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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changf119.c (2389B)

      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 "channv50.h"
     25
     26static void
     27gf119_disp_chan_uevent_fini(struct nvkm_event *event, int type, int index)
     28{
     29	struct nv50_disp *disp = container_of(event, typeof(*disp), uevent);
     30	struct nvkm_device *device = disp->base.engine.subdev.device;
     31	nvkm_mask(device, 0x610090, 0x00000001 << index, 0x00000000 << index);
     32	nvkm_wr32(device, 0x61008c, 0x00000001 << index);
     33}
     34
     35static void
     36gf119_disp_chan_uevent_init(struct nvkm_event *event, int types, int index)
     37{
     38	struct nv50_disp *disp = container_of(event, typeof(*disp), uevent);
     39	struct nvkm_device *device = disp->base.engine.subdev.device;
     40	nvkm_wr32(device, 0x61008c, 0x00000001 << index);
     41	nvkm_mask(device, 0x610090, 0x00000001 << index, 0x00000001 << index);
     42}
     43
     44const struct nvkm_event_func
     45gf119_disp_chan_uevent = {
     46	.ctor = nv50_disp_chan_uevent_ctor,
     47	.init = gf119_disp_chan_uevent_init,
     48	.fini = gf119_disp_chan_uevent_fini,
     49};
     50
     51void
     52gf119_disp_chan_intr(struct nv50_disp_chan *chan, bool en)
     53{
     54	struct nvkm_device *device = chan->disp->base.engine.subdev.device;
     55	const u32 mask = 0x00000001 << chan->chid.user;
     56	if (!en) {
     57		nvkm_mask(device, 0x610090, mask, 0x00000000);
     58		nvkm_mask(device, 0x6100a0, mask, 0x00000000);
     59	} else {
     60		nvkm_mask(device, 0x6100a0, mask, mask);
     61	}
     62}