haraldwolff/qemu-patch-raspberry4
1
0
Fork 0
Code Issues Pull requests Packages Projects Releases Wiki Activity

arm: Do not define TLBTR in PMSA systems

Browse source 
If doing a PMSA (MPU) system do not define the VMSA specific TLBTR CP.
The def is done separately from VMSA registers group as it is affected
by both the OMAP/STRONGARM RW errata and the MIDR backgrounding.

Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: b03fea3840207edf633f5c9189400c3dd6a28d14.1434066412.git.peter.crosthwaite@xilinx.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Crosthwaite 2015-06-15 18:06:10 +01:00 committed by Peter Maydell
parent 62b44f059a
commit 8085ce63c5
1 changed files with 10 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

13
target-arm/helper.c
View file

@ -3448,11 +3448,14 @@ void register_cp_regs_for_features(ARMCPU *cpu)
{ .name = "TCMTR",
.cp = 15, .crn = 0, .crm = 0, .opc1 = 0, .opc2 = 2,
.access = PL1_R, .type = ARM_CP_CONST, .resetvalue = 0 },
{ .name = "TLBTR",
.cp = 15, .crn = 0, .crm = 0, .opc1 = 0, .opc2 = 3,
.access = PL1_R, .type = ARM_CP_CONST, .resetvalue = 0 },
REGINFO_SENTINEL
};
/* TLBTR is specific to VMSA */
ARMCPRegInfo id_tlbtr_reginfo = {
.name = "TLBTR",
.cp = 15, .crn = 0, .crm = 0, .opc1 = 0, .opc2 = 3,
.access = PL1_R, .type = ARM_CP_CONST, .resetvalue = 0,
};
ARMCPRegInfo crn0_wi_reginfo = {
.name = "CRN0_WI", .cp = 15, .crn = 0, .crm = CP_ANY,
.opc1 = CP_ANY, .opc2 = CP_ANY, .access = PL1_W,
@ -3474,6 +3477,7 @@ void register_cp_regs_for_features(ARMCPU *cpu)
for (r = id_cp_reginfo; r->type != ARM_CP_SENTINEL; r++) {
r->access = PL1_RW;
}
id_tlbtr_reginfo.access = PL1_RW;
}
if (arm_feature(env, ARM_FEATURE_V8)) {
define_arm_cp_regs(cpu, id_v8_midr_cp_reginfo);
@ -3481,6 +3485,9 @@ void register_cp_regs_for_features(ARMCPU *cpu)
define_arm_cp_regs(cpu, id_pre_v8_midr_cp_reginfo);
}
define_arm_cp_regs(cpu, id_cp_reginfo);
if (!arm_feature(env, ARM_FEATURE_MPU)) {
define_one_arm_cp_reg(cpu, &id_tlbtr_reginfo);
}
}
if (arm_feature(env, ARM_FEATURE_MPIDR)) {