* [Buildroot] [PATCH] configs/aspeed_ast2600evb: Set BR2_ARM_FPU_VFPV4D16
@ 2022-09-25 13:22 Cédric Le Goater
2022-09-25 13:26 ` Cédric Le Goater
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: Cédric Le Goater @ 2022-09-25 13:22 UTC (permalink / raw)
To: buildroot; +Cc: Joel Stanley, Cédric Le Goater
The features of the Cortex A7 CPU on the Aspeed AST2600 A3 SoC are :
half thumb fastmult vfp edsp vfpv3 vfpv3d16 tls vfpv4 idiva idivt lpae evtstrm
the vfpv3d16 feature bit is common to both vfpv3 and vfpv4.
Drop BR2_ARM_FPU_VFPV4 which activates the use of vpfd32 (and breaks
user space). Set BR2_ARM_FPU_VFPV4D16 instead.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
configs/aspeed_ast2600evb_defconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/configs/aspeed_ast2600evb_defconfig b/configs/aspeed_ast2600evb_defconfig
index cd058ad0ac28..04239566c838 100644
--- a/configs/aspeed_ast2600evb_defconfig
+++ b/configs/aspeed_ast2600evb_defconfig
@@ -1,7 +1,7 @@
# Architecture
BR2_arm=y
BR2_cortex_a7=y
-BR2_ARM_FPU_VFPV4=y
+BR2_ARM_FPU_VFPV4D16=y
# System
BR2_TARGET_GENERIC_HOSTNAME="aspeed-evb"
--
2.37.3
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^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [Buildroot] [PATCH] configs/aspeed_ast2600evb: Set BR2_ARM_FPU_VFPV4D16
2022-09-25 13:22 [Buildroot] [PATCH] configs/aspeed_ast2600evb: Set BR2_ARM_FPU_VFPV4D16 Cédric Le Goater
@ 2022-09-25 13:26 ` Cédric Le Goater
2022-09-26 12:03 ` Thomas Petazzoni
2022-10-12 15:41 ` Peter Korsgaard
2 siblings, 0 replies; 4+ messages in thread
From: Cédric Le Goater @ 2022-09-25 13:26 UTC (permalink / raw)
To: buildroot; +Cc: Joel Stanley
On 9/25/22 15:22, Cédric Le Goater wrote:
> The features of the Cortex A7 CPU on the Aspeed AST2600 A3 SoC are :
>
> half thumb fastmult vfp edsp vfpv3 vfpv3d16 tls vfpv4 idiva idivt lpae evtstrm
>
> the vfpv3d16 feature bit is common to both vfpv3 and vfpv4.
>
> Drop BR2_ARM_FPU_VFPV4 which activates the use of vpfd32 (and breaks
> user space). Set BR2_ARM_FPU_VFPV4D16 instead.
>
> Signed-off-by: Cédric Le Goater <clg@kaod.org>
> ---
> configs/aspeed_ast2600evb_defconfig | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
This patch is a possible candidate for 2022.08.x.
Thanks,
C.
>
> diff --git a/configs/aspeed_ast2600evb_defconfig b/configs/aspeed_ast2600evb_defconfig
> index cd058ad0ac28..04239566c838 100644
> --- a/configs/aspeed_ast2600evb_defconfig
> +++ b/configs/aspeed_ast2600evb_defconfig
> @@ -1,7 +1,7 @@
> # Architecture
> BR2_arm=y
> BR2_cortex_a7=y
> -BR2_ARM_FPU_VFPV4=y
> +BR2_ARM_FPU_VFPV4D16=y
>
> # System
> BR2_TARGET_GENERIC_HOSTNAME="aspeed-evb"
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^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [Buildroot] [PATCH] configs/aspeed_ast2600evb: Set BR2_ARM_FPU_VFPV4D16
2022-09-25 13:22 [Buildroot] [PATCH] configs/aspeed_ast2600evb: Set BR2_ARM_FPU_VFPV4D16 Cédric Le Goater
2022-09-25 13:26 ` Cédric Le Goater
@ 2022-09-26 12:03 ` Thomas Petazzoni
2022-10-12 15:41 ` Peter Korsgaard
2 siblings, 0 replies; 4+ messages in thread
From: Thomas Petazzoni @ 2022-09-26 12:03 UTC (permalink / raw)
To: Cédric Le Goater; +Cc: Joel Stanley, buildroot
On Sun, 25 Sep 2022 15:22:18 +0200
Cédric Le Goater <clg@kaod.org> wrote:
> The features of the Cortex A7 CPU on the Aspeed AST2600 A3 SoC are :
>
> half thumb fastmult vfp edsp vfpv3 vfpv3d16 tls vfpv4 idiva idivt lpae evtstrm
>
> the vfpv3d16 feature bit is common to both vfpv3 and vfpv4.
>
> Drop BR2_ARM_FPU_VFPV4 which activates the use of vpfd32 (and breaks
> user space). Set BR2_ARM_FPU_VFPV4D16 instead.
>
> Signed-off-by: Cédric Le Goater <clg@kaod.org>
> ---
> configs/aspeed_ast2600evb_defconfig | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Applied to master, thanks.
Thomas
--
Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
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^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [Buildroot] [PATCH] configs/aspeed_ast2600evb: Set BR2_ARM_FPU_VFPV4D16
2022-09-25 13:22 [Buildroot] [PATCH] configs/aspeed_ast2600evb: Set BR2_ARM_FPU_VFPV4D16 Cédric Le Goater
2022-09-25 13:26 ` Cédric Le Goater
2022-09-26 12:03 ` Thomas Petazzoni
@ 2022-10-12 15:41 ` Peter Korsgaard
2 siblings, 0 replies; 4+ messages in thread
From: Peter Korsgaard @ 2022-10-12 15:41 UTC (permalink / raw)
To: Cédric Le Goater; +Cc: Joel Stanley, buildroot
>>>>> "Cédric" == Cédric Le Goater <clg@kaod.org> writes:
> The features of the Cortex A7 CPU on the Aspeed AST2600 A3 SoC are :
> half thumb fastmult vfp edsp vfpv3 vfpv3d16 tls vfpv4 idiva idivt lpae evtstrm
> the vfpv3d16 feature bit is common to both vfpv3 and vfpv4.
> Drop BR2_ARM_FPU_VFPV4 which activates the use of vpfd32 (and breaks
> user space). Set BR2_ARM_FPU_VFPV4D16 instead.
> Signed-off-by: Cédric Le Goater <clg@kaod.org>
Committed to 2022.08.x, thanks.
--
Bye, Peter Korsgaard
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2022-09-25 13:22 [Buildroot] [PATCH] configs/aspeed_ast2600evb: Set BR2_ARM_FPU_VFPV4D16 Cédric Le Goater
2022-09-25 13:26 ` Cédric Le Goater
2022-09-26 12:03 ` Thomas Petazzoni
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