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kmd: trigger RCE snapshot on timeout

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Jira CAMERASW-32243

Change-Id: I529a0d39990f6a20ff9780089383deebe22e2741
Signed-off-by: Mark Krueger <mkrueger@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3355776
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: Ying Zhou <yizhou@nvidia.com>
Reviewed-by: Shiva Dubey <sdubey@nvidia.com>
Reviewed-by: svcacv <svcacv@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: Mohit Ingale <mohiti@nvidia.com>
This commit is contained in:
Mark Stephen Krueger
2025-05-05 16:13:12 -04:00
committed by Jon Hunter
parent e6a11f7e4c
commit 872a72234a
3 changed files with 21 additions and 0 deletions
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6
drivers/platform/tegra/rtcpu/rtcpu-debug.c
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@@ -28,6 +28,7 @@
#include <linux/tegra-ivc-bus.h>
#include <linux/platform/tegra/common.h>
#include <soc/tegra/fuse.h>
#include <linux/tegra-rtcpu-trace.h>
#define CAMRTC_TEST_CAM_DEVICES 5
@@ -338,8 +339,11 @@ DEFINE_SEQ_FOPS(camrtc_dbgfs_fops_forced_reset_restore,
* - Verifies IVC channel is online with @ref tegra_ivc_channel_online_check()
* - Flushes any stray responses by calling @ref tegra_ivc_read_advance()
* - Waits for write availability using @ref wait_event_interruptible_timeout()
* - If the wait times out log the RCE snapshot by calling @ref rtcpu_trace_panic_callback().
* - Writes request using @ref tegra_ivc_write()
* - Waits for and reads response using @ref tegra_ivc_read_peek()
* - If the response is not received within the timeout,
* log the RCE snapshot by calling @ref rtcpu_trace_panic_callback().
* - Verifies response matches request type
* - Releases resources and lock using @ref tegra_ivc_channel_runtime_put() and @ref mutex_unlock()
*
@@ -404,6 +408,7 @@ static int camrtc_ivc_dbg_full_frame_xact(
tegra_ivc_channel_has_been_reset(ch) ||
tegra_ivc_can_write(&ch->ivc), timeout);
if (timeout <= 0) {
rtcpu_trace_panic_callback(camrtc_get_device(ch));
ret = timeout ?: -ETIMEDOUT;
goto out;
}
@@ -424,6 +429,7 @@ static int camrtc_ivc_dbg_full_frame_xact(
tegra_ivc_can_read(&ch->ivc),
timeout);
if (timeout <= 0) {
rtcpu_trace_panic_callback(camrtc_get_device(ch));
ret = timeout ?: -ETIMEDOUT;
break;
}