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| author | Sergei Shtylyov <sshtylyov@ru.mvista.com> | 2008-04-18 23:30:45 +0400 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-04-24 09:09:49 -0500 |
| commit | 448504130f18bc9d8d10ba045775c906abd01438 (patch) | |
| tree | 1c8ca2c200f9c1706eb3494cb7d8e09acff716fa /drivers/scsi/aic7xxx/aic79xx_osm_pci.c | |
| parent | be0d67680d524981dd65c661efe3c9cbd52a684f (diff) | |
[SCSI] aic7xxx: fix MMIO for PPC 44x platforms
The driver stores the PCI resource address into 'u_long' variable before
calling ioremap_nocache() on it. This warrants kernel oops when the registers
are accessed on PPC 44x platforms which (being 32-bit) have PCI memory space
mapped beyond 4 GB.
The arch/ppc/ kernel has a fixup in ioremap() that helps create an illusion
that the PCI memory resources are mapped below 4 GB, but arch/powerpc/ code
got rid of this trick, having instead CONFIG_RESOURCES_64BIT enabled.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/aic7xxx/aic79xx_osm_pci.c')
0 files changed, 0 insertions, 0 deletions