Support Qualcomm Kryo 385 CPU variant.
Support Kryo 385 cpu variant which should be used for
Qualcomm Snapdragon 845.
Motivation:
kryo385 CPU *IS NOT* an Arm Cortex-A75.
Particular problem:
Cortex-A75 CPU must support optional ARMv8.2 dot product
feature; kryo385 CPU (Qualcomm Snapdragon 845) doesn't
support it.
Test: Builds when kryo385 is used as cpu variant.
Test: Pixel 3 boots to GUI with kryo385 as CPU variant
with this patch on AOSP 9.0.0 r16.
Bug: 119564566
Change-Id: I62ffb46b1977b48446c6c1ca1400b1b39f7a8457
diff --git a/cc/config/arm_device.go b/cc/config/arm_device.go
index d759125..29378c6 100644
--- a/cc/config/arm_device.go
+++ b/cc/config/arm_device.go
@@ -151,6 +151,15 @@
// better solution comes around. See Bug 27340895
"-D__ARM_FEATURE_LPAE=1",
},
+ "kryo385": []string{
+ // Use cortex-a53 because kryo385 is not supported in GCC/clang.
+ "-mcpu=cortex-a53",
+ // Fake an ARM compiler flag as these processors support LPAE which GCC/clang
+ // don't advertise.
+ // TODO This is a hack and we need to add it for each processor that supports LPAE until some
+ // better solution comes around. See Bug 27340895
+ "-D__ARM_FEATURE_LPAE=1",
+ },
}
)
@@ -180,6 +189,7 @@
"cortex-a76",
"krait",
"kryo",
+ "kryo385",
"exynos-m1",
"exynos-m2",
"denver")
@@ -242,7 +252,7 @@
"armv7-a": "${config.ArmClangArmv7ACflags}",
"armv7-a-neon": "${config.ArmClangArmv7ANeonCflags}",
"armv8-a": "${config.ArmClangArmv8ACflags}",
- "armv8-2a": "${config.ArmClangArmv82ACflags}",
+ "armv8-2a": "${config.ArmClangArmv82ACflags}",
}
armClangCpuVariantCflagsVar = map[string]string{
@@ -258,6 +268,7 @@
"cortex-a75": "${config.ArmClangCortexA55Cflags}",
"krait": "${config.ArmClangKraitCflags}",
"kryo": "${config.ArmClangKryoCflags}",
+ "kryo385": "${config.ArmClangCortexA53Cflags}",
"exynos-m1": "${config.ArmClangCortexA53Cflags}",
"exynos-m2": "${config.ArmClangCortexA53Cflags}",
"denver": "${config.ArmClangCortexA15Cflags}",