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charset="utf-8" This is in preparation for enabling counters other than PMCCNTR Signed-off-by: Aaron Lindsay Reviewed-by: Peter Maydell --- target/arm/helper.c | 24 +++++++++++++++--------- 1 file changed, 15 insertions(+), 9 deletions(-) diff --git a/target/arm/helper.c b/target/arm/helper.c index 6480b80..5d5c738 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -52,11 +52,6 @@ typedef struct V8M_SAttributes { static void v8m_security_lookup(CPUARMState *env, uint32_t address, MMUAccessType access_type, ARMMMUIdx mmu_i= dx, V8M_SAttributes *sattrs); - -/* Definitions for the PMCCNTR and PMCR registers */ -#define PMCRD 0x8 -#define PMCRC 0x4 -#define PMCRE 0x1 #endif =20 static int vfp_gdb_get_reg(CPUARMState *env, uint8_t *buf, int reg) @@ -906,6 +901,17 @@ static const ARMCPRegInfo v6_cp_reginfo[] =3D { REGINFO_SENTINEL }; =20 +/* Definitions for the PMU registers */ +#define PMCRN_MASK 0xf800 +#define PMCRN_SHIFT 11 +#define PMCRD 0x8 +#define PMCRC 0x4 +#define PMCRE 0x1 + +#define PMU_NUM_COUNTERS(env) ((env->cp15.c9_pmcr & PMCRN_MASK) >> PMCRN_S= HIFT) +/* Bits allowed to be set/cleared for PMCNTEN* and PMINTEN* */ +#define PMU_COUNTER_MASK(env) ((1 << 31) | ((1 << PMU_NUM_COUNTERS(env)) -= 1)) + static CPAccessResult pmreg_access(CPUARMState *env, const ARMCPRegInfo *r= i, bool isread) { @@ -1124,14 +1130,14 @@ static void pmccfiltr_write(CPUARMState *env, const= ARMCPRegInfo *ri, static void pmcntenset_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) { - value &=3D (1 << 31); + value &=3D PMU_COUNTER_MASK(env); env->cp15.c9_pmcnten |=3D value; } =20 static void pmcntenclr_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) { - value &=3D (1 << 31); + value &=3D PMU_COUNTER_MASK(env); env->cp15.c9_pmcnten &=3D ~value; } =20 @@ -1179,14 +1185,14 @@ static void pmintenset_write(CPUARMState *env, cons= t ARMCPRegInfo *ri, uint64_t value) { /* We have no event counters so only the C bit can be changed */ - value &=3D (1 << 31); + value &=3D PMU_COUNTER_MASK(env); env->cp15.c9_pminten |=3D value; } =20 static void pmintenclr_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) { - value &=3D (1 << 31); + value &=3D PMU_COUNTER_MASK(env); env->cp15.c9_pminten &=3D ~value; } =20 --=20 Qualcomm Datacenter Technologies as an affiliate of Qualcomm Technologies, = Inc. Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.