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| author | Shuai Xue <xueshuai@linux.alibaba.com> | 2022-08-18 06:18:21 +0300 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2022-09-22 16:09:10 +0300 |
| commit | cf7b61073e4526caa247616f6fbb174cbd2a5366 (patch) | |
| tree | 3b4faefa89d698ea7d66967bedea2c81c9398d42 /drivers/perf/Makefile | |
| parent | a6f92909d6bb59eafa004178983850a1b739e304 (diff) | |
| download | linux-cf7b61073e4526caa247616f6fbb174cbd2a5366.tar.xz | |
drivers/perf: add DDR Sub-System Driveway PMU driver for Yitian 710 SoC
Add the DDR Sub-System Driveway Performance Monitoring Unit (PMU) driver
support for Alibaba T-Head Yitian 710 SoC chip. Yitian supports DDR5/4
DRAM and targets cloud computing and HPC.
Each PMU is registered as a device in /sys/bus/event_source/devices, and
users can select event to monitor in each sub-channel, independently. For
example, ali_drw_21000 and ali_drw_21080 are two PMU devices for two
sub-channels of the same channel in die 0. And the PMU device of die 1 is
prefixed with ali_drw_400XXXXX, e.g. ali_drw_40021000.
Due to hardware limitation, one of DDRSS Driveway PMU overflow interrupt
shares the same irq number with MPAM ERR_IRQ. To register DDRSS PMU and
MPAM drivers successfully, add IRQF_SHARED flag.
Signed-off-by: Shuai Xue <xueshuai@linux.alibaba.com>
Co-developed-by: Hongbo Yao <yaohongbo@linux.alibaba.com>
Signed-off-by: Hongbo Yao <yaohongbo@linux.alibaba.com>
Co-developed-by: Neng Chen <nengchen@linux.alibaba.com>
Signed-off-by: Neng Chen <nengchen@linux.alibaba.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Link: https://lore.kernel.org/r/20220818031822.38415-3-xueshuai@linux.alibaba.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'drivers/perf/Makefile')
| -rw-r--r-- | drivers/perf/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/perf/Makefile b/drivers/perf/Makefile index 57a279c61df5..050d04ee19dd 100644 --- a/drivers/perf/Makefile +++ b/drivers/perf/Makefile @@ -20,3 +20,4 @@ obj-$(CONFIG_ARM_DMC620_PMU) += arm_dmc620_pmu.o obj-$(CONFIG_MARVELL_CN10K_TAD_PMU) += marvell_cn10k_tad_pmu.o obj-$(CONFIG_MARVELL_CN10K_DDR_PMU) += marvell_cn10k_ddr_pmu.o obj-$(CONFIG_APPLE_M1_CPU_PMU) += apple_m1_cpu_pmu.o +obj-$(CONFIG_ALIBABA_UNCORE_DRW_PMU) += alibaba_uncore_drw_pmu.o |