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| author | Philippe Langlais <philippe.langlais@linaro.org> | 2011-03-28 11:08:15 +0200 |
|---|---|---|
| committer | Philippe Langlais <philippe.langlais@stericsson.com> | 2012-05-22 10:59:42 +0200 |
| commit | d406ed2f763ea85223c38b33a0de4376b999b100 (patch) | |
| tree | 08d30d7cfd9126aff0b29ca0781f8e9b5d24d8f7 /arch/arm/mm/cache-fa.S | |
| parent | e3b6400a1b55e9e5b691a513a1fd407b2757b622 (diff) | |
Add clean and flush_dcache_all to ARM cache API
This patch adds functions to flush and clean the entire data cache.
Since the existing flush/clean range functions take more time to
flush/clean the entire data cache, they cannot be used.
Whenever the range of data to be flushed/cleaned from the data cache
is more than some threshold value, it is better to do the entire data
flush/clean, this will reduce the time taken and effectively
increases the performance of the system.
ST-Ericsson ID: IR275682 ER275397
Change-Id: I8d7e6004232301cc2c9922738fa728cdc833cfde
Signed-off-by: Johan Mossberg <johan.xx.mossberg@stericsson.com>
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/7161
Reviewed-by: Robert FEKETE <robert.fekete@stericsson.com>
Reviewed-by: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
Conflicts:
arch/arm/mm/cache-v7.S
Diffstat (limited to 'arch/arm/mm/cache-fa.S')
| -rw-r--r-- | arch/arm/mm/cache-fa.S | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/arm/mm/cache-fa.S b/arch/arm/mm/cache-fa.S index 07201637109..226f8736152 100644 --- a/arch/arm/mm/cache-fa.S +++ b/arch/arm/mm/cache-fa.S @@ -240,6 +240,24 @@ ENTRY(fa_dma_unmap_area) mov pc, lr ENDPROC(fa_dma_unmap_area) +/* + * clean_dcache_all() + * + * Clean the whole D-cache. + */ +ENTRY(fa_clean_dcache_all) + mov pc, lr +ENDPROC(fa_clean_dcache_all) + +/* + * flush_dcache_all() + * + * Flush the whole D-cache. + */ +ENTRY(fa_flush_dcache_all) + mov pc, lr +ENDPROC(fa_flush_dcache_all) + __INITDATA @ define struct cpu_cache_fns (see <asm/cacheflush.h> and proc-macros.S) |