UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

drm/i915: Use ABI engine class in error state ecode 

Instead of printing out the internal engine mask, which can change between
kernel versions making it difficult to map to actual engines, present a
bitmask of hanging engines ABI classes. For example:

  [drm] GPU HANG: ecode 9:8:24dffffd, in gem_exec_schedu [1334]

Engine ABI class is useful to quickly categorize render vs media etc hangs
in bug reports. Considering virtual engine even more so than the current
scheme.

v2:
 * Do not re-order fields. (Chris)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20201105113842.1395391-1-tvrtko.ursulin@linux.intel.com
This commit is contained in:
Tvrtko Ursulin 2020-11-05 11:38:42 +00:00
parent bda3002485
commit 2dae0c8529
1 changed files with 3 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/gpu/drm/i915/i915_gpu_error.c
View File

@ -1659,17 +1659,16 @@ static u32 generate_ecode(const struct intel_engine_coredump *ee)
static const char *error_msg(struct i915_gpu_coredump *error)
{
struct intel_engine_coredump *first = NULL;
unsigned int hung_classes = 0;
struct intel_gt_coredump *gt;
intel_engine_mask_t engines;
int len;
engines = 0;
for (gt = error->gt; gt; gt = gt->next) {
struct intel_engine_coredump *cs;
for (cs = gt->engine; cs; cs = cs->next) {
if (cs->hung) {
engines |= cs->engine->mask;
hung_classes |= BIT(cs->engine->uabi_class);
if (!first)
first = cs;
}
@ -1678,7 +1677,7 @@ static const char *error_msg(struct i915_gpu_coredump *error)
len = scnprintf(error->error_msg, sizeof(error->error_msg),
"GPU HANG: ecode %d:%x:%08x",
INTEL_GEN(error->i915), engines,
INTEL_GEN(error->i915), hung_classes,
generate_ecode(first));
if (first && first->context.pid) {
/* Just show the first executing process, more is confusing */