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1 
2 #include "util/format/u_format.h"
3 
4 #include "nv50/nv50_context.h"
5 
6 #include "nv50/g80_defs.xml.h"
7 
8 struct nv50_transfer {
9    struct pipe_transfer base;
10    struct nv50_m2mf_rect rect[2];
11    uint32_t nblocksx;
12    uint32_t nblocksy;
13 };
14 
15 void
nv50_m2mf_rect_setup(struct nv50_m2mf_rect * rect,struct pipe_resource * restrict res,unsigned l,unsigned x,unsigned y,unsigned z)16 nv50_m2mf_rect_setup(struct nv50_m2mf_rect *rect,
17                      struct pipe_resource *restrict res, unsigned l,
18                      unsigned x, unsigned y, unsigned z)
19 {
20    struct nv50_miptree *mt = nv50_miptree(res);
21    const unsigned w = u_minify(res->width0, l);
22    const unsigned h = u_minify(res->height0, l);
23 
24    rect->bo = mt->base.bo;
25    rect->domain = mt->base.domain;
26    rect->base = mt->level[l].offset;
27    if (mt->base.bo->offset != mt->base.address)
28       rect->base += mt->base.address - mt->base.bo->offset;
29    rect->pitch = mt->level[l].pitch;
30    if (util_format_is_plain(res->format)) {
31       rect->width = w << mt->ms_x;
32       rect->height = h << mt->ms_y;
33       rect->x = x << mt->ms_x;
34       rect->y = y << mt->ms_y;
35    } else {
36       rect->width = util_format_get_nblocksx(res->format, w);
37       rect->height = util_format_get_nblocksy(res->format, h);
38       rect->x = util_format_get_nblocksx(res->format, x);
39       rect->y = util_format_get_nblocksy(res->format, y);
40    }
41    rect->tile_mode = mt->level[l].tile_mode;
42    rect->cpp = util_format_get_blocksize(res->format);
43 
44    if (mt->layout_3d) {
45       rect->z = z;
46       rect->depth = u_minify(res->depth0, l);
47    } else {
48       rect->base += z * mt->layer_stride;
49       rect->z = 0;
50       rect->depth = 1;
51    }
52 }
53 
54 /* This is very similar to nv50_2d_texture_do_copy, but doesn't require
55  * miptree objects. Maybe refactor? Although it's not straightforward.
56  */
57 static void
nv50_2d_transfer_rect(struct nv50_context * nv50,const struct nv50_m2mf_rect * dst,const struct nv50_m2mf_rect * src,uint32_t nblocksx,uint32_t nblocksy)58 nv50_2d_transfer_rect(struct nv50_context *nv50,
59                       const struct nv50_m2mf_rect *dst,
60                       const struct nv50_m2mf_rect *src,
61                       uint32_t nblocksx, uint32_t nblocksy)
62 {
63    struct nouveau_pushbuf *push = nv50->base.pushbuf;
64    struct nouveau_bufctx *bctx = nv50->bufctx;
65    const int cpp = dst->cpp;
66 
67    nouveau_bufctx_refn(bctx, 0, src->bo, src->domain | NOUVEAU_BO_RD);
68    nouveau_bufctx_refn(bctx, 0, dst->bo, dst->domain | NOUVEAU_BO_WR);
69    nouveau_pushbuf_bufctx(push, bctx);
70    nouveau_pushbuf_validate(push);
71 
72    uint32_t format;
73    switch (cpp) {
74    case 1:
75       format = G80_SURFACE_FORMAT_R8_UNORM;
76       break;
77    case 2:
78       format = G80_SURFACE_FORMAT_R16_UNORM;
79       break;
80    case 4:
81       format = G80_SURFACE_FORMAT_BGRA8_UNORM;
82       break;
83    case 8:
84       format = G80_SURFACE_FORMAT_RGBA16_FLOAT;
85       break;
86    case 16:
87       format = G80_SURFACE_FORMAT_RGBA32_FLOAT;
88       break;
89    default:
90       assert(!"Unexpected cpp");
91       format = G80_SURFACE_FORMAT_R8_UNORM;
92    }
93 
94    if (nouveau_bo_memtype(src->bo)) {
95       BEGIN_NV04(push, NV50_2D(SRC_FORMAT), 5);
96       PUSH_DATA (push, format);
97       PUSH_DATA (push, 0);
98       PUSH_DATA (push, src->tile_mode);
99       PUSH_DATA (push, src->depth);
100       PUSH_DATA (push, src->z);
101       BEGIN_NV04(push, NV50_2D(SRC_WIDTH), 4);
102       PUSH_DATA (push, src->width);
103       PUSH_DATA (push, src->height);
104       PUSH_DATAh(push, src->bo->offset + src->base);
105       PUSH_DATA (push, src->bo->offset + src->base);
106    } else {
107       BEGIN_NV04(push, NV50_2D(SRC_FORMAT), 2);
108       PUSH_DATA (push, format);
109       PUSH_DATA (push, 1);
110       BEGIN_NV04(push, NV50_2D(SRC_PITCH), 5);
111       PUSH_DATA (push, src->pitch);
112       PUSH_DATA (push, src->width);
113       PUSH_DATA (push, src->height);
114       PUSH_DATAh(push, src->bo->offset + src->base);
115       PUSH_DATA (push, src->bo->offset + src->base);
116    }
117 
118    if (nouveau_bo_memtype(dst->bo)) {
119       BEGIN_NV04(push, NV50_2D(DST_FORMAT), 5);
120       PUSH_DATA (push, format);
121       PUSH_DATA (push, 0);
122       PUSH_DATA (push, dst->tile_mode);
123       PUSH_DATA (push, dst->depth);
124       PUSH_DATA (push, dst->z);
125       BEGIN_NV04(push, NV50_2D(DST_WIDTH), 4);
126       PUSH_DATA (push, dst->width);
127       PUSH_DATA (push, dst->height);
128       PUSH_DATAh(push, dst->bo->offset + dst->base);
129       PUSH_DATA (push, dst->bo->offset + dst->base);
130    } else {
131       BEGIN_NV04(push, NV50_2D(DST_FORMAT), 2);
132       PUSH_DATA (push, format);
133       PUSH_DATA (push, 1);
134       BEGIN_NV04(push, NV50_2D(DST_PITCH), 5);
135       PUSH_DATA (push, dst->pitch);
136       PUSH_DATA (push, dst->width);
137       PUSH_DATA (push, dst->height);
138       PUSH_DATAh(push, dst->bo->offset + dst->base);
139       PUSH_DATA (push, dst->bo->offset + dst->base);
140    }
141 
142    BEGIN_NV04(push, NV50_2D(BLIT_CONTROL), 1);
143    PUSH_DATA (push, NV50_2D_BLIT_CONTROL_FILTER_POINT_SAMPLE);
144    BEGIN_NV04(push, NV50_2D(BLIT_DST_X), 4);
145    PUSH_DATA (push, dst->x);
146    PUSH_DATA (push, dst->y);
147    PUSH_DATA (push, nblocksx);
148    PUSH_DATA (push, nblocksy);
149    BEGIN_NV04(push, NV50_2D(BLIT_DU_DX_FRACT), 4);
150    PUSH_DATA (push, 0);
151    PUSH_DATA (push, 1);
152    PUSH_DATA (push, 0);
153    PUSH_DATA (push, 1);
154    BEGIN_NV04(push, NV50_2D(BLIT_SRC_X_FRACT), 4);
155    PUSH_DATA (push, 0);
156    PUSH_DATA (push, src->x);
157    PUSH_DATA (push, 0);
158    PUSH_DATA (push, src->y);
159 
160    nouveau_bufctx_reset(bctx, 0);
161 }
162 
163 void
nv50_m2mf_transfer_rect(struct nv50_context * nv50,const struct nv50_m2mf_rect * dst,const struct nv50_m2mf_rect * src,uint32_t nblocksx,uint32_t nblocksy)164 nv50_m2mf_transfer_rect(struct nv50_context *nv50,
165                         const struct nv50_m2mf_rect *dst,
166                         const struct nv50_m2mf_rect *src,
167                         uint32_t nblocksx, uint32_t nblocksy)
168 {
169    struct nouveau_pushbuf *push = nv50->base.pushbuf;
170    struct nouveau_bufctx *bctx = nv50->bufctx;
171    const int cpp = dst->cpp;
172    uint32_t src_ofst = src->base;
173    uint32_t dst_ofst = dst->base;
174    uint32_t height = nblocksy;
175    uint32_t sy = src->y;
176    uint32_t dy = dst->y;
177 
178    assert(dst->cpp == src->cpp);
179 
180    /* Workaround: M2MF appears to break at the 64k boundary for tiled
181     * textures, which can really only happen with RGBA32 formats.
182     */
183    bool eng2d = false;
184    if (nouveau_bo_memtype(src->bo)) {
185       if (src->width * cpp > 65536)
186          eng2d = true;
187    }
188    if (nouveau_bo_memtype(dst->bo)) {
189       if (dst->width * cpp > 65536)
190          eng2d = true;
191    }
192    if (eng2d) {
193       nv50_2d_transfer_rect(nv50, dst, src, nblocksx, nblocksy);
194       return;
195    }
196 
197    nouveau_bufctx_refn(bctx, 0, src->bo, src->domain | NOUVEAU_BO_RD);
198    nouveau_bufctx_refn(bctx, 0, dst->bo, dst->domain | NOUVEAU_BO_WR);
199    nouveau_pushbuf_bufctx(push, bctx);
200    nouveau_pushbuf_validate(push);
201 
202    if (nouveau_bo_memtype(src->bo)) {
203       BEGIN_NV04(push, NV50_M2MF(LINEAR_IN), 6);
204       PUSH_DATA (push, 0);
205       PUSH_DATA (push, src->tile_mode);
206       PUSH_DATA (push, src->width * cpp);
207       PUSH_DATA (push, src->height);
208       PUSH_DATA (push, src->depth);
209       PUSH_DATA (push, src->z);
210    } else {
211       src_ofst += src->y * src->pitch + src->x * cpp;
212 
213       BEGIN_NV04(push, NV50_M2MF(LINEAR_IN), 1);
214       PUSH_DATA (push, 1);
215       BEGIN_NV04(push, SUBC_M2MF(NV03_M2MF_PITCH_IN), 1);
216       PUSH_DATA (push, src->pitch);
217    }
218 
219    if (nouveau_bo_memtype(dst->bo)) {
220       BEGIN_NV04(push, NV50_M2MF(LINEAR_OUT), 6);
221       PUSH_DATA (push, 0);
222       PUSH_DATA (push, dst->tile_mode);
223       PUSH_DATA (push, dst->width * cpp);
224       PUSH_DATA (push, dst->height);
225       PUSH_DATA (push, dst->depth);
226       PUSH_DATA (push, dst->z);
227    } else {
228       dst_ofst += dst->y * dst->pitch + dst->x * cpp;
229 
230       BEGIN_NV04(push, NV50_M2MF(LINEAR_OUT), 1);
231       PUSH_DATA (push, 1);
232       BEGIN_NV04(push, SUBC_M2MF(NV03_M2MF_PITCH_OUT), 1);
233       PUSH_DATA (push, dst->pitch);
234    }
235 
236    while (height) {
237       int line_count = height > 2047 ? 2047 : height;
238 
239       BEGIN_NV04(push, NV50_M2MF(OFFSET_IN_HIGH), 2);
240       PUSH_DATAh(push, src->bo->offset + src_ofst);
241       PUSH_DATAh(push, dst->bo->offset + dst_ofst);
242 
243       BEGIN_NV04(push, SUBC_M2MF(NV03_M2MF_OFFSET_IN), 2);
244       PUSH_DATA (push, src->bo->offset + src_ofst);
245       PUSH_DATA (push, dst->bo->offset + dst_ofst);
246 
247       if (nouveau_bo_memtype(src->bo)) {
248          BEGIN_NV04(push, NV50_M2MF(TILING_POSITION_IN), 1);
249          PUSH_DATA (push, (sy << 16) | (src->x * cpp));
250       } else {
251          src_ofst += line_count * src->pitch;
252       }
253       if (nouveau_bo_memtype(dst->bo)) {
254          BEGIN_NV04(push, NV50_M2MF(TILING_POSITION_OUT), 1);
255          PUSH_DATA (push, (dy << 16) | (dst->x * cpp));
256       } else {
257          dst_ofst += line_count * dst->pitch;
258       }
259 
260       BEGIN_NV04(push, SUBC_M2MF(NV03_M2MF_LINE_LENGTH_IN), 4);
261       PUSH_DATA (push, nblocksx * cpp);
262       PUSH_DATA (push, line_count);
263       PUSH_DATA (push, (1 << 8) | (1 << 0));
264       PUSH_DATA (push, 0);
265 
266       height -= line_count;
267       sy += line_count;
268       dy += line_count;
269    }
270 
271    nouveau_bufctx_reset(bctx, 0);
272 }
273 
274 void
nv50_sifc_linear_u8(struct nouveau_context * nv,struct nouveau_bo * dst,unsigned offset,unsigned domain,unsigned size,const void * data)275 nv50_sifc_linear_u8(struct nouveau_context *nv,
276                     struct nouveau_bo *dst, unsigned offset, unsigned domain,
277                     unsigned size, const void *data)
278 {
279    struct nv50_context *nv50 = nv50_context(&nv->pipe);
280    struct nouveau_pushbuf *push = nv50->base.pushbuf;
281    uint32_t *src = (uint32_t *)data;
282    unsigned count = (size + 3) / 4;
283    unsigned xcoord = offset & 0xff;
284 
285    nouveau_bufctx_refn(nv50->bufctx, 0, dst, domain | NOUVEAU_BO_WR);
286    nouveau_pushbuf_bufctx(push, nv50->bufctx);
287    nouveau_pushbuf_validate(push);
288 
289    offset &= ~0xff;
290 
291    BEGIN_NV04(push, NV50_2D(DST_FORMAT), 2);
292    PUSH_DATA (push, G80_SURFACE_FORMAT_R8_UNORM);
293    PUSH_DATA (push, 1);
294    BEGIN_NV04(push, NV50_2D(DST_PITCH), 5);
295    PUSH_DATA (push, 262144);
296    PUSH_DATA (push, 65536);
297    PUSH_DATA (push, 1);
298    PUSH_DATAh(push, dst->offset + offset);
299    PUSH_DATA (push, dst->offset + offset);
300    BEGIN_NV04(push, NV50_2D(SIFC_BITMAP_ENABLE), 2);
301    PUSH_DATA (push, 0);
302    PUSH_DATA (push, G80_SURFACE_FORMAT_R8_UNORM);
303    BEGIN_NV04(push, NV50_2D(SIFC_WIDTH), 10);
304    PUSH_DATA (push, size);
305    PUSH_DATA (push, 1);
306    PUSH_DATA (push, 0);
307    PUSH_DATA (push, 1);
308    PUSH_DATA (push, 0);
309    PUSH_DATA (push, 1);
310    PUSH_DATA (push, 0);
311    PUSH_DATA (push, xcoord);
312    PUSH_DATA (push, 0);
313    PUSH_DATA (push, 0);
314 
315    while (count) {
316       unsigned nr = MIN2(count, NV04_PFIFO_MAX_PACKET_LEN);
317 
318       BEGIN_NI04(push, NV50_2D(SIFC_DATA), nr);
319       PUSH_DATAp(push, src, nr);
320 
321       src += nr;
322       count -= nr;
323    }
324 
325    nouveau_bufctx_reset(nv50->bufctx, 0);
326 }
327 
328 void
nv50_m2mf_copy_linear(struct nouveau_context * nv,struct nouveau_bo * dst,unsigned dstoff,unsigned dstdom,struct nouveau_bo * src,unsigned srcoff,unsigned srcdom,unsigned size)329 nv50_m2mf_copy_linear(struct nouveau_context *nv,
330                       struct nouveau_bo *dst, unsigned dstoff, unsigned dstdom,
331                       struct nouveau_bo *src, unsigned srcoff, unsigned srcdom,
332                       unsigned size)
333 {
334    struct nouveau_pushbuf *push = nv->pushbuf;
335    struct nouveau_bufctx *bctx = nv50_context(&nv->pipe)->bufctx;
336 
337    nouveau_bufctx_refn(bctx, 0, src, srcdom | NOUVEAU_BO_RD);
338    nouveau_bufctx_refn(bctx, 0, dst, dstdom | NOUVEAU_BO_WR);
339    nouveau_pushbuf_bufctx(push, bctx);
340    nouveau_pushbuf_validate(push);
341 
342    BEGIN_NV04(push, NV50_M2MF(LINEAR_IN), 1);
343    PUSH_DATA (push, 1);
344    BEGIN_NV04(push, NV50_M2MF(LINEAR_OUT), 1);
345    PUSH_DATA (push, 1);
346 
347    while (size) {
348       unsigned bytes = MIN2(size, 1 << 17);
349 
350       BEGIN_NV04(push, NV50_M2MF(OFFSET_IN_HIGH), 2);
351       PUSH_DATAh(push, src->offset + srcoff);
352       PUSH_DATAh(push, dst->offset + dstoff);
353       BEGIN_NV04(push, SUBC_M2MF(NV03_M2MF_OFFSET_IN), 2);
354       PUSH_DATA (push, src->offset + srcoff);
355       PUSH_DATA (push, dst->offset + dstoff);
356       BEGIN_NV04(push, SUBC_M2MF(NV03_M2MF_LINE_LENGTH_IN), 4);
357       PUSH_DATA (push, bytes);
358       PUSH_DATA (push, 1);
359       PUSH_DATA (push, (1 << 8) | (1 << 0));
360       PUSH_DATA (push, 0);
361 
362       srcoff += bytes;
363       dstoff += bytes;
364       size -= bytes;
365    }
366 
367    nouveau_bufctx_reset(bctx, 0);
368 }
369 
370 void *
nv50_miptree_transfer_map(struct pipe_context * pctx,struct pipe_resource * res,unsigned level,unsigned usage,const struct pipe_box * box,struct pipe_transfer ** ptransfer)371 nv50_miptree_transfer_map(struct pipe_context *pctx,
372                           struct pipe_resource *res,
373                           unsigned level,
374                           unsigned usage,
375                           const struct pipe_box *box,
376                           struct pipe_transfer **ptransfer)
377 {
378    struct nv50_context *nv50 = nv50_context(pctx);
379    struct nouveau_device *dev = nv50->screen->base.device;
380    const struct nv50_miptree *mt = nv50_miptree(res);
381    struct nv50_transfer *tx;
382    uint32_t size;
383    int ret;
384    unsigned flags = 0;
385 
386    if (usage & PIPE_MAP_DIRECTLY)
387       return NULL;
388 
389    tx = CALLOC_STRUCT(nv50_transfer);
390    if (!tx)
391       return NULL;
392 
393    pipe_resource_reference(&tx->base.resource, res);
394 
395    tx->base.level = level;
396    tx->base.usage = usage;
397    tx->base.box = *box;
398 
399    if (util_format_is_plain(res->format)) {
400       tx->nblocksx = box->width << mt->ms_x;
401       tx->nblocksy = box->height << mt->ms_y;
402    } else {
403       tx->nblocksx = util_format_get_nblocksx(res->format, box->width);
404       tx->nblocksy = util_format_get_nblocksy(res->format, box->height);
405    }
406 
407    tx->base.stride = tx->nblocksx * util_format_get_blocksize(res->format);
408    tx->base.layer_stride = tx->nblocksy * tx->base.stride;
409 
410    nv50_m2mf_rect_setup(&tx->rect[0], res, level, box->x, box->y, box->z);
411 
412    size = tx->base.layer_stride;
413 
414    ret = nouveau_bo_new(dev, NOUVEAU_BO_GART | NOUVEAU_BO_MAP, 0,
415                         size * tx->base.box.depth, NULL, &tx->rect[1].bo);
416    if (ret) {
417       FREE(tx);
418       return NULL;
419    }
420 
421    tx->rect[1].cpp = tx->rect[0].cpp;
422    tx->rect[1].width = tx->nblocksx;
423    tx->rect[1].height = tx->nblocksy;
424    tx->rect[1].depth = 1;
425    tx->rect[1].pitch = tx->base.stride;
426    tx->rect[1].domain = NOUVEAU_BO_GART;
427 
428    if (usage & PIPE_MAP_READ) {
429       unsigned base = tx->rect[0].base;
430       unsigned z = tx->rect[0].z;
431       unsigned i;
432       for (i = 0; i < box->depth; ++i) {
433          nv50_m2mf_transfer_rect(nv50, &tx->rect[1], &tx->rect[0],
434                                  tx->nblocksx, tx->nblocksy);
435          if (mt->layout_3d)
436             tx->rect[0].z++;
437          else
438             tx->rect[0].base += mt->layer_stride;
439          tx->rect[1].base += size;
440       }
441       tx->rect[0].z = z;
442       tx->rect[0].base = base;
443       tx->rect[1].base = 0;
444    }
445 
446    if (tx->rect[1].bo->map) {
447       *ptransfer = &tx->base;
448       return tx->rect[1].bo->map;
449    }
450 
451    if (usage & PIPE_MAP_READ)
452       flags = NOUVEAU_BO_RD;
453    if (usage & PIPE_MAP_WRITE)
454       flags |= NOUVEAU_BO_WR;
455 
456    ret = nouveau_bo_map(tx->rect[1].bo, flags, nv50->base.client);
457    if (ret) {
458       nouveau_bo_ref(NULL, &tx->rect[1].bo);
459       FREE(tx);
460       return NULL;
461    }
462 
463    *ptransfer = &tx->base;
464    return tx->rect[1].bo->map;
465 }
466 
467 void
nv50_miptree_transfer_unmap(struct pipe_context * pctx,struct pipe_transfer * transfer)468 nv50_miptree_transfer_unmap(struct pipe_context *pctx,
469                             struct pipe_transfer *transfer)
470 {
471    struct nv50_context *nv50 = nv50_context(pctx);
472    struct nv50_transfer *tx = (struct nv50_transfer *)transfer;
473    struct nv50_miptree *mt = nv50_miptree(tx->base.resource);
474    unsigned i;
475 
476    if (tx->base.usage & PIPE_MAP_WRITE) {
477       for (i = 0; i < tx->base.box.depth; ++i) {
478          nv50_m2mf_transfer_rect(nv50, &tx->rect[0], &tx->rect[1],
479                                  tx->nblocksx, tx->nblocksy);
480          if (mt->layout_3d)
481             tx->rect[0].z++;
482          else
483             tx->rect[0].base += mt->layer_stride;
484          tx->rect[1].base += tx->nblocksy * tx->base.stride;
485       }
486 
487       /* Allow the copies above to finish executing before freeing the source */
488       nouveau_fence_work(nv50->screen->base.fence.current,
489                          nouveau_fence_unref_bo, tx->rect[1].bo);
490    } else {
491       nouveau_bo_ref(NULL, &tx->rect[1].bo);
492    }
493 
494    pipe_resource_reference(&transfer->resource, NULL);
495 
496    FREE(tx);
497 }
498 
499 static void
nv50_cb_bo_push(struct nouveau_context * nv,struct nouveau_bo * bo,unsigned domain,unsigned bufid,unsigned offset,unsigned words,const uint32_t * data)500 nv50_cb_bo_push(struct nouveau_context *nv,
501                 struct nouveau_bo *bo, unsigned domain,
502                 unsigned bufid,
503                 unsigned offset, unsigned words,
504                 const uint32_t *data)
505 {
506    struct nouveau_pushbuf *push = nv->pushbuf;
507 
508    assert(!(offset & 3));
509 
510    while (words) {
511       unsigned nr = MIN2(words, NV04_PFIFO_MAX_PACKET_LEN);
512 
513       PUSH_SPACE(push, nr + 3);
514       PUSH_REFN (push, bo, NOUVEAU_BO_WR | domain);
515       BEGIN_NV04(push, NV50_3D(CB_ADDR), 1);
516       PUSH_DATA (push, (offset << 6) | bufid);
517       BEGIN_NI04(push, NV50_3D(CB_DATA(0)), nr);
518       PUSH_DATAp(push, data, nr);
519 
520       words -= nr;
521       data += nr;
522       offset += nr * 4;
523    }
524 }
525 
526 void
nv50_cb_push(struct nouveau_context * nv,struct nv04_resource * res,unsigned offset,unsigned words,const uint32_t * data)527 nv50_cb_push(struct nouveau_context *nv,
528              struct nv04_resource *res,
529              unsigned offset, unsigned words, const uint32_t *data)
530 {
531    struct nv50_context *nv50 = nv50_context(&nv->pipe);
532    struct nv50_constbuf *cb = NULL;
533    int s, bufid;
534    /* Go through all the constbuf binding points of this buffer and try to
535     * find one which contains the region to be updated.
536     */
537    for (s = 0; s < NV50_MAX_SHADER_STAGES && !cb; s++) {
538       uint16_t bindings = res->cb_bindings[s];
539       while (bindings) {
540          int i = ffs(bindings) - 1;
541          uint32_t cb_offset = nv50->constbuf[s][i].offset;
542 
543          bindings &= ~(1 << i);
544          if (cb_offset <= offset &&
545              cb_offset + nv50->constbuf[s][i].size >= offset + words * 4) {
546             cb = &nv50->constbuf[s][i];
547             bufid = s * 16 + i;
548             break;
549          }
550       }
551    }
552 
553    if (cb) {
554       nv50_cb_bo_push(nv, res->bo, res->domain,
555                       bufid, offset - cb->offset, words, data);
556    } else {
557       nv->push_data(nv, res->bo, res->offset + offset, res->domain,
558                     words * 4, data);
559    }
560 }
561