1/* SPDX-License-Identifier: MIT */
2/*
3 * Copyright © 2014 Intel Corporation
4 */
5
6#ifndef __GEN8_ENGINE_CS_H__
7#define __GEN8_ENGINE_CS_H__
8
9#include <linux/string.h>
10#include <linux/types.h>
11
12#include "i915_gem.h" /* GEM_BUG_ON */
13#include "intel_gt_regs.h"
14#include "intel_gpu_commands.h"
15
16struct intel_engine_cs;
17struct intel_gt;
18struct i915_request;
19
20int gen8_emit_flush_rcs(struct i915_request *rq, u32 mode);
21int gen11_emit_flush_rcs(struct i915_request *rq, u32 mode);
22int gen12_emit_flush_rcs(struct i915_request *rq, u32 mode);
23
24int gen8_emit_flush_xcs(struct i915_request *rq, u32 mode);
25int gen12_emit_flush_xcs(struct i915_request *rq, u32 mode);
26
27int gen8_emit_init_breadcrumb(struct i915_request *rq);
28
29int gen8_emit_bb_start_noarb(struct i915_request *rq,
30 u64 offset, u32 len,
31 const unsigned int flags);
32int gen8_emit_bb_start(struct i915_request *rq,
33 u64 offset, u32 len,
34 const unsigned int flags);
35
36int xehp_emit_bb_start_noarb(struct i915_request *rq,
37 u64 offset, u32 len,
38 const unsigned int flags);
39int xehp_emit_bb_start(struct i915_request *rq,
40 u64 offset, u32 len,
41 const unsigned int flags);
42
43u32 *gen8_emit_fini_breadcrumb_xcs(struct i915_request *rq, u32 *cs);
44u32 *gen12_emit_fini_breadcrumb_xcs(struct i915_request *rq, u32 *cs);
45
46u32 *gen8_emit_fini_breadcrumb_rcs(struct i915_request *rq, u32 *cs);
47u32 *gen11_emit_fini_breadcrumb_rcs(struct i915_request *rq, u32 *cs);
48u32 *gen12_emit_fini_breadcrumb_rcs(struct i915_request *rq, u32 *cs);
49
50u32 *gen12_emit_aux_table_inv(struct intel_engine_cs *engine, u32 *cs);
51
52static inline u32 *
53__gen8_emit_pipe_control(u32 *batch, u32 bit_group_0,
54 u32 bit_group_1, u32 offset)
55{
56 memset(batch, 0, 6 * sizeof(u32));
57
58 batch[0] = GFX_OP_PIPE_CONTROL(6) | bit_group_0;
59 batch[1] = bit_group_1;
60 batch[2] = offset;
61
62 return batch + 6;
63}
64
65static inline u32 *gen8_emit_pipe_control(u32 *batch,
66 u32 bit_group_1, u32 offset)
67{
68 return __gen8_emit_pipe_control(batch, bit_group_0: 0, bit_group_1, offset);
69}
70
71static inline u32 *gen12_emit_pipe_control(u32 *batch, u32 bit_group_0,
72 u32 bit_group_1, u32 offset)
73{
74 return __gen8_emit_pipe_control(batch, bit_group_0,
75 bit_group_1, offset);
76}
77
78static inline u32 *
79__gen8_emit_write_rcs(u32 *cs, u32 value, u32 offset, u32 flags0, u32 flags1)
80{
81 *cs++ = GFX_OP_PIPE_CONTROL(6) | flags0;
82 *cs++ = flags1 | PIPE_CONTROL_QW_WRITE;
83 *cs++ = offset;
84 *cs++ = 0;
85 *cs++ = value;
86 *cs++ = 0; /* We're thrashing one extra dword. */
87
88 return cs;
89}
90
91static inline u32*
92gen8_emit_ggtt_write_rcs(u32 *cs, u32 value, u32 gtt_offset, u32 flags)
93{
94 /* We're using qword write, offset should be aligned to 8 bytes. */
95 GEM_BUG_ON(!IS_ALIGNED(gtt_offset, 8));
96
97 return __gen8_emit_write_rcs(cs,
98 value,
99 offset: gtt_offset,
100 flags0: 0,
101 flags1: flags | PIPE_CONTROL_GLOBAL_GTT_IVB);
102}
103
104static inline u32*
105gen12_emit_ggtt_write_rcs(u32 *cs, u32 value, u32 gtt_offset, u32 flags0, u32 flags1)
106{
107 /* We're using qword write, offset should be aligned to 8 bytes. */
108 GEM_BUG_ON(!IS_ALIGNED(gtt_offset, 8));
109
110 return __gen8_emit_write_rcs(cs,
111 value,
112 offset: gtt_offset,
113 flags0,
114 flags1: flags1 | PIPE_CONTROL_GLOBAL_GTT_IVB);
115}
116
117static inline u32 *
118__gen8_emit_flush_dw(u32 *cs, u32 value, u32 gtt_offset, u32 flags)
119{
120 *cs++ = (MI_FLUSH_DW + 1) | flags;
121 *cs++ = gtt_offset;
122 *cs++ = 0;
123 *cs++ = value;
124
125 return cs;
126}
127
128static inline u32 *
129gen8_emit_ggtt_write(u32 *cs, u32 value, u32 gtt_offset, u32 flags)
130{
131 /* w/a: bit 5 needs to be zero for MI_FLUSH_DW address. */
132 GEM_BUG_ON(gtt_offset & (1 << 5));
133 /* Offset should be aligned to 8 bytes for both (QW/DW) write types */
134 GEM_BUG_ON(!IS_ALIGNED(gtt_offset, 8));
135
136 return __gen8_emit_flush_dw(cs,
137 value,
138 gtt_offset: gtt_offset | MI_FLUSH_DW_USE_GTT,
139 flags: flags | MI_FLUSH_DW_OP_STOREDW);
140}
141
142#endif /* __GEN8_ENGINE_CS_H__ */
143

source code of linux/drivers/gpu/drm/i915/gt/gen8_engine_cs.h