Base enablement patch to register performance monitoring
hardware support for power10. Patch introduce the raw event
encoding format, defines the supported list of events, config
fields for the event attributes and their corresponding bit values
which are exported via sysfs.
Patch also enhances the support function in isa207_common.c to
include power10 pmu hardware.
[Enablement of base PMU driver code]
Signed-off-by: Madhavan Srinivasan
[Addition of ISA macros for counter support functions]
Signed-off-by: Athira Rajeev
---
arch/powerpc/perf/Makefile | 2 +-
arch/powerpc/perf/core-book3s.c | 2 +
arch/powerpc/perf/internal.h| 1 +
arch/powerpc/perf/isa207-common.c | 59 -
arch/powerpc/perf/isa207-common.h | 33 ++-
arch/powerpc/perf/power10-events-list.h | 81 ++
arch/powerpc/perf/power10-pmu.c | 422
7 files changed, 589 insertions(+), 11 deletions(-)
create mode 100644 arch/powerpc/perf/power10-events-list.h
create mode 100644 arch/powerpc/perf/power10-pmu.c
diff --git a/arch/powerpc/perf/Makefile b/arch/powerpc/perf/Makefile
index 53d614e..c02854d 100644
--- a/arch/powerpc/perf/Makefile
+++ b/arch/powerpc/perf/Makefile
@@ -9,7 +9,7 @@ obj-$(CONFIG_PPC_PERF_CTRS) += core-book3s.o bhrb.o
obj64-$(CONFIG_PPC_PERF_CTRS) += ppc970-pmu.o power5-pmu.o \
power5+-pmu.o power6-pmu.o power7-pmu.o \
isa207-common.o power8-pmu.o power9-pmu.o \
- generic-compat-pmu.o
+ generic-compat-pmu.o power10-pmu.o
obj32-$(CONFIG_PPC_PERF_CTRS) += mpc7450-pmu.o
obj-$(CONFIG_PPC_POWERNV) += imc-pmu.o
diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c
index 6de81d1..44c86a9 100644
--- a/arch/powerpc/perf/core-book3s.c
+++ b/arch/powerpc/perf/core-book3s.c
@@ -2331,6 +2331,8 @@ static int __init init_ppc64_pmu(void)
return 0;
else if (!init_power9_pmu())
return 0;
+ else if (!init_power10_pmu())
+ return 0;
else if (!init_ppc970_pmu())
return 0;
else
diff --git a/arch/powerpc/perf/internal.h b/arch/powerpc/perf/internal.h
index f755c64..80bbf72 100644
--- a/arch/powerpc/perf/internal.h
+++ b/arch/powerpc/perf/internal.h
@@ -9,4 +9,5 @@
extern int init_power7_pmu(void);
extern int init_power8_pmu(void);
extern int init_power9_pmu(void);
+extern int init_power10_pmu(void);
extern int init_generic_compat_pmu(void);
diff --git a/arch/powerpc/perf/isa207-common.c
b/arch/powerpc/perf/isa207-common.c
index 4c86da5..7d4839e 100644
--- a/arch/powerpc/perf/isa207-common.c
+++ b/arch/powerpc/perf/isa207-common.c
@@ -55,7 +55,9 @@ static bool is_event_valid(u64 event)
{
u64 valid_mask = EVENT_VALID_MASK;
- if (cpu_has_feature(CPU_FTR_ARCH_300))
+ if (cpu_has_feature(CPU_FTR_ARCH_31))
+ valid_mask = p10_EVENT_VALID_MASK;
+ else if (cpu_has_feature(CPU_FTR_ARCH_300))
valid_mask = p9_EVENT_VALID_MASK;
return !(event & ~valid_mask);
@@ -69,6 +71,14 @@ static inline bool is_event_marked(u64 event)
return false;
}
+static unsigned long sdar_mod_val(u64 event)
+{
+ if (cpu_has_feature(CPU_FTR_ARCH_31))
+ return p10_SDAR_MODE(event);
+
+ return p9_SDAR_MODE(event);
+}
+
static void mmcra_sdar_mode(u64 event, unsigned long *mmcra)
{
/*
@@ -79,7 +89,7 @@ static void mmcra_sdar_mode(u64 event, unsigned long *mmcra)
* MMCRA[SDAR_MODE] will be programmed as "0b01" for continous sampling
* mode and will be un-changed when setting MMCRA[63] (Marked events).
*
-* Incase of Power9:
+* Incase of Power9/power10:
* Marked event: MMCRA[SDAR_MODE] will be set to 0b00 ('No Updates'),
* or if group already have any marked events.
* For rest
@@ -90,8 +100,8 @@ static void mmcra_sdar_mode(u64 event, unsigned long *mmcra)
if (cpu_has_feature(CPU_FTR_ARCH_300)) {
if (is_event_marked(event) || (*mmcra & MMCRA_SAMPLE_ENABLE))
*mmcra &= MMCRA_SDAR_MODE_NO_UPDATES;
- else if (p9_SDAR_MODE(event))
- *mmcra |= p9_SDAR_MODE(event) << MMCRA_SDAR_MODE_SHIFT;
+ else if (sdar_mod_val(event))
+ *mmcra |= sdar_mod_val(event) << MMCRA_SDAR_MODE_SHIFT;
else
*mmcra |= MMCRA_SDAR_MODE_DCACHE;
} else
@@ -134,7 +144,11 @@ static bool is_thresh_cmp_valid(u64 event)
/*
* Check the mantissa upper two bits are not zero, unless the
* exponent is also zero. See the THRESH_CMP_MANTISSA doc.
+* Power10: thresh_cmp is replaced by l2_l3 event select.
*/
+ if (cpu_has_feature(CPU_FTR_ARCH_31))
+
