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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2018-09-14 15:40:07 +0300 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2018-09-14 16:28:32 +0300 |
| commit | 5791bad4bc1f624969c875616d1032227f23c25e (patch) | |
| tree | dfcba189761c550942117efa9f973af03dce1d4f /drivers/gpu/drm | |
| parent | 666424abfb863e3e51fcd35baad5f242fc69d314 (diff) | |
| download | linux-5791bad4bc1f624969c875616d1032227f23c25e.tar.xz | |
drm/i915: Include fence-hint for timeout warning
If an asynchronous wait on a foriegn fence, we print a warning
indicating which fence was not signaled. As i915_sw_fences become more
common, include the debug hint (the symbol-name of the target) to help
identify the waiter. E.g.
[ 31.968144] Asynchronous wait on fence sw_sync:gem_eio:1 timed out (hint:submit_notify [i915])
We also want to downgrade from a warning to a notice (normal but
significant condition) as the timeout is imposed and controlled by the
caller (i.e. it is deliberate) and can be provoked by userspace.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180914124007.18790-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_sw_fence.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/i915_sw_fence.c b/drivers/gpu/drm/i915/i915_sw_fence.c index 1de5173e53a2..6dbeed079ae5 100644 --- a/drivers/gpu/drm/i915/i915_sw_fence.c +++ b/drivers/gpu/drm/i915/i915_sw_fence.c @@ -24,13 +24,13 @@ enum { DEBUG_FENCE_NOTIFY, }; -#ifdef CONFIG_DRM_I915_SW_FENCE_DEBUG_OBJECTS - static void *i915_sw_fence_debug_hint(void *addr) { return (void *)(((struct i915_sw_fence *)addr)->flags & I915_SW_FENCE_MASK); } +#ifdef CONFIG_DRM_I915_SW_FENCE_DEBUG_OBJECTS + static struct debug_obj_descr i915_sw_fence_debug_descr = { .name = "i915_sw_fence", .debug_hint = i915_sw_fence_debug_hint, @@ -393,10 +393,11 @@ static void timer_i915_sw_fence_wake(struct timer_list *t) if (!fence) return; - pr_warn("asynchronous wait on fence %s:%s:%x timed out\n", - cb->dma->ops->get_driver_name(cb->dma), - cb->dma->ops->get_timeline_name(cb->dma), - cb->dma->seqno); + pr_notice("Asynchronous wait on fence %s:%s:%x timed out (hint:%pS)\n", + cb->dma->ops->get_driver_name(cb->dma), + cb->dma->ops->get_timeline_name(cb->dma), + cb->dma->seqno, + i915_sw_fence_debug_hint(fence)); i915_sw_fence_complete(fence); } |