drivers/gpu/drm/nouveau/nvkm/subdev/fb/gp100.c

   1 /*
   2  * Copyright 2016 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 <bskeggs@redhat.com>
  23  */
  24 #include "gf100.h"
  25 #include "ram.h"
  26
  27 #include <core/memory.h>
  28
  29 void
  30 gp100_fb_init_unkn(struct nvkm_fb *base)
  31 {
  32         struct nvkm_device *device = gf100_fb(base)->base.subdev.device;
  33         nvkm_wr32(device, 0x1fac80, nvkm_rd32(device, 0x100c80));
  34         nvkm_wr32(device, 0x1facc4, nvkm_rd32(device, 0x100cc4));
  35         nvkm_wr32(device, 0x1facc8, nvkm_rd32(device, 0x100cc8));
  36         nvkm_wr32(device, 0x1faccc, nvkm_rd32(device, 0x100ccc));
  37 }
  38
  39 void
  40 gp100_fb_init_remapper(struct nvkm_fb *fb)
  41 {
  42         struct nvkm_device *device = fb->subdev.device;
  43         /* Disable address remapper. */
  44         nvkm_mask(device, 0x100c14, 0x00040000, 0x00000000);
  45 }
  46
  47 void
  48 gp100_fb_init(struct nvkm_fb *base)
  49 {
  50         struct gf100_fb *fb = gf100_fb(base);
  51         struct nvkm_device *device = fb->base.subdev.device;
  52
  53         if (fb->r100c10_page)
  54                 nvkm_wr32(device, 0x100c10, fb->r100c10 >> 8);
  55
  56         nvkm_wr32(device, 0x100cc8, nvkm_memory_addr(fb->base.mmu_wr) >> 8);
  57         nvkm_wr32(device, 0x100ccc, nvkm_memory_addr(fb->base.mmu_rd) >> 8);
  58         nvkm_mask(device, 0x100cc4, 0x00060000,
  59                   min(nvkm_memory_size(fb->base.mmu_rd) >> 16, (u64)2) << 17);
  60 }
  61
  62 static const struct nvkm_fb_func
  63 gp100_fb = {
  64         .dtor = gf100_fb_dtor,
  65         .oneinit = gf100_fb_oneinit,
  66         .init = gp100_fb_init,
  67         .init_remapper = gp100_fb_init_remapper,
  68         .init_page = gm200_fb_init_page,
  69         .init_unkn = gp100_fb_init_unkn,
  70         .ram_new = gp100_ram_new,
  71 };
  72
  73 int
  74 gp100_fb_new(struct nvkm_device *device, int index, struct nvkm_fb **pfb)
  75 {
  76         return gf100_fb_new_(&gp100_fb, device, index, pfb);
  77 }