Even if it looks like PPC is a dying breed,
add an altivec knob for PPC AltiVec/VMX/Velocity engine
tuning. Altivec is present in more modern designs.
Afaiu, Most designs that are >= Power ISA v.2.03
According to Wikipedia:
Motorola/Freescale
MPC7400
MPC7410
MPC7450
MPC7445/7455
MPC7447/7447A/7457
MPC7448
MPC8641/8641D
MPC8640/8640D
MPC8610
T2081/T2080
T4080/T4160/T4240
B4420/B4860
IBM
PowerPC 970
PowerPC 970FX
PowerPC 970MP
Xenon
Cell B.E.
PowerXCell 8i
POWER6/POWER6+
POWER7/POWER7+
POWER8
POWER9
Power10
P.A. Semi
PA6T
Signed-off-by: Christian Melki <[email protected]>
---
platforms/architecture.in | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/platforms/architecture.in b/platforms/architecture.in
index 10df8deb2..deab8470a 100644
--- a/platforms/architecture.in
+++ b/platforms/architecture.in
@@ -269,6 +269,18 @@ config ARCH_ARMV7_NEON
bool
default ARCH_ARM_NEON if ARCH_ARM
+#
+# PPC vector instructions
+#
+config ARCH_PPC_ALTIVEC
+ bool
+ prompt "AltiVec/VMX/Velocity Engine"
+ depends on ARCH_PPC
+ help
+ This enables optimizations corresponding to single precision
+ floating point SIMD instructions on PPC processors.
+ This is present on more modern CPUs.
+
#
# hardware / software floating point
#
--
2.34.1
