diff options
| author | Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> | 2016-08-23 13:52:34 -0500 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2016-09-05 12:41:46 +0200 |
| commit | 880ac60e2538337f84d9f76ab7b3c13ee7787804 (patch) | |
| tree | 8785d7a8c6fde2d636b69a8f905058d7b214f8dc /drivers/iommu/amd_iommu_types.h | |
| parent | a38180bd366f9912a08f52dd6f9a843bf0107d5f (diff) | |
iommu/amd: Introduce interrupt remapping ops structure
Currently, IOMMU support two interrupt remapping table entry formats,
32-bit (legacy) and 128-bit (GA). The spec also implies that it might
support additional modes/formats in the future.
So, this patch introduces the new struct amd_irte_ops, which allows
the same code to work with different irte formats by providing hooks
for various operations on an interrupt remapping table entry.
Suggested-by: Joerg Roedel <joro@8bytes.org>
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/amd_iommu_types.h')
| -rw-r--r-- | drivers/iommu/amd_iommu_types.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h index 8b61289cd5b7..6b93ebcbc181 100644 --- a/drivers/iommu/amd_iommu_types.h +++ b/drivers/iommu/amd_iommu_types.h @@ -410,6 +410,7 @@ struct amd_iommu_fault { struct iommu_domain; struct irq_domain; +struct amd_irte_ops; /* * This structure contains generic data for IOMMU protection domains @@ -533,6 +534,8 @@ struct amd_iommu { #ifdef CONFIG_IRQ_REMAP struct irq_domain *ir_domain; struct irq_domain *msi_domain; + + struct amd_irte_ops *irte_ops; #endif }; @@ -779,6 +782,23 @@ struct amd_ir_data { struct irq_2_irte irq_2_irte; union irte irte_entry; struct msi_msg msi_entry; + void *entry; /* Pointer to union irte or struct irte_ga */ +}; + +struct amd_irte_ops { + void (*prepare)(void *, u32, u32, u8, u32); + void (*activate)(void *, u16, u16); + void (*deactivate)(void *, u16, u16); + void (*set_affinity)(void *, u16, u16, u8, u32); + void *(*get)(struct irq_remap_table *, int); + void (*set_allocated)(struct irq_remap_table *, int); + bool (*is_allocated)(struct irq_remap_table *, int); + void (*clear_allocated)(struct irq_remap_table *, int); }; +#ifdef CONFIG_IRQ_REMAP +extern struct amd_irte_ops irte_32_ops; +extern struct amd_irte_ops irte_128_ops; +#endif + #endif /* _ASM_X86_AMD_IOMMU_TYPES_H */ |