From 8dabce896aca604f7e47a826970434b8a33b7e9d Mon Sep 17 00:00:00 2001 From: Chuan Zhu Date: Wed, 17 Jan 2018 10:59:30 +0000 Subject: [PATCH] arch-arm: Fix masking in CPACR_EL1 Some bits in CPACR_EL1 are RES0 but not RAZ/WI. For instance, bit CPACR_EL1[31] is RES0 but should be made stateful, since it allows programing of CPACR.ASEDIS. Therefore the masking of CPACR_EL1 is removed. Change-Id: If1fa3fa1e06bc38495b8afce2c635f3ddf76ce32 Reviewed-by: Andreas Sandberg Reviewed-on: https://gem5-review.googlesource.com/10046 Maintainer: Andreas Sandberg --- src/arch/arm/isa.cc | 11 ----------- 1 file changed, 11 deletions(-) diff --git a/src/arch/arm/isa.cc b/src/arch/arm/isa.cc index 954375374..7f0e0f42b 100644 --- a/src/arch/arm/isa.cc +++ b/src/arch/arm/isa.cc @@ -754,17 +754,6 @@ ISA::setMiscReg(int misc_reg, const MiscReg &val, ThreadContext *tc) miscRegName[misc_reg], newVal); } break; - case MISCREG_CPACR_EL1: - { - const uint32_t ones = (uint32_t)(-1); - CPACR cpacrMask = 0; - cpacrMask.tta = ones; - cpacrMask.fpen = ones; - newVal &= cpacrMask; - DPRINTF(MiscRegs, "Writing misc reg %s: %#x\n", - miscRegName[misc_reg], newVal); - } - break; case MISCREG_CPTR_EL2: { const uint32_t ones = (uint32_t)(-1); -- 2.30.2