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