* [PATCH v2 0/1] ARC updates/fixes
@ 2019-11-12 15:34 Vineet Gupta
2019-11-12 15:34 ` [PATCH v2 1/1] arch/config.in.arc: Introduce the ARC optimized hs38 config Vineet Gupta
0 siblings, 1 reply; 3+ messages in thread
From: Vineet Gupta @ 2019-11-12 15:34 UTC (permalink / raw)
To: buildroot; +Cc: Vineet Gupta, linux-snps-arc
Hi,
I have some fixes/updates from ongoing glibc work.
Please review/apply.
P.S. retaining the cover letter despite 1 patch to capture the revision
history of original multi-patch submission.
Chances since v1
- 1/3 reworked as suggested (details in patch itself)
- 2/3 dropped as it didn't seem to be adding too much value
- 3/3 dropped as it is accepted upstream
Thx,
-Vineet
Vineet Gupta (1):
arch/config.in.arc: Introduce the ARC optimized hs38 config
arch/Config.in.arc | 17 ++++++++++++-----
1 file changed, 12 insertions(+), 5 deletions(-)
--
2.20.1
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* [PATCH v2 1/1] arch/config.in.arc: Introduce the ARC optimized hs38 config
2019-11-12 15:34 [PATCH v2 0/1] ARC updates/fixes Vineet Gupta
@ 2019-11-12 15:34 ` Vineet Gupta
2019-11-12 20:52 ` [Buildroot] " Thomas Petazzoni
0 siblings, 1 reply; 3+ messages in thread
From: Vineet Gupta @ 2019-11-12 15:34 UTC (permalink / raw)
To: buildroot; +Cc: Vineet Gupta, linux-snps-arc
This corresponds to -mcu=hs38 with mpy-option=9 (64-bit multiplier)
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
Changes since v1
- Retained BR2_hs38 build semantics (dropped BR2_archs)
- Introduced BR2_hs38_64mpy for generating double multiply instructions
---
arch/Config.in.arc | 17 ++++++++++++-----
1 file changed, 12 insertions(+), 5 deletions(-)
diff --git a/arch/Config.in.arc b/arch/Config.in.arc
index c65bb01f1f4f..3f272bc2be00 100644
--- a/arch/Config.in.arc
+++ b/arch/Config.in.arc
@@ -15,9 +15,15 @@ config BR2_archs38
bool "ARC HS38"
help
Generic ARC HS capable of running Linux, i.e. with MMU,
- caches and multiplier. Also it corresponds to the default
+ caches and 32-bit multiplier. Also it corresponds to the default
configuration in older GNU toolchain versions.
+config BR2_archs38_64mpy
+ bool "ARC HS38 with 64-bit mpy"
+ help
+ Fully featured ARC HS capable of running Linux, i.e. with MMU,
+ caches and 64-bit multiplier.
+
If you're not sure which version of ARC HS core you build for
keep this one.
@@ -43,7 +49,7 @@ endchoice
# Choice of atomic instructions presence
config BR2_ARC_ATOMIC_EXT
bool "Atomic extension (LLOCK/SCOND instructions)"
- default y if BR2_arc770d || BR2_archs38 || BR2_archs38_full || BR2_archs4x_rel31
+ default y if BR2_arc770d || BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31
config BR2_ARCH
default "arc" if BR2_arcle
@@ -61,12 +67,13 @@ config BR2_GCC_TARGET_CPU
default "arc700" if BR2_arc750d
default "arc700" if BR2_arc770d
default "archs" if BR2_archs38
+ default "hs38" if BR2_archs38_64mpy
default "hs38_linux" if BR2_archs38_full
default "hs4x_rel31" if BR2_archs4x_rel31
config BR2_READELF_ARCH_NAME
default "ARCompact" if BR2_arc750d || BR2_arc770d
- default "ARCv2" if BR2_archs38 || BR2_archs38_full || BR2_archs4x_rel31
+ default "ARCv2" if BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31
choice
prompt "MMU Page Size"
@@ -86,7 +93,7 @@ choice
config BR2_ARC_PAGE_SIZE_4K
bool "4KB"
- depends on BR2_arc770d || BR2_archs38 || BR2_archs38_full || BR2_archs4x_rel31
+ depends on BR2_arc770d || BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31
config BR2_ARC_PAGE_SIZE_8K
bool "8KB"
@@ -96,7 +103,7 @@ config BR2_ARC_PAGE_SIZE_8K
config BR2_ARC_PAGE_SIZE_16K
bool "16KB"
- depends on BR2_arc770d || BR2_archs38 || BR2_archs38_full || BR2_archs4x_rel31
+ depends on BR2_arc770d || BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31
endchoice
--
2.20.1
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* Re: [Buildroot] [PATCH v2 1/1] arch/config.in.arc: Introduce the ARC optimized hs38 config
2019-11-12 15:34 ` [PATCH v2 1/1] arch/config.in.arc: Introduce the ARC optimized hs38 config Vineet Gupta
@ 2019-11-12 20:52 ` Thomas Petazzoni
0 siblings, 0 replies; 3+ messages in thread
From: Thomas Petazzoni @ 2019-11-12 20:52 UTC (permalink / raw)
To: Vineet Gupta; +Cc: buildroot, linux-snps-arc
On Tue, 12 Nov 2019 07:34:43 -0800
Vineet Gupta <Vineet.Gupta1@synopsys.com> wrote:
> This corresponds to -mcu=hs38 with mpy-option=9 (64-bit multiplier)
>
> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
> ---
> Changes since v1
> - Retained BR2_hs38 build semantics (dropped BR2_archs)
> - Introduced BR2_hs38_64mpy for generating double multiply instructions
> ---
> arch/Config.in.arc | 17 ++++++++++++-----
> 1 file changed, 12 insertions(+), 5 deletions(-)
Applied to next, thanks.
Thomas
--
Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
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2019-11-12 15:34 [PATCH v2 0/1] ARC updates/fixes Vineet Gupta
2019-11-12 15:34 ` [PATCH v2 1/1] arch/config.in.arc: Introduce the ARC optimized hs38 config Vineet Gupta
2019-11-12 20:52 ` [Buildroot] " Thomas Petazzoni
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