Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 | /*
* Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include "ls_ucode.h"
#include "acr.h"
#include <core/firmware.h>
#include <core/msgqueue.h>
#include <subdev/pmu.h>
#include <engine/sec2.h>
#include <subdev/mc.h>
#include <subdev/timer.h>
/**
* acr_ls_ucode_load_msgqueue - load and prepare a ucode img for a msgqueue fw
*
* Load the LS microcode, desc and signature and pack them into a single
* blob.
*/
static int
acr_ls_ucode_load_msgqueue(const struct nvkm_subdev *subdev, const char *name,
struct ls_ucode_img *img)
{
const struct firmware *image, *desc, *sig;
char f[64];
int ret;
snprintf(f, sizeof(f), "%s/image", name);
ret = nvkm_firmware_get(subdev->device, f, &image);
if (ret)
return ret;
img->ucode_data = kmemdup(image->data, image->size, GFP_KERNEL);
nvkm_firmware_put(image);
if (!img->ucode_data)
return -ENOMEM;
snprintf(f, sizeof(f), "%s/desc", name);
ret = nvkm_firmware_get(subdev->device, f, &desc);
if (ret)
return ret;
memcpy(&img->ucode_desc, desc->data, sizeof(img->ucode_desc));
img->ucode_size = ALIGN(img->ucode_desc.app_start_offset + img->ucode_desc.app_size, 256);
nvkm_firmware_put(desc);
snprintf(f, sizeof(f), "%s/sig", name);
ret = nvkm_firmware_get(subdev->device, f, &sig);
if (ret)
return ret;
img->sig_size = sig->size;
img->sig = kmemdup(sig->data, sig->size, GFP_KERNEL);
nvkm_firmware_put(sig);
if (!img->sig)
return -ENOMEM;
return 0;
}
static int
acr_ls_msgqueue_post_run(struct nvkm_msgqueue *queue,
struct nvkm_falcon *falcon, u32 addr_args)
{
struct nvkm_device *device = falcon->owner->device;
u32 cmdline_size = NVKM_MSGQUEUE_CMDLINE_SIZE;
u8 buf[cmdline_size];
memset(buf, 0, cmdline_size);
nvkm_msgqueue_write_cmdline(queue, buf);
nvkm_falcon_load_dmem(falcon, buf, addr_args, cmdline_size, 0);
/* rearm the queue so it will wait for the init message */
nvkm_msgqueue_reinit(queue);
/* Enable interrupts */
nvkm_falcon_wr32(falcon, 0x10, 0xff);
nvkm_mc_intr_mask(device, falcon->owner->index, true);
/* Start LS firmware on boot falcon */
nvkm_falcon_start(falcon);
return 0;
}
int
acr_ls_ucode_load_pmu(const struct nvkm_secboot *sb, struct ls_ucode_img *img)
{
struct nvkm_pmu *pmu = sb->subdev.device->pmu;
int ret;
ret = acr_ls_ucode_load_msgqueue(&sb->subdev, "pmu", img);
if (ret)
return ret;
/* Allocate the PMU queue corresponding to the FW version */
ret = nvkm_msgqueue_new(img->ucode_desc.app_version, pmu->falcon,
sb, &pmu->queue);
if (ret)
return ret;
return 0;
}
int
acr_ls_pmu_post_run(const struct nvkm_acr *acr, const struct nvkm_secboot *sb)
{
struct nvkm_device *device = sb->subdev.device;
struct nvkm_pmu *pmu = device->pmu;
u32 addr_args = pmu->falcon->data.limit - NVKM_MSGQUEUE_CMDLINE_SIZE;
int ret;
ret = acr_ls_msgqueue_post_run(pmu->queue, pmu->falcon, addr_args);
if (ret)
return ret;
nvkm_debug(&sb->subdev, "%s started\n",
nvkm_secboot_falcon_name[acr->boot_falcon]);
return 0;
}
int
acr_ls_ucode_load_sec2(const struct nvkm_secboot *sb, struct ls_ucode_img *img)
{
struct nvkm_sec2 *sec = sb->subdev.device->sec2;
int ret;
ret = acr_ls_ucode_load_msgqueue(&sb->subdev, "sec2", img);
if (ret)
return ret;
/* Allocate the PMU queue corresponding to the FW version */
ret = nvkm_msgqueue_new(img->ucode_desc.app_version, sec->falcon,
sb, &sec->queue);
if (ret)
return ret;
return 0;
}
int
acr_ls_sec2_post_run(const struct nvkm_acr *acr, const struct nvkm_secboot *sb)
{
const struct nvkm_subdev *subdev = &sb->subdev;
struct nvkm_device *device = subdev->device;
struct nvkm_sec2 *sec = device->sec2;
/* on SEC arguments are always at the beginning of EMEM */
const u32 addr_args = 0x01000000;
u32 reg;
int ret;
ret = acr_ls_msgqueue_post_run(sec->queue, sec->falcon, addr_args);
if (ret)
return ret;
/*
* There is a bug where the LS firmware sometimes require to be started
* twice (this happens only on SEC). Detect and workaround that
* condition.
*
* Once started, the falcon will end up in STOPPED condition (bit 5)
* if successful, or in HALT condition (bit 4) if not.
*/
nvkm_msec(device, 1,
if ((reg = nvkm_falcon_rd32(sb->boot_falcon, 0x100) & 0x30) != 0)
break;
);
if (reg & BIT(4)) {
nvkm_debug(subdev, "applying workaround for start bug...\n");
nvkm_falcon_start(sb->boot_falcon);
nvkm_msec(subdev->device, 1,
if ((reg = nvkm_rd32(subdev->device,
sb->boot_falcon->addr + 0x100)
& 0x30) != 0)
break;
);
if (reg & BIT(4)) {
nvkm_error(subdev, "%s failed to start\n",
nvkm_secboot_falcon_name[acr->boot_falcon]);
return -EINVAL;
}
}
nvkm_debug(&sb->subdev, "%s started\n",
nvkm_secboot_falcon_name[acr->boot_falcon]);
return 0;
}
|