1 /*
2 * Copyright (C) 2016 Rob Clark <robclark@freedesktop.org>
3 * Copyright © 2018 Google, Inc.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 *
24 * Authors:
25 * Rob Clark <robclark@freedesktop.org>
26 */
27
28 #ifndef FD6_CONTEXT_H_
29 #define FD6_CONTEXT_H_
30
31 #include "util/u_upload_mgr.h"
32
33 #include "freedreno_context.h"
34 #include "freedreno_resource.h"
35
36 #include "ir3/ir3_shader.h"
37 #include "ir3/ir3_descriptor.h"
38
39 #include "a6xx.xml.h"
40
41 struct fd6_lrz_state {
42 union {
43 struct {
44 bool enable : 1;
45 bool write : 1;
46 bool test : 1;
47 bool z_bounds_enable : 1;
48 enum fd_lrz_direction direction : 2;
49
50 /* this comes from the fs program state, rather than zsa: */
51 enum a6xx_ztest_mode z_mode : 2;
52 };
53 uint32_t val : 8;
54 };
55 };
56
57 /**
58 * Bindless descriptor set state for a single descriptor set.
59 */
60 struct fd6_descriptor_set {
61 /**
62 * Pre-baked descriptor state, updated when image/SSBO is bound
63 */
64 uint32_t descriptor[IR3_BINDLESS_DESC_COUNT][FDL6_TEX_CONST_DWORDS];
65
66 /**
67 * The current seqn of the backed in resource, for detecting if the
68 * resource has been rebound
69 */
70 uint16_t seqno[IR3_BINDLESS_DESC_COUNT];
71
72 /**
73 * Current GPU copy of the desciptor set
74 */
75 struct fd_bo *bo;
76 };
77
78 static inline void
fd6_descriptor_set_invalidate(struct fd6_descriptor_set * set)79 fd6_descriptor_set_invalidate(struct fd6_descriptor_set *set)
80 {
81 if (!set->bo)
82 return;
83 fd_bo_del(set->bo);
84 set->bo = NULL;
85 }
86
87 struct fd6_context {
88 struct fd_context base;
89
90 /* Two buffers related to hw binning / visibility stream (VSC).
91 * Compared to previous generations
92 * (1) we cannot specify individual buffers per VSC, instead
93 * just a pitch and base address
94 * (2) there is a second smaller buffer.. we also stash
95 * VSC_BIN_SIZE at end of 2nd buffer.
96 */
97 struct fd_bo *vsc_draw_strm, *vsc_prim_strm;
98
99 unsigned vsc_draw_strm_pitch, vsc_prim_strm_pitch;
100
101 /* The 'control' mem BO is used for various housekeeping
102 * functions. See 'struct fd6_control'
103 */
104 struct fd_bo *control_mem;
105 uint32_t seqno;
106
107 /* pre-baked stateobj for stream-out disable: */
108 struct fd_ringbuffer *streamout_disable_stateobj;
109
110 /* pre-baked stateobj for sample-locations disable: */
111 struct fd_ringbuffer *sample_locations_disable_stateobj;
112
113 /* storage for ctx->last.key: */
114 struct ir3_shader_key last_key;
115
116 /* Is there current VS driver-param state set? */
117 bool has_dp_state;
118
119 /* cached stateobjs to avoid hashtable lookup when not dirty: */
120 const struct fd6_program_state *prog;
121
122 /* We expect to see a finite # of unique border-color entry values,
123 * which are a function of the color value and (to a limited degree)
124 * the border color format. These unique border-color entry values
125 * get populated into a global border-color buffer, and a hash-table
126 * is used to map to the matching entry in the table.
127 */
128 struct hash_table *bcolor_cache;
129 struct fd_bo *bcolor_mem;
130
131 struct util_idalloc tex_ids;
132 struct hash_table *tex_cache;
133 bool tex_cache_needs_invalidate;
134
135 /**
136 * Descriptor sets for 3d shader stages
137 */
138 struct fd6_descriptor_set descriptor_sets[5] dt;
139
140 /**
141 * Descriptor set for compute shaders
142 */
143 struct fd6_descriptor_set cs_descriptor_set dt;
144
145 struct {
146 /* previous lrz state, which is a function of multiple gallium
147 * stateobjs, but doesn't necessarily change as frequently:
148 */
149 struct fd6_lrz_state lrz;
150 } last;
151 };
152
153 static inline struct fd6_context *
fd6_context(struct fd_context * ctx)154 fd6_context(struct fd_context *ctx)
155 {
156 return (struct fd6_context *)ctx;
157 }
158
159 template <chip CHIP>
160 struct pipe_context *fd6_context_create(struct pipe_screen *pscreen, void *priv,
161 unsigned flags);
162
163 /* This struct defines the layout of the fd6_context::control buffer: */
164 struct fd6_control {
165 uint32_t seqno; /* seqno for async CP_EVENT_WRITE, etc */
166 uint32_t _pad0;
167 volatile uint32_t vsc_overflow;
168 uint32_t _pad1[5];
169
170 /* scratch space for VPC_SO[i].FLUSH_BASE_LO/HI, start on 32 byte boundary. */
171 struct {
172 uint32_t offset;
173 uint32_t pad[7];
174 } flush_base[4];
175 };
176
177 #define control_ptr(fd6_ctx, member) \
178 (fd6_ctx)->control_mem, offsetof(struct fd6_control, member), 0, 0
179
180 static inline void
emit_marker6(struct fd_ringbuffer * ring,int scratch_idx)181 emit_marker6(struct fd_ringbuffer *ring, int scratch_idx)
182 {
183 extern int32_t marker_cnt;
184 unsigned reg = REG_A6XX_CP_SCRATCH_REG(scratch_idx);
185 if (__EMIT_MARKER) {
186 OUT_WFI5(ring);
187 OUT_PKT4(ring, reg, 1);
188 OUT_RING(ring, p_atomic_inc_return(&marker_cnt));
189 }
190 }
191
192 struct fd6_vertex_stateobj {
193 struct fd_vertex_stateobj base;
194 struct fd_ringbuffer *stateobj;
195 };
196
197 static inline struct fd6_vertex_stateobj *
fd6_vertex_stateobj(void * p)198 fd6_vertex_stateobj(void *p)
199 {
200 return (struct fd6_vertex_stateobj *)p;
201 }
202
203 #endif /* FD6_CONTEXT_H_ */
204