X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/de355530ae67247cbd0da700edb3a2a1dae884c2..5eebf7385fedb1517b66b53c28e5aa6bb0a2be50:/bsd/kern/kern_mib.c?ds=inline diff --git a/bsd/kern/kern_mib.c b/bsd/kern/kern_mib.c index d6c43effe..35b5ee7bf 100644 --- a/bsd/kern/kern_mib.c +++ b/bsd/kern/kern_mib.c @@ -71,6 +71,41 @@ #include #endif +#include /* XXX prune includes */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +extern vm_map_t bsd_pageable_map; + +#include +#include + +#include +#include + +#include +#include + + SYSCTL_NODE(, 0, sysctl, CTLFLAG_RW, 0, "Sysctl internal magic"); SYSCTL_NODE(, CTL_KERN, kern, CTLFLAG_RW, 0, @@ -90,3 +125,310 @@ SYSCTL_NODE(, CTL_MACHDEP, machdep, CTLFLAG_RW, 0, SYSCTL_NODE(, CTL_USER, user, CTLFLAG_RW, 0, "user-level"); +#define SYSCTL_RETURN(r, x) SYSCTL_OUT(r, &x, sizeof(x)) + +/****************************************************************************** + * hw.* MIB + */ + +#define CTLHW_RETQUAD (1 << 31) + +/* + * Supporting some variables requires us to do "real" work. We + * gather some of that here. + */ +static int +sysctl_hw_generic SYSCTL_HANDLER_ARGS +{ + char dummy[65]; + int epochTemp; + extern int vm_page_wire_count; + ml_cpu_info_t cpu_info; + int val, doquad; + long long qval; + + /* + * Test and mask off the 'return quad' flag. + * Note that only some things here support it. + */ + doquad = arg2 & CTLHW_RETQUAD; + arg2 &= ~CTLHW_RETQUAD; + + ml_cpu_get_info(&cpu_info); + + /* + * Handle various OIDs. + * + * OIDs that can return int or quad set val and qval and then break. + * Errors and int-only values return inline. + */ + switch (arg2) { + case HW_NCPU: + { + host_basic_info_data_t hinfo; + kern_return_t kret; + int count = HOST_BASIC_INFO_COUNT; +#define BSD_HOST 1 + + kret = host_info(BSD_HOST, HOST_BASIC_INFO, &hinfo, &count); + if (kret == KERN_SUCCESS) { + return(SYSCTL_RETURN(req, hinfo.max_cpus)); + } else { + return(EINVAL); + } + } + case HW_AVAILCPU: + { + host_basic_info_data_t hinfo; + kern_return_t kret; + int count = HOST_BASIC_INFO_COUNT; +#define BSD_HOST 1 + + kret = host_info(BSD_HOST, HOST_BASIC_INFO, &hinfo, &count); + if (kret == KERN_SUCCESS) { + return(SYSCTL_RETURN(req, hinfo.avail_cpus)); + } else { + return(EINVAL); + } + } + case HW_CACHELINE: + val = cpu_info.cache_line_size; + qval = (long long)val; + break; + case HW_L1ICACHESIZE: + val = cpu_info.l1_icache_size; + qval = (long long)val; + break; + case HW_L1DCACHESIZE: + val = cpu_info.l1_dcache_size; + qval = (long long)val; + break; + case HW_L2CACHESIZE: + if (cpu_info.l2_cache_size == 0xFFFFFFFF) + return(EINVAL); + val = cpu_info.l2_cache_size; + qval = (long long)val; + break; + case HW_L3CACHESIZE: + if (cpu_info.l3_cache_size == 0xFFFFFFFF) + return(EINVAL); + val = cpu_info.l3_cache_size; + qval = (long long)val; + break; + + /* + * Deprecated variables. We still support these for + * backwards compatibility purposes only. + */ + case HW_MACHINE: + bzero(dummy, sizeof(dummy)); + if(!PEGetMachineName(dummy,64)) + return(EINVAL); + dummy[64] = 0; + return(SYSCTL_OUT(req, dummy, strlen(dummy) + 1)); + case HW_MODEL: + bzero(dummy, sizeof(dummy)); + if(!PEGetModelName(dummy,64)) + return(EINVAL); + dummy[64] = 0; + return(SYSCTL_OUT(req, dummy, strlen(dummy) + 1)); + case HW_USERMEM: + { + int usermem = mem_size - vm_page_wire_count * page_size; + + return(SYSCTL_RETURN(req, usermem)); + } + case HW_EPOCH: + epochTemp = PEGetPlatformEpoch(); + if (epochTemp == -1) + return(EINVAL); + return(SYSCTL_RETURN(req, epochTemp)); + case HW_VECTORUNIT: + return(SYSCTL_RETURN(req, cpu_info.vector_unit)); + case HW_L2SETTINGS: + if (cpu_info.l2_cache_size == 0xFFFFFFFF) + return(EINVAL); + return(SYSCTL_RETURN(req, cpu_info.l2_settings)); + case HW_L3SETTINGS: + if (cpu_info.l3_cache_size == 0xFFFFFFFF) + return(EINVAL); + return(SYSCTL_RETURN(req, cpu_info.l3_settings)); + default: + return(ENOTSUP); + } + /* + * Callers may come to us with either int or quad buffers. + */ + if (doquad) { + return(SYSCTL_RETURN(req, qval)); + } + return(SYSCTL_RETURN(req, val)); +} + +/* + * hw.* MIB variables. + */ +SYSCTL_PROC (_hw, HW_NCPU, ncpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_NCPU, sysctl_hw_generic, "I", ""); +SYSCTL_PROC (_hw, HW_AVAILCPU, activecpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_AVAILCPU, sysctl_hw_generic, "I", ""); +SYSCTL_INT (_hw, HW_BYTEORDER, byteorder, CTLFLAG_RD | CTLFLAG_KERN, NULL, BYTE_ORDER, ""); +SYSCTL_INT (_hw, OID_AUTO, cputype, CTLFLAG_RD | CTLFLAG_KERN, &machine_slot[0].cpu_type, 0, ""); +SYSCTL_INT (_hw, OID_AUTO, cpusubtype, CTLFLAG_RD | CTLFLAG_KERN, &machine_slot[0].cpu_subtype, 0, ""); +SYSCTL_INT2QUAD(_hw, OID_AUTO, pagesize, CTLFLAG_RD | CTLFLAG_KERN, &page_size, ""); +SYSCTL_QUAD (_hw, OID_AUTO, busfrequency, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.bus_frequency_hz, ""); +SYSCTL_QUAD (_hw, OID_AUTO, busfrequency_min, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.bus_frequency_min_hz, ""); +SYSCTL_QUAD (_hw, OID_AUTO, busfrequency_max, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.bus_frequency_max_hz, ""); +SYSCTL_QUAD (_hw, OID_AUTO, cpufrequency, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.cpu_frequency_hz, ""); +SYSCTL_QUAD (_hw, OID_AUTO, cpufrequency_min, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.cpu_frequency_min_hz, ""); +SYSCTL_QUAD (_hw, OID_AUTO, cpufrequency_max, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.cpu_frequency_max_hz, ""); +SYSCTL_PROC (_hw, OID_AUTO, cachelinesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_CACHELINE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", ""); +SYSCTL_PROC (_hw, OID_AUTO, l1icachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_L1ICACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", ""); +SYSCTL_PROC (_hw, OID_AUTO, l1dcachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_L1DCACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", ""); +SYSCTL_PROC (_hw, OID_AUTO, l2cachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_L2CACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", ""); +SYSCTL_PROC (_hw, OID_AUTO, l3cachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_L3CACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", ""); +SYSCTL_INT2QUAD(_hw, OID_AUTO, tbfrequency, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.timebase_frequency_hz, ""); +SYSCTL_QUAD (_hw, HW_MEMSIZE, memsize, CTLFLAG_RD | CTLFLAG_KERN, &max_mem, ""); + +/* + * Optional features can register nodes below hw.optional. + * + * If the feature is not present, the node should either not be registered, + * or it should return -1. If the feature is present, the node should return + * 0. If the feature is present and its use is advised, the node should + * return 1. + */ +SYSCTL_NODE(_hw, OID_AUTO, optional, CTLFLAG_RW, NULL, "optional features"); + +SYSCTL_INT(_hw_optional, OID_AUTO, floatingpoint, CTLFLAG_RD | CTLFLAG_KERN, 0, 1, ""); /* always set */ + +/* + * Deprecated variables. These are supported for backwards compatibility + * purposes only. The MASKED flag requests that the variables not be + * printed by sysctl(8) and similar utilities. + * + * The variables named *_compat here are int-sized versions of variables + * that are now exported as quads. The int-sized versions are normally + * looked up only by number, wheras the quad-sized versions should be + * looked up by name. + * + * The *_compat nodes are *NOT* visible within the kernel. + */ +SYSCTL_INT (_hw, HW_PAGESIZE, pagesize_compat, CTLFLAG_RD | CTLFLAG_MASKED, &page_size, 0, ""); +SYSCTL_INT (_hw, HW_BUS_FREQ, busfrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED, &gPEClockFrequencyInfo.bus_clock_rate_hz, 0, ""); +SYSCTL_INT (_hw, HW_CPU_FREQ, cpufrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED, &gPEClockFrequencyInfo.cpu_clock_rate_hz, 0, ""); +SYSCTL_PROC(_hw, HW_CACHELINE, cachelinesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_CACHELINE, sysctl_hw_generic, "I", ""); +SYSCTL_PROC(_hw, HW_L1ICACHESIZE, l1icachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L1ICACHESIZE, sysctl_hw_generic, "I", ""); +SYSCTL_PROC(_hw, HW_L1DCACHESIZE, l1dcachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L1DCACHESIZE, sysctl_hw_generic, "I", ""); +SYSCTL_PROC(_hw, HW_L2CACHESIZE, l2cachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L2CACHESIZE, sysctl_hw_generic, "I", ""); +SYSCTL_PROC(_hw, HW_L3CACHESIZE, l3cachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L3CACHESIZE, sysctl_hw_generic, "I", ""); +SYSCTL_INT (_hw, HW_TB_FREQ, tbfrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED, &gPEClockFrequencyInfo.timebase_frequency_hz, 0, ""); +SYSCTL_PROC(_hw, HW_MACHINE, machine, CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_MACHINE, sysctl_hw_generic, "A", ""); +SYSCTL_PROC(_hw, HW_MODEL, model, CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_MODEL, sysctl_hw_generic, "A", ""); +SYSCTL_UINT(_hw, HW_PHYSMEM, physmem, CTLFLAG_RD | CTLFLAG_MASKED, &mem_size, 0, ""); +SYSCTL_PROC(_hw, HW_USERMEM, usermem, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_USERMEM, sysctl_hw_generic, "I", ""); +SYSCTL_PROC(_hw, HW_EPOCH, epoch, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_EPOCH, sysctl_hw_generic, "I", ""); +SYSCTL_PROC(_hw, HW_VECTORUNIT, vectorunit, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_VECTORUNIT, sysctl_hw_generic, "I", ""); +SYSCTL_PROC(_hw, HW_L2SETTINGS, l2settings, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L2SETTINGS, sysctl_hw_generic, "I", ""); +SYSCTL_PROC(_hw, HW_L3SETTINGS, l3settings, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L3SETTINGS, sysctl_hw_generic, "I", ""); + +/****************************************************************************** + * Generic MIB initialisation. + * + * This is a hack, and should be replaced with SYSINITs + * at some point. + */ +void +sysctl_mib_init(void) +{ + + /* + * Populate the optional portion of the hw.* MIB. + * + * XXX This could be broken out into parts of the code + * that actually directly relate to the functions in + * question. + */ +#ifdef __ppc__ + { + static int altivec_flag = -1; + static SYSCTL_INT(_hw_optional, OID_AUTO, altivec, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &altivec_flag, 0, ""); + + if (_cpu_capabilities & kHasAltivec) { + altivec_flag = 1; + sysctl_register_oid(&sysctl__hw_optional_altivec); + } + } + { + static int graphicsops_flag = -1; + static SYSCTL_INT(_hw_optional, OID_AUTO, graphicsops, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &graphicsops_flag, 0, ""); + + if (_cpu_capabilities & kHasGraphicsOps) { + graphicsops_flag = 1; + sysctl_register_oid(&sysctl__hw_optional_graphicsops); + } + } + { + static int x64bitops_flag = -1; + static SYSCTL_INT(_hw_optional, OID_AUTO, 64bitops, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &x64bitops_flag, 0, ""); + + if (_cpu_capabilities & k64Bit) { + x64bitops_flag = 1; + sysctl_register_oid(&sysctl__hw_optional_64bitops); + } + } + { + static int fsqrt_flag = -1; + static SYSCTL_INT(_hw_optional, OID_AUTO, fsqrt, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &fsqrt_flag, 0, ""); + + if (_cpu_capabilities & kHasFsqrt) { + fsqrt_flag = 1; + sysctl_register_oid(&sysctl__hw_optional_fsqrt); + } + } + { + static int stfiwx_flag = -1; + static SYSCTL_INT(_hw_optional, OID_AUTO, stfiwx, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &stfiwx_flag, 0, ""); + + if (_cpu_capabilities & kHasStfiwx) { + stfiwx_flag = 1; + sysctl_register_oid(&sysctl__hw_optional_stfiwx); + } + } + { + static int dcba_flag = -1; + static SYSCTL_INT(_hw_optional, OID_AUTO, dcba, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &dcba_flag, 0, ""); + + if (_cpu_capabilities & kDcbaAvailable) + dcba_flag = 0; + if (_cpu_capabilities & kDcbaRecommended) + dcba_flag = 1; + if (dcba_flag >= 0) + sysctl_register_oid(&sysctl__hw_optional_dcba); + } + { + static int datastreams_flag = -1; + static SYSCTL_INT(_hw_optional, OID_AUTO, datastreams, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &datastreams_flag, 0, ""); + + if (_cpu_capabilities & kDataStreamsAvailable) + datastreams_flag = 0; + if (_cpu_capabilities & kDataStreamsRecommended) + datastreams_flag = 1; + if (datastreams_flag >= 0) + sysctl_register_oid(&sysctl__hw_optional_datastreams); + } + { + static int dcbtstreams_flag = -1; + static SYSCTL_INT(_hw_optional, OID_AUTO, dcbtstreams, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &dcbtstreams_flag, 0, ""); + + if (_cpu_capabilities & kDcbtStreamsAvailable) + dcbtstreams_flag = 0; + if (_cpu_capabilities & kDcbtStreamsRecommended) + dcbtstreams_flag = 1; + if (dcbtstreams_flag >= 0) + sysctl_register_oid(&sysctl__hw_optional_dcbtstreams); + } +#else +# warning we do not support this platform yet +#endif /* __ppc__ */ + + +}