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| author |   Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-18 18:01:29 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-18 18:01:29 -0400 |
| commit | 64fb1d0e975e92e012802d371e417266d6531676 (patch) | |
| tree | eb3fba9d0fddc47e29699e689bb45e79a22d1116 /include/linux | |
| parent | Merge tag 'for-linus-4.1-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs (diff) | |
| parent | Merge branch 'iommu-generic-allocator' (diff) | |
| download | linux-dev-64fb1d0e975e92e012802d371e417266d6531676.tar.xz linux-dev-64fb1d0e975e92e012802d371e417266d6531676.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Pull sparc fixes from David Miller
"Unfortunately, I brown paper bagged the generic iommu pool allocator
by applying the wrong revision of the patch series.
This reverts the bad one, and puts the right one in"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
iommu-common: Fix PARISC compile-time warnings
sparc: Make LDC use common iommu poll management functions
sparc: Make sparc64 use scalable lib/iommu-common.c functions
Break up monolithic iommu table/lock into finer graularity pools and lock
sparc: Revert generic IOMMU allocator.
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/iommu-common.h | 38 |
1 files changed, 17 insertions, 21 deletions
diff --git a/include/linux/iommu-common.h b/include/linux/iommu-common.h index 6be5c863f329..bbced83b32ee 100644 --- a/include/linux/iommu-common.h +++ b/include/linux/iommu-common.h @@ -15,41 +15,37 @@ struct iommu_pool { spinlock_t lock; }; -struct iommu_table; - -struct iommu_tbl_ops { - unsigned long (*cookie_to_index)(u64, void *); - void (*demap)(void *, unsigned long, unsigned long); - void (*reset)(struct iommu_table *); -}; - -struct iommu_table { - unsigned long page_table_map_base; - unsigned long page_table_shift; +struct iommu_map_table { + unsigned long table_map_base; + unsigned long table_shift; unsigned long nr_pools; - const struct iommu_tbl_ops *iommu_tbl_ops; + void (*lazy_flush)(struct iommu_map_table *); unsigned long poolsize; - struct iommu_pool arena_pool[IOMMU_NR_POOLS]; + struct iommu_pool pools[IOMMU_NR_POOLS]; u32 flags; #define IOMMU_HAS_LARGE_POOL 0x00000001 +#define IOMMU_NO_SPAN_BOUND 0x00000002 +#define IOMMU_NEED_FLUSH 0x00000004 struct iommu_pool large_pool; unsigned long *map; }; -extern void iommu_tbl_pool_init(struct iommu_table *iommu, +extern void iommu_tbl_pool_init(struct iommu_map_table *iommu, unsigned long num_entries, - u32 page_table_shift, - const struct iommu_tbl_ops *iommu_tbl_ops, - bool large_pool, u32 npools); + u32 table_shift, + void (*lazy_flush)(struct iommu_map_table *), + bool large_pool, u32 npools, + bool skip_span_boundary_check); extern unsigned long iommu_tbl_range_alloc(struct device *dev, - struct iommu_table *iommu, + struct iommu_map_table *iommu, unsigned long npages, unsigned long *handle, - unsigned int pool_hash); + unsigned long mask, + unsigned int align_order); -extern void iommu_tbl_range_free(struct iommu_table *iommu, +extern void iommu_tbl_range_free(struct iommu_map_table *iommu, u64 dma_addr, unsigned long npages, - bool do_demap, void *demap_arg); + unsigned long entry); #endif |