1 /* SPDX-License-Identifier: MIT */ 2 #ifndef __NV50_CRC_H__ 3 #define __NV50_CRC_H__ 4 5 #include <linux/mutex.h> 6 #include <drm/drm_crtc.h> 7 #include <drm/drm_vblank_work.h> 8 9 #include <nvif/mem.h> 10 #include <nvkm/subdev/bios.h> 11 #include "nouveau_encoder.h" 12 13 struct nv50_atom; 14 struct nv50_disp; 15 struct nv50_head; 16 17 #if IS_ENABLED(CONFIG_DEBUG_FS) 18 enum nv50_crc_source { 19 NV50_CRC_SOURCE_NONE = 0, 20 NV50_CRC_SOURCE_AUTO, 21 NV50_CRC_SOURCE_RG, 22 NV50_CRC_SOURCE_OUTP_ACTIVE, 23 NV50_CRC_SOURCE_OUTP_COMPLETE, 24 NV50_CRC_SOURCE_OUTP_INACTIVE, 25 }; 26 27 /* RG -> SF (DP only) 28 * -> SOR 29 * -> PIOR 30 * -> DAC 31 */ 32 enum nv50_crc_source_type { 33 NV50_CRC_SOURCE_TYPE_NONE = 0, 34 NV50_CRC_SOURCE_TYPE_SOR, 35 NV50_CRC_SOURCE_TYPE_PIOR, 36 NV50_CRC_SOURCE_TYPE_DAC, 37 NV50_CRC_SOURCE_TYPE_RG, 38 NV50_CRC_SOURCE_TYPE_SF, 39 }; 40 41 struct nv50_crc_notifier_ctx { 42 struct nvif_mem mem; 43 struct nvif_object ntfy; 44 }; 45 46 struct nv50_crc_atom { 47 enum nv50_crc_source src; 48 }; 49 50 struct nv50_crc_func { 51 int (*set_src)(struct nv50_head *, int or, enum nv50_crc_source_type type, 52 struct nv50_crc_notifier_ctx *ctx); 53 int (*set_ctx)(struct nv50_head *, struct nv50_crc_notifier_ctx *); 54 u32 (*get_entry)(struct nv50_head *, struct nv50_crc_notifier_ctx *, 55 enum nv50_crc_source, int idx); 56 bool (*ctx_finished)(struct nv50_head *, 57 struct nv50_crc_notifier_ctx *); 58 short flip_threshold; 59 short num_entries; 60 size_t notifier_len; 61 }; 62 63 struct nv50_crc { 64 spinlock_t lock; 65 struct nv50_crc_notifier_ctx ctx[2]; 66 struct drm_vblank_work flip_work; 67 enum nv50_crc_source src; 68 69 u64 frame; 70 short entry_idx; 71 short flip_threshold; 72 u8 ctx_idx : 1; 73 bool ctx_changed : 1; 74 }; 75 76 void nv50_crc_init(struct drm_device *dev); 77 int nv50_head_crc_late_register(struct nv50_head *); 78 void nv50_crc_handle_vblank(struct nv50_head *head); 79 80 int nv50_crc_verify_source(struct drm_crtc *, const char *, size_t *); 81 const char *const *nv50_crc_get_sources(struct drm_crtc *, size_t *); 82 int nv50_crc_set_source(struct drm_crtc *, const char *); 83 84 int nv50_crc_atomic_check_head(struct nv50_head *, struct nv50_head_atom *, 85 struct nv50_head_atom *); 86 void nv50_crc_atomic_check_outp(struct nv50_atom *atom); 87 void nv50_crc_atomic_stop_reporting(struct drm_atomic_state *); 88 void nv50_crc_atomic_init_notifier_contexts(struct drm_atomic_state *); 89 void nv50_crc_atomic_release_notifier_contexts(struct drm_atomic_state *); 90 void nv50_crc_atomic_start_reporting(struct drm_atomic_state *); 91 void nv50_crc_atomic_set(struct nv50_head *, struct nv50_head_atom *); 92 void nv50_crc_atomic_clr(struct nv50_head *); 93 94 extern const struct nv50_crc_func crc907d; 95 extern const struct nv50_crc_func crcc37d; 96 extern const struct nv50_crc_func crcc57d; 97 98 #else /* IS_ENABLED(CONFIG_DEBUG_FS) */ 99 struct nv50_crc {}; 100 struct nv50_crc_func {}; 101 struct nv50_crc_atom {}; 102 103 #define nv50_crc_verify_source NULL 104 #define nv50_crc_get_sources NULL 105 #define nv50_crc_set_source NULL 106 107 static inline void nv50_crc_init(struct drm_device *dev) {} 108 static inline int 109 nv50_head_crc_late_register(struct nv50_head *head) { return 0; } 110 static inline void nv50_crc_handle_vblank(struct nv50_head *head) {} 111 112 static inline int 113 nv50_crc_atomic_check_head(struct nv50_head *head, 114 struct nv50_head_atom *asyh, 115 struct nv50_head_atom *armh) { return 0; } 116 static inline void nv50_crc_atomic_check_outp(struct nv50_atom *atom) {} 117 static inline void 118 nv50_crc_atomic_stop_reporting(struct drm_atomic_state *state) {} 119 static inline void 120 nv50_crc_atomic_init_notifier_contexts(struct drm_atomic_state *state) {} 121 static inline void 122 nv50_crc_atomic_release_notifier_contexts(struct drm_atomic_state *state) {} 123 static inline void 124 nv50_crc_atomic_start_reporting(struct drm_atomic_state *state) {} 125 static inline void 126 nv50_crc_atomic_set(struct nv50_head *head, struct nv50_head_atom *state) {} 127 static inline void 128 nv50_crc_atomic_clr(struct nv50_head *head) {} 129 130 #endif /* IS_ENABLED(CONFIG_DEBUG_FS) */ 131 #endif /* !__NV50_CRC_H__ */ 132