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Diffstat (limited to 'drivers/gpu/drm/msm/adreno/a6xx_hfi.h')
-rw-r--r--drivers/gpu/drm/msm/adreno/a6xx_hfi.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_hfi.h b/drivers/gpu/drm/msm/adreno/a6xx_hfi.h
index 2bd670ca42d6..528110169398 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_hfi.h
+++ b/drivers/gpu/drm/msm/adreno/a6xx_hfi.h
@@ -33,6 +33,17 @@ struct a6xx_hfi_queue {
spinlock_t lock;
u32 *data;
atomic_t seqnum;
+
+ /*
+ * Tracking for the start index of the last N messages in the
+ * queue, for the benefit of devcore dump / crashdec (since
+ * parsing in the reverse direction to decode the last N
+ * messages is difficult to do and would rely on heuristics
+ * which are not guaranteed to be correct)
+ */
+#define HFI_HISTORY_SZ 8
+ s32 history[HFI_HISTORY_SZ];
+ u8 history_idx;
};
/* This is the outgoing queue to the GMU */