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| author | Nicolas Pitre <nicolas.pitre@linaro.org> | 2018-11-09 06:26:39 +0300 |
|---|---|---|
| committer | Russell King <rmk+kernel@armlinux.org.uk> | 2018-11-12 13:51:54 +0300 |
| commit | bc2eca9a682881f9da3cc7e2d75b752e549a134d (patch) | |
| tree | 16fcd1563623fd65ccc04358db0588fcba21cb8b /arch/arm/mm/copypage-xscale.c | |
| parent | 82c08c3e7f171aa7f579b231d0abbc1d62e91974 (diff) | |
| download | linux-bc2eca9a682881f9da3cc7e2d75b752e549a134d.tar.xz | |
ARM: 8811/1: always list both ldrd/strd registers explicitly
The ldrd and strd instructions work on a pair of consecutive registers.
It is possible to specify either the first register in the pair, or both
registers explicitly. Let's always do the later to make things clearer.
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Suggested-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'arch/arm/mm/copypage-xscale.c')
| -rw-r--r-- | arch/arm/mm/copypage-xscale.c | 40 |
1 files changed, 20 insertions, 20 deletions
diff --git a/arch/arm/mm/copypage-xscale.c b/arch/arm/mm/copypage-xscale.c index b0ae8c7acb48..63b921936754 100644 --- a/arch/arm/mm/copypage-xscale.c +++ b/arch/arm/mm/copypage-xscale.c @@ -53,26 +53,26 @@ static void mc_copy_user_page(void *from, void *to) pld [%0, #96] \n\ pld [%1, #64] \n\ pld [%1, #96] \n\ -2: ldrd r2, [%0], #8 \n\ - ldrd r4, [%0], #8 \n\ +2: ldrd r2, r3, [%0], #8 \n\ + ldrd r4, r5, [%0], #8 \n\ mov ip, %1 \n\ - strd r2, [%1], #8 \n\ - ldrd r2, [%0], #8 \n\ - strd r4, [%1], #8 \n\ - ldrd r4, [%0], #8 \n\ - strd r2, [%1], #8 \n\ - strd r4, [%1], #8 \n\ + strd r2, r3, [%1], #8 \n\ + ldrd r2, r3, [%0], #8 \n\ + strd r4, r5, [%1], #8 \n\ + ldrd r4, r5, [%0], #8 \n\ + strd r2, r3, [%1], #8 \n\ + strd r4, r5, [%1], #8 \n\ mcr p15, 0, ip, c7, c10, 1 @ clean D line\n\ - ldrd r2, [%0], #8 \n\ + ldrd r2, r3, [%0], #8 \n\ mcr p15, 0, ip, c7, c6, 1 @ invalidate D line\n\ - ldrd r4, [%0], #8 \n\ + ldrd r4, r5, [%0], #8 \n\ mov ip, %1 \n\ - strd r2, [%1], #8 \n\ - ldrd r2, [%0], #8 \n\ - strd r4, [%1], #8 \n\ - ldrd r4, [%0], #8 \n\ - strd r2, [%1], #8 \n\ - strd r4, [%1], #8 \n\ + strd r2, r3, [%1], #8 \n\ + ldrd r2, r3, [%0], #8 \n\ + strd r4, r5, [%1], #8 \n\ + ldrd r4, r5, [%0], #8 \n\ + strd r2, r3, [%1], #8 \n\ + strd r4, r5, [%1], #8 \n\ mcr p15, 0, ip, c7, c10, 1 @ clean D line\n\ subs %2, %2, #1 \n\ mcr p15, 0, ip, c7, c6, 1 @ invalidate D line\n\ @@ -114,10 +114,10 @@ xscale_mc_clear_user_highpage(struct page *page, unsigned long vaddr) mov r2, #0 \n\ mov r3, #0 \n\ 1: mov ip, %0 \n\ - strd r2, [%0], #8 \n\ - strd r2, [%0], #8 \n\ - strd r2, [%0], #8 \n\ - strd r2, [%0], #8 \n\ + strd r2, r3, [%0], #8 \n\ + strd r2, r3, [%0], #8 \n\ + strd r2, r3, [%0], #8 \n\ + strd r2, r3, [%0], #8 \n\ mcr p15, 0, ip, c7, c10, 1 @ clean D line\n\ subs r1, r1, #1 \n\ mcr p15, 0, ip, c7, c6, 1 @ invalidate D line\n\ |