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target-arm: Add arm_ccnt_enabled function

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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>
This commit is contained in:
Alistair Francis 2014-08-29 15:00:29 +01:00 committed by Peter Maydell
parent 8521466b39
commit 87124fdea4
1 changed files with 12 additions and 0 deletions
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12
target-arm/helper.c
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@ -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)
{