linux/drivers/gpu/drm/nouveau/nouveau_display.h
Ben Skeggs b167db0e68 drm/nouveau/kms: prepare to support suspend/resume of display state with atomic
This is different from the equivilant functions in the atomic helpers in
that we fully disable the pipe instead of just setting it to inactive.

We do this (primarily) to ensure the framebuffer cleanup paths are hit,
allowing buffers to be un-pinned from memory so they can be evicted to
system memory and not lose their contents while suspended.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-11-07 14:04:49 +10:00

110 lines
3.2 KiB
C

#ifndef __NOUVEAU_DISPLAY_H__
#define __NOUVEAU_DISPLAY_H__
#include <subdev/mmu.h>
#include "nouveau_drv.h"
struct nouveau_framebuffer {
struct drm_framebuffer base;
struct nouveau_bo *nvbo;
struct nvkm_vma vma;
u32 r_handle;
u32 r_format;
u32 r_pitch;
struct nvif_object h_base[4];
struct nvif_object h_core;
};
static inline struct nouveau_framebuffer *
nouveau_framebuffer(struct drm_framebuffer *fb)
{
return container_of(fb, struct nouveau_framebuffer, base);
}
int nouveau_framebuffer_new(struct drm_device *,
const struct drm_mode_fb_cmd2 *,
struct nouveau_bo *, struct nouveau_framebuffer **);
struct nouveau_page_flip_state {
struct list_head head;
struct drm_pending_vblank_event *event;
struct drm_crtc *crtc;
int bpp, pitch;
u64 offset;
};
struct nouveau_display {
void *priv;
void (*dtor)(struct drm_device *);
int (*init)(struct drm_device *);
void (*fini)(struct drm_device *);
int (*fb_ctor)(struct drm_framebuffer *);
void (*fb_dtor)(struct drm_framebuffer *);
struct nvif_object 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;
};
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);
void nouveau_display_fini(struct drm_device *dev, bool suspend);
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_device *, unsigned int);
void nouveau_display_vblank_disable(struct drm_device *, unsigned int);
int nouveau_display_scanoutpos(struct drm_device *, unsigned int,
unsigned int, int *, int *, ktime_t *,
ktime_t *, const struct drm_display_mode *);
int nouveau_display_vblstamp(struct drm_device *, unsigned int, int *,
struct timeval *, unsigned);
int nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
struct drm_pending_vblank_event *event,
uint32_t page_flip_flags);
int nouveau_finish_page_flip(struct nouveau_channel *,
struct nouveau_page_flip_state *);
int nouveau_display_dumb_create(struct drm_file *, struct drm_device *,
struct drm_mode_create_dumb *args);
int nouveau_display_dumb_map_offset(struct drm_file *, struct drm_device *,
u32 handle, u64 *offset);
void nouveau_hdmi_mode_set(struct drm_encoder *, struct drm_display_mode *);
int nouveau_crtc_set_config(struct drm_mode_set *set);
#ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT
extern int nouveau_backlight_init(struct drm_device *);
extern void nouveau_backlight_exit(struct drm_device *);
#else
static inline int
nouveau_backlight_init(struct drm_device *dev)
{
return 0;
}
static inline void
nouveau_backlight_exit(struct drm_device *dev) {
}
#endif
#endif