Commit 9ee8a5d6 authored by Liao Xuan's avatar Liao Xuan
Browse files

x86/amd_nb: Get DF ID for Hygon family 18h model 7h 

hygon inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I9VW6G


CVE: NA

---------------------------

Hygon family 18h model 7h processor also get DF ID from F5x180[19:16].

Signed-off-by: default avatarLiao Xuan <liaoxuan@hygon.cn>
parent 68635247

arch/x86/kernel/amd_nb.c

+2 −1
Original line number Diff line number Diff line
@@ -328,7 +328,8 @@ int get_df_id(struct pci_dev *misc, u8 *id) 
	u32 value;

	int ret;



	if (boot_cpu_data.x86_model == 0x6) {

	if (boot_cpu_data.x86_model >= 0x6 &&

	    boot_cpu_data.x86_model <= 0x7) {

		/* F5x180[19:16]: DF ID */

		ret = get_df_register(misc, 5, 0x180, &value);

		*id = (value >> 16) & 0xf;