cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

dacgf119.c (2270B)

      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 "ior.h"
     23
     24static void
     25gf119_dac_clock(struct nvkm_ior *dac)
     26{
     27	struct nvkm_device *device = dac->disp->engine.subdev.device;
     28	const u32 doff = nv50_ior_base(dac);
     29	nvkm_mask(device, 0x612280 + doff, 0x07070707, 0x00000000);
     30}
     31
     32static void
     33gf119_dac_state(struct nvkm_ior *dac, struct nvkm_ior_state *state)
     34{
     35	struct nvkm_device *device = dac->disp->engine.subdev.device;
     36	const u32 coff = (state == &dac->asy) * 0x20000 + dac->id * 0x20;
     37	u32 ctrl = nvkm_rd32(device, 0x640180 + coff);
     38
     39	state->proto_evo = (ctrl & 0x00000f00) >> 8;
     40	switch (state->proto_evo) {
     41	case 0: state->proto = CRT; break;
     42	default:
     43		state->proto = UNKNOWN;
     44		break;
     45	}
     46
     47	state->head = ctrl & 0x0000000f;
     48}
     49
     50static const struct nvkm_ior_func
     51gf119_dac = {
     52	.state = gf119_dac_state,
     53	.power = nv50_dac_power,
     54	.sense = nv50_dac_sense,
     55	.clock = gf119_dac_clock,
     56};
     57
     58int
     59gf119_dac_new(struct nvkm_disp *disp, int id)
     60{
     61	return nvkm_ior_new_(&gf119_dac, disp, DAC, id);
     62}
     63
     64int
     65gf119_dac_cnt(struct nvkm_disp *disp, unsigned long *pmask)
     66{
     67	struct nvkm_device *device = disp->engine.subdev.device;
     68	*pmask = (nvkm_rd32(device, 0x612004) & 0x000000f0) >> 4;
     69	return 4;
     70}