diff mbox series

[v6,16/16] cpupower, x86: Add Hygon Dhyana support

Message ID c26bcce9f41bee8b6921f67e6171a49b17010b8d.1536550550.git.puwen@hygon.cn (mailing list archive)
State Not Applicable, archived
Headers show
Series Add support for Hygon Dhyana Family 18h processor | expand

Commit Message

Pu Wen Sept. 10, 2018, 1:20 p.m. UTC
Tool cpupower is useful to get CPU frequency information and monitor
power stats on Hygon Dhyana platforms. So add Hygon Dhyana support to
it by checking vendor and family to share the code path of AMD family
17h.

Signed-off-by: Pu Wen <puwen@hygon.cn>
---
 tools/power/cpupower/utils/cpufreq-info.c               | 6 ++++--
 tools/power/cpupower/utils/helpers/amd.c                | 4 ++--
 tools/power/cpupower/utils/helpers/cpuid.c              | 8 +++++---
 tools/power/cpupower/utils/helpers/helpers.h            | 2 +-
 tools/power/cpupower/utils/helpers/misc.c               | 2 +-
 tools/power/cpupower/utils/idle_monitor/mperf_monitor.c | 3 ++-
 6 files changed, 15 insertions(+), 10 deletions(-)

Comments

shuah Oct. 1, 2018, 7:38 p.m. UTC | #1
On 09/10/2018 07:20 AM, Pu Wen wrote:
> Tool cpupower is useful to get CPU frequency information and monitor
> power stats on Hygon Dhyana platforms. So add Hygon Dhyana support to
> it by checking vendor and family to share the code path of AMD family
> 17h.
> 
> Signed-off-by: Pu Wen <puwen@hygon.cn>

Looks good to me. I am assuming it will go into x86 with the rest of the
series.

Acked-by: Shuah Khan (Samsung OSG) <shuah@kernel.org>

thanks,
-- Shuah
diff mbox series

Patch

diff --git a/tools/power/cpupower/utils/cpufreq-info.c b/tools/power/cpupower/utils/cpufreq-info.c
index df43cd4..56e54ea 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 bb41cdd..65beaee 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 732b0b4..5cc39d4 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 @@  int get_cpu_info(struct cpupower_cpu_info *cpu_info)
 	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 @@  int get_cpu_info(struct cpupower_cpu_info *cpu_info)
 	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 41da392..9021396 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 80fdf55..f406adc 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 d7c2a6d..f2a7e9c 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: