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1 /*
2  * Copyright 2015 Advanced Micro Devices, Inc.
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  * Authors:
24  *  Nicolai Hähnle <nicolai.haehnle@amd.com>
25  *
26  */
27 
28 #ifndef R600_QUERY_H
29 #define R600_QUERY_H
30 
31 #include "pipe/p_defines.h"
32 #include "pipe/p_state.h"
33 #include "util/list.h"
34 
35 struct pipe_context;
36 struct pipe_query;
37 struct pipe_resource;
38 
39 struct r600_common_context;
40 struct r600_common_screen;
41 struct r600_query;
42 struct r600_query_hw;
43 struct r600_resource;
44 
45 enum {
46 	R600_QUERY_DRAW_CALLS = PIPE_QUERY_DRIVER_SPECIFIC,
47 	R600_QUERY_SPILL_DRAW_CALLS,
48 	R600_QUERY_COMPUTE_CALLS,
49 	R600_QUERY_SPILL_COMPUTE_CALLS,
50 	R600_QUERY_DMA_CALLS,
51 	R600_QUERY_CP_DMA_CALLS,
52 	R600_QUERY_NUM_VS_FLUSHES,
53 	R600_QUERY_NUM_PS_FLUSHES,
54 	R600_QUERY_NUM_CS_FLUSHES,
55 	R600_QUERY_NUM_FB_CACHE_FLUSHES,
56 	R600_QUERY_NUM_L2_INVALIDATES,
57 	R600_QUERY_NUM_L2_WRITEBACKS,
58 	R600_QUERY_REQUESTED_VRAM,
59 	R600_QUERY_REQUESTED_GTT,
60 	R600_QUERY_MAPPED_VRAM,
61 	R600_QUERY_MAPPED_GTT,
62 	R600_QUERY_BUFFER_WAIT_TIME,
63 	R600_QUERY_NUM_GFX_IBS,
64 	R600_QUERY_NUM_SDMA_IBS,
65 	R600_QUERY_NUM_BYTES_MOVED,
66 	R600_QUERY_NUM_EVICTIONS,
67 	R600_QUERY_VRAM_USAGE,
68 	R600_QUERY_GTT_USAGE,
69 	R600_QUERY_GPU_TEMPERATURE,
70 	R600_QUERY_CURRENT_GPU_SCLK,
71 	R600_QUERY_CURRENT_GPU_MCLK,
72 	R600_QUERY_GPU_LOAD,
73 	R600_QUERY_GPU_SHADERS_BUSY,
74 	R600_QUERY_NUM_COMPILATIONS,
75 	R600_QUERY_NUM_SHADERS_CREATED,
76 	R600_QUERY_BACK_BUFFER_PS_DRAW_RATIO,
77 	R600_QUERY_NUM_SHADER_CACHE_HITS,
78 	R600_QUERY_GPIN_ASIC_ID,
79 	R600_QUERY_GPIN_NUM_SIMD,
80 	R600_QUERY_GPIN_NUM_RB,
81 	R600_QUERY_GPIN_NUM_SPI,
82 	R600_QUERY_GPIN_NUM_SE,
83 
84 	R600_QUERY_FIRST_PERFCOUNTER = PIPE_QUERY_DRIVER_SPECIFIC + 100,
85 };
86 
87 enum {
88 	R600_QUERY_GROUP_GPIN = 0,
89 	R600_NUM_SW_QUERY_GROUPS
90 };
91 
92 struct r600_query_ops {
93 	void (*destroy)(struct r600_common_context *, struct r600_query *);
94 	bool (*begin)(struct r600_common_context *, struct r600_query *);
95 	bool (*end)(struct r600_common_context *, struct r600_query *);
96 	bool (*get_result)(struct r600_common_context *,
97 			   struct r600_query *, bool wait,
98 			   union pipe_query_result *result);
99 	void (*get_result_resource)(struct r600_common_context *,
100 				    struct r600_query *, bool wait,
101 				    enum pipe_query_value_type result_type,
102 				    int index,
103 				    struct pipe_resource *resource,
104 				    unsigned offset);
105 };
106 
107 struct r600_query {
108 	struct r600_query_ops *ops;
109 
110 	/* The type of query */
111 	unsigned type;
112 };
113 
114 enum {
115 	R600_QUERY_HW_FLAG_NO_START = (1 << 0),
116 	/* gap */
117 	/* whether begin_query doesn't clear the result */
118 	R600_QUERY_HW_FLAG_BEGIN_RESUMES = (1 << 2),
119 };
120 
121 struct r600_query_hw_ops {
122 	bool (*prepare_buffer)(struct r600_common_context *,
123 			       struct r600_query_hw *,
124 			       struct r600_resource *);
125 	void (*emit_start)(struct r600_common_context *,
126 			   struct r600_query_hw *,
127 			   struct r600_resource *buffer, uint64_t va);
128 	void (*emit_stop)(struct r600_common_context *,
129 			  struct r600_query_hw *,
130 			  struct r600_resource *buffer, uint64_t va);
131 	void (*clear_result)(struct r600_query_hw *, union pipe_query_result *);
132 	void (*add_result)(struct r600_common_context *ctx,
133 			   struct r600_query_hw *, void *buffer,
134 			   union pipe_query_result *result);
135 };
136 
137 struct r600_query_buffer {
138 	/* The buffer where query results are stored. */
139 	struct r600_resource		*buf;
140 	/* Offset of the next free result after current query data */
141 	unsigned			results_end;
142 	/* If a query buffer is full, a new buffer is created and the old one
143 	 * is put in here. When we calculate the result, we sum up the samples
144 	 * from all buffers. */
145 	struct r600_query_buffer	*previous;
146 };
147 
148 struct r600_query_hw {
149 	struct r600_query b;
150 	struct r600_query_hw_ops *ops;
151 	unsigned flags;
152 
153 	/* The query buffer and how many results are in it. */
154 	struct r600_query_buffer buffer;
155 	/* Size of the result in memory for both begin_query and end_query,
156 	 * this can be one or two numbers, or it could even be a size of a structure. */
157 	unsigned result_size;
158 	/* The number of dwords for begin_query or end_query. */
159 	unsigned num_cs_dw_begin;
160 	unsigned num_cs_dw_end;
161 	/* Linked list of queries */
162 	struct list_head list;
163 	/* For transform feedback: which stream the query is for */
164 	unsigned stream;
165 };
166 
167 bool r600_query_hw_init(struct r600_common_context *rctx,
168 			struct r600_query_hw *query);
169 void r600_query_hw_destroy(struct r600_common_context *rctx,
170 			   struct r600_query *rquery);
171 bool r600_query_hw_begin(struct r600_common_context *rctx,
172 			 struct r600_query *rquery);
173 bool r600_query_hw_end(struct r600_common_context *rctx,
174 		       struct r600_query *rquery);
175 bool r600_query_hw_get_result(struct r600_common_context *rctx,
176 			      struct r600_query *rquery,
177 			      bool wait,
178 			      union pipe_query_result *result);
179 
180 /* Performance counters */
181 enum {
182 	/* This block is part of the shader engine */
183 	R600_PC_BLOCK_SE = (1 << 0),
184 
185 	/* Expose per-instance groups instead of summing all instances (within
186 	 * an SE). */
187 	R600_PC_BLOCK_INSTANCE_GROUPS = (1 << 1),
188 
189 	/* Expose per-SE groups instead of summing instances across SEs. */
190 	R600_PC_BLOCK_SE_GROUPS = (1 << 2),
191 
192 	/* Shader block */
193 	R600_PC_BLOCK_SHADER = (1 << 3),
194 
195 	/* Non-shader block with perfcounters windowed by shaders. */
196 	R600_PC_BLOCK_SHADER_WINDOWED = (1 << 4),
197 };
198 
199 /* Describes a hardware block with performance counters. Multiple instances of
200  * each block, possibly per-SE, may exist on the chip. Depending on the block
201  * and on the user's configuration, we either
202  *  (a) expose every instance as a performance counter group,
203  *  (b) expose a single performance counter group that reports the sum over all
204  *      instances, or
205  *  (c) expose one performance counter group per instance, but summed over all
206  *      shader engines.
207  */
208 struct r600_perfcounter_block {
209 	const char *basename;
210 	unsigned flags;
211 	unsigned num_counters;
212 	unsigned num_selectors;
213 	unsigned num_instances;
214 
215 	unsigned num_groups;
216 	char *group_names;
217 	unsigned group_name_stride;
218 
219 	char *selector_names;
220 	unsigned selector_name_stride;
221 
222 	void *data;
223 };
224 
225 struct r600_perfcounters {
226 	unsigned num_groups;
227 	unsigned num_blocks;
228 	struct r600_perfcounter_block *blocks;
229 
230 	unsigned num_start_cs_dwords;
231 	unsigned num_stop_cs_dwords;
232 	unsigned num_instance_cs_dwords;
233 	unsigned num_shaders_cs_dwords;
234 
235 	unsigned num_shader_types;
236 	const char * const *shader_type_suffixes;
237 	const unsigned *shader_type_bits;
238 
239 	void (*get_size)(struct r600_perfcounter_block *,
240 			 unsigned count, unsigned *selectors,
241 			 unsigned *num_select_dw, unsigned *num_read_dw);
242 
243 	void (*emit_instance)(struct r600_common_context *,
244 			      int se, int instance);
245 	void (*emit_shaders)(struct r600_common_context *, unsigned shaders);
246 	void (*emit_select)(struct r600_common_context *,
247 			    struct r600_perfcounter_block *,
248 			    unsigned count, unsigned *selectors);
249 	void (*emit_start)(struct r600_common_context *,
250 			  struct r600_resource *buffer, uint64_t va);
251 	void (*emit_stop)(struct r600_common_context *,
252 			  struct r600_resource *buffer, uint64_t va);
253 	void (*emit_read)(struct r600_common_context *,
254 			  struct r600_perfcounter_block *,
255 			  unsigned count, unsigned *selectors,
256 			  struct r600_resource *buffer, uint64_t va);
257 
258 	void (*cleanup)(struct r600_common_screen *);
259 
260 	bool separate_se;
261 	bool separate_instance;
262 };
263 
264 struct pipe_query *r600_create_batch_query(struct pipe_context *ctx,
265 					   unsigned num_queries,
266 					   unsigned *query_types);
267 
268 int r600_get_perfcounter_info(struct r600_common_screen *,
269 			      unsigned index,
270 			      struct pipe_driver_query_info *info);
271 int r600_get_perfcounter_group_info(struct r600_common_screen *,
272 				    unsigned index,
273 				    struct pipe_driver_query_group_info *info);
274 
275 bool r600_perfcounters_init(struct r600_perfcounters *, unsigned num_blocks);
276 void r600_perfcounters_add_block(struct r600_common_screen *,
277 				 struct r600_perfcounters *,
278 				 const char *name, unsigned flags,
279 				 unsigned counters, unsigned selectors,
280 				 unsigned instances, void *data);
281 void r600_perfcounters_do_destroy(struct r600_perfcounters *);
282 void r600_query_hw_reset_buffers(struct r600_common_context *rctx,
283 				 struct r600_query_hw *query);
284 
285 struct r600_qbo_state {
286 	void *saved_compute;
287 	struct pipe_constant_buffer saved_const0;
288 	struct pipe_shader_buffer saved_ssbo[3];
289 };
290 
291 #endif /* R600_QUERY_H */
292