RMALLOC_WAIT(9F) Kernel Functions for Drivers RMALLOC_WAIT(9F)
rmalloc_wait - allocate space from a resource map, wait if necessary
#include <sys/map.h>
#include <sys/ddi.h>
unsigned long rmalloc_wait(struct map *mp, size_t size);
Architecture independent level 1 (DDI/DKI).
mp
Pointer to the resource map from which space is to be
allocated.
size
Number of units of space to allocate.
The rmalloc_wait() function requests an allocation of space from a
resource map. rmalloc_wait() is similar to the rmalloc(9F) function
with the exception that it will wait for space to become available if
necessary.
The rmalloc_wait() function returns the base of the allocated space.
This function can be called from user, interrupt, or kernel context.
However, in most cases rmalloc_wait() should not be called from
interrupt context.
rmalloc(9F), rmallocmap(9F), rmfree(9F), rmfreemap(9F)
Writing Device Drivers
January 16, 2006 RMALLOC_WAIT(9F)
NAME
rmalloc_wait - allocate space from a resource map, wait if necessary
SYNOPSIS
#include <sys/map.h>
#include <sys/ddi.h>
unsigned long rmalloc_wait(struct map *mp, size_t size);
INTERFACE LEVEL
Architecture independent level 1 (DDI/DKI).
PARAMETERS
mp
Pointer to the resource map from which space is to be
allocated.
size
Number of units of space to allocate.
DESCRIPTION
The rmalloc_wait() function requests an allocation of space from a
resource map. rmalloc_wait() is similar to the rmalloc(9F) function
with the exception that it will wait for space to become available if
necessary.
RETURN VALUES
The rmalloc_wait() function returns the base of the allocated space.
CONTEXT
This function can be called from user, interrupt, or kernel context.
However, in most cases rmalloc_wait() should not be called from
interrupt context.
SEE ALSO
rmalloc(9F), rmallocmap(9F), rmfree(9F), rmfreemap(9F)
Writing Device Drivers
January 16, 2006 RMALLOC_WAIT(9F)