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authorLinus Torvalds <torvalds@g5.osdl.org>2005-10-15 04:17:04 +0400
committerLinus Torvalds <torvalds@g5.osdl.org>2005-10-15 04:17:04 +0400
commitf8cc5756dee3c2a4c56a7f089291f5ae0232747f (patch)
treec56914922a40cca1a48ac0191f2f5d7fb224ad55 /include
parentbf7c7decb9752a3cb644b435cb354c8948606680 (diff)
parentb4d1b825785847cddee6d104113da913f2ca8efb (diff)
downloadlinux-f8cc5756dee3c2a4c56a7f089291f5ae0232747f.tar.xz
Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
Diffstat (limited to 'include')
-rw-r--r--include/asm-sparc64/pbm.h30
1 files changed, 9 insertions, 21 deletions
diff --git a/include/asm-sparc64/pbm.h b/include/asm-sparc64/pbm.h
index 38bbbccb4068..dd35a2c7798a 100644
--- a/include/asm-sparc64/pbm.h
+++ b/include/asm-sparc64/pbm.h
@@ -27,23 +27,27 @@
* PCI bus.
*/
-#define PBM_LOGCLUSTERS 3
-#define PBM_NCLUSTERS (1 << PBM_LOGCLUSTERS)
-
struct pci_controller_info;
/* This contains the software state necessary to drive a PCI
* controller's IOMMU.
*/
+struct pci_iommu_arena {
+ unsigned long *map;
+ unsigned int hint;
+ unsigned int limit;
+};
+
struct pci_iommu {
/* This protects the controller's IOMMU and all
* streaming buffers underneath.
*/
spinlock_t lock;
+ struct pci_iommu_arena arena;
+
/* IOMMU page table, a linear array of ioptes. */
iopte_t *page_table; /* The page table itself. */
- int page_table_sz_bits; /* log2 of ow many pages does it map? */
/* Base PCI memory space address where IOMMU mappings
* begin.
@@ -62,12 +66,6 @@ struct pci_iommu {
*/
unsigned long write_complete_reg;
- /* The lowest used consistent mapping entry. Since
- * we allocate consistent maps out of cluster 0 this
- * is relative to the beginning of closter 0.
- */
- u32 lowest_consistent_map;
-
/* In order to deal with some buggy third-party PCI bridges that
* do wrong prefetching, we never mark valid mappings as invalid.
* Instead we point them at this dummy page.
@@ -75,16 +73,6 @@ struct pci_iommu {
unsigned long dummy_page;
unsigned long dummy_page_pa;
- /* If PBM_NCLUSTERS is ever decreased to 4 or lower,
- * or if largest supported page_table_sz * 8K goes above
- * 2GB, you must increase the size of the type of
- * these counters. You have been duly warned. -DaveM
- */
- struct {
- u16 next;
- u16 flush;
- } alloc_info[PBM_NCLUSTERS];
-
/* CTX allocation. */
unsigned long ctx_lowest_free;
unsigned long ctx_bitmap[IOMMU_NUM_CTXS / (sizeof(unsigned long) * 8)];
@@ -102,7 +90,7 @@ struct pci_iommu {
u32 dma_addr_mask;
};
-extern void pci_iommu_table_init(struct pci_iommu *, int);
+extern void pci_iommu_table_init(struct pci_iommu *iommu, int tsbsize, u32 dma_offset, u32 dma_addr_mask);
/* This describes a PCI bus module's streaming buffer. */
struct pci_strbuf {