Merge branch 'kvm-fix-svm-races' into HEAD
[linux-2.6-microblaze.git] / drivers / gpu / drm / i915 / gt / gen8_engine_cs.h
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
14 #include "intel_gpu_commands.h"
15
16 struct i915_request;
17
18 int gen8_emit_flush_rcs(struct i915_request *rq, u32 mode);
19 int gen11_emit_flush_rcs(struct i915_request *rq, u32 mode);
20 int gen12_emit_flush_rcs(struct i915_request *rq, u32 mode);
21
22 int gen8_emit_flush_xcs(struct i915_request *rq, u32 mode);
23 int gen12_emit_flush_xcs(struct i915_request *rq, u32 mode);
24
25 int gen8_emit_init_breadcrumb(struct i915_request *rq);
26
27 int gen8_emit_bb_start_noarb(struct i915_request *rq,
28                              u64 offset, u32 len,
29                              const unsigned int flags);
30 int gen8_emit_bb_start(struct i915_request *rq,
31                        u64 offset, u32 len,
32                        const unsigned int flags);
33
34 u32 *gen8_emit_fini_breadcrumb_xcs(struct i915_request *rq, u32 *cs);
35 u32 *gen12_emit_fini_breadcrumb_xcs(struct i915_request *rq, u32 *cs);
36
37 u32 *gen8_emit_fini_breadcrumb_rcs(struct i915_request *rq, u32 *cs);
38 u32 *gen11_emit_fini_breadcrumb_rcs(struct i915_request *rq, u32 *cs);
39 u32 *gen12_emit_fini_breadcrumb_rcs(struct i915_request *rq, u32 *cs);
40
41 static inline u32 *
42 __gen8_emit_pipe_control(u32 *batch, u32 flags0, u32 flags1, u32 offset)
43 {
44         memset(batch, 0, 6 * sizeof(u32));
45
46         batch[0] = GFX_OP_PIPE_CONTROL(6) | flags0;
47         batch[1] = flags1;
48         batch[2] = offset;
49
50         return batch + 6;
51 }
52
53 static inline u32 *gen8_emit_pipe_control(u32 *batch, u32 flags, u32 offset)
54 {
55         return __gen8_emit_pipe_control(batch, 0, flags, offset);
56 }
57
58 static inline u32 *gen12_emit_pipe_control(u32 *batch, u32 flags0, u32 flags1, u32 offset)
59 {
60         return __gen8_emit_pipe_control(batch, flags0, flags1, offset);
61 }
62
63 static inline u32 *
64 __gen8_emit_write_rcs(u32 *cs, u32 value, u32 offset, u32 flags0, u32 flags1)
65 {
66         *cs++ = GFX_OP_PIPE_CONTROL(6) | flags0;
67         *cs++ = flags1 | PIPE_CONTROL_QW_WRITE;
68         *cs++ = offset;
69         *cs++ = 0;
70         *cs++ = value;
71         *cs++ = 0; /* We're thrashing one extra dword. */
72
73         return cs;
74 }
75
76 static inline u32*
77 gen8_emit_ggtt_write_rcs(u32 *cs, u32 value, u32 gtt_offset, u32 flags)
78 {
79         /* We're using qword write, offset should be aligned to 8 bytes. */
80         GEM_BUG_ON(!IS_ALIGNED(gtt_offset, 8));
81
82         return __gen8_emit_write_rcs(cs,
83                                      value,
84                                      gtt_offset,
85                                      0,
86                                      flags | PIPE_CONTROL_GLOBAL_GTT_IVB);
87 }
88
89 static inline u32*
90 gen12_emit_ggtt_write_rcs(u32 *cs, u32 value, u32 gtt_offset, u32 flags0, u32 flags1)
91 {
92         /* We're using qword write, offset should be aligned to 8 bytes. */
93         GEM_BUG_ON(!IS_ALIGNED(gtt_offset, 8));
94
95         return __gen8_emit_write_rcs(cs,
96                                      value,
97                                      gtt_offset,
98                                      flags0,
99                                      flags1 | PIPE_CONTROL_GLOBAL_GTT_IVB);
100 }
101
102 static inline u32 *
103 __gen8_emit_flush_dw(u32 *cs, u32 value, u32 gtt_offset, u32 flags)
104 {
105         *cs++ = (MI_FLUSH_DW + 1) | flags;
106         *cs++ = gtt_offset;
107         *cs++ = 0;
108         *cs++ = value;
109
110         return cs;
111 }
112
113 static inline u32 *
114 gen8_emit_ggtt_write(u32 *cs, u32 value, u32 gtt_offset, u32 flags)
115 {
116         /* w/a: bit 5 needs to be zero for MI_FLUSH_DW address. */
117         GEM_BUG_ON(gtt_offset & (1 << 5));
118         /* Offset should be aligned to 8 bytes for both (QW/DW) write types */
119         GEM_BUG_ON(!IS_ALIGNED(gtt_offset, 8));
120
121         return __gen8_emit_flush_dw(cs,
122                                     value,
123                                     gtt_offset | MI_FLUSH_DW_USE_GTT,
124                                     flags | MI_FLUSH_DW_OP_STOREDW);
125 }
126
127 #endif /* __GEN8_ENGINE_CS_H__ */