/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */#ifndef _UAPI_LINUX_FSI_H#define _UAPI_LINUX_FSI_H #include <linux/types.h>#include <linux/ioctl.h> /* * /dev/scom "raw" ioctl interface * * The driver supports a high level "read/write" interface which * handles retries and converts the status to Linux error codes, * however low level tools an debugger need to access the "raw" * HW status information and interpret it themselves, so this * ioctl interface is also provided for their use case. */ /* Structure for SCOM read/write */struct scom_access {	__u64	addr;		/* SCOM address, supports indirect */	__u64	data;		/* SCOM data (in for write, out for read) */	__u64	mask;		/* Data mask for writes */	__u32	intf_errors;	/* Interface error flags */#define SCOM_INTF_ERR_PARITY		0x00000001 /* Parity error */#define SCOM_INTF_ERR_PROTECTION	0x00000002 /* Blocked by secure boot */#define SCOM_INTF_ERR_ABORT		0x00000004 /* PIB reset during access */#define SCOM_INTF_ERR_UNKNOWN		0x80000000 /* Unknown error */	/*	 * Note: Any other bit set in intf_errors need to be considered as an	 * error. Future implementations may define new error conditions. The	 * pib_status below is only valid if intf_errors is 0.	 */	__u8	pib_status;	/* 3-bit PIB status */#define SCOM_PIB_SUCCESS	0	/* Access successful */#define SCOM_PIB_BLOCKED	1	/* PIB blocked, pls retry */#define SCOM_PIB_OFFLINE	2	/* Chiplet offline */#define SCOM_PIB_PARTIAL	3	/* Partial good */#define SCOM_PIB_BAD_ADDR	4	/* Invalid address */#define SCOM_PIB_CLK_ERR	5	/* Clock error */#define SCOM_PIB_PARITY_ERR	6	/* Parity error on the PIB bus */#define SCOM_PIB_TIMEOUT	7	/* Bus timeout */	__u8	pad;}; /* Flags for SCOM check */#define SCOM_CHECK_SUPPORTED	0x00000001	/* Interface supported */#define SCOM_CHECK_PROTECTED	0x00000002	/* Interface blocked by secure boot */ /* Flags for SCOM reset */#define SCOM_RESET_INTF		0x00000001	/* Reset interface */#define SCOM_RESET_PIB		0x00000002	/* Reset PIB */ #define FSI_SCOM_CHECK	_IOR('s', 0x00, __u32)#define FSI_SCOM_READ	_IOWR('s', 0x01, struct scom_access)#define FSI_SCOM_WRITE	_IOWR('s', 0x02, struct scom_access)#define FSI_SCOM_RESET	_IOW('s', 0x03, __u32) /* * /dev/sbefifo* ioctl interface */ /** * FSI_SBEFIFO_CMD_TIMEOUT sets the timeout for writing data to the SBEFIFO. * * The command timeout is specified in seconds.  The minimum value of command * timeout is 1 seconds (default) and the maximum value of command timeout is * 120 seconds.  A command timeout of 0 will reset the value to the default of * 1 seconds. */#define FSI_SBEFIFO_CMD_TIMEOUT_SECONDS		_IOW('s', 0x01, __u32) /** * FSI_SBEFIFO_READ_TIMEOUT sets the read timeout for response from SBE. * * The read timeout is specified in seconds.  The minimum value of read * timeout is 10 seconds (default) and the maximum value of read timeout is * 120 seconds.  A read timeout of 0 will reset the value to the default of * (10 seconds). */#define FSI_SBEFIFO_READ_TIMEOUT_SECONDS	_IOW('s', 0x00, __u32) #endif /* _UAPI_LINUX_FSI_H */