diff mbox

[v1,6/7] target-arm: Implement pmccfiltr_write function

Message ID 10bd87e6e7ac5e74bdec79f05349d0977e62f907.1403572003.git.alistair.francis@xilinx.com
State New
Headers show

Commit Message

Alistair Francis June 24, 2014, 1:12 a.m. UTC 
This is the function that is called when writing to the
PMCCFILTR_EL0 register

Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
---

 target-arm/helper.c |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)
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Patch

diff --git a/target-arm/helper.c b/target-arm/helper.c
index bbd4b23..3e0a9a1 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -624,6 +624,14 @@  static void pmccntr_write(CPUARMState *env, const ARMCPRegInfo *ri,
 }
 #endif
 
+static void pmccfiltr_write(CPUARMState *env, const ARMCPRegInfo *ri,
+                            uint64_t value)
+{
+    pmccntr_sync(env);
+    env->cp15.pmccfiltr_el0 = value & 0x7E000000;
+    pmccntr_sync(env);
+}
+
 static void pmcntenset_write(CPUARMState *env, const ARMCPRegInfo *ri,
                             uint64_t value)
 {
@@ -786,6 +794,7 @@  static const ARMCPRegInfo v7_cp_reginfo[] = {
 #endif
     { .name = "PMCCFILTR_EL0", .state = ARM_CP_STATE_AA64,
       .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 15, .opc2 = 7,
+      .writefn = pmccfiltr_write,
       .access = PL0_RW, .accessfn = pmreg_access,
       .state = ARM_CP_STATE_AA64,
       .resetvalue = 0,