diff options
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index bcef1c1e83f..b6f593a6d97 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -6713,13 +6713,14 @@ intel_alloc_context_page(struct drm_device *dev) struct drm_i915_gem_object *ctx; int ret; + WARN_ON(!mutex_is_locked(&dev->struct_mutex)); + ctx = i915_gem_alloc_object(dev, 4096); if (!ctx) { DRM_DEBUG("failed to alloc power context, RC6 disabled\n"); return NULL; } - mutex_lock(&dev->struct_mutex); ret = i915_gem_object_pin(ctx, 4096, true); if (ret) { DRM_ERROR("failed to pin power context: %d\n", ret); @@ -6731,7 +6732,6 @@ intel_alloc_context_page(struct drm_device *dev) DRM_ERROR("failed to set-domain on power context: %d\n", ret); goto err_unpin; } - mutex_unlock(&dev->struct_mutex); return ctx; @@ -7295,9 +7295,12 @@ void ironlake_enable_rc6(struct drm_device *dev) if (!i915_enable_rc6) return; + mutex_lock(&dev->struct_mutex); ret = ironlake_setup_rc6(dev); - if (ret) + if (ret) { + mutex_unlock(&dev->struct_mutex); return; + } /* * GPU can automatically power down the render unit if given a page @@ -7306,6 +7309,7 @@ void ironlake_enable_rc6(struct drm_device *dev) ret = BEGIN_LP_RING(6); if (ret) { ironlake_teardown_rc6(dev); + mutex_unlock(&dev->struct_mutex); return; } @@ -7323,6 +7327,7 @@ void ironlake_enable_rc6(struct drm_device *dev) I915_WRITE(PWRCTXA, dev_priv->pwrctx->gtt_offset | PWRCTX_EN); I915_WRITE(RSTDBYCTL, I915_READ(RSTDBYCTL) & ~RCX_SW_EXIT); + mutex_unlock(&dev->struct_mutex); } |