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
  29 static int
  30 gm200_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 }
  39 static void
  40 gm200_ltc_init(struct nvkm_ltc *ltc)
  41 {
  42         nvkm_wr32(ltc->subdev.device, 0x17e278, ltc->tag_base);
  43 }
  44
  45 static const struct nvkm_ltc_func
  46 gm200_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
  59 int
  60 gm200_ltc_new(struct nvkm_device *device, int index, struct nvkm_ltc **pltc)
  61 {
  62         return nvkm_ltc_new_(&gm200_ltc, device, index, pltc);
  63 }