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| author |   Chris Wilson <chris@chris-wilson.co.uk> | 2019-08-18 00:25:11 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-08-18 12:38:09 +0100 |
| commit | ef468849751251864a50576a3b0df43448a960fe (patch) | |
| tree | 064ee2e5fc17fad4114e59d25e4c4b9095afe5bc /drivers/gpu/drm/i915/i915_sw_fence.h | |
| parent | drm/i915/uc: Never fail on HuC firmware errors (diff) | |
| download | linux-dev-ef468849751251864a50576a3b0df43448a960fe.tar.xz linux-dev-ef468849751251864a50576a3b0df43448a960fe.zip | |
drm/i915: Propagate fence errors
Errors spread like wildfire, and must eventually be returned to the
user. They need to be captured and passed along the flow of fences,
infecting each in turn with the existing error, until finally they fall
out of a user visible result.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190817232511.11391-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_sw_fence.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_sw_fence.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_sw_fence.h b/drivers/gpu/drm/i915/i915_sw_fence.h index 9cb5c3b307a6..518cbaad9bea 100644 --- a/drivers/gpu/drm/i915/i915_sw_fence.h +++ b/drivers/gpu/drm/i915/i915_sw_fence.h @@ -22,6 +22,7 @@ struct i915_sw_fence { wait_queue_head_t wait; unsigned long flags; atomic_t pending; + int error; }; #define I915_SW_FENCE_CHECKED_BIT 0 /* used internally for DAG checking */ @@ -106,4 +107,10 @@ static inline void i915_sw_fence_wait(struct i915_sw_fence *fence) wait_event(fence->wait, i915_sw_fence_done(fence)); } +static inline void +i915_sw_fence_set_error_once(struct i915_sw_fence *fence, int error) +{ + cmpxchg(&fence->error, 0, error); +} + #endif /* _I915_SW_FENCE_H_ */ |