LXR linux/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gk104.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 "priv.h"
  25
  26static void
  27gk104_ltc_init(struct nvkm_ltc *ltc)
  28{
  29        struct nvkm_device *device = ltc->subdev.device;
  30        u32 lpg128 = !(nvkm_rd32(device, 0x100c80) & 0x00000001);
  31
  32        nvkm_wr32(device, 0x17e8d8, ltc->ltc_nr);
  33        nvkm_wr32(device, 0x17e000, ltc->ltc_nr);
  34        nvkm_wr32(device, 0x17e8d4, ltc->tag_base);
  35        nvkm_mask(device, 0x17e8c0, 0x00000002, lpg128 ? 0x00000002 : 0x00000000);
  36}
  37
  38static const struct nvkm_ltc_func
  39gk104_ltc = {
  40        .oneinit = gf100_ltc_oneinit,
  41        .init = gk104_ltc_init,
  42        .intr = gf100_ltc_intr,
  43        .cbc_clear = gf100_ltc_cbc_clear,
  44        .cbc_wait = gf100_ltc_cbc_wait,
  45        .zbc = 16,
  46        .zbc_clear_color = gf100_ltc_zbc_clear_color,
  47        .zbc_clear_depth = gf100_ltc_zbc_clear_depth,
  48        .invalidate = gf100_ltc_invalidate,
  49        .flush = gf100_ltc_flush,
  50};
  51
  52int
  53gk104_ltc_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
  54              struct nvkm_ltc **pltc)
  55{
  56        return nvkm_ltc_new_(&gk104_ltc, device, type, inst, pltc);
  57}
  58