Merge "soc: qcom: socinfo: Add API for defective core/part information" (0542b426) · Commits · e / devices / android_kernel_fairphone_FP4

drivers/soc/qcom/socinfo.c

+103 −0

Original line number	Diff line number	Diff line
		@@ -21,6 +21,7 @@
		#include <soc/qcom/socinfo.h>
		#include <linux/soc/qcom/smem.h>
		#include <soc/qcom/boot_stats.h>
		#include <asm/unaligned.h>

		#define BUILD_ID_LENGTH 32
		#define CHIP_ID_LENGTH 32
		@@ -870,6 +871,42 @@ msm_get_ncluster_array_offset(struct device *dev,
		socinfo_get_ncluster_array_offset());
		}

		uint32_t
		socinfo_get_cluster_info(enum defective_cluster_type cluster)
		{
		uint32_t def_cluster, num_cluster, offset;
		void *cluster_val;
		void *info = socinfo;

		if (cluster >= NUM_CLUSTERS_MAX) {
		pr_err("Bad cluster\n");
		return -EINVAL;
		}

		num_cluster = socinfo_get_num_clusters();
		offset = socinfo_get_ncluster_array_offset();

		if (!num_cluster \|\| !offset)
		return -EINVAL;

		info += offset;
		cluster_val = info + (sizeof(uint32_t) * cluster);
		def_cluster = get_unaligned_le32(cluster_val);

		return def_cluster;
		}
		EXPORT_SYMBOL(socinfo_get_cluster_info);

		static ssize_t
		msm_get_defective_cores(struct device *dev,
		struct device_attribute *attr,
		char *buf)
		{
		uint32_t def_cluster = socinfo_get_cluster_info(CLUSTER_CPUSS);

		return scnprintf(buf, PAGE_SIZE, "%x\n", def_cluster);
		}

		static ssize_t
		msm_get_num_defective_parts(struct device *dev,
		struct device_attribute *attr,
		@@ -888,6 +925,60 @@ msm_get_ndefective_parts_array_offset(struct device *dev,
		socinfo_get_ndefective_parts_array_offset());
		}

		static uint32_t
		socinfo_get_defective_parts(void)
		{
		uint32_t num_parts = socinfo_get_num_defective_parts();
		uint32_t offset = socinfo_get_ndefective_parts_array_offset();
		uint32_t def_parts = 0;
		void *info = socinfo;
		uint32_t part_entry;
		int i;

		if (!num_parts \|\| !offset)
		return -EINVAL;

		info += offset;
		for (i = 0; i < num_parts; i++) {
		part_entry = get_unaligned_le32(info);
		if (part_entry)
		def_parts \|= BIT(i);
		info += sizeof(uint32_t);
		}

		return def_parts;
		}

		bool
		socinfo_get_part_info(enum defective_part_type part)
		{
		uint32_t partinfo;

		if (part >= NUM_PARTS_MAX) {
		pr_err("Bad part number\n");
		return false;
		}

		partinfo = socinfo_get_defective_parts();
		if (partinfo < 0) {
		pr_err("Failed to get part information\n");
		return false;
		}

		return (partinfo & BIT(part));
		}
		EXPORT_SYMBOL(socinfo_get_part_info);

		static ssize_t
		msm_get_defective_parts(struct device *dev,
		struct device_attribute *attr,
		char *buf)
		{
		uint32_t def_parts = socinfo_get_defective_parts();

		return scnprintf(buf, PAGE_SIZE, "%x\n", def_parts);
		}

		static ssize_t
		msm_get_nmodem_supported(struct device *dev,
		struct device_attribute *attr,
		@@ -1192,6 +1283,10 @@ static struct device_attribute msm_soc_attr_ncluster_array_offset =
		__ATTR(ncluster_array_offset, 0444,
		msm_get_ncluster_array_offset, NULL);

		static struct device_attribute msm_soc_attr_defective_cores =
		__ATTR(defective_cores, 0444,
		msm_get_defective_cores, NULL);

		static struct device_attribute msm_soc_attr_num_defective_parts =
		__ATTR(num_defective_parts, 0444,
		msm_get_num_defective_parts, NULL);
		@@ -1200,6 +1295,10 @@ static struct device_attribute msm_soc_attr_ndefective_parts_array_offset =
		__ATTR(ndefective_parts_array_offset, 0444,
		msm_get_ndefective_parts_array_offset, NULL);

		static struct device_attribute msm_soc_attr_defective_parts =
		__ATTR(defective_parts, 0444,
		msm_get_defective_parts, NULL);

		static struct device_attribute msm_soc_attr_nmodem_supported =
		__ATTR(nmodem_supported, 0444,
		msm_get_nmodem_supported, NULL);
		@@ -1398,10 +1497,14 @@ static void __init populate_soc_sysfs_files(struct device *msm_soc_device)
		&msm_soc_attr_num_clusters);
		device_create_file(msm_soc_device,
		&msm_soc_attr_ncluster_array_offset);
		device_create_file(msm_soc_device,
		&msm_soc_attr_defective_cores);
		device_create_file(msm_soc_device,
		&msm_soc_attr_num_defective_parts);
		device_create_file(msm_soc_device,
		&msm_soc_attr_ndefective_parts_array_offset);
		device_create_file(msm_soc_device,
		&msm_soc_attr_defective_parts);
		case SOCINFO_VERSION(0, 13):
		device_create_file(msm_soc_device,
		&msm_soc_attr_nproduct_id);

include/soc/qcom/socinfo.h

+26 −0

Original line number	Diff line number	Diff line
		@@ -233,6 +233,30 @@ enum pmic_model {
		PMIC_MODEL_UNKNOWN = 0xFFFFFFFF
		};

		enum defective_part_type {
		PART_UNKNOWN = 0,
		PART_GPU = 1,
		PART_VIDEO = 2,
		PART_CAMERA = 3,
		PART_DISPLAY = 4,
		PART_AUDIO = 5,
		PART_MODEM = 6,
		PART_WLAN = 7,
		PART_COMP = 8,
		PART_SENSORS = 9,
		PART_NPU = 10,
		PART_SPSS = 11,
		PART_NAV = 12,
		PART_COMP1 = 13,
		PART_DISPLAY1 = 14,
		NUM_PARTS_MAX,
		};

		enum defective_cluster_type {
		CLUSTER_CPUSS = 0,
		NUM_CLUSTERS_MAX,
		};

		enum msm_cpu socinfo_get_msm_cpu(void);
		uint32_t socinfo_get_id(void);
		uint32_t socinfo_get_version(void);
		@@ -243,6 +267,8 @@ uint32_t socinfo_get_platform_type(void);
		uint32_t socinfo_get_platform_subtype(void);
		uint32_t socinfo_get_platform_version(void);
		uint32_t socinfo_get_serial_number(void);
		uint32_t socinfo_get_cluster_info(enum defective_cluster_type cluster);
		bool socinfo_get_part_info(enum defective_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;