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/* SPDX-License-Identifier: MIT */
#ifndef __NV50_CRC_H__
#define __NV50_CRC_H__
#include <linux/mutex.h>
#include <drm/drm_crtc.h>
#include <drm/drm_vblank_work.h>
#include <nvif/mem.h>
#include <nvkm/subdev/bios.h>
#include "nouveau_encoder.h"
struct nv50_atom;
struct nv50_disp;
struct nv50_head;
#if IS_ENABLED(CONFIG_DEBUG_FS)
enum nv50_crc_source {
NV50_CRC_SOURCE_NONE = 0,
NV50_CRC_SOURCE_AUTO,
NV50_CRC_SOURCE_RG,
NV50_CRC_SOURCE_OUTP_ACTIVE,
NV50_CRC_SOURCE_OUTP_COMPLETE,
NV50_CRC_SOURCE_OUTP_INACTIVE,
};
/* RG -> SF (DP only)
* -> SOR
* -> PIOR
* -> DAC
*/
enum nv50_crc_source_type {
NV50_CRC_SOURCE_TYPE_NONE = 0,
NV50_CRC_SOURCE_TYPE_SOR,
NV50_CRC_SOURCE_TYPE_PIOR,
NV50_CRC_SOURCE_TYPE_DAC,
NV50_CRC_SOURCE_TYPE_RG,
NV50_CRC_SOURCE_TYPE_SF,
};
struct nv50_crc_notifier_ctx {
struct nvif_mem mem;
struct nvif_object ntfy;
};
struct nv50_crc_atom {
enum nv50_crc_source src;
};
struct nv50_crc_func {
int (*set_src)(struct nv50_head *, int or, enum nv50_crc_source_type type,
struct nv50_crc_notifier_ctx *ctx);
int (*set_ctx)(struct nv50_head *, struct nv50_crc_notifier_ctx *);
u32 (*get_entry)(struct nv50_head *, struct nv50_crc_notifier_ctx *,
enum nv50_crc_source, int idx);
bool (*ctx_finished)(struct nv50_head *,
struct nv50_crc_notifier_ctx *);
short flip_threshold;
short num_entries;
size_t notifier_len;
};
struct nv50_crc {
spinlock_t lock;
struct nv50_crc_notifier_ctx ctx[2];
struct drm_vblank_work flip_work;
enum nv50_crc_source src;
u64 frame;
short entry_idx;
short flip_threshold;
u8 ctx_idx : 1;
bool ctx_changed : 1;
};
void nv50_crc_init(struct drm_device *dev);
int nv50_head_crc_late_register(struct nv50_head *);
void nv50_crc_handle_vblank(struct nv50_head *head);
int nv50_crc_verify_source(struct drm_crtc *, const char *, size_t *);
const char *const *nv50_crc_get_sources(struct drm_crtc *, size_t *);
int nv50_crc_set_source(struct drm_crtc *, const char *);
int nv50_crc_atomic_check_head(struct nv50_head *, struct nv50_head_atom *,
struct nv50_head_atom *);
void nv50_crc_atomic_check_outp(struct nv50_atom *atom);
void nv50_crc_atomic_stop_reporting(struct drm_atomic_state *);
void nv50_crc_atomic_init_notifier_contexts(struct drm_atomic_state *);
void nv50_crc_atomic_release_notifier_contexts(struct drm_atomic_state *);
void nv50_crc_atomic_start_reporting(struct drm_atomic_state *);
void nv50_crc_atomic_set(struct nv50_head *, struct nv50_head_atom *);
void nv50_crc_atomic_clr(struct nv50_head *);
extern const struct nv50_crc_func crc907d;
extern const struct nv50_crc_func crcc37d;
extern const struct nv50_crc_func crcc57d;
#else /* IS_ENABLED(CONFIG_DEBUG_FS) */
struct nv50_crc {};
struct nv50_crc_func {};
struct nv50_crc_atom {};
#define nv50_crc_verify_source NULL
#define nv50_crc_get_sources NULL
#define nv50_crc_set_source NULL
static inline void nv50_crc_init(struct drm_device *dev) {}
static inline int
nv50_head_crc_late_register(struct nv50_head *head) { return 0; }
static inline void nv50_crc_handle_vblank(struct nv50_head *head) {}
static inline int
nv50_crc_atomic_check_head(struct nv50_head *head,
struct nv50_head_atom *asyh,
struct nv50_head_atom *armh) { return 0; }
static inline void nv50_crc_atomic_check_outp(struct nv50_atom *atom) {}
static inline void
nv50_crc_atomic_stop_reporting(struct drm_atomic_state *state) {}
static inline void
nv50_crc_atomic_init_notifier_contexts(struct drm_atomic_state *state) {}
static inline void
nv50_crc_atomic_release_notifier_contexts(struct drm_atomic_state *state) {}
static inline void
nv50_crc_atomic_start_reporting(struct drm_atomic_state *state) {}
static inline void
nv50_crc_atomic_set(struct nv50_head *head, struct nv50_head_atom *state) {}
static inline void
nv50_crc_atomic_clr(struct nv50_head *head) {}
#endif /* IS_ENABLED(CONFIG_DEBUG_FS) */
#endif /* !__NV50_CRC_H__ */
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