mirror of https://gitee.com/openkylin/linux.git
remoteproc: Introduce Qualcomm ADSP PIL
The Qualcomm ADSP Peripheral Image Loader is used on a variety of different Qualcomm platforms for loading firmware into and controlling the Hexagon based ADSP. Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
This commit is contained in:
Bjorn Andersson
Bjorn Andersson
parent
f904e7245b
commit
b9e718e950
|
|
@ -77,6 +77,17 @@ config DA8XX_REMOTEPROC
|
|||
It's safe to say n here if you're not interested in multimedia
|
||||
offloading.
|
||||
|
||||
config QCOM_ADSP_PIL
|
||||
tristate "Qualcomm ADSP Peripheral Image Loader"
|
||||
depends on OF && ARCH_QCOM
|
||||
depends on QCOM_SMEM
|
||||
select MFD_SYSCON
|
||||
select QCOM_MDT_LOADER
|
||||
select REMOTEPROC
|
||||
help
|
||||
Say y here to support the TrustZone based Peripherial Image Loader
|
||||
for the Qualcomm ADSP remote processors.
|
||||
|
||||
config QCOM_MDT_LOADER
|
||||
tristate
|
||||
|
||||
|
|
|
|||
|
|
@ -12,6 +12,7 @@ obj-$(CONFIG_OMAP_REMOTEPROC) += omap_remoteproc.o
|
|||
obj-$(CONFIG_STE_MODEM_RPROC) += ste_modem_rproc.o
|
||||
obj-$(CONFIG_WKUP_M3_RPROC) += wkup_m3_rproc.o
|
||||
obj-$(CONFIG_DA8XX_REMOTEPROC) += da8xx_remoteproc.o
|
||||
obj-$(CONFIG_QCOM_ADSP_PIL) += qcom_adsp_pil.o
|
||||
obj-$(CONFIG_QCOM_MDT_LOADER) += qcom_mdt_loader.o
|
||||
obj-$(CONFIG_QCOM_Q6V5_PIL) += qcom_q6v5_pil.o
|
||||
obj-$(CONFIG_QCOM_WCNSS_PIL) += qcom_wcnss_pil.o
|
||||
|
|
|
|||
|
|
@ -0,0 +1,399 @@
|
|||
/*
|
||||
* Qualcomm ADSP Peripheral Image Loader for MSM8974 and MSM8996
|
||||
*
|
||||
* Copyright (C) 2016 Linaro Ltd
|
||||
* Copyright (C) 2014 Sony Mobile Communications AB
|
||||
* Copyright (c) 2012-2013, The Linux Foundation. All rights reserved.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License
|
||||
* version 2 as published by the Free Software Foundation.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*/
|
||||
|
||||
#include <linux/firmware.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/of_address.h>
|
||||
#include <linux/of_device.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/qcom_scm.h>
|
||||
#include <linux/regulator/consumer.h>
|
||||
#include <linux/remoteproc.h>
|
||||
#include <linux/soc/qcom/smem.h>
|
||||
#include <linux/soc/qcom/smem_state.h>
|
||||
|
||||
#include "qcom_mdt_loader.h"
|
||||
#include "remoteproc_internal.h"
|
||||
|
||||
#define ADSP_CRASH_REASON_SMEM 423
|
||||
#define ADSP_FIRMWARE_NAME "adsp.mdt"
|
||||
#define ADSP_PAS_ID 1
|
||||
|
||||
struct qcom_adsp {
|
||||
struct device *dev;
|
||||
struct rproc *rproc;
|
||||
|
||||
int wdog_irq;
|
||||
int fatal_irq;
|
||||
int ready_irq;
|
||||
int handover_irq;
|
||||
int stop_ack_irq;
|
||||
|
||||
struct qcom_smem_state *state;
|
||||
unsigned stop_bit;
|
||||
|
||||
struct regulator *cx_supply;
|
||||
|
||||
struct completion start_done;
|
||||
struct completion stop_done;
|
||||
|
||||
phys_addr_t mem_phys;
|
||||
phys_addr_t mem_reloc;
|
||||
void *mem_region;
|
||||
size_t mem_size;
|
||||
};
|
||||
|
||||
static int adsp_load(struct rproc *rproc, const struct firmware *fw)
|
||||
{
|
||||
struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
|
||||
phys_addr_t fw_addr;
|
||||
size_t fw_size;
|
||||
bool relocate;
|
||||
int ret;
|
||||
|
||||
ret = qcom_scm_pas_init_image(ADSP_PAS_ID, fw->data, fw->size);
|
||||
if (ret) {
|
||||
dev_err(&rproc->dev, "invalid firmware metadata\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
ret = qcom_mdt_parse(fw, &fw_addr, &fw_size, &relocate);
|
||||
if (ret) {
|
||||
dev_err(&rproc->dev, "failed to parse mdt header\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
if (relocate) {
|
||||
adsp->mem_reloc = fw_addr;
|
||||
|
||||
ret = qcom_scm_pas_mem_setup(ADSP_PAS_ID, adsp->mem_phys, fw_size);
|
||||
if (ret) {
|
||||
dev_err(&rproc->dev, "unable to setup memory for image\n");
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
|
||||
return qcom_mdt_load(rproc, fw, rproc->firmware);
|
||||
}
|
||||
|
||||
static const struct rproc_fw_ops adsp_fw_ops = {
|
||||
.find_rsc_table = qcom_mdt_find_rsc_table,
|
||||
.load = adsp_load,
|
||||
};
|
||||
|
||||
static int adsp_start(struct rproc *rproc)
|
||||
{
|
||||
struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
|
||||
int ret;
|
||||
|
||||
ret = regulator_enable(adsp->cx_supply);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
ret = qcom_scm_pas_auth_and_reset(ADSP_PAS_ID);
|
||||
if (ret) {
|
||||
dev_err(adsp->dev,
|
||||
"failed to authenticate image and release reset\n");
|
||||
goto disable_regulators;
|
||||
}
|
||||
|
||||
ret = wait_for_completion_timeout(&adsp->start_done,
|
||||
msecs_to_jiffies(5000));
|
||||
if (!ret) {
|
||||
dev_err(adsp->dev, "start timed out\n");
|
||||
qcom_scm_pas_shutdown(ADSP_PAS_ID);
|
||||
ret = -ETIMEDOUT;
|
||||
goto disable_regulators;
|
||||
}
|
||||
|
||||
ret = 0;
|
||||
|
||||
disable_regulators:
|
||||
regulator_disable(adsp->cx_supply);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int adsp_stop(struct rproc *rproc)
|
||||
{
|
||||
struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
|
||||
int ret;
|
||||
|
||||
qcom_smem_state_update_bits(adsp->state,
|
||||
BIT(adsp->stop_bit),
|
||||
BIT(adsp->stop_bit));
|
||||
|
||||
ret = wait_for_completion_timeout(&adsp->stop_done,
|
||||
msecs_to_jiffies(5000));
|
||||
if (ret == 0)
|
||||
dev_err(adsp->dev, "timed out on wait\n");
|
||||
|
||||
qcom_smem_state_update_bits(adsp->state,
|
||||
BIT(adsp->stop_bit),
|
||||
0);
|
||||
|
||||
ret = qcom_scm_pas_shutdown(ADSP_PAS_ID);
|
||||
if (ret)
|
||||
dev_err(adsp->dev, "failed to shutdown: %d\n", ret);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void *adsp_da_to_va(struct rproc *rproc, u64 da, int len)
|
||||
{
|
||||
struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
|
||||
int offset;
|
||||
|
||||
offset = da - adsp->mem_reloc;
|
||||
if (offset < 0 || offset + len > adsp->mem_size)
|
||||
return NULL;
|
||||
|
||||
return adsp->mem_region + offset;
|
||||
}
|
||||
|
||||
static const struct rproc_ops adsp_ops = {
|
||||
.start = adsp_start,
|
||||
.stop = adsp_stop,
|
||||
.da_to_va = adsp_da_to_va,
|
||||
};
|
||||
|
||||
static irqreturn_t adsp_wdog_interrupt(int irq, void *dev)
|
||||
{
|
||||
struct qcom_adsp *adsp = dev;
|
||||
|
||||
rproc_report_crash(adsp->rproc, RPROC_WATCHDOG);
|
||||
|
||||
return IRQ_HANDLED;
|
||||
}
|
||||
|
||||
static irqreturn_t adsp_fatal_interrupt(int irq, void *dev)
|
||||
{
|
||||
struct qcom_adsp *adsp = dev;
|
||||
size_t len;
|
||||
char *msg;
|
||||
|
||||
msg = qcom_smem_get(QCOM_SMEM_HOST_ANY, ADSP_CRASH_REASON_SMEM, &len);
|
||||
if (!IS_ERR(msg) && len > 0 && msg[0])
|
||||
dev_err(adsp->dev, "fatal error received: %s\n", msg);
|
||||
|
||||
rproc_report_crash(adsp->rproc, RPROC_FATAL_ERROR);
|
||||
|
||||
if (!IS_ERR(msg))
|
||||
msg[0] = '\0';
|
||||
|
||||
return IRQ_HANDLED;
|
||||
}
|
||||
|
||||
static irqreturn_t adsp_ready_interrupt(int irq, void *dev)
|
||||
{
|
||||
return IRQ_HANDLED;
|
||||
}
|
||||
|
||||
static irqreturn_t adsp_handover_interrupt(int irq, void *dev)
|
||||
{
|
||||
struct qcom_adsp *adsp = dev;
|
||||
|
||||
complete(&adsp->start_done);
|
||||
|
||||
return IRQ_HANDLED;
|
||||
}
|
||||
|
||||
static irqreturn_t adsp_stop_ack_interrupt(int irq, void *dev)
|
||||
{
|
||||
struct qcom_adsp *adsp = dev;
|
||||
|
||||
complete(&adsp->stop_done);
|
||||
|
||||
return IRQ_HANDLED;
|
||||
}
|
||||
|
||||
static int adsp_init_regulator(struct qcom_adsp *adsp)
|
||||
{
|
||||
adsp->cx_supply = devm_regulator_get(adsp->dev, "cx");
|
||||
if (IS_ERR(adsp->cx_supply))
|
||||
return PTR_ERR(adsp->cx_supply);
|
||||
|
||||
regulator_set_load(adsp->cx_supply, 100000);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int adsp_request_irq(struct qcom_adsp *adsp,
|
||||
struct platform_device *pdev,
|
||||
const char *name,
|
||||
irq_handler_t thread_fn)
|
||||
{
|
||||
int ret;
|
||||
|
||||
ret = platform_get_irq_byname(pdev, name);
|
||||
if (ret < 0) {
|
||||
dev_err(&pdev->dev, "no %s IRQ defined\n", name);
|
||||
return ret;
|
||||
}
|
||||
|
||||
ret = devm_request_threaded_irq(&pdev->dev, ret,
|
||||
NULL, thread_fn,
|
||||
IRQF_ONESHOT,
|
||||
"adsp", adsp);
|
||||
if (ret)
|
||||
dev_err(&pdev->dev, "request %s IRQ failed\n", name);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int adsp_alloc_memory_region(struct qcom_adsp *adsp)
|
||||
{
|
||||
struct device_node *node;
|
||||
struct resource r;
|
||||
int ret;
|
||||
|
||||
node = of_parse_phandle(adsp->dev->of_node, "memory-region", 0);
|
||||
if (!node) {
|
||||
dev_err(adsp->dev, "no memory-region specified\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
ret = of_address_to_resource(node, 0, &r);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
adsp->mem_phys = adsp->mem_reloc = r.start;
|
||||
adsp->mem_size = resource_size(&r);
|
||||
adsp->mem_region = devm_ioremap_wc(adsp->dev, adsp->mem_phys, adsp->mem_size);
|
||||
if (!adsp->mem_region) {
|
||||
dev_err(adsp->dev, "unable to map memory region: %pa+%zx\n",
|
||||
&r.start, adsp->mem_size);
|
||||
return -EBUSY;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int adsp_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct qcom_adsp *adsp;
|
||||
struct rproc *rproc;
|
||||
int ret;
|
||||
|
||||
if (!qcom_scm_is_available())
|
||||
return -EPROBE_DEFER;
|
||||
|
||||
if (!qcom_scm_pas_supported(ADSP_PAS_ID)) {
|
||||
dev_err(&pdev->dev, "PAS is not available for ADSP\n");
|
||||
return -ENXIO;
|
||||
}
|
||||
|
||||
rproc = rproc_alloc(&pdev->dev, pdev->name, &adsp_ops,
|
||||
ADSP_FIRMWARE_NAME, sizeof(*adsp));
|
||||
if (!rproc) {
|
||||
dev_err(&pdev->dev, "unable to allocate remoteproc\n");
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
rproc->fw_ops = &adsp_fw_ops;
|
||||
|
||||
adsp = (struct qcom_adsp *)rproc->priv;
|
||||
adsp->dev = &pdev->dev;
|
||||
adsp->rproc = rproc;
|
||||
platform_set_drvdata(pdev, adsp);
|
||||
|
||||
init_completion(&adsp->start_done);
|
||||
init_completion(&adsp->stop_done);
|
||||
|
||||
ret = adsp_alloc_memory_region(adsp);
|
||||
if (ret)
|
||||
goto free_rproc;
|
||||
|
||||
ret = adsp_init_regulator(adsp);
|
||||
if (ret)
|
||||
goto free_rproc;
|
||||
|
||||
ret = adsp_request_irq(adsp, pdev, "wdog", adsp_wdog_interrupt);
|
||||
if (ret < 0)
|
||||
goto free_rproc;
|
||||
adsp->wdog_irq = ret;
|
||||
|
||||
ret = adsp_request_irq(adsp, pdev, "fatal", adsp_fatal_interrupt);
|
||||
if (ret < 0)
|
||||
goto free_rproc;
|
||||
adsp->fatal_irq = ret;
|
||||
|
||||
ret = adsp_request_irq(adsp, pdev, "ready", adsp_ready_interrupt);
|
||||
if (ret < 0)
|
||||
goto free_rproc;
|
||||
adsp->ready_irq = ret;
|
||||
|
||||
ret = adsp_request_irq(adsp, pdev, "handover", adsp_handover_interrupt);
|
||||
if (ret < 0)
|
||||
goto free_rproc;
|
||||
adsp->handover_irq = ret;
|
||||
|
||||
ret = adsp_request_irq(adsp, pdev, "stop-ack", adsp_stop_ack_interrupt);
|
||||
if (ret < 0)
|
||||
goto free_rproc;
|
||||
adsp->stop_ack_irq = ret;
|
||||
|
||||
adsp->state = qcom_smem_state_get(&pdev->dev, "stop",
|
||||
&adsp->stop_bit);
|
||||
if (IS_ERR(adsp->state)) {
|
||||
ret = PTR_ERR(adsp->state);
|
||||
goto free_rproc;
|
||||
}
|
||||
|
||||
ret = rproc_add(rproc);
|
||||
if (ret)
|
||||
goto free_rproc;
|
||||
|
||||
return 0;
|
||||
|
||||
free_rproc:
|
||||
rproc_put(rproc);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int adsp_remove(struct platform_device *pdev)
|
||||
{
|
||||
struct qcom_adsp *adsp = platform_get_drvdata(pdev);
|
||||
|
||||
qcom_smem_state_put(adsp->state);
|
||||
rproc_del(adsp->rproc);
|
||||
rproc_put(adsp->rproc);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct of_device_id adsp_of_match[] = {
|
||||
{ .compatible = "qcom,msm8974-adsp-pil" },
|
||||
{ .compatible = "qcom,msm8996-adsp-pil" },
|
||||
{ },
|
||||
};
|
||||
|
||||
static struct platform_driver adsp_driver = {
|
||||
.probe = adsp_probe,
|
||||
.remove = adsp_remove,
|
||||
.driver = {
|
||||
.name = "qcom_adsp_pil",
|
||||
.of_match_table = adsp_of_match,
|
||||
},
|
||||
};
|
||||
|
||||
module_platform_driver(adsp_driver);
|
||||
MODULE_DESCRIPTION("Qualcomm MSM8974/MSM8996 ADSP Peripherial Image Loader");
|
||||
MODULE_LICENSE("GPL v2");
|
||||
Loading…
Reference in New Issue