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Make it possible to load fdt_slicer as a module (unloading works too fwiw).

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This commit is contained in:
Ian Lepore 2019-02-26 22:34:29 +00:00
parent f2f497c6fe
commit 4e46217874
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=344609
3 changed files with 50 additions and 2 deletions
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32
sys/dev/fdt/fdt_slicer.c
View File

@ -32,6 +32,7 @@ __FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/slicer.h>
#include <dev/fdt/fdt_common.h>
@ -131,10 +132,37 @@ fdt_slicer_init(void)
FALSE);
}
static void
fdt_slicer_cleanup(void)
{
flash_register_slicer(NULL, FLASH_SLICES_TYPE_NAND, true);
flash_register_slicer(NULL, FLASH_SLICES_TYPE_CFI, true);
flash_register_slicer(NULL, FLASH_SLICES_TYPE_SPI, true);
}
/*
* Must be initialized after GEOM classes (SI_SUB_DRIVERS/SI_ORDER_FIRST),
* i. e. after g_init() is called, due to the use of the GEOM topology_lock
* in flash_register_slicer(). However, must be before SI_SUB_CONFIGURE.
*/
SYSINIT(fdt_slicer_rootconf, SI_SUB_DRIVERS, SI_ORDER_SECOND, fdt_slicer_init,
NULL);
SYSINIT(fdt_slicer, SI_SUB_DRIVERS, SI_ORDER_SECOND, fdt_slicer_init, NULL);
SYSUNINIT(fdt_slicer, SI_SUB_DRIVERS, SI_ORDER_SECOND, fdt_slicer_cleanup, NULL);
static int
mod_handler(module_t mod, int type, void *data)
{
/*
* Nothing to do here: the SYSINIT/SYSUNINIT defined above run
* automatically at module load/unload time.
*/
return (0);
}
static moduledata_t fdt_slicer_mod = {
"fdt_slicer", mod_handler, NULL
};
DECLARE_MODULE(fdt_slicer, fdt_slicer_mod, SI_SUB_DRIVERS, SI_ORDER_SECOND);
MODULE_VERSION(fdt_slicer, 1);

7
sys/modules/fdt/Makefile Normal file
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@ -0,0 +1,7 @@
# $FreeBSD$
# Build dev/fdt modules.
SUBDIR = \
fdt_slicer \
.include <bsd.subdir.mk>

13
sys/modules/fdt/fdt_slicer/Makefile Normal file
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@ -0,0 +1,13 @@
# $FreeBSD$
.PATH: ${SRCTOP}/sys/dev/fdt
KMOD= fdt_slicer
SRCS= fdt_slicer.c
# Generated files...
SRCS+= \
ofw_bus_if.h \
opt_platform.h \
.include <bsd.kmod.mk>