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 (3736B)


      1/*
      2 * Copyright 2016 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 "gk104.h"
     25#include "changk104.h"
     26
     27#include <core/gpuobj.h>
     28#include <subdev/fault.h>
     29
     30#include <nvif/class.h>
     31
     32static void
     33gm107_fifo_runlist_chan(struct gk104_fifo_chan *chan,
     34			struct nvkm_memory *memory, u32 offset)
     35{
     36	nvkm_wo32(memory, offset + 0, chan->base.chid);
     37	nvkm_wo32(memory, offset + 4, chan->base.inst->addr >> 12);
     38}
     39
     40const struct gk104_fifo_runlist_func
     41gm107_fifo_runlist = {
     42	.size = 8,
     43	.cgrp = gk110_fifo_runlist_cgrp,
     44	.chan = gm107_fifo_runlist_chan,
     45	.commit = gk104_fifo_runlist_commit,
     46};
     47
     48const struct nvkm_enum
     49gm107_fifo_fault_engine[] = {
     50	{ 0x01, "DISPLAY" },
     51	{ 0x02, "CAPTURE" },
     52	{ 0x03, "IFB", NULL, NVKM_ENGINE_IFB },
     53	{ 0x04, "BAR1", NULL, NVKM_SUBDEV_BAR },
     54	{ 0x05, "BAR2", NULL, NVKM_SUBDEV_INSTMEM },
     55	{ 0x06, "SCHED" },
     56	{ 0x07, "HOST0", NULL, NVKM_ENGINE_FIFO },
     57	{ 0x08, "HOST1", NULL, NVKM_ENGINE_FIFO },
     58	{ 0x09, "HOST2", NULL, NVKM_ENGINE_FIFO },
     59	{ 0x0a, "HOST3", NULL, NVKM_ENGINE_FIFO },
     60	{ 0x0b, "HOST4", NULL, NVKM_ENGINE_FIFO },
     61	{ 0x0c, "HOST5", NULL, NVKM_ENGINE_FIFO },
     62	{ 0x0d, "HOST6", NULL, NVKM_ENGINE_FIFO },
     63	{ 0x0e, "HOST7", NULL, NVKM_ENGINE_FIFO },
     64	{ 0x0f, "HOSTSR" },
     65	{ 0x13, "PERF" },
     66	{ 0x17, "PMU" },
     67	{ 0x18, "PTP" },
     68	{}
     69};
     70
     71void
     72gm107_fifo_intr_fault(struct nvkm_fifo *fifo, int unit)
     73{
     74	struct nvkm_device *device = fifo->engine.subdev.device;
     75	u32 inst = nvkm_rd32(device, 0x002800 + (unit * 0x10));
     76	u32 valo = nvkm_rd32(device, 0x002804 + (unit * 0x10));
     77	u32 vahi = nvkm_rd32(device, 0x002808 + (unit * 0x10));
     78	u32 type = nvkm_rd32(device, 0x00280c + (unit * 0x10));
     79	struct nvkm_fault_data info;
     80
     81	info.inst   =  (u64)inst << 12;
     82	info.addr   = ((u64)vahi << 32) | valo;
     83	info.time   = 0;
     84	info.engine = unit;
     85	info.valid  = 1;
     86	info.gpc    = (type & 0x1f000000) >> 24;
     87	info.client = (type & 0x00003f00) >> 8;
     88	info.access = (type & 0x00000080) >> 7;
     89	info.hub    = (type & 0x00000040) >> 6;
     90	info.reason = (type & 0x0000000f);
     91
     92	nvkm_fifo_fault(fifo, &info);
     93}
     94
     95static const struct gk104_fifo_func
     96gm107_fifo = {
     97	.intr.fault = gm107_fifo_intr_fault,
     98	.pbdma = &gk208_fifo_pbdma,
     99	.fault.access = gk104_fifo_fault_access,
    100	.fault.engine = gm107_fifo_fault_engine,
    101	.fault.reason = gk104_fifo_fault_reason,
    102	.fault.hubclient = gk104_fifo_fault_hubclient,
    103	.fault.gpcclient = gk104_fifo_fault_gpcclient,
    104	.runlist = &gm107_fifo_runlist,
    105	.chan = {{0,0,KEPLER_CHANNEL_GPFIFO_B}, gk104_fifo_gpfifo_new },
    106};
    107
    108int
    109gm107_fifo_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
    110	       struct nvkm_fifo **pfifo)
    111{
    112	return gk104_fifo_new_(&gm107_fifo, device, type, inst, 2048, pfifo);
    113}