From: Rob Clark <robdcl...@chromium.org>
Add a param so that userspace can query the fault count for faults that
might effect them (ie. any context sharing the same address space).
Signed-off-by: Rob Clark <robdcl...@chromium.org>
---
drivers/gpu/drm/msm/adreno/adreno_gpu.c | 3 +++
drivers/gpu/drm/msm/msm_drv.c | 1 +
drivers/gpu/drm/msm/msm_gem.h | 3 +++
drivers/gpu/drm/msm/msm_gpu.c | 1 +
include/uapi/drm/msm_drm.h | 3 ++-
5 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c
b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
index caa9076197de..05899c77ca38 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
@@ -271,6 +271,9 @@ int adreno_get_param(struct msm_gpu *gpu, struct
msm_file_private *ctx,
case MSM_PARAM_FAULTS:
*value = gpu->global_faults;
return 0;
+ case MSM_PARAM_AS_FAULTS:
+ *value = ctx->aspace->faults;
+ return 0;
case MSM_PARAM_SUSPENDS:
*value = gpu->suspend_count;
return 0;
diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index 72060247e43c..39ab9a361d7f 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -41,6 +41,7 @@
* - 1.6.0 - Syncobj support
* - 1.7.0 - Add MSM_PARAM_SUSPENDS to access suspend count
* - 1.8.0 - Add MSM_BO_CACHED_COHERENT for supported GPUs (a6xx)
+ * - 1.9.0 - Add MSM_PARAM_AS_FAULTS
*/
#define MSM_VERSION_MAJOR 1
#define MSM_VERSION_MINOR 8
diff --git a/drivers/gpu/drm/msm/msm_gem.h b/drivers/gpu/drm/msm/msm_gem.h
index 54ca0817d807..af612add5264 100644
--- a/drivers/gpu/drm/msm/msm_gem.h
+++ b/drivers/gpu/drm/msm/msm_gem.h
@@ -35,6 +35,9 @@ struct msm_gem_address_space {
* will be non-NULL:
*/
struct pid *pid;
+
+ /* @faults: the number of GPU hangs associated with this address space
*/
+ int faults;
};
struct msm_gem_vma {
diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c
index 2c1049c0ea14..1029a51cb016 100644
--- a/drivers/gpu/drm/msm/msm_gpu.c
+++ b/drivers/gpu/drm/msm/msm_gpu.c
@@ -372,6 +372,7 @@ static void recover_worker(struct kthread_work *work)
/* Increment the fault counts */
gpu->global_faults++;
submit->queue->faults++;
+ submit->aspace->faults++;
task = get_pid_task(submit->pid, PIDTYPE_PID);
if (task) {
diff --git a/include/uapi/drm/msm_drm.h b/include/uapi/drm/msm_drm.h
index 6b8fffc28a50..b7d92868b945 100644
--- a/include/uapi/drm/msm_drm.h
+++ b/include/uapi/drm/msm_drm.h
@@ -75,8 +75,9 @@ struct drm_msm_timespec {
#define MSM_PARAM_GMEM_BASE 0x06
#define MSM_PARAM_PRIORITIES 0x07 /* The # of priority levels */
#define MSM_PARAM_PP_PGTABLE 0x08 /* => 1 for per-process pagetables, else 0
*/
-#define MSM_PARAM_FAULTS 0x09
+#define MSM_PARAM_FAULTS 0x09 /* global fault count */
#define MSM_PARAM_SUSPENDS 0x0a
+#define MSM_PARAM_AS_FAULTS 0x0b /* faults in any context sharing same
address space */
/* For backwards compat. The original support for preemption was based on
* a single ring per priority level so # of priority levels equals the #
--
2.34.1
