diff options
Diffstat (limited to 'debian/patches/bugfix/arm64/arm64-acpi-Add-fixup-for-HPE-m400-quirks.patch')
| -rw-r--r-- | debian/patches/bugfix/arm64/arm64-acpi-Add-fixup-for-HPE-m400-quirks.patch | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/debian/patches/bugfix/arm64/arm64-acpi-Add-fixup-for-HPE-m400-quirks.patch b/debian/patches/bugfix/arm64/arm64-acpi-Add-fixup-for-HPE-m400-quirks.patch new file mode 100644 index 000000000..fc1e76a02 --- /dev/null +++ b/debian/patches/bugfix/arm64/arm64-acpi-Add-fixup-for-HPE-m400-quirks.patch @@ -0,0 +1,92 @@ +From: Geoff Levand <geoff@infradead.org> +Date: Wed, 13 Jun 2018 10:56:08 -0700 +Subject: arm64/acpi: Add fixup for HPE m400 quirks +Forwarded: https://patchwork.codeaurora.org/patch/547277/ + +Adds a new ACPI init routine acpi_fixup_m400_quirks that adds +a work-around for HPE ProLiant m400 APEI firmware problems. + +The work-around disables APEI when CONFIG_ACPI_APEI is set and +m400 firmware is detected. Without this fixup m400 systems +experience errors like these on startup: + + [Hardware Error]: Hardware error from APEI Generic Hardware Error Source: 2 + [Hardware Error]: event severity: fatal + [Hardware Error]: Error 0, type: fatal + [Hardware Error]: section_type: memory error + [Hardware Error]: error_status: 0x0000000000001300 + [Hardware Error]: error_type: 10, invalid address + Kernel panic - not syncing: Fatal hardware error! + +Signed-off-by: Geoff Levand <geoff@infradead.org> +[bwh: Adjust context to apply to Linux 4.19] +--- + arch/arm64/kernel/acpi.c | 40 ++++++++++++++++++++++++++++++++++++---- + 1 file changed, 36 insertions(+), 4 deletions(-) + +Index: linux/arch/arm64/kernel/acpi.c +=================================================================== +--- linux.orig/arch/arm64/kernel/acpi.c ++++ linux/arch/arm64/kernel/acpi.c +@@ -32,6 +32,8 @@ + #include <asm/daifflags.h> + #include <asm/smp_plat.h> + ++#include <acpi/apei.h> ++ + int acpi_noirq = 1; /* skip ACPI IRQ initialization */ + int acpi_disabled = 1; + EXPORT_SYMBOL(acpi_disabled); +@@ -178,6 +180,33 @@ out: + } + + /* ++ * acpi_fixup_m400_quirks - Work-around for HPE ProLiant m400 APEI firmware ++ * problems. ++ */ ++static void __init acpi_fixup_m400_quirks(void) ++{ ++ acpi_status status; ++ struct acpi_table_header *header; ++#if !defined(CONFIG_ACPI_APEI) ++ int hest_disable = HEST_DISABLED; ++#endif ++ ++ if (!IS_ENABLED(CONFIG_ACPI_APEI) || hest_disable != HEST_ENABLED) ++ return; ++ ++ status = acpi_get_table(ACPI_SIG_HEST, 0, &header); ++ ++ if (ACPI_SUCCESS(status) && !strncmp(header->oem_id, "HPE ", 6) && ++ !strncmp(header->oem_table_id, "ProLiant", 8) && ++ MIDR_IMPLEMENTOR(read_cpuid_id()) == ARM_CPU_IMP_APM) { ++ hest_disable = HEST_DISABLED; ++ pr_info("Disabled APEI for m400.\n"); ++ } ++ ++ acpi_put_table(header); ++} ++ ++/* + * acpi_boot_table_init() called from setup_arch(), always. + * 1. find RSDP and get its address, and then find XSDT + * 2. extract all tables and checksums them all +@@ -232,11 +261,14 @@ done: + if (acpi_disabled) { + if (earlycon_acpi_spcr_enable) + early_init_dt_scan_chosen_stdout(); +- } else { +- acpi_parse_spcr(earlycon_acpi_spcr_enable, true); +- if (IS_ENABLED(CONFIG_ACPI_BGRT)) +- acpi_table_parse(ACPI_SIG_BGRT, acpi_parse_bgrt); ++ return; + } ++ ++ acpi_parse_spcr(earlycon_acpi_spcr_enable, true); ++ if (IS_ENABLED(CONFIG_ACPI_BGRT)) ++ acpi_table_parse(ACPI_SIG_BGRT, acpi_parse_bgrt); ++ ++ acpi_fixup_m400_quirks(); + } + + static pgprot_t __acpi_get_writethrough_mem_attribute(void) |