* [PATCH v2 1/1] riscv: Select ARCH_SUPPORTS_ATOMIC_RMW by default
@ 2020-06-05 5:15 Chenxi Mao
2020-06-05 9:03 ` Anup Patel
2020-06-18 21:53 ` Palmer Dabbelt
0 siblings, 2 replies; 3+ messages in thread
From: Chenxi Mao @ 2020-06-05 5:15 UTC (permalink / raw)
To: paul.walmsley; +Cc: palmer, aou, linux-riscv, linux-kernel, maochenxi
Select ARCH_SUPPORTS_ATOMIC_RMW by default to enabel osqlocks.
PS2: Add signed off info.
Signed-off-by: Chenxi Mao <maochenxi@eswin.com>
---
arch/riscv/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index a31e1a41913a..cbdc605d20d9 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -68,6 +68,7 @@ config RISCV
select ARCH_HAS_GCOV_PROFILE_ALL
select HAVE_COPY_THREAD_TLS
select HAVE_ARCH_KASAN if MMU && 64BIT
+ select ARCH_SUPPORTS_ATOMIC_RMW
config ARCH_MMAP_RND_BITS_MIN
default 18 if 64BIT
--
2.25.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH v2 1/1] riscv: Select ARCH_SUPPORTS_ATOMIC_RMW by default
2020-06-05 5:15 [PATCH v2 1/1] riscv: Select ARCH_SUPPORTS_ATOMIC_RMW by default Chenxi Mao
@ 2020-06-05 9:03 ` Anup Patel
2020-06-18 21:53 ` Palmer Dabbelt
1 sibling, 0 replies; 3+ messages in thread
From: Anup Patel @ 2020-06-05 9:03 UTC (permalink / raw)
To: Chenxi Mao
Cc: Paul Walmsley, linux-riscv, Albert Ou, Palmer Dabbelt,
linux-kernel@vger.kernel.org List
On Fri, Jun 5, 2020 at 10:45 AM Chenxi Mao <maochenxi@eswin.com> wrote:
>
> Select ARCH_SUPPORTS_ATOMIC_RMW by default to enabel osqlocks.
>
> PS2: Add signed off info.
>
> Signed-off-by: Chenxi Mao <maochenxi@eswin.com>
> ---
> arch/riscv/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
> index a31e1a41913a..cbdc605d20d9 100644
> --- a/arch/riscv/Kconfig
> +++ b/arch/riscv/Kconfig
> @@ -68,6 +68,7 @@ config RISCV
> select ARCH_HAS_GCOV_PROFILE_ALL
> select HAVE_COPY_THREAD_TLS
> select HAVE_ARCH_KASAN if MMU && 64BIT
> + select ARCH_SUPPORTS_ATOMIC_RMW
>
> config ARCH_MMAP_RND_BITS_MIN
> default 18 if 64BIT
> --
> 2.25.1
>
>
Looks good to me.
Reviewed-by: Anup Patel <anup@brainfault.org>
This is a good candidate for Linux-5.8. Palmer ??
Regards,
Anup
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH v2 1/1] riscv: Select ARCH_SUPPORTS_ATOMIC_RMW by default
2020-06-05 5:15 [PATCH v2 1/1] riscv: Select ARCH_SUPPORTS_ATOMIC_RMW by default Chenxi Mao
2020-06-05 9:03 ` Anup Patel
@ 2020-06-18 21:53 ` Palmer Dabbelt
1 sibling, 0 replies; 3+ messages in thread
From: Palmer Dabbelt @ 2020-06-18 21:53 UTC (permalink / raw)
To: maochenxi; +Cc: Paul Walmsley, aou, linux-riscv, linux-kernel, maochenxi
On Thu, 04 Jun 2020 22:15:10 PDT (-0700), maochenxi@eswin.com wrote:
> Select ARCH_SUPPORTS_ATOMIC_RMW by default to enabel osqlocks.
>
> PS2: Add signed off info.
>
> Signed-off-by: Chenxi Mao <maochenxi@eswin.com>
> ---
> arch/riscv/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
> index a31e1a41913a..cbdc605d20d9 100644
> --- a/arch/riscv/Kconfig
> +++ b/arch/riscv/Kconfig
> @@ -68,6 +68,7 @@ config RISCV
> select ARCH_HAS_GCOV_PROFILE_ALL
> select HAVE_COPY_THREAD_TLS
> select HAVE_ARCH_KASAN if MMU && 64BIT
> + select ARCH_SUPPORTS_ATOMIC_RMW
>
> config ARCH_MMAP_RND_BITS_MIN
> default 18 if 64BIT
Thanks, this is on for-next.
^ permalink raw reply [flat|nested] 3+ messages in thread
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2020-06-18 21:53 ` Palmer Dabbelt
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