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25 * \file brw_binding_tables.c
27 * State atoms which upload the "binding table" for each shader stage.
29 * Binding tables map a numeric "surface index" to the SURFACE_STATE structure
30 * for a currently bound surface. This allows SEND messages (such as sampler
31 * or data port messages) to refer to a particular surface by number, rather
34 * The binding table is stored as a (sparse) array of SURFACE_STATE entries;
35 * surface indexes are simply indexes into the array. The ordering of the
36 * entries is entirely left up to software; see the SURF_INDEX_* macros in
37 * brw_context.h to see our current layout.
40 #include "main/mtypes.h"
42 #include "brw_context.h"
43 #include "brw_defines.h"
44 #include "brw_state.h"
45 #include "intel_batchbuffer.h"
48 * Upload a shader stage's binding table as indirect state.
50 * This copies brw_stage_state::surf_offset[] into the indirect state section
51 * of the batchbuffer (allocated by brw_state_batch()).
54 brw_upload_binding_table(struct brw_context
*brw
,
56 const struct brw_stage_prog_data
*prog_data
,
57 struct brw_stage_state
*stage_state
)
59 const struct gen_device_info
*devinfo
= &brw
->screen
->devinfo
;
61 if (prog_data
->binding_table
.size_bytes
== 0) {
62 /* There are no surfaces; skip making the binding table altogether. */
63 if (stage_state
->bind_bo_offset
== 0 && devinfo
->gen
< 9)
66 stage_state
->bind_bo_offset
= 0;
68 /* Upload a new binding table. */
69 if (INTEL_DEBUG
& DEBUG_SHADER_TIME
) {
70 brw_emit_buffer_surface_state(
71 brw
, &stage_state
->surf_offset
[
72 prog_data
->binding_table
.shader_time_start
],
73 brw
->shader_time
.bo
, 0, ISL_FORMAT_RAW
,
74 brw
->shader_time
.bo
->size
, 1, RELOC_WRITE
);
77 brw_state_batch(brw
, prog_data
->binding_table
.size_bytes
,
78 32, &stage_state
->bind_bo_offset
);
80 /* BRW_NEW_SURFACES and BRW_NEW_*_CONSTBUF */
81 memcpy(bind
, stage_state
->surf_offset
,
82 prog_data
->binding_table
.size_bytes
);
85 brw
->ctx
.NewDriverState
|= BRW_NEW_BINDING_TABLE_POINTERS
;
87 if (devinfo
->gen
>= 7) {
89 OUT_BATCH(packet_name
<< 16 | (2 - 2));
90 /* Align SurfaceStateOffset[16:6] format to [15:5] PS Binding Table field
91 * when hw-generated binding table is enabled.
93 OUT_BATCH(stage_state
->bind_bo_offset
);
99 * State atoms which upload the binding table for a particular shader stage.
103 /** Upload the VS binding table. */
105 brw_vs_upload_binding_table(struct brw_context
*brw
)
107 /* BRW_NEW_VS_PROG_DATA */
108 const struct brw_stage_prog_data
*prog_data
= brw
->vs
.base
.prog_data
;
109 brw_upload_binding_table(brw
,
110 _3DSTATE_BINDING_TABLE_POINTERS_VS
,
115 const struct brw_tracked_state brw_vs_binding_table
= {
118 .brw
= BRW_NEW_BATCH
|
120 BRW_NEW_VS_CONSTBUF
|
121 BRW_NEW_VS_PROG_DATA
|
124 .emit
= brw_vs_upload_binding_table
,
128 /** Upload the PS binding table. */
130 brw_upload_wm_binding_table(struct brw_context
*brw
)
132 /* BRW_NEW_FS_PROG_DATA */
133 const struct brw_stage_prog_data
*prog_data
= brw
->wm
.base
.prog_data
;
134 brw_upload_binding_table(brw
,
135 _3DSTATE_BINDING_TABLE_POINTERS_PS
,
140 const struct brw_tracked_state brw_wm_binding_table
= {
143 .brw
= BRW_NEW_BATCH
|
145 BRW_NEW_FS_PROG_DATA
|
148 .emit
= brw_upload_wm_binding_table
,
151 /** Upload the TCS binding table (if tessellation stages are active). */
153 brw_tcs_upload_binding_table(struct brw_context
*brw
)
155 /* Skip if the tessellation stages are disabled. */
156 if (brw
->programs
[MESA_SHADER_TESS_EVAL
] == NULL
)
159 /* BRW_NEW_TCS_PROG_DATA */
160 const struct brw_stage_prog_data
*prog_data
= brw
->tcs
.base
.prog_data
;
161 brw_upload_binding_table(brw
,
162 _3DSTATE_BINDING_TABLE_POINTERS_HS
,
167 const struct brw_tracked_state brw_tcs_binding_table
= {
170 .brw
= BRW_NEW_BATCH
|
172 BRW_NEW_DEFAULT_TESS_LEVELS
|
174 BRW_NEW_TCS_CONSTBUF
|
175 BRW_NEW_TCS_PROG_DATA
,
177 .emit
= brw_tcs_upload_binding_table
,
180 /** Upload the TES binding table (if TES is active). */
182 brw_tes_upload_binding_table(struct brw_context
*brw
)
184 /* If there's no TES, skip changing anything. */
185 if (brw
->programs
[MESA_SHADER_TESS_EVAL
] == NULL
)
188 /* BRW_NEW_TES_PROG_DATA */
189 const struct brw_stage_prog_data
*prog_data
= brw
->tes
.base
.prog_data
;
190 brw_upload_binding_table(brw
,
191 _3DSTATE_BINDING_TABLE_POINTERS_DS
,
196 const struct brw_tracked_state brw_tes_binding_table
= {
199 .brw
= BRW_NEW_BATCH
|
202 BRW_NEW_TES_CONSTBUF
|
203 BRW_NEW_TES_PROG_DATA
,
205 .emit
= brw_tes_upload_binding_table
,
208 /** Upload the GS binding table (if GS is active). */
210 brw_gs_upload_binding_table(struct brw_context
*brw
)
212 /* If there's no GS, skip changing anything. */
213 if (brw
->programs
[MESA_SHADER_GEOMETRY
] == NULL
)
216 /* BRW_NEW_GS_PROG_DATA */
217 const struct brw_stage_prog_data
*prog_data
= brw
->gs
.base
.prog_data
;
218 brw_upload_binding_table(brw
,
219 _3DSTATE_BINDING_TABLE_POINTERS_GS
,
224 const struct brw_tracked_state brw_gs_binding_table
= {
227 .brw
= BRW_NEW_BATCH
|
229 BRW_NEW_GS_CONSTBUF
|
230 BRW_NEW_GS_PROG_DATA
|
233 .emit
= brw_gs_upload_binding_table
,
238 * State atoms which emit 3DSTATE packets to update the binding table pointers.
243 * (Gen4-5) Upload the binding table pointers for all shader stages.
245 * The binding table pointers are relative to the surface state base address,
246 * which points at the batchbuffer containing the streamed batch state.
249 gen4_upload_binding_table_pointers(struct brw_context
*brw
)
252 OUT_BATCH(_3DSTATE_BINDING_TABLE_POINTERS
<< 16 | (6 - 2));
253 OUT_BATCH(brw
->vs
.base
.bind_bo_offset
);
254 OUT_BATCH(0); /* gs */
255 OUT_BATCH(0); /* clip */
256 OUT_BATCH(0); /* sf */
257 OUT_BATCH(brw
->wm
.base
.bind_bo_offset
);
261 const struct brw_tracked_state brw_binding_table_pointers
= {
264 .brw
= BRW_NEW_BATCH
|
266 BRW_NEW_BINDING_TABLE_POINTERS
|
267 BRW_NEW_STATE_BASE_ADDRESS
,
269 .emit
= gen4_upload_binding_table_pointers
,
273 * (Sandybridge Only) Upload the binding table pointers for all shader stages.
275 * The binding table pointers are relative to the surface state base address,
276 * which points at the batchbuffer containing the streamed batch state.
279 gen6_upload_binding_table_pointers(struct brw_context
*brw
)
282 OUT_BATCH(_3DSTATE_BINDING_TABLE_POINTERS
<< 16 |
283 GEN6_BINDING_TABLE_MODIFY_VS
|
284 GEN6_BINDING_TABLE_MODIFY_GS
|
285 GEN6_BINDING_TABLE_MODIFY_PS
|
287 OUT_BATCH(brw
->vs
.base
.bind_bo_offset
); /* vs */
288 if (brw
->ff_gs
.prog_active
)
289 OUT_BATCH(brw
->ff_gs
.bind_bo_offset
); /* gs */
291 OUT_BATCH(brw
->gs
.base
.bind_bo_offset
); /* gs */
292 OUT_BATCH(brw
->wm
.base
.bind_bo_offset
); /* wm/ps */
296 const struct brw_tracked_state gen6_binding_table_pointers
= {
299 .brw
= BRW_NEW_BATCH
|
301 BRW_NEW_BINDING_TABLE_POINTERS
|
302 BRW_NEW_STATE_BASE_ADDRESS
,
304 .emit
= gen6_upload_binding_table_pointers
,