Displaying 2 results from an estimated 2 matches for "align_pitch".
2025 Jan 09
1
[PATCH v2 13/25] drm/msm: Compute dumb-buffer sizes with drm_mode_size_dumb()
...drm_file.h>
+#include <drm/drm_fourcc.h>
#include <trace/events/gpu_mem.h>
@@ -700,8 +702,29 @@ void msm_gem_unpin_iova(struct drm_gem_object *obj,
int msm_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
struct drm_mode_create_dumb *args)
{
- args->pitch = align_pitch(args->width, args->bpp);
- args->size = PAGE_ALIGN(args->pitch * args->height);
+ u32 fourcc;
+ const struct drm_format_info *info;
+ u64 pitch_align;
+ int ret;
+
+ /*
+ * Adreno needs pitch aligned to 32 pixels. Compute the number
+ * of bytes for a block of 32 pixels at the giv...
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