drm/i915: Propagate error from i915_gem_object_flush_gpu_write_domain()
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Eric Anholt <eric@anholt.net>
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index f5636d8..f8f315d 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -982,7 +982,7 @@
int i915_gem_object_get_pages(struct drm_gem_object *obj, gfp_t gfpmask);
void i915_gem_object_put_pages(struct drm_gem_object *obj);
void i915_gem_release(struct drm_device * dev, struct drm_file *file_priv);
-void i915_gem_object_flush_write_domain(struct drm_gem_object *obj);
+int i915_gem_object_flush_write_domain(struct drm_gem_object *obj);
void i915_gem_shrinker_init(void);
void i915_gem_shrinker_exit(void);
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 0bf4bcd..b1069dc 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -35,7 +35,7 @@
#include <linux/swap.h>
#include <linux/pci.h>
-static void i915_gem_object_flush_gpu_write_domain(struct drm_gem_object *obj);
+static int i915_gem_object_flush_gpu_write_domain(struct drm_gem_object *obj);
static void i915_gem_object_flush_gtt_write_domain(struct drm_gem_object *obj);
static void i915_gem_object_flush_cpu_write_domain(struct drm_gem_object *obj);
static int i915_gem_object_set_to_cpu_domain(struct drm_gem_object *obj,
@@ -2583,7 +2583,10 @@
if (!IS_I965G(dev)) {
int ret;
- i915_gem_object_flush_gpu_write_domain(obj);
+ ret = i915_gem_object_flush_gpu_write_domain(obj);
+ if (ret != 0)
+ return ret;
+
ret = i915_gem_object_wait_rendering(obj);
if (ret != 0)
return ret;
@@ -2731,7 +2734,7 @@
}
/** Flushes any GPU write domain for the object if it's dirty. */
-static void
+static int
i915_gem_object_flush_gpu_write_domain(struct drm_gem_object *obj)
{
struct drm_device *dev = obj->dev;
@@ -2739,17 +2742,18 @@
struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
if ((obj->write_domain & I915_GEM_GPU_DOMAINS) == 0)
- return;
+ return 0;
/* Queue the GPU write cache flushing we need. */
old_write_domain = obj->write_domain;
i915_gem_flush(dev, 0, obj->write_domain);
- (void) i915_add_request(dev, NULL, obj->write_domain, obj_priv->ring);
- BUG_ON(obj->write_domain);
+ if (i915_add_request(dev, NULL, obj->write_domain, obj_priv->ring) == 0)
+ return -ENOMEM;
trace_i915_gem_object_change_domain(obj,
obj->read_domains,
old_write_domain);
+ return 0;
}
/** Flushes the GTT write domain for the object if it's dirty. */
@@ -2793,9 +2797,11 @@
old_write_domain);
}
-void
+int
i915_gem_object_flush_write_domain(struct drm_gem_object *obj)
{
+ int ret = 0;
+
switch (obj->write_domain) {
case I915_GEM_DOMAIN_GTT:
i915_gem_object_flush_gtt_write_domain(obj);
@@ -2804,9 +2810,11 @@
i915_gem_object_flush_cpu_write_domain(obj);
break;
default:
- i915_gem_object_flush_gpu_write_domain(obj);
+ ret = i915_gem_object_flush_gpu_write_domain(obj);
break;
}
+
+ return ret;
}
/**
@@ -2826,7 +2834,10 @@
if (obj_priv->gtt_space == NULL)
return -EINVAL;
- i915_gem_object_flush_gpu_write_domain(obj);
+ ret = i915_gem_object_flush_gpu_write_domain(obj);
+ if (ret != 0)
+ return ret;
+
/* Wait on any GPU rendering and flushing to occur. */
ret = i915_gem_object_wait_rendering(obj);
if (ret != 0)
@@ -2876,7 +2887,9 @@
if (obj_priv->gtt_space == NULL)
return -EINVAL;
- i915_gem_object_flush_gpu_write_domain(obj);
+ ret = i915_gem_object_flush_gpu_write_domain(obj);
+ if (ret)
+ return ret;
/* Wait on any GPU rendering and flushing to occur. */
if (obj_priv->active) {
@@ -2924,7 +2937,10 @@
uint32_t old_write_domain, old_read_domains;
int ret;
- i915_gem_object_flush_gpu_write_domain(obj);
+ ret = i915_gem_object_flush_gpu_write_domain(obj);
+ if (ret)
+ return ret;
+
/* Wait on any GPU rendering and flushing to occur. */
ret = i915_gem_object_wait_rendering(obj);
if (ret != 0)
@@ -3214,7 +3230,10 @@
if (offset == 0 && size == obj->size)
return i915_gem_object_set_to_cpu_domain(obj, 0);
- i915_gem_object_flush_gpu_write_domain(obj);
+ ret = i915_gem_object_flush_gpu_write_domain(obj);
+ if (ret)
+ return ret;
+
/* Wait on any GPU rendering and flushing to occur. */
ret = i915_gem_object_wait_rendering(obj);
if (ret != 0)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index bf486b1..81179fb 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -4905,7 +4905,9 @@
drm_gem_object_reference(obj);
crtc->fb = fb;
- i915_gem_object_flush_write_domain(obj);
+ ret = i915_gem_object_flush_write_domain(obj);
+ if (ret)
+ goto cleanup_objs;
ret = drm_vblank_get(dev, intel_crtc->pipe);
if (ret)