/*
|
* 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;
|
u8 buf[NVKM_MSGQUEUE_CMDLINE_SIZE];
|
|
memset(buf, 0, sizeof(buf));
|
nvkm_msgqueue_write_cmdline(queue, buf);
|
nvkm_falcon_load_dmem(falcon, buf, addr_args, sizeof(buf), 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;
|
}
|
