* [PATCH 1/2] perf/x86/rapl: Enable Apollo Lake RAPL support
@ 2016-09-08 9:08 Harry Pan
2016-09-08 9:08 ` [PATCH 2/2] perf/x86/rapl: Enable Baytrail/Braswell " Harry Pan
2016-09-10 12:42 ` [tip:perf/core] perf/x86/rapl: Enable Apollo Lake " tip-bot for Harry Pan
0 siblings, 2 replies; 7+ messages in thread
From: Harry Pan @ 2016-09-08 9:08 UTC (permalink / raw)
To: LKML
Cc: gs0622, Harry Pan, tglx, mingo, hpa, x86, peterz, bp,
srinivas.pandruvada
This patch enables RAPL counters (energy consumption counters)
support for Intel Apollo Lake (Goldmont) processors (Model 92):
RAPL of Goldmont, unlikes ESU increment of Silvermont/Airmont,
it likes the Haswell microarchitecture in 1/2^ESU joules and
supports power domains in PP0/PP1/PKG/RAM.
ESU and power domains refer to Intel Software Developers' Manual,
Vol. 3C, Order No. 325384, Table 35-12.
Usage example:
$ perf list
$ perf stat -a -e power/energy-cores/,power/energy-pkg/ sleep 10
Signed-off-by: Harry Pan <harry.pan@intel.com>
---
arch/x86/events/intel/rapl.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/x86/events/intel/rapl.c b/arch/x86/events/intel/rapl.c
index 2886593..f7924640 100644
--- a/arch/x86/events/intel/rapl.c
+++ b/arch/x86/events/intel/rapl.c
@@ -765,6 +765,8 @@ static const struct x86_cpu_id rapl_cpu_match[] __initconst = {
X86_RAPL_MODEL_MATCH(INTEL_FAM6_SKYLAKE_MOBILE, skl_rapl_init),
X86_RAPL_MODEL_MATCH(INTEL_FAM6_SKYLAKE_DESKTOP, skl_rapl_init),
X86_RAPL_MODEL_MATCH(INTEL_FAM6_SKYLAKE_X, hsx_rapl_init),
+
+ X86_RAPL_MODEL_MATCH(INTEL_FAM6_ATOM_GOLDMONT, hsw_rapl_init),
{},
};
--
2.6.6
^ permalink raw reply [flat|nested] 7+ messages in thread
* [PATCH 2/2] perf/x86/rapl: Enable Baytrail/Braswell RAPL support
2016-09-08 9:08 [PATCH 1/2] perf/x86/rapl: Enable Apollo Lake RAPL support Harry Pan
@ 2016-09-08 9:08 ` Harry Pan
2016-09-09 9:29 ` Peter Zijlstra
2016-09-10 12:42 ` [tip:perf/core] perf/x86/rapl: Enable Apollo Lake " tip-bot for Harry Pan
1 sibling, 1 reply; 7+ messages in thread
From: Harry Pan @ 2016-09-08 9:08 UTC (permalink / raw)
To: LKML
Cc: gs0622, Harry Pan, tglx, mingo, hpa, x86, peterz, bp,
srinivas.pandruvada, ray.huang
This patch enables RAPL counters (energy consumption counters)
support for Intel Baytrail and Braswell processors (Model 55 and 76):
The Silvermont/Airmont microarchitecture actually uses fixed
energy status unit (ESU) in smallest unit of microjoule,
this patch adds quirk for these Atom processors (BYT/BSW)
to calculate energy increment in 2^ESU microjoules.
ESU and power domains refer to Intel Software Developers' Manual,
Vol. 3C, Order No. 325384, Table 35-8.
Usage example:
$ perf list
$ perf stat -a -e power/energy-cores/,power/energy-pkg/ sleep 10
This patch also enables multiple quirks.
Signed-off-by: Harry Pan <harry.pan@intel.com>
Signed-off-by: Harry Pan <harry.pan@intel.com>
---
arch/x86/events/intel/rapl.c | 78 ++++++++++++++++++++++++++++++++++++++------
1 file changed, 68 insertions(+), 10 deletions(-)
diff --git a/arch/x86/events/intel/rapl.c b/arch/x86/events/intel/rapl.c
index f7924640..fdd4d86 100644
--- a/arch/x86/events/intel/rapl.c
+++ b/arch/x86/events/intel/rapl.c
@@ -110,6 +110,10 @@ static const char *const rapl_domain_names[NR_RAPL_DOMAINS] __initconst = {
#define RAPL_IDX_KNL (1<<RAPL_IDX_PKG_NRG_STAT|\
1<<RAPL_IDX_RAM_NRG_STAT)
+/* Baytrail/Braswell clients have PP0, PKG */
+#define RAPL_IDX_BYT (1<<RAPL_IDX_PP0_NRG_STAT|\
+ 1<<RAPL_IDX_PKG_NRG_STAT)
+
/*
* event code: LSB 8 bits, passed in attr->config
* any other bit is reserved
@@ -136,6 +140,11 @@ static struct perf_pmu_events_attr event_attr_##v = { \
.event_str = str, \
};
+enum rapl_quirk {
+ RAPL_HSX_QUIRK = 1,
+ RAPL_BYT_QUIRK,
+};
+
struct rapl_pmu {
raw_spinlock_t lock;
int n_active;
@@ -158,6 +167,7 @@ static struct rapl_pmus *rapl_pmus;
static cpumask_t rapl_cpu_mask;
static unsigned int rapl_cntr_mask;
static u64 rapl_timer_ms;
+static bool is_baytrail;
static inline struct rapl_pmu *cpu_to_rapl_pmu(unsigned int cpu)
{
@@ -177,6 +187,16 @@ static inline u64 rapl_scale(u64 v, int cfg)
pr_warn("Invalid domain %d, failed to scale data\n", cfg);
return v;
}
+
+ /*
+ * Some Atom series processors (BYT/BSW) use 2^ESU microjoules.
+ *
+ * TODO: this looks hacky, it's better to refactor scale-up mechanism
+ * to compromise the main stream processors and Atom ones.
+ */
+ if (is_baytrail)
+ return v << rapl_hw_unit[cfg - 1];
+
/*
* scale delta to smallest unit (1/2^32)
* users must then scale back: count * 1/(1e9*2^32) to get Joules
@@ -452,6 +472,14 @@ RAPL_EVENT_ATTR_STR(energy-ram.scale, rapl_ram_scale, "2.3283064365386962890
RAPL_EVENT_ATTR_STR(energy-gpu.scale, rapl_gpu_scale, "2.3283064365386962890625e-10");
RAPL_EVENT_ATTR_STR(energy-psys.scale, rapl_psys_scale, "2.3283064365386962890625e-10");
+/*
+ * Some Atom series processors (BYT/BSW) have fixed
+ * energy status unit (ESU) in smallest unit of microjoule,
+ * and its increment is in 2^ESU microjoules.
+ */
+RAPL_EVENT_ATTR_STR(energy-cores.scale, rapl_byt_cores_scale, "1.0e-6");
+RAPL_EVENT_ATTR_STR(energy-pkg.scale, rapl_byt_pkg_scale, "1.0e-6");
+
static struct attribute *rapl_events_srv_attr[] = {
EVENT_PTR(rapl_cores),
EVENT_PTR(rapl_pkg),
@@ -533,6 +561,18 @@ static struct attribute *rapl_events_knl_attr[] = {
NULL,
};
+static struct attribute *rapl_events_byt_attr[] = {
+ EVENT_PTR(rapl_cores),
+ EVENT_PTR(rapl_pkg),
+
+ EVENT_PTR(rapl_cores_unit),
+ EVENT_PTR(rapl_pkg_unit),
+
+ EVENT_PTR(rapl_byt_cores_scale),
+ EVENT_PTR(rapl_byt_pkg_scale),
+ NULL,
+};
+
static struct attribute_group rapl_pmu_events_group = {
.name = "events",
.attrs = NULL, /* patched at runtime */
@@ -617,7 +657,7 @@ static int rapl_cpu_prepare(unsigned int cpu)
return 0;
}
-static int rapl_check_hw_unit(bool apply_quirk)
+static int rapl_check_hw_unit(enum rapl_quirk apply_quirk)
{
u64 msr_rapl_power_unit_bits;
int i;
@@ -634,10 +674,20 @@ static int rapl_check_hw_unit(bool apply_quirk)
* "Intel Xeon Processor E5-1600 and E5-2600 v3 Product Families, V2
* of 2. Datasheet, September 2014, Reference Number: 330784-001 "
*/
- if (apply_quirk)
+ if (apply_quirk == RAPL_HSX_QUIRK)
rapl_hw_unit[RAPL_IDX_RAM_NRG_STAT] = 16;
/*
+ * Some Atom processors (BYT/BSW) have 2^ESU microjoules increment,
+ * refer to Software Developers' Manual, Vol. 3C, Order No. 325384,
+ * Table 35-8 of MSR_RAPL_POWER_UNIT
+ */
+ if (apply_quirk == RAPL_BYT_QUIRK)
+ is_baytrail = true;
+ else
+ is_baytrail = false;
+
+ /*
* Calculate the timer rate:
* Use reference of 200W for scaling the timeout to avoid counter
* overflows. 200W = 200 Joules/sec
@@ -702,47 +752,53 @@ static int __init init_rapl_pmus(void)
{ X86_VENDOR_INTEL, 6, model, X86_FEATURE_ANY, (unsigned long)&init }
struct intel_rapl_init_fun {
- bool apply_quirk;
+ enum rapl_quirk apply_quirk;
int cntr_mask;
struct attribute **attrs;
};
static const struct intel_rapl_init_fun snb_rapl_init __initconst = {
- .apply_quirk = false,
+ .apply_quirk = 0,
.cntr_mask = RAPL_IDX_CLN,
.attrs = rapl_events_cln_attr,
};
static const struct intel_rapl_init_fun hsx_rapl_init __initconst = {
- .apply_quirk = true,
+ .apply_quirk = RAPL_HSX_QUIRK,
.cntr_mask = RAPL_IDX_SRV,
.attrs = rapl_events_srv_attr,
};
static const struct intel_rapl_init_fun hsw_rapl_init __initconst = {
- .apply_quirk = false,
+ .apply_quirk = 0,
.cntr_mask = RAPL_IDX_HSW,
.attrs = rapl_events_hsw_attr,
};
static const struct intel_rapl_init_fun snbep_rapl_init __initconst = {
- .apply_quirk = false,
+ .apply_quirk = 0,
.cntr_mask = RAPL_IDX_SRV,
.attrs = rapl_events_srv_attr,
};
static const struct intel_rapl_init_fun knl_rapl_init __initconst = {
- .apply_quirk = true,
+ .apply_quirk = RAPL_HSX_QUIRK,
.cntr_mask = RAPL_IDX_KNL,
.attrs = rapl_events_knl_attr,
};
static const struct intel_rapl_init_fun skl_rapl_init __initconst = {
- .apply_quirk = false,
+ .apply_quirk = 0,
.cntr_mask = RAPL_IDX_SKL_CLN,
.attrs = rapl_events_skl_attr,
};
+static const struct intel_rapl_init_fun byt_rapl_init __initconst = {
+ .apply_quirk = RAPL_BYT_QUIRK,
+ .cntr_mask = RAPL_IDX_BYT,
+ .attrs = rapl_events_byt_attr,
+};
+
static const struct x86_cpu_id rapl_cpu_match[] __initconst = {
X86_RAPL_MODEL_MATCH(INTEL_FAM6_SANDYBRIDGE, snb_rapl_init),
X86_RAPL_MODEL_MATCH(INTEL_FAM6_SANDYBRIDGE_X, snbep_rapl_init),
@@ -766,6 +822,8 @@ static const struct x86_cpu_id rapl_cpu_match[] __initconst = {
X86_RAPL_MODEL_MATCH(INTEL_FAM6_SKYLAKE_DESKTOP, skl_rapl_init),
X86_RAPL_MODEL_MATCH(INTEL_FAM6_SKYLAKE_X, hsx_rapl_init),
+ X86_RAPL_MODEL_MATCH(INTEL_FAM6_ATOM_SILVERMONT1, byt_rapl_init),
+ X86_RAPL_MODEL_MATCH(INTEL_FAM6_ATOM_AIRMONT, byt_rapl_init),
X86_RAPL_MODEL_MATCH(INTEL_FAM6_ATOM_GOLDMONT, hsw_rapl_init),
{},
};
@@ -776,7 +834,7 @@ static int __init rapl_pmu_init(void)
{
const struct x86_cpu_id *id;
struct intel_rapl_init_fun *rapl_init;
- bool apply_quirk;
+ enum rapl_quirk apply_quirk;
int ret;
id = x86_match_cpu(rapl_cpu_match);
--
2.6.6
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH 2/2] perf/x86/rapl: Enable Baytrail/Braswell RAPL support
2016-09-08 9:08 ` [PATCH 2/2] perf/x86/rapl: Enable Baytrail/Braswell " Harry Pan
@ 2016-09-09 9:29 ` Peter Zijlstra
2016-09-09 15:08 ` Pan, Harry
0 siblings, 1 reply; 7+ messages in thread
From: Peter Zijlstra @ 2016-09-09 9:29 UTC (permalink / raw)
To: Harry Pan
Cc: LKML, gs0622, tglx, mingo, hpa, x86, bp, srinivas.pandruvada, ray.huang
On Thu, Sep 08, 2016 at 05:08:58PM +0800, Harry Pan wrote:
> @@ -177,6 +187,16 @@ static inline u64 rapl_scale(u64 v, int cfg)
> pr_warn("Invalid domain %d, failed to scale data\n", cfg);
> return v;
> }
> +
> + /*
> + * Some Atom series processors (BYT/BSW) use 2^ESU microjoules.
> + *
> + * TODO: this looks hacky, it's better to refactor scale-up mechanism
> + * to compromise the main stream processors and Atom ones.
> + */
> + if (is_baytrail)
> + return v << rapl_hw_unit[cfg - 1];
> +
Can't you simply set rapl_hw_unit[] such that 32 - rapl_hw_unit[] ends
up at the right number? Then you only get to much with values in
rapl_check_hw_unit without runtime overhead later.
> +static int rapl_check_hw_unit(enum rapl_quirk apply_quirk)
> {
> u64 msr_rapl_power_unit_bits;
> int i;
> @@ -634,10 +674,20 @@ static int rapl_check_hw_unit(bool apply_quirk)
> * "Intel Xeon Processor E5-1600 and E5-2600 v3 Product Families, V2
> * of 2. Datasheet, September 2014, Reference Number: 330784-001 "
> */
> - if (apply_quirk)
> + if (apply_quirk == RAPL_HSX_QUIRK)
> rapl_hw_unit[RAPL_IDX_RAM_NRG_STAT] = 16;
>
> /*
> + * Some Atom processors (BYT/BSW) have 2^ESU microjoules increment,
> + * refer to Software Developers' Manual, Vol. 3C, Order No. 325384,
> + * Table 35-8 of MSR_RAPL_POWER_UNIT
> + */
> + if (apply_quirk == RAPL_BYT_QUIRK)
> + is_baytrail = true;
> + else
> + is_baytrail = false;
it was already false...
/*
* comment explaining quirk goes here...
*/
if (apply_quirk = RAPL_BYT_QUIRK) {
for (i = 0; i < NR_RAPL_DOMAINS; i++)
rapl_hw_unit[i] = 32 - rapl_hw_unit[i];
}
and then you get to verify what to do with rapl_timer_ms.
> static const struct intel_rapl_init_fun snb_rapl_init __initconst = {
> - .apply_quirk = false,
> + .apply_quirk = 0,
Either leave it out (unmentioned members get initialized to 0) or add
RAPL_NO_QUIRK or so.
> .cntr_mask = RAPL_IDX_CLN,
> .attrs = rapl_events_cln_attr,
> };
>
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH 2/2] perf/x86/rapl: Enable Baytrail/Braswell RAPL support
2016-09-09 9:29 ` Peter Zijlstra
@ 2016-09-09 15:08 ` Pan, Harry
0 siblings, 0 replies; 7+ messages in thread
From: Pan, Harry @ 2016-09-09 15:08 UTC (permalink / raw)
To: peterz
Cc: linux-kernel, tglx, ray.huang, x86, hpa, srinivas.pandruvada, mingo, bp
Hi Peter,
Totally agreed and uploaded patchset again.
https://lkml.org/lkml/2016/9/9/467
https://lkml.org/lkml/2016/9/9/468
One more thing, I did not refine rapl_advertise() description.
Advice is welcome.
Sincerely,
Harry
On Fri, 2016-09-09 at 11:29 +0200, Peter Zijlstra wrote:
> On Thu, Sep 08, 2016 at 05:08:58PM +0800, Harry Pan wrote:
>
> > @@ -177,6 +187,16 @@ static inline u64 rapl_scale(u64 v, int cfg)
> > pr_warn("Invalid domain %d, failed to scale data\n", cfg);
> > return v;
> > }
> > +
> > + /*
> > + * Some Atom series processors (BYT/BSW) use 2^ESU microjoules.
> > + *
> > + * TODO: this looks hacky, it's better to refactor scale-up mechanism
> > + * to compromise the main stream processors and Atom ones.
> > + */
> > + if (is_baytrail)
> > + return v << rapl_hw_unit[cfg - 1];
> > +
>
> Can't you simply set rapl_hw_unit[] such that 32 - rapl_hw_unit[] ends
> up at the right number? Then you only get to much with values in
> rapl_check_hw_unit without runtime overhead later.
>
> > +static int rapl_check_hw_unit(enum rapl_quirk apply_quirk)
> > {
> > u64 msr_rapl_power_unit_bits;
> > int i;
> > @@ -634,10 +674,20 @@ static int rapl_check_hw_unit(bool apply_quirk)
> > * "Intel Xeon Processor E5-1600 and E5-2600 v3 Product Families, V2
> > * of 2. Datasheet, September 2014, Reference Number: 330784-001 "
> > */
> > - if (apply_quirk)
> > + if (apply_quirk == RAPL_HSX_QUIRK)
> > rapl_hw_unit[RAPL_IDX_RAM_NRG_STAT] = 16;
> >
> > /*
> > + * Some Atom processors (BYT/BSW) have 2^ESU microjoules increment,
> > + * refer to Software Developers' Manual, Vol. 3C, Order No. 325384,
> > + * Table 35-8 of MSR_RAPL_POWER_UNIT
> > + */
> > + if (apply_quirk == RAPL_BYT_QUIRK)
> > + is_baytrail = true;
> > + else
> > + is_baytrail = false;
>
> it was already false...
>
> /*
> * comment explaining quirk goes here...
> */
> if (apply_quirk = RAPL_BYT_QUIRK) {
> for (i = 0; i < NR_RAPL_DOMAINS; i++)
> rapl_hw_unit[i] = 32 - rapl_hw_unit[i];
> }
>
> and then you get to verify what to do with rapl_timer_ms.
>
>
>
> > static const struct intel_rapl_init_fun snb_rapl_init __initconst = {
> > - .apply_quirk = false,
> > + .apply_quirk = 0,
>
> Either leave it out (unmentioned members get initialized to 0) or add
> RAPL_NO_QUIRK or so.
>
> > .cntr_mask = RAPL_IDX_CLN,
> > .attrs = rapl_events_cln_attr,
> > };
> >
^ permalink raw reply [flat|nested] 7+ messages in thread
* [tip:perf/core] perf/x86/rapl: Enable Apollo Lake RAPL support
2016-09-08 9:08 [PATCH 1/2] perf/x86/rapl: Enable Apollo Lake RAPL support Harry Pan
2016-09-08 9:08 ` [PATCH 2/2] perf/x86/rapl: Enable Baytrail/Braswell " Harry Pan
@ 2016-09-10 12:42 ` tip-bot for Harry Pan
1 sibling, 0 replies; 7+ messages in thread
From: tip-bot for Harry Pan @ 2016-09-10 12:42 UTC (permalink / raw)
To: linux-tip-commits
Cc: alexander.shishkin, linux-kernel, tglx, eranian, torvalds, mingo,
harry.pan, hpa, vincent.weaver, acme, peterz, jolsa
Commit-ID: 2668c6195685f4b6f281767d10b4f4f2e32c2305
Gitweb: http://git.kernel.org/tip/2668c6195685f4b6f281767d10b4f4f2e32c2305
Author: Harry Pan <harry.pan@intel.com>
AuthorDate: Thu, 8 Sep 2016 17:08:57 +0800
Committer: Ingo Molnar <mingo@kernel.org>
CommitDate: Sat, 10 Sep 2016 11:18:52 +0200
perf/x86/rapl: Enable Apollo Lake RAPL support
This patch enables RAPL counters (energy consumption counters)
support for Intel Apollo Lake (Goldmont) processors (Model 92):
RAPL of Goldmont, unlikes ESU increment of Silvermont/Airmont,
it likes the Haswell microarchitecture in 1/2^ESU joules and
supports power domains in PP0/PP1/PKG/RAM.
ESU and power domains refer to Intel Software Developers' Manual,
Vol. 3C, Order No. 325384, Table 35-12.
Usage example:
$ perf list
$ perf stat -a -e power/energy-cores/,power/energy-pkg/ sleep 10
Signed-off-by: Harry Pan <harry.pan@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: bp@alien8.de
Cc: gs0622@gmail.com
Cc: hpa@zytor.com
Cc: srinivas.pandruvada@linux.intel.com
Link: http://lkml.kernel.org/r/1473325738-730-1-git-send-email-harry.pan@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/x86/events/intel/rapl.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/x86/events/intel/rapl.c b/arch/x86/events/intel/rapl.c
index 62bebcc..b0f0e83 100644
--- a/arch/x86/events/intel/rapl.c
+++ b/arch/x86/events/intel/rapl.c
@@ -767,6 +767,8 @@ static const struct x86_cpu_id rapl_cpu_match[] __initconst = {
X86_RAPL_MODEL_MATCH(INTEL_FAM6_SKYLAKE_MOBILE, skl_rapl_init),
X86_RAPL_MODEL_MATCH(INTEL_FAM6_SKYLAKE_DESKTOP, skl_rapl_init),
X86_RAPL_MODEL_MATCH(INTEL_FAM6_SKYLAKE_X, hsx_rapl_init),
+
+ X86_RAPL_MODEL_MATCH(INTEL_FAM6_ATOM_GOLDMONT, hsw_rapl_init),
{},
};
^ permalink raw reply [flat|nested] 7+ messages in thread
* [PATCH 1/2] perf/x86/rapl: Enable Apollo Lake RAPL support
@ 2016-09-09 17:53 Harry Pan
0 siblings, 0 replies; 7+ messages in thread
From: Harry Pan @ 2016-09-09 17:53 UTC (permalink / raw)
To: LKML
Cc: gs0622, Harry Pan, tglx, mingo, hpa, x86, peterz, bp,
dave.hansen, srinivas.pandruvada
This patch enables RAPL counters (energy consumption counters)
support for Intel Apollo Lake (Goldmont) processors (Model 92):
RAPL of Goldmont, unlikes ESU increment of Silvermont/Airmont,
it likes the Haswell microarchitecture in 1/2^ESU joules and
supports power domains in PP0/PP1/PKG/RAM.
ESU and power domains refer to Intel Software Developers' Manual,
Vol. 3C, Order No. 325384, Table 35-12.
Usage example:
$ perf list
$ perf stat -a -e power/energy-cores/,power/energy-pkg/ sleep 10
Signed-off-by: Harry Pan <harry.pan@intel.com>
---
arch/x86/events/intel/rapl.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/x86/events/intel/rapl.c b/arch/x86/events/intel/rapl.c
index 2886593..f7924640 100644
--- a/arch/x86/events/intel/rapl.c
+++ b/arch/x86/events/intel/rapl.c
@@ -765,6 +765,8 @@ static const struct x86_cpu_id rapl_cpu_match[] __initconst = {
X86_RAPL_MODEL_MATCH(INTEL_FAM6_SKYLAKE_MOBILE, skl_rapl_init),
X86_RAPL_MODEL_MATCH(INTEL_FAM6_SKYLAKE_DESKTOP, skl_rapl_init),
X86_RAPL_MODEL_MATCH(INTEL_FAM6_SKYLAKE_X, hsx_rapl_init),
+
+ X86_RAPL_MODEL_MATCH(INTEL_FAM6_ATOM_GOLDMONT, hsw_rapl_init),
{},
};
--
2.6.6
^ permalink raw reply [flat|nested] 7+ messages in thread
* [PATCH 1/2] perf/x86/rapl: Enable Apollo Lake RAPL support
@ 2016-09-09 15:01 Harry Pan
0 siblings, 0 replies; 7+ messages in thread
From: Harry Pan @ 2016-09-09 15:01 UTC (permalink / raw)
To: LKML
Cc: gs0622, Harry Pan, tglx, mingo, hpa, x86, peterz, bp,
srinivas.pandruvada, ray.huang
This patch enables RAPL counters (energy consumption counters)
support for Intel Apollo Lake (Goldmont) processors (Model 92):
RAPL of Goldmont, unlikes ESU increment of Silvermont/Airmont,
it likes the Haswell microarchitecture in 1/2^ESU joules and
supports power domains in PP0/PP1/PKG/RAM.
ESU and power domains refer to Intel Software Developers' Manual,
Vol. 3C, Order No. 325384, Table 35-12.
Usage example:
$ perf list
$ perf stat -a -e power/energy-cores/,power/energy-pkg/ sleep 10
Signed-off-by: Harry Pan <harry.pan@intel.com>
---
arch/x86/events/intel/rapl.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/x86/events/intel/rapl.c b/arch/x86/events/intel/rapl.c
index 2886593..f7924640 100644
--- a/arch/x86/events/intel/rapl.c
+++ b/arch/x86/events/intel/rapl.c
@@ -765,6 +765,8 @@ static const struct x86_cpu_id rapl_cpu_match[] __initconst = {
X86_RAPL_MODEL_MATCH(INTEL_FAM6_SKYLAKE_MOBILE, skl_rapl_init),
X86_RAPL_MODEL_MATCH(INTEL_FAM6_SKYLAKE_DESKTOP, skl_rapl_init),
X86_RAPL_MODEL_MATCH(INTEL_FAM6_SKYLAKE_X, hsx_rapl_init),
+
+ X86_RAPL_MODEL_MATCH(INTEL_FAM6_ATOM_GOLDMONT, hsw_rapl_init),
{},
};
--
2.6.6
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2016-09-10 12:46 UTC | newest]
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-- links below jump to the message on this page --
2016-09-08 9:08 [PATCH 1/2] perf/x86/rapl: Enable Apollo Lake RAPL support Harry Pan
2016-09-08 9:08 ` [PATCH 2/2] perf/x86/rapl: Enable Baytrail/Braswell " Harry Pan
2016-09-09 9:29 ` Peter Zijlstra
2016-09-09 15:08 ` Pan, Harry
2016-09-10 12:42 ` [tip:perf/core] perf/x86/rapl: Enable Apollo Lake " tip-bot for Harry Pan
2016-09-09 15:01 [PATCH 1/2] " Harry Pan
2016-09-09 17:53 Harry Pan
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