vasilito
dc68054305
- Restore 29 recipe symlinks (libdrm, qtbase, dbus, sddm, pipewire, etc.) - Restore 33 patches (KDE, libdrm, mesa, pipewire, sddm, wireplumber) - Restore 20+ local/scripts (audit, lint, test, build helpers) - Restore src/cook/scheduler.rs, status.rs, gnu-config/ - Restore scripts/patch-inclusion-gate.sh, run_mini1.sh, validate-collision-log.sh - Recover TLC source from HEAD (was overwritten by 0.2.3 checkout) - Recover 11 local/docs plans from HEAD (were overwritten) - Recover qt6-wayland-smoke symlink from HEAD - Fix MOTD: remove garbled ASCII art, use clean text - Update version: 0.2.0 -> 0.2.4 in os-release, motd, config - Reduce filesystem_size: 1536 -> 512 MiB - Add ABSOLUTE RULE to AGENTS.md: never delete/ignore packages - Reduce pcid scheme log verbosity: info -> debug
53 lines
1.5 KiB
C
53 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* sched_clock.h: support for extending counters to full 64-bit ns counter
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*/
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#ifndef LINUX_SCHED_CLOCK
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#define LINUX_SCHED_CLOCK
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#include <linux/types.h>
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#ifdef CONFIG_GENERIC_SCHED_CLOCK
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/**
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* struct clock_read_data - data required to read from sched_clock()
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*
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* @epoch_ns: sched_clock() value at last update
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* @epoch_cyc: Clock cycle value at last update.
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* @sched_clock_mask: Bitmask for two's complement subtraction of non 64bit
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* clocks.
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* @read_sched_clock: Current clock source (or dummy source when suspended).
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* @mult: Multiplier for scaled math conversion.
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* @shift: Shift value for scaled math conversion.
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*
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* Care must be taken when updating this structure; it is read by
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* some very hot code paths. It occupies <=40 bytes and, when combined
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* with the seqcount used to synchronize access, comfortably fits into
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* a 64 byte cache line.
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*/
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struct clock_read_data {
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u64 epoch_ns;
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u64 epoch_cyc;
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u64 sched_clock_mask;
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u64 (*read_sched_clock)(void);
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u32 mult;
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u32 shift;
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};
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extern struct clock_read_data *sched_clock_read_begin(unsigned int *seq);
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extern int sched_clock_read_retry(unsigned int seq);
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extern void generic_sched_clock_init(void);
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extern void sched_clock_register(u64 (*read)(void), int bits,
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unsigned long rate);
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#else
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static inline void generic_sched_clock_init(void) { }
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static inline void sched_clock_register(u64 (*read)(void), int bits,
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unsigned long rate)
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{
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}
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#endif
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#endif
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