Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
drm/omapdrm: 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 to a multiple of 8.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Link: https://lore.kernel.org/r/20250821081918.79786-16-tzimmermann@suse.de
+7
-8
+7
-8
drivers/gpu/drm/omapdrm/omap_gem.c
+7
-8
drivers/gpu/drm/omapdrm/omap_gem.c
···
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10
#include <linux/spinlock.h>
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11
#include <linux/vmalloc.h>
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12
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+
#include <drm/drm_dumb_buffers.h>
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#include <drm/drm_prime.h>
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#include <drm/drm_vma_manager.h>
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···
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int omap_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
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struct drm_mode_create_dumb *args)
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{
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-
union omap_gem_size gsize;
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+
union omap_gem_size gsize = { };
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+
int ret;
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-
args->pitch = DIV_ROUND_UP(args->width * args->bpp, 8);
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-
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-
args->size = PAGE_ALIGN(args->pitch * args->height);
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-
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-
gsize = (union omap_gem_size){
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-
.bytes = args->size,
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-
};
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+
ret = drm_mode_size_dumb(dev, args, SZ_8, 0);
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+
if (ret)
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return ret;
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+
gsize.bytes = args->size;
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return omap_gem_new_handle(dev, file, gsize,
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OMAP_BO_SCANOUT | OMAP_BO_WC, &args->handle);