summaryrefslogtreecommitdiffstats
path: root/include/uapi/misc/amd-apml.h
diff options
context:
space:
mode:
authorAndi Shyti <andi.shyti@linux.intel.com>2026-08-22 14:19:12 +0200
committerAndi Shyti <andi.shyti@linux.intel.com>2026-08-22 14:19:34 +0200
commitd576a9561a1c80ae593539fb0ce0743d66825ac2 (patch)
tree68f6de7e06b350afa42edeea2f7f33f086014597 /include/uapi/misc/amd-apml.h
downloadlinux-stable-d576a9561a1c80ae593539fb0ce0743d66825ac2.tar.gz
linux-stable-d576a9561a1c80ae593539fb0ce0743d66825ac2.zip
Merge tag 'rust-i2c-for-7.3' into i2c/i2cgrafted
i2c: rust: mark I2cAdapter methods as inline A single cleanup for the Rust I2C abstractions, targeting 7.3. `I2cAdapter::get`, `inc_ref`, and `dec_ref` are trivial wrappers around `i2c_get_adapter`/`i2c_put_adapter` and were showing up as their own symbols in the build. Mark them `#[inline]` so they get folded into their callers instead. Signed-off-by: Igor Korotin <igor.korotin@linux.dev> * tag 'rust-i2c-for-7.3': i2c: rust: mark I2cAdapter methods as inline
Diffstat (limited to 'include/uapi/misc/amd-apml.h')
-rw-r--r--include/uapi/misc/amd-apml.h152
1 files changed, 152 insertions, 0 deletions
diff --git a/include/uapi/misc/amd-apml.h b/include/uapi/misc/amd-apml.h
new file mode 100644
index 000000000..745b3338f
--- /dev/null
+++ b/include/uapi/misc/amd-apml.h
@@ -0,0 +1,152 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/*
+ * Copyright (C) 2021-2024 Advanced Micro Devices, Inc.
+ */
+#ifndef _AMD_APML_H_
+#define _AMD_APML_H_
+
+#include <linux/types.h>
+
+/* Mailbox data size for data_in and data_out */
+#define AMD_SBI_MB_DATA_SIZE 4
+
+struct apml_mbox_msg {
+ /*
+ * Mailbox Message ID
+ */
+ __u32 cmd;
+ /*
+ * [0]...[3] mailbox 32bit input/output data
+ */
+ __u32 mb_in_out;
+ /*
+ * Error code is returned in case of soft mailbox error
+ */
+ __u32 fw_ret_code;
+};
+
+struct apml_cpuid_msg {
+ /*
+ * CPUID input
+ * [0]...[3] cpuid func,
+ * [4][5] cpuid: thread
+ * [6] cpuid: ext function & read eax/ebx or ecx/edx
+ * [7:0] -> bits [7:4] -> ext function &
+ * bit [0] read eax/ebx or ecx/edx
+ * CPUID output
+ */
+ __u64 cpu_in_out;
+ /*
+ * Status code for CPUID read
+ */
+ __u32 fw_ret_code;
+ __u32 pad;
+};
+
+struct apml_mcamsr_msg {
+ /*
+ * MCAMSR input
+ * [0]...[3] mca msr func,
+ * [4][5] thread
+ * MCAMSR output
+ */
+ __u64 mcamsr_in_out;
+ /*
+ * Status code for MCA/MSR access
+ */
+ __u32 fw_ret_code;
+ __u32 pad;
+};
+
+struct apml_reg_xfer_msg {
+ /*
+ * RMI register address offset
+ */
+ __u16 reg_addr;
+ /*
+ * Register data for read/write
+ */
+ __u8 data_in_out;
+ /*
+ * Register read or write
+ */
+ __u8 rflag;
+};
+
+/*
+ * AMD sideband interface base IOCTL
+ */
+#define SB_BASE_IOCTL_NR 0xF9
+
+/**
+ * DOC: SBRMI_IOCTL_MBOX_CMD
+ *
+ * @Parameters
+ *
+ * @struct apml_mbox_msg
+ * Pointer to the &struct apml_mbox_msg that will contain the protocol
+ * information
+ *
+ * @Description
+ * IOCTL command for APML messages using generic _IOWR
+ * The IOCTL provides userspace access to AMD sideband mailbox protocol
+ * - Mailbox message read/write(0x0~0xFF)
+ * - returning "-EFAULT" if none of the above
+ * "-EPROTOTYPE" error is returned to provide additional error details
+ */
+#define SBRMI_IOCTL_MBOX_CMD _IOWR(SB_BASE_IOCTL_NR, 0, struct apml_mbox_msg)
+
+/**
+ * DOC: SBRMI_IOCTL_CPUID_CMD
+ *
+ * @Parameters
+ *
+ * @struct apml_cpuid_msg
+ * Pointer to the &struct apml_cpuid_msg that will contain the protocol
+ * information
+ *
+ * @Description
+ * IOCTL command for APML messages using generic _IOWR
+ * The IOCTL provides userspace access to AMD sideband cpuid protocol
+ * - CPUID protocol to get CPU details for Function/Ext Function
+ * at thread level
+ * - returning "-EFAULT" if none of the above
+ * "-EPROTOTYPE" error is returned to provide additional error details
+ */
+#define SBRMI_IOCTL_CPUID_CMD _IOWR(SB_BASE_IOCTL_NR, 1, struct apml_cpuid_msg)
+
+/**
+ * DOC: SBRMI_IOCTL_MCAMSR_CMD
+ *
+ * @Parameters
+ *
+ * @struct apml_mcamsr_msg
+ * Pointer to the &struct apml_mcamsr_msg that will contain the protocol
+ * information
+ *
+ * @Description
+ * IOCTL command for APML messages using generic _IOWR
+ * The IOCTL provides userspace access to AMD sideband MCAMSR protocol
+ * - MCAMSR protocol to get MCA bank details for Function at thread level
+ * - returning "-EFAULT" if none of the above
+ * "-EPROTOTYPE" error is returned to provide additional error details
+ */
+#define SBRMI_IOCTL_MCAMSR_CMD _IOWR(SB_BASE_IOCTL_NR, 2, struct apml_mcamsr_msg)
+
+/**
+ * DOC: SBRMI_IOCTL_REG_XFER_CMD
+ *
+ * @Parameters
+ *
+ * @struct apml_reg_xfer_msg
+ * Pointer to the &struct apml_reg_xfer_msg that will contain the protocol
+ * information
+ *
+ * @Description
+ * IOCTL command for APML messages using generic _IOWR
+ * The IOCTL provides userspace access to AMD sideband register xfer protocol
+ * - Register xfer protocol to get/set hardware register for given offset
+ */
+#define SBRMI_IOCTL_REG_XFER_CMD _IOWR(SB_BASE_IOCTL_NR, 3, struct apml_reg_xfer_msg)
+
+#endif /*_AMD_APML_H_*/