1 /*
2 * © Copyright 2018 Alyssa Rosenzweig
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 * SOFTWARE.
22 *
23 */
24
25 #ifndef __BUILDER_H__
26 #define __BUILDER_H__
27
28 #define _LARGEFILE64_SOURCE 1
29 #include <sys/mman.h>
30 #include <assert.h>
31 #include "pan_resource.h"
32 #include "pan_job.h"
33 #include "pan_blend_cso.h"
34 #include "pan_encoder.h"
35 #include "pan_texture.h"
36
37 #include "pipe/p_compiler.h"
38 #include "pipe/p_config.h"
39 #include "pipe/p_context.h"
40 #include "pipe/p_defines.h"
41 #include "pipe/p_format.h"
42 #include "pipe/p_screen.h"
43 #include "pipe/p_state.h"
44 #include "util/u_blitter.h"
45 #include "util/hash_table.h"
46 #include "util/simple_mtx.h"
47
48 #include "midgard/midgard_compile.h"
49 #include "compiler/shader_enums.h"
50
51 /* Forward declare to avoid extra header dep */
52 struct prim_convert_context;
53
54 #define SET_BIT(lval, bit, cond) \
55 if (cond) \
56 lval |= (bit); \
57 else \
58 lval &= ~(bit);
59
60 /* Dirty tracking flags. 3D is for general 3D state. Shader flags are
61 * per-stage. Renderer refers to Renderer State Descriptors. Vertex refers to
62 * vertex attributes/elements. */
63
64 enum pan_dirty_3d {
65 PAN_DIRTY_VIEWPORT = BITFIELD_BIT(0),
66 PAN_DIRTY_SCISSOR = BITFIELD_BIT(1),
67 PAN_DIRTY_VERTEX = BITFIELD_BIT(2),
68 PAN_DIRTY_PARAMS = BITFIELD_BIT(3),
69 PAN_DIRTY_DRAWID = BITFIELD_BIT(4),
70 PAN_DIRTY_TLS_SIZE = BITFIELD_BIT(5),
71 };
72
73 enum pan_dirty_shader {
74 PAN_DIRTY_STAGE_RENDERER = BITFIELD_BIT(0),
75 PAN_DIRTY_STAGE_TEXTURE = BITFIELD_BIT(1),
76 PAN_DIRTY_STAGE_SAMPLER = BITFIELD_BIT(2),
77 PAN_DIRTY_STAGE_IMAGE = BITFIELD_BIT(3),
78 PAN_DIRTY_STAGE_CONST = BITFIELD_BIT(4),
79 PAN_DIRTY_STAGE_SSBO = BITFIELD_BIT(5),
80 };
81
82 struct panfrost_constant_buffer {
83 struct pipe_constant_buffer cb[PIPE_MAX_CONSTANT_BUFFERS];
84 uint32_t enabled_mask;
85 };
86
87 struct panfrost_query {
88 /* Passthrough from Gallium */
89 unsigned type;
90 unsigned index;
91
92 /* For computed queries. 64-bit to prevent overflow */
93 struct {
94 uint64_t start;
95 uint64_t end;
96 };
97
98 /* Memory for the GPU to writeback the value of the query */
99 struct pipe_resource *rsrc;
100
101 /* Whether an occlusion query is for a MSAA framebuffer */
102 bool msaa;
103 };
104
105 struct pipe_fence_handle {
106 struct pipe_reference reference;
107 uint32_t syncobj;
108 bool signaled;
109 };
110
111 struct panfrost_streamout_target {
112 struct pipe_stream_output_target base;
113 uint32_t offset;
114 };
115
116 struct panfrost_streamout {
117 struct pipe_stream_output_target *targets[PIPE_MAX_SO_BUFFERS];
118 unsigned num_targets;
119 };
120
121 struct panfrost_context {
122 /* Gallium context */
123 struct pipe_context base;
124
125 /* Dirty global state */
126 enum pan_dirty_3d dirty;
127
128 /* Per shader stage dirty state */
129 enum pan_dirty_shader dirty_shader[PIPE_SHADER_TYPES];
130
131 /* Unowned pools, so manage yourself. */
132 struct panfrost_pool descs, shaders;
133
134 /* Sync obj used to keep track of in-flight jobs. */
135 uint32_t syncobj;
136
137 /* Set of 32 batches. When the set is full, the LRU entry (the batch
138 * with the smallest seqnum) is flushed to free a slot.
139 */
140 struct {
141 uint64_t seqnum;
142 struct panfrost_batch slots[PAN_MAX_BATCHES];
143
144 /** Set of active batches for faster traversal */
145 BITSET_DECLARE(active, PAN_MAX_BATCHES);
146 } batches;
147
148 /* Map from resources to panfrost_batches */
149 struct hash_table *writers;
150
151 /* Bound job batch */
152 struct panfrost_batch *batch;
153
154 /* Within a launch_grid call.. */
155 const struct pipe_grid_info *compute_grid;
156
157 struct pipe_framebuffer_state pipe_framebuffer;
158 struct panfrost_streamout streamout;
159
160 bool active_queries;
161 uint64_t prims_generated;
162 uint64_t tf_prims_generated;
163 struct panfrost_query *occlusion_query;
164
165 bool indirect_draw;
166 unsigned drawid;
167 unsigned vertex_count;
168 unsigned instance_count;
169 unsigned offset_start;
170 unsigned base_vertex;
171 unsigned base_instance;
172 mali_ptr first_vertex_sysval_ptr;
173 mali_ptr base_vertex_sysval_ptr;
174 mali_ptr base_instance_sysval_ptr;
175 enum pipe_prim_type active_prim;
176
177 /* If instancing is enabled, vertex count padded for instance; if
178 * it is disabled, just equal to plain vertex count */
179 unsigned padded_count;
180
181 struct panfrost_constant_buffer constant_buffer[PIPE_SHADER_TYPES];
182 struct panfrost_rasterizer *rasterizer;
183 struct panfrost_shader_variants *shader[PIPE_SHADER_TYPES];
184 struct panfrost_vertex_state *vertex;
185
186 struct pipe_vertex_buffer vertex_buffers[PIPE_MAX_ATTRIBS];
187 uint32_t vb_mask;
188
189 struct pipe_shader_buffer ssbo[PIPE_SHADER_TYPES][PIPE_MAX_SHADER_BUFFERS];
190 uint32_t ssbo_mask[PIPE_SHADER_TYPES];
191
192 struct pipe_image_view images[PIPE_SHADER_TYPES][PIPE_MAX_SHADER_IMAGES];
193 uint32_t image_mask[PIPE_SHADER_TYPES];
194
195 struct panfrost_sampler_state *samplers[PIPE_SHADER_TYPES][PIPE_MAX_SAMPLERS];
196 unsigned sampler_count[PIPE_SHADER_TYPES];
197
198 struct panfrost_sampler_view *sampler_views[PIPE_SHADER_TYPES][PIPE_MAX_SHADER_SAMPLER_VIEWS];
199 unsigned sampler_view_count[PIPE_SHADER_TYPES];
200
201 struct blitter_context *blitter;
202
203 struct panfrost_blend_state *blend;
204
205 struct pipe_viewport_state pipe_viewport;
206 struct pipe_scissor_state scissor;
207 struct pipe_blend_color blend_color;
208 struct panfrost_zsa_state *depth_stencil;
209 struct pipe_stencil_ref stencil_ref;
210 uint16_t sample_mask;
211 unsigned min_samples;
212
213 struct panfrost_query *cond_query;
214 bool cond_cond;
215 enum pipe_render_cond_flag cond_mode;
216
217 bool is_noop;
218
219 /* Mask of active render targets */
220 uint8_t fb_rt_mask;
221 };
222
223 /* Corresponds to the CSO */
224
225 struct panfrost_rasterizer;
226
227 /* Linked varyings */
228 struct pan_linkage {
229 /* If the upload is owned by the CSO instead
230 * of the pool, the referenced BO. Else,
231 * NULL. */
232 struct panfrost_bo *bo;
233
234 /* Uploaded attribute descriptors */
235 mali_ptr producer, consumer;
236
237 /* Varyings buffers required */
238 uint32_t present;
239
240 /* Per-vertex stride for general varying buffer */
241 uint32_t stride;
242 };
243
244 #define RSD_WORDS 16
245
246 /* Variants bundle together to form the backing CSO, bundling multiple
247 * shaders with varying emulated features baked in */
248
249 /* A shader state corresponds to the actual, current variant of the shader */
250 struct panfrost_shader_state {
251 /* Compiled, mapped descriptor, ready for the hardware */
252 bool compiled;
253
254 /* Respectively, shader binary and Renderer State Descriptor */
255 struct panfrost_pool_ref bin, state;
256
257 /* For fragment shaders, a prepared (but not uploaded RSD) */
258 uint32_t partial_rsd[RSD_WORDS];
259
260 struct pan_shader_info info;
261
262 /* Linked varyings, for non-separable programs */
263 struct pan_linkage linkage;
264
265 struct pipe_stream_output_info stream_output;
266 uint64_t so_mask;
267
268 /* Variants */
269 enum pipe_format rt_formats[8];
270 unsigned nr_cbufs;
271
272 /* Mask of state that dirties the sysvals */
273 unsigned dirty_3d, dirty_shader;
274 };
275
276 /* A collection of varyings (the CSO) */
277 struct panfrost_shader_variants {
278 /* A panfrost_shader_variants can represent a shader for
279 * either graphics or compute */
280
281 bool is_compute;
282
283 union {
284 struct pipe_shader_state base;
285 struct pipe_compute_state cbase;
286 };
287
288 /** Lock for the variants array */
289 simple_mtx_t lock;
290
291 struct panfrost_shader_state *variants;
292 unsigned variant_space;
293
294 unsigned variant_count;
295
296 /* The current active variant */
297 unsigned active_variant;
298 };
299
300 struct pan_vertex_buffer {
301 unsigned vbi;
302 unsigned divisor;
303 };
304
305 struct panfrost_vertex_state {
306 unsigned num_elements;
307
308 /* buffers corresponds to attribute buffer, element_buffers corresponds
309 * to an index in buffers for each vertex element */
310 struct pan_vertex_buffer buffers[PIPE_MAX_ATTRIBS];
311 unsigned element_buffer[PIPE_MAX_ATTRIBS];
312 unsigned nr_bufs;
313
314 struct pipe_vertex_element pipe[PIPE_MAX_ATTRIBS];
315 unsigned formats[PIPE_MAX_ATTRIBS];
316 };
317
318 struct panfrost_zsa_state;
319 struct panfrost_sampler_state;
320 struct panfrost_sampler_view;
321
322 static inline struct panfrost_context *
pan_context(struct pipe_context * pcontext)323 pan_context(struct pipe_context *pcontext)
324 {
325 return (struct panfrost_context *) pcontext;
326 }
327
328 static inline struct panfrost_streamout_target *
pan_so_target(struct pipe_stream_output_target * target)329 pan_so_target(struct pipe_stream_output_target *target)
330 {
331 return (struct panfrost_streamout_target *)target;
332 }
333
334 static inline struct panfrost_shader_state *
panfrost_get_shader_state(struct panfrost_context * ctx,enum pipe_shader_type st)335 panfrost_get_shader_state(struct panfrost_context *ctx,
336 enum pipe_shader_type st)
337 {
338 struct panfrost_shader_variants *all = ctx->shader[st];
339
340 if (!all)
341 return NULL;
342
343 return &all->variants[all->active_variant];
344 }
345
346 struct pipe_context *
347 panfrost_create_context(struct pipe_screen *screen, void *priv, unsigned flags);
348
349 bool
350 panfrost_writes_point_size(struct panfrost_context *ctx);
351
352 struct panfrost_ptr
353 panfrost_vertex_tiler_job(struct panfrost_context *ctx, bool is_tiler);
354
355 void
356 panfrost_flush(
357 struct pipe_context *pipe,
358 struct pipe_fence_handle **fence,
359 unsigned flags);
360
361 bool
362 panfrost_render_condition_check(struct panfrost_context *ctx);
363
364 void
365 panfrost_shader_compile(struct pipe_screen *pscreen,
366 struct panfrost_pool *shader_pool,
367 struct panfrost_pool *desc_pool,
368 enum pipe_shader_ir ir_type,
369 const void *ir,
370 gl_shader_stage stage,
371 struct panfrost_shader_state *state);
372
373 void
374 panfrost_analyze_sysvals(struct panfrost_shader_state *ss);
375
376 mali_ptr
377 panfrost_get_index_buffer_bounded(struct panfrost_batch *batch,
378 const struct pipe_draw_info *info,
379 const struct pipe_draw_start_count_bias *draw,
380 unsigned *min_index, unsigned *max_index);
381
382 /* Instancing */
383
384 mali_ptr
385 panfrost_vertex_buffer_address(struct panfrost_context *ctx, unsigned i);
386
387 /* Compute */
388
389 void
390 panfrost_compute_context_init(struct pipe_context *pctx);
391
392 static inline void
panfrost_dirty_state_all(struct panfrost_context * ctx)393 panfrost_dirty_state_all(struct panfrost_context *ctx)
394 {
395 ctx->dirty = ~0;
396
397 for (unsigned i = 0; i < PIPE_SHADER_TYPES; ++i)
398 ctx->dirty_shader[i] = ~0;
399 }
400
401 static inline void
panfrost_clean_state_3d(struct panfrost_context * ctx)402 panfrost_clean_state_3d(struct panfrost_context *ctx)
403 {
404 ctx->dirty = 0;
405
406 for (unsigned i = 0; i < PIPE_SHADER_TYPES; ++i) {
407 if (i != PIPE_SHADER_COMPUTE)
408 ctx->dirty_shader[i] = 0;
409 }
410 }
411
412 #endif
413