From: Ilia Mirkin <imirkin@alum.mit.edu>
Date: Mon, 24 Aug 2015 15:49:05 +0000 (-0400)
Subject: nv50: avoid using inline vertex data submit when gl_VertexID is used
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=c830d19;p=mesa.git

nv50: avoid using inline vertex data submit when gl_VertexID is used

The hardware only generates vertexid when vertices come from a VBO. This
fixes:

  vertexid-drawelements
  vertexid-drawarrays

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: "11.0" <mesa-stable@lists.freedesktop.org>
---

diff --git a/src/gallium/drivers/nouveau/nv50/nv50_program.c b/src/gallium/drivers/nouveau/nv50/nv50_program.c
index 02dc3677259..eff4477472c 100644
--- a/src/gallium/drivers/nouveau/nv50/nv50_program.c
+++ b/src/gallium/drivers/nouveau/nv50/nv50_program.c
@@ -66,6 +66,7 @@ nv50_vertprog_assign_slots(struct nv50_ir_prog_info *info)
       case TGSI_SEMANTIC_VERTEXID:
          prog->vp.attrs[2] |= NV50_3D_VP_GP_BUILTIN_ATTR_EN_VERTEX_ID;
          prog->vp.attrs[2] |= NV50_3D_VP_GP_BUILTIN_ATTR_EN_VERTEX_ID_DRAW_ARRAYS_ADD_START;
+         prog->vp.vertexid = 1;
          continue;
       default:
          break;
diff --git a/src/gallium/drivers/nouveau/nv50/nv50_program.h b/src/gallium/drivers/nouveau/nv50/nv50_program.h
index 5d3ff5644d2..f4e8e9402ca 100644
--- a/src/gallium/drivers/nouveau/nv50/nv50_program.h
+++ b/src/gallium/drivers/nouveau/nv50/nv50_program.h
@@ -76,6 +76,7 @@ struct nv50_program {
       ubyte psiz;        /* output slot of point size */
       ubyte bfc[2];      /* indices into varying for FFC (FP) or BFC (VP) */
       ubyte edgeflag;
+      ubyte vertexid;
       ubyte clpd[2];     /* output slot of clip distance[i]'s 1st component */
       ubyte clpd_nr;
    } vp;
diff --git a/src/gallium/drivers/nouveau/nv50/nv50_state_validate.c b/src/gallium/drivers/nouveau/nv50/nv50_state_validate.c
index b304a177b50..66dcf43533b 100644
--- a/src/gallium/drivers/nouveau/nv50/nv50_state_validate.c
+++ b/src/gallium/drivers/nouveau/nv50/nv50_state_validate.c
@@ -503,7 +503,8 @@ static struct state_validate {
     { nv50_validate_samplers,      NV50_NEW_SAMPLERS },
     { nv50_stream_output_validate, NV50_NEW_STRMOUT |
                                    NV50_NEW_VERTPROG | NV50_NEW_GMTYPROG },
-    { nv50_vertex_arrays_validate, NV50_NEW_VERTEX | NV50_NEW_ARRAYS },
+    { nv50_vertex_arrays_validate, NV50_NEW_VERTEX | NV50_NEW_ARRAYS |
+                                   NV50_NEW_VERTPROG },
     { nv50_validate_min_samples,   NV50_NEW_MIN_SAMPLES },
 };
 #define validate_list_len (sizeof(validate_list) / sizeof(validate_list[0]))
diff --git a/src/gallium/drivers/nouveau/nv50/nv50_vbo.c b/src/gallium/drivers/nouveau/nv50/nv50_vbo.c
index 600b973c5f6..e7984734af9 100644
--- a/src/gallium/drivers/nouveau/nv50/nv50_vbo.c
+++ b/src/gallium/drivers/nouveau/nv50/nv50_vbo.c
@@ -293,7 +293,8 @@ nv50_vertex_arrays_validate(struct nv50_context *nv50)
    uint64_t addrs[PIPE_MAX_ATTRIBS];
    uint32_t limits[PIPE_MAX_ATTRIBS];
    struct nouveau_pushbuf *push = nv50->base.pushbuf;
-   struct nv50_vertex_stateobj *vertex = nv50->vertex;
+   struct nv50_vertex_stateobj dummy = {};
+   struct nv50_vertex_stateobj *vertex = nv50->vertex ? nv50->vertex : &dummy;
    struct pipe_vertex_buffer *vb;
    struct nv50_vertex_element *ve;
    uint32_t mask;
@@ -301,6 +302,14 @@ nv50_vertex_arrays_validate(struct nv50_context *nv50)
    unsigned i;
    const unsigned n = MAX2(vertex->num_elements, nv50->state.num_vtxelts);
 
+   /* A vertexid is not generated for inline data uploads. Have to use a
+    * VBO. This check must come after the vertprog has been validated,
+    * otherwise vertexid may be unset.
+    */
+   assert(nv50->vertprog->translated);
+   if (nv50->vertprog->vp.vertexid)
+      nv50->vbo_push_hint = 0;
+
    if (unlikely(vertex->need_conversion))
       nv50->vbo_fifo = ~0;
    else