[v3] perf: arm_spe: Armv8.8 SPE features

[PATCH v3 01/10] arm64: sysreg: Add new PMSFCR_EL1 fields and PMSDSFR_EL1 register

Posted by James Clark 6 months, 2 weeks ago

Add new fields and register that are introduced for the features
FEAT_SPE_EFT (extended filtering) and FEAT_SPE_FDS (data source
filtering).

Tested-by: Leo Yan <leo.yan@arm.com>
Signed-off-by: James Clark <james.clark@linaro.org>
---
 arch/arm64/tools/sysreg | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/tools/sysreg b/arch/arm64/tools/sysreg
index 8a8cf6874298..2e897d8a4040 100644
--- a/arch/arm64/tools/sysreg
+++ b/arch/arm64/tools/sysreg
@@ -2859,11 +2859,20 @@ Field	0	RND
 EndSysreg
 
 Sysreg	PMSFCR_EL1	3	0	9	9	4
-Res0	63:19
+Res0	63:53
+Field	52	SIMDm
+Field	51	FPm
+Field	50	STm
+Field	49	LDm
+Field	48	Bm
+Res0	47:21
+Field	20	SIMD
+Field	19	FP
 Field	18	ST
 Field	17	LD
 Field	16	B
-Res0	15:4
+Res0	15:5
+Field	4	FDS
 Field	3	FnE
 Field	2	FL
 Field	1	FT

-- 
2.34.1

Re: [PATCH v3 01/10] arm64: sysreg: Add new PMSFCR_EL1 fields and PMSDSFR_EL1 register

Posted by Will Deacon 5 months, 1 week ago

On Thu, Jun 05, 2025 at 11:48:59AM +0100, James Clark wrote:
> Add new fields and register that are introduced for the features
> FEAT_SPE_EFT (extended filtering) and FEAT_SPE_FDS (data source
> filtering).
> 
> Tested-by: Leo Yan <leo.yan@arm.com>
> Signed-off-by: James Clark <james.clark@linaro.org>
> ---
>  arch/arm64/tools/sysreg | 13 +++++++++++--
>  1 file changed, 11 insertions(+), 2 deletions(-)

Acked-by: Will Deacon <will@kernel.org>

Will

Re: [PATCH v3 01/10] arm64: sysreg: Add new PMSFCR_EL1 fields and PMSDSFR_EL1 register

Posted by Anshuman Khandual 6 months, 1 week ago

On 05/06/25 4:18 PM, James Clark wrote:
> Add new fields and register that are introduced for the features
> FEAT_SPE_EFT (extended filtering) and FEAT_SPE_FDS (data source
> filtering).
> 
> Tested-by: Leo Yan <leo.yan@arm.com>
> Signed-off-by: James Clark <james.clark@linaro.org>
> ---
>  arch/arm64/tools/sysreg | 13 +++++++++++--
>  1 file changed, 11 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm64/tools/sysreg b/arch/arm64/tools/sysreg
> index 8a8cf6874298..2e897d8a4040 100644
> --- a/arch/arm64/tools/sysreg
> +++ b/arch/arm64/tools/sysreg
> @@ -2859,11 +2859,20 @@ Field	0	RND
>  EndSysreg
>  
>  Sysreg	PMSFCR_EL1	3	0	9	9	4
> -Res0	63:19
> +Res0	63:53
> +Field	52	SIMDm
> +Field	51	FPm
> +Field	50	STm
> +Field	49	LDm
> +Field	48	Bm
> +Res0	47:21
> +Field	20	SIMD
> +Field	19	FP
>  Field	18	ST
>  Field	17	LD
>  Field	16	B
> -Res0	15:4
> +Res0	15:5
> +Field	4	FDS
>  Field	3	FnE
>  Field	2	FL
>  Field	1	FT
> 

These register fields checks out against ARM ARM DDI 0487 (L.b)

Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>