[Intel-gfx] [PATCH v2 21/22] drm/i915: Rewrite fb rotation GTT handling

Daniel Vetter daniel at ffwll.ch
Wed Oct 21 05:01:01 PDT 2015


On Thu, Oct 15, 2015 at 08:59:45PM +0300, ville.syrjala at linux.intel.com wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> Redo the fb rotation handling in order to:
> - eliminate the NV12 special casing
> - handle fb->offsets[] properly
> - make the rotation handling reasier for the plane code

I think this is too big and should be split a bit. There's also a pile of
renames mixed int on top.

> To achieve these goals we reduce intel_rotation_info to only contain
> (for each plane) the rotated view width,height,stride in tile units,
> and the page offset into the object where the plane starts. Each plane
> is handled exactly the same way, no special casing for NV12 or other
> formats.

That sounds like a good prep patch to split out.

> We then store the computed rotation_info under
> intel_framebuffer so that we don't have to recompute it again.

And another one, plus then following up with the fallout.

This patch also fixes the intel_plane_obj_offset issue for earlier in the
series. Looks good otherwise from reading through it.

> To handle fb->offsets[] we treat them as a linear offsets and convert
> them to x/y offsets from the start of the relevant GTT mapping (either
> normal or rotated). We store the x/y offsets under intel_framebuffer,
> and for some extra convenience we also store the rotated pitch (ie.
> tile aligned plane height). So for each plane we have the normal
> x/y offsets, rotated x/y offsets, and the rotated pitch. The normal
> pitch is available already in fb->pitches[].
> 
> While we're gathering up all that extra information, we can also easily
> compute the storage requirements for the framebuffer, so that we can
> check that the object is big enough to hold it.
> 
> When it comes time to deal with the plane source coordinates, we first
> rotate the clipped src coordinates to match the relevant GTT view
> orientation, then add to them the fb x/y offsets. Next we compute
> the aligned surface page offset, and as a result we're left with some
> residual x/y offsets. Finally, if required by the hardware, we convert
> the remaining x/y offsets into a linear offset.
> 
> For gen2/3 we simply skip computing the final page offset, and just
> convert the src+fb x/y offsets directly into a linear offset since
> that's what the hardware wants.
> 
> After this all platforms, incluing SKL+, compute these things in exactly
> the same way (excluding alignemnt differences).
> 
> v2: Use BIT(DRM_ROTATE_270) instead of ROTATE_270 when rotating
>     plane src coordinates
>     Drop some spurious changes that got left behind during development
> 
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>

Two comments below inline.
-Daniel

> ---
>  drivers/gpu/drm/i915/i915_gem_gtt.c  |  66 ++----
>  drivers/gpu/drm/i915/i915_gem_gtt.h  |  14 +-
>  drivers/gpu/drm/i915/intel_display.c | 448 ++++++++++++++++++++++++-----------
>  drivers/gpu/drm/i915/intel_drv.h     |  32 ++-
>  drivers/gpu/drm/i915/intel_sprite.c  | 102 ++++----
>  5 files changed, 402 insertions(+), 260 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
> index bb95b86..98aee6c 100644
> --- a/drivers/gpu/drm/i915/i915_gem_gtt.c
> +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
> @@ -3255,11 +3255,6 @@ rotate_pages(const dma_addr_t *in, unsigned int offset,
>  	unsigned int column, row;
>  	unsigned int src_idx;
>  
> -	if (!sg) {
> -		st->nents = 0;
> -		sg = st->sgl;
> -	}
> -
>  	for (column = 0; column < width; column++) {
>  		src_idx = stride * (height - 1) + column;
>  		for (row = 0; row < height; row++) {
> @@ -3280,16 +3275,14 @@ rotate_pages(const dma_addr_t *in, unsigned int offset,
>  }
>  
>  static struct sg_table *
> -intel_rotate_fb_obj_pages(struct intel_rotation_info *rot_info,
> +intel_rotate_fb_obj_pages(const struct intel_rotation_info *info,
>  			  struct drm_i915_gem_object *obj)
>  {
> -	unsigned int size_pages = rot_info->size >> PAGE_SHIFT;
> -	unsigned int size_pages_uv;
> +	unsigned int size = intel_rotation_info_size(info);
>  	struct sg_page_iter sg_iter;
>  	unsigned long i;
>  	dma_addr_t *page_addr_list;
>  	struct sg_table *st;
> -	unsigned int uv_start_page;
>  	struct scatterlist *sg;
>  	int ret = -ENOMEM;
>  
> @@ -3299,57 +3292,32 @@ intel_rotate_fb_obj_pages(struct intel_rotation_info *rot_info,
>  	if (!page_addr_list)
>  		return ERR_PTR(ret);
>  
> -	/* Account for UV plane with NV12. */
> -	if (rot_info->pixel_format == DRM_FORMAT_NV12)
> -		size_pages_uv = rot_info->size_uv >> PAGE_SHIFT;
> -	else
> -		size_pages_uv = 0;
> -
>  	/* Allocate target SG list. */
>  	st = kmalloc(sizeof(*st), GFP_KERNEL);
>  	if (!st)
>  		goto err_st_alloc;
>  
> -	ret = sg_alloc_table(st, size_pages + size_pages_uv, GFP_KERNEL);
> +	ret = sg_alloc_table(st, size, GFP_KERNEL);
>  	if (ret)
>  		goto err_sg_alloc;
>  
>  	/* Populate source page list from the object. */
>  	i = 0;
>  	for_each_sg_page(obj->pages->sgl, &sg_iter, obj->pages->nents, 0) {
> -		page_addr_list[i] = sg_page_iter_dma_address(&sg_iter);
> -		i++;
> +		page_addr_list[i++] = sg_page_iter_dma_address(&sg_iter);
>  	}
>  
> -	/* Rotate the pages. */
> -	sg = rotate_pages(page_addr_list, 0,
> -		     rot_info->width_pages, rot_info->height_pages,
> -		     rot_info->width_pages,
> -		     st, NULL);
> +	st->nents = 0;
> +	sg = st->sgl;
>  
> -	/* Append the UV plane if NV12. */
> -	if (rot_info->pixel_format == DRM_FORMAT_NV12) {
> -		uv_start_page = size_pages;
> -
> -		/* Check for tile-row un-alignment. */
> -		if (offset_in_page(rot_info->uv_offset))
> -			uv_start_page--;
> -
> -		rot_info->uv_start_page = uv_start_page;
> -
> -		rotate_pages(page_addr_list, uv_start_page,
> -			     rot_info->width_pages_uv,
> -			     rot_info->height_pages_uv,
> -			     rot_info->width_pages_uv,
> -			     st, sg);
> +	for (i = 0 ; i < ARRAY_SIZE(info->plane); i++) {
> +		sg = rotate_pages(page_addr_list, info->plane[i].offset,
> +				  info->plane[i].width, info->plane[i].height,
> +				  info->plane[i].stride, st, sg);
>  	}
>  
> -	DRM_DEBUG_KMS(
> -		      "Created rotated page mapping for object size %zu (pitch=%u, height=%u, pixel_format=0x%x, %ux%u tiles, %u pages (%u plane 0)).\n",
> -		      obj->base.size, rot_info->pitch, rot_info->height,
> -		      rot_info->pixel_format, rot_info->width_pages,
> -		      rot_info->height_pages, size_pages + size_pages_uv,
> -		      size_pages);
> +	DRM_DEBUG_KMS("Created rotated page mapping for object size %zu (%ux%u tiles, %u pages)\n",
> +		      obj->base.size, info->plane[0].width, info->plane[0].height, size);
>  
>  	drm_free_large(page_addr_list);
>  
> @@ -3360,12 +3328,8 @@ err_sg_alloc:
>  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, %u pages (%u plane 0))\n",
> -		      obj->base.size, ret, rot_info->pitch, rot_info->height,
> -		      rot_info->pixel_format, rot_info->width_pages,
> -		      rot_info->height_pages, size_pages + size_pages_uv,
> -		      size_pages);
> +	DRM_DEBUG_KMS("Failed to create rotated mapping for object size %zu! (%ux%u tiles, %u pages)\n",
> +		      obj->base.size, info->plane[0].width, info->plane[0].height, size);
>  	return ERR_PTR(ret);
>  }
>  
> @@ -3516,7 +3480,7 @@ i915_ggtt_view_size(struct drm_i915_gem_object *obj,
>  	if (view->type == I915_GGTT_VIEW_NORMAL) {
>  		return obj->base.size;
>  	} else if (view->type == I915_GGTT_VIEW_ROTATED) {
> -		return view->rotated.size;
> +		return intel_rotation_info_size(&view->rotated) << PAGE_SHIFT;
>  	} else if (view->type == I915_GGTT_VIEW_PARTIAL) {
>  		return view->partial.size << PAGE_SHIFT;
>  	} else {
> diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h
> index 68de734..ea28f7d 100644
> --- a/drivers/gpu/drm/i915/i915_gem_gtt.h
> +++ b/drivers/gpu/drm/i915/i915_gem_gtt.h
> @@ -136,16 +136,10 @@ enum i915_ggtt_view_type {
>  };
>  
>  struct intel_rotation_info {
> -	unsigned int height;
> -	unsigned int pitch;
> -	unsigned int uv_offset;
> -	uint32_t pixel_format;
> -	uint64_t fb_modifier;
> -	unsigned int width_pages, height_pages;
> -	uint64_t size;
> -	unsigned int width_pages_uv, height_pages_uv;
> -	uint64_t size_uv;
> -	unsigned int uv_start_page;
> +	struct {
> +		/* tiles */
> +		unsigned int width, height, stride, offset;
> +	} plane[2];
>  };
>  
>  struct i915_ggtt_view {
> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> index 028dc4a..0dcb710 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -2274,49 +2274,28 @@ intel_fb_align_height(struct drm_device *dev, unsigned int height,
>  	return ALIGN(height, tile_height);
>  }
>  
> -static int
> +unsigned int intel_rotation_info_size(const struct intel_rotation_info *info)
> +{
> +	unsigned int size = 0;
> +	int i;
> +
> +	for (i = 0 ; i < ARRAY_SIZE(info->plane); i++)
> +		size += info->plane[i].width * info->plane[i].height;
> +
> +	return size;
> +}
> +
> +static void
>  intel_fill_fb_ggtt_view(struct i915_ggtt_view *view,
>  			const struct drm_framebuffer *fb,
>  			unsigned int rotation)
>  {
> -	struct drm_i915_private *dev_priv = to_i915(fb->dev);
> -	struct intel_rotation_info *info = &view->rotated;
> -	unsigned int tile_size, tile_width, tile_height, cpp;
> -
> -	*view = i915_ggtt_view_normal;
> -
> -	if (!intel_rotation_90_or_270(rotation))
> -		return 0;
> -
> -	*view = i915_ggtt_view_rotated;
> -
> -	info->height = fb->height;
> -	info->pixel_format = fb->pixel_format;
> -	info->pitch = fb->pitches[0];
> -	info->uv_offset = fb->offsets[1];
> -	info->fb_modifier = fb->modifier[0];
> -
> -	tile_size = intel_tile_size(dev_priv);
> -
> -	cpp = drm_format_plane_cpp(fb->pixel_format, 0);
> -	tile_width = intel_tile_width(dev_priv, cpp, fb->modifier[0]);
> -	tile_height = tile_size / tile_width;
> -
> -	info->width_pages = DIV_ROUND_UP(fb->pitches[0], tile_width);
> -	info->height_pages = DIV_ROUND_UP(fb->height, tile_height);
> -	info->size = info->width_pages * info->height_pages * tile_size;
> -
> -	if (info->pixel_format == DRM_FORMAT_NV12) {
> -		cpp = drm_format_plane_cpp(fb->pixel_format, 1);
> -		tile_width = intel_tile_width(dev_priv, fb->modifier[1], cpp);
> -		tile_height = tile_size / tile_width;
> -
> -		info->width_pages_uv = DIV_ROUND_UP(fb->pitches[1], tile_width);
> -		info->height_pages_uv = DIV_ROUND_UP(fb->height / 2, tile_height);
> -		info->size_uv = info->width_pages_uv * info->height_pages_uv * tile_size;
> +	if (intel_rotation_90_or_270(rotation)) {
> +		*view = i915_ggtt_view_rotated;
> +		view->rotated = to_intel_framebuffer(fb)->info;
> +	} else {
> +		*view = i915_ggtt_view_normal;
>  	}
> -
> -	return 0;
>  }
>  
>  static unsigned int intel_linear_alignment(const struct drm_i915_private *dev_priv)
> @@ -2368,9 +2347,7 @@ intel_pin_and_fence_fb_obj(struct drm_framebuffer *fb,
>  
>  	alignment = intel_surf_alignment(dev_priv, fb->modifier[0]);
>  
> -	ret = intel_fill_fb_ggtt_view(&view, fb, rotation);
> -	if (ret)
> -		return ret;
> +	intel_fill_fb_ggtt_view(&view, fb, rotation);
>  
>  	/* Note that the w/a also requires 64 PTE of padding following the
>  	 * bo. We currently fill all unused PTE with the shadow page and so
> @@ -2433,18 +2410,31 @@ static void intel_unpin_fb_obj(struct drm_framebuffer *fb, unsigned int rotation
>  {
>  	struct drm_i915_gem_object *obj = intel_fb_obj(fb);
>  	struct i915_ggtt_view view;
> -	int ret;
>  
>  	WARN_ON(!mutex_is_locked(&obj->base.dev->struct_mutex));
>  
> -	ret = intel_fill_fb_ggtt_view(&view, fb, rotation);
> -	WARN_ONCE(ret, "Couldn't get view from plane state!");
> +	intel_fill_fb_ggtt_view(&view, fb, rotation);
>  
>  	i915_gem_object_unpin_fence(obj);
>  	i915_gem_object_unpin_from_display_plane(obj, &view);
>  }
>  
>  /*
> + * Convert the x/y offsets into a linear offset.
> + * Only valid with 0/180 degree rotation, which is fine since linear
> + * offset is only used with linear buffers on pre-hsw and tiled buffers
> + * with gen2/3, and 90/270 degree rotations isn't supported on any of them.
> + */
> +unsigned int intel_fb_xy_to_linear(int x, int y,
> +				   const struct drm_framebuffer *fb, int plane)
> +{
> +	unsigned int cpp = drm_format_plane_cpp(fb->pixel_format, plane);
> +	unsigned int pitch = fb->pitches[plane];
> +
> +	return y * pitch + x * cpp;
> +}
> +
> +/*
>   * Return the tile dimensions in pixel units matching
>   * the specified rotation angle.
>   */
> @@ -2475,6 +2465,55 @@ static void intel_rotate_tile_dims(unsigned int *tile_width,
>  }
>  
>  /*
> + * Add the x/y offsets derived from fb->offsets[] to the user
> + * specified plane src x/y offsets. The resulting x/y offsets
> + * specify the start of scanout from the beginning of the gtt mapping.
> + */
> +void intel_add_fb_offsets(int *x, int *y,
> +			  const struct drm_framebuffer *fb, int plane,
> +			  unsigned int rotation)
> +
> +{
> +	const struct drm_i915_private *dev_priv = to_i915(fb->dev);
> +	const struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
> +	unsigned int cpp = drm_format_plane_cpp(fb->pixel_format, plane);
> +	unsigned int pitch;
> +
> +	if (intel_rotation_90_or_270(rotation)) {
> +		pitch = intel_fb->plane[plane].rotated.pitch;
> +
> +		*x += intel_fb->plane[plane].rotated.x;
> +		*y += intel_fb->plane[plane].rotated.y;
> +	} else {
> +		pitch = fb->pitches[plane];
> +
> +		*x += intel_fb->plane[plane].normal.x;
> +		*y += intel_fb->plane[plane].normal.y;
> +	}
> +
> +	/* minimize x */
> +	if (fb->modifier[plane] != DRM_FORMAT_MOD_NONE) {
> +		unsigned int tile_size, tile_width, tile_height;
> +
> +		tile_size = intel_tile_size(dev_priv);
> +		tile_width = intel_tile_width(dev_priv, fb->modifier[plane], cpp);
> +		tile_height = tile_size / tile_width;
> +
> +		intel_rotate_tile_dims(&tile_width, &tile_height,
> +				       &pitch, cpp, rotation);
> +
> +		*y += *x / pitch * tile_height;
> +		*x  = *x % pitch;
> +	} else {
> +		/* in pixels */
> +		pitch /= cpp;
> +
> +		*y += *x / pitch;
> +		*x  = *x % pitch;
> +	}

This is called before we do the entire page_offset dance, so I don't think
we need a special case for tiled vs. untiled.
-Daniel

> +}
> +
> +/*
>   * Adjust the page offset by moving the difference into
>   * the x/y offsets.
>   *
> @@ -2514,20 +2553,23 @@ static void intel_adjust_page_offset(int *x, int *y,
>   * In the 90/270 rotated case, x and y are assumed
>   * to be already rotated to match the rotated GTT view, and
>   * pitch is the tile_height aligned framebuffer height.
> + *
> + * This function is used when computing the derived information
> + * under intel_framebuffer, so using any of that information
> + * here is not allowed. Anything under drm_framebuffer can be
> + * used. This is why the user has to pass in the pitch since it
> + * is specified in the rotated orientation.
>   */
> -unsigned long intel_compute_page_offset(int *x, int *y,
> -					const struct drm_framebuffer *fb, int plane,
> -					unsigned int pitch,
> -					unsigned int rotation)
> +static unsigned int _intel_compute_page_offset(const struct drm_i915_private *dev_priv,
> +					       int *x, int *y,
> +					       const struct drm_framebuffer *fb, int plane,
> +					       unsigned int pitch,
> +					       unsigned int rotation,
> +					       unsigned int alignment)
>  {
> -	const struct drm_i915_private *dev_priv = to_i915(fb->dev);
>  	uint64_t fb_modifier = fb->modifier[plane];
>  	unsigned int cpp = drm_format_plane_cpp(fb->pixel_format, plane);
> -	unsigned int offset, alignment;
> -
> -	alignment = intel_surf_alignment(dev_priv, fb_modifier);
> -	if (alignment)
> -		alignment--;
> +	unsigned int offset;
>  
>  	if (fb_modifier != DRM_FORMAT_MOD_NONE) {
>  		unsigned int tile_size, tile_width, tile_height;
> @@ -2560,6 +2602,145 @@ unsigned long intel_compute_page_offset(int *x, int *y,
>  	return offset & ~alignment;
>  }
>  
> +unsigned int intel_compute_page_offset(int *x, int *y,
> +				       const struct drm_framebuffer *fb, int plane,
> +				       unsigned int pitch,
> +				       unsigned int rotation)
> +{
> +	const struct drm_i915_private *dev_priv = to_i915(fb->dev);
> +	unsigned int alignment = intel_surf_alignment(dev_priv, fb->modifier[plane]);
> +
> +	return _intel_compute_page_offset(dev_priv, x, y, fb, plane, pitch,
> +					  rotation, alignment ? (alignment - 1) : 0);
> +}
> +
> +/* Convert the fb->offset[] linear offset into x/y offsets */
> +static void intel_fb_offset_to_xy(int *x, int *y,
> +				  const struct drm_framebuffer *fb, int plane)
> +{
> +	unsigned int cpp = drm_format_plane_cpp(fb->pixel_format, plane);
> +	unsigned int pitch = fb->pitches[plane];
> +	unsigned int linear_offset = fb->offsets[plane];
> +
> +	*y = linear_offset / pitch;
> +	*x = linear_offset % pitch / cpp;
> +}
> +
> +static int
> +intel_fill_fb_info(struct drm_i915_private *dev_priv,
> +		   struct drm_framebuffer *fb)
> +{
> +	struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
> +	struct intel_rotation_info *info = &intel_fb->info;
> +	unsigned int tile_size;
> +	unsigned int gtt_offset_rotated = 0;
> +	unsigned int max_size = 0;
> +	uint32_t format = fb->pixel_format;
> +	int i, num_planes = drm_format_num_planes(format);
> +
> +	tile_size = intel_tile_size(dev_priv);
> +
> +	for (i = 0; i < num_planes; i++) {
> +		unsigned int width, height;
> +		unsigned int cpp, offset, size;
> +		int x, y;
> +
> +		cpp = drm_format_plane_cpp(format, i);
> +		width = drm_format_plane_width(fb->width, format, i);
> +		height = drm_format_plane_height(fb->height, format, i);
> +
> +		intel_fb_offset_to_xy(&x, &y, fb, i);
> +
> +		/*
> +		 * First pixel of the framebuffer from
> +		 * the start of the normal gtt mapping.
> +		 */
> +		intel_fb->plane[i].normal.x = x;
> +		intel_fb->plane[i].normal.y = y;
> +
> +		offset = _intel_compute_page_offset(dev_priv, &x, &y,
> +						    fb, 0, fb->pitches[i],
> +						    BIT(DRM_ROTATE_0),
> +						    tile_size);
> +		offset /= tile_size;
> +		DRM_DEBUG("page offset %u pages\n", offset);
> +
> +		if (fb->modifier[i] != DRM_FORMAT_MOD_NONE) {
> +			unsigned int tile_width, tile_height;
> +			unsigned int pitch;
> +			struct drm_rect r;
> +
> +			tile_width = intel_tile_width(dev_priv, fb->modifier[i], cpp);
> +			tile_height = tile_size / tile_width;
> +
> +			info->plane[i].offset = offset;
> +			info->plane[i].stride = DIV_ROUND_UP(fb->pitches[i], tile_width);
> +			info->plane[i].width = DIV_ROUND_UP((x + width) * cpp, tile_width);
> +			info->plane[i].height = DIV_ROUND_UP(y + height, tile_height);
> +
> +
> +			intel_fb->plane[i].rotated.pitch =
> +				info->plane[i].height * tile_height;
> +
> +			/* how many tiles does this plane need */
> +			size = info->plane[i].stride * info->plane[i].height;
> +			/*
> +			 * If the plane isn't horizontally tile aligned,
> +			 * we need one more tile.
> +			 */
> +			if (x != 0)
> +				size++;
> +
> +			pitch = intel_fb->plane[i].rotated.pitch;
> +
> +			/* rotate the x/y offsets to match the GTT view */
> +			r.x1 = x;
> +			r.y1 = y;
> +			r.x2 = x + width;
> +			r.y2 = y + height;
> +			drm_rect_rotate(&r, width, pitch, BIT(DRM_ROTATE_270));
> +			x = r.x1;
> +			y = r.y1;
> +
> +			intel_rotate_tile_dims(&tile_width, &tile_height, &pitch,
> +					       cpp, BIT(DRM_ROTATE_270));
> +
> +			/*
> +			 * We only keep the x/y offsets, so push all of the
> +			 * gtt offset into the x/y offsets.
> +			 */
> +			intel_adjust_page_offset(&x, &y, tile_width, tile_height,
> +						 tile_size, pitch,
> +						 gtt_offset_rotated * tile_size, 0);
> +
> +			gtt_offset_rotated += info->plane[i].width * info->plane[i].height;
> +
> +			/*
> +			 * First pixel of the framebuffer from
> +			 * the start of the rotated gtt mapping.
> +			 */
> +			intel_fb->plane[i].rotated.x = x;
> +			intel_fb->plane[i].rotated.y = y;
> +		} else {
> +			size = DIV_ROUND_UP((y + height) * fb->pitches[i] +
> +					    x * cpp, tile_size);
> +		}
> +		DRM_DEBUG("%d offset %u, size %u, stride %u, height %u\n",
> +			  i, offset, size, info->plane[i].stride, info->plane[i].height);
> +
> +		/* how many tiles in total needed in the bo */
> +		max_size = max(max_size, offset + size);
> +	}
> +
> +	if (max_size * tile_size > to_intel_framebuffer(fb)->obj->base.size) {
> +		DRM_DEBUG("fb too big for bo (need %u bytes, have %zu bytes)\n",
> +			  max_size * tile_size, to_intel_framebuffer(fb)->obj->base.size);
> +		return -EINVAL;
> +	}
> +
> +	return 0;
> +}
> +
>  static int i9xx_format_to_fourcc(int format)
>  {
>  	switch (format) {
> @@ -2761,7 +2942,7 @@ static void i9xx_update_primary_plane(struct drm_crtc *crtc,
>  	struct drm_i915_gem_object *obj;
>  	int plane = intel_crtc->plane;
>  	unsigned int rotation;
> -	unsigned long linear_offset;
> +	unsigned int linear_offset;
>  	u32 dspcntr;
>  	u32 reg = DSPCNTR(plane);
>  	int pixel_size;
> @@ -2839,30 +3020,25 @@ static void i9xx_update_primary_plane(struct drm_crtc *crtc,
>  	if (IS_G4X(dev))
>  		dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE;
>  
> -	linear_offset = y * fb->pitches[0] + x * pixel_size;
> +	intel_add_fb_offsets(&x, &y, fb, 0, rotation);
>  
> -	if (INTEL_INFO(dev)->gen >= 4) {
> +	if (INTEL_INFO(dev)->gen >= 4)
>  		intel_crtc->dspaddr_offset =
>  			intel_compute_page_offset(&x, &y, fb, 0,
>  						  fb->pitches[0], rotation);
> -		linear_offset -= intel_crtc->dspaddr_offset;
> -	} else {
> -		intel_crtc->dspaddr_offset = linear_offset;
> -	}
>  
>  	if (crtc->primary->state->rotation == BIT(DRM_ROTATE_180)) {
>  		dspcntr |= DISPPLANE_ROTATE_180;
>  
>  		x += (intel_crtc->config->pipe_src_w - 1);
>  		y += (intel_crtc->config->pipe_src_h - 1);
> -
> -		/* Finding the last pixel of the last line of the display
> -		data and adding to linear_offset*/
> -		linear_offset +=
> -			(intel_crtc->config->pipe_src_h - 1) * fb->pitches[0] +
> -			(intel_crtc->config->pipe_src_w - 1) * pixel_size;
>  	}
>  
> +	linear_offset = intel_fb_xy_to_linear(x, y, fb, 0);
> +
> +	if (INTEL_INFO(dev)->gen < 4)
> +		intel_crtc->dspaddr_offset = linear_offset;
> +
>  	intel_crtc->adjusted_x = x;
>  	intel_crtc->adjusted_y = y;
>  
> @@ -2871,7 +3047,8 @@ static void i9xx_update_primary_plane(struct drm_crtc *crtc,
>  	I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]);
>  	if (INTEL_INFO(dev)->gen >= 4) {
>  		I915_WRITE(DSPSURF(plane),
> -			   i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
> +			   intel_surf_gtt_offset(fb, 0, rotation) +
> +			   intel_crtc->dspaddr_offset);
>  		I915_WRITE(DSPTILEOFF(plane), (y << 16) | x);
>  		I915_WRITE(DSPLINOFF(plane), linear_offset);
>  	} else
> @@ -2891,7 +3068,7 @@ static void ironlake_update_primary_plane(struct drm_crtc *crtc,
>  	struct drm_i915_gem_object *obj;
>  	int plane = intel_crtc->plane;
>  	unsigned int rotation;
> -	unsigned long linear_offset;
> +	unsigned int linear_offset;
>  	u32 dspcntr;
>  	u32 reg = DSPCNTR(plane);
>  	int pixel_size;
> @@ -2946,26 +3123,22 @@ static void ironlake_update_primary_plane(struct drm_crtc *crtc,
>  	if (!IS_HASWELL(dev) && !IS_BROADWELL(dev))
>  		dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE;
>  
> -	linear_offset = y * fb->pitches[0] + x * pixel_size;
> +	intel_add_fb_offsets(&x, &y, fb, 0, rotation);
>  	intel_crtc->dspaddr_offset =
>  		intel_compute_page_offset(&x, &y, fb, 0,
>  					  fb->pitches[0], rotation);
> -	linear_offset -= intel_crtc->dspaddr_offset;
> +
>  	if (rotation == BIT(DRM_ROTATE_180)) {
>  		dspcntr |= DISPPLANE_ROTATE_180;
>  
>  		if (!IS_HASWELL(dev) && !IS_BROADWELL(dev)) {
>  			x += (intel_crtc->config->pipe_src_w - 1);
>  			y += (intel_crtc->config->pipe_src_h - 1);
> -
> -			/* Finding the last pixel of the last line of the display
> -			data and adding to linear_offset*/
> -			linear_offset +=
> -				(intel_crtc->config->pipe_src_h - 1) * fb->pitches[0] +
> -				(intel_crtc->config->pipe_src_w - 1) * pixel_size;
>  		}
>  	}
>  
> +	linear_offset = intel_fb_xy_to_linear(x, y, fb, 0);
> +
>  	intel_crtc->adjusted_x = x;
>  	intel_crtc->adjusted_y = y;
>  
> @@ -2973,7 +3146,8 @@ static void ironlake_update_primary_plane(struct drm_crtc *crtc,
>  
>  	I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]);
>  	I915_WRITE(DSPSURF(plane),
> -		   i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
> +		   intel_surf_gtt_offset(fb, 0, rotation) +
> +		   intel_crtc->dspaddr_offset);
>  	if (IS_HASWELL(dev) || IS_BROADWELL(dev)) {
>  		I915_WRITE(DSPOFFSET(plane), (y << 16) | x);
>  	} else {
> @@ -3000,30 +3174,15 @@ u32 intel_fb_stride_alignment(const struct drm_i915_private *dev_priv,
>  	}
>  }
>  
> -unsigned long intel_plane_obj_offset(struct intel_plane *intel_plane,
> -				     struct drm_i915_gem_object *obj,
> -				     unsigned int plane)
> +unsigned int intel_surf_gtt_offset(struct drm_framebuffer *fb, int plane,
> +				   unsigned int rotation)

If you want to frob the interface, then I'd replace the fb and rotation
with the plane state.

>  {
> -	const struct i915_ggtt_view *view = &i915_ggtt_view_normal;
> -	struct i915_vma *vma;
> -	unsigned char *offset;
> +	struct drm_i915_gem_object *obj = intel_fb_obj(fb);
> +	struct i915_ggtt_view view;
>  
> -	if (intel_rotation_90_or_270(intel_plane->base.state->rotation))
> -		view = &i915_ggtt_view_rotated;
> +	intel_fill_fb_ggtt_view(&view, fb, rotation);
>  
> -	vma = i915_gem_obj_to_ggtt_view(obj, view);
> -	if (WARN(!vma, "ggtt vma for display object not found! (view=%u)\n",
> -		view->type))
> -		return -1;
> -
> -	offset = (unsigned char *)vma->node.start;
> -
> -	if (plane == 1) {
> -		offset += vma->ggtt_view.rotated.uv_start_page *
> -			  PAGE_SIZE;
> -	}
> -
> -	return (unsigned long)offset;
> +	return i915_gem_obj_ggtt_offset_view(obj, &view);
>  }
>  
>  static void skl_detach_scaler(struct intel_crtc *intel_crtc, int id)
> @@ -3142,18 +3301,16 @@ static void skylake_update_primary_plane(struct drm_crtc *crtc,
>  	struct drm_i915_private *dev_priv = dev->dev_private;
>  	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
>  	struct drm_plane *plane = crtc->primary;
> +	struct intel_framebuffer *intel_fb;
>  	bool visible = to_intel_plane_state(plane->state)->visible;
> -	struct drm_i915_gem_object *obj;
>  	int pipe = intel_crtc->pipe;
>  	u32 plane_ctl, stride_div, stride;
> -	u32 tile_height, plane_offset, plane_size;
>  	unsigned int rotation;
> -	int x_offset, y_offset;
>  	unsigned long surf_addr;
>  	struct intel_crtc_state *crtc_state = intel_crtc->config;
>  	struct intel_plane_state *plane_state;
> -	int src_x = 0, src_y = 0, src_w = 0, src_h = 0;
> -	int dst_x = 0, dst_y = 0, dst_w = 0, dst_h = 0;
> +	int src_w, src_h;
> +	int dst_x, dst_y, dst_w, dst_h;
>  	int scaler_id = -1;
>  	int pixel_size;
>  
> @@ -3166,6 +3323,7 @@ static void skylake_update_primary_plane(struct drm_crtc *crtc,
>  		return;
>  	}
>  
> +	intel_fb = to_intel_framebuffer(fb);
>  	pixel_size = drm_format_plane_cpp(fb->pixel_format, 0);
>  
>  	plane_ctl = PLANE_CTL_ENABLE |
> @@ -3179,16 +3337,7 @@ static void skylake_update_primary_plane(struct drm_crtc *crtc,
>  	rotation = plane->state->rotation;
>  	plane_ctl |= skl_plane_ctl_rotation(rotation);
>  
> -	obj = intel_fb_obj(fb);
> -	stride_div = intel_fb_stride_alignment(dev_priv, fb->modifier[0],
> -					       fb->pixel_format);
> -	surf_addr = intel_plane_obj_offset(to_intel_plane(plane), obj, 0);
> -
> -	WARN_ON(drm_rect_width(&plane_state->src) == 0);
> -
>  	scaler_id = plane_state->scaler_id;
> -	src_x = plane_state->src.x1 >> 16;
> -	src_y = plane_state->src.y1 >> 16;
>  	src_w = drm_rect_width(&plane_state->src) >> 16;
>  	src_h = drm_rect_height(&plane_state->src) >> 16;
>  	dst_x = plane_state->dst.x1;
> @@ -3196,31 +3345,48 @@ static void skylake_update_primary_plane(struct drm_crtc *crtc,
>  	dst_w = drm_rect_width(&plane_state->dst);
>  	dst_h = drm_rect_height(&plane_state->dst);
>  
> -	WARN_ON(x != src_x || y != src_y);
> -
>  	if (intel_rotation_90_or_270(rotation)) {
> -		/* stride = Surface height in tiles */
> -		tile_height = intel_tile_height(dev_priv, fb->modifier[0],
> -						pixel_size);
> -		stride = DIV_ROUND_UP(fb->height, tile_height);
> -		x_offset = stride * tile_height - y - src_h;
> -		y_offset = x;
> -		plane_size = (src_w - 1) << 16 | (src_h - 1);
> +		struct drm_rect r = {
> +			.x1 = x,
> +			.x2 = x + src_w,
> +			.y1 = y,
> +			.y2 = y + src_h,
> +		};
> +
> +		/* Rotate src coordinates to match rotated GTT view */
> +		drm_rect_rotate(&r, fb->width, fb->height, BIT(DRM_ROTATE_270));
> +
> +		x = r.x1;
> +		y = r.y1;
> +		src_w = drm_rect_width(&r);
> +		src_h = drm_rect_height(&r);
> +
> +		stride_div = intel_tile_height(dev_priv, fb->modifier[0],
> +					       pixel_size);
> +		stride = intel_fb->plane[0].rotated.pitch;
>  	} else {
> -		stride = fb->pitches[0] / stride_div;
> -		x_offset = x;
> -		y_offset = y;
> -		plane_size = (src_h - 1) << 16 | (src_w - 1);
> +		stride_div = intel_fb_stride_alignment(dev_priv, fb->modifier[0],
> +						       fb->pixel_format);
> +		stride = fb->pitches[0];
>  	}
> -	plane_offset = y_offset << 16 | x_offset;
>  
> -	intel_crtc->adjusted_x = x_offset;
> -	intel_crtc->adjusted_y = y_offset;
> +	intel_add_fb_offsets(&x, &y, fb, 0, rotation);
> +	surf_addr = intel_compute_page_offset(&x, &y, fb, 0,
> +					      stride, rotation);
> +
> +	/* Sizes are 0 based */
> +	src_w--;
> +	src_h--;
> +	dst_w--;
> +	dst_h--;
> +
> +	intel_crtc->adjusted_x = x;
> +	intel_crtc->adjusted_y = y;
>  
>  	I915_WRITE(PLANE_CTL(pipe, 0), plane_ctl);
> -	I915_WRITE(PLANE_OFFSET(pipe, 0), plane_offset);
> -	I915_WRITE(PLANE_SIZE(pipe, 0), plane_size);
> -	I915_WRITE(PLANE_STRIDE(pipe, 0), stride);
> +	I915_WRITE(PLANE_OFFSET(pipe, 0), (y << 16) | x);
> +	I915_WRITE(PLANE_STRIDE(pipe, 0), stride / stride_div);
> +	I915_WRITE(PLANE_SIZE(pipe, 0), (src_h << 16) | src_w);
>  
>  	if (scaler_id >= 0) {
>  		uint32_t ps_ctrl = 0;
> @@ -3237,7 +3403,8 @@ static void skylake_update_primary_plane(struct drm_crtc *crtc,
>  		I915_WRITE(PLANE_POS(pipe, 0), (dst_y << 16) | dst_x);
>  	}
>  
> -	I915_WRITE(PLANE_SURF(pipe, 0), surf_addr);
> +	I915_WRITE(PLANE_SURF(pipe, 0),
> +		   intel_surf_gtt_offset(fb, 0, rotation) + surf_addr);
>  
>  	POSTING_READ(PLANE_SURF(pipe, 0));
>  }
> @@ -11521,8 +11688,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
>  	if (ret)
>  		goto cleanup_pending;
>  
> -	work->gtt_offset = intel_plane_obj_offset(to_intel_plane(primary),
> -						  obj, 0);
> +	work->gtt_offset = intel_surf_gtt_offset(fb, 0, primary->state->rotation);
>  	work->gtt_offset += intel_crtc->dspaddr_offset;
>  
>  	if (mmio_flip) {
> @@ -14319,7 +14485,6 @@ static int intel_framebuffer_init(struct drm_device *dev,
>  				  struct drm_i915_gem_object *obj)
>  {
>  	struct drm_i915_private *dev_priv = to_i915(dev);
> -	unsigned int aligned_height;
>  	int ret;
>  	u32 pitch_limit, stride_alignment;
>  
> @@ -14443,16 +14608,13 @@ static int intel_framebuffer_init(struct drm_device *dev,
>  	if (ret)
>  		return ret;
>  
> -	aligned_height = intel_fb_align_height(dev, mode_cmd->height,
> -					       mode_cmd->pixel_format,
> -					       mode_cmd->modifier[0]);
> -	/* FIXME drm helper for size checks (especially planar formats)? */
> -	if (obj->base.size < aligned_height * mode_cmd->pitches[0])
> -		return -EINVAL;
> -
>  	drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd);
>  	intel_fb->obj = obj;
>  
> +	ret = intel_fill_fb_info(dev_priv, &intel_fb->base);
> +	if (ret)
> +		return ret;
> +
>  	ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs);
>  	if (ret) {
>  		DRM_ERROR("framebuffer init failed %d\n", ret);
> diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
> index 36d049d..395afd3 100644
> --- a/drivers/gpu/drm/i915/intel_drv.h
> +++ b/drivers/gpu/drm/i915/intel_drv.h
> @@ -118,6 +118,19 @@ enum intel_output_type {
>  struct intel_framebuffer {
>  	struct drm_framebuffer base;
>  	struct drm_i915_gem_object *obj;
> +	struct intel_rotation_info info;
> +
> +	struct {
> +		struct {
> +			/* pixels */
> +			unsigned int x, y;
> +		} normal;
> +		struct {
> +			/* pixels */
> +			unsigned int x, y;
> +			unsigned int pitch;
> +		} rotated;
> +	} plane[2];
>  };
>  
>  struct intel_fbdev {
> @@ -1028,6 +1041,12 @@ void i915_audio_component_init(struct drm_i915_private *dev_priv);
>  void i915_audio_component_cleanup(struct drm_i915_private *dev_priv);
>  
>  /* intel_display.c */
> +unsigned int intel_rotation_info_size(const struct intel_rotation_info *info);
> +unsigned int intel_fb_xy_to_linear(int x, int y,
> +				   const struct drm_framebuffer *fb, int plane);
> +void intel_add_fb_offsets(int *x, int *y,
> +			  const struct drm_framebuffer *fb, int plane,
> +			  unsigned int rotation);
>  extern const struct drm_plane_funcs intel_plane_funcs;
>  bool intel_has_pending_fb_unpin(struct drm_device *dev);
>  int intel_pch_rawclk(struct drm_device *dev);
> @@ -1134,10 +1153,10 @@ void assert_fdi_rx_pll(struct drm_i915_private *dev_priv,
>  void assert_pipe(struct drm_i915_private *dev_priv, enum pipe pipe, bool state);
>  #define assert_pipe_enabled(d, p) assert_pipe(d, p, true)
>  #define assert_pipe_disabled(d, p) assert_pipe(d, p, false)
> -unsigned long intel_compute_page_offset(int *x, int *y,
> -					const struct drm_framebuffer *fb, int plane,
> -					unsigned int pitch,
> -					unsigned int rotation);
> +unsigned int intel_compute_page_offset(int *x, int *y,
> +				       const struct drm_framebuffer *fb, int plane,
> +				       unsigned int pitch,
> +				       unsigned int rotation);
>  void intel_prepare_reset(struct drm_device *dev);
>  void intel_finish_reset(struct drm_device *dev);
>  void hsw_enable_pc8(struct drm_i915_private *dev_priv);
> @@ -1174,9 +1193,8 @@ void intel_modeset_preclose(struct drm_device *dev, struct drm_file *file);
>  int skl_update_scaler_crtc(struct intel_crtc_state *crtc_state);
>  int skl_max_scale(struct intel_crtc *crtc, struct intel_crtc_state *crtc_state);
>  
> -unsigned long intel_plane_obj_offset(struct intel_plane *intel_plane,
> -				     struct drm_i915_gem_object *obj,
> -				     unsigned int plane);
> +unsigned int intel_surf_gtt_offset(struct drm_framebuffer *fb, int plane,
> +				   unsigned int rotation);
>  
>  u32 skl_plane_ctl_format(uint32_t pixel_format);
>  u32 skl_plane_ctl_tiling(uint64_t fb_modifier);
> diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
> index 828c3eb..d9d37b0 100644
> --- a/drivers/gpu/drm/i915/intel_sprite.c
> +++ b/drivers/gpu/drm/i915/intel_sprite.c
> @@ -188,17 +188,15 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
>  	struct drm_device *dev = drm_plane->dev;
>  	struct drm_i915_private *dev_priv = dev->dev_private;
>  	struct intel_plane *intel_plane = to_intel_plane(drm_plane);
> -	struct drm_i915_gem_object *obj = intel_fb_obj(fb);
> +	struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
>  	const int pipe = intel_plane->pipe;
>  	const int plane = intel_plane->plane + 1;
>  	u32 plane_ctl, stride_div, stride;
>  	int pixel_size = drm_format_plane_cpp(fb->pixel_format, 0);
>  	const struct drm_intel_sprite_colorkey *key =
>  		&to_intel_plane_state(drm_plane->state)->ckey;
> -	unsigned long surf_addr;
> -	u32 tile_height, plane_offset, plane_size;
> +	unsigned int surf_addr;
>  	unsigned int rotation;
> -	int x_offset, y_offset;
>  	struct intel_crtc_state *crtc_state = to_intel_crtc(crtc)->config;
>  	int scaler_id;
>  
> @@ -215,17 +213,8 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
>  				       pixel_size, true,
>  				       src_w != crtc_w || src_h != crtc_h);
>  
> -	stride_div = intel_fb_stride_alignment(dev_priv, fb->modifier[0],
> -					       fb->pixel_format);
> -
>  	scaler_id = to_intel_plane_state(drm_plane->state)->scaler_id;
>  
> -	/* Sizes are 0 based */
> -	src_w--;
> -	src_h--;
> -	crtc_w--;
> -	crtc_h--;
> -
>  	if (key->flags) {
>  		I915_WRITE(PLANE_KEYVAL(pipe, plane), key->min_value);
>  		I915_WRITE(PLANE_KEYMAX(pipe, plane), key->max_value);
> @@ -237,27 +226,43 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
>  	else if (key->flags & I915_SET_COLORKEY_SOURCE)
>  		plane_ctl |= PLANE_CTL_KEY_ENABLE_SOURCE;
>  
> -	surf_addr = intel_plane_obj_offset(intel_plane, obj, 0);
> -
>  	if (intel_rotation_90_or_270(rotation)) {
> -		/* stride: Surface height in tiles */
> -		tile_height = intel_tile_height(dev_priv, fb->modifier[0],
> -						pixel_size);
> -		stride = DIV_ROUND_UP(fb->height, tile_height);
> -		plane_size = (src_w << 16) | src_h;
> -		x_offset = stride * tile_height - y - (src_h + 1);
> -		y_offset = x;
> +		struct drm_rect r = {
> +			.x1 = x,
> +			.x2 = x + src_w,
> +			.y1 = y,
> +			.y2 = y + src_h,
> +		};
> +
> +		/* Rotate src coordinates to match rotated GTT view */
> +		drm_rect_rotate(&r, fb->width, fb->height, BIT(DRM_ROTATE_270));
> +
> +		x = r.x1;
> +		y = r.y1;
> +		src_w = drm_rect_width(&r);
> +		src_h = drm_rect_height(&r);
> +
> +		stride_div = intel_tile_height(dev_priv, fb->modifier[0], pixel_size);
> +		stride = intel_fb->plane[0].rotated.pitch;
>  	} else {
> -		stride = fb->pitches[0] / stride_div;
> -		plane_size = (src_h << 16) | src_w;
> -		x_offset = x;
> -		y_offset = y;
> +		stride_div = intel_fb_stride_alignment(dev_priv, fb->modifier[0],
> +						       fb->pixel_format);
> +		stride = fb->pitches[0];
>  	}
> -	plane_offset = y_offset << 16 | x_offset;
>  
> -	I915_WRITE(PLANE_OFFSET(pipe, plane), plane_offset);
> -	I915_WRITE(PLANE_STRIDE(pipe, plane), stride);
> -	I915_WRITE(PLANE_SIZE(pipe, plane), plane_size);
> +	intel_add_fb_offsets(&x, &y, fb, 0, rotation);
> +	surf_addr = intel_compute_page_offset(&x, &y, fb, 0,
> +					      stride, rotation);
> +
> +	/* Sizes are 0 based */
> +	src_w--;
> +	src_h--;
> +	crtc_w--;
> +	crtc_h--;
> +
> +	I915_WRITE(PLANE_OFFSET(pipe, plane), (y << 16) | x);
> +	I915_WRITE(PLANE_STRIDE(pipe, plane), stride / stride_div);
> +	I915_WRITE(PLANE_SIZE(pipe, plane), (src_h << 16) | src_w);
>  
>  	/* program plane scaler */
>  	if (scaler_id >= 0) {
> @@ -279,7 +284,8 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
>  	}
>  
>  	I915_WRITE(PLANE_CTL(pipe, plane), plane_ctl);
> -	I915_WRITE(PLANE_SURF(pipe, plane), surf_addr);
> +	I915_WRITE(PLANE_SURF(pipe, plane),
> +		   intel_surf_gtt_offset(fb, 0, rotation) + surf_addr);
>  	POSTING_READ(PLANE_SURF(pipe, plane));
>  }
>  
> @@ -355,8 +361,7 @@ vlv_update_plane(struct drm_plane *dplane, struct drm_crtc *crtc,
>  	int plane = intel_plane->plane;
>  	u32 sprctl;
>  	unsigned int rotation = dplane->state->rotation;
> -	unsigned long sprsurf_offset, linear_offset;
> -	int pixel_size = drm_format_plane_cpp(fb->pixel_format, 0);
> +	unsigned int sprsurf_offset, linear_offset;
>  	const struct drm_intel_sprite_colorkey *key =
>  		&to_intel_plane_state(dplane->state)->ckey;
>  
> @@ -420,19 +425,19 @@ vlv_update_plane(struct drm_plane *dplane, struct drm_crtc *crtc,
>  	crtc_w--;
>  	crtc_h--;
>  
> -	linear_offset = y * fb->pitches[0] + x * pixel_size;
> +	intel_add_fb_offsets(&x, &y, fb, 0, rotation);
>  	sprsurf_offset = intel_compute_page_offset(&x, &y, fb, 0,
>  						   fb->pitches[0], rotation);
> -	linear_offset -= sprsurf_offset;
>  
>  	if (rotation == BIT(DRM_ROTATE_180)) {
>  		sprctl |= SP_ROTATE_180;
>  
>  		x += src_w;
>  		y += src_h;
> -		linear_offset += src_h * fb->pitches[0] + src_w * pixel_size;
>  	}
>  
> +	linear_offset = intel_fb_xy_to_linear(x, y, fb, 0);
> +
>  	if (key->flags) {
>  		I915_WRITE(SPKEYMINVAL(pipe, plane), key->min_value);
>  		I915_WRITE(SPKEYMAXVAL(pipe, plane), key->max_value);
> @@ -457,8 +462,8 @@ vlv_update_plane(struct drm_plane *dplane, struct drm_crtc *crtc,
>  
>  	I915_WRITE(SPSIZE(pipe, plane), (crtc_h << 16) | crtc_w);
>  	I915_WRITE(SPCNTR(pipe, plane), sprctl);
> -	I915_WRITE(SPSURF(pipe, plane), i915_gem_obj_ggtt_offset(obj) +
> -		   sprsurf_offset);
> +	I915_WRITE(SPSURF(pipe, plane),
> +		   intel_surf_gtt_offset(fb, 0, rotation) + sprsurf_offset);
>  	POSTING_READ(SPSURF(pipe, plane));
>  }
>  
> @@ -492,7 +497,7 @@ ivb_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
>  	enum pipe pipe = intel_plane->pipe;
>  	u32 sprctl, sprscale = 0;
>  	unsigned int rotation = plane->state->rotation;
> -	unsigned long sprsurf_offset, linear_offset;
> +	unsigned int sprsurf_offset, linear_offset;
>  	int pixel_size = drm_format_plane_cpp(fb->pixel_format, 0);
>  	const struct drm_intel_sprite_colorkey *key =
>  		&to_intel_plane_state(plane->state)->ckey;
> @@ -552,10 +557,9 @@ ivb_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
>  	if (crtc_w != src_w || crtc_h != src_h)
>  		sprscale = SPRITE_SCALE_ENABLE | (src_w << 16) | src_h;
>  
> -	linear_offset = y * fb->pitches[0] + x * pixel_size;
> +	intel_add_fb_offsets(&x, &y, fb, 0, rotation);
>  	sprsurf_offset = intel_compute_page_offset(&x, &y, fb, 0,
>  						   fb->pitches[0], rotation);
> -	linear_offset -= sprsurf_offset;
>  
>  	if (rotation == BIT(DRM_ROTATE_180)) {
>  		sprctl |= SPRITE_ROTATE_180;
> @@ -564,11 +568,11 @@ ivb_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
>  		if (!IS_HASWELL(dev) && !IS_BROADWELL(dev)) {
>  			x += src_w;
>  			y += src_h;
> -			linear_offset += src_h * fb->pitches[0] +
> -				src_w * pixel_size;
>  		}
>  	}
>  
> +	linear_offset = intel_fb_xy_to_linear(x, y, fb, 0);
> +
>  	if (key->flags) {
>  		I915_WRITE(SPRKEYVAL(pipe), key->min_value);
>  		I915_WRITE(SPRKEYMAX(pipe), key->max_value);
> @@ -597,7 +601,7 @@ ivb_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
>  		I915_WRITE(SPRSCALE(pipe), sprscale);
>  	I915_WRITE(SPRCTL(pipe), sprctl);
>  	I915_WRITE(SPRSURF(pipe),
> -		   i915_gem_obj_ggtt_offset(obj) + sprsurf_offset);
> +		   intel_surf_gtt_offset(fb, 0, rotation) + sprsurf_offset);
>  	POSTING_READ(SPRSURF(pipe));
>  }
>  
> @@ -632,7 +636,7 @@ ilk_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
>  	struct drm_i915_gem_object *obj = intel_fb_obj(fb);
>  	int pipe = intel_plane->pipe;
>  	unsigned int rotation = plane->state->rotation;
> -	unsigned long dvssurf_offset, linear_offset;
> +	unsigned int dvssurf_offset, linear_offset;
>  	u32 dvscntr, dvsscale;
>  	int pixel_size = drm_format_plane_cpp(fb->pixel_format, 0);
>  	const struct drm_intel_sprite_colorkey *key =
> @@ -689,19 +693,19 @@ ilk_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
>  	if (crtc_w != src_w || crtc_h != src_h)
>  		dvsscale = DVS_SCALE_ENABLE | (src_w << 16) | src_h;
>  
> -	linear_offset = y * fb->pitches[0] + x * pixel_size;
> +	intel_add_fb_offsets(&x, &y, fb, 0, rotation);
>  	dvssurf_offset = intel_compute_page_offset(&x, &y, fb, 0,
>  						   fb->pitches[0], rotation);
> -	linear_offset -= dvssurf_offset;
>  
>  	if (rotation == BIT(DRM_ROTATE_180)) {
>  		dvscntr |= DVS_ROTATE_180;
>  
>  		x += src_w;
>  		y += src_h;
> -		linear_offset += src_h * fb->pitches[0] + src_w * pixel_size;
>  	}
>  
> +	linear_offset = intel_fb_xy_to_linear(x, y, fb, 0);
> +
>  	if (key->flags) {
>  		I915_WRITE(DVSKEYVAL(pipe), key->min_value);
>  		I915_WRITE(DVSKEYMAX(pipe), key->max_value);
> @@ -725,7 +729,7 @@ ilk_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
>  	I915_WRITE(DVSSCALE(pipe), dvsscale);
>  	I915_WRITE(DVSCNTR(pipe), dvscntr);
>  	I915_WRITE(DVSSURF(pipe),
> -		   i915_gem_obj_ggtt_offset(obj) + dvssurf_offset);
> +		   intel_surf_gtt_offset(fb, 0, rotation) + dvssurf_offset);
>  	POSTING_READ(DVSSURF(pipe));
>  }
>  
> -- 
> 2.4.9
> 
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch


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