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| author | Vadim Bendebury <vbendeb@chromium.org> | 2016-07-13 18:25:12 -0700 |
|---|---|---|
| committer | ChromeOS Commit Bot <chromeos-commit-bot@chromium.org> | 2016-07-14 01:49:09 +0000 |
| commit | de8fb11bfd07d3fea2048b6848b8a183c31e2580 (patch) | |
| tree | 2da71e7fbc350ef26bdc9b8c2b5ff259f43c7ec1 | |
| parent | d65cb2f69a9318e84b80f87448e0485951212c65 (diff) | |
| download | chrome-ec-de8fb11bfd07d3fea2048b6848b8a183c31e2580.tar.gz | |
tpm: fire watchdog before executing commands
In certain test scenarios the tpm task is hogging all resource and
causes watchdog resets. Let's kick the watchdog in every loop, Long
calculations already have watchdog kicking in place.
BRANCH=ToT
BUG=none
TEST=tests executed in rapid succession do not cause watchdog resets
any more.
Change-Id: Ifaad6f9b4af2218f601412a36a075b4b4275d56f
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/360229
Reviewed-by: Marius Schilder <mschilder@chromium.org>
Tested-by: Marius Schilder <mschilder@chromium.org>
| -rw-r--r-- | common/tpm_registers.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/common/tpm_registers.c b/common/tpm_registers.c index 8eb016adfe..50b0d694af 100644 --- a/common/tpm_registers.c +++ b/common/tpm_registers.c @@ -20,6 +20,7 @@ #include "tpm_manufacture.h" #include "tpm_registers.h" #include "util.h" +#include "watchdog.h" /* TPM2 library includes. */ #include "Platform.h" /* Keep this one on top. */ @@ -530,6 +531,8 @@ void tpm_task(void) CPRINTF("%s: received fifo command 0x%04x\n", __func__, command_code); + watchdog_reload(); + #ifdef CONFIG_EXTENSION_COMMAND if (command_code == CONFIG_EXTENSION_COMMAND) { response_size = sizeof(tpm_.regs.data_fifo); |