2 * Copyright 2013 Advanced Micro Devices, Inc.
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:
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
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
23 * Authors: Marek Olšák <maraeo@gmail.com>
27 #include "r600_pipe_common.h"
30 #include "util/u_memory.h"
32 static void r600_set_streamout_enable(struct r600_common_context
*rctx
, bool enable
);
34 static struct pipe_stream_output_target
*
35 r600_create_so_target(struct pipe_context
*ctx
,
36 struct pipe_resource
*buffer
,
37 unsigned buffer_offset
,
40 struct r600_common_context
*rctx
= (struct r600_common_context
*)ctx
;
41 struct r600_so_target
*t
;
42 struct r600_resource
*rbuffer
= (struct r600_resource
*)buffer
;
44 t
= CALLOC_STRUCT(r600_so_target
);
49 u_suballocator_alloc(rctx
->allocator_so_filled_size
, 4,
50 &t
->buf_filled_size_offset
,
51 (struct pipe_resource
**)&t
->buf_filled_size
);
52 if (!t
->buf_filled_size
) {
57 t
->b
.reference
.count
= 1;
59 pipe_resource_reference(&t
->b
.buffer
, buffer
);
60 t
->b
.buffer_offset
= buffer_offset
;
61 t
->b
.buffer_size
= buffer_size
;
63 util_range_add(&rbuffer
->valid_buffer_range
, buffer_offset
,
64 buffer_offset
+ buffer_size
);
68 static void r600_so_target_destroy(struct pipe_context
*ctx
,
69 struct pipe_stream_output_target
*target
)
71 struct r600_so_target
*t
= (struct r600_so_target
*)target
;
72 pipe_resource_reference(&t
->b
.buffer
, NULL
);
73 pipe_resource_reference((struct pipe_resource
**)&t
->buf_filled_size
, NULL
);
77 void r600_streamout_buffers_dirty(struct r600_common_context
*rctx
)
79 struct r600_atom
*begin
= &rctx
->streamout
.begin_atom
;
80 unsigned num_bufs
= util_bitcount(rctx
->streamout
.enabled_mask
);
81 unsigned num_bufs_appended
= util_bitcount(rctx
->streamout
.enabled_mask
&
82 rctx
->streamout
.append_bitmask
);
87 rctx
->streamout
.num_dw_for_end
=
88 12 + /* flush_vgt_streamout */
89 num_bufs
* 11; /* STRMOUT_BUFFER_UPDATE, BUFFER_SIZE */
91 begin
->num_dw
= 12; /* flush_vgt_streamout */
93 if (rctx
->chip_class
>= SI
) {
94 begin
->num_dw
+= num_bufs
* 4; /* SET_CONTEXT_REG */
96 begin
->num_dw
+= num_bufs
* 7; /* SET_CONTEXT_REG */
98 if (rctx
->family
>= CHIP_RS780
&& rctx
->family
<= CHIP_RV740
)
99 begin
->num_dw
+= num_bufs
* 5; /* STRMOUT_BASE_UPDATE */
103 num_bufs_appended
* 8 + /* STRMOUT_BUFFER_UPDATE */
104 (num_bufs
- num_bufs_appended
) * 6 + /* STRMOUT_BUFFER_UPDATE */
105 (rctx
->family
> CHIP_R600
&& rctx
->family
< CHIP_RS780
? 2 : 0); /* SURFACE_BASE_UPDATE */
107 rctx
->set_atom_dirty(rctx
, begin
, true);
109 r600_set_streamout_enable(rctx
, true);
112 void r600_set_streamout_targets(struct pipe_context
*ctx
,
113 unsigned num_targets
,
114 struct pipe_stream_output_target
**targets
,
115 const unsigned *offsets
)
117 struct r600_common_context
*rctx
= (struct r600_common_context
*)ctx
;
119 unsigned append_bitmask
= 0;
121 /* Stop streamout. */
122 if (rctx
->streamout
.num_targets
&& rctx
->streamout
.begin_emitted
) {
123 r600_emit_streamout_end(rctx
);
126 /* Set the new targets. */
127 for (i
= 0; i
< num_targets
; i
++) {
128 pipe_so_target_reference((struct pipe_stream_output_target
**)&rctx
->streamout
.targets
[i
], targets
[i
]);
129 r600_context_add_resource_size(ctx
, targets
[i
]->buffer
);
130 if (offsets
[i
] == ((unsigned)-1))
131 append_bitmask
|= 1 << i
;
133 for (; i
< rctx
->streamout
.num_targets
; i
++) {
134 pipe_so_target_reference((struct pipe_stream_output_target
**)&rctx
->streamout
.targets
[i
], NULL
);
137 rctx
->streamout
.enabled_mask
= (num_targets
>= 1 && targets
[0] ? 1 : 0) |
138 (num_targets
>= 2 && targets
[1] ? 2 : 0) |
139 (num_targets
>= 3 && targets
[2] ? 4 : 0) |
140 (num_targets
>= 4 && targets
[3] ? 8 : 0);
142 rctx
->streamout
.num_targets
= num_targets
;
143 rctx
->streamout
.append_bitmask
= append_bitmask
;
146 r600_streamout_buffers_dirty(rctx
);
148 rctx
->set_atom_dirty(rctx
, &rctx
->streamout
.begin_atom
, false);
149 r600_set_streamout_enable(rctx
, false);
153 static void r600_flush_vgt_streamout(struct r600_common_context
*rctx
)
155 struct radeon_winsys_cs
*cs
= rctx
->rings
.gfx
.cs
;
156 unsigned reg_strmout_cntl
;
158 /* The register is at different places on different ASICs. */
159 if (rctx
->chip_class
>= CIK
) {
160 reg_strmout_cntl
= R_0300FC_CP_STRMOUT_CNTL
;
161 } else if (rctx
->chip_class
>= EVERGREEN
) {
162 reg_strmout_cntl
= R_0084FC_CP_STRMOUT_CNTL
;
164 reg_strmout_cntl
= R_008490_CP_STRMOUT_CNTL
;
167 if (rctx
->chip_class
>= CIK
) {
168 cik_write_uconfig_reg(cs
, reg_strmout_cntl
, 0);
170 r600_write_config_reg(cs
, reg_strmout_cntl
, 0);
173 radeon_emit(cs
, PKT3(PKT3_EVENT_WRITE
, 0, 0));
174 radeon_emit(cs
, EVENT_TYPE(EVENT_TYPE_SO_VGTSTREAMOUT_FLUSH
) | EVENT_INDEX(0));
176 radeon_emit(cs
, PKT3(PKT3_WAIT_REG_MEM
, 5, 0));
177 radeon_emit(cs
, WAIT_REG_MEM_EQUAL
); /* wait until the register is equal to the reference value */
178 radeon_emit(cs
, reg_strmout_cntl
>> 2); /* register */
180 radeon_emit(cs
, S_008490_OFFSET_UPDATE_DONE(1)); /* reference value */
181 radeon_emit(cs
, S_008490_OFFSET_UPDATE_DONE(1)); /* mask */
182 radeon_emit(cs
, 4); /* poll interval */
185 static void r600_emit_streamout_begin(struct r600_common_context
*rctx
, struct r600_atom
*atom
)
187 struct radeon_winsys_cs
*cs
= rctx
->rings
.gfx
.cs
;
188 struct r600_so_target
**t
= rctx
->streamout
.targets
;
189 unsigned *stride_in_dw
= rctx
->streamout
.stride_in_dw
;
190 unsigned i
, update_flags
= 0;
192 r600_flush_vgt_streamout(rctx
);
194 for (i
= 0; i
< rctx
->streamout
.num_targets
; i
++) {
198 t
[i
]->stride_in_dw
= stride_in_dw
[i
];
200 if (rctx
->chip_class
>= SI
) {
201 /* SI binds streamout buffers as shader resources.
202 * VGT only counts primitives and tells the shader
203 * through SGPRs what to do. */
204 r600_write_context_reg_seq(cs
, R_028AD0_VGT_STRMOUT_BUFFER_SIZE_0
+ 16*i
, 2);
205 radeon_emit(cs
, (t
[i
]->b
.buffer_offset
+
206 t
[i
]->b
.buffer_size
) >> 2); /* BUFFER_SIZE (in DW) */
207 radeon_emit(cs
, stride_in_dw
[i
]); /* VTX_STRIDE (in DW) */
209 uint64_t va
= r600_resource(t
[i
]->b
.buffer
)->gpu_address
;
211 update_flags
|= SURFACE_BASE_UPDATE_STRMOUT(i
);
213 r600_write_context_reg_seq(cs
, R_028AD0_VGT_STRMOUT_BUFFER_SIZE_0
+ 16*i
, 3);
214 radeon_emit(cs
, (t
[i
]->b
.buffer_offset
+
215 t
[i
]->b
.buffer_size
) >> 2); /* BUFFER_SIZE (in DW) */
216 radeon_emit(cs
, stride_in_dw
[i
]); /* VTX_STRIDE (in DW) */
217 radeon_emit(cs
, va
>> 8); /* BUFFER_BASE */
219 r600_emit_reloc(rctx
, &rctx
->rings
.gfx
, r600_resource(t
[i
]->b
.buffer
),
220 RADEON_USAGE_WRITE
, RADEON_PRIO_SHADER_RESOURCE_RW
);
222 /* R7xx requires this packet after updating BUFFER_BASE.
223 * Without this, R7xx locks up. */
224 if (rctx
->family
>= CHIP_RS780
&& rctx
->family
<= CHIP_RV740
) {
225 radeon_emit(cs
, PKT3(PKT3_STRMOUT_BASE_UPDATE
, 1, 0));
227 radeon_emit(cs
, va
>> 8);
229 r600_emit_reloc(rctx
, &rctx
->rings
.gfx
, r600_resource(t
[i
]->b
.buffer
),
230 RADEON_USAGE_WRITE
, RADEON_PRIO_SHADER_RESOURCE_RW
);
234 if (rctx
->streamout
.append_bitmask
& (1 << i
) && t
[i
]->buf_filled_size_valid
) {
235 uint64_t va
= t
[i
]->buf_filled_size
->gpu_address
+
236 t
[i
]->buf_filled_size_offset
;
239 radeon_emit(cs
, PKT3(PKT3_STRMOUT_BUFFER_UPDATE
, 4, 0));
240 radeon_emit(cs
, STRMOUT_SELECT_BUFFER(i
) |
241 STRMOUT_OFFSET_SOURCE(STRMOUT_OFFSET_FROM_MEM
)); /* control */
242 radeon_emit(cs
, 0); /* unused */
243 radeon_emit(cs
, 0); /* unused */
244 radeon_emit(cs
, va
); /* src address lo */
245 radeon_emit(cs
, va
>> 32); /* src address hi */
247 r600_emit_reloc(rctx
, &rctx
->rings
.gfx
, t
[i
]->buf_filled_size
,
248 RADEON_USAGE_READ
, RADEON_PRIO_MIN
);
250 /* Start from the beginning. */
251 radeon_emit(cs
, PKT3(PKT3_STRMOUT_BUFFER_UPDATE
, 4, 0));
252 radeon_emit(cs
, STRMOUT_SELECT_BUFFER(i
) |
253 STRMOUT_OFFSET_SOURCE(STRMOUT_OFFSET_FROM_PACKET
)); /* control */
254 radeon_emit(cs
, 0); /* unused */
255 radeon_emit(cs
, 0); /* unused */
256 radeon_emit(cs
, t
[i
]->b
.buffer_offset
>> 2); /* buffer offset in DW */
257 radeon_emit(cs
, 0); /* unused */
261 if (rctx
->family
> CHIP_R600
&& rctx
->family
< CHIP_RV770
) {
262 radeon_emit(cs
, PKT3(PKT3_SURFACE_BASE_UPDATE
, 0, 0));
263 radeon_emit(cs
, update_flags
);
265 rctx
->streamout
.begin_emitted
= true;
268 void r600_emit_streamout_end(struct r600_common_context
*rctx
)
270 struct radeon_winsys_cs
*cs
= rctx
->rings
.gfx
.cs
;
271 struct r600_so_target
**t
= rctx
->streamout
.targets
;
275 r600_flush_vgt_streamout(rctx
);
277 for (i
= 0; i
< rctx
->streamout
.num_targets
; i
++) {
281 va
= t
[i
]->buf_filled_size
->gpu_address
+ t
[i
]->buf_filled_size_offset
;
282 radeon_emit(cs
, PKT3(PKT3_STRMOUT_BUFFER_UPDATE
, 4, 0));
283 radeon_emit(cs
, STRMOUT_SELECT_BUFFER(i
) |
284 STRMOUT_OFFSET_SOURCE(STRMOUT_OFFSET_NONE
) |
285 STRMOUT_STORE_BUFFER_FILLED_SIZE
); /* control */
286 radeon_emit(cs
, va
); /* dst address lo */
287 radeon_emit(cs
, va
>> 32); /* dst address hi */
288 radeon_emit(cs
, 0); /* unused */
289 radeon_emit(cs
, 0); /* unused */
291 r600_emit_reloc(rctx
, &rctx
->rings
.gfx
, t
[i
]->buf_filled_size
,
292 RADEON_USAGE_WRITE
, RADEON_PRIO_MIN
);
294 /* Zero the buffer size. The counters (primitives generated,
295 * primitives emitted) may be enabled even if there is not
296 * buffer bound. This ensures that the primitives-emitted query
297 * won't increment. */
298 r600_write_context_reg(cs
, R_028AD0_VGT_STRMOUT_BUFFER_SIZE_0
+ 16*i
, 0);
300 t
[i
]->buf_filled_size_valid
= true;
303 rctx
->streamout
.begin_emitted
= false;
304 rctx
->flags
|= R600_CONTEXT_STREAMOUT_FLUSH
;
307 /* STREAMOUT CONFIG DERIVED STATE
309 * Streamout must be enabled for the PRIMITIVES_GENERATED query to work.
310 * The buffer mask is an independent state, so no writes occur if there
311 * are no buffers bound.
314 static bool r600_get_strmout_en(struct r600_common_context
*rctx
)
316 return rctx
->streamout
.streamout_enabled
||
317 rctx
->streamout
.prims_gen_query_enabled
;
320 static void r600_emit_streamout_enable(struct r600_common_context
*rctx
,
321 struct r600_atom
*atom
)
323 unsigned strmout_config_reg
= R_028AB0_VGT_STRMOUT_EN
;
324 unsigned strmout_config_val
= S_028B94_STREAMOUT_0_EN(r600_get_strmout_en(rctx
));
325 unsigned strmout_buffer_reg
= R_028B20_VGT_STRMOUT_BUFFER_EN
;
326 unsigned strmout_buffer_val
= rctx
->streamout
.hw_enabled_mask
&
327 rctx
->streamout
.enabled_stream_buffers_mask
;
329 if (rctx
->chip_class
>= EVERGREEN
) {
330 strmout_buffer_reg
= R_028B98_VGT_STRMOUT_BUFFER_CONFIG
;
332 strmout_config_reg
= R_028B94_VGT_STRMOUT_CONFIG
;
333 strmout_config_val
|=
334 S_028B94_RAST_STREAM(0) |
335 S_028B94_STREAMOUT_1_EN(r600_get_strmout_en(rctx
)) |
336 S_028B94_STREAMOUT_2_EN(r600_get_strmout_en(rctx
)) |
337 S_028B94_STREAMOUT_3_EN(r600_get_strmout_en(rctx
));
339 r600_write_context_reg(rctx
->rings
.gfx
.cs
, strmout_buffer_reg
, strmout_buffer_val
);
340 r600_write_context_reg(rctx
->rings
.gfx
.cs
, strmout_config_reg
, strmout_config_val
);
343 static void r600_set_streamout_enable(struct r600_common_context
*rctx
, bool enable
)
345 bool old_strmout_en
= r600_get_strmout_en(rctx
);
346 unsigned old_hw_enabled_mask
= rctx
->streamout
.hw_enabled_mask
;
348 rctx
->streamout
.streamout_enabled
= enable
;
350 rctx
->streamout
.hw_enabled_mask
= rctx
->streamout
.enabled_mask
|
351 (rctx
->streamout
.enabled_mask
<< 4) |
352 (rctx
->streamout
.enabled_mask
<< 8) |
353 (rctx
->streamout
.enabled_mask
<< 12);
355 if ((old_strmout_en
!= r600_get_strmout_en(rctx
)) ||
356 (old_hw_enabled_mask
!= rctx
->streamout
.hw_enabled_mask
)) {
357 rctx
->set_atom_dirty(rctx
, &rctx
->streamout
.enable_atom
, true);
361 void r600_update_prims_generated_query_state(struct r600_common_context
*rctx
,
362 unsigned type
, int diff
)
364 if (type
== PIPE_QUERY_PRIMITIVES_GENERATED
) {
365 bool old_strmout_en
= r600_get_strmout_en(rctx
);
367 rctx
->streamout
.num_prims_gen_queries
+= diff
;
368 assert(rctx
->streamout
.num_prims_gen_queries
>= 0);
370 rctx
->streamout
.prims_gen_query_enabled
=
371 rctx
->streamout
.num_prims_gen_queries
!= 0;
373 if (old_strmout_en
!= r600_get_strmout_en(rctx
)) {
374 rctx
->set_atom_dirty(rctx
, &rctx
->streamout
.enable_atom
, true);
379 void r600_streamout_init(struct r600_common_context
*rctx
)
381 rctx
->b
.create_stream_output_target
= r600_create_so_target
;
382 rctx
->b
.stream_output_target_destroy
= r600_so_target_destroy
;
383 rctx
->streamout
.begin_atom
.emit
= r600_emit_streamout_begin
;
384 rctx
->streamout
.enable_atom
.emit
= r600_emit_streamout_enable
;
385 rctx
->streamout
.enable_atom
.num_dw
= 6;