linux/drivers/gpu/drm/nouveau/nouveau_display.h
Imre Deak d2b524c906 drm/nouveau: Pass along the format info from .fb_create() to drm_helper_mode_fill_fb_struct()
Plumb the format info from .fb_create() all the way to
drm_helper_mode_fill_fb_struct() to avoid the redundant
lookup.

The patch is based on the driver parts of the patchset at Link:
below, which missed converting the nouveau driver.

Due to the absence of this change in the patchset at Link:, after the
Fixed: commit below, nouveau_framebuffer_new() ->
drm_helper_mode_fill_fb_struct() set drm_framebuffer::format incorrectly
to NULL, which lead to the !fb->format WARN() in drm_framebuffer_init()
and causing framebuffer creation to fail. This patch fixes both of these
issues.

v2: Amend the commit log mentioning the functional issues the patch
    fixes. (Tomi)

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Lyude Paul <lyude@redhat.com>
Cc: Danilo Krummrich <dakr@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Cc: nouveau@lists.freedesktop.org
Fixes: 41ab92d35c ("drm: Make passing of format info to drm_helper_mode_fill_fb_struct() mandatory")
Link: https://lore.kernel.org/all/20250701090722.13645-1-ville.syrjala@linux.intel.com
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Reviewed-by: James Jones <jajones@nvidia.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: James Jones <jajones@nvidia.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://lore.kernel.org/r/20250805175752.690504-3-imre.deak@intel.com
2025-08-06 15:26:15 +03:00

76 lines
2.4 KiB
C

/* SPDX-License-Identifier: MIT */
#ifndef __NOUVEAU_DISPLAY_H__
#define __NOUVEAU_DISPLAY_H__
#include "nouveau_drv.h"
#include <nvif/disp.h>
#include <drm/drm_framebuffer.h>
struct drm_format_info;
int
nouveau_framebuffer_new(struct drm_device *dev,
const struct drm_format_info *info,
const struct drm_mode_fb_cmd2 *mode_cmd,
struct drm_gem_object *gem,
struct drm_framebuffer **pfb);
struct nouveau_display {
void *priv;
void (*dtor)(struct drm_device *);
int (*init)(struct drm_device *, bool resume, bool runtime);
void (*fini)(struct drm_device *, bool suspend, bool runtime);
struct nvif_disp disp;
struct drm_property *dithering_mode;
struct drm_property *dithering_depth;
struct drm_property *underscan_property;
struct drm_property *underscan_hborder_property;
struct drm_property *underscan_vborder_property;
/* not really hue and saturation: */
struct drm_property *vibrant_hue_property;
struct drm_property *color_vibrance_property;
struct drm_atomic_state *suspend;
const u64 *format_modifiers;
};
static inline struct nouveau_display *
nouveau_display(struct drm_device *dev)
{
return nouveau_drm(dev)->display;
}
int nouveau_display_create(struct drm_device *dev);
void nouveau_display_destroy(struct drm_device *dev);
int nouveau_display_init(struct drm_device *dev, bool resume, bool runtime);
void nouveau_display_hpd_resume(struct nouveau_drm *);
void nouveau_display_fini(struct drm_device *dev, bool suspend, bool runtime);
int nouveau_display_suspend(struct drm_device *dev, bool runtime);
void nouveau_display_resume(struct drm_device *dev, bool runtime);
int nouveau_display_vblank_enable(struct drm_crtc *crtc);
void nouveau_display_vblank_disable(struct drm_crtc *crtc);
bool nouveau_display_scanoutpos(struct drm_crtc *crtc,
bool in_vblank_irq, int *vpos, int *hpos,
ktime_t *stime, ktime_t *etime,
const struct drm_display_mode *mode);
int nouveau_display_dumb_create(struct drm_file *, struct drm_device *,
struct drm_mode_create_dumb *args);
void nouveau_hdmi_mode_set(struct drm_encoder *, struct drm_display_mode *);
void
nouveau_framebuffer_get_layout(struct drm_framebuffer *fb, uint32_t *tile_mode,
uint8_t *kind);
struct drm_framebuffer *
nouveau_user_framebuffer_create(struct drm_device *, struct drm_file *,
const struct drm_format_info *,
const struct drm_mode_fb_cmd2 *);
#endif