From: Wei Chen <Wei.Chen@xxxxxxx>
Add the Arm64 entry for menuconfig. As different silicon vendors may
have different 64-bit Armv8 SoCs. If we want to add them to Config,
it will be a large list. So we only provide Arm's cortex A53~A75 CPUs
for "Processor Optimization"
If we use MARCH_ as the prefix for Arm64 CPUs as x86, when we select
"generic", the MARCH_GENERIC will conflict with x86's MARCH_GENERIC.
So, we use MARCH_ARM64_ for Arm64 as the prefix.
Current supported Arm64 CPU models:
native, generic, cortex-a53, cortex-a57, cortex-a72, cortex-a73,
cortex-a55 and cortex-a75.
Signed-off-by: Wei Chen <Wei.Chen@xxxxxxx>
---
Config.uk | 2 +-
arch/Arch.uk | 2 ++
arch/Config.uk | 6 +++++
arch/arm/arm64/Config.uk | 48 ++++++++++++++++++++++++++++++++++++++++
4 files changed, 57 insertions(+), 1 deletion(-)
create mode 100644 arch/arm/arm64/Config.uk
diff --git a/Config.uk b/Config.uk
index 1bca2b0..158f096 100644
--- a/Config.uk
+++ b/Config.uk
@@ -65,7 +65,7 @@ config OPTIMIZE_SIZE
endchoice
comment "Hint: Specify a CPU type to get most benefits from performance optimization"
- depends on OPTIMIZE_PERF && MARCH_X86_64_GENERIC
+ depends on OPTIMIZE_PERF && (MARCH_X86_64_GENERIC ||
MARCH_ARM64_GENERIC)
config OPTIMIZE_DEADELIM
bool "Drop unused functions and data"
diff --git a/arch/Arch.uk b/arch/Arch.uk
index f11308b..a8b3ca2 100644
--- a/arch/Arch.uk
+++ b/arch/Arch.uk
@@ -1,6 +1,8 @@
# Selects architecture according to .config
ifeq ($(CONFIG_ARCH_X86_64),y)
CONFIG_UK_ARCH := x86_64
+else ifeq ($(CONFIG_ARCH_ARM_64),y)
+CONFIG_UK_ARCH := arm64
else ifeq ($(CONFIG_ARCH_ARM_32),y)
CONFIG_UK_ARCH := arm
endif
diff --git a/arch/Config.uk b/arch/Config.uk
index 9236273..119903d 100644
--- a/arch/Config.uk
+++ b/arch/Config.uk
@@ -1,12 +1,15 @@
choice
prompt "Architecture"
default ARCH_ARM_32 if (UK_ARCH = "arm")
+ default ARCH_ARM_64 if (UK_ARCH = "arm64")
default ARCH_X86_64
help
Select the target CPU architecture.
config ARCH_X86_64
bool "x86 compatible (64 bits)"
+config ARCH_ARM_64
+ bool "Armv8 compatible (64 bits)"
config ARCH_ARM_32
bool "ARMv7 compatible (32 bits)"
@@ -18,3 +21,6 @@ endif
if (ARCH_ARM_32)
source "arch/arm/arm/Config.uk"
endif
+if (ARCH_ARM_64)
+ source "arch/arm/arm64/Config.uk"
+endif
diff --git a/arch/arm/arm64/Config.uk b/arch/arm/arm64/Config.uk
new file mode 100644
index 0000000..7797516
--- /dev/null
+++ b/arch/arm/arm64/Config.uk
@@ -0,0 +1,48 @@
+choice
+ prompt "Processor Optimization"
+ default MARCH_ARM64_GENERIC
+ help
+ Optimize the code for selected target processor
+
+config MARCH_ARM64_NATIVE
+ bool "Auto-detect host CPU"
+ help
+ Optimize compilation to host CPU. Please note that this
+ option will fail in case of cross-compilation
+
+config MARCH_ARM64_GENERIC
+ bool "Generic Armv8 CPU"
+ help
+ Compile for Generic Armv8 compatible CPUs
+
+config MARCH_ARM64_CORTEXA53
+ bool "Generic Armv8 Cortex A53"
+ help
+ Compile for Armv8 Cortex-A53 (and compatible) CPUs
+
+config MARCH_ARM64_CORTEXA57
+ bool "Generic Armv8 Cortex A57"
+ help
+ Compile for Armv8 Cortex-A57 (and compatible) CPUs
+
+config MARCH_ARM64_CORTEXA72
+ bool "Generic Armv8 Cortex A72"
+ help
+ Compile for Armv8 Cortex-A72 (and compatible) CPUs
+
+config MARCH_ARM64_CORTEXA73
+ bool "Generic Armv8 Cortex A73"
+ help
+ Compile for Armv8 Cortex-A73 (and compatible) CPUs
+
+config MARCH_ARM64_CORTEXA55
+ bool "Generic Armv8.2 Cortex A55"
+ help
+ Compile for Armv8.2 Cortex-A55 (and compatible) CPUs
+
+config MARCH_ARM64_CORTEXA75
+ bool "Generic Armv8.2 Cortex A75"
+ help
+ Compile for Armv8.2 Cortex-A75 (and compatible) CPUs
+
+endchoice
