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authorMark Brown <broonie@kernel.org>2019-01-29 12:04:54 +0000
committerMark Brown <broonie@kernel.org>2019-01-29 12:04:54 +0000
commitd7c26e63cf78fef01d66ae848184c6ee5f4b8bbf (patch)
tree3765745a38a7ae1a4a3a056dfc6c736e4c99271d /drivers/gpu/drm/i915/i915_gpu_error.c
parenta8233b6c1972e1959cf84a021aeb61ddcd23cc26 (diff)
parentf17b5f06cb92ef2250513a1e154c47b78df07d40 (diff)
Merge tag 'v5.0-rc4' into asoc-5.1
Linux 5.0-rc4
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gpu_error.c')
-rw-r--r--drivers/gpu/drm/i915/i915_gpu_error.c23
1 files changed, 14 insertions, 9 deletions
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index 07465123c166..3f9ce403c755 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -1907,9 +1907,16 @@ i915_capture_gpu_state(struct drm_i915_private *i915)
{
struct i915_gpu_state *error;
+ /* Check if GPU capture has been disabled */
+ error = READ_ONCE(i915->gpu_error.first_error);
+ if (IS_ERR(error))
+ return error;
+
error = kzalloc(sizeof(*error), GFP_ATOMIC);
- if (!error)
- return NULL;
+ if (!error) {
+ i915_disable_error_state(i915, -ENOMEM);
+ return ERR_PTR(-ENOMEM);
+ }
kref_init(&error->ref);
error->i915 = i915;
@@ -1945,11 +1952,8 @@ void i915_capture_error_state(struct drm_i915_private *i915,
return;
error = i915_capture_gpu_state(i915);
- if (!error) {
- DRM_DEBUG_DRIVER("out of memory, not capturing error state\n");
- i915_disable_error_state(i915, -ENOMEM);
+ if (IS_ERR(error))
return;
- }
i915_error_capture_msg(i915, error, engine_mask, error_msg);
DRM_INFO("%s\n", error->error_msg);
@@ -1987,7 +1991,7 @@ i915_first_error_state(struct drm_i915_private *i915)
spin_lock_irq(&i915->gpu_error.lock);
error = i915->gpu_error.first_error;
- if (error)
+ if (!IS_ERR_OR_NULL(error))
i915_gpu_state_get(error);
spin_unlock_irq(&i915->gpu_error.lock);
@@ -2000,10 +2004,11 @@ void i915_reset_error_state(struct drm_i915_private *i915)
spin_lock_irq(&i915->gpu_error.lock);
error = i915->gpu_error.first_error;
- i915->gpu_error.first_error = NULL;
+ if (error != ERR_PTR(-ENODEV)) /* if disabled, always disabled */
+ i915->gpu_error.first_error = NULL;
spin_unlock_irq(&i915->gpu_error.lock);
- if (!IS_ERR(error))
+ if (!IS_ERR_OR_NULL(error))
i915_gpu_state_put(error);
}