msm: kgsl: On pagefault stall GPU so that it hangs
Prevent the iommu fault handler from clearing the stalled status
of GPU on page fault. This will cause a GPU hang and print out
the snapshot that will help in fault analysis.
Change-Id: I9dcab83a098a988f86a0c03c46b0dbe6624de937
Signed-off-by: Shubhraprakash Das <sadas@codeaurora.org>
Signed-off-by: Rajeev Kulkarni <krajeev@codeaurora.org>
diff --git a/drivers/gpu/msm/adreno.h b/drivers/gpu/msm/adreno.h
index 66402fe..75c52e2 100644
--- a/drivers/gpu/msm/adreno.h
+++ b/drivers/gpu/msm/adreno.h
@@ -138,6 +138,7 @@
* bad_rb_size - Number of valid dwords in bad_rb_buffer
* @last_valid_ctx_id - The last context from which commands were placed in
* ringbuffer before the GPU hung
+ * @fault - Indicates whether the hang was caused due to a pagefault
*/
struct adreno_recovery_data {
unsigned int ib1;
@@ -148,6 +149,7 @@
unsigned int *bad_rb_buffer;
unsigned int bad_rb_size;
unsigned int last_valid_ctx_id;
+ int fault;
};
extern struct adreno_gpudev adreno_a2xx_gpudev;