diff options
| author | Thomas Zimmermann <tzimmermann@suse.de> | 2025-08-21 10:17:27 +0200 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2025-09-29 14:00:57 +0200 |
| commit | 6fd37c99b8edcdf8c62e3d65a0856c477b51209d (patch) | |
| tree | bdf4ae10cf6c0ebec62eed8e639addd97d8860b7 | |
| parent | 42abd3e9aad87567ecd905ba6a4aa4f1fe827890 (diff) | |
drm/tegra: Compute dumb-buffer sizes with drm_mode_size_dumb()
Call drm_mode_size_dumb() to compute dumb-buffer scanline pitch and
buffer size. Align the pitch according to hardware requirements.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Thierry Reding <treding@nvidia.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Mikko Perttunen <mperttunen@nvidia.com>
Link: https://lore.kernel.org/r/20250821081918.79786-21-tzimmermann@suse.de
| -rw-r--r-- | drivers/gpu/drm/tegra/gem.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/gpu/drm/tegra/gem.c b/drivers/gpu/drm/tegra/gem.c index 8ede07fb7a21..6b14f1e919eb 100644 --- a/drivers/gpu/drm/tegra/gem.c +++ b/drivers/gpu/drm/tegra/gem.c @@ -16,6 +16,7 @@ #include <linux/vmalloc.h> #include <drm/drm_drv.h> +#include <drm/drm_dumb_buffers.h> #include <drm/drm_prime.h> #include "drm.h" @@ -542,12 +543,13 @@ void tegra_bo_free_object(struct drm_gem_object *gem) int tegra_bo_dumb_create(struct drm_file *file, struct drm_device *drm, struct drm_mode_create_dumb *args) { - unsigned int min_pitch = DIV_ROUND_UP(args->width * args->bpp, 8); struct tegra_drm *tegra = drm->dev_private; struct tegra_bo *bo; + int ret; - args->pitch = round_up(min_pitch, tegra->pitch_align); - args->size = args->pitch * args->height; + ret = drm_mode_size_dumb(drm, args, tegra->pitch_align, 0); + if (ret) + return ret; bo = tegra_bo_create_with_handle(file, drm, args->size, 0, &args->handle); |