summaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/i915/i915_dma.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gpu/drm/i915/i915_dma.c')
-rw-r--r--drivers/gpu/drm/i915/i915_dma.c25
1 files changed, 13 insertions, 12 deletions
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 051134c56aef..0ccb63ee50ee 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -987,12 +987,6 @@ static int i915_load_modeset_init(struct drm_device *dev)
int fb_bar = IS_I9XX(dev) ? 2 : 0;
int ret = 0;
- dev->devname = kstrdup(DRIVER_NAME, GFP_KERNEL);
- if (!dev->devname) {
- ret = -ENOMEM;
- goto out;
- }
-
dev->mode_config.fb_base = drm_get_resource_start(dev, fb_bar) &
0xff000000;
@@ -1006,17 +1000,25 @@ static int i915_load_modeset_init(struct drm_device *dev)
ret = i915_probe_agp(dev, &agp_size, &prealloc_size);
if (ret)
- goto kfree_devname;
+ goto out;
/* Basic memrange allocator for stolen space (aka vram) */
drm_mm_init(&dev_priv->vram, 0, prealloc_size);
- /* Let GEM Manage from end of prealloc space to end of aperture */
- i915_gem_do_init(dev, prealloc_size, agp_size);
+ /* Let GEM Manage from end of prealloc space to end of aperture.
+ *
+ * However, leave one page at the end still bound to the scratch page.
+ * There are a number of places where the hardware apparently
+ * prefetches past the end of the object, and we've seen multiple
+ * hangs with the GPU head pointer stuck in a batchbuffer bound
+ * at the last page of the aperture. One page should be enough to
+ * keep any prefetching inside of the aperture.
+ */
+ i915_gem_do_init(dev, prealloc_size, agp_size - 4096);
ret = i915_gem_init_ringbuffer(dev);
if (ret)
- goto kfree_devname;
+ goto out;
/* Allow hardware batchbuffers unless told otherwise.
*/
@@ -1048,8 +1050,6 @@ static int i915_load_modeset_init(struct drm_device *dev)
destroy_ringbuffer:
i915_gem_cleanup_ringbuffer(dev);
-kfree_devname:
- kfree(dev->devname);
out:
return ret;
}
@@ -1350,6 +1350,7 @@ struct drm_ioctl_desc i915_ioctls[] = {
DRM_IOCTL_DEF(DRM_I915_GEM_SET_TILING, i915_gem_set_tiling, 0),
DRM_IOCTL_DEF(DRM_I915_GEM_GET_TILING, i915_gem_get_tiling, 0),
DRM_IOCTL_DEF(DRM_I915_GEM_GET_APERTURE, i915_gem_get_aperture_ioctl, 0),
+ DRM_IOCTL_DEF(DRM_I915_GET_PIPE_FROM_CRTC_ID, intel_get_pipe_from_crtc_id, 0),
};
int i915_max_ioctl = DRM_ARRAY_SIZE(i915_ioctls);
OpenPOWER on IntegriCloud