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| author | Rob Clark <robdclark@chromium.org> | 2019-04-17 01:13:28 +0200 |
|---|---|---|
| committer | Rob Clark <robdclark@chromium.org> | 2019-04-19 20:50:00 +0200 |
| commit | 48dc4241c9cd62bfbe33625e669e21d7081d35fa (patch) | |
| tree | e6406acd799be59e50bc0b37af6fe5f18718ab23 /drivers/gpu/drm | |
| parent | drm/msm/gpu: add per-process pagetables param (diff) | |
| download | linux-48dc4241c9cd62bfbe33625e669e21d7081d35fa.tar.xz linux-48dc4241c9cd62bfbe33625e669e21d7081d35fa.zip | |
drm/msm: add param to retrieve # of GPU faults (global)
For KHR_robustness, userspace wants to know two things, the count of GPU
faults globally, and the count of faults attributed to a given context.
This patch providees the former, and the next patch provides the latter.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Jordan Crouse <jcrouse@codeaurora.org>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/adreno_gpu.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gpu.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gpu.h | 3 |
3 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c index 7727917806ce..6de08cfc38aa 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c @@ -66,6 +66,9 @@ int adreno_get_param(struct msm_gpu *gpu, uint32_t param, uint64_t *value) case MSM_PARAM_PP_PGTABLE: *value = 0; return 0; + case MSM_PARAM_FAULTS: + *value = gpu->global_faults; + return 0; default: DBG("%s: invalid param: %u", gpu->name, param); return -EINVAL; diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c index 10babd18e286..194847a220b6 100644 --- a/drivers/gpu/drm/msm/msm_gpu.c +++ b/drivers/gpu/drm/msm/msm_gpu.c @@ -443,6 +443,9 @@ static void recover_worker(struct work_struct *work) if (submit) { struct task_struct *task; + /* Increment the fault count */ + gpu->global_faults++; + task = get_pid_task(submit->pid, PIDTYPE_PID); if (task) { comm = kstrdup(task->comm, GFP_KERNEL); diff --git a/drivers/gpu/drm/msm/msm_gpu.h b/drivers/gpu/drm/msm/msm_gpu.h index 6241986bab51..f2739cd97cea 100644 --- a/drivers/gpu/drm/msm/msm_gpu.h +++ b/drivers/gpu/drm/msm/msm_gpu.h @@ -104,6 +104,9 @@ struct msm_gpu { /* does gpu need hw_init? */ bool needs_hw_init; + /* number of GPU hangs (for all contexts) */ + int global_faults; + /* worker for handling active-list retiring: */ struct work_struct retire_work; |