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EDAC/altera, firmware/intel: Add Stratix10 ECC DBE SMC call

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Reserve ECC Double Bit Error SMC call to alert U-Boot that a DBE has
occurred. Move the call from local EDAC header file to a common header.

 [ bp: Merge the two patches. ]

Signed-off-by: Thor Thayer <thor.thayer@linux.intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Richard Gong <richard.gong@intel.com>
Reviewed-by: Alan Tull <atull@kernel.org> # firmware
Cc: Greg KH <greg@kroah.com>
Cc: James Morse <james.morse@arm.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: mchehab@kernel.org
Link: https://lkml.kernel.org/r/1553870639-23895-1-git-send-email-thor.thayer@linux.intel.com

Signed-off-by: Borislav Petkov <bp@suse.de>
This commit is contained in:
Thor Thayer 2019-04-02 17:40:56 +02:00 committed by Borislav Petkov
parent 788586efd1
commit fad9fab975
3 changed files with 20 additions and 83 deletions
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1
drivers/edac/altera_edac.c
View File

@ -9,6 +9,7 @@
#include <linux/ctype.h>
#include <linux/delay.h>
#include <linux/edac.h>
#include <linux/firmware/intel/stratix10-smc.h>
#include <linux/genalloc.h>
#include <linux/interrupt.h>
#include <linux/irqchip/chained_irq.h>

83
drivers/edac/altera_edac.h
View File

@ -372,87 +372,4 @@ struct altr_arria10_edac {
struct notifier_block panic_notifier;
};
/*
* Functions specified by ARM SMC Calling convention:
*
* FAST call executes atomic operations, returns when the requested operation
* has completed.
* STD call starts a operation which can be preempted by a non-secure
* interrupt. The call can return before the requested operation has
* completed.
*
* a0..a7 is used as register names in the descriptions below, on arm32
* that translates to r0..r7 and on arm64 to w0..w7.
*/
#define INTEL_SIP_SMC_STD_CALL_VAL(func_num) \
ARM_SMCCC_CALL_VAL(ARM_SMCCC_STD_CALL, ARM_SMCCC_SMC_64, \
ARM_SMCCC_OWNER_SIP, (func_num))
#define INTEL_SIP_SMC_FAST_CALL_VAL(func_num) \
ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, ARM_SMCCC_SMC_64, \
ARM_SMCCC_OWNER_SIP, (func_num))
#define INTEL_SIP_SMC_RETURN_UNKNOWN_FUNCTION 0xFFFFFFFF
#define INTEL_SIP_SMC_STATUS_OK 0x0
#define INTEL_SIP_SMC_REG_ERROR 0x5
/*
* Request INTEL_SIP_SMC_REG_READ
*
* Read a protected register using SMCCC
*
* Call register usage:
* a0: INTEL_SIP_SMC_REG_READ.
* a1: register address.
* a2-7: not used.
*
* Return status:
* a0: INTEL_SIP_SMC_STATUS_OK, INTEL_SIP_SMC_REG_ERROR, or
* INTEL_SIP_SMC_RETURN_UNKNOWN_FUNCTION
* a1: Value in the register
* a2-3: not used.
*/
#define INTEL_SIP_SMC_FUNCID_REG_READ 7
#define INTEL_SIP_SMC_REG_READ \
INTEL_SIP_SMC_FAST_CALL_VAL(INTEL_SIP_SMC_FUNCID_REG_READ)
/*
* Request INTEL_SIP_SMC_REG_WRITE
*
* Write a protected register using SMCCC
*
* Call register usage:
* a0: INTEL_SIP_SMC_REG_WRITE.
* a1: register address
* a2: value to program into register.
* a3-7: not used.
*
* Return status:
* a0: INTEL_SIP_SMC_STATUS_OK, INTEL_SIP_SMC_REG_ERROR, or
* INTEL_SIP_SMC_RETURN_UNKNOWN_FUNCTION
* a1-3: not used.
*/
#define INTEL_SIP_SMC_FUNCID_REG_WRITE 8
#define INTEL_SIP_SMC_REG_WRITE \
INTEL_SIP_SMC_FAST_CALL_VAL(INTEL_SIP_SMC_FUNCID_REG_WRITE)
/*
* Request INTEL_SIP_SMC_ECC_DBE
*
* Sync call used by service driver at EL1 alert EL3 that a Double Bit
* ECC error has occurred.
*
* Call register usage:
* a0 INTEL_SIP_SMC_ECC_DBE
* a1 SysManager Double Bit Error value
* a2-7 not used
*
* Return status
* a0 INTEL_SIP_SMC_STATUS_OK
*/
#define INTEL_SIP_SMC_FUNCID_ECC_DBE 13
#define INTEL_SIP_SMC_ECC_DBE \
INTEL_SIP_SMC_FAST_CALL_VAL(INTEL_SIP_SMC_FUNCID_ECC_DBE)
#endif /* #ifndef _ALTERA_EDAC_H */

19
include/linux/firmware/intel/stratix10-smc.h
View File

@ -309,4 +309,23 @@ INTEL_SIP_SMC_FAST_CALL_VAL(INTEL_SIP_SMC_FUNCID_FPGA_CONFIG_COMPLETED_WRITE)
#define INTEL_SIP_SMC_FUNCID_RSU_UPDATE 12
#define INTEL_SIP_SMC_RSU_UPDATE \
INTEL_SIP_SMC_FAST_CALL_VAL(INTEL_SIP_SMC_FUNCID_RSU_UPDATE)
/*
* Request INTEL_SIP_SMC_ECC_DBE
*
* Sync call used by service driver at EL1 to alert EL3 that a Double
* Bit ECC error has occurred.
*
* Call register usage:
* a0 INTEL_SIP_SMC_ECC_DBE
* a1 SysManager Double Bit Error value
* a2-7 not used
*
* Return status
* a0 INTEL_SIP_SMC_STATUS_OK
*/
#define INTEL_SIP_SMC_FUNCID_ECC_DBE 13
#define INTEL_SIP_SMC_ECC_DBE \
INTEL_SIP_SMC_FAST_CALL_VAL(INTEL_SIP_SMC_FUNCID_ECC_DBE)
#endif