subr_busdma_bufalloc.c File Reference

#include <sys/cdefs.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/busdma_bufalloc.h>
#include <sys/domainset.h>
#include <sys/malloc.h>
#include <vm/vm.h>
#include <vm/vm_extern.h>
#include <vm/vm_kern.h>
#include <vm/uma.h>

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Data Structures
struct	busdma_bufalloc

Macros
#define	MIN_ZONE_BUFSIZE   32
#define	MAX_ZONE_BUFSIZE   PAGE_SIZE

Functions
	__FBSDID ("$FreeBSD$")
busdma_bufalloc_t	busdma_bufalloc_create (const char *name, bus_size_t minimum_alignment, uma_alloc alloc_func, uma_free free_func, uint32_t zcreate_flags)
void	busdma_bufalloc_destroy (busdma_bufalloc_t ba)
struct busdma_bufzone *	busdma_bufalloc_findzone (busdma_bufalloc_t ba, bus_size_t size)
void *	busdma_bufalloc_alloc_uncacheable (uma_zone_t zone, vm_size_t size, int domain, uint8_t *pflag, int wait)
void	busdma_bufalloc_free_uncacheable (void *item, vm_size_t size, uint8_t pflag)

Macro Definition Documentation

MAX_ZONE_BUFSIZE

#define MAX_ZONE_BUFSIZE   PAGE_SIZE

Definition at line 56 of file subr_busdma_bufalloc.c.

MIN_ZONE_BUFSIZE

#define MIN_ZONE_BUFSIZE   32

Definition at line 55 of file subr_busdma_bufalloc.c.

Function Documentation

__FBSDID()

__FBSDID

(

"$FreeBSD$"

)

busdma_bufalloc_alloc_uncacheable()

void * busdma_bufalloc_alloc_uncacheable	(	uma_zone_t	zone,
		vm_size_t	size,
		int	domain,
		uint8_t *	pflag,
		int	wait
	)

Definition at line 153 of file subr_busdma_bufalloc.c.

References domain, and panic().

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busdma_bufalloc_create()

busdma_bufalloc_t busdma_bufalloc_create	(	const char *	name,
		bus_size_t	minimum_alignment,
		uma_alloc	alloc_func,
		uma_free	free_func,
		uint32_t	zcreate_flags
	)

Definition at line 76 of file subr_busdma_bufalloc.c.

References busdma_bufalloc::buf_zones, busdma_bufalloc_destroy(), malloc(), MAX_ZONE_BUFSIZE, busdma_bufalloc::min_size, MIN_ZONE_BUFSIZE, name, busdma_bufalloc::num_zones, and snprintf().

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busdma_bufalloc_destroy()

void busdma_bufalloc_destroy

(

busdma_bufalloc_t

ba

)

Definition at line 120 of file subr_busdma_bufalloc.c.

References free().

Referenced by busdma_bufalloc_create().

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busdma_bufalloc_findzone()

struct busdma_bufzone * busdma_bufalloc_findzone	(	busdma_bufalloc_t	ba,
		bus_size_t	size
	)

Definition at line 136 of file subr_busdma_bufalloc.c.

References MAX_ZONE_BUFSIZE, and panic().

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busdma_bufalloc_free_uncacheable()

void busdma_bufalloc_free_uncacheable	(	void *	item,
		vm_size_t	size,
		uint8_t	pflag
	)

Definition at line 169 of file subr_busdma_bufalloc.c.