summaryrefslogtreecommitdiff
path: root/payloads/libpayload/arch
diff options
context:
space:
mode:
authorDavid Hendricks <dhendrix@chromium.org>2013-08-16 12:17:50 -0700
committerIsaac Christensen <isaac.christensen@se-eng.com>2014-08-01 19:32:20 +0200
commitb98ab4a893798a5bda9d143943f6930ffaae2b68 (patch)
treed603dfc7e1d2de47b1203aff84f6ae5985d8d8aa /payloads/libpayload/arch
parentcaf1df0278ef743274b7811e0b4bfb58c122ce4e (diff)
downloadcoreboot-b98ab4a893798a5bda9d143943f6930ffaae2b68.tar.xz
armv7: add wrapper for DCCSW (data cache clean by set/way)
This adds a wrapper for data cache clean (without invalidate) by set/way. Signed-off-by: David Hendricks <dhendrix@chromium.org> Old-Change-Id: I09ee1563890350a6c1d04f1b96ac5d0c042e2af2 Reviewed-on: https://gerrit.chromium.org/gerrit/66118 Commit-Queue: David Hendricks <dhendrix@chromium.org> Tested-by: David Hendricks <dhendrix@chromium.org> Reviewed-by: Ronald G. Minnich <rminnich@chromium.org> (cherry picked from commit 05bc4f8564c547eacb9cc840a03b916b3c1c6001) armv7: clean but do not invalidate caches between stages This cleans the caches without invalidating them between stages. The dcache content should still be valid when the next stage begins, so we should see a small performance gain. (thanks to gabeblack for pointing this out) Signed-off-by: David Hendricks <dhendrix@chromium.org> Old-Change-Id: Ie18d163f3a78e2786e9fbc7479c8bd896b8ac3aa Reviewed-on: https://gerrit.chromium.org/gerrit/66119 Commit-Queue: David Hendricks <dhendrix@chromium.org> Tested-by: David Hendricks <dhendrix@chromium.org> Reviewed-by: Ronald G. Minnich <rminnich@chromium.org> (cherry picked from commit 619bfe4cf9b93847e38d03d7076beb78fbfa1d1d) armv7: Make coreboot and libpayload cache files the same This merges the difference between the ARM version of cache.c and cache.h for libpayload and coreboot. Signed-off-by: David Hendricks <dhendrix@chromium.org> Old-Change-Id: I246d2ec98385100304266f4bb15337a8fcf8df93 Reviewed-on: https://gerrit.chromium.org/gerrit/66120 Commit-Queue: David Hendricks <dhendrix@chromium.org> Tested-by: David Hendricks <dhendrix@chromium.org> Reviewed-by: Ronald G. Minnich <rminnich@chromium.org> (cherry picked from commit 0c92f694034f1e94a8aa7811251738c9dc3db2c6) ARM: Fix cache cleaning operation. There was no behavior defined for OP_DCCSW in dcache_op_set_way, so it silently did nothing. Since we started using that to clean the cache between stages and I have a change that enables caches earlier on, this was preventing booting on pit. Old-Change-Id: I3615b6569bf8de195d19d26b62f02932322b7601 Signed-off-by: Gabe Black <gabeblack@google.com> Reviewed-on: https://gerrit.chromium.org/gerrit/66234 Reviewed-by: David Hendricks <dhendrix@chromium.org> Commit-Queue: Gabe Black <gabeblack@chromium.org> Tested-by: Gabe Black <gabeblack@chromium.org> (cherry picked from commit 99241468cb9dcc86fcca9266ffe72baa88a1f79f) libpayload: Fix data cache cleaning on ARM. A similar fix was made to coreboot where OP_DCCSW was silently not doing anything in dcache_op_set_way. Old-Change-Id: Ia0798aef0cd02da7d1a14b7affa05038a002ab3b Signed-off-by: Gabe Black <gabeblack@google.com> Reviewed-on: https://gerrit.chromium.org/gerrit/66236 Reviewed-by: David Hendricks <dhendrix@chromium.org> Commit-Queue: Gabe Black <gabeblack@chromium.org> Tested-by: Gabe Black <gabeblack@chromium.org> (cherry picked from commit 6f6596a182a6780a2e997ac320733722697990c5) Squashed five related commits. Change-Id: I763d42bd5dd9f58734e1e21eb7c8ce3ce2ea56ee Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com> Reviewed-on: http://review.coreboot.org/6418 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks <dhendrix@chromium.org> Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Diffstat (limited to 'payloads/libpayload/arch')
-rw-r--r--payloads/libpayload/arch/armv7/cache.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/payloads/libpayload/arch/armv7/cache.c b/payloads/libpayload/arch/armv7/cache.c
index efdf75ebbf..b4a937bf43 100644
--- a/payloads/libpayload/arch/armv7/cache.c
+++ b/payloads/libpayload/arch/armv7/cache.c
@@ -76,6 +76,7 @@ void icache_invalidate_all(void)
}
enum dcache_op {
+ OP_DCCSW,
OP_DCCISW,
OP_DCISW,
OP_DCCIMVAC,
@@ -142,6 +143,9 @@ static void dcache_op_set_way(enum dcache_op op)
case OP_DCISW:
dcisw(val);
break;
+ case OP_DCCSW:
+ dccsw(val);
+ break;
default:
break;
}
@@ -175,6 +179,11 @@ static void dcache_foreach(enum dcache_op op)
}
}
+void dcache_clean_all(void)
+{
+ dcache_foreach(OP_DCCSW);
+}
+
void dcache_clean_invalidate_all(void)
{
dcache_foreach(OP_DCCISW);