From: Alistair Francis <alistair.fran...@xilinx.com>
Include a helper function to determine if the CCNT counter
is enabled.
Signed-off-by: Alistair Francis <alistair.fran...@xilinx.com>
[ PC changes
* Remove EL based checks
]
Signed-off-by: Peter Crosthwaite <peter.crosthwa...@xilinx.com>
---
Changed since v3
Remove checks based on EL.
Changed since v2 (PMM review):
Blank line for readability
Use switch instead of cascading ifs.
Use true and false.
Drop extraneous #endif #if
target-arm/helper.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
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)
{
--
2.1.0.1.g27b9230
