diff options
Diffstat (limited to 'arch/x86/kernel/amd_node.c')
| -rw-r--r-- | arch/x86/kernel/amd_node.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/kernel/amd_node.c b/arch/x86/kernel/amd_node.c index d2ec7fd555c51..65045f223c10a 100644 --- a/arch/x86/kernel/amd_node.c +++ b/arch/x86/kernel/amd_node.c @@ -97,6 +97,9 @@ static DEFINE_MUTEX(smn_mutex); #define SMN_INDEX_OFFSET 0x60 #define SMN_DATA_OFFSET 0x64 +#define HSMP_INDEX_OFFSET 0xc4 +#define HSMP_DATA_OFFSET 0xc8 + /* * SMN accesses may fail in ways that are difficult to detect here in the called * functions amd_smn_read() and amd_smn_write(). Therefore, callers must do @@ -179,6 +182,12 @@ int __must_check amd_smn_write(u16 node, u32 address, u32 value) } EXPORT_SYMBOL_GPL(amd_smn_write); +int __must_check amd_smn_hsmp_rdwr(u16 node, u32 address, u32 *value, bool write) +{ + return __amd_smn_rw(HSMP_INDEX_OFFSET, HSMP_DATA_OFFSET, node, address, value, write); +} +EXPORT_SYMBOL_GPL(amd_smn_hsmp_rdwr); + static int amd_cache_roots(void) { u16 node, num_nodes = amd_num_nodes(); |