2 * Copyright © 2011 Intel Corporation
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
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
26 #include "intel_batchbuffer.h"
27 #include "intel_mipmap_tree.h"
28 #include "intel_fbo.h"
30 #include "brw_context.h"
31 #include "brw_state.h"
33 #include "blorp/blorp_genX_exec.h"
36 #include "gen4_blorp_exec.h"
39 #include "brw_blorp.h"
42 blorp_emit_dwords(struct blorp_batch
*batch
, unsigned n
)
44 assert(batch
->blorp
->driver_ctx
== batch
->driver_batch
);
45 struct brw_context
*brw
= batch
->driver_batch
;
47 intel_batchbuffer_begin(brw
, n
, RENDER_RING
);
48 uint32_t *map
= brw
->batch
.map_next
;
49 brw
->batch
.map_next
+= n
;
50 intel_batchbuffer_advance(brw
);
55 blorp_emit_reloc(struct blorp_batch
*batch
,
56 void *location
, struct blorp_address address
, uint32_t delta
)
58 assert(batch
->blorp
->driver_ctx
== batch
->driver_batch
);
59 struct brw_context
*brw
= batch
->driver_batch
;
62 if (GEN_GEN
< 6 && brw_ptr_in_state_buffer(&brw
->batch
, location
)) {
63 offset
= (char *)location
- (char *)brw
->batch
.state_map
;
64 return brw_state_reloc(&brw
->batch
, offset
,
65 address
.buffer
, address
.offset
+ delta
,
69 assert(!brw_ptr_in_state_buffer(&brw
->batch
, location
));
71 offset
= (char *)location
- (char *)brw
->batch
.map
;
72 return brw_batch_reloc(&brw
->batch
, offset
,
73 address
.buffer
, address
.offset
+ delta
,
78 blorp_surface_reloc(struct blorp_batch
*batch
, uint32_t ss_offset
,
79 struct blorp_address address
, uint32_t delta
)
81 assert(batch
->blorp
->driver_ctx
== batch
->driver_batch
);
82 struct brw_context
*brw
= batch
->driver_batch
;
83 struct brw_bo
*bo
= address
.buffer
;
86 brw_state_reloc(&brw
->batch
, ss_offset
, bo
, address
.offset
+ delta
,
89 void *reloc_ptr
= (void *)brw
->batch
.state_map
+ ss_offset
;
91 *(uint64_t *)reloc_ptr
= reloc_val
;
93 *(uint32_t *)reloc_ptr
= reloc_val
;
98 blorp_alloc_dynamic_state(struct blorp_batch
*batch
,
103 assert(batch
->blorp
->driver_ctx
== batch
->driver_batch
);
104 struct brw_context
*brw
= batch
->driver_batch
;
106 return brw_state_batch(brw
, size
, alignment
, offset
);
110 blorp_alloc_binding_table(struct blorp_batch
*batch
, unsigned num_entries
,
111 unsigned state_size
, unsigned state_alignment
,
112 uint32_t *bt_offset
, uint32_t *surface_offsets
,
115 assert(batch
->blorp
->driver_ctx
== batch
->driver_batch
);
116 struct brw_context
*brw
= batch
->driver_batch
;
118 uint32_t *bt_map
= brw_state_batch(brw
,
119 num_entries
* sizeof(uint32_t), 32,
122 for (unsigned i
= 0; i
< num_entries
; i
++) {
123 surface_maps
[i
] = brw_state_batch(brw
,
124 state_size
, state_alignment
,
125 &(surface_offsets
)[i
]);
126 bt_map
[i
] = surface_offsets
[i
];
131 blorp_alloc_vertex_buffer(struct blorp_batch
*batch
, uint32_t size
,
132 struct blorp_address
*addr
)
134 assert(batch
->blorp
->driver_ctx
== batch
->driver_batch
);
135 struct brw_context
*brw
= batch
->driver_batch
;
137 /* From the Skylake PRM, 3DSTATE_VERTEX_BUFFERS:
139 * "The VF cache needs to be invalidated before binding and then using
140 * Vertex Buffers that overlap with any previously bound Vertex Buffer
141 * (at a 64B granularity) since the last invalidation. A VF cache
142 * invalidate is performed by setting the "VF Cache Invalidation Enable"
143 * bit in PIPE_CONTROL."
145 * This restriction first appears in the Skylake PRM but the internal docs
146 * also list it as being an issue on Broadwell. In order to avoid this
147 * problem, we align all vertex buffer allocations to 64 bytes.
150 void *data
= brw_state_batch(brw
, size
, 64, &offset
);
152 *addr
= (struct blorp_address
) {
153 .buffer
= brw
->batch
.state_bo
,
163 .mocs
= GEN7_MOCS_L3
,
171 static struct blorp_address
172 blorp_get_workaround_page(struct blorp_batch
*batch
)
174 assert(batch
->blorp
->driver_ctx
== batch
->driver_batch
);
175 struct brw_context
*brw
= batch
->driver_batch
;
177 return (struct blorp_address
) {
178 .buffer
= brw
->workaround_bo
,
184 blorp_flush_range(struct blorp_batch
*batch
, void *start
, size_t size
)
186 /* All allocated states come from the batch which we will flush before we
187 * submit it. There's nothing for us to do here.
192 blorp_emit_urb_config(struct blorp_batch
*batch
,
193 unsigned vs_entry_size
, unsigned sf_entry_size
)
195 assert(batch
->blorp
->driver_ctx
== batch
->driver_batch
);
196 struct brw_context
*brw
= batch
->driver_batch
;
199 if (brw
->urb
.vsize
>= vs_entry_size
)
202 gen7_upload_urb(brw
, vs_entry_size
, false, false);
204 gen6_upload_urb(brw
, vs_entry_size
, false, 0);
206 /* We calculate it now and emit later. */
207 brw_calculate_urb_fence(brw
, 0, vs_entry_size
, sf_entry_size
);
212 genX(blorp_exec
)(struct blorp_batch
*batch
,
213 const struct blorp_params
*params
)
215 assert(batch
->blorp
->driver_ctx
== batch
->driver_batch
);
216 struct brw_context
*brw
= batch
->driver_batch
;
217 struct gl_context
*ctx
= &brw
->ctx
;
218 bool check_aperture_failed_once
= false;
220 /* Flush the sampler and render caches. We definitely need to flush the
221 * sampler cache so that we get updated contents from the render cache for
222 * the glBlitFramebuffer() source. Also, we are sometimes warned in the
223 * docs to flush the cache between reinterpretations of the same surface
224 * data with different formats, which blorp does for stencil and depth
227 if (params
->src
.enabled
)
228 brw_cache_flush_for_read(brw
, params
->src
.addr
.buffer
);
229 if (params
->dst
.enabled
)
230 brw_cache_flush_for_render(brw
, params
->dst
.addr
.buffer
);
231 if (params
->depth
.enabled
)
232 brw_cache_flush_for_depth(brw
, params
->depth
.addr
.buffer
);
233 if (params
->stencil
.enabled
)
234 brw_cache_flush_for_depth(brw
, params
->stencil
.addr
.buffer
);
236 brw_select_pipeline(brw
, BRW_RENDER_PIPELINE
);
239 intel_batchbuffer_require_space(brw
, 1400, RENDER_RING
);
240 brw_require_statebuffer_space(brw
, 600);
241 intel_batchbuffer_save_state(brw
);
242 brw
->batch
.no_wrap
= true;
245 /* Emit workaround flushes when we switch from drawing to blorping. */
246 brw_emit_post_sync_nonzero_flush(brw
);
249 brw_upload_state_base_address(brw
);
252 gen7_l3_state
.emit(brw
);
256 brw_emit_depth_stall_flushes(brw
);
260 gen8_write_pma_stall_bits(brw
, 0);
263 blorp_emit(batch
, GENX(3DSTATE_DRAWING_RECTANGLE
), rect
) {
264 rect
.ClippedDrawingRectangleXMax
= MAX2(params
->x1
, params
->x0
) - 1;
265 rect
.ClippedDrawingRectangleYMax
= MAX2(params
->y1
, params
->y0
) - 1;
268 blorp_exec(batch
, params
);
270 brw
->batch
.no_wrap
= false;
272 /* Check if the blorp op we just did would make our batch likely to fail to
273 * map all the BOs into the GPU at batch exec time later. If so, flush the
274 * batch and try again with nothing else in the batch.
276 if (!brw_batch_has_aperture_space(brw
, 0)) {
277 if (!check_aperture_failed_once
) {
278 check_aperture_failed_once
= true;
279 intel_batchbuffer_reset_to_saved(brw
);
280 intel_batchbuffer_flush(brw
);
283 int ret
= intel_batchbuffer_flush(brw
);
284 WARN_ONCE(ret
== -ENOSPC
,
285 "i965: blorp emit exceeded available aperture space\n");
289 if (unlikely(brw
->always_flush_batch
))
290 intel_batchbuffer_flush(brw
);
292 /* We've smashed all state compared to what the normal 3D pipeline
293 * rendering tracks for GL.
295 brw
->ctx
.NewDriverState
|= BRW_NEW_BLORP
;
296 brw
->no_depth_or_stencil
= !params
->depth
.enabled
&&
297 !params
->stencil
.enabled
;
298 brw
->ib
.index_size
= -1;
300 if (params
->dst
.enabled
)
301 brw_render_cache_add_bo(brw
, params
->dst
.addr
.buffer
);
302 if (params
->depth
.enabled
)
303 brw_depth_cache_add_bo(brw
, params
->depth
.addr
.buffer
);
304 if (params
->stencil
.enabled
)
305 brw_depth_cache_add_bo(brw
, params
->stencil
.addr
.buffer
);