Re: [Openipmi-developer] [PATCH 0/5] ia64 ioremap, DMI, EFI system table

From: Matt Domsch <>
Date: 2006-01-31 04:11:31
On Thu, Jan 19, 2006 at 01:10:57PM -0700, Bjorn Helgaas wrote:
> OK, here's a set of patches to (hopefully) clean up this area
> a bit:
> 1  Simplify efi_mem_attribute_range() so I can use it both for
>    /dev/mem validation and ioremap() attribute checking.
> 2  Make ia64 ioremap() check memory attributes, so it works for
>    plain memory that only supports write-back access, as well as
>    for MMIO space that only supports uncacheable access.
> 3  DMI ioremaps too much space, which makes it fail on machines
>    where the SMBIOS table is near the end of a memory region.
> 4  Keep EFI table addresses as physical, not virtual.  The SMBIOS
>    address was physical on x86 but virtual on ia64, which broke
>    dmi_scan_machine().
> 5  Use smarter ioremap() implementation to remove some cruft in
>    acpi_os_{read,write,map}_memory().  This one's just an optional
>    cleanup; I don't think it fixes any bugs.

This set of patches works for me on my IA64 Tiger4 (Dell PowerEdge
7250) in kernel 2.6.16-rc1-mm4.  modprobe ipmi_si successfully
automatically finds the IPMI controller now.

Thanks Bjorn for doing a more complete cleanup in support of this!


Matt Domsch
Software Architect
Dell Linux Solutions &
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Received on Tue Jan 31 04:12:35 2006

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