Merge back APEI material for v4.16. (fd086195) · Commits · e / devices / android_kernel_xiaomi_nabu

drivers/acpi/apei/ghes.c

+46 −33

Original line number	Original line	Diff line number	Diff line
	@@ -414,6 +414,51 @@ static void ghes_handle_memory_failure(struct acpi_hest_generic_data *gdata, int
	#endif		#endif
	}		}

			/*
			* PCIe AER errors need to be sent to the AER driver for reporting and
			* recovery. The GHES severities map to the following AER severities and
			* require the following handling:
			*
			* GHES_SEV_CORRECTABLE -> AER_CORRECTABLE
			* These need to be reported by the AER driver but no recovery is
			* necessary.
			* GHES_SEV_RECOVERABLE -> AER_NONFATAL
			* GHES_SEV_RECOVERABLE && CPER_SEC_RESET -> AER_FATAL
			* These both need to be reported and recovered from by the AER driver.
			* GHES_SEV_PANIC does not make it to this handling since the kernel must
			* panic.
			*/
			static void ghes_handle_aer(struct acpi_hest_generic_data *gdata)
			{
			#ifdef CONFIG_ACPI_APEI_PCIEAER
			struct cper_sec_pcie *pcie_err = acpi_hest_get_payload(gdata);

			if (pcie_err->validation_bits & CPER_PCIE_VALID_DEVICE_ID &&
			pcie_err->validation_bits & CPER_PCIE_VALID_AER_INFO) {
			unsigned int devfn;
			int aer_severity;

			devfn = PCI_DEVFN(pcie_err->device_id.device,
			pcie_err->device_id.function);
			aer_severity = cper_severity_to_aer(gdata->error_severity);

			/*
			* If firmware reset the component to contain
			* the error, we must reinitialize it before
			* use, so treat it as a fatal AER error.
			*/
			if (gdata->flags & CPER_SEC_RESET)
			aer_severity = AER_FATAL;

			aer_recover_queue(pcie_err->device_id.segment,
			pcie_err->device_id.bus,
			devfn, aer_severity,
			(struct aer_capability_regs *)
			pcie_err->aer_info);
			}
			#endif
			}

	static void ghes_do_proc(struct ghes *ghes,		static void ghes_do_proc(struct ghes *ghes,
	const struct acpi_hest_generic_status *estatus)		const struct acpi_hest_generic_status *estatus)
	{		{
	@@ -441,38 +486,9 @@ static void ghes_do_proc(struct ghes *ghes,
	arch_apei_report_mem_error(sev, mem_err);		arch_apei_report_mem_error(sev, mem_err);
	ghes_handle_memory_failure(gdata, sev);		ghes_handle_memory_failure(gdata, sev);
	}		}
	#ifdef CONFIG_ACPI_APEI_PCIEAER
	else if (guid_equal(sec_type, &CPER_SEC_PCIE)) {		else if (guid_equal(sec_type, &CPER_SEC_PCIE)) {
	struct cper_sec_pcie *pcie_err = acpi_hest_get_payload(gdata);		ghes_handle_aer(gdata);

	if (sev == GHES_SEV_RECOVERABLE &&
	sec_sev == GHES_SEV_RECOVERABLE &&
	pcie_err->validation_bits & CPER_PCIE_VALID_DEVICE_ID &&
	pcie_err->validation_bits & CPER_PCIE_VALID_AER_INFO) {
	unsigned int devfn;
	int aer_severity;

	devfn = PCI_DEVFN(pcie_err->device_id.device,
	pcie_err->device_id.function);
	aer_severity = cper_severity_to_aer(gdata->error_severity);

	/*
	* If firmware reset the component to contain
	* the error, we must reinitialize it before
	* use, so treat it as a fatal AER error.
	*/
	if (gdata->flags & CPER_SEC_RESET)
	aer_severity = AER_FATAL;

	aer_recover_queue(pcie_err->device_id.segment,
	pcie_err->device_id.bus,
	devfn, aer_severity,
	(struct aer_capability_regs *)
	pcie_err->aer_info);
	}

	}		}
	#endif
	else if (guid_equal(sec_type, &CPER_SEC_PROC_ARM)) {		else if (guid_equal(sec_type, &CPER_SEC_PROC_ARM)) {
	struct cper_sec_proc_arm *err = acpi_hest_get_payload(gdata);		struct cper_sec_proc_arm *err = acpi_hest_get_payload(gdata);

	@@ -870,7 +886,6 @@ static void ghes_print_queued_estatus(void)
	struct ghes_estatus_node *estatus_node;		struct ghes_estatus_node *estatus_node;
	struct acpi_hest_generic *generic;		struct acpi_hest_generic *generic;
	struct acpi_hest_generic_status *estatus;		struct acpi_hest_generic_status *estatus;
	u32 len, node_len;

	llnode = llist_del_all(&ghes_estatus_llist);		llnode = llist_del_all(&ghes_estatus_llist);
	/*		/*
	@@ -882,8 +897,6 @@ static void ghes_print_queued_estatus(void)
	estatus_node = llist_entry(llnode, struct ghes_estatus_node,		estatus_node = llist_entry(llnode, struct ghes_estatus_node,
	llnode);		llnode);
	estatus = GHES_ESTATUS_FROM_NODE(estatus_node);		estatus = GHES_ESTATUS_FROM_NODE(estatus_node);
	len = cper_estatus_len(estatus);
	node_len = GHES_ESTATUS_NODE_LEN(len);
	generic = estatus_node->generic;		generic = estatus_node->generic;
	ghes_print_estatus(NULL, generic, estatus);		ghes_print_estatus(NULL, generic, estatus);
	llnode = llnode->next;		llnode = llnode->next;