Displaying 2 results from an estimated 2 matches for "omap_gem_object_mmap".
2025 Jan 09
1
[PATCH v2 15/25] drm/omapdrm: Compute dumb-buffer sizes with drm_mode_size_dumb()
...drm/omapdrm/omap_gem.c
+++ b/drivers/gpu/drm/omapdrm/omap_gem.c
@@ -11,6 +11,7 @@
#include <linux/pfn_t.h>
#include <linux/vmalloc.h>
+#include <drm/drm_dumb_buffers.h>
#include <drm/drm_prime.h>
#include <drm/drm_vma_manager.h>
@@ -583,15 +584,13 @@ static int omap_gem_object_mmap(struct drm_gem_object *obj, struct vm_area_struc
int omap_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
struct drm_mode_create_dumb *args)
{
- union omap_gem_size gsize;
-
- args->pitch = DIV_ROUND_UP(args->width * args->bpp, 8);
-
- args->size = PAGE_ALIGN(args-&g...
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