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author | Richard Kennedy <richard@rsk.demon.co.uk> | 2008-11-24 13:53:24 (GMT) |
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committer | Joerg Roedel <joerg.roedel@amd.com> | 2008-12-03 11:20:46 (GMT) |
commit | eac9fbc6a90ab3440f4d98a8c52b15a724fc6f4f (patch) | |
tree | 689eb26c27ff1e673fd14b9914a4bb25c8586325 /arch/x86/include/asm/amd_iommu_types.h | |
parent | 061e41fdb5047b1fb161e89664057835935ca1d2 (diff) | |
download | linux-eac9fbc6a90ab3440f4d98a8c52b15a724fc6f4f.tar.xz |
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/x86/include/asm/amd_iommu_types.h')
-rw-r--r-- | arch/x86/include/asm/amd_iommu_types.h | 24 |
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; }; |