LXR linux/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gm200.c

   1/*
   2 * Copyright 2015 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 "priv.h"
  25
  26#include <subdev/fb.h>
  27#include <subdev/timer.h>
  28
  29static int
  30gm200_ltc_oneinit(struct nvkm_ltc *ltc)
  31{
  32        struct nvkm_device *device = ltc->subdev.device;
  33
  34        ltc->ltc_nr = nvkm_rd32(device, 0x12006c);
  35        ltc->lts_nr = nvkm_rd32(device, 0x17e280) >> 28;
  36
  37        return gf100_ltc_oneinit_tag_ram(ltc);
  38}
  39static void
  40gm200_ltc_init(struct nvkm_ltc *ltc)
  41{
  42        nvkm_wr32(ltc->subdev.device, 0x17e278, ltc->tag_base);
  43}
  44
  45static const struct nvkm_ltc_func
  46gm200_ltc = {
  47        .oneinit = gm200_ltc_oneinit,
  48        .init = gm200_ltc_init,
  49        .intr = gm107_ltc_intr,
  50        .cbc_clear = gm107_ltc_cbc_clear,
  51        .cbc_wait = gm107_ltc_cbc_wait,
  52        .zbc = 16,
  53        .zbc_clear_color = gm107_ltc_zbc_clear_color,
  54        .zbc_clear_depth = gm107_ltc_zbc_clear_depth,
  55        .invalidate = gf100_ltc_invalidate,
  56        .flush = gf100_ltc_flush,
  57};
  58
  59int
  60gm200_ltc_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
  61              struct nvkm_ltc **pltc)
  62{
  63        return nvkm_ltc_new_(&gm200_ltc, device, type, inst, pltc);
  64}
  65