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gpu: nvgpu: dump debug info on semaphore acquire timeout

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Channel RAMFC has details about the semaphore operation the channel
is performing. Getting this can be helpful in debugging the semaph-
ore acquire timeout.

Add gk20a_debug_dump to pbdma interrupt handler for this case.

Bug 3430929

Change-Id: Ia5e3b191a77a7e54d02f45ed2d1beb266905b564
Signed-off-by: Sagar Kamble <skamble@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2675344
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-misra <svc-mobile-misra@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
GVS: Gerrit_Virtual_Submit
This commit is contained in:
Sagar Kamble
2022-02-25 16:47:50 +05:30
committed by mobile promotions
parent 086909ddd0
commit 79b37d7832
2 changed files with 5 additions and 0 deletions
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3
drivers/gpu/nvgpu/hal/fifo/pbdma_ga10b_fusa.c
View File

@@ -23,6 +23,7 @@
#include <nvgpu/log.h> #include <nvgpu/log.h>
#include <nvgpu/log2.h> #include <nvgpu/log2.h>
#include <nvgpu/utils.h> #include <nvgpu/utils.h>
#include <nvgpu/debug.h>
#include <nvgpu/io.h> #include <nvgpu/io.h>
#include <nvgpu/bitops.h> #include <nvgpu/bitops.h>
#include <nvgpu/error_notifier.h> #include <nvgpu/error_notifier.h>
@@ -435,6 +436,8 @@ static bool ga10b_pbdma_handle_intr_0_legacy(struct gk20a *g, u32 pbdma_id,
recover = true; recover = true;
nvgpu_err(g, "semaphore acquire timeout!"); nvgpu_err(g, "semaphore acquire timeout!");
gk20a_debug_dump(g);
/* /*
* Note: the error_notifier can be overwritten if * Note: the error_notifier can be overwritten if
* semaphore_timeout is triggered with pbcrc_pending * semaphore_timeout is triggered with pbcrc_pending

2
drivers/gpu/nvgpu/hal/fifo/pbdma_gm20b_fusa.c
View File

@@ -167,6 +167,8 @@ bool gm20b_pbdma_handle_intr_0(struct gk20a *g, u32 pbdma_id,
recover = true; recover = true;
nvgpu_err(g, "semaphore acquire timeout!"); nvgpu_err(g, "semaphore acquire timeout!");
gk20a_debug_dump(g);
/* /*
* Note: the error_notifier can be overwritten if * Note: the error_notifier can be overwritten if
* semaphore_timeout is triggered with pbcrc_pending * semaphore_timeout is triggered with pbcrc_pending