Commit 84fe03f7 authored by Tvrtko Ursulin's avatar Tvrtko Ursulin Committed by Daniel Vetter
Browse files

drm/i915: Move rotated geometry calculations into the fill helper 



This way data is available as soon as the view is passed into the call chain.

v2: Store size in bytes instead of pages under the appropriate name. (Chris Wilson)

v3: Use uint64_t instead of size_t. (Daniel Vetter)

Signed-off-by: default avatarTvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> (v2)
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent c9f8fd2d

drivers/gpu/drm/i915/i915_gem_gtt.c

+13 −23
Original line number Diff line number Diff line
@@ -2700,29 +2700,17 @@ static struct sg_table * 
intel_rotate_fb_obj_pages(struct i915_ggtt_view *ggtt_view,

			  struct drm_i915_gem_object *obj)

{

	struct drm_device *dev = obj->base.dev;

	struct intel_rotation_info *rot_info = &ggtt_view->rotation_info;

	unsigned long pages, rot_pages;

	unsigned int size_pages = rot_info->size >> PAGE_SHIFT;

	struct sg_page_iter sg_iter;

	unsigned long i;

	dma_addr_t *page_addr_list;

	struct sg_table *st;

	unsigned int tile_pitch, tile_height;

	unsigned int width_pages, height_pages;

	int ret = -ENOMEM;



	pages = obj->base.size / PAGE_SIZE;



	/* Calculate tiling geometry. */

	tile_height = intel_tile_height(dev, rot_info->pixel_format,

					rot_info->fb_modifier);

	tile_pitch = PAGE_SIZE / tile_height;

	width_pages = DIV_ROUND_UP(rot_info->pitch, tile_pitch);

	height_pages = DIV_ROUND_UP(rot_info->height, tile_height);

	rot_pages = width_pages * height_pages;



	/* Allocate a temporary list of source pages for random access. */

	page_addr_list = drm_malloc_ab(pages, sizeof(dma_addr_t));

	page_addr_list = drm_malloc_ab(obj->base.size / PAGE_SIZE,

				       sizeof(dma_addr_t));

	if (!page_addr_list)

		return ERR_PTR(ret);
@@ -2731,7 +2719,7 @@ intel_rotate_fb_obj_pages(struct i915_ggtt_view *ggtt_view, 
	if (!st)

		goto err_st_alloc;



	ret = sg_alloc_table(st, rot_pages, GFP_KERNEL);

	ret = sg_alloc_table(st, size_pages, GFP_KERNEL);

	if (ret)

		goto err_sg_alloc;
@@ -2743,13 +2731,15 @@ intel_rotate_fb_obj_pages(struct i915_ggtt_view *ggtt_view, 
	}



	/* Rotate the pages. */

	rotate_pages(page_addr_list, width_pages, height_pages, st);

	rotate_pages(page_addr_list,

		     rot_info->width_pages, rot_info->height_pages,

		     st);



	DRM_DEBUG_KMS(

		      "Created rotated page mapping for object size %zu (pitch=%u, height=%u, pixel_format=0x%x, %ux%u tiles, %lu pages).\n",

		      "Created rotated page mapping for object size %zu (pitch=%u, height=%u, pixel_format=0x%x, %ux%u tiles, %u pages).\n",

		      obj->base.size, rot_info->pitch, rot_info->height,

		      rot_info->pixel_format, width_pages, height_pages,

		      rot_pages);

		      rot_info->pixel_format, rot_info->width_pages,

		      rot_info->height_pages, size_pages);



	drm_free_large(page_addr_list);
@@ -2761,10 +2751,10 @@ err_st_alloc: 
	drm_free_large(page_addr_list);



	DRM_DEBUG_KMS(

		      "Failed to create rotated mapping for object size %zu! (%d) (pitch=%u, height=%u, pixel_format=0x%x, %ux%u tiles, %lu pages)\n",

		      "Failed to create rotated mapping for object size %zu! (%d) (pitch=%u, height=%u, pixel_format=0x%x, %ux%u tiles, %u pages)\n",

		      obj->base.size, ret, rot_info->pitch, rot_info->height,

		      rot_info->pixel_format, width_pages, height_pages,

		      rot_pages);

		      rot_info->pixel_format, rot_info->width_pages,

		      rot_info->height_pages, size_pages);

	return ERR_PTR(ret);

}

drivers/gpu/drm/i915/i915_gem_gtt.h

+2 −0
Original line number Diff line number Diff line
@@ -126,6 +126,8 @@ struct intel_rotation_info { 
	unsigned int pitch;

	uint32_t pixel_format;

	uint64_t fb_modifier;

	unsigned int width_pages, height_pages;

	uint64_t size;

};



struct i915_ggtt_view {

drivers/gpu/drm/i915/intel_display.c

+8 −0
Original line number Diff line number Diff line
@@ -2268,6 +2268,7 @@ intel_fill_fb_ggtt_view(struct i915_ggtt_view *view, struct drm_framebuffer *fb, 
			const struct drm_plane_state *plane_state)

{

	struct intel_rotation_info *info = &view->rotation_info;

	unsigned int tile_height, tile_pitch;



	*view = i915_ggtt_view_normal;
@@ -2284,6 +2285,13 @@ intel_fill_fb_ggtt_view(struct i915_ggtt_view *view, struct drm_framebuffer *fb, 
	info->pitch = fb->pitches[0];

	info->fb_modifier = fb->modifier[0];



	tile_height = intel_tile_height(fb->dev, fb->pixel_format,

					fb->modifier[0]);

	tile_pitch = PAGE_SIZE / tile_height;

	info->width_pages = DIV_ROUND_UP(fb->pitches[0], tile_pitch);

	info->height_pages = DIV_ROUND_UP(fb->height, tile_height);

	info->size = info->width_pages * info->height_pages * PAGE_SIZE;



	return 0;

}

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