nv50: support for geometry programs in nv50_program
[mesa.git] / src / gallium / drivers / nv50 / nv50_program.c
index 83cf693fc1855bfbf2dc9e8f26ab2da3faa9b806..6647f759b5abb428f7da2d417004077d6cc568e4 100644 (file)
@@ -1718,6 +1718,18 @@ emit_ret(struct nv50_pc *pc, int pred, unsigned cc)
        emit_control_flow(pc, 0x3, pred, cc);
 }
 
+static void
+emit_prim_cmd(struct nv50_pc *pc, unsigned cmd)
+{
+       struct nv50_program_exec *e = exec(pc);
+
+       e->inst[0] = 0xf0000000 | (cmd << 9);
+       e->inst[1] = 0xc0000000;
+       set_long(pc, e);
+
+       emit(pc, e);
+}
+
 #define QOP_ADD 0
 #define QOP_SUBR 1
 #define QOP_SUB 2
@@ -2711,6 +2723,9 @@ nv50_program_tx_insn(struct nv50_pc *pc,
                pc->if_insn[pc->if_lvl++] = pc->p->exec_tail;
                terminate_mbb(pc);
                break;
+       case TGSI_OPCODE_EMIT:
+               emit_prim_cmd(pc, 1);
+               break;
        case TGSI_OPCODE_ENDIF:
                pc->if_insn[--pc->if_lvl]->param.index = pc->p->exec_size;
 
@@ -2734,6 +2749,9 @@ nv50_program_tx_insn(struct nv50_pc *pc,
                pc->loop_brka[pc->loop_lvl]->param.index = pc->p->exec_size;
                terminate_mbb(pc);
                break;
+       case TGSI_OPCODE_ENDPRIM:
+               emit_prim_cmd(pc, 2);
+               break;
        case TGSI_OPCODE_ENDSUB:
                assert(pc->in_subroutine);
                terminate_mbb(pc);
@@ -3449,6 +3467,24 @@ load_frontfacing(struct nv50_pc *pc, struct nv50_reg *a)
        FREE(one);
 }
 
+static void
+copy_semantic_info(struct nv50_program *p)
+{
+       unsigned i, id;
+
+       for (i = 0; i < p->cfg.in_nr; ++i) {
+               id = p->cfg.in[i].id;
+               p->cfg.in[i].sn = p->info.input_semantic_name[id];
+               p->cfg.in[i].si = p->info.input_semantic_index[id];
+       }
+
+       for (i = 0; i < p->cfg.out_nr; ++i) {
+               id = p->cfg.out[i].id;
+               p->cfg.out[i].sn = p->info.output_semantic_name[id];
+               p->cfg.out[i].si = p->info.output_semantic_index[id];
+       }
+}
+
 static boolean
 nv50_program_tx_prep(struct nv50_pc *pc)
 {
@@ -3495,13 +3531,13 @@ nv50_program_tx_prep(struct nv50_pc *pc)
                                switch (d->Semantic.Name) {
                                case TGSI_SEMANTIC_BCOLOR:
                                        p->cfg.two_side[si].hw = first;
-                                       if (p->cfg.io_nr > first)
-                                               p->cfg.io_nr = first;
+                                       if (p->cfg.out_nr > first)
+                                               p->cfg.out_nr = first;
                                        break;
                                case TGSI_SEMANTIC_PSIZE:
                                        p->cfg.psiz = first;
-                                       if (p->cfg.io_nr > first)
-                                               p->cfg.io_nr = first;
+                                       if (p->cfg.out_nr > first)
+                                               p->cfg.out_nr = first;
                                        break;
                                case TGSI_SEMANTIC_EDGEFLAG:
                                        pc->edgeflag_out = first;
@@ -3561,68 +3597,86 @@ nv50_program_tx_prep(struct nv50_pc *pc)
                }
        }
 
-       if (p->type == PIPE_SHADER_VERTEX) {
+       if (p->type == PIPE_SHADER_VERTEX || p->type == PIPE_SHADER_GEOMETRY) {
                int rid = 0;
 
-               for (i = 0; i < pc->attr_nr * 4; ++i) {
-                       if (pc->attr[i].acc) {
-                               pc->attr[i].hw = rid++;
-                               p->cfg.attr[i / 32] |= 1 << (i % 32);
+               if (p->type == PIPE_SHADER_GEOMETRY) {
+                       for (i = 0; i < pc->attr_nr; ++i) {
+                               p->cfg.in[i].hw = rid;
+                               p->cfg.in[i].id = i;
+
+                               for (c = 0; c < 4; ++c) {
+                                       int n = i * 4 + c;
+                                       if (!pc->attr[n].acc)
+                                               continue;
+                                       pc->attr[n].hw = rid++;
+                                       p->cfg.in[i].mask |= 1 << c;
+                               }
+                       }
+               } else {
+                       for (i = 0; i < pc->attr_nr * 4; ++i) {
+                               if (pc->attr[i].acc) {
+                                       pc->attr[i].hw = rid++;
+                                       p->cfg.attr[i / 32] |= 1 << (i % 32);
+                               }
                        }
                }
 
                for (i = 0, rid = 0; i < pc->result_nr; ++i) {
-                       p->cfg.io[i].hw = rid;
-                       p->cfg.io[i].id = i;
+                       p->cfg.out[i].hw = rid;
+                       p->cfg.out[i].id = i;
 
                        for (c = 0; c < 4; ++c) {
                                int n = i * 4 + c;
                                if (!pc->result[n].acc)
                                        continue;
                                pc->result[n].hw = rid++;
-                               p->cfg.io[i].mask |= 1 << c;
+                               p->cfg.out[i].mask |= 1 << c;
                        }
                }
 
                for (c = 0; c < 2; ++c)
                        if (p->cfg.two_side[c].hw < 0x40)
-                               p->cfg.two_side[c] = p->cfg.io[
+                               p->cfg.two_side[c] = p->cfg.out[
                                        p->cfg.two_side[c].hw];
 
                if (p->cfg.psiz < 0x40)
-                       p->cfg.psiz = p->cfg.io[p->cfg.psiz].hw;
+                       p->cfg.psiz = p->cfg.out[p->cfg.psiz].hw;
+
+               copy_semantic_info(p);
        } else
        if (p->type == PIPE_SHADER_FRAGMENT) {
-               int rid, aid;
+               int rid, aid, base;
                unsigned n = 0, m = pc->attr_nr - flat_nr;
 
                pc->allow32 = TRUE;
 
-               int base = (TGSI_SEMANTIC_POSITION ==
-                           p->info.input_semantic_name[0]) ? 0 : 1;
+               base = (TGSI_SEMANTIC_POSITION ==
+                       p->info.input_semantic_name[0]) ? 0 : 1;
 
                /* non-flat interpolants have to be mapped to
                 * the lower hardware IDs, so sort them:
                 */
                for (i = 0; i < pc->attr_nr; i++) {
                        if (pc->interp_mode[i] == INTERP_FLAT)
-                               p->cfg.io[m++].id = i;
+                               p->cfg.in[m++].id = i;
                        else {
                                if (!(pc->interp_mode[i] & INTERP_PERSPECTIVE))
-                                       p->cfg.io[n].linear = TRUE;
-                               p->cfg.io[n++].id = i;
+                                       p->cfg.in[n].linear = TRUE;
+                               p->cfg.in[n++].id = i;
                        }
                }
+               copy_semantic_info(p);
 
                if (!base) /* set w-coordinate mask from perspective interp */
-                       p->cfg.io[0].mask |= p->cfg.regs[1] >> 24;
+                       p->cfg.in[0].mask |= p->cfg.regs[1] >> 24;
 
                aid = popcnt4( /* if fcrd isn't contained in cfg.io */
-                       base ? (p->cfg.regs[1] >> 24) : p->cfg.io[0].mask);
+                       base ? (p->cfg.regs[1] >> 24) : p->cfg.in[0].mask);
 
                for (n = 0; n < pc->attr_nr; ++n) {
-                       p->cfg.io[n].hw = rid = aid;
-                       i = p->cfg.io[n].id;
+                       p->cfg.in[n].hw = rid = aid;
+                       i = p->cfg.in[n].id;
 
                        if (p->info.input_semantic_name[n] ==
                            TGSI_SEMANTIC_FACE) {
@@ -3634,15 +3688,15 @@ nv50_program_tx_prep(struct nv50_pc *pc)
                                if (!pc->attr[i * 4 + c].acc)
                                        continue;
                                pc->attr[i * 4 + c].rhw = rid++;
-                               p->cfg.io[n].mask |= 1 << c;
+                               p->cfg.in[n].mask |= 1 << c;
 
                                load_interpolant(pc, &pc->attr[i * 4 + c]);
                        }
-                       aid += popcnt4(p->cfg.io[n].mask);
+                       aid += popcnt4(p->cfg.in[n].mask);
                }
 
                if (!base)
-                       p->cfg.regs[1] |= p->cfg.io[0].mask << 24;
+                       p->cfg.regs[1] |= p->cfg.in[0].mask << 24;
 
                m = popcnt4(p->cfg.regs[1] >> 24);
 
@@ -3652,30 +3706,23 @@ nv50_program_tx_prep(struct nv50_pc *pc)
                p->cfg.regs[1] |= aid - m;
 
                if (flat_nr) {
-                       i = p->cfg.io[pc->attr_nr - flat_nr].hw;
+                       i = p->cfg.in[pc->attr_nr - flat_nr].hw;
                        p->cfg.regs[1] |= (i - m) << 16;
                } else
                        p->cfg.regs[1] |= p->cfg.regs[1] << 16;
 
                /* mark color semantic for light-twoside */
-               n = 0x40;
-               for (i = 0; i < pc->attr_nr; i++) {
-                       ubyte si, sn;
-
-                       sn = p->info.input_semantic_name[p->cfg.io[i].id];
-                       si = p->info.input_semantic_index[p->cfg.io[i].id];
-
-                       if (sn == TGSI_SEMANTIC_COLOR) {
-                               p->cfg.two_side[si] = p->cfg.io[i];
-
-                               /* increase colour count */
-                               p->cfg.regs[0] += popcnt4(
-                                       p->cfg.two_side[si].mask) << 16;
-
-                               n = MIN2(n, p->cfg.io[i].hw - m);
+               n = 0x80;
+               for (i = 0; i < p->cfg.in_nr; i++) {
+                       if (p->cfg.in[i].sn == TGSI_SEMANTIC_COLOR) {
+                               n = MIN2(n, p->cfg.in[i].hw - m);
+                               p->cfg.two_side[p->cfg.in[i].si] = p->cfg.in[i];
+
+                               p->cfg.regs[0] += /* increase colour count */
+                                       popcnt4(p->cfg.in[i].mask) << 16;
                        }
                }
-               if (n < 0x40)
+               if (n < 0x80)
                        p->cfg.regs[0] += n;
 
                /* Initialize FP results:
@@ -3737,6 +3784,23 @@ free_nv50_pc(struct nv50_pc *pc)
        FREE(pc);
 }
 
+static INLINE uint32_t
+nv50_map_gs_output_prim(unsigned pprim)
+{
+       switch (pprim) {
+       case PIPE_PRIM_POINTS:
+               return NV50TCL_GP_OUTPUT_PRIMITIVE_TYPE_POINTS;
+       case PIPE_PRIM_LINE_STRIP:
+               return NV50TCL_GP_OUTPUT_PRIMITIVE_TYPE_LINE_STRIP;
+       case PIPE_PRIM_TRIANGLE_STRIP:
+               return NV50TCL_GP_OUTPUT_PRIMITIVE_TYPE_TRIANGLE_STRIP;
+       default:
+               NOUVEAU_ERR("invalid GS_OUTPUT_PRIMITIVE: %u\n", pprim);
+               abort();
+               return 0;
+       }
+}
+
 static boolean
 ctor_nv50_pc(struct nv50_pc *pc, struct nv50_program *p)
 {
@@ -3758,17 +3822,44 @@ ctor_nv50_pc(struct nv50_pc *pc, struct nv50_program *p)
 
        p->cfg.edgeflag_in = pc->edgeflag_out = 0xff;
 
+       for (i = 0; i < p->info.num_properties; ++i) {
+               unsigned *data = &p->info.properties[i].data[0];
+
+               switch (p->info.properties[i].name) {
+               case TGSI_PROPERTY_GS_OUTPUT_PRIM:
+                       p->cfg.prim_type = nv50_map_gs_output_prim(data[0]);
+                       break;
+               case TGSI_PROPERTY_GS_MAX_VERTICES:
+                       p->cfg.vert_count = data[0];
+                       break;
+               default:
+                       break;
+               }
+       }
+
        switch (p->type) {
        case PIPE_SHADER_VERTEX:
                p->cfg.psiz = 0x40;
                p->cfg.clpd = 0x40;
-               p->cfg.io_nr = pc->result_nr;
+               p->cfg.out_nr = pc->result_nr;
+               break;
+       case PIPE_SHADER_GEOMETRY:
+               assert(p->cfg.prim_type);
+               assert(p->cfg.vert_count);
+
+               p->cfg.psiz = 0x80;
+               p->cfg.clpd = 0x80;
+               p->cfg.out_nr = pc->result_nr;
+               p->cfg.in_nr = pc->attr_nr;
+
+               p->cfg.two_side[0].hw = 0x80;
+               p->cfg.two_side[1].hw = 0x80;
                break;
        case PIPE_SHADER_FRAGMENT:
                rtype[0] = rtype[1] = P_TEMP;
 
                p->cfg.regs[0] = 0x01000004;
-               p->cfg.io_nr = pc->attr_nr;
+               p->cfg.in_nr = pc->attr_nr;
 
                if (p->info.writes_z) {
                        p->cfg.regs[2] |= 0x00000100;
@@ -3988,13 +4079,17 @@ nv50_program_validate_data(struct nv50_context *nv50, struct nv50_program *p)
 
        if (p->param_nr) {
                unsigned cb;
-               uint32_t *map = pipe_buffer_map(pscreen, nv50->constbuf[p->type],
+               uint32_t *map = pipe_buffer_map(pscreen,
+                                               nv50->constbuf[p->type],
                                                PIPE_BUFFER_USAGE_CPU_READ);
-
-               if (p->type == PIPE_SHADER_VERTEX)
+               switch (p->type) {
+               case PIPE_SHADER_GEOMETRY: cb = NV50_CB_PGP; break;
+               case PIPE_SHADER_FRAGMENT: cb = NV50_CB_PFP; break;
+               default:
                        cb = NV50_CB_PVP;
-               else
-                       cb = NV50_CB_PFP;
+                       assert(p->type == PIPE_SHADER_VERTEX);
+                       break;
+               }
 
                nv50_program_upload_data(nv50, map, 0, p->param_nr, cb);
                pipe_buffer_unmap(pscreen, nv50->constbuf[p->type]);
@@ -4088,19 +4183,18 @@ nv50_vertprog_validate(struct nv50_context *nv50)
        nv50_program_validate_data(nv50, p);
        nv50_program_validate_code(nv50, p);
 
-       so = so_new(5, 8, 2);
+       so = so_new(5, 7, 2);
        so_method(so, tesla, NV50TCL_VP_ADDRESS_HIGH, 2);
        so_reloc (so, p->bo, 0, NOUVEAU_BO_VRAM | NOUVEAU_BO_RD |
-                     NOUVEAU_BO_HIGH, 0, 0);
+                 NOUVEAU_BO_HIGH, 0, 0);
        so_reloc (so, p->bo, 0, NOUVEAU_BO_VRAM | NOUVEAU_BO_RD |
-                     NOUVEAU_BO_LOW, 0, 0);
+                 NOUVEAU_BO_LOW, 0, 0);
        so_method(so, tesla, NV50TCL_VP_ATTR_EN_0, 2);
        so_data  (so, p->cfg.attr[0]);
        so_data  (so, p->cfg.attr[1]);
        so_method(so, tesla, NV50TCL_VP_REG_ALLOC_RESULT, 1);
        so_data  (so, p->cfg.high_result);
-       so_method(so, tesla, NV50TCL_VP_RESULT_MAP_SIZE, 2);
-       so_data  (so, p->cfg.high_result); //8);
+       so_method(so, tesla, NV50TCL_VP_REG_ALLOC_TEMP, 1);
        so_data  (so, p->cfg.high_temp);
        so_method(so, tesla, NV50TCL_VP_START_ID, 1);
        so_data  (so, 0); /* program start offset */
@@ -4144,42 +4238,74 @@ nv50_fragprog_validate(struct nv50_context *nv50)
        so_ref(NULL, &so);
 }
 
+void
+nv50_geomprog_validate(struct nv50_context *nv50)
+{
+       struct nouveau_grobj *tesla = nv50->screen->tesla;
+       struct nv50_program *p = nv50->geomprog;
+       struct nouveau_stateobj *so;
+
+       if (!p->translated) {
+               nv50_program_validate(nv50, p);
+               if (!p->translated)
+                       assert(0);
+       }
+
+       nv50_program_validate_data(nv50, p);
+       nv50_program_validate_code(nv50, p);
+
+       so = so_new(6, 7, 2);
+       so_method(so, tesla, NV50TCL_GP_ADDRESS_HIGH, 2);
+       so_reloc (so, p->bo, 0, NOUVEAU_BO_VRAM | NOUVEAU_BO_RD |
+                 NOUVEAU_BO_HIGH, 0, 0);
+       so_reloc (so, p->bo, 0, NOUVEAU_BO_VRAM | NOUVEAU_BO_RD |
+                 NOUVEAU_BO_LOW, 0, 0);
+       so_method(so, tesla, NV50TCL_GP_REG_ALLOC_TEMP, 1);
+       so_data  (so, p->cfg.high_temp);
+       so_method(so, tesla, NV50TCL_GP_REG_ALLOC_RESULT, 1);
+       so_data  (so, p->cfg.high_result);
+       so_method(so, tesla, NV50TCL_GP_OUTPUT_PRIMITIVE_TYPE, 1);
+       so_data  (so, p->cfg.prim_type);
+       so_method(so, tesla, NV50TCL_GP_VERTEX_OUTPUT_COUNT, 1);
+       so_data  (so, p->cfg.vert_count);
+       so_method(so, tesla, NV50TCL_GP_START_ID, 1);
+       so_data  (so, 0);
+       so_ref(so, &nv50->state.geomprog);
+       so_ref(NULL, &so);
+}
+
 static uint32_t
 nv50_pntc_replace(struct nv50_context *nv50, uint32_t pntc[8], unsigned base)
 {
+       struct nv50_program *vp;
        struct nv50_program *fp = nv50->fragprog;
-       struct nv50_program *vp = nv50->vertprog;
        unsigned i, c, m = base;
        uint32_t origin = 0x00000010;
 
+       vp = nv50->geomprog ? nv50->geomprog : nv50->vertprog;
+
        /* XXX: this might not work correctly in all cases yet - we'll
         * just assume that an FP generic input that is not written in
         * the VP is PointCoord.
         */
        memset(pntc, 0, 8 * sizeof(uint32_t));
 
-       for (i = 0; i < fp->cfg.io_nr; i++) {
-               uint8_t sn, si;
-               uint8_t j, k = fp->cfg.io[i].id;
-               unsigned n = popcnt4(fp->cfg.io[i].mask);
+       for (i = 0; i < fp->cfg.in_nr; i++) {
+               unsigned j, n = popcnt4(fp->cfg.in[i].mask);
 
-               if (fp->info.input_semantic_name[k] != TGSI_SEMANTIC_GENERIC) {
+               if (fp->cfg.in[i].sn != TGSI_SEMANTIC_GENERIC) {
                        m += n;
                        continue;
                }
 
-               for (j = 0; j < vp->info.num_outputs; ++j) {
-                       sn = vp->info.output_semantic_name[j];
-                       si = vp->info.output_semantic_index[j];
-
-                       if (sn == fp->info.input_semantic_name[k] &&
-                           si == fp->info.input_semantic_index[k])
+               for (j = 0; j < vp->cfg.out_nr; ++j)
+                       if (vp->cfg.out[j].sn ==  fp->cfg.in[i].sn &&
+                           vp->cfg.out[j].si == fp->cfg.in[i].si)
                                break;
-               }
 
-               if (j < vp->info.num_outputs) {
-                       ubyte mode =
-                               nv50->rasterizer->pipe.sprite_coord_mode[si];
+               if (j < vp->cfg.out_nr) {
+                       ubyte mode = nv50->rasterizer->pipe.sprite_coord_mode[
+                               vp->cfg.out[j].si];
 
                        if (mode == PIPE_SPRITE_COORD_NONE) {
                                m += n;
@@ -4191,7 +4317,7 @@ nv50_pntc_replace(struct nv50_context *nv50, uint32_t pntc[8], unsigned base)
 
                /* this is either PointCoord or replaced by sprite coords */
                for (c = 0; c < 4; c++) {
-                       if (!(fp->cfg.io[i].mask & (1 << c)))
+                       if (!(fp->cfg.in[i].mask & (1 << c)))
                                continue;
                        pntc[m / 8] |= (c + 1) << ((m % 8) * 4);
                        ++m;
@@ -4201,18 +4327,22 @@ nv50_pntc_replace(struct nv50_context *nv50, uint32_t pntc[8], unsigned base)
 }
 
 static int
-nv50_sreg4_map(uint32_t *p_map, int mid, uint32_t lin[4],
-              struct nv50_sreg4 *fpi, struct nv50_sreg4 *vpo)
+nv50_vec4_map(uint32_t *map32, int mid, uint8_t zval, uint32_t lin[4],
+             struct nv50_sreg4 *fpi, struct nv50_sreg4 *vpo)
 {
        int c;
        uint8_t mv = vpo->mask, mf = fpi->mask, oid = vpo->hw;
-       uint8_t *map = (uint8_t *)p_map;
+       uint8_t *map = (uint8_t *)map32;
 
        for (c = 0; c < 4; ++c) {
                if (mf & 1) {
                        if (fpi->linear == TRUE)
                                lin[mid / 32] |= 1 << (mid % 32);
-                       map[mid++] = (mv & 1) ? oid : ((c == 3) ? 0x41 : 0x40);
+                       if (mv & 1)
+                               map[mid] = oid;
+                       else
+                               map[mid] = (c == 3) ? (zval + 1) : zval;
+                       ++mid;
                }
 
                oid += mv & 1;
@@ -4224,16 +4354,21 @@ nv50_sreg4_map(uint32_t *p_map, int mid, uint32_t lin[4],
 }
 
 void
-nv50_linkage_validate(struct nv50_context *nv50)
+nv50_fp_linkage_validate(struct nv50_context *nv50)
 {
        struct nouveau_grobj *tesla = nv50->screen->tesla;
        struct nv50_program *vp = nv50->vertprog;
        struct nv50_program *fp = nv50->fragprog;
        struct nouveau_stateobj *so;
-       struct nv50_sreg4 dummy, *vpo;
+       struct nv50_sreg4 dummy;
        int i, n, c, m = 0;
        uint32_t map[16], lin[4], reg[5], pcrd[8];
+       uint8_t zval = 0x40;
 
+       if (nv50->geomprog) {
+               vp = nv50->geomprog;
+               zval = 0x80;
+       }
        memset(map, 0, sizeof(map));
        memset(lin, 0, sizeof(lin));
 
@@ -4245,13 +4380,15 @@ nv50_linkage_validate(struct nv50_context *nv50)
 
        dummy.linear = FALSE;
        dummy.mask = 0xf; /* map all components of HPOS */
-       m = nv50_sreg4_map(map, m, lin, &dummy, &vp->cfg.io[0]);
+       m = nv50_vec4_map(map, m, zval, lin, &dummy, &vp->cfg.out[0]);
 
        dummy.mask = 0x0;
 
        if (vp->cfg.clpd < 0x40) {
-               for (c = 0; c < vp->cfg.clpd_nr; ++c)
-                       map[m++] = vp->cfg.clpd + c;
+               for (c = 0; c < vp->cfg.clpd_nr; ++c) {
+                       map[m / 4] |= (vp->cfg.clpd + c) << ((m % 4) * 8);
+                       ++m;
+               }
                reg[1] = (m << 8);
        }
 
@@ -4259,35 +4396,30 @@ nv50_linkage_validate(struct nv50_context *nv50)
 
        /* if light_twoside is active, it seems FFC0_ID == BFC0_ID is bad */
        if (nv50->rasterizer->pipe.light_twoside) {
-               vpo = &vp->cfg.two_side[0];
+               struct nv50_sreg4 *vpo = &vp->cfg.two_side[0];
+               struct nv50_sreg4 *fpi = &fp->cfg.two_side[0];
 
-               m = nv50_sreg4_map(map, m, lin, &fp->cfg.two_side[0], &vpo[0]);
-               m = nv50_sreg4_map(map, m, lin, &fp->cfg.two_side[1], &vpo[1]);
+               m = nv50_vec4_map(map, m, zval, lin, &fpi[0], &vpo[0]);
+               m = nv50_vec4_map(map, m, zval, lin, &fpi[1], &vpo[1]);
        }
 
        reg[0] += m - 4; /* adjust FFC0 id */
        reg[4] |= m << 8; /* set mid where 'normal' FP inputs start */
 
-       for (i = 0; i < fp->cfg.io_nr; i++) {
-               ubyte sn = fp->info.input_semantic_name[fp->cfg.io[i].id];
-               ubyte si = fp->info.input_semantic_index[fp->cfg.io[i].id];
-
-               /* position must be mapped first */
-               assert(i == 0 || sn != TGSI_SEMANTIC_POSITION);
-
+       for (i = 0; i < fp->cfg.in_nr; i++) {
                /* maybe even remove these from cfg.io */
-               if (sn == TGSI_SEMANTIC_POSITION || sn == TGSI_SEMANTIC_FACE)
+               if (fp->cfg.in[i].sn == TGSI_SEMANTIC_POSITION ||
+                   fp->cfg.in[i].sn == TGSI_SEMANTIC_FACE)
                        continue;
 
-               /* VP outputs and vp->cfg.io are in the same order */
-               for (n = 0; n < vp->info.num_outputs; ++n) {
-                       if (vp->info.output_semantic_name[n] == sn &&
-                           vp->info.output_semantic_index[n] == si)
+               for (n = 0; n < vp->cfg.out_nr; ++n)
+                       if (vp->cfg.out[n].sn == fp->cfg.in[i].sn &&
+                           vp->cfg.out[n].si == fp->cfg.in[i].si)
                                break;
-               }
-               vpo = (n < vp->info.num_outputs) ? &vp->cfg.io[n] : &dummy;
 
-               m = nv50_sreg4_map(map, m, lin, &fp->cfg.io[i], vpo);
+               m = nv50_vec4_map(map, m, zval, lin, &fp->cfg.in[i],
+                                 (n < vp->cfg.out_nr) ?
+                                 &vp->cfg.out[n] : &dummy);
        }
 
        if (nv50->rasterizer->pipe.point_size_per_vertex) {
@@ -4295,14 +4427,22 @@ nv50_linkage_validate(struct nv50_context *nv50)
                reg[3] = (m++ << 4) | 1;
        }
 
-       /* now fill the stateobj */
-       so = so_new(7, 57, 0);
+       /* now fill the stateobj (at most 28 so_data)  */
+       so = so_new(8, 56, 0);
 
        n = (m + 3) / 4;
-       so_method(so, tesla, NV50TCL_VP_RESULT_MAP_SIZE, 1);
-       so_data  (so, m);
-       so_method(so, tesla, NV50TCL_VP_RESULT_MAP(0), n);
-       so_datap (so, map, n);
+       assert(m <= 32);
+       if (vp->type == PIPE_SHADER_GEOMETRY) {
+               so_method(so, tesla, NV50TCL_GP_RESULT_MAP_SIZE, 1);
+               so_data  (so, m);
+               so_method(so, tesla, NV50TCL_GP_RESULT_MAP(0), n);
+               so_datap (so, map, n);
+       } else {
+               so_method(so, tesla, NV50TCL_VP_RESULT_MAP_SIZE, 1);
+               so_data  (so, m);
+               so_method(so, tesla, NV50TCL_VP_RESULT_MAP(0), n);
+               so_datap (so, map, n);
+       }
 
        so_method(so, tesla, NV50TCL_MAP_SEMANTIC_0, 4);
        so_datap (so, reg, 4);
@@ -4322,8 +4462,74 @@ nv50_linkage_validate(struct nv50_context *nv50)
                so_datap (so, pcrd, 8);
        }
 
-        so_ref(so, &nv50->state.programs);
-        so_ref(NULL, &so);
+       so_method(so, tesla, NV50TCL_GP_ENABLE, 1);
+       so_data  (so, (vp->type == PIPE_SHADER_GEOMETRY) ? 1 : 0);
+
+       so_ref(so, &nv50->state.fp_linkage);
+       so_ref(NULL, &so);
+}
+
+static int
+construct_vp_gp_mapping(uint32_t *map32, int m,
+                       struct nv50_program *vp, struct nv50_program *gp)
+{
+       uint8_t *map = (uint8_t *)map32;
+       int i, j, c;
+
+        for (i = 0; i < gp->cfg.in_nr; ++i) {
+                uint8_t oid, mv = 0, mg = gp->cfg.in[i].mask;
+
+                for (j = 0; j < vp->cfg.out_nr; ++j) {
+                        if (vp->cfg.out[j].sn == gp->cfg.in[i].sn &&
+                            vp->cfg.out[j].si == gp->cfg.in[i].si) {
+                               mv = vp->cfg.out[j].mask;
+                               oid = vp->cfg.out[j].hw;
+                                break;
+                       }
+               }
+
+                for (c = 0; c < 4; ++c, mv >>= 1, mg >>= 1) {
+                       if (mg & mv & 1)
+                               map[m++] = oid;
+                       else
+                       if (mg & 1)
+                               map[m++] = (c == 3) ? 0x41 : 0x40;
+                        oid += mv & 1;
+                }
+        }
+       return m;
+}
+
+void
+nv50_gp_linkage_validate(struct nv50_context *nv50)
+{
+       struct nouveau_grobj *tesla = nv50->screen->tesla;
+       struct nouveau_stateobj *so;
+       struct nv50_program *vp = nv50->vertprog;
+       struct nv50_program *gp = nv50->geomprog;
+       uint32_t map[16];
+       int m = 0;
+
+       if (!gp) {
+               so_ref(NULL, &nv50->state.gp_linkage);
+               return;
+       }
+       memset(map, 0, sizeof(map));
+
+       m = construct_vp_gp_mapping(map, m, vp, gp);
+
+       so = so_new(2, 14, 0);
+
+       assert(m <= 32);
+       so_method(so, tesla, NV50TCL_VP_RESULT_MAP_SIZE, 1);
+       so_data  (so, m);
+
+       m = (m + 3) / 4;
+       so_method(so, tesla, NV50TCL_VP_RESULT_MAP(0), m);
+       so_datap (so, map, m);
+
+       so_ref(so, &nv50->state.gp_linkage);
+       so_ref(NULL, &so);
 }
 
 void