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authorGabe Black <gabeblack@google.com>2019-11-25 03:00:59 -0800
committerGabe Black <gabeblack@google.com>2020-01-07 03:14:23 +0000
commit0b52c24da66fd614e04ac1555470ccd68bfbe49d (patch)
treed663c28d077039ee2d1e6867cc5f9b5455d514f8 /src/arch
parent46117ecdc9eedbf060f32b9e7fb53f509245332d (diff)
downloadgem5-0b52c24da66fd614e04ac1555470ccd68bfbe49d.tar.xz
arch,sim: Stop decoding the pseudo inst subfunc value.
This isn't used by anything any more. The func field is left in place to ensure compatability, but there's no reason to decode a value nobody is going to use. Jira Issue: https://gem5.atlassian.net/browse/GEM5-187 Change-Id: I85fcd0e4a362551c29af6bff350d99af86050415 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/23179 Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Maintainer: Gabe Black <gabeblack@google.com>
Diffstat (limited to 'src/arch')
-rw-r--r--src/arch/arm/kvm/arm_cpu.cc3
-rw-r--r--src/arch/generic/mmapped_ipr.cc3
2 files changed, 2 insertions, 4 deletions
diff --git a/src/arch/arm/kvm/arm_cpu.cc b/src/arch/arm/kvm/arm_cpu.cc
index 0a77ee0d6..80576a25a 100644
--- a/src/arch/arm/kvm/arm_cpu.cc
+++ b/src/arch/arm/kvm/arm_cpu.cc
@@ -318,11 +318,10 @@ ArmKvmCPU::onKvmExitHypercall()
ThreadContext *tc(getContext(0));
const uint32_t reg_ip(tc->readIntRegFlat(INTREG_R12));
const uint8_t func((reg_ip >> 8) & 0xFF);
- const uint8_t subfunc(reg_ip & 0xFF);
DPRINTF(Kvm, "KVM Hypercall: %#x/%#x\n", func, subfunc);
const uint64_t ret =
- PseudoInst::pseudoInst<PseudoInstABI>(getContext(0), func, subfunc);
+ PseudoInst::pseudoInst<PseudoInstABI>(getContext(0), func);
// Just set the return value using the KVM API instead of messing
// with the context. We could have used the context, but that
diff --git a/src/arch/generic/mmapped_ipr.cc b/src/arch/generic/mmapped_ipr.cc
index 8bdd18016..754ee026b 100644
--- a/src/arch/generic/mmapped_ipr.cc
+++ b/src/arch/generic/mmapped_ipr.cc
@@ -43,11 +43,10 @@ handlePseudoInst(ThreadContext *xc, Packet *pkt)
{
const Addr offset(pkt->getAddr() & IPR_IN_CLASS_MASK);
const uint8_t func((offset >> 8) & 0xFF);
- const uint8_t subfunc(offset & 0xFF);
uint64_t ret;
assert((offset >> 16) == 0);
- ret = PseudoInst::pseudoInst<PseudoInstABI>(xc, func, subfunc);
+ ret = PseudoInst::pseudoInst<PseudoInstABI>(xc, func);
if (pkt->isRead())
pkt->set(ret, TheISA::GuestByteOrder);
}