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

[Wei Chen <wei.chen@xxxxxxx>]

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
-- 
2.17.1


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