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| author | Joerg Roedel <joerg.roedel@amd.com> | 2008-11-20 20:49:56 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-12-05 10:55:15 -0800 |
| commit | c6dcf8c6246d90238100a4db78a1fde695cd3edb (patch) | |
| tree | 0f7cf16430caa1bc2f929d3393bfdc6ad63dba15 /include | |
| parent | fb03039affb5a36920abcfb5523c30ca39098498 (diff) | |
| download | lwn-c6dcf8c6246d90238100a4db78a1fde695cd3edb.tar.gz lwn-c6dcf8c6246d90238100a4db78a1fde695cd3edb.zip | |
x86: always define DECLARE_PCI_UNMAP* macros
commit b627c8b17ccacba38c975bc0f69a49fc4e5261c9 upstream.
Impact: fix boot crash on AMD IOMMU if CONFIG_GART_IOMMU is off
Currently these macros evaluate to a no-op except the kernel is compiled
with GART or Calgary support. But we also need these macros when we have
SWIOTLB, VT-d or AMD IOMMU in the kernel. Since we always compile at
least with SWIOTLB we can define these macros always.
This patch is also for stable backport for the same reason the SWIOTLB
default selection patch is.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-x86/pci_64.h | 14 |
1 files changed, 0 insertions, 14 deletions
diff --git a/include/asm-x86/pci_64.h b/include/asm-x86/pci_64.h index f330234ffa5c..50d3df58c2c4 100644 --- a/include/asm-x86/pci_64.h +++ b/include/asm-x86/pci_64.h @@ -34,8 +34,6 @@ extern void pci_iommu_alloc(void); */ #define PCI_DMA_BUS_IS_PHYS (dma_ops->is_phys) -#if defined(CONFIG_GART_IOMMU) || defined(CONFIG_CALGARY_IOMMU) - #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \ dma_addr_t ADDR_NAME; #define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \ @@ -49,18 +47,6 @@ extern void pci_iommu_alloc(void); #define pci_unmap_len_set(PTR, LEN_NAME, VAL) \ (((PTR)->LEN_NAME) = (VAL)) -#else -/* No IOMMU */ - -#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) -#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) -#define pci_unmap_addr(PTR, ADDR_NAME) (0) -#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0) -#define pci_unmap_len(PTR, LEN_NAME) (0) -#define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0) - -#endif - #endif /* __KERNEL__ */ #endif /* __x8664_PCI_H */ |