drivers/gpu/drm/nouveau/nvkm/engine/gr/gm20b.c

   1 /*
   2  * Copyright (c) 2015, NVIDIA CORPORATION. All rights reserved.
   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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  18  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  19  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  20  * DEALINGS IN THE SOFTWARE.
  21  */
  22 #include "gf100.h"
  23 #include "ctxgf100.h"
  24
  25 #include <subdev/timer.h>
  26
  27 #include <nvif/class.h>
  28
  29 static void
  30 gm20b_gr_init_gpc_mmu(struct gf100_gr *gr)
  31 {
  32         struct nvkm_device *device = gr->base.engine.subdev.device;
  33         u32 val;
  34
  35         /* Bypass MMU check for non-secure boot */
  36         if (!device->secboot) {
  37                 nvkm_wr32(device, 0x100ce4, 0xffffffff);
  38
  39                 if (nvkm_rd32(device, 0x100ce4) != 0xffffffff)
  40                         nvdev_warn(device,
  41                           "cannot bypass secure boot - expect failure soon!\n");
  42         }
  43
  44         val = nvkm_rd32(device, 0x100c80);
  45         val &= 0xf000187f;
  46         nvkm_wr32(device, 0x418880, val);
  47         nvkm_wr32(device, 0x418890, 0);
  48         nvkm_wr32(device, 0x418894, 0);
  49
  50         nvkm_wr32(device, 0x4188b0, nvkm_rd32(device, 0x100cc4));
  51         nvkm_wr32(device, 0x4188b4, nvkm_rd32(device, 0x100cc8));
  52         nvkm_wr32(device, 0x4188b8, nvkm_rd32(device, 0x100ccc));
  53
  54         nvkm_wr32(device, 0x4188ac, nvkm_rd32(device, 0x100800));
  55 }
  56
  57 static void
  58 gm20b_gr_set_hww_esr_report_mask(struct gf100_gr *gr)
  59 {
  60         struct nvkm_device *device = gr->base.engine.subdev.device;
  61         nvkm_wr32(device, 0x419e44, 0xdffffe);
  62         nvkm_wr32(device, 0x419e4c, 0x5);
  63 }
  64
  65 static const struct gf100_gr_func
  66 gm20b_gr = {
  67         .init = gk20a_gr_init,
  68         .init_gpc_mmu = gm20b_gr_init_gpc_mmu,
  69         .init_rop_active_fbps = gk104_gr_init_rop_active_fbps,
  70         .set_hww_esr_report_mask = gm20b_gr_set_hww_esr_report_mask,
  71         .rops = gm200_gr_rops,
  72         .ppc_nr = 1,
  73         .grctx = &gm20b_grctx,
  74         .sclass = {
  75                 { -1, -1, FERMI_TWOD_A },
  76                 { -1, -1, KEPLER_INLINE_TO_MEMORY_B },
  77                 { -1, -1, MAXWELL_B, &gf100_fermi },
  78                 { -1, -1, MAXWELL_COMPUTE_B },
  79                 {}
  80         }
  81 };
  82
  83 int
  84 gm20b_gr_new(struct nvkm_device *device, int index, struct nvkm_gr **pgr)
  85 {
  86         return gm200_gr_new_(&gm20b_gr, device, index, pgr);
  87 }