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| author | Tzung-Bi Shih <tzungbi@chromium.org> | 2021-03-19 17:03:05 +0800 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-03-22 03:19:11 +0000 |
| commit | 740b80bc5286e133fa2ff12e7b08c2ef8f6688fb (patch) | |
| tree | 9c37d5f258df77579c4b159581b9cb8ef50b6029 /chip | |
| parent | 00ff5771a702bad79d6d1e1f4592dc9312e4fe69 (diff) | |
| download | chrome-ec-740b80bc5286e133fa2ff12e7b08c2ef8f6688fb.tar.gz | |
chip/mt8192_scp: flush memory cache before notifying AP
Flushes memory cache before notifying AP when sending IPI message.
BRANCH=none
BUG=b:167466842
TEST=make BOARD=asurada_scp
Signed-off-by: Tzung-Bi Shih <tzungbi@chromium.org>
Change-Id: I91807e8957e8ea341c4ad8e5b904ac3be68b5cba
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2772413
Reviewed-by: Eric Yilun Lin <yllin@chromium.org>
Diffstat (limited to 'chip')
| -rw-r--r-- | chip/mt8192_scp/ipi.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/chip/mt8192_scp/ipi.c b/chip/mt8192_scp/ipi.c index 39fcc09809..76af0af838 100644 --- a/chip/mt8192_scp/ipi.c +++ b/chip/mt8192_scp/ipi.c @@ -4,6 +4,7 @@ */ #include "atomic.h" +#include "cache.h" #include "common.h" #include "console.h" #include "hooks.h" @@ -97,6 +98,10 @@ int ipi_send(int32_t id, const void *buf, uint32_t len, int wait) ipi_send_buf->len = len; memcpy(ipi_send_buf->buffer, buf, len); + /* flush memory cache (if any) */ + cache_flush_dcache_range((uintptr_t)ipi_send_buf, + sizeof(*ipi_send_buf)); + /* interrupt AP to handle the message */ ipi_wake_ap(id); SCP_SCP2APMCU_IPC_SET = IPC_SCP2HOST; |