LXR linux/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
  29int
  30gm200_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
  43void
  44gm200_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
  58static const struct nvkm_fb_func
  59gm200_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
  69int
  70gm200_fb_new(struct nvkm_device *device, int index, struct nvkm_fb **pfb)
  71{
  72        return gf100_fb_new_(&gm200_fb, device, index, pfb);
  73}
  74