summaryrefslogtreecommitdiff
path: root/include/asm-powerpc/iommu.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-powerpc/iommu.h')
-rw-r--r--include/asm-powerpc/iommu.h131
1 files changed, 0 insertions, 131 deletions
diff --git a/include/asm-powerpc/iommu.h b/include/asm-powerpc/iommu.h
deleted file mode 100644
index 51ecfef8d843..000000000000
--- a/include/asm-powerpc/iommu.h
+++ /dev/null
@@ -1,131 +0,0 @@
-/*
- * Copyright (C) 2001 Mike Corrigan & Dave Engebretsen, IBM Corporation
- * Rewrite, cleanup:
- * Copyright (C) 2004 Olof Johansson <olof@lixom.net>, IBM Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#ifndef _ASM_IOMMU_H
-#define _ASM_IOMMU_H
-#ifdef __KERNEL__
-
-#include <linux/compiler.h>
-#include <linux/spinlock.h>
-#include <linux/device.h>
-#include <linux/dma-mapping.h>
-#include <linux/bitops.h>
-#include <asm/machdep.h>
-#include <asm/types.h>
-
-#define IOMMU_PAGE_SHIFT 12
-#define IOMMU_PAGE_SIZE (ASM_CONST(1) << IOMMU_PAGE_SHIFT)
-#define IOMMU_PAGE_MASK (~((1 << IOMMU_PAGE_SHIFT) - 1))
-#define IOMMU_PAGE_ALIGN(addr) _ALIGN_UP(addr, IOMMU_PAGE_SIZE)
-
-/* Boot time flags */
-extern int iommu_is_off;
-extern int iommu_force_on;
-
-/* Pure 2^n version of get_order */
-static __inline__ __attribute_const__ int get_iommu_order(unsigned long size)
-{
- return __ilog2((size - 1) >> IOMMU_PAGE_SHIFT) + 1;
-}
-
-
-/*
- * IOMAP_MAX_ORDER defines the largest contiguous block
- * of dma space we can get. IOMAP_MAX_ORDER = 13
- * allows up to 2**12 pages (4096 * 4096) = 16 MB
- */
-#define IOMAP_MAX_ORDER 13
-
-struct iommu_table {
- unsigned long it_busno; /* Bus number this table belongs to */
- unsigned long it_size; /* Size of iommu table in entries */
- unsigned long it_offset; /* Offset into global table */
- unsigned long it_base; /* mapped address of tce table */
- unsigned long it_index; /* which iommu table this is */
- unsigned long it_type; /* type: PCI or Virtual Bus */
- unsigned long it_blocksize; /* Entries in each block (cacheline) */
- unsigned long it_hint; /* Hint for next alloc */
- unsigned long it_largehint; /* Hint for large allocs */
- unsigned long it_halfpoint; /* Breaking point for small/large allocs */
- spinlock_t it_lock; /* Protects it_map */
- unsigned long *it_map; /* A simple allocation bitmap for now */
-};
-
-struct scatterlist;
-
-/* Frees table for an individual device node */
-extern void iommu_free_table(struct iommu_table *tbl, const char *node_name);
-
-/* Initializes an iommu_table based in values set in the passed-in
- * structure
- */
-extern struct iommu_table *iommu_init_table(struct iommu_table * tbl,
- int nid);
-
-extern int iommu_map_sg(struct device *dev, struct iommu_table *tbl,
- struct scatterlist *sglist, int nelems,
- unsigned long mask, enum dma_data_direction direction,
- struct dma_attrs *attrs);
-extern void iommu_unmap_sg(struct iommu_table *tbl, struct scatterlist *sglist,
- int nelems, enum dma_data_direction direction,
- struct dma_attrs *attrs);
-
-extern void *iommu_alloc_coherent(struct device *dev, struct iommu_table *tbl,
- size_t size, dma_addr_t *dma_handle,
- unsigned long mask, gfp_t flag, int node);
-extern void iommu_free_coherent(struct iommu_table *tbl, size_t size,
- void *vaddr, dma_addr_t dma_handle);
-extern dma_addr_t iommu_map_single(struct device *dev, struct iommu_table *tbl,
- void *vaddr, size_t size, unsigned long mask,
- enum dma_data_direction direction,
- struct dma_attrs *attrs);
-extern void iommu_unmap_single(struct iommu_table *tbl, dma_addr_t dma_handle,
- size_t size, enum dma_data_direction direction,
- struct dma_attrs *attrs);
-
-extern void iommu_init_early_pSeries(void);
-extern void iommu_init_early_iSeries(void);
-extern void iommu_init_early_dart(void);
-extern void iommu_init_early_pasemi(void);
-
-#ifdef CONFIG_PCI
-extern void pci_iommu_init(void);
-extern void pci_direct_iommu_init(void);
-#else
-static inline void pci_iommu_init(void) { }
-#endif
-
-extern void alloc_dart_table(void);
-#if defined(CONFIG_PPC64) && defined(CONFIG_PM)
-static inline void iommu_save(void)
-{
- if (ppc_md.iommu_save)
- ppc_md.iommu_save();
-}
-
-static inline void iommu_restore(void)
-{
- if (ppc_md.iommu_restore)
- ppc_md.iommu_restore();
-}
-#endif
-
-#endif /* __KERNEL__ */
-#endif /* _ASM_IOMMU_H */