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authorRichard Kennedy <richard@rsk.demon.co.uk>2008-11-24 13:53:24 +0000
committerJoerg Roedel <joerg.roedel@amd.com>2008-12-03 12:20:46 +0100
commiteac9fbc6a90ab3440f4d98a8c52b15a724fc6f4f (patch)
tree689eb26c27ff1e673fd14b9914a4bb25c8586325 /arch
parent061e41fdb5047b1fb161e89664057835935ca1d2 (diff)
downloadop-kernel-dev-eac9fbc6a90ab3440f4d98a8c52b15a724fc6f4f.zip
op-kernel-dev-eac9fbc6a90ab3440f4d98a8c52b15a724fc6f4f.tar.gz
AMD IOMMU: struct amd_iommu remove padding on 64 bit
Remove 16 bytes of padding from struct amd_iommu on 64bit builds reducing its size to 120 bytes, allowing it to span one fewer cachelines. Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/include/asm/amd_iommu_types.h24
1 files changed, 12 insertions, 12 deletions
diff --git a/arch/x86/include/asm/amd_iommu_types.h b/arch/x86/include/asm/amd_iommu_types.h
index 1a30c04..ac302a2 100644
--- a/arch/x86/include/asm/amd_iommu_types.h
+++ b/arch/x86/include/asm/amd_iommu_types.h
@@ -251,13 +251,6 @@ struct amd_iommu {
/* Pointer to PCI device of this IOMMU */
struct pci_dev *dev;
- /*
- * Capability pointer. There could be more than one IOMMU per PCI
- * device function if there are more than one AMD IOMMU capability
- * pointers.
- */
- u16 cap_ptr;
-
/* physical address of MMIO space */
u64 mmio_phys;
/* virtual address of MMIO space */
@@ -266,6 +259,13 @@ struct amd_iommu {
/* capabilities of that IOMMU read from ACPI */
u32 cap;
+ /*
+ * Capability pointer. There could be more than one IOMMU per PCI
+ * device function if there are more than one AMD IOMMU capability
+ * pointers.
+ */
+ u16 cap_ptr;
+
/* pci domain of this IOMMU */
u16 pci_seg;
@@ -284,19 +284,19 @@ struct amd_iommu {
/* size of command buffer */
u32 cmd_buf_size;
- /* event buffer virtual address */
- u8 *evt_buf;
/* size of event buffer */
u32 evt_buf_size;
+ /* event buffer virtual address */
+ u8 *evt_buf;
/* MSI number for event interrupt */
u16 evt_msi_num;
- /* if one, we need to send a completion wait command */
- int need_sync;
-
/* true if interrupts for this IOMMU are already enabled */
bool int_enabled;
+ /* if one, we need to send a completion wait command */
+ int need_sync;
+
/* default dma_ops domain for that IOMMU */
struct dma_ops_domain *default_dom;
};
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