1 /* SPDX-License-Identifier: MIT */ 2 /* 3 * Copyright © 2023 Intel Corporation 4 */ 5 6 #ifndef __INTEL_LINK_BW_H__ 7 #define __INTEL_LINK_BW_H__ 8 9 #include <linux/types.h> 10 11 #include "intel_display_limits.h" 12 13 struct intel_atomic_state; 14 struct intel_connector; 15 struct intel_crtc_state; 16 17 struct intel_link_bw_limits { 18 u8 link_dsc_pipes; 19 u8 bpp_limit_reached_pipes; 20 /* in 1/16 bpp units */ 21 int max_bpp_x16[I915_MAX_PIPES]; 22 }; 23 24 void intel_link_bw_init_limits(struct intel_atomic_state *state, 25 struct intel_link_bw_limits *limits); 26 int intel_link_bw_reduce_bpp(struct intel_atomic_state *state, 27 struct intel_link_bw_limits *limits, 28 u8 pipe_mask, 29 const char *reason); 30 bool intel_link_bw_compute_pipe_bpp(struct intel_crtc_state *crtc_state); 31 bool intel_link_bw_set_bpp_limit_for_pipe(struct intel_atomic_state *state, 32 const struct intel_link_bw_limits *old_limits, 33 struct intel_link_bw_limits *new_limits, 34 enum pipe pipe); 35 int intel_link_bw_atomic_check(struct intel_atomic_state *state, 36 struct intel_link_bw_limits *new_limits); 37 void intel_link_bw_connector_debugfs_add(struct intel_connector *connector); 38 39 #endif 40