drivers/gpu/drm/nouveau/core/engine/software/nvc0.c

   1 /*
   2  * Copyright 2012 Red Hat Inc.
   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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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  * Authors: Ben Skeggs
  23  */
  24
  25 #include <core/os.h>
  26 #include <core/class.h>
  27 #include <core/engctx.h>
  28 #include <core/event.h>
  29
  30 #include <subdev/bar.h>
  31
  32 #include <engine/software.h>
  33 #include <engine/disp.h>
  34
  35 #include "nv50.h"
  36
  37 /*******************************************************************************
  38  * software object classes
  39  ******************************************************************************/
  40
  41 static int
  42 nvc0_software_mthd_vblsem_offset(struct nouveau_object *object, u32 mthd,
  43                                  void *args, u32 size)
  44 {
  45         struct nv50_software_chan *chan = (void *)nv_engctx(object->parent);
  46         u64 data = *(u32 *)args;
  47         if (mthd == 0x0400) {
  48                 chan->vblank.offset &= 0x00ffffffffULL;
  49                 chan->vblank.offset |= data << 32;
  50         } else {
  51                 chan->vblank.offset &= 0xff00000000ULL;
  52                 chan->vblank.offset |= data;
  53         }
  54         return 0;
  55 }
  56
  57 static int
  58 nvc0_software_mthd_mp_control(struct nouveau_object *object, u32 mthd,
  59                               void *args, u32 size)
  60 {
  61         struct nv50_software_chan *chan = (void *)nv_engctx(object->parent);
  62         struct nv50_software_priv *priv = (void *)nv_object(chan)->engine;
  63         u32 data = *(u32 *)args;
  64
  65         switch (mthd) {
  66         case 0x600:
  67                 nv_wr32(priv, 0x419e00, data); /* MP.PM_UNK000 */
  68                 break;
  69         case 0x644:
  70                 if (data & ~0x1ffffe)
  71                         return -EINVAL;
  72                 nv_wr32(priv, 0x419e44, data); /* MP.TRAP_WARP_ERROR_EN */
  73                 break;
  74         case 0x6ac:
  75                 nv_wr32(priv, 0x419eac, data); /* MP.PM_UNK0AC */
  76                 break;
  77         default:
  78                 return -EINVAL;
  79         }
  80         return 0;
  81 }
  82
  83 static struct nouveau_omthds
  84 nvc0_software_omthds[] = {
  85         { 0x0400, 0x0400, nvc0_software_mthd_vblsem_offset },
  86         { 0x0404, 0x0404, nvc0_software_mthd_vblsem_offset },
  87         { 0x0408, 0x0408, nv50_software_mthd_vblsem_value },
  88         { 0x040c, 0x040c, nv50_software_mthd_vblsem_release },
  89         { 0x0500, 0x0500, nv50_software_mthd_flip },
  90         { 0x0600, 0x0600, nvc0_software_mthd_mp_control },
  91         { 0x0644, 0x0644, nvc0_software_mthd_mp_control },
  92         { 0x06ac, 0x06ac, nvc0_software_mthd_mp_control },
  93         {}
  94 };
  95
  96 static struct nouveau_oclass
  97 nvc0_software_sclass[] = {
  98         { 0x906e, &nouveau_object_ofuncs, nvc0_software_omthds },
  99         {}
 100 };
 101
 102 /*******************************************************************************
 103  * software context
 104  ******************************************************************************/
 105
 106 static int
 107 nvc0_software_vblsem_release(void *data, u32 type, int head)
 108 {
 109         struct nv50_software_chan *chan = data;
 110         struct nv50_software_priv *priv = (void *)nv_object(chan)->engine;
 111         struct nouveau_bar *bar = nouveau_bar(priv);
 112
 113         nv_wr32(priv, 0x001718, 0x80000000 | chan->vblank.channel);
 114         bar->flush(bar);
 115         nv_wr32(priv, 0x06000c, upper_32_bits(chan->vblank.offset));
 116         nv_wr32(priv, 0x060010, lower_32_bits(chan->vblank.offset));
 117         nv_wr32(priv, 0x060014, chan->vblank.value);
 118
 119         return NVKM_EVENT_DROP;
 120 }
 121
 122 static struct nv50_software_cclass
 123 nvc0_software_cclass = {
 124         .base.handle = NV_ENGCTX(SW, 0xc0),
 125         .base.ofuncs = &(struct nouveau_ofuncs) {
 126                 .ctor = nv50_software_context_ctor,
 127                 .dtor = _nouveau_software_context_dtor,
 128                 .init = _nouveau_software_context_init,
 129                 .fini = _nouveau_software_context_fini,
 130         },
 131         .vblank = nvc0_software_vblsem_release,
 132 };
 133
 134 /*******************************************************************************
 135  * software engine/subdev functions
 136  ******************************************************************************/
 137
 138 struct nouveau_oclass *
 139 nvc0_software_oclass = &(struct nv50_software_oclass) {
 140         .base.handle = NV_ENGINE(SW, 0xc0),
 141         .base.ofuncs = &(struct nouveau_ofuncs) {
 142                 .ctor = nv50_software_ctor,
 143                 .dtor = _nouveau_software_dtor,
 144                 .init = _nouveau_software_init,
 145                 .fini = _nouveau_software_fini,
 146         },
 147         .cclass = &nvc0_software_cclass.base,
 148         .sclass =  nvc0_software_sclass,
 149 }.base;