[PATCH v5 18/25] drm/renesas/rz-du: Compute dumb-buffer sizes with drm_mode_size_dumb()
From: Thomas Zimmermann <tzimmermann@suse.de>
Date: 2025-06-13 09:05:10
Also in:
dri-devel, imx, intel-xe, linux-arm-msm, linux-mediatek, linux-renesas-soc, linux-rockchip, linux-samsung-soc, linux-tegra, nouveau, xen-devel
Subsystem:
drm drivers, drm drivers and misc gpu patches, drm drivers for renesas rz, the rest · Maintainers:
David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Biju Das, Linus Torvalds
Call drm_mode_size_dumb() to compute dumb-buffer scanline pitch and buffer size. Align the pitch according to hardware requirements. v5: - include dumb-buffers header for drm_mode_size_dumb() (kernel test robot) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Cc: Biju Das <biju.das.jz@bp.renesas.com> --- drivers/gpu/drm/renesas/rz-du/rzg2l_du_kms.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/renesas/rz-du/rzg2l_du_kms.c b/drivers/gpu/drm/renesas/rz-du/rzg2l_du_kms.c
index 55a97691e9b2..d446229bcfe7 100644
--- a/drivers/gpu/drm/renesas/rz-du/rzg2l_du_kms.c
+++ b/drivers/gpu/drm/renesas/rz-du/rzg2l_du_kms.c@@ -11,6 +11,7 @@ #include <drm/drm_atomic_helper.h> #include <drm/drm_crtc.h> #include <drm/drm_device.h> +#include <drm/drm_dumb_buffers.h> #include <drm/drm_framebuffer.h> #include <drm/drm_gem_dma_helper.h> #include <drm/drm_gem_framebuffer_helper.h>
@@ -181,10 +182,11 @@ const struct rzg2l_du_format_info *rzg2l_du_format_info(u32 fourcc) int rzg2l_du_dumb_create(struct drm_file *file, struct drm_device *dev, struct drm_mode_create_dumb *args) { - unsigned int min_pitch = DIV_ROUND_UP(args->width * args->bpp, 8); - unsigned int align = 16 * args->bpp / 8; + int ret; - args->pitch = roundup(min_pitch, align); + ret = drm_mode_size_dumb(dev, args, 16 * args->bpp / 8, 0); + if (ret) + return ret; return drm_gem_dma_dumb_create_internal(file, dev, args); }
--
2.49.0