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
  30 static inline void
  31 nvc0_program_update_context_state(struct nvc0_context *nvc0,
  32                                   struct nvc0_program *prog, int stage)
  33 {
  34    struct nouveau_pushbuf *push = nvc0->base.pushbuf;
  35
  36    if (prog && prog->need_tls) {
  37       const uint32_t flags = NV_VRAM_DOMAIN(&nvc0->screen->base) | NOUVEAU_BO_RDWR;
  38       if (!nvc0->state.tls_required)
  39          BCTX_REFN_bo(nvc0->bufctx_3d, TLS, flags, nvc0->screen->tls);
  40       nvc0->state.tls_required |= 1 << stage;
  41    } else {
  42       if (nvc0->state.tls_required == (1 << stage))
  43          nouveau_bufctx_reset(nvc0->bufctx_3d, NVC0_BIND_TLS);
  44       nvc0->state.tls_required &= ~(1 << stage);
  45    }
  46
  47    if (prog && prog->immd_size) {
  48       BEGIN_NVC0(push, NVC0_3D(CB_SIZE), 3);
  49       /* NOTE: may overlap code of a different shader */
  50       PUSH_DATA (push, align(prog->immd_size, 0x100));
  51       PUSH_DATAh(push, nvc0->screen->text->offset + prog->immd_base);
  52       PUSH_DATA (push, nvc0->screen->text->offset + prog->immd_base);
  53       BEGIN_NVC0(push, NVC0_3D(CB_BIND(stage)), 1);
  54       PUSH_DATA (push, (14 << 4) | 1);
  55
  56       nvc0->state.c14_bound |= 1 << stage;
  57    } else
  58    if (nvc0->state.c14_bound & (1 << stage)) {
  59       BEGIN_NVC0(push, NVC0_3D(CB_BIND(stage)), 1);
  60       PUSH_DATA (push, (14 << 4) | 0);
  61
  62       nvc0->state.c14_bound &= ~(1 << stage);
  63    }
  64 }
  65
  66 static inline bool
  67 nvc0_program_validate(struct nvc0_context *nvc0, struct nvc0_program *prog)
  68 {
  69    if (prog->mem)
  70       return true;
  71
  72    if (!prog->translated) {
  73       prog->translated = nvc0_program_translate(
  74          prog, nvc0->screen->base.device->chipset);
  75       if (!prog->translated)
  76          return false;
  77    }
  78
  79    if (likely(prog->code_size))
  80       return nvc0_program_upload_code(nvc0, prog);
  81    return true; /* stream output info only */
  82 }
  83
  84 void
  85 nvc0_vertprog_validate(struct nvc0_context *nvc0)
  86 {
  87    struct nouveau_pushbuf *push = nvc0->base.pushbuf;
  88    struct nvc0_program *vp = nvc0->vertprog;
  89
  90    if (!nvc0_program_validate(nvc0, vp))
  91          return;
  92    nvc0_program_update_context_state(nvc0, vp, 0);
  93
  94    BEGIN_NVC0(push, NVC0_3D(SP_SELECT(1)), 2);
  95    PUSH_DATA (push, 0x11);
  96    PUSH_DATA (push, vp->code_base);
  97    BEGIN_NVC0(push, NVC0_3D(SP_GPR_ALLOC(1)), 1);
  98    PUSH_DATA (push, vp->num_gprs);
  99
 100    // BEGIN_NVC0(push, NVC0_3D_(0x163c), 1);
 101    // PUSH_DATA (push, 0);
 102 }
 103
 104 void
 105 nvc0_fragprog_validate(struct nvc0_context *nvc0)
 106 {
 107    struct nouveau_pushbuf *push = nvc0->base.pushbuf;
 108    struct nvc0_program *fp = nvc0->fragprog;
 109
 110    fp->fp.sample_interp = nvc0->min_samples > 1;
 111
 112    if (!nvc0_program_validate(nvc0, fp))
 113          return;
 114    nvc0_program_update_context_state(nvc0, fp, 4);
 115
 116    if (fp->fp.early_z != nvc0->state.early_z_forced) {
 117       nvc0->state.early_z_forced = fp->fp.early_z;
 118       IMMED_NVC0(push, NVC0_3D(FORCE_EARLY_FRAGMENT_TESTS), fp->fp.early_z);
 119    }
 120
 121    BEGIN_NVC0(push, NVC0_3D(SP_SELECT(5)), 2);
 122    PUSH_DATA (push, 0x51);
 123    PUSH_DATA (push, fp->code_base);
 124    BEGIN_NVC0(push, NVC0_3D(SP_GPR_ALLOC(5)), 1);
 125    PUSH_DATA (push, fp->num_gprs);
 126
 127    BEGIN_NVC0(push, SUBC_3D(0x0360), 2);
 128    PUSH_DATA (push, 0x20164010);
 129    PUSH_DATA (push, 0x20);
 130    BEGIN_NVC0(push, NVC0_3D(ZCULL_TEST_MASK), 1);
 131    PUSH_DATA (push, fp->flags[0]);
 132 }
 133
 134 void
 135 nvc0_tctlprog_validate(struct nvc0_context *nvc0)
 136 {
 137    struct nouveau_pushbuf *push = nvc0->base.pushbuf;
 138    struct nvc0_program *tp = nvc0->tctlprog;
 139
 140    if (tp && nvc0_program_validate(nvc0, tp)) {
 141       if (tp->tp.tess_mode != ~0) {
 142          BEGIN_NVC0(push, NVC0_3D(TESS_MODE), 1);
 143          PUSH_DATA (push, tp->tp.tess_mode);
 144       }
 145       BEGIN_NVC0(push, NVC0_3D(SP_SELECT(2)), 2);
 146       PUSH_DATA (push, 0x21);
 147       PUSH_DATA (push, tp->code_base);
 148       BEGIN_NVC0(push, NVC0_3D(SP_GPR_ALLOC(2)), 1);
 149       PUSH_DATA (push, tp->num_gprs);
 150    } else {
 151       tp = nvc0->tcp_empty;
 152       /* not a whole lot we can do to handle this failure */
 153       if (!nvc0_program_validate(nvc0, tp))
 154          assert(!"unable to validate empty tcp");
 155       BEGIN_NVC0(push, NVC0_3D(SP_SELECT(2)), 2);
 156       PUSH_DATA (push, 0x20);
 157       PUSH_DATA (push, tp->code_base);
 158    }
 159    nvc0_program_update_context_state(nvc0, tp, 1);
 160 }
 161
 162 void
 163 nvc0_tevlprog_validate(struct nvc0_context *nvc0)
 164 {
 165    struct nouveau_pushbuf *push = nvc0->base.pushbuf;
 166    struct nvc0_program *tp = nvc0->tevlprog;
 167
 168    if (tp && nvc0_program_validate(nvc0, tp)) {
 169       if (tp->tp.tess_mode != ~0) {
 170          BEGIN_NVC0(push, NVC0_3D(TESS_MODE), 1);
 171          PUSH_DATA (push, tp->tp.tess_mode);
 172       }
 173       BEGIN_NVC0(push, NVC0_3D(MACRO_TEP_SELECT), 1);
 174       PUSH_DATA (push, 0x31);
 175       BEGIN_NVC0(push, NVC0_3D(SP_START_ID(3)), 1);
 176       PUSH_DATA (push, tp->code_base);
 177       BEGIN_NVC0(push, NVC0_3D(SP_GPR_ALLOC(3)), 1);
 178       PUSH_DATA (push, tp->num_gprs);
 179    } else {
 180       BEGIN_NVC0(push, NVC0_3D(MACRO_TEP_SELECT), 1);
 181       PUSH_DATA (push, 0x30);
 182    }
 183    nvc0_program_update_context_state(nvc0, tp, 2);
 184 }
 185
 186 void
 187 nvc0_gmtyprog_validate(struct nvc0_context *nvc0)
 188 {
 189    struct nouveau_pushbuf *push = nvc0->base.pushbuf;
 190    struct nvc0_program *gp = nvc0->gmtyprog;
 191
 192    if (gp)
 193       nvc0_program_validate(nvc0, gp);
 194
 195    /* we allow GPs with no code for specifying stream output state only */
 196    if (gp && gp->code_size) {
 197       const bool gp_selects_layer = !!(gp->hdr[13] & (1 << 9));
 198
 199       BEGIN_NVC0(push, NVC0_3D(MACRO_GP_SELECT), 1);
 200       PUSH_DATA (push, 0x41);
 201       BEGIN_NVC0(push, NVC0_3D(SP_START_ID(4)), 1);
 202       PUSH_DATA (push, gp->code_base);
 203       BEGIN_NVC0(push, NVC0_3D(SP_GPR_ALLOC(4)), 1);
 204       PUSH_DATA (push, gp->num_gprs);
 205       BEGIN_NVC0(push, NVC0_3D(LAYER), 1);
 206       PUSH_DATA (push, gp_selects_layer ? NVC0_3D_LAYER_USE_GP : 0);
 207    } else {
 208       IMMED_NVC0(push, NVC0_3D(LAYER), 0);
 209       BEGIN_NVC0(push, NVC0_3D(MACRO_GP_SELECT), 1);
 210       PUSH_DATA (push, 0x40);
 211    }
 212    nvc0_program_update_context_state(nvc0, gp, 3);
 213 }
 214
 215 void
 216 nvc0_tfb_validate(struct nvc0_context *nvc0)
 217 {
 218    struct nouveau_pushbuf *push = nvc0->base.pushbuf;
 219    struct nvc0_transform_feedback_state *tfb;
 220    unsigned b;
 221
 222    if (nvc0->gmtyprog) tfb = nvc0->gmtyprog->tfb;
 223    else
 224    if (nvc0->tevlprog) tfb = nvc0->tevlprog->tfb;
 225    else
 226       tfb = nvc0->vertprog->tfb;
 227
 228    IMMED_NVC0(push, NVC0_3D(TFB_ENABLE), (tfb && nvc0->num_tfbbufs) ? 1 : 0);
 229
 230    if (tfb && tfb != nvc0->state.tfb) {
 231       for (b = 0; b < 4; ++b) {
 232          if (tfb->varying_count[b]) {
 233             unsigned n = (tfb->varying_count[b] + 3) / 4;
 234
 235             BEGIN_NVC0(push, NVC0_3D(TFB_STREAM(b)), 3);
 236             PUSH_DATA (push, tfb->stream[b]);
 237             PUSH_DATA (push, tfb->varying_count[b]);
 238             PUSH_DATA (push, tfb->stride[b]);
 239             BEGIN_NVC0(push, NVC0_3D(TFB_VARYING_LOCS(b, 0)), n);
 240             PUSH_DATAp(push, tfb->varying_index[b], n);
 241
 242             if (nvc0->tfbbuf[b])
 243                nvc0_so_target(nvc0->tfbbuf[b])->stride = tfb->stride[b];
 244          } else {
 245             IMMED_NVC0(push, NVC0_3D(TFB_VARYING_COUNT(b)), 0);
 246          }
 247       }
 248    }
 249    nvc0->state.tfb = tfb;
 250
 251    if (!(nvc0->dirty & NVC0_NEW_TFB_TARGETS))
 252       return;
 253    nouveau_bufctx_reset(nvc0->bufctx_3d, NVC0_BIND_TFB);
 254
 255    for (b = 0; b < nvc0->num_tfbbufs; ++b) {
 256       struct nvc0_so_target *targ = nvc0_so_target(nvc0->tfbbuf[b]);
 257       struct nv04_resource *buf;
 258
 259       if (!targ) {
 260          IMMED_NVC0(push, NVC0_3D(TFB_BUFFER_ENABLE(b)), 0);
 261          continue;
 262       }
 263
 264       if (tfb)
 265          targ->stride = tfb->stride[b];
 266
 267       buf = nv04_resource(targ->pipe.buffer);
 268
 269       BCTX_REFN(nvc0->bufctx_3d, TFB, buf, WR);
 270
 271       if (!(nvc0->tfbbuf_dirty & (1 << b)))
 272          continue;
 273
 274       if (!targ->clean)
 275          nvc0_query_fifo_wait(push, targ->pq);
 276       BEGIN_NVC0(push, NVC0_3D(TFB_BUFFER_ENABLE(b)), 5);
 277       PUSH_DATA (push, 1);
 278       PUSH_DATAh(push, buf->address + targ->pipe.buffer_offset);
 279       PUSH_DATA (push, buf->address + targ->pipe.buffer_offset);
 280       PUSH_DATA (push, targ->pipe.buffer_size);
 281       if (!targ->clean) {
 282          nvc0_query_pushbuf_submit(push, targ->pq, 0x4);
 283       } else {
 284          PUSH_DATA(push, 0); /* TFB_BUFFER_OFFSET */
 285          targ->clean = false;
 286       }
 287    }
 288    for (; b < 4; ++b)
 289       IMMED_NVC0(push, NVC0_3D(TFB_BUFFER_ENABLE(b)), 0);
 290 }