ACPI for Arm Components 1.1 Platform Design Document v1.1 [0] specifices Arm Generic Diagnostic Device Interface (AGDI). It allows an admin to issue diagnostic dump and reset via an SDEI event or an interrupt. This patch adds support to ACPI/AGDI tables. [0] https://developer.arm.com/documentation/den0093/latest/ Signed-off-by: Ilkka Koskinen <ilkka@xxxxxxxxxxxxxxxxxxxxxx> --- drivers/acpi/tables.c | 2 +- include/acpi/actbl2.h | 20 ++++++++++++++++++++ 2 files changed, 21 insertions(+), 1 deletion(-) diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c index 71419eb16e09..5e3169bcb9fb 100644 --- a/drivers/acpi/tables.c +++ b/drivers/acpi/tables.c @@ -500,7 +500,7 @@ static const char table_sigs[][ACPI_NAMESEG_SIZE] __initconst = { ACPI_SIG_WDDT, ACPI_SIG_WDRT, ACPI_SIG_DSDT, ACPI_SIG_FADT, ACPI_SIG_PSDT, ACPI_SIG_RSDT, ACPI_SIG_XSDT, ACPI_SIG_SSDT, ACPI_SIG_IORT, ACPI_SIG_NFIT, ACPI_SIG_HMAT, ACPI_SIG_PPTT, - ACPI_SIG_NHLT }; + ACPI_SIG_NHLT, ACPI_SIG_AGDI }; #define ACPI_HEADER_SIZE sizeof(struct acpi_table_header) diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h index 71ca090fd61b..66ca85b9f5fe 100644 --- a/include/acpi/actbl2.h +++ b/include/acpi/actbl2.h @@ -24,6 +24,7 @@ * file. Useful because they make it more difficult to inadvertently type in * the wrong signature. */ +#define ACPI_SIG_AGDI "AGDI" /* ARM Generic Diagnostic Dump and Reset Device Interface */ #define ACPI_SIG_BDAT "BDAT" /* BIOS Data ACPI Table */ #define ACPI_SIG_IORT "IORT" /* IO Remapping Table */ #define ACPI_SIG_IVRS "IVRS" /* I/O Virtualization Reporting Structure */ @@ -237,6 +238,25 @@ typedef struct acpi_aest_node_interrupt { #define ACPI_AEST_NODE_ERROR_RECOVERY 1 #define ACPI_AEST_XRUPT_RESERVED 2 /* 2 and above are reserved */ +/******************************************************************************* + * AGDI - Generic Diagnostic Dump and Reset Device Interface + * + * Document number: ARM DEN0093 + * + *******************************************************************************/ + +struct acpi_table_agdi { + struct acpi_table_header header; + u8 flags; + u8 reserved[3]; + u32 sdei_event; + u32 gsiv; +}; + +/* Masks for Flags field above for AGDI table */ + +#define ACPI_AGDI_SIGNALING_MODE (1) + /******************************************************************************* * * BDAT - BIOS Data ACPI Table -- 2.17.1
