src/gallium/drivers/nv40/nv40_state_emit.c

   1 #include "nv40_context.h"
   2 #include "nv40_state.h"
   3 #include "draw/draw_context.h"
   4
   5 static struct nv40_state_entry *render_states[] = {
   6         &nv40_state_framebuffer,
   7         &nv40_state_rasterizer,
   8         &nv40_state_scissor,
   9         &nv40_state_stipple,
  10         &nv40_state_fragprog,
  11         &nv40_state_fragtex,
  12         &nv40_state_vertprog,
  13         &nv40_state_blend,
  14         &nv40_state_blend_colour,
  15         &nv40_state_zsa,
  16         &nv40_state_sr,
  17         &nv40_state_viewport,
  18         &nv40_state_vbo,
  19         NULL
  20 };
  21
  22 static struct nv40_state_entry *swtnl_states[] = {
  23         &nv40_state_framebuffer,
  24         &nv40_state_rasterizer,
  25         &nv40_state_scissor,
  26         &nv40_state_stipple,
  27         &nv40_state_fragprog,
  28         &nv40_state_fragtex,
  29         &nv40_state_vertprog,
  30         &nv40_state_blend,
  31         &nv40_state_blend_colour,
  32         &nv40_state_zsa,
  33         &nv40_state_sr,
  34         &nv40_state_viewport,
  35         &nv40_state_vtxfmt,
  36         NULL
  37 };
  38
  39 static void
  40 nv40_state_do_validate(struct nv40_context *nv40,
  41                        struct nv40_state_entry **states)
  42 {
  43         while (*states) {
  44                 struct nv40_state_entry *e = *states;
  45
  46                 if (nv40->dirty & e->dirty.pipe) {
  47                         if (e->validate(nv40))
  48                                 nv40->state.dirty |= (1ULL << e->dirty.hw);
  49                 }
  50
  51                 states++;
  52         }
  53         nv40->dirty = 0;
  54 }
  55
  56 void
  57 nv40_state_emit(struct nv40_context *nv40)
  58 {
  59         struct nv40_state *state = &nv40->state;
  60         struct nv40_screen *screen = nv40->screen;
  61         struct nouveau_channel *chan = screen->base.channel;
  62         struct nouveau_grobj *curie = screen->curie;
  63         unsigned i;
  64         uint64_t states;
  65
  66         /* XXX: race conditions
  67          */
  68         if (nv40 != screen->cur_ctx) {
  69                 for (i = 0; i < NV40_STATE_MAX; i++) {
  70                         if (state->hw[i] && screen->state[i] != state->hw[i])
  71                                 state->dirty |= (1ULL << i);
  72                 }
  73
  74                 screen->cur_ctx = nv40;
  75         }
  76
  77         for (i = 0, states = state->dirty; states; i++) {
  78                 if (!(states & (1ULL << i)))
  79                         continue;
  80                 so_ref (state->hw[i], &nv40->screen->state[i]);
  81                 if (state->hw[i])
  82                         so_emit(chan, nv40->screen->state[i]);
  83                 states &= ~(1ULL << i);
  84         }
  85
  86         if (state->dirty & ((1ULL << NV40_STATE_FRAGPROG) |
  87                             (1ULL << NV40_STATE_FRAGTEX0))) {
  88                 BEGIN_RING(chan, curie, NV40TCL_TEX_CACHE_CTL, 1);
  89                 OUT_RING  (chan, 2);
  90                 BEGIN_RING(chan, curie, NV40TCL_TEX_CACHE_CTL, 1);
  91                 OUT_RING  (chan, 1);
  92         }
  93
  94         state->dirty = 0;
  95 }
  96
  97 void
  98 nv40_state_flush_notify(struct nouveau_channel *chan)
  99 {
 100         struct nv40_context *nv40 = chan->user_private;
 101         struct nv40_state *state = &nv40->state;
 102         unsigned i, samplers;
 103
 104         so_emit_reloc_markers(chan, state->hw[NV40_STATE_FB]);
 105         for (i = 0, samplers = state->fp_samplers; i < 16 && samplers; i++) {
 106                 if (!(samplers & (1 << i)))
 107                         continue;
 108                 so_emit_reloc_markers(chan,
 109                                       state->hw[NV40_STATE_FRAGTEX0+i]);
 110                 samplers &= ~(1ULL << i);
 111         }
 112         so_emit_reloc_markers(chan, state->hw[NV40_STATE_FRAGPROG]);
 113         if (state->hw[NV40_STATE_VTXBUF] && nv40->render_mode == HW)
 114                 so_emit_reloc_markers(chan, state->hw[NV40_STATE_VTXBUF]);
 115 }
 116
 117 boolean
 118 nv40_state_validate(struct nv40_context *nv40)
 119 {
 120         boolean was_sw = nv40->fallback_swtnl ? TRUE : FALSE;
 121
 122         if (nv40->render_mode != HW) {
 123                 /* Don't even bother trying to go back to hw if none
 124                  * of the states that caused swtnl previously have changed.
 125                  */
 126                 if ((nv40->fallback_swtnl & nv40->dirty)
 127                                 != nv40->fallback_swtnl)
 128                         return FALSE;
 129
 130                 /* Attempt to go to hwtnl again */
 131                 nv40->pipe.flush(&nv40->pipe, 0, NULL);
 132                 nv40->dirty |= (NV40_NEW_VIEWPORT |
 133                                 NV40_NEW_VERTPROG |
 134                                 NV40_NEW_ARRAYS);
 135                 nv40->render_mode = HW;
 136         }
 137
 138         nv40_state_do_validate(nv40, render_states);
 139         if (nv40->fallback_swtnl || nv40->fallback_swrast)
 140                 return FALSE;
 141
 142         if (was_sw)
 143                 NOUVEAU_ERR("swtnl->hw\n");
 144
 145         return TRUE;
 146 }
 147
 148 boolean
 149 nv40_state_validate_swtnl(struct nv40_context *nv40)
 150 {
 151         struct draw_context *draw = nv40->draw;
 152
 153         /* Setup for swtnl */
 154         if (nv40->render_mode == HW) {
 155                 NOUVEAU_ERR("hw->swtnl 0x%08x\n", nv40->fallback_swtnl);
 156                 nv40->pipe.flush(&nv40->pipe, 0, NULL);
 157                 nv40->dirty |= (NV40_NEW_VIEWPORT |
 158                                 NV40_NEW_VERTPROG |
 159                                 NV40_NEW_ARRAYS);
 160                 nv40->render_mode = SWTNL;
 161         }
 162
 163         if (nv40->draw_dirty & NV40_NEW_VERTPROG)
 164                 draw_bind_vertex_shader(draw, nv40->vertprog->draw);
 165
 166         if (nv40->draw_dirty & NV40_NEW_RAST)
 167                 draw_set_rasterizer_state(draw, &nv40->rasterizer->pipe, nv40->rasterizer);
 168
 169         if (nv40->draw_dirty & NV40_NEW_UCP)
 170                 draw_set_clip_state(draw, &nv40->clip);
 171
 172         if (nv40->draw_dirty & NV40_NEW_VIEWPORT)
 173                 draw_set_viewport_state(draw, &nv40->viewport);
 174
 175         if (nv40->draw_dirty & NV40_NEW_ARRAYS) {
 176                 draw_set_vertex_buffers(draw, nv40->vtxbuf_nr, nv40->vtxbuf);
 177                 draw_set_vertex_elements(draw, nv40->vtxelt_nr, nv40->vtxelt);
 178         }
 179
 180         nv40_state_do_validate(nv40, swtnl_states);
 181         if (nv40->fallback_swrast) {
 182                 NOUVEAU_ERR("swtnl->swrast 0x%08x\n", nv40->fallback_swrast);
 183                 return FALSE;
 184         }
 185
 186         nv40->draw_dirty = 0;
 187         return TRUE;
 188 }
 189