From: Geert Uytterhoeven Date: Fri, 8 Jul 2022 18:20:48 +0000 (+0200) Subject: drm/client: Use actual bpp when allocating frame buffers X-Git-Tag: block-6.1-2022-13-10~35^2~19^2~272 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=356d2c8e76ebb1134a0685ce4b923d8201337475;p=linux-block.git drm/client: Use actual bpp when allocating frame buffers When allocating a frame buffer, the number of bits per pixel needed is derived from the deprecated drm_format_info.cpp[] field. While this may work for formats using less than 8 bits per pixel, it does lead to a large overallocation. Reduce memory consumption by using the actual number of bits per pixel instead. Signed-off-by: Geert Uytterhoeven Acked-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Signed-off-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/eabcf4f298184dabe46823fcf5ceffa1da0ec7ef.1657294931.git.geert@linux-m68k.org --- diff --git a/drivers/gpu/drm/drm_client.c b/drivers/gpu/drm/drm_client.c index af3b7395bf69..2b230b4d6942 100644 --- a/drivers/gpu/drm/drm_client.c +++ b/drivers/gpu/drm/drm_client.c @@ -264,7 +264,7 @@ drm_client_buffer_create(struct drm_client_dev *client, u32 width, u32 height, u dumb_args.width = width; dumb_args.height = height; - dumb_args.bpp = info->cpp[0] * 8; + dumb_args.bpp = drm_format_info_bpp(info, 0); ret = drm_mode_create_dumb(dev, &dumb_args, client->file); if (ret) goto err_delete; @@ -373,7 +373,7 @@ static int drm_client_buffer_addfb(struct drm_client_buffer *buffer, int ret; info = drm_format_info(format); - fb_req.bpp = info->cpp[0] * 8; + fb_req.bpp = drm_format_info_bpp(info, 0); fb_req.depth = info->depth; fb_req.width = width; fb_req.height = height;