src/gallium/drivers/nouveau/nvc0/nvc0_shader_state.c

   1 /*
   2  * Copyright 2010 Christoph Bumiller
   3  *
   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:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  */
  22
  23 #include "pipe/p_context.h"
  24 #include "pipe/p_defines.h"
  25 #include "pipe/p_state.h"
  26 #include "util/u_inlines.h"
  27
  28 #include "nvc0/nvc0_context.h"
  29 #include "nvc0/nvc0_query_hw.h"
  30
  31 #include "nvc0/nvc0_compute.xml.h"
  32
  33 static inline void
  34 nvc0_program_update_context_state(struct nvc0_context *nvc0,
  35                                   struct nvc0_program *prog, int stage)
  36 {
  37    if (prog && prog->need_tls) {
  38       const uint32_t flags = NV_VRAM_DOMAIN(&nvc0->screen->base) | NOUVEAU_BO_RDWR;
  39       if (!nvc0->state.tls_required)
  40          BCTX_REFN_bo(nvc0->bufctx_3d, 3D_TLS, flags, nvc0->screen->tls);
  41       nvc0->state.tls_required |= 1 << stage;
  42    } else {
  43       if (nvc0->state.tls_required == (1 << stage))
  44          nouveau_bufctx_reset(nvc0->bufctx_3d, NVC0_BIND_3D_TLS);
  45       nvc0->state.tls_required &= ~(1 << stage);
  46    }
  47 }
  48
  49 static inline bool
  50 nvc0_program_validate(struct nvc0_context *nvc0, struct nvc0_program *prog)
  51 {
  52    if (prog->mem)
  53       return true;
  54
  55    if (!prog->translated) {
  56       prog->translated = nvc0_program_translate(
  57          prog, nvc0->screen->base.device->chipset, &nvc0->base.debug);
  58       if (!prog->translated)
  59          return false;
  60    }
  61
  62    if (likely(prog->code_size))
  63       return nvc0_program_upload(nvc0, prog);
  64    return true; /* stream output info only */
  65 }
  66
  67 void
  68 nvc0_vertprog_validate(struct nvc0_context *nvc0)
  69 {
  70    struct nouveau_pushbuf *push = nvc0->base.pushbuf;
  71    struct nvc0_program *vp = nvc0->vertprog;
  72
  73    if (!nvc0_program_validate(nvc0, vp))
  74          return;
  75    nvc0_program_update_context_state(nvc0, vp, 0);
  76
  77    BEGIN_NVC0(push, NVC0_3D(SP_SELECT(1)), 2);
  78    PUSH_DATA (push, 0x11);
  79    PUSH_DATA (push, vp->code_base);
  80    BEGIN_NVC0(push, NVC0_3D(SP_GPR_ALLOC(1)), 1);
  81    PUSH_DATA (push, vp->num_gprs);
  82
  83    // BEGIN_NVC0(push, NVC0_3D_(0x163c), 1);
  84    // PUSH_DATA (push, 0);
  85 }
  86
  87 void
  88 nvc0_fragprog_validate(struct nvc0_context *nvc0)
  89 {
  90    struct nouveau_pushbuf *push = nvc0->base.pushbuf;
  91    struct nvc0_program *fp = nvc0->fragprog;
  92    struct pipe_rasterizer_state *rast = &nvc0->rast->pipe;
  93
  94    if (fp->fp.force_persample_interp != rast->force_persample_interp) {
  95       /* Force the program to be reuploaded, which will trigger interp fixups
  96        * to get applied
  97        */
  98       if (fp->mem)
  99          nouveau_heap_free(&fp->mem);
 100
 101       fp->fp.force_persample_interp = rast->force_persample_interp;
 102    }
 103
 104    /* Shade model works well enough when both colors follow it. However if one
 105     * (or both) is explicitly set, then we have to go the patching route.
 106     */
 107    bool has_explicit_color = fp->fp.colors &&
 108       (((fp->fp.colors & 1) && !fp->fp.color_interp[0]) ||
 109        ((fp->fp.colors & 2) && !fp->fp.color_interp[1]));
 110    bool hwflatshade = false;
 111    if (has_explicit_color && fp->fp.flatshade != rast->flatshade) {
 112       /* Force re-upload */
 113       if (fp->mem)
 114          nouveau_heap_free(&fp->mem);
 115
 116       fp->fp.flatshade = rast->flatshade;
 117
 118       /* Always smooth-shade in this mode, the shader will decide on its own
 119        * when to flat-shade.
 120        */
 121    } else if (!has_explicit_color) {
 122       hwflatshade = rast->flatshade;
 123
 124       /* No need to binary-patch the shader each time, make sure that it's set
 125        * up for the default behaviour.
 126        */
 127       fp->fp.flatshade = 0;
 128    }
 129
 130    if (hwflatshade != nvc0->state.flatshade) {
 131       nvc0->state.flatshade = hwflatshade;
 132       BEGIN_NVC0(push, NVC0_3D(SHADE_MODEL), 1);
 133       PUSH_DATA (push, hwflatshade ? NVC0_3D_SHADE_MODEL_FLAT :
 134                                      NVC0_3D_SHADE_MODEL_SMOOTH);
 135    }
 136
 137    if (fp->mem && !(nvc0->dirty_3d & NVC0_NEW_3D_FRAGPROG)) {
 138       return;
 139    }
 140
 141    if (!nvc0_program_validate(nvc0, fp))
 142          return;
 143    nvc0_program_update_context_state(nvc0, fp, 4);
 144
 145    if (fp->fp.early_z != nvc0->state.early_z_forced) {
 146       nvc0->state.early_z_forced = fp->fp.early_z;
 147       IMMED_NVC0(push, NVC0_3D(FORCE_EARLY_FRAGMENT_TESTS), fp->fp.early_z);
 148    }
 149    if (fp->fp.post_depth_coverage != nvc0->state.post_depth_coverage) {
 150       nvc0->state.post_depth_coverage = fp->fp.post_depth_coverage;
 151       IMMED_NVC0(push, NVC0_3D(POST_DEPTH_COVERAGE),
 152                  fp->fp.post_depth_coverage);
 153    }
 154
 155    BEGIN_NVC0(push, NVC0_3D(SP_SELECT(5)), 2);
 156    PUSH_DATA (push, 0x51);
 157    PUSH_DATA (push, fp->code_base);
 158    BEGIN_NVC0(push, NVC0_3D(SP_GPR_ALLOC(5)), 1);
 159    PUSH_DATA (push, fp->num_gprs);
 160
 161    BEGIN_NVC0(push, SUBC_3D(0x0360), 2);
 162    PUSH_DATA (push, 0x20164010);
 163    PUSH_DATA (push, 0x20);
 164    BEGIN_NVC0(push, NVC0_3D(ZCULL_TEST_MASK), 1);
 165    PUSH_DATA (push, fp->flags[0]);
 166 }
 167
 168 void
 169 nvc0_tctlprog_validate(struct nvc0_context *nvc0)
 170 {
 171    struct nouveau_pushbuf *push = nvc0->base.pushbuf;
 172    struct nvc0_program *tp = nvc0->tctlprog;
 173
 174    if (tp && nvc0_program_validate(nvc0, tp)) {
 175       if (tp->tp.tess_mode != ~0) {
 176          BEGIN_NVC0(push, NVC0_3D(TESS_MODE), 1);
 177          PUSH_DATA (push, tp->tp.tess_mode);
 178       }
 179       BEGIN_NVC0(push, NVC0_3D(SP_SELECT(2)), 2);
 180       PUSH_DATA (push, 0x21);
 181       PUSH_DATA (push, tp->code_base);
 182       BEGIN_NVC0(push, NVC0_3D(SP_GPR_ALLOC(2)), 1);
 183       PUSH_DATA (push, tp->num_gprs);
 184    } else {
 185       tp = nvc0->tcp_empty;
 186       /* not a whole lot we can do to handle this failure */
 187       if (!nvc0_program_validate(nvc0, tp))
 188          assert(!"unable to validate empty tcp");
 189       BEGIN_NVC0(push, NVC0_3D(SP_SELECT(2)), 2);
 190       PUSH_DATA (push, 0x20);
 191       PUSH_DATA (push, tp->code_base);
 192    }
 193    nvc0_program_update_context_state(nvc0, tp, 1);
 194 }
 195
 196 void
 197 nvc0_tevlprog_validate(struct nvc0_context *nvc0)
 198 {
 199    struct nouveau_pushbuf *push = nvc0->base.pushbuf;
 200    struct nvc0_program *tp = nvc0->tevlprog;
 201
 202    if (tp && nvc0_program_validate(nvc0, tp)) {
 203       if (tp->tp.tess_mode != ~0) {
 204          BEGIN_NVC0(push, NVC0_3D(TESS_MODE), 1);
 205          PUSH_DATA (push, tp->tp.tess_mode);
 206       }
 207       BEGIN_NVC0(push, NVC0_3D(MACRO_TEP_SELECT), 1);
 208       PUSH_DATA (push, 0x31);
 209       BEGIN_NVC0(push, NVC0_3D(SP_START_ID(3)), 1);
 210       PUSH_DATA (push, tp->code_base);
 211       BEGIN_NVC0(push, NVC0_3D(SP_GPR_ALLOC(3)), 1);
 212       PUSH_DATA (push, tp->num_gprs);
 213    } else {
 214       BEGIN_NVC0(push, NVC0_3D(MACRO_TEP_SELECT), 1);
 215       PUSH_DATA (push, 0x30);
 216    }
 217    nvc0_program_update_context_state(nvc0, tp, 2);
 218 }
 219
 220 void
 221 nvc0_gmtyprog_validate(struct nvc0_context *nvc0)
 222 {
 223    struct nouveau_pushbuf *push = nvc0->base.pushbuf;
 224    struct nvc0_program *gp = nvc0->gmtyprog;
 225
 226    /* we allow GPs with no code for specifying stream output state only */
 227    if (gp && nvc0_program_validate(nvc0, gp) && gp->code_size) {
 228       BEGIN_NVC0(push, NVC0_3D(MACRO_GP_SELECT), 1);
 229       PUSH_DATA (push, 0x41);
 230       BEGIN_NVC0(push, NVC0_3D(SP_START_ID(4)), 1);
 231       PUSH_DATA (push, gp->code_base);
 232       BEGIN_NVC0(push, NVC0_3D(SP_GPR_ALLOC(4)), 1);
 233       PUSH_DATA (push, gp->num_gprs);
 234    } else {
 235       BEGIN_NVC0(push, NVC0_3D(MACRO_GP_SELECT), 1);
 236       PUSH_DATA (push, 0x40);
 237    }
 238    nvc0_program_update_context_state(nvc0, gp, 3);
 239 }
 240
 241 void
 242 nvc0_compprog_validate(struct nvc0_context *nvc0)
 243 {
 244    struct nouveau_pushbuf *push = nvc0->base.pushbuf;
 245    struct nvc0_program *cp = nvc0->compprog;
 246
 247    if (cp && !nvc0_program_validate(nvc0, cp))
 248       return;
 249
 250    BEGIN_NVC0(push, NVC0_CP(FLUSH), 1);
 251    PUSH_DATA (push, NVC0_COMPUTE_FLUSH_CODE);
 252 }
 253
 254 void
 255 nvc0_layer_validate(struct nvc0_context *nvc0)
 256 {
 257    struct nouveau_pushbuf *push = nvc0->base.pushbuf;
 258    struct nvc0_program *last;
 259    bool prog_selects_layer = false;
 260
 261    if (nvc0->gmtyprog)
 262       last = nvc0->gmtyprog;
 263    else if (nvc0->tevlprog)
 264       last = nvc0->tevlprog;
 265    else
 266       last = nvc0->vertprog;
 267
 268    if (last)
 269       prog_selects_layer = !!(last->hdr[13] & (1 << 9));
 270
 271    BEGIN_NVC0(push, NVC0_3D(LAYER), 1);
 272    PUSH_DATA (push, prog_selects_layer ? NVC0_3D_LAYER_USE_GP : 0);
 273 }
 274
 275 void
 276 nvc0_tfb_validate(struct nvc0_context *nvc0)
 277 {
 278    struct nouveau_pushbuf *push = nvc0->base.pushbuf;
 279    struct nvc0_transform_feedback_state *tfb;
 280    unsigned b;
 281
 282    if (nvc0->gmtyprog) tfb = nvc0->gmtyprog->tfb;
 283    else
 284    if (nvc0->tevlprog) tfb = nvc0->tevlprog->tfb;
 285    else
 286       tfb = nvc0->vertprog->tfb;
 287
 288    IMMED_NVC0(push, NVC0_3D(TFB_ENABLE), (tfb && nvc0->num_tfbbufs) ? 1 : 0);
 289
 290    if (tfb && tfb != nvc0->state.tfb) {
 291       for (b = 0; b < 4; ++b) {
 292          if (tfb->varying_count[b]) {
 293             unsigned n = (tfb->varying_count[b] + 3) / 4;
 294
 295             BEGIN_NVC0(push, NVC0_3D(TFB_STREAM(b)), 3);
 296             PUSH_DATA (push, tfb->stream[b]);
 297             PUSH_DATA (push, tfb->varying_count[b]);
 298             PUSH_DATA (push, tfb->stride[b]);
 299             BEGIN_NVC0(push, NVC0_3D(TFB_VARYING_LOCS(b, 0)), n);
 300             PUSH_DATAp(push, tfb->varying_index[b], n);
 301
 302             if (nvc0->tfbbuf[b])
 303                nvc0_so_target(nvc0->tfbbuf[b])->stride = tfb->stride[b];
 304          } else {
 305             IMMED_NVC0(push, NVC0_3D(TFB_VARYING_COUNT(b)), 0);
 306          }
 307       }
 308    }
 309    nvc0->state.tfb = tfb;
 310
 311    if (!(nvc0->dirty_3d & NVC0_NEW_3D_TFB_TARGETS))
 312       return;
 313
 314    for (b = 0; b < nvc0->num_tfbbufs; ++b) {
 315       struct nvc0_so_target *targ = nvc0_so_target(nvc0->tfbbuf[b]);
 316       struct nv04_resource *buf;
 317
 318       if (!targ) {
 319          IMMED_NVC0(push, NVC0_3D(TFB_BUFFER_ENABLE(b)), 0);
 320          continue;
 321       }
 322
 323       if (tfb)
 324          targ->stride = tfb->stride[b];
 325
 326       buf = nv04_resource(targ->pipe.buffer);
 327
 328       BCTX_REFN(nvc0->bufctx_3d, 3D_TFB, buf, WR);
 329
 330       if (!(nvc0->tfbbuf_dirty & (1 << b)))
 331          continue;
 332
 333       if (!targ->clean)
 334          nvc0_hw_query_fifo_wait(nvc0, nvc0_query(targ->pq));
 335       nouveau_pushbuf_space(push, 0, 0, 1);
 336       BEGIN_NVC0(push, NVC0_3D(TFB_BUFFER_ENABLE(b)), 5);
 337       PUSH_DATA (push, 1);
 338       PUSH_DATAh(push, buf->address + targ->pipe.buffer_offset);
 339       PUSH_DATA (push, buf->address + targ->pipe.buffer_offset);
 340       PUSH_DATA (push, targ->pipe.buffer_size);
 341       if (!targ->clean) {
 342          nvc0_hw_query_pushbuf_submit(push, nvc0_query(targ->pq), 0x4);
 343       } else {
 344          PUSH_DATA(push, 0); /* TFB_BUFFER_OFFSET */
 345          targ->clean = false;
 346       }
 347    }
 348    for (; b < 4; ++b)
 349       IMMED_NVC0(push, NVC0_3D(TFB_BUFFER_ENABLE(b)), 0);
 350 }