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| author | Aaron Lindsay | 2019-01-21 11:23:14 +0100 |
|---|---|---|
| committer | Peter Maydell | 2019-01-21 11:38:56 +0100 |
| commit | 57a4a11b2b281bb548b419ca81bfafb214e4c77a (patch) | |
| tree | b5e07b8cc53a4b987034c9b646225b58f00b6904 /target/arm/cpu.h | |
| parent | target/arm: Make PMCEID[01]_EL0 64 bit registers, add PMCEID[23] (diff) | |
| download | qemu-57a4a11b2b281bb548b419ca81bfafb214e4c77a.tar.gz qemu-57a4a11b2b281bb548b419ca81bfafb214e4c77a.tar.xz qemu-57a4a11b2b281bb548b419ca81bfafb214e4c77a.zip | |
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.h')
| -rw-r--r-- | target/arm/cpu.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/target/arm/cpu.h b/target/arm/cpu.h index dc86a70b99..562291048d 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -1008,6 +1008,16 @@ void pmu_op_finish(CPUARMState *env); void pmu_pre_el_change(ARMCPU *cpu, void *ignored); void pmu_post_el_change(ARMCPU *cpu, void *ignored); +/* + * get_pmceid + * @env: CPUARMState + * @which: which PMCEID register to return (0 or 1) + * + * Return the PMCEID[01]_EL0 register values corresponding to the counters + * which are supported given the current configuration + */ +uint64_t get_pmceid(CPUARMState *env, unsigned which); + /* SCTLR bit meanings. Several bits have been reused in newer * versions of the architecture; in that case we define constants * for both old and new bit meanings. Code which tests against those |