From 34996e42f82bfd60bc2c191e5cae3c6ab233ec6c Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 7 Aug 2024 15:11:27 +0200 Subject: Merging upstream version 6.9.7. Signed-off-by: Daniel Baumann --- include/drm/display/drm_dp_tunnel.h | 248 ++++++++++++++++++++++++++++++++++++ 1 file changed, 248 insertions(+) create mode 100644 include/drm/display/drm_dp_tunnel.h (limited to 'include/drm/display/drm_dp_tunnel.h') diff --git a/include/drm/display/drm_dp_tunnel.h b/include/drm/display/drm_dp_tunnel.h new file mode 100644 index 0000000000..87212c8479 --- /dev/null +++ b/include/drm/display/drm_dp_tunnel.h @@ -0,0 +1,248 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2023 Intel Corporation + */ + +#ifndef __DRM_DP_TUNNEL_H__ +#define __DRM_DP_TUNNEL_H__ + +#include +#include +#include + +struct drm_dp_aux; + +struct drm_device; + +struct drm_atomic_state; +struct drm_dp_tunnel_mgr; +struct drm_dp_tunnel_state; + +struct ref_tracker; + +struct drm_dp_tunnel_ref { + struct drm_dp_tunnel *tunnel; + struct ref_tracker *tracker; +}; + +#ifdef CONFIG_DRM_DISPLAY_DP_TUNNEL + +struct drm_dp_tunnel * +drm_dp_tunnel_get(struct drm_dp_tunnel *tunnel, struct ref_tracker **tracker); + +void +drm_dp_tunnel_put(struct drm_dp_tunnel *tunnel, struct ref_tracker **tracker); + +static inline void drm_dp_tunnel_ref_get(struct drm_dp_tunnel *tunnel, + struct drm_dp_tunnel_ref *tunnel_ref) +{ + tunnel_ref->tunnel = drm_dp_tunnel_get(tunnel, &tunnel_ref->tracker); +} + +static inline void drm_dp_tunnel_ref_put(struct drm_dp_tunnel_ref *tunnel_ref) +{ + drm_dp_tunnel_put(tunnel_ref->tunnel, &tunnel_ref->tracker); + tunnel_ref->tunnel = NULL; +} + +struct drm_dp_tunnel * +drm_dp_tunnel_detect(struct drm_dp_tunnel_mgr *mgr, + struct drm_dp_aux *aux); +int drm_dp_tunnel_destroy(struct drm_dp_tunnel *tunnel); + +int drm_dp_tunnel_enable_bw_alloc(struct drm_dp_tunnel *tunnel); +int drm_dp_tunnel_disable_bw_alloc(struct drm_dp_tunnel *tunnel); +bool drm_dp_tunnel_bw_alloc_is_enabled(const struct drm_dp_tunnel *tunnel); +int drm_dp_tunnel_alloc_bw(struct drm_dp_tunnel *tunnel, int bw); +int drm_dp_tunnel_get_allocated_bw(struct drm_dp_tunnel *tunnel); +int drm_dp_tunnel_update_state(struct drm_dp_tunnel *tunnel); + +void drm_dp_tunnel_set_io_error(struct drm_dp_tunnel *tunnel); + +int drm_dp_tunnel_handle_irq(struct drm_dp_tunnel_mgr *mgr, + struct drm_dp_aux *aux); + +int drm_dp_tunnel_max_dprx_rate(const struct drm_dp_tunnel *tunnel); +int drm_dp_tunnel_max_dprx_lane_count(const struct drm_dp_tunnel *tunnel); +int drm_dp_tunnel_available_bw(const struct drm_dp_tunnel *tunnel); + +const char *drm_dp_tunnel_name(const struct drm_dp_tunnel *tunnel); + +struct drm_dp_tunnel_state * +drm_dp_tunnel_atomic_get_state(struct drm_atomic_state *state, + struct drm_dp_tunnel *tunnel); + +struct drm_dp_tunnel_state * +drm_dp_tunnel_atomic_get_old_state(struct drm_atomic_state *state, + const struct drm_dp_tunnel *tunnel); + +struct drm_dp_tunnel_state * +drm_dp_tunnel_atomic_get_new_state(struct drm_atomic_state *state, + const struct drm_dp_tunnel *tunnel); + +int drm_dp_tunnel_atomic_set_stream_bw(struct drm_atomic_state *state, + struct drm_dp_tunnel *tunnel, + u8 stream_id, int bw); +int drm_dp_tunnel_atomic_get_group_streams_in_state(struct drm_atomic_state *state, + const struct drm_dp_tunnel *tunnel, + u32 *stream_mask); + +int drm_dp_tunnel_atomic_check_stream_bws(struct drm_atomic_state *state, + u32 *failed_stream_mask); + +int drm_dp_tunnel_atomic_get_required_bw(const struct drm_dp_tunnel_state *tunnel_state); + +struct drm_dp_tunnel_mgr * +drm_dp_tunnel_mgr_create(struct drm_device *dev, int max_group_count); +void drm_dp_tunnel_mgr_destroy(struct drm_dp_tunnel_mgr *mgr); + +#else + +static inline struct drm_dp_tunnel * +drm_dp_tunnel_get(struct drm_dp_tunnel *tunnel, struct ref_tracker **tracker) +{ + return NULL; +} + +static inline void +drm_dp_tunnel_put(struct drm_dp_tunnel *tunnel, struct ref_tracker **tracker) {} + +static inline void drm_dp_tunnel_ref_get(struct drm_dp_tunnel *tunnel, + struct drm_dp_tunnel_ref *tunnel_ref) {} + +static inline void drm_dp_tunnel_ref_put(struct drm_dp_tunnel_ref *tunnel_ref) {} + +static inline struct drm_dp_tunnel * +drm_dp_tunnel_detect(struct drm_dp_tunnel_mgr *mgr, + struct drm_dp_aux *aux) +{ + return ERR_PTR(-EOPNOTSUPP); +} + +static inline int +drm_dp_tunnel_destroy(struct drm_dp_tunnel *tunnel) +{ + return 0; +} + +static inline int drm_dp_tunnel_enable_bw_alloc(struct drm_dp_tunnel *tunnel) +{ + return -EOPNOTSUPP; +} + +static inline int drm_dp_tunnel_disable_bw_alloc(struct drm_dp_tunnel *tunnel) +{ + return -EOPNOTSUPP; +} + +static inline bool drm_dp_tunnel_bw_alloc_is_enabled(const struct drm_dp_tunnel *tunnel) +{ + return false; +} + +static inline int +drm_dp_tunnel_alloc_bw(struct drm_dp_tunnel *tunnel, int bw) +{ + return -EOPNOTSUPP; +} + +static inline int +drm_dp_tunnel_get_allocated_bw(struct drm_dp_tunnel *tunnel) +{ + return -1; +} + +static inline int +drm_dp_tunnel_update_state(struct drm_dp_tunnel *tunnel) +{ + return -EOPNOTSUPP; +} + +static inline void drm_dp_tunnel_set_io_error(struct drm_dp_tunnel *tunnel) {} + +static inline int +drm_dp_tunnel_handle_irq(struct drm_dp_tunnel_mgr *mgr, + struct drm_dp_aux *aux) +{ + return -EOPNOTSUPP; +} + +static inline int +drm_dp_tunnel_max_dprx_rate(const struct drm_dp_tunnel *tunnel) +{ + return 0; +} + +static inline int +drm_dp_tunnel_max_dprx_lane_count(const struct drm_dp_tunnel *tunnel) +{ + return 0; +} + +static inline int +drm_dp_tunnel_available_bw(const struct drm_dp_tunnel *tunnel) +{ + return -1; +} + +static inline const char * +drm_dp_tunnel_name(const struct drm_dp_tunnel *tunnel) +{ + return NULL; +} + +static inline struct drm_dp_tunnel_state * +drm_dp_tunnel_atomic_get_state(struct drm_atomic_state *state, + struct drm_dp_tunnel *tunnel) +{ + return ERR_PTR(-EOPNOTSUPP); +} + +static inline struct drm_dp_tunnel_state * +drm_dp_tunnel_atomic_get_new_state(struct drm_atomic_state *state, + const struct drm_dp_tunnel *tunnel) +{ + return ERR_PTR(-EOPNOTSUPP); +} + +static inline int +drm_dp_tunnel_atomic_set_stream_bw(struct drm_atomic_state *state, + struct drm_dp_tunnel *tunnel, + u8 stream_id, int bw) +{ + return -EOPNOTSUPP; +} + +static inline int +drm_dp_tunnel_atomic_get_group_streams_in_state(struct drm_atomic_state *state, + const struct drm_dp_tunnel *tunnel, + u32 *stream_mask) +{ + return -EOPNOTSUPP; +} + +static inline int +drm_dp_tunnel_atomic_check_stream_bws(struct drm_atomic_state *state, + u32 *failed_stream_mask) +{ + return -EOPNOTSUPP; +} + +static inline int +drm_dp_tunnel_atomic_get_required_bw(const struct drm_dp_tunnel_state *tunnel_state) +{ + return 0; +} + +static inline struct drm_dp_tunnel_mgr * +drm_dp_tunnel_mgr_create(struct drm_device *dev, int max_group_count) +{ + return ERR_PTR(-EOPNOTSUPP); +} + +static inline +void drm_dp_tunnel_mgr_destroy(struct drm_dp_tunnel_mgr *mgr) {} + +#endif /* CONFIG_DRM_DISPLAY_DP_TUNNEL */ + +#endif /* __DRM_DP_TUNNEL_H__ */ -- cgit v1.2.3