cpp-d1064d

[cross.git] / i686-linux-gnu-4.7 / usr / include / linux / fsi.h

diff --git a/i686-linux-gnu-4.7/usr/include/linux/fsi.h b/i686-linux-gnu-4.7/usr/include/linux/fsi.h
new file mode 100644 (file)
index 0000000..095b1a4
--- /dev/null
+++ b/i686-linux-gnu-4.7/usr/include/linux/fsi.h
@@ -0,0 +1,58 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
+#ifndef _LINUX_FSI_H
+#define _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)
+
+#endif /* _LINUX_FSI_H */