drivers/gpu/drm/nouveau/nvkm/subdev/fb/gm200.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 "gf100.h"
  25 #include "ram.h"
  26
  27 #include <core/memory.h>
  28
  29 int
  30 gm200_fb_init_page(struct nvkm_fb *fb)
  31 {
  32         struct nvkm_device *device = fb->subdev.device;
  33         switch (fb->page) {
  34         case 16: nvkm_mask(device, 0x100c80, 0x00001801, 0x00001001); break;
  35         case 17: nvkm_mask(device, 0x100c80, 0x00001801, 0x00000000); break;
  36         case  0: nvkm_mask(device, 0x100c80, 0x00001800, 0x00001800); break;
  37         default:
  38                 return -EINVAL;
  39         }
  40         return 0;
  41 }
  42
  43 void
  44 gm200_fb_init(struct nvkm_fb *base)
  45 {
  46         struct gf100_fb *fb = gf100_fb(base);
  47         struct nvkm_device *device = fb->base.subdev.device;
  48
  49         if (fb->r100c10_page)
  50                 nvkm_wr32(device, 0x100c10, fb->r100c10 >> 8);
  51
  52         nvkm_wr32(device, 0x100cc8, nvkm_memory_addr(fb->base.mmu_wr) >> 8);
  53         nvkm_wr32(device, 0x100ccc, nvkm_memory_addr(fb->base.mmu_rd) >> 8);
  54         nvkm_mask(device, 0x100cc4, 0x00060000,
  55                   min(nvkm_memory_size(fb->base.mmu_rd) >> 16, (u64)2) << 17);
  56 }
  57
  58 static const struct nvkm_fb_func
  59 gm200_fb = {
  60         .dtor = gf100_fb_dtor,
  61         .oneinit = gf100_fb_oneinit,
  62         .init = gm200_fb_init,
  63         .init_page = gm200_fb_init_page,
  64         .intr = gf100_fb_intr,
  65         .ram_new = gm200_ram_new,
  66         .default_bigpage = 0 /* per-instance. */,
  67 };
  68
  69 int
  70 gm200_fb_new(struct nvkm_device *device, int index, struct nvkm_fb **pfb)
  71 {
  72         return gf100_fb_new_(&gm200_fb, device, index, pfb);
  73 }