Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934208AbcJURal (ORCPT ); Fri, 21 Oct 2016 13:30:41 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:51571 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933844AbcJURag (ORCPT ); Fri, 21 Oct 2016 13:30:36 -0400 DMARC-Filter: OpenDMARC Filter v1.3.1 smtp.codeaurora.org 4E85661D8C Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=pass smtp.mailfrom=tbaicar@codeaurora.org From: Tyler Baicar To: marc.zyngier@arm.com, pbonzini@redhat.com, rkrcmar@redhat.com, linux@armlinux.org.uk, catalin.marinas@arm.com, will.deacon@arm.com, rjw@rjwysocki.net, lenb@kernel.org, matt@codeblueprint.co.uk, robert.moore@intel.com, lv.zheng@intel.com, nkaje@codeaurora.org, zjzhang@codeaurora.org, mark.rutland@arm.com, james.morse@arm.com, akpm@linux-foundation.org, eun.taik.lee@samsung.com, sandeepa.s.prabhu@gmail.com, shijie.huang@arm.com, rruigrok@codeaurora.org, paul.gortmaker@windriver.com, tomasz.nowicki@linaro.org, fu.wei@linaro.org, rostedt@goodmis.org, bristot@redhat.com, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, linux-efi@vger.kernel.org, Suzuki.Poulose@arm.com, punit.agrawal@arm.com, astone@redhat.com, harba@codeaurora.org, hanjun.guo@linaro.org Cc: Tyler Baicar Subject: [PATCH V4 02/10] ras: acpi/apei: cper: generic error data entry v3 per ACPI 6.1 Date: Fri, 21 Oct 2016 11:30:05 -0600 Message-Id: <1477071013-29563-3-git-send-email-tbaicar@codeaurora.org> X-Mailer: git-send-email 1.8.2.1 In-Reply-To: <1477071013-29563-1-git-send-email-tbaicar@codeaurora.org> References: <1477071013-29563-1-git-send-email-tbaicar@codeaurora.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 9128 Lines: 243 Currently when a RAS error is reported it is not timestamped. The ACPI 6.1 spec adds the timestamp field to the generic error data entry v3 structure. The timestamp of when the firmware generated the error is now being reported. Signed-off-by: Jonathan (Zhixiong) Zhang Signed-off-by: Richard Ruigrok Signed-off-by: Tyler Baicar Signed-off-by: Naveen Kaje --- drivers/acpi/apei/ghes.c | 14 +++++++--- drivers/firmware/efi/cper.c | 67 +++++++++++++++++++++++++++++++++++++-------- include/acpi/ghes.h | 10 +++++++ include/linux/cper.h | 12 ++++++++ 4 files changed, 88 insertions(+), 15 deletions(-) diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c index 7d020b0..7610f08 100644 --- a/drivers/acpi/apei/ghes.c +++ b/drivers/acpi/apei/ghes.c @@ -419,7 +419,8 @@ static void ghes_handle_memory_failure(struct acpi_hest_generic_data *gdata, int int flags = -1; int sec_sev = ghes_severity(gdata->error_severity); struct cper_sec_mem_err *mem_err; - mem_err = (struct cper_sec_mem_err *)(gdata + 1); + + mem_err = acpi_hest_generic_data_payload(gdata); if (!(mem_err->validation_bits & CPER_MEM_VALID_PA)) return; @@ -449,14 +450,18 @@ static void ghes_do_proc(struct ghes *ghes, { int sev, sec_sev; struct acpi_hest_generic_data *gdata; + uuid_le sec_type; sev = ghes_severity(estatus->error_severity); apei_estatus_for_each_section(estatus, gdata) { sec_sev = ghes_severity(gdata->error_severity); - if (!uuid_le_cmp(*(uuid_le *)gdata->section_type, + sec_type = *(uuid_le *)gdata->section_type; + + if (!uuid_le_cmp(sec_type, CPER_SEC_PLATFORM_MEM)) { struct cper_sec_mem_err *mem_err; - mem_err = (struct cper_sec_mem_err *)(gdata+1); + + mem_err = acpi_hest_generic_data_payload(gdata); ghes_edac_report_mem_error(ghes, sev, mem_err); arch_apei_report_mem_error(sev, mem_err); @@ -466,7 +471,8 @@ static void ghes_do_proc(struct ghes *ghes, else if (!uuid_le_cmp(*(uuid_le *)gdata->section_type, CPER_SEC_PCIE)) { struct cper_sec_pcie *pcie_err; - pcie_err = (struct cper_sec_pcie *)(gdata+1); + + pcie_err = acpi_hest_generic_data_payload(gdata); if (sev == GHES_SEV_RECOVERABLE && sec_sev == GHES_SEV_RECOVERABLE && pcie_err->validation_bits & CPER_PCIE_VALID_DEVICE_ID && diff --git a/drivers/firmware/efi/cper.c b/drivers/firmware/efi/cper.c index d425374..af7e1e9 100644 --- a/drivers/firmware/efi/cper.c +++ b/drivers/firmware/efi/cper.c @@ -32,6 +32,9 @@ #include #include #include +#include +#include +#include #define INDENT_SP " " @@ -386,13 +389,37 @@ static void cper_print_pcie(const char *pfx, const struct cper_sec_pcie *pcie, pfx, pcie->bridge.secondary_status, pcie->bridge.control); } +static void cper_estatus_print_section_v300(const char *pfx, + const struct acpi_hest_generic_data_v300 *gdata) +{ + __u8 hour, min, sec, day, mon, year, century, *timestamp; + + if (gdata->validation_bits & ACPI_HEST_GEN_VALID_TIMESTAMP) { + timestamp = (__u8 *)&(gdata->time_stamp); + sec = bcd2bin(timestamp[0]); + min = bcd2bin(timestamp[1]); + hour = bcd2bin(timestamp[2]); + day = bcd2bin(timestamp[4]); + mon = bcd2bin(timestamp[5]); + year = bcd2bin(timestamp[6]); + century = bcd2bin(timestamp[7]); + printk("%stime: %7s %02d%02d-%02d-%02d %02d:%02d:%02d\n", pfx, + 0x01 & *(timestamp + 3) ? "precise" : "", century, + year, mon, day, hour, min, sec); + } +} + static void cper_estatus_print_section( - const char *pfx, const struct acpi_hest_generic_data *gdata, int sec_no) + const char *pfx, struct acpi_hest_generic_data *gdata, int sec_no) { uuid_le *sec_type = (uuid_le *)gdata->section_type; __u16 severity; char newpfx[64]; + if (acpi_hest_generic_data_version(gdata)) + cper_estatus_print_section_v300(pfx, + (const struct acpi_hest_generic_data_v300 *)gdata); + severity = gdata->error_severity; printk("%s""Error %d, type: %s\n", pfx, sec_no, cper_severity_str(severity)); @@ -403,14 +430,18 @@ static void cper_estatus_print_section( snprintf(newpfx, sizeof(newpfx), "%s%s", pfx, INDENT_SP); if (!uuid_le_cmp(*sec_type, CPER_SEC_PROC_GENERIC)) { - struct cper_sec_proc_generic *proc_err = (void *)(gdata + 1); + struct cper_sec_proc_generic *proc_err; + + proc_err = acpi_hest_generic_data_payload(gdata); printk("%s""section_type: general processor error\n", newpfx); if (gdata->error_data_length >= sizeof(*proc_err)) cper_print_proc_generic(newpfx, proc_err); else goto err_section_too_small; } else if (!uuid_le_cmp(*sec_type, CPER_SEC_PLATFORM_MEM)) { - struct cper_sec_mem_err *mem_err = (void *)(gdata + 1); + struct cper_sec_mem_err *mem_err; + + mem_err = acpi_hest_generic_data_payload(gdata); printk("%s""section_type: memory error\n", newpfx); if (gdata->error_data_length >= sizeof(struct cper_sec_mem_err_old)) @@ -419,7 +450,9 @@ static void cper_estatus_print_section( else goto err_section_too_small; } else if (!uuid_le_cmp(*sec_type, CPER_SEC_PCIE)) { - struct cper_sec_pcie *pcie = (void *)(gdata + 1); + struct cper_sec_pcie *pcie; + + pcie = acpi_hest_generic_data_payload(gdata); printk("%s""section_type: PCIe error\n", newpfx); if (gdata->error_data_length >= sizeof(*pcie)) cper_print_pcie(newpfx, pcie, gdata); @@ -438,6 +471,7 @@ void cper_estatus_print(const char *pfx, const struct acpi_hest_generic_status *estatus) { struct acpi_hest_generic_data *gdata; + struct acpi_hest_generic_data_v300 *gdata_v3 = NULL; unsigned int data_len, gedata_len; int sec_no = 0; char newpfx[64]; @@ -451,12 +485,22 @@ void cper_estatus_print(const char *pfx, printk("%s""event severity: %s\n", pfx, cper_severity_str(severity)); data_len = estatus->data_length; gdata = (struct acpi_hest_generic_data *)(estatus + 1); + if (acpi_hest_generic_data_version(gdata)) + gdata_v3 = (struct acpi_hest_generic_data_v300 *)gdata; + snprintf(newpfx, sizeof(newpfx), "%s%s", pfx, INDENT_SP); + while (data_len >= sizeof(*gdata)) { gedata_len = gdata->error_data_length; cper_estatus_print_section(newpfx, gdata, sec_no); - data_len -= gedata_len + sizeof(*gdata); - gdata = (void *)(gdata + 1) + gedata_len; + if(gdata_v3) { + data_len -= gedata_len + sizeof(*gdata_v3); + gdata_v3 = (void *)(gdata_v3 + 1) + gedata_len; + gdata = (struct acpi_hest_generic_data *)gdata_v3; + } else { + data_len -= gedata_len + sizeof(*gdata); + gdata = (void *)(gdata + 1) + gedata_len; + } sec_no++; } } @@ -486,12 +530,13 @@ int cper_estatus_check(const struct acpi_hest_generic_status *estatus) return rc; data_len = estatus->data_length; gdata = (struct acpi_hest_generic_data *)(estatus + 1); - while (data_len >= sizeof(*gdata)) { - gedata_len = gdata->error_data_length; - if (gedata_len > data_len - sizeof(*gdata)) + + while (data_len >= acpi_hest_generic_data_size(gdata)) { + gedata_len = acpi_hest_generic_data_error_length(gdata); + if (gedata_len > data_len - acpi_hest_generic_data_size(gdata)) return -EINVAL; - data_len -= gedata_len + sizeof(*gdata); - gdata = (void *)(gdata + 1) + gedata_len; + data_len -= gedata_len + acpi_hest_generic_data_size(gdata); + gdata = acpi_hest_generic_data_next(gdata); } if (data_len) return -EINVAL; diff --git a/include/acpi/ghes.h b/include/acpi/ghes.h index 68f088a..56b9679 100644 --- a/include/acpi/ghes.h +++ b/include/acpi/ghes.h @@ -73,3 +73,13 @@ static inline void ghes_edac_unregister(struct ghes *ghes) { } #endif + +#define acpi_hest_generic_data_version(gdata) \ + (gdata->revision >> 8) + +static inline void *acpi_hest_generic_data_payload(struct acpi_hest_generic_data *gdata) +{ + return acpi_hest_generic_data_version(gdata) >= 3 ? + (void *)(((struct acpi_hest_generic_data_v300 *)(gdata)) + 1) : + gdata + 1; +} diff --git a/include/linux/cper.h b/include/linux/cper.h index dcacb1a..13ea41c 100644 --- a/include/linux/cper.h +++ b/include/linux/cper.h @@ -255,6 +255,18 @@ enum { #define CPER_PCIE_SLOT_SHIFT 3 +#define acpi_hest_generic_data_error_length(gdata) \ + (((struct acpi_hest_generic_data *)(gdata))->error_data_length) +#define acpi_hest_generic_data_size(gdata) \ + ((acpi_hest_generic_data_version(gdata) >= 3) ? \ + sizeof(struct acpi_hest_generic_data_v300) : \ + sizeof(struct acpi_hest_generic_data)) +#define acpi_hest_generic_data_record_size(gdata) \ + (acpi_hest_generic_data_size(gdata) + \ + acpi_hest_generic_data_error_length(gdata)) +#define acpi_hest_generic_data_next(gdata) \ + ((void *)(gdata) + acpi_hest_generic_data_record_size(gdata)) + /* * All tables and structs must be byte-packed to match CPER * specification, since the tables are provided by the system BIOS -- Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc. Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.