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📄 _limits.h(4.19 KB)
📄 _stdint.h(6 KB)
📄 _types.h(4.98 KB)
📄 abi.h(3.44 KB)
📄 asm.h(15.48 KB)
📄 atomic.h(24.79 KB)
📄 bootinfo.h(3.31 KB)
📄 bus.h(27.08 KB)
📄 bus_dma.h(1.53 KB)
📄 cache.h(7.58 KB)
📄 cache_mipsNN.h(4.58 KB)
📄 cache_r4k.h(15.72 KB)
📄 cca.h(5.12 KB)
📄 cdefs.h(2.37 KB)
📄 clock.h(1 KB)
📄 counter.h(2.76 KB)
📄 cpu.h(3.3 KB)
📄 cpufunc.h(11.47 KB)
📄 cpuinfo.h(2.83 KB)
📄 cpuregs.h(23.47 KB)
📄 db_machdep.h(3.42 KB)
📄 dump.h(2.17 KB)
📄 efi.h(260 B)
📄 elf.h(7.48 KB)
📄 endian.h(4.69 KB)
📄 exec.h(1.87 KB)
📄 fdt.h(1.81 KB)
📄 float.h(3.7 KB)
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📄 fls64.h(1.85 KB)
📄 fpu.h(141 B)
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📄 gdb_machdep.h(2.01 KB)
📄 hwfunc.h(3.24 KB)
📄 ieee.h(4.53 KB)
📄 ieeefp.h(892 B)
📄 in_cksum.h(2.95 KB)
📄 intr.h(2.78 KB)
📄 intr_machdep.h(2.71 KB)
📄 kdb.h(1.82 KB)
📄 limits.h(1.97 KB)
📄 locore.h(2.23 KB)
📄 md_var.h(2.95 KB)
📄 memdev.h(1.67 KB)
📄 metadata.h(1.56 KB)
📄 minidump.h(1.72 KB)
📄 mips_opcode.h(9.26 KB)
📄 octeon_cop2.h(6.98 KB)
📄 ofw_machdep.h(1.79 KB)
📄 param.h(5.68 KB)
📄 pcb.h(4.74 KB)
📄 pcpu.h(3.59 KB)
📄 pcpu_aux.h(1.94 KB)
📄 pmap.h(6.66 KB)
📄 pmc_mdep.h(1.83 KB)
📄 proc.h(3.36 KB)
📄 procctl.h(62 B)
📄 profile.h(4.56 KB)
📄 pte.h(7.88 KB)
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📄 reg.h(3.29 KB)
📄 regdef.h(3.62 KB)
📄 regnum.h(5.38 KB)
📄 reloc.h(1.91 KB)
📄 resource.h(2.03 KB)
📄 runq.h(2.2 KB)
📄 sc_machdep.h(2.41 KB)
📄 setjmp.h(2.1 KB)
📄 sf_buf.h(2.04 KB)
📄 sigframe.h(2.62 KB)
📄 signal.h(3.17 KB)
📄 smp.h(1.26 KB)
📄 stdarg.h(1.58 KB)
📄 sysarch.h(1.89 KB)
📄 tlb.h(2.26 KB)
📄 tls.h(1.76 KB)
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📄 ucontext.h(4.34 KB)
📄 vdso.h(1.57 KB)
📄 vm.h(1.82 KB)
📄 vmparam.h(6.17 KB)

Editing: counter.h

/*-
 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
 *
 * Copyright (c) 2012 Konstantin Belousov <kib@FreeBSD.org>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * $FreeBSD$
 */

#ifndef __MACHINE_COUNTER_H__
#define __MACHINE_COUNTER_H__

#include <sys/pcpu.h>
#ifdef INVARIANTS
#include <sys/proc.h>
#endif

#define	EARLY_COUNTER	&((struct pcpu *)pcpu_space)->pc_early_dummy_counter

#define	counter_enter()	critical_enter()
#define	counter_exit()	critical_exit()

#ifdef IN_SUBR_COUNTER_C
/* XXXKIB non-atomic 64bit read on 32bit */
static inline uint64_t
counter_u64_read_one(uint64_t *p, int cpu)
{

return (*(uint64_t *)((char *)p + UMA_PCPU_ALLOC_SIZE * cpu));
}

static inline uint64_t
counter_u64_fetch_inline(uint64_t *p)
{
	uint64_t r;
	int i;

r = 0;
	for (i = 0; i < mp_ncpus; i++)
		r += counter_u64_read_one((uint64_t *)p, i);

return (r);
}

/* XXXKIB non-atomic 64bit store on 32bit, might interrupt increment */
static void
counter_u64_zero_one_cpu(void *arg)
{

*((uint64_t *)((char *)arg + UMA_PCPU_ALLOC_SIZE *
	    PCPU_GET(cpuid))) = 0;
}

static inline void
counter_u64_zero_inline(counter_u64_t c)
{

smp_rendezvous(smp_no_rendezvous_barrier, counter_u64_zero_one_cpu,
	    smp_no_rendezvous_barrier, c);
}
#endif

#define	counter_u64_add_protected(c, inc)	do {	\
	CRITICAL_ASSERT(curthread);			\
	*(uint64_t *)zpcpu_get(c) += (inc);		\
} while (0)

static inline void
counter_u64_add(counter_u64_t c, int64_t inc)
{

counter_enter();
	counter_u64_add_protected(c, inc);
	counter_exit();
}

#endif	/* ! __MACHINE_COUNTER_H__ */

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