1 /* SPDX-License-Identifier: MIT */ 2 /* 3 * Copyright © 2019 Intel Corporation 4 */ 5 6 #ifndef __INTEL_BW_H__ 7 #define __INTEL_BW_H__ 8 9 #include <drm/drm_atomic.h> 10 11 #include "intel_display.h" 12 #include "intel_display_power.h" 13 #include "intel_global_state.h" 14 15 struct drm_i915_private; 16 struct intel_atomic_state; 17 struct intel_crtc_state; 18 19 struct intel_dbuf_bw { 20 unsigned int max_bw[I915_MAX_DBUF_SLICES]; 21 u8 active_planes[I915_MAX_DBUF_SLICES]; 22 }; 23 24 struct intel_bw_state { 25 struct intel_global_state base; 26 struct intel_dbuf_bw dbuf_bw[I915_MAX_PIPES]; 27 28 /* 29 * Contains a bit mask, used to determine, whether correspondent 30 * pipe allows SAGV or not. 31 */ 32 u8 pipe_sagv_reject; 33 34 /* bitmask of active pipes */ 35 u8 active_pipes; 36 37 /* 38 * Current QGV points mask, which restricts 39 * some particular SAGV states, not to confuse 40 * with pipe_sagv_mask. 41 */ 42 u16 qgv_points_mask; 43 44 int min_cdclk[I915_MAX_PIPES]; 45 unsigned int data_rate[I915_MAX_PIPES]; 46 u8 num_active_planes[I915_MAX_PIPES]; 47 }; 48 49 #define to_intel_bw_state(x) container_of((x), struct intel_bw_state, base) 50 51 struct intel_bw_state * 52 intel_atomic_get_old_bw_state(struct intel_atomic_state *state); 53 54 struct intel_bw_state * 55 intel_atomic_get_new_bw_state(struct intel_atomic_state *state); 56 57 struct intel_bw_state * 58 intel_atomic_get_bw_state(struct intel_atomic_state *state); 59 60 void intel_bw_init_hw(struct drm_i915_private *dev_priv); 61 int intel_bw_init(struct drm_i915_private *dev_priv); 62 int intel_bw_atomic_check(struct intel_atomic_state *state); 63 void intel_bw_crtc_update(struct intel_bw_state *bw_state, 64 const struct intel_crtc_state *crtc_state); 65 int icl_pcode_restrict_qgv_points(struct drm_i915_private *dev_priv, 66 u32 points_mask); 67 int intel_bw_calc_min_cdclk(struct intel_atomic_state *state, 68 bool *need_cdclk_calc); 69 int intel_bw_min_cdclk(struct drm_i915_private *i915, 70 const struct intel_bw_state *bw_state); 71 72 #endif /* __INTEL_BW_H__ */ 73