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| author | Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> | 2010-11-16 22:06:22 +0300 |
|---|---|---|
| committer | Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> | 2010-11-16 22:06:22 +0300 |
| commit | 20b4755e4fbb226eb42951bd40b53fcbce9ef944 (patch) | |
| tree | 43da70e0b32ee423d3643ecd422821383411ab72 /arch/x86/pci/i386.c | |
| parent | 744f9f104ea262de1dc3e29265870c649f0d9473 (diff) | |
| parent | e53beacd23d9cb47590da6a7a7f6d417b941a994 (diff) | |
| download | linux-20b4755e4fbb226eb42951bd40b53fcbce9ef944.tar.xz | |
Merge commit 'v2.6.37-rc2' into upstream/xenfs
* commit 'v2.6.37-rc2': (10093 commits)
Linux 2.6.37-rc2
capabilities/syslog: open code cap_syslog logic to fix build failure
i2c: Sanity checks on adapter registration
i2c: Mark i2c_adapter.id as deprecated
i2c: Drivers shouldn't include <linux/i2c-id.h>
i2c: Delete unused adapter IDs
i2c: Remove obsolete cleanup for clientdata
include/linux/kernel.h: Move logging bits to include/linux/printk.h
Fix gcc 4.5.1 miscompiling drivers/char/i8k.c (again)
hwmon: (w83795) Check for BEEP pin availability
hwmon: (w83795) Clear intrusion alarm immediately
hwmon: (w83795) Read the intrusion state properly
hwmon: (w83795) Print the actual temperature channels as sources
hwmon: (w83795) List all usable temperature sources
hwmon: (w83795) Expose fan control method
hwmon: (w83795) Fix fan control mode attributes
hwmon: (lm95241) Check validity of input values
hwmon: Change mail address of Hans J. Koch
PCI: sysfs: fix printk warnings
GFS2: Fix inode deallocation race
...
Diffstat (limited to 'arch/x86/pci/i386.c')
| -rw-r--r-- | arch/x86/pci/i386.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c index 55253095be84..c4bb261c106e 100644 --- a/arch/x86/pci/i386.c +++ b/arch/x86/pci/i386.c @@ -65,16 +65,21 @@ pcibios_align_resource(void *data, const struct resource *res, resource_size_t size, resource_size_t align) { struct pci_dev *dev = data; - resource_size_t start = res->start; + resource_size_t start = round_down(res->end - size + 1, align); if (res->flags & IORESOURCE_IO) { - if (skip_isa_ioresource_align(dev)) - return start; - if (start & 0x300) - start = (start + 0x3ff) & ~0x3ff; + + /* + * If we're avoiding ISA aliases, the largest contiguous I/O + * port space is 256 bytes. Clearing bits 9 and 10 preserves + * all 256-byte and smaller alignments, so the result will + * still be correctly aligned. + */ + if (!skip_isa_ioresource_align(dev)) + start &= ~0x300; } else if (res->flags & IORESOURCE_MEM) { if (start < BIOS_END) - start = BIOS_END; + start = res->end; /* fail; no space */ } return start; } @@ -311,6 +316,8 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, */ prot |= _PAGE_CACHE_UC_MINUS; + prot |= _PAGE_IOMAP; /* creating a mapping for IO */ + vma->vm_page_prot = __pgprot(prot); if (io_remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff, |