90 static void init_amd_k5(struct cpuinfo_x86 *c)  in init_amd_k5()  argument
102 	if (c->x86_model == 9 || c->x86_model == 10) {  in init_amd_k5()
109 static void init_amd_k6(struct cpuinfo_x86 *c)  in init_amd_k6()  argument
115 	if (c->x86_model < 6) {  in init_amd_k6()
117 		if (c->x86_model == 0) {  in init_amd_k6()
118 			clear_cpu_cap(c, X86_FEATURE_APIC);  in init_amd_k6()
119 			set_cpu_cap(c, X86_FEATURE_PGE);  in init_amd_k6()
124 	if (c->x86_model == 6 && c->x86_stepping == 1) {  in init_amd_k6()
153 	if (c->x86_model < 8 ||  in init_amd_k6()
154 	   (c->x86_model == 8 && c->x86_stepping < 8)) {  in init_amd_k6()
173 	if ((c->x86_model == 8 && c->x86_stepping > 7) ||  in init_amd_k6()
174 	     c->x86_model == 9 || c->x86_model == 13) {  in init_amd_k6()
195 	if (c->x86_model == 10) {  in init_amd_k6()
203 static void init_amd_k7(struct cpuinfo_x86 *c)  in init_amd_k7()  argument
213 	if (c->x86_model >= 6 && c->x86_model <= 10) {  in init_amd_k7()
214 		if (!cpu_has(c, X86_FEATURE_XMM)) {  in init_amd_k7()
217 			set_cpu_cap(c, X86_FEATURE_XMM);  in init_amd_k7()
226 	if ((c->x86_model == 8 && c->x86_stepping >= 1) || (c->x86_model > 8)) {  in init_amd_k7()
236 	if (!c->cpu_index)  in init_amd_k7()
244 	if ((c->x86_model == 6) && ((c->x86_stepping == 0) ||  in init_amd_k7()
245 	    (c->x86_stepping == 1)))  in init_amd_k7()
249 	if ((c->x86_model == 7) && (c->x86_stepping == 0))  in init_amd_k7()
259 	if (((c->x86_model == 6) && (c->x86_stepping >= 2)) ||  in init_amd_k7()
260 	    ((c->x86_model == 7) && (c->x86_stepping >= 1)) ||  in init_amd_k7()
261 	     (c->x86_model > 7))  in init_amd_k7()
262 		if (cpu_has(c, X86_FEATURE_MP))  in init_amd_k7()
300 static void srat_detect_node(struct cpuinfo_x86 *c)  in srat_detect_node()  argument
305 	unsigned apicid = c->topo.apicid;  in srat_detect_node()
317 		x86_cpuinit.fixup_cpu_id(c, node);  in srat_detect_node()
339 		int ht_nodeid = c->topo.initial_apicid;  in srat_detect_node()
351 static void bsp_determine_snp(struct cpuinfo_x86 *c)  in bsp_determine_snp()  argument
356 	if (cpu_has(c, X86_FEATURE_SEV_SNP)) {  in bsp_determine_snp()
364 		if (!cpu_has(c, X86_FEATURE_HYPERVISOR) &&  in bsp_determine_snp()
378 static void bsp_init_amd(struct cpuinfo_x86 *c)  in bsp_init_amd()  argument
380 	if (cpu_has(c, X86_FEATURE_CONSTANT_TSC)) {  in bsp_init_amd()
382 		if (c->x86 > 0x10 ||  in bsp_init_amd()
383 		    (c->x86 == 0x10 && c->x86_model >= 0x2)) {  in bsp_init_amd()
392 	if (c->x86 == 0x15) {  in bsp_init_amd()
407 	if (cpu_has(c, X86_FEATURE_MWAITX))  in bsp_init_amd()
412 	    c->x86 >= 0x15 && c->x86 <= 0x17) {  in bsp_init_amd()
415 		switch (c->x86) {  in bsp_init_amd()
432 	resctrl_cpu_detect(c);  in bsp_init_amd()
435 	switch (c->x86) {  in bsp_init_amd()
437 		switch (c->x86_model) {  in bsp_init_amd()
454 		switch (c->x86_model) {  in bsp_init_amd()
469 		switch (c->x86_model) {  in bsp_init_amd()
489 	bsp_determine_snp(c);  in bsp_init_amd()
493 	WARN_ONCE(1, "Family 0x%x, model: 0x%x??\n", c->x86, c->x86_model);  in bsp_init_amd()
496 static void early_detect_mem_encrypt(struct cpuinfo_x86 *c)  in early_detect_mem_encrypt()  argument
514 	if (cpu_has(c, X86_FEATURE_SME) || cpu_has(c, X86_FEATURE_SEV)) {  in early_detect_mem_encrypt()
525 		c->x86_phys_bits -= (cpuid_ebx(0x8000001f) >> 6) & 0x3f;  in early_detect_mem_encrypt()
548 static void early_init_amd(struct cpuinfo_x86 *c)  in early_init_amd()  argument
552 	if (c->x86 >= 0xf)  in early_init_amd()
553 		set_cpu_cap(c, X86_FEATURE_K8);  in early_init_amd()
555 	rdmsr_safe(MSR_AMD64_PATCH_LEVEL, &c->microcode, &dummy);  in early_init_amd()
561 	if (c->x86_power & (1 << 8)) {  in early_init_amd()
562 		set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC);  in early_init_amd()
563 		set_cpu_cap(c, X86_FEATURE_NONSTOP_TSC);  in early_init_amd()
567 	if (c->x86_power & BIT(12))  in early_init_amd()
568 		set_cpu_cap(c, X86_FEATURE_ACC_POWER);  in early_init_amd()
571 	if (c->x86_power & BIT(14))  in early_init_amd()
572 		set_cpu_cap(c, X86_FEATURE_RAPL);  in early_init_amd()
575 	set_cpu_cap(c, X86_FEATURE_SYSCALL32);  in early_init_amd()
578 	if (c->x86 == 5)  in early_init_amd()
579 		if (c->x86_model == 13 || c->x86_model == 9 ||  in early_init_amd()
580 		    (c->x86_model == 8 && c->x86_stepping >= 8))  in early_init_amd()
581 			set_cpu_cap(c, X86_FEATURE_K6_MTRR);  in early_init_amd()
591 		if (c->x86 > 0x16)  in early_init_amd()
592 			set_cpu_cap(c, X86_FEATURE_EXTD_APICID);  in early_init_amd()
593 		else if (c->x86 >= 0xf) {  in early_init_amd()
599 				set_cpu_cap(c, X86_FEATURE_EXTD_APICID);  in early_init_amd()
609 	set_cpu_cap(c, X86_FEATURE_VMMCALL);  in early_init_amd()
612 	if (c->x86 == 0x16 && c->x86_model <= 0xf)  in early_init_amd()
615 	early_detect_mem_encrypt(c);  in early_init_amd()
617 	if (!cpu_has(c, X86_FEATURE_HYPERVISOR) && !cpu_has(c, X86_FEATURE_IBPB_BRTYPE)) {  in early_init_amd()
618 		if (c->x86 == 0x17 && boot_cpu_has(X86_FEATURE_AMD_IBPB))  in early_init_amd()
620 		else if (c->x86 >= 0x19 && !wrmsrl_safe(MSR_IA32_PRED_CMD, PRED_CMD_SBPB)) {  in early_init_amd()
627 static void init_amd_k8(struct cpuinfo_x86 *c)  in init_amd_k8()  argument
635 		set_cpu_cap(c, X86_FEATURE_REP_GOOD);  in init_amd_k8()
642 …if (c->x86_model < 0x14 && cpu_has(c, X86_FEATURE_LAHF_LM) && !cpu_has(c, X86_FEATURE_HYPERVISOR))…  in init_amd_k8()
643 		clear_cpu_cap(c, X86_FEATURE_LAHF_LM);  in init_amd_k8()
650 	if (!c->x86_model_id[0])  in init_amd_k8()
651 		strcpy(c->x86_model_id, "Hammer");  in init_amd_k8()
663 	set_cpu_bug(c, X86_BUG_SWAPGS_FENCE);  in init_amd_k8()
671 	if (c->x86_model > 0x41 ||  in init_amd_k8()
672 	    (c->x86_model == 0x41 && c->x86_stepping >= 0x2))  in init_amd_k8()
676 static void init_amd_gh(struct cpuinfo_x86 *c)  in init_amd_gh()  argument
680 	if (c == &boot_cpu_data)  in init_amd_gh()
707 	set_cpu_bug(c, X86_BUG_AMD_TLB_MMATCH);  in init_amd_gh()
715 	if (c->x86_model > 0x2 ||  in init_amd_gh()
716 	    (c->x86_model == 0x2 && c->x86_stepping >= 0x1))  in init_amd_gh()
720 static void init_amd_ln(struct cpuinfo_x86 *c)  in init_amd_ln()  argument
745 static void clear_rdrand_cpuid_bit(struct cpuinfo_x86 *c)  in clear_rdrand_cpuid_bit()  argument
773 	clear_cpu_cap(c, X86_FEATURE_RDRAND);  in clear_rdrand_cpuid_bit()
777 static void init_amd_jg(struct cpuinfo_x86 *c)  in init_amd_jg()  argument
784 	clear_rdrand_cpuid_bit(c);  in init_amd_jg()
787 static void init_amd_bd(struct cpuinfo_x86 *c)  in init_amd_bd()  argument
795 	if ((c->x86_model >= 0x02) && (c->x86_model < 0x20)) {  in init_amd_bd()
807 	clear_rdrand_cpuid_bit(c);  in init_amd_bd()
816 static void fix_erratum_1386(struct cpuinfo_x86 *c)  in fix_erratum_1386()  argument
832 	clear_cpu_cap(c, X86_FEATURE_XSAVES);  in fix_erratum_1386()
835 void init_spectral_chicken(struct cpuinfo_x86 *c)  in init_spectral_chicken()  argument
846 	if (!cpu_has(c, X86_FEATURE_HYPERVISOR)) {  in init_spectral_chicken()
863 static void init_amd_zen1(struct cpuinfo_x86 *c)  in init_amd_zen1()  argument
865 	fix_erratum_1386(c);  in init_amd_zen1()
868 	if (!cpu_has(c, X86_FEATURE_HYPERVISOR)) {  in init_amd_zen1()
871 		if (!cpu_has(c, X86_FEATURE_CPB))  in init_amd_zen1()
872 			set_cpu_cap(c, X86_FEATURE_CPB);  in init_amd_zen1()
883 	if (c->x86_model < 0x30) {  in init_amd_zen1()
885 		clear_cpu_cap(c, X86_FEATURE_IRPERF);  in init_amd_zen1()
910 static void zen2_zenbleed_check(struct cpuinfo_x86 *c)  in zen2_zenbleed_check()  argument
912 	if (cpu_has(c, X86_FEATURE_HYPERVISOR))  in zen2_zenbleed_check()
915 	if (!cpu_has(c, X86_FEATURE_AVX))  in zen2_zenbleed_check()
926 static void init_amd_zen2(struct cpuinfo_x86 *c)  in init_amd_zen2()  argument
928 	init_spectral_chicken(c);  in init_amd_zen2()
929 	fix_erratum_1386(c);  in init_amd_zen2()
930 	zen2_zenbleed_check(c);  in init_amd_zen2()
933 static void init_amd_zen3(struct cpuinfo_x86 *c)  in init_amd_zen3()  argument
935 	if (!cpu_has(c, X86_FEATURE_HYPERVISOR)) {  in init_amd_zen3()
941 		if (!cpu_has(c, X86_FEATURE_BTC_NO))  in init_amd_zen3()
942 			set_cpu_cap(c, X86_FEATURE_BTC_NO);  in init_amd_zen3()
946 static void init_amd_zen4(struct cpuinfo_x86 *c)  in init_amd_zen4()  argument
948 	if (!cpu_has(c, X86_FEATURE_HYPERVISOR))  in init_amd_zen4()
955 	switch (c->x86_model) {  in init_amd_zen4()
958 		clear_cpu_cap(c, X86_FEATURE_V_VMSAVE_VMLOAD);  in init_amd_zen4()
963 static void init_amd_zen5(struct cpuinfo_x86 *c)  in init_amd_zen5()  argument
967 static void init_amd(struct cpuinfo_x86 *c)  in init_amd()  argument
971 	early_init_amd(c);  in init_amd()
977 	clear_cpu_cap(c, 0*32+31);  in init_amd()
979 	if (c->x86 >= 0x10)  in init_amd()
980 		set_cpu_cap(c, X86_FEATURE_REP_GOOD);  in init_amd()
983 	if (cpu_has(c, X86_FEATURE_FSRM))  in init_amd()
984 		set_cpu_cap(c, X86_FEATURE_FSRS);  in init_amd()
987 	if (c->x86 < 6)  in init_amd()
988 		clear_cpu_cap(c, X86_FEATURE_MCE);  in init_amd()
990 	switch (c->x86) {  in init_amd()
991 	case 4:    init_amd_k5(c); break;  in init_amd()
992 	case 5:    init_amd_k6(c); break;  in init_amd()
993 	case 6:	   init_amd_k7(c); break;  in init_amd()
994 	case 0xf:  init_amd_k8(c); break;  in init_amd()
995 	case 0x10: init_amd_gh(c); break;  in init_amd()
996 	case 0x12: init_amd_ln(c); break;  in init_amd()
997 	case 0x15: init_amd_bd(c); break;  in init_amd()
998 	case 0x16: init_amd_jg(c); break;  in init_amd()
1005 	if (c->x86 >= 0x17)  in init_amd()
1009 		init_amd_zen1(c);  in init_amd()
1011 		init_amd_zen2(c);  in init_amd()
1013 		init_amd_zen3(c);  in init_amd()
1015 		init_amd_zen4(c);  in init_amd()
1017 		init_amd_zen5(c);  in init_amd()
1023 	if ((c->x86 >= 6) && (!cpu_has(c, X86_FEATURE_XSAVEERPTR)))  in init_amd()
1024 		set_cpu_bug(c, X86_BUG_FXSAVE_LEAK);  in init_amd()
1026 	cpu_detect_cache_sizes(c);  in init_amd()
1028 	srat_detect_node(c);  in init_amd()
1030 	init_amd_cacheinfo(c);  in init_amd()
1032 	if (cpu_has(c, X86_FEATURE_SVM)) {  in init_amd()
1036 			clear_cpu_cap(c, X86_FEATURE_SVM);  in init_amd()
1040 	if (!cpu_has(c, X86_FEATURE_LFENCE_RDTSC) && cpu_has(c, X86_FEATURE_XMM2)) {  in init_amd()
1051 		set_cpu_cap(c, X86_FEATURE_LFENCE_RDTSC);  in init_amd()
1058 	if (c->x86 > 0x11)  in init_amd()
1059 		set_cpu_cap(c, X86_FEATURE_ARAT);  in init_amd()
1062 	if (!cpu_has(c, X86_FEATURE_3DNOWPREFETCH))  in init_amd()
1063 		if (cpu_has(c, X86_FEATURE_3DNOW) || cpu_has(c, X86_FEATURE_LM))  in init_amd()
1064 			set_cpu_cap(c, X86_FEATURE_3DNOWPREFETCH);  in init_amd()
1068 		set_cpu_bug(c, X86_BUG_SYSRET_SS_ATTRS);  in init_amd()
1071 	if (cpu_has(c, X86_FEATURE_IRPERF))  in init_amd()
1074 	check_null_seg_clears_base(c);  in init_amd()
1084 	    cpu_has(c, X86_FEATURE_AUTOIBRS))  in init_amd()
1088 	clear_cpu_cap(c, X86_FEATURE_APIC_MSRS_FENCE);  in init_amd()
1091 	if (cpu_has(c, X86_FEATURE_TCE))  in init_amd()
1096 static unsigned int amd_size_cache(struct cpuinfo_x86 *c, unsigned int size)  in amd_size_cache()  argument
1099 	if (c->x86 == 6) {  in amd_size_cache()
1101 		if (c->x86_model == 3 && c->x86_stepping == 0)  in amd_size_cache()
1104 		if (c->x86_model == 4 &&  in amd_size_cache()
1105 			(c->x86_stepping == 0 || c->x86_stepping == 1))  in amd_size_cache()
1112 static void cpu_detect_tlb_amd(struct cpuinfo_x86 *c)  in cpu_detect_tlb_amd()  argument
1117 	if (c->x86 < 0xf)  in cpu_detect_tlb_amd()
1120 	if (c->extended_cpuid_level < 0x80000006)  in cpu_detect_tlb_amd()
1132 	if (c->x86 == 0xf) {  in cpu_detect_tlb_amd()
1149 		if (c->x86 == 0x15 && c->x86_model <= 0x1f) {  in cpu_detect_tlb_amd()
1161 	if (cpu_has(c, X86_FEATURE_INVLPGB))  in cpu_detect_tlb_amd()
1232 	struct cpuinfo_x86 *c = &cpu_data(smp_processor_id());  in zenbleed_check_cpu()  local
1234 	zen2_zenbleed_check(c);  in zenbleed_check_cpu()