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📁 ..
📄 altivec.c(4.74 KB)
📄 autoconf.c(2.69 KB)
📄 bus_machdep.c(22.3 KB)
📄 busdma_machdep.c(31.78 KB)
📄 clock.c(8.72 KB)
📄 copyinout.c(15.08 KB)
📄 cpu.c(23.74 KB)
📄 cpu_subr64.S(2.99 KB)
📄 db_disasm.c(31.78 KB)
📄 db_hwwatch.c(1.71 KB)
📄 db_interface.c(1.78 KB)
📄 db_trace.c(8.56 KB)
📄 dump_machdep.c(1.63 KB)
📄 elf32_machdep.c(11.71 KB)
📄 elf64_machdep.c(12 KB)
📄 elf_common.c(4.21 KB)
📄 exec_machdep.c(29.55 KB)
📄 fpu.c(6.47 KB)
📄 gdb_machdep.c(3.5 KB)
📄 genassym.c(10.78 KB)
📄 in_cksum.c(6.64 KB)
📄 interrupt.c(3.9 KB)
📄 intr_machdep.c(15.53 KB)
📄 iommu_if.m(1.74 KB)
📄 machdep.c(21.72 KB)
📄 mem.c(8.4 KB)
📄 minidump_machdep.c(9.09 KB)
📄 mp_machdep.c(8.81 KB)
📄 nexus.c(7.06 KB)
📄 openpic.c(11.35 KB)
📄 pic_if.m(2.45 KB)
📄 platform.c(9.15 KB)
📄 platform_if.m(6.15 KB)
📄 pmap_dispatch.c(8.92 KB)
📄 ptrace_machdep.c(3.58 KB)
📄 sc_machdep.c(2.21 KB)
📄 setjmp.S(2.45 KB)
📄 sigcode32.S(2.4 KB)
📄 sigcode64.S(2.94 KB)
📄 stack_machdep.c(3.1 KB)
📄 support.S(11.06 KB)
📄 swtch32.S(7.31 KB)
📄 swtch64.S(10.59 KB)
📄 syncicache.c(2.51 KB)
📄 sys_machdep.c(1.73 KB)
📄 trap.c(25.06 KB)
📄 uio_machdep.c(4.04 KB)
📄 uma_machdep.c(2.89 KB)
📄 vm_machdep.c(7.5 KB)

Editing: uma_machdep.c

/*-
 * Copyright (c) 2003 The FreeBSD Project
 * 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 ``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 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.
 */

#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/sysctl.h>
#include <vm/vm.h>
#include <vm/vm_param.h>
#include <vm/pmap.h>
#include <vm/vm_page.h>
#include <vm/vm_dumpset.h>
#include <vm/uma.h>
#include <vm/uma_int.h>
#include <machine/md_var.h>

static int hw_uma_mdpages;
SYSCTL_INT(_hw, OID_AUTO, uma_mdpages, CTLFLAG_RD, &hw_uma_mdpages, 0,
	   "UMA MD pages in use");

void *
uma_small_alloc(uma_zone_t zone, vm_size_t bytes, int domain, u_int8_t *flags,
    int wait)
{
	void *va;
	vm_paddr_t pa;
	vm_page_t m;

*flags = UMA_SLAB_PRIV;

m = vm_page_alloc_domain(NULL, 0, domain,
	    malloc2vm_flags(wait) | VM_ALLOC_WIRED | VM_ALLOC_NOOBJ);
	if (m == NULL) 
		return (NULL);

pa = VM_PAGE_TO_PHYS(m);
#ifdef __powerpc64__
	if ((wait & M_NODUMP) == 0)
		dump_add_page(pa);
#endif

if (!hw_direct_map) {
		pmap_kenter(pa, pa);
		va = (void *)(vm_offset_t)pa;
	} else {
		va = (void *)(vm_offset_t)PHYS_TO_DMAP(pa);
	}

if ((wait & M_ZERO) && (m->flags & PG_ZERO) == 0)
		bzero(va, PAGE_SIZE);
	atomic_add_int(&hw_uma_mdpages, 1);

return (va);
}

void
uma_small_free(void *mem, vm_size_t size, u_int8_t flags)
{
	vm_page_t m;

if (hw_direct_map)
		m = PHYS_TO_VM_PAGE(DMAP_TO_PHYS((vm_offset_t)mem));
	else {
		m = PHYS_TO_VM_PAGE(pmap_kextract((vm_offset_t)mem));
		pmap_kremove((vm_offset_t)mem);
	}

KASSERT(m != NULL,
	    ("Freeing UMA block at %p with no associated page", mem));
#ifdef __powerpc64__
	dump_drop_page(VM_PAGE_TO_PHYS(m));
#endif
	vm_page_unwire_noq(m);
	vm_page_free(m);
	atomic_subtract_int(&hw_uma_mdpages, 1);
}

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Editing: uma_machdep.c

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