Commit ecf29357 authored by Thomas Zimmermann's avatar Thomas Zimmermann
Browse files

drm/exynos: Compute dumb-buffer sizes with drm_mode_size_dumb() 



Call drm_mode_size_dumb() to compute dumb-buffer scanline pitch and
buffer size. No alignment required.

Signed-off-by: default avatarThomas Zimmermann <tzimmermann@suse.de>
Cc: Inki Dae <inki.dae@samsung.com>
Cc: Seung-Woo Kim <sw0312.kim@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Alim Akhtar <alim.akhtar@samsung.com>
Acked-by: default avatarInki Dae <inki.dae@samsung.com>
Link: https://lore.kernel.org/r/20250821081918.79786-8-tzimmermann@suse.de
parent 4977dcec

drivers/gpu/drm/exynos/exynos_drm_gem.c

+5 −3
Original line number Diff line number Diff line
@@ -10,6 +10,7 @@ 
#include <linux/shmem_fs.h>

#include <linux/module.h>



#include <drm/drm_dumb_buffers.h>

#include <drm/drm_prime.h>

#include <drm/drm_vma_manager.h>

#include <drm/exynos_drm.h>
@@ -329,15 +330,16 @@ int exynos_drm_gem_dumb_create(struct drm_file *file_priv, 
	unsigned int flags;

	int ret;



	ret = drm_mode_size_dumb(dev, args, 0, 0);

	if (ret)

		return ret;



	/*

	 * allocate memory to be used for framebuffer.

	 * - this callback would be called by user application

	 *	with DRM_IOCTL_MODE_CREATE_DUMB command.

	 */



	args->pitch = args->width * ((args->bpp + 7) / 8);

	args->size = args->pitch * args->height;



	if (is_drm_iommu_supported(dev))

		flags = EXYNOS_BO_NONCONTIG | EXYNOS_BO_WC;

	else