[v3] Zacas/Zabha support and qspinlocks

[PATCH v3 09/11] riscv: Add ISA extension parsing for Ziccrse

Posted by Alexandre Ghiti 1 year, 5 months ago

Add support to parse the Ziccrse string in the riscv,isa string.

Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
---
 arch/riscv/include/asm/hwcap.h | 1 +
 arch/riscv/kernel/cpufeature.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/arch/riscv/include/asm/hwcap.h b/arch/riscv/include/asm/hwcap.h
index f71ddd2ca163..863b9b7d4a4f 100644
--- a/arch/riscv/include/asm/hwcap.h
+++ b/arch/riscv/include/asm/hwcap.h
@@ -82,6 +82,7 @@
 #define RISCV_ISA_EXT_ZACAS		73
 #define RISCV_ISA_EXT_XANDESPMU		74
 #define RISCV_ISA_EXT_ZABHA		75
+#define RISCV_ISA_EXT_ZICCRSE		76
 
 #define RISCV_ISA_EXT_XLINUXENVCFG	127
 
diff --git a/arch/riscv/kernel/cpufeature.c b/arch/riscv/kernel/cpufeature.c
index c125d82c894b..93d8cc7e232c 100644
--- a/arch/riscv/kernel/cpufeature.c
+++ b/arch/riscv/kernel/cpufeature.c
@@ -306,6 +306,7 @@ const struct riscv_isa_ext_data riscv_isa_ext[] = {
 	__RISCV_ISA_EXT_DATA(svnapot, RISCV_ISA_EXT_SVNAPOT),
 	__RISCV_ISA_EXT_DATA(svpbmt, RISCV_ISA_EXT_SVPBMT),
 	__RISCV_ISA_EXT_DATA(xandespmu, RISCV_ISA_EXT_XANDESPMU),
+	__RISCV_ISA_EXT_DATA(ziccrse, RISCV_ISA_EXT_ZICCRSE),
 };
 
 const size_t riscv_isa_ext_count = ARRAY_SIZE(riscv_isa_ext);
-- 
2.39.2

Re: [PATCH v3 09/11] riscv: Add ISA extension parsing for Ziccrse

Posted by Samuel Holland 1 year, 5 months ago

Hi Alex,

On 2024-07-17 1:19 AM, Alexandre Ghiti wrote:
> Add support to parse the Ziccrse string in the riscv,isa string.
> 
> Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
> ---
>  arch/riscv/include/asm/hwcap.h | 1 +
>  arch/riscv/kernel/cpufeature.c | 1 +
>  2 files changed, 2 insertions(+)
> 
> diff --git a/arch/riscv/include/asm/hwcap.h b/arch/riscv/include/asm/hwcap.h
> index f71ddd2ca163..863b9b7d4a4f 100644
> --- a/arch/riscv/include/asm/hwcap.h
> +++ b/arch/riscv/include/asm/hwcap.h
> @@ -82,6 +82,7 @@
>  #define RISCV_ISA_EXT_ZACAS		73
>  #define RISCV_ISA_EXT_XANDESPMU		74
>  #define RISCV_ISA_EXT_ZABHA		75
> +#define RISCV_ISA_EXT_ZICCRSE		76
>  
>  #define RISCV_ISA_EXT_XLINUXENVCFG	127
>  
> diff --git a/arch/riscv/kernel/cpufeature.c b/arch/riscv/kernel/cpufeature.c
> index c125d82c894b..93d8cc7e232c 100644
> --- a/arch/riscv/kernel/cpufeature.c
> +++ b/arch/riscv/kernel/cpufeature.c
> @@ -306,6 +306,7 @@ const struct riscv_isa_ext_data riscv_isa_ext[] = {
>  	__RISCV_ISA_EXT_DATA(svnapot, RISCV_ISA_EXT_SVNAPOT),
>  	__RISCV_ISA_EXT_DATA(svpbmt, RISCV_ISA_EXT_SVPBMT),
>  	__RISCV_ISA_EXT_DATA(xandespmu, RISCV_ISA_EXT_XANDESPMU),
> +	__RISCV_ISA_EXT_DATA(ziccrse, RISCV_ISA_EXT_ZICCRSE),

Please sort this entry per the comment at the beginning of the array.

Regards,
Samuel

>  };
>  
>  const size_t riscv_isa_ext_count = ARRAY_SIZE(riscv_isa_ext);

Re: [PATCH v3 09/11] riscv: Add ISA extension parsing for Ziccrse

Posted by Alexandre Ghiti 1 year, 5 months ago

On Fri, Jul 19, 2024 at 2:53 AM Samuel Holland
<samuel.holland@sifive.com> wrote:
>
> Hi Alex,
>
> On 2024-07-17 1:19 AM, Alexandre Ghiti wrote:
> > Add support to parse the Ziccrse string in the riscv,isa string.
> >
> > Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
> > ---
> >  arch/riscv/include/asm/hwcap.h | 1 +
> >  arch/riscv/kernel/cpufeature.c | 1 +
> >  2 files changed, 2 insertions(+)
> >
> > diff --git a/arch/riscv/include/asm/hwcap.h b/arch/riscv/include/asm/hwcap.h
> > index f71ddd2ca163..863b9b7d4a4f 100644
> > --- a/arch/riscv/include/asm/hwcap.h
> > +++ b/arch/riscv/include/asm/hwcap.h
> > @@ -82,6 +82,7 @@
> >  #define RISCV_ISA_EXT_ZACAS          73
> >  #define RISCV_ISA_EXT_XANDESPMU              74
> >  #define RISCV_ISA_EXT_ZABHA          75
> > +#define RISCV_ISA_EXT_ZICCRSE                76
> >
> >  #define RISCV_ISA_EXT_XLINUXENVCFG   127
> >
> > diff --git a/arch/riscv/kernel/cpufeature.c b/arch/riscv/kernel/cpufeature.c
> > index c125d82c894b..93d8cc7e232c 100644
> > --- a/arch/riscv/kernel/cpufeature.c
> > +++ b/arch/riscv/kernel/cpufeature.c
> > @@ -306,6 +306,7 @@ const struct riscv_isa_ext_data riscv_isa_ext[] = {
> >       __RISCV_ISA_EXT_DATA(svnapot, RISCV_ISA_EXT_SVNAPOT),
> >       __RISCV_ISA_EXT_DATA(svpbmt, RISCV_ISA_EXT_SVPBMT),
> >       __RISCV_ISA_EXT_DATA(xandespmu, RISCV_ISA_EXT_XANDESPMU),
> > +     __RISCV_ISA_EXT_DATA(ziccrse, RISCV_ISA_EXT_ZICCRSE),
>
> Please sort this entry per the comment at the beginning of the array.

Done, thanks

Alex

>
> Regards,
> Samuel
>
> >  };
> >
> >  const size_t riscv_isa_ext_count = ARRAY_SIZE(riscv_isa_ext);
>