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Commit 7a513681 authored by Saranya R's avatar Saranya R Committed by Gerrit - the friendly Code Review server
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soc: qcom: provide apis for pcode and feature string 



Socinfo need to provide pcode and feature string information
to client drivers.

Change-Id: I7a9ce09803ea855a94591ef85003a67b81a70230
Signed-off-by: default avatarPrasad Sodagudi <quic_psodagud@quicinc.com>
Signed-off-by: default avatarSaranya R <quic_sarar@quicinc.com>
parent 9dfd0a51

drivers/soc/qcom/socinfo.c

+157 −72
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (c) 2009-2021, The Linux Foundation. All rights reserved.

 * Copyright (c) 2022, Qualcomm Innovation Center, Inc. All rights reserved.

 * Copyright (c) 2022-2023, Qualcomm Innovation Center, Inc. All rights reserved.

 */



#define pr_fmt(fmt) "%s: " fmt, __func__
@@ -212,8 +212,8 @@ struct socinfo_v0_15 { 


struct socinfo_v0_16 {

	struct socinfo_v0_15 v0_15;

	__le32  esku;

	__le32  nproduct_code;

	__le32  feature_code;

	__le32  pcode;

	__le32  npartnamemap_offset;

	__le32  nnum_partname_mapping;

};
@@ -237,52 +237,39 @@ static union { 
	struct socinfo_v0_16 v0_16;

} *socinfo;



#define PART_NAME_MAX		32

struct socinfo_partinfo {

	__le32 part_type;

	char part_name[PART_NAME_MAX];

	__le32 part_name_len;

};

struct socinfo_partinfo partinfo[SOCINFO_PART_MAX_PARTTYPE];



/* max socinfo format version supported */

#define MAX_SOCINFO_FORMAT SOCINFO_VERSION(0, 16)



enum {

	/* External SKU */

	SKU_UNKNOWN = 0x0,

	SKU_AA = 0x1,

	SKU_AB = 0x2,

	SKU_AC = 0x3,

	SKU_AD = 0x4,

	SKU_AE = 0x5,

	SKU_AF = 0x6,

	SKU_EXT_RESERVE,



	/* Internal SKU */

	SKU_Y0 = 0xf1,

	SKU_Y1 = 0xf2,

	SKU_Y2 = 0xf3,

	SKU_Y3 = 0xf4,

	SKU_Y4 = 0xf5,

	SKU_Y5 = 0xf6,

	SKU_Y6 = 0xf7,

	SKU_Y7 = 0xf8,

	SKU_INT_RESERVE,

static const char * const hw_platform_feature_code[] = {

	[SOCINFO_FC_UNKNOWN] = "Unknown",

	[SOCINFO_FC_AA] = "AA",

	[SOCINFO_FC_AB] = "AB",

	[SOCINFO_FC_AC] = "AC",

	[SOCINFO_FC_AD] = "AD",

	[SOCINFO_FC_AE] = "AE",

	[SOCINFO_FC_AF] = "AF",

	[SOCINFO_FC_AG] = "AG",

	[SOCINFO_FC_AH] = "AH",

};



static const char * const hw_platform_esku[] = {

	[SKU_UNKNOWN] = "Unknown",

	[SKU_AA] = "AA",

	[SKU_AB] = "AB",

	[SKU_AC] = "AC",

	[SKU_AD] = "AD",

	[SKU_AE] = "AE",

	[SKU_AF] = "AF",

};



#define SKU_INT_MASK 0x0f

static const char * const hw_platform_isku[] = {

	[SKU_Y0 & SKU_INT_MASK] = "Y0",

	[SKU_Y1 & SKU_INT_MASK] = "Y1",

	[SKU_Y2 & SKU_INT_MASK] = "Y2",

	[SKU_Y3 & SKU_INT_MASK] = "Y3",

	[SKU_Y4 & SKU_INT_MASK] = "Y4",

	[SKU_Y5 & SKU_INT_MASK] = "Y5",

	[SKU_Y6 & SKU_INT_MASK] = "Y6",

	[SKU_Y7 & SKU_INT_MASK] = "Y7",

#define SOCINFO_FC_INT_MASK 0x0f

static const char * const hw_platform_ifeature_code[] = {

	[SOCINFO_FC_Y0 - SOCINFO_FC_Y0] = "Y0",

	[SOCINFO_FC_Y1 - SOCINFO_FC_Y0] = "Y1",

	[SOCINFO_FC_Y2 - SOCINFO_FC_Y0] = "Y2",

	[SOCINFO_FC_Y3 - SOCINFO_FC_Y0] = "Y3",

	[SOCINFO_FC_Y4 - SOCINFO_FC_Y0] = "Y4",

	[SOCINFO_FC_Y5 - SOCINFO_FC_Y0] = "Y5",

	[SOCINFO_FC_Y6 - SOCINFO_FC_Y0] = "Y6",

	[SOCINFO_FC_Y7 - SOCINFO_FC_Y0] = "Y7",

};



static struct msm_soc_info cpu_of_id[] = {
@@ -713,32 +700,115 @@ static uint32_t socinfo_get_nmodem_supported(void) 
		: 0;

}



static uint32_t socinfo_get_eskuid(void)

static uint32_t socinfo_get_feature_code_id(void)

{

	return socinfo ?

		(socinfo_format >= SOCINFO_VERSION(0, 16) ?

			le32_to_cpu(socinfo->v0_16.esku) : 0)

		: 0;

	uint32_t fc_id;



	if (!socinfo || socinfo_format < SOCINFO_VERSION(0, 16))

		return SOCINFO_FC_UNKNOWN;



	fc_id = le32_to_cpu(socinfo->v0_16.feature_code);

	if (fc_id <= SOCINFO_FC_UNKNOWN || fc_id >= SOCINFO_FC_INT_RESERVE)

		return SOCINFO_FC_UNKNOWN;



	return fc_id;

}



static const char *socinfo_get_esku_mapping(void)

static const char *socinfo_get_feature_code_mapping(void)

{

	uint32_t id = socinfo_get_eskuid();

	uint32_t id = socinfo_get_feature_code_id();



	if (id > SKU_UNKNOWN && id < SKU_EXT_RESERVE)

		return hw_platform_esku[id];

	else if (id >= SKU_Y0 && id < SKU_INT_RESERVE)

		return hw_platform_isku[id & SKU_INT_MASK];

	if (id > SOCINFO_FC_UNKNOWN && id < SOCINFO_FC_EXT_RESERVE)

		return hw_platform_feature_code[id];

	else if (id >= SOCINFO_FC_Y0 && id < SOCINFO_FC_INT_RESERVE)

		return hw_platform_ifeature_code[id & SOCINFO_FC_INT_MASK];



	return NULL;

}



static uint32_t socinfo_get_nproduct_code(void)

static uint32_t socinfo_get_pcode_id(void)

{

	return socinfo ?

		(socinfo_format >= SOCINFO_VERSION(0, 16) ?

			le32_to_cpu(socinfo->v0_16.nproduct_code) : 0)

		: 0;

	uint32_t pcode;



	if (!socinfo || socinfo_format < SOCINFO_VERSION(0, 16))

		return SOCINFO_PCODE_RESERVE;



	pcode = le32_to_cpu(socinfo->v0_16.pcode);

	if (pcode <= SOCINFO_PCODE_UNKNOWN || pcode >= SOCINFO_PCODE_RESERVE)

		return SOCINFO_PCODE_UNKNOWN;



	return pcode;

}



int socinfo_get_feature_code(void)

{

	if (socinfo_format < SOCINFO_VERSION(0, 16)) {

		pr_warn("socinfo: Feature code is not supported by bootloaders\n");

		return -EINVAL;

	}



	return socinfo_get_feature_code_id();

}

EXPORT_SYMBOL(socinfo_get_feature_code);



int socinfo_get_pcode(void)

{

	if (socinfo_format < SOCINFO_VERSION(0, 16)) {

		pr_warn("socinfo: pcode is not supported by bootloaders\n");

		return -EINVAL;

	}



	return socinfo_get_pcode_id();

}

EXPORT_SYMBOL(socinfo_get_pcode);



char *socinfo_get_partinfo_details(unsigned int part_id)

{

	if (socinfo_format < SOCINFO_VERSION(0, 16) ||

			part_id > SOCINFO_PART_MAX_PARTTYPE)

		return NULL;



	return partinfo[part_id].part_name;

}

EXPORT_SYMBOL(socinfo_get_partinfo_details);



void socinfo_enumerate_partinfo_details(void)

{

	unsigned int partinfo_array_offset;

	unsigned int nnum_partname_mapping;

	void *ptr = socinfo;

	int i, part_type, part_name_len;



	if (socinfo_format < SOCINFO_VERSION(0, 16))

		return;



	partinfo_array_offset =

		le32_to_cpu(socinfo->v0_16.npartnamemap_offset);

	nnum_partname_mapping =

		le32_to_cpu(socinfo->v0_16.nnum_partname_mapping);



	if (nnum_partname_mapping >  SOCINFO_PART_MAX_PARTTYPE) {

		pr_warn("socinfo: Mismatch between bootloaders and hlos\n");

		return;

	}



	ptr += partinfo_array_offset;

	for (i = 0; i < nnum_partname_mapping; i++) {

		part_type = get_unaligned_le32(ptr);

		if (part_type > SOCINFO_PART_MAX_PARTTYPE)

			pr_warn("socinfo: part type mismatch\n");



		partinfo[part_type].part_type = part_type;

		ptr += sizeof(u32);

		strscpy(partinfo[part_type].part_name, ptr, PART_NAME_MAX);

		part_name_len = strlen(partinfo[part_type].part_name);

		ptr += PART_NAME_MAX;

		if (part_name_len != get_unaligned_le32(ptr))

			pr_warn("socinfo: part info string length mismatch\n");



		partinfo[part_type].part_name_len = part_name_len;

		ptr += sizeof(u32);

	}

}



enum pmic_model socinfo_get_pmic_model(void)
@@ -1082,14 +1152,22 @@ msm_get_sku(struct device *dev, 
}



static ssize_t

msm_get_esku(struct device *dev,

msm_get_pcode(struct device *dev,

			struct device_attribute *attr,

			char *buf)

{

	const char *esku = socinfo_get_esku_mapping();

	return scnprintf(buf, PAGE_SIZE, "0x%x\n", socinfo_get_pcode_id());

}



static ssize_t

msm_get_feature_code(struct device *dev,

			struct device_attribute *attr,

			char *buf)

{

	const char *feature_code = socinfo_get_feature_code_mapping();



	return scnprintf(buf, PAGE_SIZE, "%s\n",

		esku ? esku : "Unknown");

		feature_code ? feature_code : "Unknown");

}



static ssize_t
@@ -1410,8 +1488,11 @@ static struct device_attribute msm_soc_attr_nmodem_supported = 
static struct device_attribute msm_soc_attr_sku =

	__ATTR(sku, 0444, msm_get_sku, NULL);



static struct device_attribute msm_soc_attr_esku =

	__ATTR(esku, 0444, msm_get_esku, NULL);

static struct device_attribute msm_soc_attr_feature_code =

	__ATTR(feature_code, 0444, msm_get_feature_code, NULL);



static struct device_attribute msm_soc_attr_pcode =

	__ATTR(pcode, 0444, msm_get_pcode, NULL);



static struct device_attribute msm_soc_attr_pmic_model =

	__ATTR(pmic_model, 0444,
@@ -1603,7 +1684,9 @@ static void __init populate_soc_sysfs_files(struct device *msm_soc_device) 
		device_create_file(msm_soc_device,

					&msm_soc_attr_sku);

		device_create_file(msm_soc_device,

					&msm_soc_attr_esku);

					&msm_soc_attr_feature_code);

		device_create_file(msm_soc_device,

					&msm_soc_attr_pcode);

	case SOCINFO_VERSION(0, 15):

		device_create_file(msm_soc_device,

					&msm_soc_attr_nmodem_supported);
@@ -1903,7 +1986,7 @@ static void socinfo_print(void) 
		break;



	case SOCINFO_VERSION(0, 16):

		pr_info("v%u.%u, id=%u, ver=%u.%u, raw_id=%u, raw_ver=%u, hw_plat=%u, hw_plat_ver=%u\n accessory_chip=%u, hw_plat_subtype=%u, pmic_model=%u, pmic_die_revision=%u foundry_id=%u serial_number=%u num_pmics=%u chip_family=0x%x raw_device_family=0x%x raw_device_number=0x%x nproduct_id=0x%x num_clusters=0x%x ncluster_array_offset=0x%x num_subset_parts=0x%x nsubset_parts_array_offset=0x%x nmodem_supported=0x%x sku=%s\n",

		pr_info("v%u.%u, id=%u, ver=%u.%u, raw_id=%u, raw_ver=%u, hw_plat=%u, hw_plat_ver=%u\n accessory_chip=%u, hw_plat_subtype=%u, pmic_model=%u, pmic_die_revision=%u foundry_id=%u serial_number=%u num_pmics=%u chip_family=0x%x raw_device_family=0x%x raw_device_number=0x%x nproduct_id=0x%x num_clusters=0x%x ncluster_array_offset=0x%x num_subset_parts=0x%x nsubset_parts_array_offset=0x%x nmodem_supported=0x%x feature_code=0x%x pcode=0x%x sku=%s\n",

			f_maj, f_min, socinfo->v0_1.id, v_maj, v_min,

			socinfo->v0_2.raw_id, socinfo->v0_2.raw_version,

			socinfo->v0_3.hw_platform,
@@ -1924,6 +2007,8 @@ static void socinfo_print(void) 
			socinfo->v0_14.num_subset_parts,

			socinfo->v0_14.nsubset_parts_array_offset,

			socinfo->v0_15.nmodem_supported,

			socinfo->v0_16.feature_code,

			socinfo->v0_16.pcode,

			sku ? sku : "Unknown");

		break;
@@ -1959,7 +2044,7 @@ int __init socinfo_init(void) 
	static bool socinfo_init_done;

	size_t size;

	uint32_t soc_info_id;

	const char *machine, *esku;

	const char *machine, *fc;



	if (socinfo_init_done)

		return 0;
@@ -1980,11 +2065,11 @@ int __init socinfo_init(void) 
		pr_warn("New IDs added! ID => CPU mapping needs an update.\n");



	if (socinfo_format >= SOCINFO_VERSION(0, 16)) {

		socinfo_enumerate_partinfo_details();

		machine = socinfo_get_id_string();

		esku = socinfo_get_esku_mapping();

		if (machine && esku)

		fc = socinfo_get_feature_code_mapping();

		sku = kasprintf(GFP_KERNEL, "%s-%u-%s",

				machine, socinfo_get_nproduct_code(), esku);

			machine, socinfo_get_pcode(), fc);

	}



	cur_cpu = cpu_of_id[socinfo->v0_1.id].generic_soc_type;

include/soc/qcom/socinfo.h

+62 −0
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0-only */

/*

 * Copyright (c) 2009-2021, The Linux Foundation. All rights reserved.

 * Copyright (c) 2023, Qualcomm Innovation Center, Inc. All rights reserved.

 */



#ifndef _ARCH_ARM_MACH_MSM_SOCINFO_H_
@@ -13,6 +14,64 @@ 
#include <linux/of.h>



#include <asm/cputype.h>



enum feature_code {

	/* External feature code */

	SOCINFO_FC_UNKNOWN = 0x0,

	SOCINFO_FC_AA,

	SOCINFO_FC_AB,

	SOCINFO_FC_AC,

	SOCINFO_FC_AD,

	SOCINFO_FC_AE,

	SOCINFO_FC_AF,

	SOCINFO_FC_AG,

	SOCINFO_FC_AH,

	SOCINFO_FC_EXT_RESERVE,



	/* Internal feature code */

	SOCINFO_FC_Y0 = 0xf1,

	SOCINFO_FC_Y1,

	SOCINFO_FC_Y2,

	SOCINFO_FC_Y3,

	SOCINFO_FC_Y4,

	SOCINFO_FC_Y5,

	SOCINFO_FC_Y6,

	SOCINFO_FC_Y7,

	SOCINFO_FC_INT_RESERVE

};



enum pcode {

	SOCINFO_PCODE_UNKNOWN = 0,

	SOCINFO_PCODE_0,

	SOCINFO_PCODE_1,

	SOCINFO_PCODE_2,

	SOCINFO_PCODE_3,

	SOCINFO_PCODE_4,

	SOCINFO_PCODE_5,

	SOCINFO_PCODE_6,

	SOCINFO_PCODE_7,

	SOCINFO_PCODE_8,

	SOCINFO_PCODE_RESERVE = 0x7fffffff

};



enum socinfo_parttype {

	SOCINFO_PART_GPU,

	SOCINFO_PART_VIDEO,

	SOCINFO_PART_CAMERA,

	SOCINFO_PART_DISPLAY,

	SOCINFO_PART_AUDIO,

	SOCINFO_PART_MODEM,

	SOCINFO_PART_WLAN,

	SOCINFO_PART_COMP,

	SOCINFO_PART_SENSORS,

	SOCINFO_PART_NPU,

	SOCINFO_PART_SPSS,

	SOCINFO_PART_NAV,

	SOCINFO_PART_COMPUTE_1,

	SOCINFO_PART_DISPLAY_1,

	SOCINFO_PART_MAX_PARTTYPE

};



/*

 * SOC version type with major number in the upper 16 bits and minor

 * number in the lower 16 bits.  For example:
@@ -272,5 +331,8 @@ bool socinfo_get_part_info(enum subset_part_type part); 
enum pmic_model socinfo_get_pmic_model(void);

uint32_t socinfo_get_pmic_die_revision(void);

int __init socinfo_init(void) __must_check;

int socinfo_get_feature_code(void);

int socinfo_get_pcode(void);

char *socinfo_get_partinfo_details(unsigned int part_id);



#endif