On 15/12/15 08:49, Shannon Zhao wrote: > From: Shannon Zhao <shannon.zhao@xxxxxxxxxx> > > To use the ARMv8 PMU related register defines from the KVM code, > we move the relevant definitions to asm/pmu.h header file. > > Signed-off-by: Anup Patel <anup.patel@xxxxxxxxxx> > Signed-off-by: Shannon Zhao <shannon.zhao@xxxxxxxxxx> > --- > arch/arm64/include/asm/pmu.h | 64 ++++++++++++++++++++++++++++++++++++++++++ > arch/arm64/kernel/perf_event.c | 36 +----------------------- > 2 files changed, 65 insertions(+), 35 deletions(-) > create mode 100644 arch/arm64/include/asm/pmu.h > > diff --git a/arch/arm64/include/asm/pmu.h b/arch/arm64/include/asm/pmu.h > new file mode 100644 > index 0000000..4264ea0 > --- /dev/null > +++ b/arch/arm64/include/asm/pmu.h > @@ -0,0 +1,64 @@ > +/* > + * Copyright (C) 2015 Linaro Ltd, Shannon Zhao Erm, not quite. You're simply moving existing code from one file to another. That doesn't change the copyright of said code, which reads: * PMU support * * Copyright (C) 2012 ARM Limited * Author: Will Deacon <will.deacon@xxxxxxx> Please keep this mention in place. > + * > + * This program is free software; you can redistribute it and/or modify > + * it under the terms of the GNU General Public License version 2 as > + * published by the Free Software Foundation. > + * > + * This program is distributed in the hope that it will be useful, > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + * GNU General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License > + * along with this program. If not, see <http://www.gnu.org/licenses/>. > + */ > +#ifndef __ASM_PMU_H > +#define __ASM_PMU_H > + > +#define ARMV8_MAX_COUNTERS 32 > +#define ARMV8_COUNTER_MASK (ARMV8_MAX_COUNTERS - 1) > + > +/* > + * Per-CPU PMCR: config reg > + */ > +#define ARMV8_PMCR_E (1 << 0) /* Enable all counters */ > +#define ARMV8_PMCR_P (1 << 1) /* Reset all counters */ > +#define ARMV8_PMCR_C (1 << 2) /* Cycle counter reset */ > +#define ARMV8_PMCR_D (1 << 3) /* CCNT counts every 64th cpu cycle */ > +#define ARMV8_PMCR_X (1 << 4) /* Export to ETM */ > +#define ARMV8_PMCR_DP (1 << 5) /* Disable CCNT if non-invasive debug*/ > +#define ARMV8_PMCR_N_SHIFT 11 /* Number of counters supported */ > +#define ARMV8_PMCR_N_MASK 0x1f > +#define ARMV8_PMCR_MASK 0x3f /* Mask for writable bits */ > + > +/* > + * PMCNTEN: counters enable reg > + */ > +#define ARMV8_CNTEN_MASK 0xffffffff /* Mask for writable bits */ > + > +/* > + * PMINTEN: counters interrupt enable reg > + */ > +#define ARMV8_INTEN_MASK 0xffffffff /* Mask for writable bits */ > + > +/* > + * PMOVSR: counters overflow flag status reg > + */ > +#define ARMV8_OVSR_MASK 0xffffffff /* Mask for writable bits */ > +#define ARMV8_OVERFLOWED_MASK ARMV8_OVSR_MASK > + > +/* > + * PMXEVTYPER: Event selection reg > + */ > +#define ARMV8_EVTYPE_MASK 0xc80003ff /* Mask for writable bits */ > +#define ARMV8_EVTYPE_EVENT 0x3ff /* Mask for EVENT bits */ > + > +/* > + * Event filters for PMUv3 > + */ > +#define ARMV8_EXCLUDE_EL1 (1 << 31) > +#define ARMV8_EXCLUDE_EL0 (1 << 30) > +#define ARMV8_INCLUDE_EL2 (1 << 27) > + > +#endif /* __ASM_PMU_H */ > diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c > index 5b1897e..7eca5dc 100644 > --- a/arch/arm64/kernel/perf_event.c > +++ b/arch/arm64/kernel/perf_event.c > @@ -24,6 +24,7 @@ > #include <linux/of.h> > #include <linux/perf/arm_pmu.h> > #include <linux/platform_device.h> > +#include <asm/pmu.h> > > /* > * ARMv8 PMUv3 Performance Events handling code. > @@ -187,9 +188,6 @@ static const unsigned armv8_a57_perf_cache_map[PERF_COUNT_HW_CACHE_MAX] > #define ARMV8_IDX_COUNTER_LAST(cpu_pmu) \ > (ARMV8_IDX_CYCLE_COUNTER + cpu_pmu->num_events - 1) > > -#define ARMV8_MAX_COUNTERS 32 > -#define ARMV8_COUNTER_MASK (ARMV8_MAX_COUNTERS - 1) > - > /* > * ARMv8 low level PMU access > */ > @@ -200,38 +198,6 @@ static const unsigned armv8_a57_perf_cache_map[PERF_COUNT_HW_CACHE_MAX] > #define ARMV8_IDX_TO_COUNTER(x) \ > (((x) - ARMV8_IDX_COUNTER0) & ARMV8_COUNTER_MASK) > > -/* > - * Per-CPU PMCR: config reg > - */ > -#define ARMV8_PMCR_E (1 << 0) /* Enable all counters */ > -#define ARMV8_PMCR_P (1 << 1) /* Reset all counters */ > -#define ARMV8_PMCR_C (1 << 2) /* Cycle counter reset */ > -#define ARMV8_PMCR_D (1 << 3) /* CCNT counts every 64th cpu cycle */ > -#define ARMV8_PMCR_X (1 << 4) /* Export to ETM */ > -#define ARMV8_PMCR_DP (1 << 5) /* Disable CCNT if non-invasive debug*/ > -#define ARMV8_PMCR_N_SHIFT 11 /* Number of counters supported */ > -#define ARMV8_PMCR_N_MASK 0x1f > -#define ARMV8_PMCR_MASK 0x3f /* Mask for writable bits */ > - > -/* > - * PMOVSR: counters overflow flag status reg > - */ > -#define ARMV8_OVSR_MASK 0xffffffff /* Mask for writable bits */ > -#define ARMV8_OVERFLOWED_MASK ARMV8_OVSR_MASK > - > -/* > - * PMXEVTYPER: Event selection reg > - */ > -#define ARMV8_EVTYPE_MASK 0xc80003ff /* Mask for writable bits */ > -#define ARMV8_EVTYPE_EVENT 0x3ff /* Mask for EVENT bits */ > - > -/* > - * Event filters for PMUv3 > - */ > -#define ARMV8_EXCLUDE_EL1 (1 << 31) > -#define ARMV8_EXCLUDE_EL0 (1 << 30) > -#define ARMV8_INCLUDE_EL2 (1 << 27) > - > static inline u32 armv8pmu_pmcr_read(void) > { > u32 val; > Thanks, M. -- Jazz is not dead. 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