[PATCH] riscv: Add HAVE_IRQ_TIME_ACCOUNTING

[Palmer Dabbelt]

On Thu, 12 Nov 2020 00:56:13 PST (-0800), wangkefeng.wang at huawei.com wrote:
> Any comments, kindly ping...

I guess I missed this one too.  It's now on for-next as well.  Thanks!

>
> On 2020/10/28 12:28, Kefeng Wang wrote:
>> RISCV_TIMER/CLINT_TIMER is required for RISC-V system, and it
>> provides sched_clock, which allow us to enable IRQ_TIME_ACCOUNTING.
>>
>> Signed-off-by: Kefeng Wang <wangkefeng.wang at huawei.com>
>> ---
>>   Documentation/features/time/irq-time-acct/arch-support.txt | 2 +-
>>   arch/riscv/Kconfig                                         | 1 +
>>   2 files changed, 2 insertions(+), 1 deletion(-)
>>
>> diff --git a/Documentation/features/time/irq-time-acct/arch-support.txt b/Documentation/features/time/irq-time-acct/arch-support.txt
>> index d9082b91f10e..6fc03deb1c38 100644
>> --- a/Documentation/features/time/irq-time-acct/arch-support.txt
>> +++ b/Documentation/features/time/irq-time-acct/arch-support.txt
>> @@ -23,7 +23,7 @@
>>       |    openrisc: | TODO |
>>       |      parisc: |  ..  |
>>       |     powerpc: |  ok  |
>> -    |       riscv: | TODO |
>> +    |       riscv: |  ok  |
>>       |        s390: |  ..  |
>>       |          sh: | TODO |
>>       |       sparc: |  ..  |
>> diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
>> index 44377fd7860e..dfbc1351ee62 100644
>> --- a/arch/riscv/Kconfig
>> +++ b/arch/riscv/Kconfig
>> @@ -68,6 +68,7 @@ config RISCV
>>   	select HAVE_FUTEX_CMPXCHG if FUTEX
>>   	select HAVE_GCC_PLUGINS
>>   	select HAVE_GENERIC_VDSO if MMU && 64BIT
>> +	select HAVE_IRQ_TIME_ACCOUNTING
>>   	select HAVE_PCI
>>   	select HAVE_PERF_EVENTS
>>   	select HAVE_PERF_REGS