diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_tiling.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 7 |
3 files changed, 7 insertions, 5 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index e2bf930c2e91..759de9f123fd 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1597,6 +1597,9 @@ struct drm_i915_gem_object { /** Current tiling stride for the object, if it's tiled. */ uint32_t stride; + /** References from framebuffers, locks out tiling changes. */ + unsigned long framebuffer_references; + /** Record of address bit 17 of each page at last unbind. */ unsigned long *bit_17; diff --git a/drivers/gpu/drm/i915/i915_gem_tiling.c b/drivers/gpu/drm/i915/i915_gem_tiling.c index ac9ebe98f8b0..b13905348048 100644 --- a/drivers/gpu/drm/i915/i915_gem_tiling.c +++ b/drivers/gpu/drm/i915/i915_gem_tiling.c @@ -308,7 +308,7 @@ i915_gem_set_tiling(struct drm_device *dev, void *data, return -EINVAL; } - if (obj->pin_count) { + if (obj->pin_count || obj->framebuffer_references) { drm_gem_object_unreference_unlocked(&obj->base); return -EBUSY; } diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 88e560070bec..97ee553a81e5 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -1921,10 +1921,7 @@ intel_pin_and_fence_fb_obj(struct drm_device *dev, alignment = 0; break; case I915_TILING_Y: - /* Despite that we check this in framebuffer_init userspace can - * screw us over and change the tiling after the fact. Only - * pinned buffers can't change their tiling. */ - DRM_DEBUG_DRIVER("Y tiled not allowed for scan out buffers\n"); + WARN(1, "Y tiled bo slipped through, driver bug!\n"); return -EINVAL; default: BUG(); @@ -9962,6 +9959,7 @@ static void intel_setup_outputs(struct drm_device *dev) void intel_framebuffer_fini(struct intel_framebuffer *fb) { drm_framebuffer_cleanup(&fb->base); + WARN_ON(!fb->obj->framebuffer_references--); drm_gem_object_unreference_unlocked(&fb->obj->base); } @@ -10088,6 +10086,7 @@ int intel_framebuffer_init(struct drm_device *dev, drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd); intel_fb->obj = obj; + intel_fb->obj->framebuffer_references++; ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs); if (ret) { |