path: root/drivers/remoteproc/qcom_q6v5_pas.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * 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.
 */

#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/firmware.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_reserved_mem.h>
#include <linux/platform_device.h>
#include <linux/pm_domain.h>
#include <linux/pm_runtime.h>
#include <linux/firmware/qcom/qcom_scm.h>
#include <linux/regulator/consumer.h>
#include <linux/remoteproc.h>
#include <linux/soc/qcom/mdt_loader.h>
#include <linux/soc/qcom/smem.h>
#include <linux/soc/qcom/smem_state.h>

#include "qcom_common.h"
#include "qcom_pil_info.h"
#include "qcom_q6v5.h"
#include "remoteproc_internal.h"

#define ADSP_DECRYPT_SHUTDOWN_DELAY_MS	100

struct adsp_data {
	int crash_reason_smem;
	const char *firmware_name;
	const char *dtb_firmware_name;
	int pas_id;
	int dtb_pas_id;
	unsigned int minidump_id;
	bool auto_boot;
	bool decrypt_shutdown;

	char **proxy_pd_names;

	const char *load_state;
	const char *ssr_name;
	const char *sysmon_name;
	int ssctl_id;

	int region_assign_idx;
};

struct qcom_adsp {
	struct device *dev;
	struct rproc *rproc;

	struct qcom_q6v5 q6v5;

	struct clk *xo;
	struct clk *aggre2_clk;

	struct regulator *cx_supply;
	struct regulator *px_supply;

	struct device *proxy_pds[3];

	int proxy_pd_count;

	const char *dtb_firmware_name;
	int pas_id;
	int dtb_pas_id;
	unsigned int minidump_id;
	int crash_reason_smem;
	bool decrypt_shutdown;
	const char *info_name;

	const struct firmware *firmware;
	const struct firmware *dtb_firmware;

	struct completion start_done;
	struct completion stop_done;

	phys_addr_t mem_phys;
	phys_addr_t dtb_mem_phys;
	phys_addr_t mem_reloc;
	phys_addr_t dtb_mem_reloc;
	phys_addr_t region_assign_phys;
	void *mem_region;
	void *dtb_mem_region;
	size_t mem_size;
	size_t dtb_mem_size;
	size_t region_assign_size;

	int region_assign_idx;
	u64 region_assign_perms;

	struct qcom_rproc_glink glink_subdev;
	struct qcom_rproc_subdev smd_subdev;
	struct qcom_rproc_ssr ssr_subdev;
	struct qcom_sysmon *sysmon;

	struct qcom_scm_pas_metadata pas_metadata;
	struct qcom_scm_pas_metadata dtb_pas_metadata;
};

static void adsp_segment_dump(struct rproc *rproc, struct rproc_dump_segment *segment,
		       void *dest, size_t offset, size_t size)
{
	struct qcom_adsp *adsp = rproc->priv;
	int total_offset;

	total_offset = segment->da + segment->offset + offset - adsp->mem_phys;
	if (total_offset < 0 || total_offset + size > adsp->mem_size) {
		dev_err(adsp->dev,
			"invalid copy request for segment %pad with offset %zu and size %zu)\n",
			&segment->da, offset, size);
		memset(dest, 0xff, size);
		return;
	}

	memcpy_fromio(dest, adsp->mem_region + total_offset, size);
}

static void adsp_minidump(struct rproc *rproc)
{
	struct qcom_adsp *adsp = rproc->priv;

	if (rproc->dump_conf == RPROC_COREDUMP_DISABLED)