LXR linux/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
  29void
  30gp100_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
  39void
  40gp100_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
  47void
  48gp100_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
  62static const struct nvkm_fb_func
  63gp100_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
  73int
  74gp100_fb_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_fb **pfb)
  75{
  76        return gf100_fb_new_(&gp100_fb, device, type, inst, pfb);
  77}
  78