin/include/asm/cacheflush.h')
| -rw-r--r-- | arch/blackfin/include/asm/cacheflush.h | 27 |
1 files changed, 22 insertions, 5 deletions
diff --git a/arch/blackfin/include/asm/cacheflush.h b/arch/blackfin/include/asm/cacheflush.h index 5ef9e35..4403415 100644 --- a/arch/blackfin/include/asm/cacheflush.h +++ b/arch/blackfin/include/asm/cacheflush.h @@ -30,11 +30,11 @@ #ifndef _BLACKFIN_CACHEFLUSH_H #define _BLACKFIN_CACHEFLUSH_H -extern void blackfin_icache_dcache_flush_range(unsigned int, unsigned int); -extern void blackfin_icache_flush_range(unsigned int, unsigned int); -extern void blackfin_dcache_flush_range(unsigned int, unsigned int); -extern void blackfin_dcache_invalidate_range(unsigned int, unsigned int); -extern void blackfin_dflush_page(void *); +extern void blackfin_icache_dcache_flush_range(unsigned long start_address, unsigned long end_address); +extern void blackfin_icache_flush_range(unsigned long start_address, unsigned long end_address); +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); #define flush_dcache_mmap_lock(mapping) do { } while (0) #define flush_dcache_mmap_unlock(mapping) do { } while (0) @@ -85,4 +85,21 @@ do { memcpy(dst, src, len); \ # define flush_dcache_page(page) do { } while (0) #endif +extern unsigned long reserved_mem_dcache_on; +extern unsigned long reserved_mem_icache_on; + +static inline int bfin_addr_dcachable(unsigned long addr) +{ +#ifdef CONFIG_BFIN_DCACHE + if (addr < (_ramend - DMA_UNCACHED_REGION)) + return 1; +#endif + + if (reserved_mem_dcache_on && + addr >= _ramend && addr < physical_mem_end) + return 1; + + return 0; +} + #endif /* _BLACKFIN_ICACHEFLUSH_H */ |