diff options
| author | imp <imp@FreeBSD.org> | 2006-08-09 18:25:07 +0000 |
|---|---|---|
| committer | imp <imp@FreeBSD.org> | 2006-08-09 18:25:07 +0000 |
| commit | 82de09b2c05916268aa4fc2161066b78c7d19118 (patch) | |
| tree | a50879097e8a52eb800709d5fcfc79318848d99a /sys/pc98/include | |
| parent | 0598f31308336f183158ca0b7f3cc024a72a7d7f (diff) | |
| download | FreeBSD-src-82de09b2c05916268aa4fc2161066b78c7d19118.zip FreeBSD-src-82de09b2c05916268aa4fc2161066b78c7d19118.tar.gz | |
Add pc98 specific code to adjust the firmware geometry when it differs
from the actual geometry. This enables support of disks larger than
~120GB on pc98 boxes. They make great little network appliances.
I've been using these changes for the past year or so on my network
storage pc98 box :-).
Diffstat (limited to 'sys/pc98/include')
| -rw-r--r-- | sys/pc98/include/md_var.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/sys/pc98/include/md_var.h b/sys/pc98/include/md_var.h index 7d0fb72..7ca6f3c 100644 --- a/sys/pc98/include/md_var.h +++ b/sys/pc98/include/md_var.h @@ -38,4 +38,16 @@ extern int need_pre_dma_flush; extern int need_post_dma_flush; +/* + * The ad driver maps the IDE disk's actual geometry to the firmware's + * notion of geometry. However, PC98 machines need to do something + * different sometimes, so override the hook so we can do so. We have to + * have a knowledge that a device_t is a struct device * here to avoid + * including too many things from this file. + */ +struct disk; +struct device; +void pc98_ad_firmware_geom_adjust(struct device *, struct disk *); +#define ad_firmware_geom_adjust(dev, dsk) pc98_ad_firmware_geom_adjust(dev, dsk) + #endif /* !_PC98_INCLUDE_MD_VAR_H_ */ |
