| Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| H. Peter Anvin | 1965aae | 2008-10-22 22:26:29 -0700 | [diff] [blame] | 2 | #ifndef _ASM_X86_SWIOTLB_H |
| 3 | #define _ASM_X86_SWIOTLB_H |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4 | |
| FUJITA Tomonori | 1da4f98 | 2008-12-28 15:02:05 +0900 | [diff] [blame] | 5 | #include <linux/swiotlb.h> |
| Muli Ben-Yehuda | 17a941d | 2006-01-11 22:44:42 +0100 | [diff] [blame] | 6 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | #ifdef CONFIG_SWIOTLB |
| 8 | extern int swiotlb; |
| Konrad Rzeszutek Wilk | efa631c | 2010-08-26 13:57:59 -0400 | [diff] [blame] | 9 | extern int __init pci_swiotlb_detect_override(void); |
| 10 | extern int __init pci_swiotlb_detect_4gb(void); |
| FUJITA Tomonori | 186a250 | 2009-12-15 20:47:56 +0900 | [diff] [blame] | 11 | extern void __init pci_swiotlb_init(void); |
| Konrad Rzeszutek Wilk | efa631c | 2010-08-26 13:57:59 -0400 | [diff] [blame] | 12 | extern void __init pci_swiotlb_late_init(void); |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | #else |
| 14 | #define swiotlb 0 |
| Konrad Rzeszutek Wilk | efa631c | 2010-08-26 13:57:59 -0400 | [diff] [blame] | 15 | static inline int pci_swiotlb_detect_override(void) |
| 16 | { |
| 17 | return 0; |
| 18 | } |
| 19 | static inline int pci_swiotlb_detect_4gb(void) |
| FUJITA Tomonori | be54f9d | 2008-07-11 10:23:45 +0900 | [diff] [blame] | 20 | { |
| FUJITA Tomonori | b18485e | 2009-11-12 00:03:28 +0900 | [diff] [blame] | 21 | return 0; |
| FUJITA Tomonori | be54f9d | 2008-07-11 10:23:45 +0900 | [diff] [blame] | 22 | } |
| FUJITA Tomonori | 186a250 | 2009-12-15 20:47:56 +0900 | [diff] [blame] | 23 | static inline void pci_swiotlb_init(void) |
| 24 | { |
| 25 | } |
| Konrad Rzeszutek Wilk | efa631c | 2010-08-26 13:57:59 -0400 | [diff] [blame] | 26 | static inline void pci_swiotlb_late_init(void) |
| 27 | { |
| 28 | } |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 29 | #endif |
| H. Peter Anvin | 1965aae | 2008-10-22 22:26:29 -0700 | [diff] [blame] | 30 | #endif /* _ASM_X86_SWIOTLB_H */ |