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-rw-r--r--include/asm-x86_64/calgary.h66
-rw-r--r--include/asm-x86_64/pci.h2
-rw-r--r--include/asm-x86_64/tce.h47
3 files changed, 114 insertions, 1 deletions
diff --git a/include/asm-x86_64/calgary.h b/include/asm-x86_64/calgary.h
new file mode 100644
index 000000000000..6e1654f30986
--- /dev/null
+++ b/include/asm-x86_64/calgary.h
@@ -0,0 +1,66 @@
1/*
2 * Derived from include/asm-powerpc/iommu.h
3 *
4 * Copyright (C) 2006 Jon Mason <jdmason@us.ibm.com>, IBM Corporation
5 * Copyright (C) 2006 Muli Ben-Yehuda <muli@il.ibm.com>, IBM Corporation
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21
22#ifndef _ASM_X86_64_CALGARY_H
23#define _ASM_X86_64_CALGARY_H
24
25#include <linux/config.h>
26#include <linux/spinlock.h>
27#include <linux/device.h>
28#include <linux/dma-mapping.h>
29#include <asm/types.h>
30
31struct iommu_table {
32 unsigned long it_base; /* mapped address of tce table */
33 unsigned long it_hint; /* Hint for next alloc */
34 unsigned long *it_map; /* A simple allocation bitmap for now */
35 spinlock_t it_lock; /* Protects it_map */
36 unsigned int it_size; /* Size of iommu table in entries */
37 unsigned char it_busno; /* Bus number this table belongs to */
38 void __iomem *bbar;
39 u64 tar_val;
40 struct timer_list watchdog_timer;
41};
42
43#define TCE_TABLE_SIZE_UNSPECIFIED ~0
44#define TCE_TABLE_SIZE_64K 0
45#define TCE_TABLE_SIZE_128K 1
46#define TCE_TABLE_SIZE_256K 2
47#define TCE_TABLE_SIZE_512K 3
48#define TCE_TABLE_SIZE_1M 4
49#define TCE_TABLE_SIZE_2M 5
50#define TCE_TABLE_SIZE_4M 6
51#define TCE_TABLE_SIZE_8M 7
52
53#ifdef CONFIG_CALGARY_IOMMU
54extern int calgary_iommu_init(void);
55extern void detect_calgary(void);
56#else
57static inline int calgary_iommu_init(void) { return 1; }
58static inline void detect_calgary(void) { return; }
59#endif
60
61static inline unsigned int bus_to_phb(unsigned char busno)
62{
63 return ((busno % 15 == 0) ? 0 : busno / 2 + 1);
64}
65
66#endif /* _ASM_X86_64_CALGARY_H */
diff --git a/include/asm-x86_64/pci.h b/include/asm-x86_64/pci.h
index 4dbc07c54f7a..49c5e9280598 100644
--- a/include/asm-x86_64/pci.h
+++ b/include/asm-x86_64/pci.h
@@ -52,7 +52,7 @@ extern int iommu_setup(char *opt);
52 */ 52 */
53#define PCI_DMA_BUS_IS_PHYS (dma_ops->is_phys) 53#define PCI_DMA_BUS_IS_PHYS (dma_ops->is_phys)
54 54
55#ifdef CONFIG_IOMMU 55#if defined(CONFIG_IOMMU) || defined(CONFIG_CALGARY_IOMMU)
56 56
57/* 57/*
58 * x86-64 always supports DAC, but sometimes it is useful to force 58 * x86-64 always supports DAC, but sometimes it is useful to force
diff --git a/include/asm-x86_64/tce.h b/include/asm-x86_64/tce.h
new file mode 100644
index 000000000000..ee51d31528d6
--- /dev/null
+++ b/include/asm-x86_64/tce.h
@@ -0,0 +1,47 @@
1/*
2 * Copyright (C) 2006 Muli Ben-Yehuda <muli@il.ibm.com>, IBM Corporation
3 * Copyright (C) 2006 Jon Mason <jdmason@us.ibm.com>, IBM Corporation
4 *
5 * This file is derived from asm-powerpc/tce.h.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21
22#ifndef _ASM_X86_64_TCE_H
23#define _ASM_X86_64_TCE_H
24
25extern void* tce_table_kva[];
26extern unsigned int specified_table_size;
27struct iommu_table;
28
29#define TCE_ENTRY_SIZE 8 /* in bytes */
30
31#define TCE_READ_SHIFT 0
32#define TCE_WRITE_SHIFT 1
33#define TCE_HUBID_SHIFT 2 /* unused */
34#define TCE_RSVD_SHIFT 8 /* unused */
35#define TCE_RPN_SHIFT 12
36#define TCE_UNUSED_SHIFT 48 /* unused */
37
38#define TCE_RPN_MASK 0x0000fffffffff000ULL
39
40extern void tce_build(struct iommu_table *tbl, unsigned long index,
41 unsigned int npages, unsigned long uaddr, int direction);
42extern void tce_free(struct iommu_table *tbl, long index, unsigned int npages);
43extern void* alloc_tce_table(void);
44extern void free_tce_table(void *tbl);
45extern int build_tce_table(struct pci_dev *dev, void __iomem *bbar);
46
47#endif /* _ASM_X86_64_TCE_H */