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 */
92 3; /* VGT_STRMOUT_BUFFER_CONFIG */
94 if (rctx
->chip_class
>= SI
) {
95 begin
->num_dw
+= num_bufs
* 4; /* SET_CONTEXT_REG */
97 begin
->num_dw
+= num_bufs
* 7; /* SET_CONTEXT_REG */
99 if (rctx
->family
>= CHIP_RS780
&& rctx
->family
<= CHIP_RV740
)
100 begin
->num_dw
+= num_bufs
* 5; /* STRMOUT_BASE_UPDATE */
104 num_bufs_appended
* 8 + /* STRMOUT_BUFFER_UPDATE */
105 (num_bufs
- num_bufs_appended
) * 6 + /* STRMOUT_BUFFER_UPDATE */
106 (rctx
->family
> CHIP_R600
&& rctx
->family
< CHIP_RS780
? 2 : 0); /* SURFACE_BASE_UPDATE */
110 r600_set_streamout_enable(rctx
, true);
113 void r600_set_streamout_targets(struct pipe_context
*ctx
,
114 unsigned num_targets
,
115 struct pipe_stream_output_target
**targets
,
116 const unsigned *offsets
)
118 struct r600_common_context
*rctx
= (struct r600_common_context
*)ctx
;
120 unsigned append_bitmask
= 0;
122 /* Stop streamout. */
123 if (rctx
->streamout
.num_targets
&& rctx
->streamout
.begin_emitted
) {
124 r600_emit_streamout_end(rctx
);
127 /* Set the new targets. */
128 for (i
= 0; i
< num_targets
; i
++) {
129 pipe_so_target_reference((struct pipe_stream_output_target
**)&rctx
->streamout
.targets
[i
], targets
[i
]);
130 r600_context_add_resource_size(ctx
, targets
[i
]->buffer
);
131 if (offsets
[i
] == ((unsigned)-1))
132 append_bitmask
|= 1 << i
;
134 for (; i
< rctx
->streamout
.num_targets
; i
++) {
135 pipe_so_target_reference((struct pipe_stream_output_target
**)&rctx
->streamout
.targets
[i
], NULL
);
138 rctx
->streamout
.enabled_mask
= (num_targets
>= 1 && targets
[0] ? 1 : 0) |
139 (num_targets
>= 2 && targets
[1] ? 2 : 0) |
140 (num_targets
>= 3 && targets
[2] ? 4 : 0) |
141 (num_targets
>= 4 && targets
[3] ? 8 : 0);
143 rctx
->streamout
.num_targets
= num_targets
;
144 rctx
->streamout
.append_bitmask
= append_bitmask
;
147 r600_streamout_buffers_dirty(rctx
);
149 rctx
->streamout
.begin_atom
.dirty
= false;
150 r600_set_streamout_enable(rctx
, false);
154 static void r600_flush_vgt_streamout(struct r600_common_context
*rctx
)
156 struct radeon_winsys_cs
*cs
= rctx
->rings
.gfx
.cs
;
157 unsigned reg_strmout_cntl
;
159 /* The register is at different places on different ASICs. */
160 if (rctx
->chip_class
>= CIK
) {
161 reg_strmout_cntl
= R_0300FC_CP_STRMOUT_CNTL
;
162 } else if (rctx
->chip_class
>= EVERGREEN
) {
163 reg_strmout_cntl
= R_0084FC_CP_STRMOUT_CNTL
;
165 reg_strmout_cntl
= R_008490_CP_STRMOUT_CNTL
;
168 if (rctx
->chip_class
>= CIK
) {
169 cik_write_uconfig_reg(cs
, reg_strmout_cntl
, 0);
171 r600_write_config_reg(cs
, reg_strmout_cntl
, 0);
174 radeon_emit(cs
, PKT3(PKT3_EVENT_WRITE
, 0, 0));
175 radeon_emit(cs
, EVENT_TYPE(EVENT_TYPE_SO_VGTSTREAMOUT_FLUSH
) | EVENT_INDEX(0));
177 radeon_emit(cs
, PKT3(PKT3_WAIT_REG_MEM
, 5, 0));
178 radeon_emit(cs
, WAIT_REG_MEM_EQUAL
); /* wait until the register is equal to the reference value */
179 radeon_emit(cs
, reg_strmout_cntl
>> 2); /* register */
181 radeon_emit(cs
, S_008490_OFFSET_UPDATE_DONE(1)); /* reference value */
182 radeon_emit(cs
, S_008490_OFFSET_UPDATE_DONE(1)); /* mask */
183 radeon_emit(cs
, 4); /* poll interval */
186 static void r600_emit_streamout_begin(struct r600_common_context
*rctx
, struct r600_atom
*atom
)
188 struct radeon_winsys_cs
*cs
= rctx
->rings
.gfx
.cs
;
189 struct r600_so_target
**t
= rctx
->streamout
.targets
;
190 unsigned *stride_in_dw
= rctx
->streamout
.stride_in_dw
;
191 unsigned i
, update_flags
= 0;
193 r600_flush_vgt_streamout(rctx
);
195 r600_write_context_reg(cs
, rctx
->chip_class
>= EVERGREEN
?
196 R_028B98_VGT_STRMOUT_BUFFER_CONFIG
:
197 R_028B20_VGT_STRMOUT_BUFFER_EN
,
198 rctx
->streamout
.enabled_mask
);
200 for (i
= 0; i
< rctx
->streamout
.num_targets
; i
++) {
204 t
[i
]->stride_in_dw
= stride_in_dw
[i
];
206 if (rctx
->chip_class
>= SI
) {
207 /* SI binds streamout buffers as shader resources.
208 * VGT only counts primitives and tells the shader
209 * through SGPRs what to do. */
210 r600_write_context_reg_seq(cs
, R_028AD0_VGT_STRMOUT_BUFFER_SIZE_0
+ 16*i
, 2);
211 radeon_emit(cs
, (t
[i
]->b
.buffer_offset
+
212 t
[i
]->b
.buffer_size
) >> 2); /* BUFFER_SIZE (in DW) */
213 radeon_emit(cs
, stride_in_dw
[i
]); /* VTX_STRIDE (in DW) */
215 uint64_t va
= r600_resource(t
[i
]->b
.buffer
)->gpu_address
;
217 update_flags
|= SURFACE_BASE_UPDATE_STRMOUT(i
);
219 r600_write_context_reg_seq(cs
, R_028AD0_VGT_STRMOUT_BUFFER_SIZE_0
+ 16*i
, 3);
220 radeon_emit(cs
, (t
[i
]->b
.buffer_offset
+
221 t
[i
]->b
.buffer_size
) >> 2); /* BUFFER_SIZE (in DW) */
222 radeon_emit(cs
, stride_in_dw
[i
]); /* VTX_STRIDE (in DW) */
223 radeon_emit(cs
, va
>> 8); /* BUFFER_BASE */
225 r600_emit_reloc(rctx
, &rctx
->rings
.gfx
, r600_resource(t
[i
]->b
.buffer
),
226 RADEON_USAGE_WRITE
, RADEON_PRIO_SHADER_RESOURCE_RW
);
228 /* R7xx requires this packet after updating BUFFER_BASE.
229 * Without this, R7xx locks up. */
230 if (rctx
->family
>= CHIP_RS780
&& rctx
->family
<= CHIP_RV740
) {
231 radeon_emit(cs
, PKT3(PKT3_STRMOUT_BASE_UPDATE
, 1, 0));
233 radeon_emit(cs
, va
>> 8);
235 r600_emit_reloc(rctx
, &rctx
->rings
.gfx
, r600_resource(t
[i
]->b
.buffer
),
236 RADEON_USAGE_WRITE
, RADEON_PRIO_SHADER_RESOURCE_RW
);
240 if (rctx
->streamout
.append_bitmask
& (1 << i
) && t
[i
]->buf_filled_size_valid
) {
241 uint64_t va
= t
[i
]->buf_filled_size
->gpu_address
+
242 t
[i
]->buf_filled_size_offset
;
245 radeon_emit(cs
, PKT3(PKT3_STRMOUT_BUFFER_UPDATE
, 4, 0));
246 radeon_emit(cs
, STRMOUT_SELECT_BUFFER(i
) |
247 STRMOUT_OFFSET_SOURCE(STRMOUT_OFFSET_FROM_MEM
)); /* control */
248 radeon_emit(cs
, 0); /* unused */
249 radeon_emit(cs
, 0); /* unused */
250 radeon_emit(cs
, va
); /* src address lo */
251 radeon_emit(cs
, va
>> 32); /* src address hi */
253 r600_emit_reloc(rctx
, &rctx
->rings
.gfx
, t
[i
]->buf_filled_size
,
254 RADEON_USAGE_READ
, RADEON_PRIO_MIN
);
256 /* Start from the beginning. */
257 radeon_emit(cs
, PKT3(PKT3_STRMOUT_BUFFER_UPDATE
, 4, 0));
258 radeon_emit(cs
, STRMOUT_SELECT_BUFFER(i
) |
259 STRMOUT_OFFSET_SOURCE(STRMOUT_OFFSET_FROM_PACKET
)); /* control */
260 radeon_emit(cs
, 0); /* unused */
261 radeon_emit(cs
, 0); /* unused */
262 radeon_emit(cs
, t
[i
]->b
.buffer_offset
>> 2); /* buffer offset in DW */
263 radeon_emit(cs
, 0); /* unused */
267 if (rctx
->family
> CHIP_R600
&& rctx
->family
< CHIP_RV770
) {
268 radeon_emit(cs
, PKT3(PKT3_SURFACE_BASE_UPDATE
, 0, 0));
269 radeon_emit(cs
, update_flags
);
271 rctx
->streamout
.begin_emitted
= true;
274 void r600_emit_streamout_end(struct r600_common_context
*rctx
)
276 struct radeon_winsys_cs
*cs
= rctx
->rings
.gfx
.cs
;
277 struct r600_so_target
**t
= rctx
->streamout
.targets
;
281 r600_flush_vgt_streamout(rctx
);
283 for (i
= 0; i
< rctx
->streamout
.num_targets
; i
++) {
287 va
= t
[i
]->buf_filled_size
->gpu_address
+ t
[i
]->buf_filled_size_offset
;
288 radeon_emit(cs
, PKT3(PKT3_STRMOUT_BUFFER_UPDATE
, 4, 0));
289 radeon_emit(cs
, STRMOUT_SELECT_BUFFER(i
) |
290 STRMOUT_OFFSET_SOURCE(STRMOUT_OFFSET_NONE
) |
291 STRMOUT_STORE_BUFFER_FILLED_SIZE
); /* control */
292 radeon_emit(cs
, va
); /* dst address lo */
293 radeon_emit(cs
, va
>> 32); /* dst address hi */
294 radeon_emit(cs
, 0); /* unused */
295 radeon_emit(cs
, 0); /* unused */
297 r600_emit_reloc(rctx
, &rctx
->rings
.gfx
, t
[i
]->buf_filled_size
,
298 RADEON_USAGE_WRITE
, RADEON_PRIO_MIN
);
300 /* Zero the buffer size. The counters (primitives generated,
301 * primitives emitted) may be enabled even if there is not
302 * buffer bound. This ensures that the primitives-emitted query
303 * won't increment. */
304 r600_write_context_reg(cs
, R_028AD0_VGT_STRMOUT_BUFFER_SIZE_0
+ 16*i
, 0);
306 t
[i
]->buf_filled_size_valid
= true;
309 rctx
->streamout
.begin_emitted
= false;
310 rctx
->flags
|= R600_CONTEXT_STREAMOUT_FLUSH
;
313 /* STREAMOUT CONFIG DERIVED STATE
315 * Streamout must be enabled for the PRIMITIVES_GENERATED query to work.
316 * The buffer mask is an independent state, so no writes occur if there
317 * are no buffers bound.
320 static bool r600_get_strmout_en(struct r600_common_context
*rctx
)
322 return rctx
->streamout
.streamout_enabled
||
323 rctx
->streamout
.prims_gen_query_enabled
;
326 static void r600_emit_streamout_enable(struct r600_common_context
*rctx
,
327 struct r600_atom
*atom
)
329 r600_write_context_reg(rctx
->rings
.gfx
.cs
,
330 rctx
->chip_class
>= EVERGREEN
?
331 R_028B94_VGT_STRMOUT_CONFIG
:
332 R_028AB0_VGT_STRMOUT_EN
,
333 S_028B94_STREAMOUT_0_EN(r600_get_strmout_en(rctx
)));
336 static void r600_set_streamout_enable(struct r600_common_context
*rctx
, bool enable
)
338 bool old_strmout_en
= r600_get_strmout_en(rctx
);
340 rctx
->streamout
.streamout_enabled
= enable
;
341 if (old_strmout_en
!= r600_get_strmout_en(rctx
))
342 rctx
->streamout
.enable_atom
.dirty
= true;
345 void r600_update_prims_generated_query_state(struct r600_common_context
*rctx
,
346 unsigned type
, int diff
)
348 if (type
== PIPE_QUERY_PRIMITIVES_GENERATED
) {
349 bool old_strmout_en
= r600_get_strmout_en(rctx
);
351 rctx
->streamout
.num_prims_gen_queries
+= diff
;
352 assert(rctx
->streamout
.num_prims_gen_queries
>= 0);
354 rctx
->streamout
.prims_gen_query_enabled
=
355 rctx
->streamout
.num_prims_gen_queries
!= 0;
357 if (old_strmout_en
!= r600_get_strmout_en(rctx
))
358 rctx
->streamout
.enable_atom
.dirty
= true;
362 void r600_streamout_init(struct r600_common_context
*rctx
)
364 rctx
->b
.create_stream_output_target
= r600_create_so_target
;
365 rctx
->b
.stream_output_target_destroy
= r600_so_target_destroy
;
366 rctx
->streamout
.begin_atom
.emit
= r600_emit_streamout_begin
;
367 rctx
->streamout
.enable_atom
.emit
= r600_emit_streamout_enable
;
368 rctx
->streamout
.enable_atom
.num_dw
= 3;