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authorAlistair Francis <alistair.francis@xilinx.com>2014-08-29 15:00:29 +0100
committerPeter Maydell <peter.maydell@linaro.org>2014-08-29 15:00:29 +0100
commit87124fdea443322924be00eb79430a6243cf0747 (patch)
treeb6fb52400982f50390caa72501ccc9bad0278fb8 /target-arm/helper.c
parent8521466b391f92681d64eabfeeca17de9b03585d (diff)
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target-arm: Add arm_ccnt_enabled function
Include a helper function to determine if the CCNT counter is enabled. Signed-off-by: Alistair Francis <alistair.francis@xilinx.com> Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Message-id: e1a64f17a756e06c8bda8238ad4826d705049f7a.1409025949.git.peter.crosthwaite@xilinx.com [ PC changes * Remove EL based checks ] Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target-arm/helper.c')
-rw-r--r--target-arm/helper.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/target-arm/helper.c b/target-arm/helper.c
index 13507f7..e6c82ab 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -548,6 +548,18 @@ static CPAccessResult pmreg_access(CPUARMState *env, const ARMCPRegInfo *ri)
}
#ifndef CONFIG_USER_ONLY
+
+static inline bool arm_ccnt_enabled(CPUARMState *env)
+{
+ /* This does not support checking PMCCFILTR_EL0 register */
+
+ if (!(env->cp15.c9_pmcr & PMCRE)) {
+ return false;
+ }
+
+ return true;
+}
+
static void pmcr_write(CPUARMState *env, const ARMCPRegInfo *ri,
uint64_t value)
{