While newer kbase include only the numbers of errata, older kbase
releases included one-line descriptions for each errata, which is useful
for those working on the driver. Import these descriptions. Most are
from kbase verbatim; a few I edited for clarity.
A few issues pertaining to newer models are unknown as they were not
added to kbase until after kbase began stripping these comments.
Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzw...@collabora.com>
---
drivers/gpu/drm/panfrost/panfrost_issues.h | 80 ++++++++++++++++++++++
1 file changed, 80 insertions(+)
diff --git a/drivers/gpu/drm/panfrost/panfrost_issues.h
b/drivers/gpu/drm/panfrost/panfrost_issues.h
index cec6dcdad..af3a31539 100644
--- a/drivers/gpu/drm/panfrost/panfrost_issues.h
+++ b/drivers/gpu/drm/panfrost/panfrost_issues.h
@@ -13,37 +13,117 @@
* to care about.
*/
enum panfrost_hw_issue {
+ /* Need way to guarantee that all previously-translated memory accesses
+ * are commited */
HW_ISSUE_6367,
+
+ /* On job complete with non-done the cache is not flushed */
HW_ISSUE_6787,
+
+ /* Write of PRFCNT_CONFIG_MODE_MANUAL to PRFCNT_CONFIG causes a
+ * instrumentation dump if PRFCNT_TILER_EN is enabled */
HW_ISSUE_8186,
+
+ /* TIB: Reports faults from a vtile which has not yet been allocated */
HW_ISSUE_8245,
+
+ /* uTLB deadlock could occur when writing to an invalid page at the
+ * same time as access to a valid page in the same uTLB cache line ( ==
+ * 4 PTEs == 16K block of mapping) */
HW_ISSUE_8316,
+
+ /* HT: TERMINATE for RUN command ignored if previous LOAD_DESCRIPTOR is
+ * still executing */
HW_ISSUE_8394,
+
+ /* CSE: Sends a TERMINATED response for a task that should not be
+ * terminated */
HW_ISSUE_8401,
+
+ /* Repeatedly Soft-stopping a job chain consisting of (Vertex Shader,
+ * Cache Flush, Tiler) jobs causes DATA_INVALID_FAULT on tiler job. */
HW_ISSUE_8408,
+
+ /* Disable the Pause Buffer in the LS pipe. */
HW_ISSUE_8443,
+
+ /* Change in RMUs in use causes problems related with the core's SDC */
HW_ISSUE_8987,
+
+ /* Compute endpoint has a 4-deep queue of tasks, meaning a soft stop
+ * won't complete until all 4 tasks have completed */
HW_ISSUE_9435,
+
+ /* HT: Tiler returns TERMINATED for command that hasn't been terminated
+ */
HW_ISSUE_9510,
+
+ /* Occasionally the GPU will issue multiple page faults for the same
+ * address before the MMU page table has been read by the GPU */
HW_ISSUE_9630,
+
+ /* RA DCD load request to SDC returns invalid load ignore causing
+ * colour buffer mismatch */
HW_ISSUE_10327,
+
+ /* MMU TLB invalidation hazards */
HW_ISSUE_10649,
+
+ /* Missing cache flush in multi core-group configuration */
HW_ISSUE_10676,
+
+ /* Chicken bit on T72X for a hardware workaround in compiler */
HW_ISSUE_10797,
+
+ /* Soft-stopping fragment jobs might fail with TILE_RANGE_FAULT */
HW_ISSUE_10817,
+
+ /* Intermittent missing interrupt on job completion */
HW_ISSUE_10883,
+
+ /* Soft-stopping fragment jobs might fail with TILE_RANGE_ERROR
+ * (similar to issue 10817) and can use HW_ISSUE_10817 workaround
+ */
HW_ISSUE_10959,
+
+ /* Soft-stopped fragment shader job can restart with out-of-bound
+ * restart index
+ */
HW_ISSUE_10969,
+
+ /* Race condition can cause tile list corruption */
HW_ISSUE_11020,
+
+ /* Write buffer can cause tile list corruption */
HW_ISSUE_11024,
+
+ /* Pause buffer can cause a fragment job hang */
HW_ISSUE_11035,
+
+ /* TODO: Unknown */
HW_ISSUE_11056,
+
+ /* Clear encoder state for a hard stopped fragment job which is AFBC
+ * encoded by soft resetting the GPU. Only for T76X r0p0, r0p1 and
+ * r0p1_50rel0
+ */
HW_ISSUE_T76X_3542,
+
+ /* Keep tiler module clock on to prevent GPU stall */
HW_ISSUE_T76X_3953,
+
+ /* TODO: Unknown */
HW_ISSUE_TMIX_8463,
+
+ /* TODO: Unknown */
GPUCORE_1619,
+
+ /* TODO: Unknown */
HW_ISSUE_TMIX_8438,
+
+ /* TODO: Unknown */
HW_ISSUE_TGOX_R1_1234,
+
HW_ISSUE_END
};
--
2.20.1
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