cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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gm200.c (2137B)

      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}