diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-04-03 11:21:42 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-04-14 22:26:52 +0100 |
| commit | cd8b24d9e852b53e68c69a086358c81423dfb8d1 (patch) | |
| tree | 9393ff2f7d6bd650f802ff5408b5facdc3b5bc86 /arch/arm/mm | |
| parent | 47b8484ea6569511a3cd915bea29886b4cd08333 (diff) | |
ARM: cache-v7: consolidate initialisation of cache level index
Both v7_flush_cache_louis and v7_flush_dcache_all both begin the
flush_levels loop with r10 initialised to zero. In each case, this
is done immediately prior to entering the loop. Branch to this
instruction in v7_flush_dcache_all from v7_flush_cache_louis and
eliminate the unnecessary initialisation in v7_flush_cache_louis.
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mm')
| -rw-r--r-- | arch/arm/mm/cache-v7.S | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/mm/cache-v7.S b/arch/arm/mm/cache-v7.S index d062f8cbb886..5b5d0c00bca7 100644 --- a/arch/arm/mm/cache-v7.S +++ b/arch/arm/mm/cache-v7.S @@ -103,8 +103,7 @@ ALT_UP( mov r3, r0, lsr #26) @ move LoUU into position moveqs r3, #1 << 1 @ fix LoUIS value (and set flags state to 'ne') #endif reteq lr @ return if level == 0 - mov r10, #0 @ r10 (starting level) = 0 - b flush_levels @ start flushing cache levels + b start_flush_levels @ start flushing cache levels ENDPROC(v7_flush_dcache_louis) /* @@ -122,6 +121,7 @@ ENTRY(v7_flush_dcache_all) mov r3, r0, lsr #23 @ move LoC into position ands r3, r3, #7 << 1 @ extract LoC*2 from clidr beq finished @ if loc is 0, then no need to clean +start_flush_levels: mov r10, #0 @ start clean at cache level 0 flush_levels: add r2, r10, r10, lsr #1 @ work out 3x current cache level |