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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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#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 */