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authorPu Wen <puwen@hygon.cn>2018-10-04 09:21:43 +0800
committerBorislav Petkov <bp@suse.de>2018-10-04 09:57:25 +0200
commit995d5f64b62f20f05b8e0972f07ec4d6c23333c9 (patch)
tree807fdcca9114d04a4ca5c93e315bd06f41f56415 /tools
parentcc9690cfc7a36873b219d569049e10f073dd22e4 (diff)
tools/cpupower: Add Hygon Dhyana support
The tool cpupower is useful to get CPU frequency information and monitor power stats on the Hygon Dhyana platform. 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> Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Shuah Khan (Samsung OSG) <shuah@kernel.org> CC: Prarit Bhargava <prarit@redhat.com> CC: Shuah Khan <shuah@kernel.org> CC: Thomas Gleixner <tglx@linutronix.de> CC: Thomas Renninger <trenn@suse.com> CC: linux-pm@vger.kernel.org Link: http://lkml.kernel.org/r/5ce86123a7b9dad925ac583d88d2f921040e859b.1538583282.git.puwen@hygon.cn
Diffstat (limited to 'tools')
-rw-r--r--tools/power/cpupower/utils/cpufreq-info.c6
-rw-r--r--tools/power/cpupower/utils/helpers/amd.c4
-rw-r--r--tools/power/cpupower/utils/helpers/cpuid.c8
-rw-r--r--tools/power/cpupower/utils/helpers/helpers.h2
-rw-r--r--tools/power/cpupower/utils/helpers/misc.c2
-rw-r--r--tools/power/cpupower/utils/idle_monitor/mperf_monitor.c3
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 df43cd45d810..56e54eabc65c 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 bb41cdd0df6b..65beaeefeef0 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:

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