drivers/gpu/drm/nouveau/nvkm/engine/gr/g84.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 #include "nv50.h"
  25
  26 #include <subdev/timer.h>
  27
  28 #include <nvif/class.h>
  29
  30 static const struct nvkm_bitfield nv50_gr_status[] = {
  31         { 0x00000001, "BUSY" }, /* set when any bit is set */
  32         { 0x00000002, "DISPATCH" },
  33         { 0x00000004, "UNK2" },
  34         { 0x00000008, "UNK3" },
  35         { 0x00000010, "UNK4" },
  36         { 0x00000020, "UNK5" },
  37         { 0x00000040, "M2MF" },
  38         { 0x00000080, "UNK7" },
  39         { 0x00000100, "CTXPROG" },
  40         { 0x00000200, "VFETCH" },
  41         { 0x00000400, "CCACHE_PREGEOM" },
  42         { 0x00000800, "STRMOUT_VATTR_POSTGEOM" },
  43         { 0x00001000, "VCLIP" },
  44         { 0x00002000, "RATTR_APLANE" },
  45         { 0x00004000, "TRAST" },
  46         { 0x00008000, "CLIPID" },
  47         { 0x00010000, "ZCULL" },
  48         { 0x00020000, "ENG2D" },
  49         { 0x00040000, "RMASK" },
  50         { 0x00080000, "TPC_RAST" },
  51         { 0x00100000, "TPC_PROP" },
  52         { 0x00200000, "TPC_TEX" },
  53         { 0x00400000, "TPC_GEOM" },
  54         { 0x00800000, "TPC_MP" },
  55         { 0x01000000, "ROP" },
  56         {}
  57 };
  58
  59 static const struct nvkm_bitfield
  60 nv50_gr_vstatus_0[] = {
  61         { 0x01, "VFETCH" },
  62         { 0x02, "CCACHE" },
  63         { 0x04, "PREGEOM" },
  64         { 0x08, "POSTGEOM" },
  65         { 0x10, "VATTR" },
  66         { 0x20, "STRMOUT" },
  67         { 0x40, "VCLIP" },
  68         {}
  69 };
  70
  71 static const struct nvkm_bitfield
  72 nv50_gr_vstatus_1[] = {
  73         { 0x01, "TPC_RAST" },
  74         { 0x02, "TPC_PROP" },
  75         { 0x04, "TPC_TEX" },
  76         { 0x08, "TPC_GEOM" },
  77         { 0x10, "TPC_MP" },
  78         {}
  79 };
  80
  81 static const struct nvkm_bitfield
  82 nv50_gr_vstatus_2[] = {
  83         { 0x01, "RATTR" },
  84         { 0x02, "APLANE" },
  85         { 0x04, "TRAST" },
  86         { 0x08, "CLIPID" },
  87         { 0x10, "ZCULL" },
  88         { 0x20, "ENG2D" },
  89         { 0x40, "RMASK" },
  90         { 0x80, "ROP" },
  91         {}
  92 };
  93
  94 static void
  95 nvkm_gr_vstatus_print(struct nv50_gr *gr, int r,
  96                       const struct nvkm_bitfield *units, u32 status)
  97 {
  98         struct nvkm_subdev *subdev = &gr->base.engine.subdev;
  99         u32 stat = status;
 100         u8  mask = 0x00;
 101         char msg[64];
 102         int i;
 103
 104         for (i = 0; units[i].name && status; i++) {
 105                 if ((status & 7) == 1)
 106                         mask |= (1 << i);
 107                 status >>= 3;
 108         }
 109
 110         nvkm_snprintbf(msg, sizeof(msg), units, mask);
 111         nvkm_error(subdev, "PGRAPH_VSTATUS%d: %08x [%s]\n", r, stat, msg);
 112 }
 113
 114 int
 115 g84_gr_tlb_flush(struct nvkm_gr *base)
 116 {
 117         struct nv50_gr *gr = nv50_gr(base);
 118         struct nvkm_subdev *subdev = &gr->base.engine.subdev;
 119         struct nvkm_device *device = subdev->device;
 120         struct nvkm_timer *tmr = device->timer;
 121         bool idle, timeout = false;
 122         unsigned long flags;
 123         char status[128];
 124         u64 start;
 125         u32 tmp;
 126
 127         spin_lock_irqsave(&gr->lock, flags);
 128         nvkm_mask(device, 0x400500, 0x00000001, 0x00000000);
 129
 130         start = nvkm_timer_read(tmr);
 131         do {
 132                 idle = true;
 133
 134                 for (tmp = nvkm_rd32(device, 0x400380); tmp && idle; tmp >>= 3) {
 135                         if ((tmp & 7) == 1)
 136                                 idle = false;
 137                 }
 138
 139                 for (tmp = nvkm_rd32(device, 0x400384); tmp && idle; tmp >>= 3) {
 140                         if ((tmp & 7) == 1)
 141                                 idle = false;
 142                 }
 143
 144                 for (tmp = nvkm_rd32(device, 0x400388); tmp && idle; tmp >>= 3) {
 145                         if ((tmp & 7) == 1)
 146                                 idle = false;
 147                 }
 148         } while (!idle &&
 149                  !(timeout = nvkm_timer_read(tmr) - start > 2000000000));
 150
 151         if (timeout) {
 152                 nvkm_error(subdev, "PGRAPH TLB flush idle timeout fail\n");
 153
 154                 tmp = nvkm_rd32(device, 0x400700);
 155                 nvkm_snprintbf(status, sizeof(status), nv50_gr_status, tmp);
 156                 nvkm_error(subdev, "PGRAPH_STATUS %08x [%s]\n", tmp, status);
 157
 158                 nvkm_gr_vstatus_print(gr, 0, nv50_gr_vstatus_0,
 159                                        nvkm_rd32(device, 0x400380));
 160                 nvkm_gr_vstatus_print(gr, 1, nv50_gr_vstatus_1,
 161                                        nvkm_rd32(device, 0x400384));
 162                 nvkm_gr_vstatus_print(gr, 2, nv50_gr_vstatus_2,
 163                                        nvkm_rd32(device, 0x400388));
 164         }
 165
 166
 167         nvkm_wr32(device, 0x100c80, 0x00000001);
 168         nvkm_msec(device, 2000,
 169                 if (!(nvkm_rd32(device, 0x100c80) & 0x00000001))
 170                         break;
 171         );
 172         nvkm_mask(device, 0x400500, 0x00000001, 0x00000001);
 173         spin_unlock_irqrestore(&gr->lock, flags);
 174         return timeout ? -EBUSY : 0;
 175 }
 176
 177 static const struct nvkm_gr_func
 178 g84_gr = {
 179         .init = nv50_gr_init,
 180         .intr = nv50_gr_intr,
 181         .chan_new = nv50_gr_chan_new,
 182         .tlb_flush = g84_gr_tlb_flush,
 183         .units = nv50_gr_units,
 184         .sclass = {
 185                 { -1, -1, NV_NULL_CLASS, &nv50_gr_object },
 186                 { -1, -1, NV50_TWOD, &nv50_gr_object },
 187                 { -1, -1, NV50_MEMORY_TO_MEMORY_FORMAT, &nv50_gr_object },
 188                 { -1, -1, NV50_COMPUTE, &nv50_gr_object },
 189                 { -1, -1, G82_TESLA, &nv50_gr_object },
 190                 {}
 191         }
 192 };
 193
 194 int
 195 g84_gr_new(struct nvkm_device *device, int index, struct nvkm_gr **pgr)
 196 {
 197         return nv50_gr_new_(&g84_gr, device, index, pgr);
 198 }