diff options
author | Ingo Molnar <mingo@kernel.org> | 2016-11-22 12:37:38 +0100 |
---|---|---|
committer | Ingo Molnar <mingo@kernel.org> | 2016-11-22 12:37:38 +0100 |
commit | 02cb689b2c102178c83e763e4f34b3efe7f969e2 (patch) | |
tree | cba7eb3f16487cef5dc4a2690686b1e2eb42af0c /arch/sparc/include/asm/iommu_64.h | |
parent | 194a6b5b9cb6b91a5f7d86984165a3bc55188599 (diff) | |
parent | 3b404a519815b9820f73f1ecf404e5546c9270ba (diff) | |
download | op-kernel-dev-02cb689b2c102178c83e763e4f34b3efe7f969e2.zip op-kernel-dev-02cb689b2c102178c83e763e4f34b3efe7f969e2.tar.gz |
Merge branch 'linus' into locking/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/sparc/include/asm/iommu_64.h')
-rw-r--r-- | arch/sparc/include/asm/iommu_64.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/iommu_64.h b/arch/sparc/include/asm/iommu_64.h index cd0d69f..f24f356 100644 --- a/arch/sparc/include/asm/iommu_64.h +++ b/arch/sparc/include/asm/iommu_64.h @@ -24,8 +24,36 @@ struct iommu_arena { unsigned int limit; }; +#define ATU_64_SPACE_SIZE 0x800000000 /* 32G */ + +/* Data structures for SPARC ATU architecture */ +struct atu_iotsb { + void *table; /* IOTSB table base virtual addr*/ + u64 ra; /* IOTSB table real addr */ + u64 dvma_size; /* ranges[3].size or OS slected 32G size */ + u64 dvma_base; /* ranges[3].base */ + u64 table_size; /* IOTSB table size */ + u64 page_size; /* IO PAGE size for IOTSB */ + u32 iotsb_num; /* tsbnum is same as iotsb_handle */ +}; + +struct atu_ranges { + u64 base; + u64 size; +}; + +struct atu { + struct atu_ranges *ranges; + struct atu_iotsb *iotsb; + struct iommu_map_table tbl; + u64 base; + u64 size; + u64 dma_addr_mask; +}; + struct iommu { struct iommu_map_table tbl; + struct atu *atu; spinlock_t lock; u32 dma_addr_mask; iopte_t *page_table; |