Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 cpu updates from Ingo Molnar:
 "The main changes in this cycle were:

   - Add support for the "Dhyana" x86 CPUs by Hygon: these are licensed
     based on the AMD Zen architecture, and are built and sold in China,
     for domestic datacenter use. The code is pretty close to AMD
     support, mostly with a few quirks and enumeration differences. (Pu
     Wen)

   - Enable CPUID support on Cyrix 6x86/6x86L processors"

* 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  tools/cpupower: Add Hygon Dhyana support
  cpufreq: Add Hygon Dhyana support
  ACPI: Add Hygon Dhyana support
  x86/xen: Add Hygon Dhyana support to Xen
  x86/kvm: Add Hygon Dhyana support to KVM
  x86/mce: Add Hygon Dhyana support to the MCA infrastructure
  x86/bugs: Add Hygon Dhyana to the respective mitigation machinery
  x86/apic: Add Hygon Dhyana support
  x86/pci, x86/amd_nb: Add Hygon Dhyana support to PCI and northbridge
  x86/amd_nb: Check vendor in AMD-only functions
  x86/alternative: Init ideal_nops for Hygon Dhyana
  x86/events: Add Hygon Dhyana support to PMU infrastructure
  x86/smpboot: Do not use BSP INIT delay and MWAIT to idle on Dhyana
  x86/cpu/mtrr: Support TOP_MEM2 and get MTRR number
  x86/cpu: Get cache info and setup cache cpumap for Hygon Dhyana
  x86/cpu: Create Hygon Dhyana architecture support file
  x86/CPU: Change query logic so CPUID is enabled before testing
  x86/CPU: Use correct macros for Cyrix calls

6 files changed, 15 insertions, 10 deletions

diff --git a/tools/power/cpupower/utils/cpufreq-info.c b/tools/power/cpupower/utils/cpufreq-info.c
index ccd08dd00996..c3f39d5128ee 100644
--- a/tools/power/cpupower/utils/cpufreq-info.c
+++ b/tools/power/cpupower/utils/cpufreq-info.c
@@ -170,6 +170,7 @@ static int get_boost_mode(unsigned int cpu)
 	unsigned long pstates[MAX_HW_PSTATES] = {0,};
 
 	if (cpupower_cpu_info.vendor != X86_VENDOR_AMD &&
+	    cpupower_cpu_info.vendor != X86_VENDOR_HYGON &&
 	    cpupower_cpu_info.vendor != X86_VENDOR_INTEL)
 		return 0;
 
@@ -190,8 +191,9 @@ static int get_boost_mode(unsigned int cpu)
 	printf(_("    Supported: %s\n"), support ? _("yes") : _("no"));
 	printf(_("    Active: %s\n"), active ? _("yes") : _("no"));
 
-	if (cpupower_cpu_info.vendor == X86_VENDOR_AMD &&
-	    cpupower_cpu_info.family >= 0x10) {
+	if ((cpupower_cpu_info.vendor == X86_VENDOR_AMD &&
+	     cpupower_cpu_info.family >= 0x10) ||
+	     cpupower_cpu_info.vendor == X86_VENDOR_HYGON) {
 		ret = decode_pstates(cpu, cpupower_cpu_info.family, b_states,
 				     pstates, &pstate_no);
 		if (ret)
diff --git a/tools/power/cpupower/utils/helpers/amd.c b/tools/power/cpupower/utils/helpers/amd.c
index 9607ada5b29a..7c4f83a8c973 100644
--- a/tools/power/cpupower/utils/helpers/amd.c
+++ b/tools/power/cpupower/utils/helpers/amd.c
@@ -45,7 +45,7 @@ static int get_did(int family, union msr_pstate pstate)
 
 	if (family == 0x12)
 		t = pstate.val & 0xf;
-	else if (family == 0x17)
+	else if (family == 0x17 || family == 0x18)
 		t = pstate.fam17h_bits.did;
 	else
 		t = pstate.bits.did;
@@ -59,7 +59,7 @@ static int get_cof(int family, union msr_pstate pstate)
 	int fid, did, cof;
 
 	did = get_did(family, pstate);
-	if (family == 0x17) {
+	if (family == 0x17 || family == 0x18) {
 		fid = pstate.fam17h_bits.fid;
 		cof = 200 * fid / did;
 	} else {
diff --git a/tools/power/cpupower/utils/helpers/cpuid.c b/tools/power/cpupower/utils/helpers/cpuid.c
index 732b0b41ba26..5cc39d4e23ed 100644
--- a/tools/power/cpupower/utils/helpers/cpuid.c
+++ b/tools/power/cpupower/utils/helpers/cpuid.c
@@ -8,7 +8,7 @@
 #include "helpers/helpers.h"
 
 static const char *cpu_vendor_table[X86_VENDOR_MAX] = {
-	"Unknown", "GenuineIntel", "AuthenticAMD",
+	"Unknown", "GenuineIntel", "AuthenticAMD", "HygonGenuine",
 };
 
 #if defined(__i386__) || defined(__x86_64__)
@@ -109,6 +109,7 @@ out:
 	fclose(fp);
 	/* Get some useful CPU capabilities from cpuid */
 	if (cpu_info->vendor != X86_VENDOR_AMD &&
+	    cpu_info->vendor != X86_VENDOR_HYGON &&
 	    cpu_info->vendor != X86_VENDOR_INTEL)
 		return ret;
 
@@ -124,8 +125,9 @@ out:
 	if (cpuid_level >= 6 && (cpuid_ecx(6) & 0x1))
 		cpu_info->caps |= CPUPOWER_CAP_APERF;
 
-	/* AMD Boost state enable/disable register */
-	if (cpu_info->vendor == X86_VENDOR_AMD) {
+	/* AMD or Hygon Boost state enable/disable register */
+	if (cpu_info->vendor == X86_VENDOR_AMD ||
+	    cpu_info->vendor == X86_VENDOR_HYGON) {
 		if (ext_cpuid_level >= 0x80000007 &&
 		    (cpuid_edx(0x80000007) & (1 << 9)))
 			cpu_info->caps |= CPUPOWER_CAP_AMD_CBP;
diff --git a/tools/power/cpupower/utils/helpers/helpers.h b/tools/power/cpupower/utils/helpers/helpers.h
index 41da392be448..902139689315 100644
--- a/tools/power/cpupower/utils/helpers/helpers.h
+++ b/tools/power/cpupower/utils/helpers/helpers.h
@@ -61,7 +61,7 @@ extern int be_verbose;
 
 /* cpuid and cpuinfo helpers  **************************/
 enum cpupower_cpu_vendor {X86_VENDOR_UNKNOWN = 0, X86_VENDOR_INTEL,
-			  X86_VENDOR_AMD, X86_VENDOR_MAX};
+			  X86_VENDOR_AMD, X86_VENDOR_HYGON, X86_VENDOR_MAX};
 
 #define CPUPOWER_CAP_INV_TSC		0x00000001
 #define CPUPOWER_CAP_APERF		0x00000002
diff --git a/tools/power/cpupower/utils/helpers/misc.c b/tools/power/cpupower/utils/helpers/misc.c
index 80fdf55f414d..f406adc40bad 100644
--- a/tools/power/cpupower/utils/helpers/misc.c
+++ b/tools/power/cpupower/utils/helpers/misc.c
@@ -26,7 +26,7 @@ int cpufreq_has_boost_support(unsigned int cpu, int *support, int *active,
 		 * has Hardware determined variable increments instead.
 		 */
 
-		if (cpu_info.family == 0x17) {
+		if (cpu_info.family == 0x17 || cpu_info.family == 0x18) {
 			if (!read_msr(cpu, MSR_AMD_HWCR, &val)) {
 				if (!(val & CPUPOWER_AMD_CPBDIS))
 					*active = 1;
diff --git a/tools/power/cpupower/utils/idle_monitor/mperf_monitor.c b/tools/power/cpupower/utils/idle_monitor/mperf_monitor.c
index d7c2a6d13dea..f2a7e9cfd577 100644
--- a/tools/power/cpupower/utils/idle_monitor/mperf_monitor.c
+++ b/tools/power/cpupower/utils/idle_monitor/mperf_monitor.c
@@ -241,7 +241,8 @@ static int init_maxfreq_mode(void)
 	if (!(cpupower_cpu_info.caps & CPUPOWER_CAP_INV_TSC))
 		goto use_sysfs;
 
-	if (cpupower_cpu_info.vendor == X86_VENDOR_AMD) {
+	if (cpupower_cpu_info.vendor == X86_VENDOR_AMD ||
+	    cpupower_cpu_info.vendor == X86_VENDOR_HYGON) {
 		/* MSR_AMD_HWCR tells us whether TSC runs at P0/mperf
 		 * freq.
 		 * A test whether hwcr is accessable/available would be: