src/gallium/drivers/nv50/nv50_context.c

   1 #include "draw/draw_context.h"
   2 #include "pipe/p_defines.h"
   3 #include "pipe/p_winsys.h"
   4 #include "pipe/p_util.h"
   5
   6 #include "nv50_context.h"
   7 #include "nv50_screen.h"
   8
   9 static void
  10 nv50_flush(struct pipe_context *pipe, unsigned flags)
  11 {
  12         struct nv50_context *nv50 = (struct nv50_context *)pipe;
  13         struct nouveau_winsys *nvws = nv50->nvws;
  14
  15         if (flags & PIPE_FLUSH_WAIT) {
  16                 nvws->notifier_reset(nv50->sync, 0);
  17                 BEGIN_RING(tesla, 0x104, 1);
  18                 OUT_RING  (0);
  19                 BEGIN_RING(tesla, 0x100, 1);
  20                 OUT_RING  (0);
  21         }
  22
  23         FIRE_RING();
  24
  25         if (flags & PIPE_FLUSH_WAIT)
  26                 nvws->notifier_wait(nv50->sync, 0, 0, 2000);
  27 }
  28
  29 static void
  30 nv50_destroy(struct pipe_context *pipe)
  31 {
  32         struct nv50_context *nv50 = (struct nv50_context *)pipe;
  33
  34         draw_destroy(nv50->draw);
  35         free(nv50);
  36 }
  37
  38 static boolean
  39 nv50_init_hwctx(struct nv50_context *nv50, int tesla_class)
  40 {
  41         struct nouveau_winsys *nvws = nv50->nvws;
  42         int ret;
  43
  44         if ((ret = nvws->grobj_alloc(nvws, tesla_class, &nv50->tesla))) {
  45                 NOUVEAU_ERR("Error creating 3D object: %d\n", ret);
  46                 return FALSE;
  47         }
  48
  49         BEGIN_RING(tesla, NV50TCL_DMA_NOTIFY, 1);
  50         OUT_RING  (nv50->sync->handle);
  51
  52         FIRE_RING ();
  53         return TRUE;
  54 }
  55
  56 #define GRCLASS5097_CHIPSETS 0x00000000
  57 #define GRCLASS8297_CHIPSETS 0x00000010
  58 struct pipe_context *
  59 nv50_create(struct pipe_screen *pscreen)
  60 {
  61         struct pipe_winsys *pipe_winsys = pscreen->winsys;
  62         struct nouveau_winsys *nvws = nv50_screen(pscreen)->nvws;
  63         unsigned chipset = nv50_screen(pscreen)->chipset;
  64         struct nv50_context *nv50;
  65         int tesla_class, ret;
  66
  67         if ((chipset & 0xf0) != 0x50 && (chipset & 0xf0) != 0x80) {
  68                 NOUVEAU_ERR("Not a G8x chipset\n");
  69                 return NULL;
  70         }
  71
  72         if (GRCLASS5097_CHIPSETS & (1 << (chipset & 0x0f))) {
  73                 tesla_class = 0x5097;
  74         } else
  75         if (GRCLASS8297_CHIPSETS & (1 << (chipset & 0x0f))) {
  76                 tesla_class = 0x8297;
  77         } else {
  78                 NOUVEAU_ERR("Unknown G8x chipset: NV%02x\n", chipset);
  79                 return NULL;
  80         }
  81
  82         nv50 = CALLOC_STRUCT(nv50_context);
  83         if (!nv50)
  84                 return NULL;
  85         nv50->chipset = chipset;
  86         nv50->nvws = nvws;
  87
  88         if ((ret = nvws->notifier_alloc(nvws, 1, &nv50->sync))) {
  89                 NOUVEAU_ERR("Error creating notifier object: %d\n", ret);
  90                 free(nv50);
  91                 return NULL;
  92         }
  93
  94         if (!nv50_init_hwctx(nv50, tesla_class)) {
  95                 free(nv50);
  96                 return NULL;
  97         }
  98
  99         nv50->pipe.winsys = pipe_winsys;
 100         nv50->pipe.screen = pscreen;
 101
 102         nv50->pipe.destroy = nv50_destroy;
 103
 104         nv50->pipe.draw_arrays = nv50_draw_arrays;
 105         nv50->pipe.draw_elements = nv50_draw_elements;
 106         nv50->pipe.clear = nv50_clear;
 107
 108         nv50->pipe.flush = nv50_flush;
 109
 110         nv50_init_miptree_functions(nv50);
 111         nv50_init_surface_functions(nv50);
 112         nv50_init_state_functions(nv50);
 113         nv50_init_query_functions(nv50);
 114
 115         nv50->draw = draw_create();
 116         assert(nv50->draw);
 117         draw_set_rasterize_stage(nv50->draw, nv50_draw_render_stage(nv50));
 118
 119         return &nv50->pipe;
 120 }
 121
 122