Re: [Minios-devel] [UNIKRAFT PATCHv5 10/46] arch/arm: Add more CPU models to processor optimization list

[Simon Kuenzer <simon.kuenzer@xxxxxxxxx>]

Reviewed-by: Simon Kuenzer <simon.kuenzer@xxxxxxxxx>

On 10.08.2018 09:08, Wei Chen wrote:
> From: Wei Chen <Wei.Chen@xxxxxxx>
>
> Current processor optimization list only support generic cortex-a7
> and one Allwin cortex-a7 SoC. In this patch, we add all armv7
> cortex-a series and two armv8 32-bit CPU to support list.
>
> As arm64 and x86_64, we also add auto-detect host CPU option for arm32,
> even it's not likely to be used on arm32 platforms.
>
> New supported armv7 cortex-a CPU models:
> armv7-a,native
> armv7-a,generic-armv7-a
> armv7-a,cortex-a8
> armv7-a,cortex-a9
> armv7-a,cortex-a5
> armv7-a,cortex-a15
> armv7-a,cortex-a7
> armv7-a,cortex-a12
> armv7-a,cortex-a17
> armv8-a,cortex-a32(full backward compatibility with Armv7)
> armv8-a,cortex-a35(full backward compatibility with Armv7)
>
> The generic-armv7-a would be our default option of armv7 processor.
>
> Signed-off-by: Wei Chen <Wei.Chen@xxxxxxx>
> ---
>   arch/arm/arm/Makefile.uk | 71 +++++++++++++++++++++++++++++++++++++---
>   1 file changed, 67 insertions(+), 4 deletions(-)
>
> diff --git a/arch/arm/arm/Makefile.uk b/arch/arm/arm/Makefile.uk
> index 38ea876..9aef849 100644
> --- a/arch/arm/arm/Makefile.uk
> +++ b/arch/arm/arm/Makefile.uk
> @@ -5,11 +5,18 @@ CFLAGS   += -marm -fms-extensions
>   CXXFLAGS += -D__ARM_32__
>   CXXFLAGS += -marm -fms-extensions
>   
> -# Set GCC flags for MARCH_ARM32_A20NEON. GCC supports -mcpu=cortex-a7 from 4.7
> -ifeq ($(CONFIG_MARCH_ARM32_A20NEON),y)
> +# Set GCC flags for MARCH_ARM32_GENERICV7. GCC supports -mtune=generic-armv7-a 
> from 4.7
> +ifeq ($(CONFIG_MARCH_ARM32_GENERICV7),y)
>   $(call error_if_gcc_version_lt,4,7)
> -CFLAGS-$(call gcc_version_ge,4,7)      += -mcpu=cortex-a7 -mtune=cortex-a7 
> -mfpu=vfpv4-d16 -mfpu=neon-vfpv4 -funsafe-math-optimizations
> -CXXFLAGS-$(call gcc_version_ge,4,7)    += -mcpu=cortex-a7 -mtune=cortex-a7 
> -mfpu=vfpv4-d16 -mfpu=neon-vfpv4 -funsafe-math-optimizations
> +CFLAGS-$(call gcc_version_ge,4,7)      += -march=armv7-a -mtune=generic-armv7-a
> +CXXFLAGS-$(call gcc_version_ge,4,7)    += -march=armv7-a -mtune=generic-armv7-a
> +endif
> +
> +# Set GCC flags for MARCH_ARM32_CORTEXA5. GCC supports -mcpu=cortex-a5 from 4.5
> +ifeq ($(CONFIG_MARCH_ARM32_CORTEXA5),y)
> +$(call error_if_gcc_version_lt,4,5)
> +CFLAGS-$(call gcc_version_ge,4,5)      += -mcpu=cortex-a5 -mtune=cortex-a5
> +CXXFLAGS-$(call gcc_version_ge,4,5)    += -mcpu=cortex-a5 -mtune=cortex-a5
>   endif
>   
>   # Set GCC flags for MARCH_ARM32_CORTEXA7. GCC supports -mcpu=cortex-a7 from 4.7
> @@ -19,6 +26,62 @@ CFLAGS-$(call gcc_version_ge,4,7)    += -mcpu=cortex-a7 
> -mtune=cortex-a7
>   CXXFLAGS-$(call gcc_version_ge,4,7)   += -mcpu=cortex-a7 -mtune=cortex-a7
>   endif
>   
> +# Set GCC flags for MARCH_ARM32_CORTEXA8. GCC supports -mcpu=cortex-a8 from 4.3
> +ifeq ($(CONFIG_MARCH_ARM32_CORTEXA8),y)
> +$(call error_if_gcc_version_lt,4,3)
> +CFLAGS-$(call gcc_version_ge,4,3)      += -mcpu=cortex-a8 -mtune=cortex-a8
> +CXXFLAGS-$(call gcc_version_ge,4,3)    += -mcpu=cortex-a8 -mtune=cortex-a8
> +endif
> +
> +# Set GCC flags for MARCH_ARM32_CORTEXA9. GCC supports -mcpu=cortex-a9 from 4.4
> +ifeq ($(CONFIG_MARCH_ARM32_CORTEXA9),y)
> +$(call error_if_gcc_version_lt,4,4)
> +CFLAGS-$(call gcc_version_ge,4,4)      += -mcpu=cortex-a9 -mtune=cortex-a9
> +CXXFLAGS-$(call gcc_version_ge,4,4)    += -mcpu=cortex-a9 -mtune=cortex-a9
> +endif
> +
> +# Set GCC flags for MARCH_ARM32_CORTEXA12. GCC supports -mcpu=cortex-a12 from 
> 4.9
> +ifeq ($(CONFIG_MARCH_ARM32_CORTEXA12),y)
> +$(call error_if_gcc_version_lt,4,9)
> +CFLAGS-$(call gcc_version_ge,4,9)      += -mcpu=cortex-a12 -mtune=cortex-a12
> +CXXFLAGS-$(call gcc_version_ge,4,9)    += -mcpu=cortex-a12 -mtune=cortex-a12
> +endif
> +
> +# Set GCC flags for MARCH_ARM32_CORTEXA15. GCC supports -mcpu=cortex-a15 from 
> 4.6
> +ifeq ($(CONFIG_MARCH_ARM32_CORTEXA15),y)
> +$(call error_if_gcc_version_lt,4,6)
> +CFLAGS-$(call gcc_version_ge,4,6)      += -mcpu=cortex-a15 -mtune=cortex-a15
> +CXXFLAGS-$(call gcc_version_ge,4,6)    += -mcpu=cortex-a15 -mtune=cortex-a15
> +endif
> +
> +# Set GCC flags for MARCH_ARM32_CORTEXA17. GCC supports -mcpu=cortex-a17 from 
> 6.1
> +ifeq ($(CONFIG_MARCH_ARM32_CORTEXA17),y)
> +$(call error_if_gcc_version_lt,6,1)
> +CFLAGS-$(call gcc_version_ge,6,1)      += -mcpu=cortex-a17 -mtune=cortex-a17
> +CXXFLAGS-$(call gcc_version_ge,6,1)    += -mcpu=cortex-a17 -mtune=cortex-a17
> +endif
> +
> +# Set GCC flags for MARCH_ARM32_CORTEXA32. GCC supports -mcpu=cortex-a32 from 
> 6.1
> +ifeq ($(CONFIG_MARCH_ARM32_CORTEXA32),y)
> +$(call error_if_gcc_version_lt,6,1)
> +CFLAGS-$(call gcc_version_ge,6,1)      += -mcpu=cortex-a32 -mtune=cortex-a32
> +CXXFLAGS-$(call gcc_version_ge,6,1)    += -mcpu=cortex-a32 -mtune=cortex-a32
> +endif
> +
> +# Set GCC flags for MARCH_ARM32_CORTEXA35. GCC supports -mcpu=cortex-a35 from 
> 6.1
> +ifeq ($(CONFIG_MARCH_ARM32_CORTEXA35),y)
> +$(call error_if_gcc_version_lt,6,1)
> +CFLAGS-$(call gcc_version_ge,6,1)      += -mcpu=cortex-a35 -mtune=cortex-a35
> +CXXFLAGS-$(call gcc_version_ge,6,1)    += -mcpu=cortex-a35 -mtune=cortex-a35
> +endif
> +
> +# Set GCC flags for MARCH_ARM32_A20NEON. GCC supports -mcpu=cortex-a7 from 4.7
> +ifeq ($(CONFIG_MARCH_ARM32_A20NEON),y)
> +$(call error_if_gcc_version_lt,4,7)
> +CFLAGS-$(call gcc_version_ge,4,7)      += -mcpu=cortex-a7 -mtune=cortex-a7 
> -mfpu=vfpv4-d16 -mfpu=neon-vfpv4 -funsafe-math-optimizations
> +CXXFLAGS-$(call gcc_version_ge,4,7)    += -mcpu=cortex-a7 -mtune=cortex-a7 
> -mfpu=vfpv4-d16 -mfpu=neon-vfpv4 -funsafe-math-optimizations
> +endif
> +
>   $(eval $(call addlib,libarmmath))
>   LIBARMMATH_SRCS-$(CONFIG_ARCH_ARM_32) += $(CONFIG_UK_BASE)/arch/arm/divsi3.S
>   LIBARMMATH_SRCS-$(CONFIG_ARCH_ARM_32) += $(CONFIG_UK_BASE)/arch/arm/ldivmod.S
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