1 /* SPDX-License-Identifier: MIT 2 * 3 * Copyright © 2019 Intel Corporation 4 */ 5 6 #ifndef _INTEL_DSB_H 7 #define _INTEL_DSB_H 8 9 #include <linux/types.h> 10 11 #include "i915_reg_defs.h" 12 13 struct intel_atomic_state; 14 struct intel_crtc; 15 struct intel_crtc_state; 16 struct intel_display; 17 struct intel_dsb; 18 19 enum pipe; 20 21 enum intel_dsb_id { 22 INTEL_DSB_0, 23 INTEL_DSB_1, 24 INTEL_DSB_2, 25 26 I915_MAX_DSBS, 27 }; 28 29 unsigned int intel_dsb_size(struct intel_dsb *dsb); 30 unsigned int intel_dsb_head(struct intel_dsb *dsb); 31 struct intel_dsb *intel_dsb_prepare(struct intel_atomic_state *state, 32 struct intel_crtc *crtc, 33 enum intel_dsb_id dsb_id, 34 unsigned int max_cmds); 35 void intel_dsb_finish(struct intel_dsb *dsb); 36 void intel_dsb_gosub_finish(struct intel_dsb *dsb); 37 void intel_dsb_cleanup(struct intel_dsb *dsb); 38 int intel_dsb_exec_time_us(void); 39 void intel_dsb_reg_write(struct intel_dsb *dsb, 40 i915_reg_t reg, u32 val); 41 void intel_dsb_reg_write_indexed(struct intel_dsb *dsb, 42 i915_reg_t reg, u32 val); 43 void intel_dsb_reg_write_masked(struct intel_dsb *dsb, 44 i915_reg_t reg, u32 mask, u32 val); 45 void intel_dsb_noop(struct intel_dsb *dsb, int count); 46 void intel_dsb_nonpost_start(struct intel_dsb *dsb); 47 void intel_dsb_nonpost_end(struct intel_dsb *dsb); 48 void intel_dsb_interrupt(struct intel_dsb *dsb); 49 void intel_dsb_wait_usec(struct intel_dsb *dsb, int count); 50 void intel_dsb_wait_vblanks(struct intel_dsb *dsb, int count); 51 void intel_dsb_wait_vblank_delay(struct intel_atomic_state *state, 52 struct intel_dsb *dsb); 53 void intel_dsb_wait_scanline_in(struct intel_atomic_state *state, 54 struct intel_dsb *dsb, 55 int lower, int upper); 56 void intel_dsb_wait_scanline_out(struct intel_atomic_state *state, 57 struct intel_dsb *dsb, 58 int lower, int upper); 59 void intel_dsb_vblank_evade(struct intel_atomic_state *state, 60 struct intel_dsb *dsb); 61 void intel_dsb_poll(struct intel_dsb *dsb, 62 i915_reg_t reg, u32 mask, u32 val, 63 int wait_us, int count); 64 void intel_dsb_gosub(struct intel_dsb *dsb, 65 struct intel_dsb *sub_dsb); 66 void intel_dsb_chain(struct intel_atomic_state *state, 67 struct intel_dsb *dsb, 68 struct intel_dsb *chained_dsb, 69 bool wait_for_vblank); 70 71 void intel_dsb_commit(struct intel_dsb *dsb); 72 void intel_dsb_wait(struct intel_dsb *dsb); 73 74 void intel_dsb_irq_handler(struct intel_display *display, 75 enum pipe pipe, enum intel_dsb_id dsb_id); 76 77 #endif 78