1*e3723e1fSApple OSS Distributions #include <darwintest.h> 2*e3723e1fSApple OSS Distributions #include <sys/sysctl.h> 3*e3723e1fSApple OSS Distributions #include "apple_generic_timer.h" 4*e3723e1fSApple OSS Distributions #include "test_utils.h" 5*e3723e1fSApple OSS Distributions 6*e3723e1fSApple OSS Distributions T_GLOBAL_META( 7*e3723e1fSApple OSS Distributions T_META_NAMESPACE("xnu.arm"), 8*e3723e1fSApple OSS Distributions T_META_RADAR_COMPONENT_NAME("xnu"), 9*e3723e1fSApple OSS Distributions T_META_RADAR_COMPONENT_VERSION("arm"), 10*e3723e1fSApple OSS Distributions T_META_ENABLED(TARGET_CPU_ARM64), 11*e3723e1fSApple OSS Distributions T_META_OWNER("xi_han"), 12*e3723e1fSApple OSS Distributions T_META_RUN_CONCURRENTLY(true), 13*e3723e1fSApple OSS Distributions XNU_T_META_SOC_SPECIFIC 14*e3723e1fSApple OSS Distributions ); 15*e3723e1fSApple OSS Distributions 16*e3723e1fSApple OSS Distributions #define AIDR_AGT (1ULL << 32) 17*e3723e1fSApple OSS Distributions T_DECL(apple_generic_timer, 18*e3723e1fSApple OSS Distributions "Test that CNTFRQ_EL0 reads the correct frequency") 19*e3723e1fSApple OSS Distributions { 20*e3723e1fSApple OSS Distributions uint64_t aidr; 21*e3723e1fSApple OSS Distributions size_t sysctl_size = sizeof(aidr); 22*e3723e1fSApple OSS Distributions sysctlbyname("machdep.cpu.sysreg_AIDR_EL1", &aidr, &sysctl_size, NULL, 0); 23*e3723e1fSApple OSS Distributions 24*e3723e1fSApple OSS Distributions const bool has_agt = aidr & AIDR_AGT; 25*e3723e1fSApple OSS Distributions 26*e3723e1fSApple OSS Distributions /* When AIDR_AGT is set, expect 1 GHz; otherwise expect 24 MHz. */ 27*e3723e1fSApple OSS Distributions agt_test_helper(has_agt); 28*e3723e1fSApple OSS Distributions } 29