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