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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gp10b.c (3466B)


      1/*
      2 * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
      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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     19 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
     20 * DEALINGS IN THE SOFTWARE.
     21 */
     22#include "priv.h"
     23
     24#include <subdev/acr.h>
     25
     26#include <nvfw/flcn.h>
     27#include <nvfw/pmu.h>
     28
     29static int
     30gp10b_pmu_acr_bootstrap_multiple_falcons_cb(void *priv,
     31					    struct nvfw_falcon_msg *hdr)
     32{
     33	struct nv_pmu_acr_bootstrap_multiple_falcons_msg *msg =
     34		container_of(hdr, typeof(*msg), msg.hdr);
     35	return msg->falcon_mask;
     36}
     37static int
     38gp10b_pmu_acr_bootstrap_multiple_falcons(struct nvkm_falcon *falcon, u32 mask)
     39{
     40	struct nvkm_pmu *pmu = container_of(falcon, typeof(*pmu), falcon);
     41	struct nv_pmu_acr_bootstrap_multiple_falcons_cmd cmd = {
     42		.cmd.hdr.unit_id = NV_PMU_UNIT_ACR,
     43		.cmd.hdr.size = sizeof(cmd),
     44		.cmd.cmd_type = NV_PMU_ACR_CMD_BOOTSTRAP_MULTIPLE_FALCONS,
     45		.flags = NV_PMU_ACR_BOOTSTRAP_MULTIPLE_FALCONS_FLAGS_RESET_YES,
     46		.falcon_mask = mask,
     47		.wpr_lo = 0, /*XXX*/
     48		.wpr_hi = 0, /*XXX*/
     49	};
     50	int ret;
     51
     52	ret = nvkm_falcon_cmdq_send(pmu->hpq, &cmd.cmd.hdr,
     53				    gp10b_pmu_acr_bootstrap_multiple_falcons_cb,
     54				    &pmu->subdev, msecs_to_jiffies(1000));
     55	if (ret >= 0) {
     56		if (ret != cmd.falcon_mask)
     57			ret = -EIO;
     58		else
     59			ret = 0;
     60	}
     61
     62	return ret;
     63}
     64
     65static const struct nvkm_acr_lsf_func
     66gp10b_pmu_acr = {
     67	.flags = NVKM_ACR_LSF_DMACTL_REQ_CTX,
     68	.bld_size = sizeof(struct loader_config),
     69	.bld_write = gm20b_pmu_acr_bld_write,
     70	.bld_patch = gm20b_pmu_acr_bld_patch,
     71	.boot = gm20b_pmu_acr_boot,
     72	.bootstrap_falcons = BIT_ULL(NVKM_ACR_LSF_PMU) |
     73			     BIT_ULL(NVKM_ACR_LSF_FECS) |
     74			     BIT_ULL(NVKM_ACR_LSF_GPCCS),
     75	.bootstrap_falcon = gm20b_pmu_acr_bootstrap_falcon,
     76	.bootstrap_multiple_falcons = gp10b_pmu_acr_bootstrap_multiple_falcons,
     77};
     78
     79static const struct nvkm_pmu_func
     80gp10b_pmu = {
     81	.flcn = &gm200_pmu_flcn,
     82	.enabled = gf100_pmu_enabled,
     83	.intr = gt215_pmu_intr,
     84	.recv = gm20b_pmu_recv,
     85	.initmsg = gm20b_pmu_initmsg,
     86	.reset = gp102_pmu_reset,
     87};
     88
     89#if IS_ENABLED(CONFIG_ARCH_TEGRA_210_SOC)
     90MODULE_FIRMWARE("nvidia/gp10b/pmu/desc.bin");
     91MODULE_FIRMWARE("nvidia/gp10b/pmu/image.bin");
     92MODULE_FIRMWARE("nvidia/gp10b/pmu/sig.bin");
     93#endif
     94
     95static const struct nvkm_pmu_fwif
     96gp10b_pmu_fwif[] = {
     97	{  0, gm20b_pmu_load, &gp10b_pmu, &gp10b_pmu_acr },
     98	{ -1, gm200_pmu_nofw, &gp10b_pmu },
     99	{}
    100};
    101
    102int
    103gp10b_pmu_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
    104	      struct nvkm_pmu **ppmu)
    105{
    106	return nvkm_pmu_new_(gp10b_pmu_fwif, device, type, inst, ppmu);
    107}