diff options
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem.c | 71 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_tiling.c | 4 |
3 files changed, 41 insertions, 38 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 6042921fdf3f..ce7914c4c044 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1195,7 +1195,9 @@ void i915_gem_free_all_phys_object(struct drm_device *dev); void i915_gem_release(struct drm_device *dev, struct drm_file *file); uint32_t -i915_gem_get_unfenced_gtt_alignment(struct drm_i915_gem_object *obj); +i915_gem_get_unfenced_gtt_alignment(struct drm_device *dev, + uint32_t size, + int tiling_mode); /* i915_gem_gtt.c */ void i915_gem_restore_gtt_mappings(struct drm_device *dev); diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 5c0d1247f453..a087e1bf0c2f 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -1374,25 +1374,24 @@ i915_gem_free_mmap_offset(struct drm_i915_gem_object *obj) } static uint32_t -i915_gem_get_gtt_size(struct drm_i915_gem_object *obj) +i915_gem_get_gtt_size(struct drm_device *dev, uint32_t size, int tiling_mode) { - struct drm_device *dev = obj->base.dev; - uint32_t size; + uint32_t gtt_size; if (INTEL_INFO(dev)->gen >= 4 || - obj->tiling_mode == I915_TILING_NONE) - return obj->base.size; + tiling_mode == I915_TILING_NONE) + return size; /* Previous chips need a power-of-two fence region when tiling */ if (INTEL_INFO(dev)->gen == 3) - size = 1024*1024; + gtt_size = 1024*1024; else - size = 512*1024; + gtt_size = 512*1024; - while (size < obj->base.size) - size <<= 1; + while (gtt_size < size) + gtt_size <<= 1; - return size; + return gtt_size; } /** @@ -1403,59 +1402,52 @@ i915_gem_get_gtt_size(struct drm_i915_gem_object *obj) * potential fence register mapping. */ static uint32_t -i915_gem_get_gtt_alignment(struct drm_i915_gem_object *obj) +i915_gem_get_gtt_alignment(struct drm_device *dev, + uint32_t size, + int tiling_mode) { - struct drm_device *dev = obj->base.dev; - /* * Minimum alignment is 4k (GTT page size), but might be greater * if a fence register is needed for the object. */ if (INTEL_INFO(dev)->gen >= 4 || - obj->tiling_mode == I915_TILING_NONE) + tiling_mode == I915_TILING_NONE) return 4096; /* * Previous chips need to be aligned to the size of the smallest * fence register that can contain the object. */ - return i915_gem_get_gtt_size(obj); + return i915_gem_get_gtt_size(dev, size, tiling_mode); } /** * i915_gem_get_unfenced_gtt_alignment - return required GTT alignment for an * unfenced object - * @obj: object to check + * @dev: the device + * @size: size of the object + * @tiling_mode: tiling mode of the object * * Return the required GTT alignment for an object, only taking into account * unfenced tiled surface requirements. */ uint32_t -i915_gem_get_unfenced_gtt_alignment(struct drm_i915_gem_object *obj) +i915_gem_get_unfenced_gtt_alignment(struct drm_device *dev, + uint32_t size, + int tiling_mode) { - struct drm_device *dev = obj->base.dev; - int tile_height; - /* * Minimum alignment is 4k (GTT page size) for sane hw. */ if (INTEL_INFO(dev)->gen >= 4 || IS_G33(dev) || - obj->tiling_mode == I915_TILING_NONE) + tiling_mode == I915_TILING_NONE) return 4096; - /* - * Older chips need unfenced tiled buffers to be aligned to the left - * edge of an even tile row (where tile rows are counted as if the bo is - * placed in a fenced gtt region). + /* Previous hardware however needs to be aligned to a power-of-two + * tile height. The simplest method for determining this is to reuse + * the power-of-tile object size. */ - if (IS_GEN2(dev)) - tile_height = 16; - else if (obj->tiling_mode == I915_TILING_Y && HAS_128_BYTE_Y_TILING(dev)) - tile_height = 32; - else - tile_height = 8; - - return tile_height * obj->stride * 2; + return i915_gem_get_gtt_size(dev, size, tiling_mode); } int @@ -2744,9 +2736,16 @@ i915_gem_object_bind_to_gtt(struct drm_i915_gem_object *obj, return -EINVAL; } - fence_size = i915_gem_get_gtt_size(obj); - fence_alignment = i915_gem_get_gtt_alignment(obj); - unfenced_alignment = i915_gem_get_unfenced_gtt_alignment(obj); + fence_size = i915_gem_get_gtt_size(dev, + obj->base.size, + obj->tiling_mode); + fence_alignment = i915_gem_get_gtt_alignment(dev, + obj->base.size, + obj->tiling_mode); + unfenced_alignment = + i915_gem_get_unfenced_gtt_alignment(dev, + obj->base.size, + obj->tiling_mode); if (alignment == 0) alignment = map_and_fenceable ? fence_alignment : diff --git a/drivers/gpu/drm/i915/i915_gem_tiling.c b/drivers/gpu/drm/i915/i915_gem_tiling.c index 82d70fd9e933..99c4faa59d8f 100644 --- a/drivers/gpu/drm/i915/i915_gem_tiling.c +++ b/drivers/gpu/drm/i915/i915_gem_tiling.c @@ -348,7 +348,9 @@ i915_gem_set_tiling(struct drm_device *dev, void *data, /* Rebind if we need a change of alignment */ if (!obj->map_and_fenceable) { u32 unfenced_alignment = - i915_gem_get_unfenced_gtt_alignment(obj); + i915_gem_get_unfenced_gtt_alignment(dev, + obj->base.size, + args->tiling_mode); if (obj->gtt_offset & (unfenced_alignment - 1)) ret = i915_gem_object_unbind(obj); } |