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| author | Sergei Shtylyov <sshtylyov@ru.mvista.com> | 2008-04-18 23:39:03 +0400 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-04-24 18:09:52 +0400 |
| commit | 8911c9e3343c647b59727b47b10feca7ee9ac9c3 (patch) | |
| tree | af0aff3b05bf448e7b8189a44d8f9aa7502b1e16 /drivers/scsi/aha152x.c | |
| parent | 448504130f18bc9d8d10ba045775c906abd01438 (diff) | |
| download | linux-8911c9e3343c647b59727b47b10feca7ee9ac9c3.tar.xz | |
[SCSI] aic79xx: 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/aha152x.c')
0 files changed, 0 insertions, 0 deletions