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authorAaron Lindsay <aaron@os.amperecomputing.com>2019-01-21 10:23:14 +0000
committerPeter Maydell <peter.maydell@linaro.org>2019-01-21 10:38:56 +0000
commit57a4a11b2b281bb548b419ca81bfafb214e4c77a (patch)
treeb5e07b8cc53a4b987034c9b646225b58f00b6904 /target/arm/cpu.c
parentcad8673744d0914587cd7380e70df11e8c4a0f50 (diff)
target/arm: Add array for supported PMU events, generate PMCEID[01]_EL0
This commit doesn't add any supported events, but provides the framework for adding them. We store the pm_event structs in a simple array, and provide the mapping from the event numbers to array indexes in the supported_event_map array. Because the value of PMCEID[01] depends upon which events are supported at runtime, generate it dynamically. Signed-off-by: Aaron Lindsay <alindsay@codeaurora.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20181211151945.29137-10-aaron@os.amperecomputing.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target/arm/cpu.c')
-rw-r--r--target/arm/cpu.c19
1 files changed, 12 insertions, 7 deletions
diff --git a/target/arm/cpu.c b/target/arm/cpu.c
index 317e10c895..7e1f3dd637 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -1037,10 +1037,19 @@ static void arm_cpu_realizefn(DeviceState *dev, Error **errp)
if (!cpu->has_pmu) {
unset_feature(env, ARM_FEATURE_PMU);
+ }
+ if (arm_feature(env, ARM_FEATURE_PMU)) {
+ cpu->pmceid0 = get_pmceid(&cpu->env, 0);
+ cpu->pmceid1 = get_pmceid(&cpu->env, 1);
+
+ if (!kvm_enabled()) {
+ arm_register_pre_el_change_hook(cpu, &pmu_pre_el_change, 0);
+ arm_register_el_change_hook(cpu, &pmu_post_el_change, 0);
+ }
+ } else {
cpu->id_aa64dfr0 &= ~0xf00;
- } else if (!kvm_enabled()) {
- arm_register_pre_el_change_hook(cpu, &pmu_pre_el_change, 0);
- arm_register_el_change_hook(cpu, &pmu_post_el_change, 0);
+ cpu->pmceid0 = 0;
+ cpu->pmceid1 = 0;
}
if (!arm_feature(env, ARM_FEATURE_EL2)) {
@@ -1685,8 +1694,6 @@ static void cortex_a7_initfn(Object *obj)
cpu->id_pfr0 = 0x00001131;
cpu->id_pfr1 = 0x00011011;
cpu->id_dfr0 = 0x02010555;
- cpu->pmceid0 = 0x00000000;
- cpu->pmceid1 = 0x00000000;
cpu->id_afr0 = 0x00000000;
cpu->id_mmfr0 = 0x10101105;
cpu->id_mmfr1 = 0x40000000;
@@ -1732,8 +1739,6 @@ static void cortex_a15_initfn(Object *obj)
cpu->id_pfr0 = 0x00001131;
cpu->id_pfr1 = 0x00011011;
cpu->id_dfr0 = 0x02010555;
- cpu->pmceid0 = 0x0000000;
- cpu->pmceid1 = 0x00000000;
cpu->id_afr0 = 0x00000000;
cpu->id_mmfr0 = 0x10201105;
cpu->id_mmfr1 = 0x20000000;