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kmd: re-enable the panic_callback

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- introduced a panic_flag in the tegra_rtcpu_trace.
- set panic_flag to 1 when kmd receives panic hsp
  message from RCE.
- the trace buffer readout thread calls rtcpu_trace_snapshot
  to dump out the snapshot section when panic_flag is set to 1.

Bug 5293085

Change-Id: Ief5d9431bfc944fc588f38a69f7758f829cf2e6e
Signed-off-by: yizhou <yizhou@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3368252
Reviewed-by: Evgeny Kornev <ekornev@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: Chinniah Poosapadi <cpoosapadi@nvidia.com>
Reviewed-by: Mohit Ingale <mohiti@nvidia.com>
Reviewed-by: Kalle Jokiniemi <kjokiniemi@nvidia.com>
This commit is contained in:
yizhou
2025-05-21 06:58:19 +00:00
committed by Jon Hunter
parent b42f5d8ada
commit 737925e58e
4 changed files with 36 additions and 19 deletions
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3
drivers/platform/tegra/rtcpu/hsp-mailbox-client.c
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@@ -243,8 +243,7 @@ static void camrtc_hsp_rx_full_notify(mbox_client *cl, void *data)
} else if (CAMRTC_HSP_MSG_ID(msg) == CAMRTC_HSP_PANIC) {
dev_err(&camhsp->dev, "%s: receive CAMRTC_HSP_PANIC message!\n", __func__);
if (camhsp->panic_callback != NULL) {
// disable panic_callback as the workaround for https://nvbugspro.nvidia.com/bug/5293085
//camhsp->panic_callback(camhsp->dev.parent);
camhsp->panic_callback(camhsp->dev.parent);
} else {
dev_warn(&camhsp->dev, "%s: No panic callback function is registered.\n", __func__);
}