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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gk104.c (2085B)

      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}