Commit 21cd921b authored by Zaid Alali's avatar Zaid Alali Committed by Rafael J. Wysocki
Browse files

ACPI: APEI: EINJ: Add einjv2 extension struct 

Add einjv2 extension struct and EINJv2 error types to prepare
the driver for EINJv2 support. ACPI specifications[1] enables
EINJv2 by extending set_error_type_with_address struct.

Link: https://uefi.org/specs/ACPI/6.6/18_Platform_Error_Interfaces.html#einjv2-extension-structure

 [1]

Reviewed-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: default avatarTony Luck <tony.luck@intel.com>
Signed-off-by: default avatarZaid Alali <zaidal@os.amperecomputing.com>
Link: https://patch.msgid.link/20250617193026.637510-4-zaidal@os.amperecomputing.com


Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 0c6176e1

drivers/acpi/apei/einj-core.c

+24 −0
Original line number Diff line number Diff line
@@ -33,6 +33,7 @@ 
#define SLEEP_UNIT_MAX		5000			/* 5ms */

/* Firmware should respond within 1 seconds */

#define FIRMWARE_TIMEOUT	(1 * USEC_PER_SEC)

#define COMPONENT_LEN		16

#define ACPI65_EINJV2_SUPP	BIT(30)

#define ACPI5_VENDOR_BIT	BIT(31)

#define MEM_ERROR_MASK		(ACPI_EINJ_MEMORY_CORRECTABLE | \
@@ -50,6 +51,28 @@ 
 */

static int acpi5;



struct syndrome_array {

	union {

		u8	acpi_id[COMPONENT_LEN];

		u8	device_id[COMPONENT_LEN];

		u8	pcie_sbdf[COMPONENT_LEN];

		u8	vendor_id[COMPONENT_LEN];

	} comp_id;

	union {

		u8	proc_synd[COMPONENT_LEN];

		u8	mem_synd[COMPONENT_LEN];

		u8	pcie_synd[COMPONENT_LEN];

		u8	vendor_synd[COMPONENT_LEN];

	} comp_synd;

};



struct einjv2_extension_struct {

	u32 length;

	u16 revision;

	u16 component_arr_count;

	struct syndrome_array component_arr[] __counted_by(component_arr_count);

};



struct set_error_type_with_address {

	u32	type;

	u32	vendor_extension;
@@ -58,6 +81,7 @@ struct set_error_type_with_address { 
	u64	memory_address;

	u64	memory_address_range;

	u32	pcie_sbdf;

	struct	einjv2_extension_struct einjv2_struct;

};

enum {

	SETWA_FLAGS_APICID = 1,