summaryrefslogtreecommitdiff
path: root/arch/x86/include/asm/amd_node.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/x86/include/asm/amd_node.h')
-rw-r--r--arch/x86/include/asm/amd_node.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/x86/include/asm/amd_node.h b/arch/x86/include/asm/amd_node.h
index 113ad3e8ee40..002c3afbd30f 100644
--- a/arch/x86/include/asm/amd_node.h
+++ b/arch/x86/include/asm/amd_node.h
@@ -30,7 +30,20 @@ static inline u16 amd_num_nodes(void)
return topology_amd_nodes_per_pkg() * topology_max_packages();
}
+#ifdef CONFIG_AMD_NODE
int __must_check amd_smn_read(u16 node, u32 address, u32 *value);
int __must_check amd_smn_write(u16 node, u32 address, u32 value);
+/* Should only be used by the HSMP driver. */
+int __must_check amd_smn_hsmp_rdwr(u16 node, u32 address, u32 *value, bool write);
+#else
+static inline int __must_check amd_smn_read(u16 node, u32 address, u32 *value) { return -ENODEV; }
+static inline int __must_check amd_smn_write(u16 node, u32 address, u32 value) { return -ENODEV; }
+
+static inline int __must_check amd_smn_hsmp_rdwr(u16 node, u32 address, u32 *value, bool write)
+{
+ return -ENODEV;
+}
+#endif /* CONFIG_AMD_NODE */
+
#endif /*_ASM_X86_AMD_NODE_H_*/