Displaying 2 results from an estimated 2 matches for "vmw_supports_3d".
2025 Jan 09
1
[PATCH v2 22/25] drm/vmwgfx: Compute dumb-buffer sizes with drm_mode_size_dumb()
...ers.h>
#include <drm/ttm/ttm_placement.h>
#define SVGA3D_FLAGS_64(upper32, lower32) (((uint64_t)upper32 << 32) | lower32)
@@ -2291,23 +2292,9 @@ int vmw_dumb_create(struct drm_file *file_priv,
* contents is going to be rendered guest side.
*/
if (!dev_priv->has_mob || !vmw_supports_3d(dev_priv)) {
- int cpp = DIV_ROUND_UP(args->bpp, 8);
-
- switch (cpp) {
- case 1: /* DRM_FORMAT_C8 */
- case 2: /* DRM_FORMAT_RGB565 */
- case 4: /* DRM_FORMAT_XRGB8888 */
- break;
- default:
- /*
- * Dumb buffers don't allow anything else.
- * This is tested via IGT's du...
2025 Jan 09
25
[PATCH v2 00/25] drm/dumb-buffers: Fix and improve buffer-size calculation
Dumb-buffer pitch and size is specified by width, height, bits-per-pixel
plus various hardware-specific alignments. The calculation of these
values is inconsistent and duplicated among drivers. The results for
formats with bpp < 8 are incorrect.
This series fixes this for most drivers. Default scanline pitch and
buffer size are now calculated with the existing 4CC helpers. There is
a new