forked from Minki/linux
90a068ed3f
This patch add slpi remoteproc support in existing adsp rproc driver. Signed-off-by: Avaneesh Kumar Dwivedi <akdwived@codeaurora.org> [bjorn: documented aggre2 and px-supply] Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
489 lines
11 KiB
C
489 lines
11 KiB
C
/*
|
|
* Qualcomm ADSP/SLPI 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/clk.h>
|
|
#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"
|
|
|
|
struct adsp_data {
|
|
int crash_reason_smem;
|
|
const char *firmware_name;
|
|
int pas_id;
|
|
bool has_aggre2_clk;
|
|
};
|
|
|
|
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 clk *xo;
|
|
struct clk *aggre2_clk;
|
|
|
|
struct regulator *cx_supply;
|
|
struct regulator *px_supply;
|
|
|
|
int pas_id;
|
|
int crash_reason_smem;
|
|
bool has_aggre2_clk;
|
|
|
|
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 = clk_prepare_enable(adsp->xo);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = clk_prepare_enable(adsp->aggre2_clk);
|
|
if (ret)
|
|
goto disable_xo_clk;
|
|
|
|
ret = regulator_enable(adsp->cx_supply);
|
|
if (ret)
|
|
goto disable_aggre2_clk;
|
|
|
|
ret = regulator_enable(adsp->px_supply);
|
|
if (ret)
|
|
goto disable_cx_supply;
|
|
|
|
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_px_supply;
|
|
}
|
|
|
|
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_px_supply;
|
|
}
|
|
|
|
ret = 0;
|
|
|
|
disable_px_supply:
|
|
regulator_disable(adsp->px_supply);
|
|
disable_cx_supply:
|
|
regulator_disable(adsp->cx_supply);
|
|
disable_aggre2_clk:
|
|
clk_disable_unprepare(adsp->aggre2_clk);
|
|
disable_xo_clk:
|
|
clk_disable_unprepare(adsp->xo);
|
|
|
|
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_clock(struct qcom_adsp *adsp)
|
|
{
|
|
int ret;
|
|
|
|
adsp->xo = devm_clk_get(adsp->dev, "xo");
|
|
if (IS_ERR(adsp->xo)) {
|
|
ret = PTR_ERR(adsp->xo);
|
|
if (ret != -EPROBE_DEFER)
|
|
dev_err(adsp->dev, "failed to get xo clock");
|
|
return ret;
|
|
}
|
|
|
|
if (adsp->has_aggre2_clk) {
|
|
adsp->aggre2_clk = devm_clk_get(adsp->dev, "aggre2");
|
|
if (IS_ERR(adsp->aggre2_clk)) {
|
|
ret = PTR_ERR(adsp->aggre2_clk);
|
|
if (ret != -EPROBE_DEFER)
|
|
dev_err(adsp->dev,
|
|
"failed to get aggre2 clock");
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
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);
|
|
|
|
adsp->px_supply = devm_regulator_get(adsp->dev, "px");
|
|
if (IS_ERR(adsp->px_supply))
|
|
return PTR_ERR(adsp->px_supply);
|
|
|
|
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)
|
|
{
|
|
const struct adsp_data *desc;
|
|
struct qcom_adsp *adsp;
|
|
struct rproc *rproc;
|
|
int ret;
|
|
|
|
desc = of_device_get_match_data(&pdev->dev);
|
|
if (!desc)
|
|
return -EINVAL;
|
|
|
|
if (!qcom_scm_is_available())
|
|
return -EPROBE_DEFER;
|
|
|
|
if (!qcom_scm_pas_supported(desc->pas_id)) {
|
|
dev_err(&pdev->dev, "PAS is not available for subsystem\n");
|
|
return -ENXIO;
|
|
}
|
|
|
|
rproc = rproc_alloc(&pdev->dev, pdev->name, &adsp_ops,
|
|
desc->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;
|
|
adsp->pas_id = desc->pas_id;
|
|
adsp->crash_reason_smem = desc->crash_reason_smem;
|
|
adsp->has_aggre2_clk = desc->has_aggre2_clk;
|
|
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_clock(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_free(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_free(adsp->rproc);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct adsp_data adsp_resource_init = {
|
|
.crash_reason_smem = 423,
|
|
.firmware_name = "adsp.mdt",
|
|
.pas_id = 1,
|
|
.has_aggre2_clk = false,
|
|
};
|
|
|
|
static const struct adsp_data slpi_resource_init = {
|
|
.crash_reason_smem = 424,
|
|
.firmware_name = "slpi.mdt",
|
|
.pas_id = 12,
|
|
.has_aggre2_clk = true,
|
|
};
|
|
|
|
static const struct of_device_id adsp_of_match[] = {
|
|
{ .compatible = "qcom,msm8974-adsp-pil", .data = &adsp_resource_init},
|
|
{ .compatible = "qcom,msm8996-adsp-pil", .data = &adsp_resource_init},
|
|
{ .compatible = "qcom,msm8996-slpi-pil", .data = &slpi_resource_init},
|
|
{ },
|
|
};
|
|
MODULE_DEVICE_TABLE(of, adsp_of_match);
|
|
|
|
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");
|