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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gm107.c (2156B)

      1/*
      2 * Copyright 2017 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#include "gf100.h"
     23
     24#include <subdev/timer.h>
     25
     26void
     27gm107_bar_bar1_wait(struct nvkm_bar *bar)
     28{
     29	struct nvkm_device *device = bar->subdev.device;
     30	nvkm_msec(device, 2000,
     31		if (!(nvkm_rd32(device, 0x001710) & 0x00000003))
     32			break;
     33	);
     34}
     35
     36static void
     37gm107_bar_bar2_wait(struct nvkm_bar *bar)
     38{
     39	struct nvkm_device *device = bar->subdev.device;
     40	nvkm_msec(device, 2000,
     41		if (!(nvkm_rd32(device, 0x001710) & 0x0000000c))
     42			break;
     43	);
     44}
     45
     46static const struct nvkm_bar_func
     47gm107_bar_func = {
     48	.dtor = gf100_bar_dtor,
     49	.oneinit = gf100_bar_oneinit,
     50	.bar1.init = gf100_bar_bar1_init,
     51	.bar1.fini = gf100_bar_bar1_fini,
     52	.bar1.wait = gm107_bar_bar1_wait,
     53	.bar1.vmm = gf100_bar_bar1_vmm,
     54	.bar2.init = gf100_bar_bar2_init,
     55	.bar2.fini = gf100_bar_bar2_fini,
     56	.bar2.wait = gm107_bar_bar2_wait,
     57	.bar2.vmm = gf100_bar_bar2_vmm,
     58	.flush = g84_bar_flush,
     59};
     60
     61int
     62gm107_bar_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
     63	      struct nvkm_bar **pbar)
     64{
     65	return gf100_bar_new_(&gm107_bar_func, device, type, inst, pbar);
     66}