From: Vineet Gupta <Vineet.Gupta1@synopsys.com>
To: buildroot@busybox.net
Subject: [Buildroot] [PATCH 1/4] ARC: Add support for generic HS48 processor
Date: Fri, 15 Jan 2021 12:03:16 -0800 [thread overview]
Message-ID: <20210115200319.4139041-2-vgupta@synopsys.com> (raw)
In-Reply-To: <20210115200319.4139041-1-vgupta@synopsys.com>
For the HS48 processor, BR currently builds with -mcpu=hs4x_rel31 which
generates suboptimal code as it inhibits delay slot and back-back ST and so on.
Enable a new variant to build with -mcpu=hs4x for normal codegen.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
arch/Config.in.arc | 16 +++++++++++-----
1 file changed, 11 insertions(+), 5 deletions(-)
diff --git a/arch/Config.in.arc b/arch/Config.in.arc
index fdfafda31c72..259d6f3ab8b9 100644
--- a/arch/Config.in.arc
+++ b/arch/Config.in.arc
@@ -39,9 +39,14 @@ config BR2_archs38_full
config BR2_archs4x_rel31
bool "ARC HS48 rel 31"
+ help
+ Build for HS48 release 3.1
+
+config BR2_archs4x
+ bool "ARC HS48"
help
Latest release of HS48 processor
- - Dual- and quad multiply and MC oprations
+ - Dual and Quad multiply and MAC operations
- Double-precision FPU
endchoice
@@ -49,7 +54,7 @@ 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_64mpy || BR2_archs38_full || BR2_archs4x_rel31
+ default y if BR2_arc770d || BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31 || BR2_archs4x
config BR2_ARCH
default "arc" if BR2_arcle
@@ -70,10 +75,11 @@ config BR2_GCC_TARGET_CPU
default "hs38" if BR2_archs38_64mpy
default "hs38_linux" if BR2_archs38_full
default "hs4x_rel31" if BR2_archs4x_rel31
+ default "hs4x" if BR2_archs4x
config BR2_READELF_ARCH_NAME
default "ARCompact" if BR2_arc750d || BR2_arc770d
- default "ARCv2" if BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31
+ default "ARCv2" if BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31 || BR2_archs4x
choice
prompt "MMU Page Size"
@@ -93,7 +99,7 @@ choice
config BR2_ARC_PAGE_SIZE_4K
bool "4KB"
- depends on BR2_arc770d || BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31
+ depends on BR2_arc770d || BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31 || BR2_archs4x
config BR2_ARC_PAGE_SIZE_8K
bool "8KB"
@@ -103,7 +109,7 @@ config BR2_ARC_PAGE_SIZE_8K
config BR2_ARC_PAGE_SIZE_16K
bool "16KB"
- depends on BR2_arc770d || BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31
+ depends on BR2_arc770d || BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31 || BR2_archs4x
endchoice
--
2.25.1
WARNING: multiple messages have this Message-ID (diff)
From: Vineet Gupta <Vineet.Gupta1@synopsys.com>
To: buildroot@busybox.net
Cc: Evgeniy.Didin@synopsys.com, linux-snps-arc@lists.infradead.org,
Vineet Gupta <Vineet.Gupta1@synopsys.com>,
Alexey.Brodkin@synopsys.com
Subject: [PATCH 1/4] ARC: Add support for generic HS48 processor
Date: Fri, 15 Jan 2021 12:03:16 -0800 [thread overview]
Message-ID: <20210115200319.4139041-2-vgupta@synopsys.com> (raw)
In-Reply-To: <20210115200319.4139041-1-vgupta@synopsys.com>
For the HS48 processor, BR currently builds with -mcpu=hs4x_rel31 which
generates suboptimal code as it inhibits delay slot and back-back ST and so on.
Enable a new variant to build with -mcpu=hs4x for normal codegen.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
arch/Config.in.arc | 16 +++++++++++-----
1 file changed, 11 insertions(+), 5 deletions(-)
diff --git a/arch/Config.in.arc b/arch/Config.in.arc
index fdfafda31c72..259d6f3ab8b9 100644
--- a/arch/Config.in.arc
+++ b/arch/Config.in.arc
@@ -39,9 +39,14 @@ config BR2_archs38_full
config BR2_archs4x_rel31
bool "ARC HS48 rel 31"
+ help
+ Build for HS48 release 3.1
+
+config BR2_archs4x
+ bool "ARC HS48"
help
Latest release of HS48 processor
- - Dual- and quad multiply and MC oprations
+ - Dual and Quad multiply and MAC operations
- Double-precision FPU
endchoice
@@ -49,7 +54,7 @@ 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_64mpy || BR2_archs38_full || BR2_archs4x_rel31
+ default y if BR2_arc770d || BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31 || BR2_archs4x
config BR2_ARCH
default "arc" if BR2_arcle
@@ -70,10 +75,11 @@ config BR2_GCC_TARGET_CPU
default "hs38" if BR2_archs38_64mpy
default "hs38_linux" if BR2_archs38_full
default "hs4x_rel31" if BR2_archs4x_rel31
+ default "hs4x" if BR2_archs4x
config BR2_READELF_ARCH_NAME
default "ARCompact" if BR2_arc750d || BR2_arc770d
- default "ARCv2" if BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31
+ default "ARCv2" if BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31 || BR2_archs4x
choice
prompt "MMU Page Size"
@@ -93,7 +99,7 @@ choice
config BR2_ARC_PAGE_SIZE_4K
bool "4KB"
- depends on BR2_arc770d || BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31
+ depends on BR2_arc770d || BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31 || BR2_archs4x
config BR2_ARC_PAGE_SIZE_8K
bool "8KB"
@@ -103,7 +109,7 @@ config BR2_ARC_PAGE_SIZE_8K
config BR2_ARC_PAGE_SIZE_16K
bool "16KB"
- depends on BR2_arc770d || BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31
+ depends on BR2_arc770d || BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31 || BR2_archs4x
endchoice
--
2.25.1
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next prev parent reply other threads:[~2021-01-15 20:03 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-15 20:03 [Buildroot] [PATCH 0/4] ARC updates Vineet Gupta
2021-01-15 20:03 ` Vineet Gupta
2021-01-15 20:03 ` Vineet Gupta [this message]
2021-01-15 20:03 ` [PATCH 1/4] ARC: Add support for generic HS48 processor Vineet Gupta
2021-01-16 15:35 ` [Buildroot] " Yann E. MORIN
2021-01-16 15:35 ` Yann E. MORIN
2021-01-15 20:03 ` [Buildroot] [PATCH 2/4] configs/snps_archs38_hsdk_defconfig: refresh defconfig Vineet Gupta
2021-01-15 20:03 ` Vineet Gupta
2021-01-15 20:03 ` [Buildroot] [PATCH 3/4] configs/snps_archs38_hsdk_defconfig: switch to glibc hard-float Vineet Gupta
2021-01-15 20:03 ` Vineet Gupta
2021-01-16 15:37 ` [Buildroot] " Yann E. MORIN
2021-01-16 15:37 ` Yann E. MORIN
2021-01-15 20:03 ` [Buildroot] [PATCH 4/4] configs/snps_archs38_hsdk_defconfig: update for better out-of-box experience Vineet Gupta
2021-01-15 20:03 ` Vineet Gupta
2021-01-16 15:40 ` [Buildroot] " Yann E. MORIN
2021-01-16 15:40 ` Yann E. MORIN
2021-01-16 15:29 ` [Buildroot] [PATCH 0/4] ARC updates Yann E. MORIN
2021-01-16 15:29 ` Yann E. MORIN
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