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/xnu-12377.1.9/doc/observability/
H A Dcpu_counters.md7 CPU performance counters are hardware registers that count events of interest to efficient CPU exec…
20 There are several subsystems that provide access to CPU counter hardware:
28 …ystem provides a policy layer on top of kpc and Monotonic to prevent malicious use of the hardware.
H A Drecount.md88 At context switch, `recount_switch_thread` captures the hardware counters with `recount_snapshot` i…
/xnu-12377.1.9/doc/arm/
H A Dsme.md4 Managing hardware resources related to SME state.
9 This document describes how xnu manages the hardware resources associated with
19 This document summarizes SVE, SME, and SME2 hardware features that are relevant
54 bits in size. The value of SVL is determined by both hardware and software.
62 have no particular meaning to hardware.
90 SME-related hardware. Hence software should clear these bits as soon as
107 ### Other hardware resources
124 `SMIDR_EL1` advertises hardware properties about the SME implementation,
248 the actual hardware priority.
/xnu-12377.1.9/doc/primitives/
H A Datomics.md53 and hardware reorderings and optimizations, which is great, but comes with
337 implicit compiler barrier, that can be used as a root for a chain of hardware
346 will provide a hardware dependency,
372 * This isn't safe, as there's absolutely no hardware dependency involved.
398 There are 4 interfaces involved with hardware dependencies:
400 1. `os_atomic_load(..., dependency)` to initiate roots of hardware dependencies,
/xnu-12377.1.9/iokit/DriverKit/
H A DIOService.iig78 * When set, PM kernel will prefer to leave the CPU and core hardware
348 * to hardware DMA requests.
355 …* nanoseconds that can be tolerated by the driver. This value is hardware dependent and is re…
356 * amount of buffering available in the hardware.
H A DIOInterruptDispatchSource.iig83 …* @brief Returns the type of interrupt used for a device supplying hardware interrupts, by i…
H A DIODMACommand.iig107 * the hardware's DMA capaibilities
/xnu-12377.1.9/libsyscall/mach/
H A Derr_iokit.sub201 "(iokit/bluetooth) interrupted operation, hardware reset", // 001
H A Derr_server.sub140 "(server/us) hardware error",
/xnu-12377.1.9/doc/vm/
H A Dmemorystatus_kills.md92 NB: These thresholds are very old and have probably not scaled well with current hardware. Accordin…
/xnu-12377.1.9/doc/lifecycle/
H A Dhibernation.md133 values can be used to fix up the offets applied to the hardware clock after
/xnu-12377.1.9/config/
H A DMASTER752 # Enable hardware correlation of mach absolute time
/xnu-12377.1.9/
H A DREADME.md489 Ethernet, Thunderbolt, and serial debugging are supported, depending on the hardware.
/xnu-12377.1.9/doc/scheduler/
H A Dsched_clutch_edge.md182 …ently exploit this performance & energy efficiency heterogeneity in the hardware. However the same…
/xnu-12377.1.9/bsd/vfs/
H A Dvfs_subr.c1582 struct preserved_mount hardware = { NULLVP, NULL, NULLVP, NULLVP, "System/Volumes/Hardware" }; in vfs_switch_root() local
1594 preserved[6] = &hardware; in vfs_switch_root()