Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=2cb22e23a5fcbcac2de49493aa57c7694028a06a
Commit: 2cb22e23a5fcbcac2de49493aa57c7694028a06a
Parent: 9b50ffb0c0281bc5a08ccd56ae9bb84296c28f38
Author: Bjorn Helgaas <[EMAIL PROTECTED]>
AuthorDate: Fri Mar 30 10:34:44 2007 -0600
Committer: Tony Luck <[EMAIL PROTECTED]>
CommitDate: Fri Mar 30 09:38:03 2007 -0700
[IA64] allow WB /sys/.../legacy_mem mmaps
Allow cacheable mmaps of legacy_mem if WB access is supported for the
region.
The "legacy_mem" file often contains a shadow option ROM, and some versions
of
X depend on this.
Tim Yamin <[EMAIL PROTECTED]> reported that this change fixes X on a Dell
PowerEdge 3250.
Signed-off-by: Bjorn Helgaas <[EMAIL PROTECTED]>
Signed-off-by: Tony Luck <[EMAIL PROTECTED]>
---
arch/ia64/pci/pci.c | 2 --
1 files changed, 0 insertions(+), 2 deletions(-)
diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c
index 0e83f3b..9f63589 100644
--- a/arch/ia64/pci/pci.c
+++ b/arch/ia64/pci/pci.c
@@ -659,8 +659,6 @@ pci_mmap_legacy_page_range(struct pci_bus *bus, struct
vm_area_struct *vma)
return -EINVAL;
prot = phys_mem_access_prot(NULL, vma->vm_pgoff, size,
vma->vm_page_prot);
- if (pgprot_val(prot) != pgprot_val(pgprot_noncached(vma->vm_page_prot)))
- return -EINVAL;
addr = pci_get_legacy_mem(bus);
if (IS_ERR(addr))
-
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