diff options
Diffstat (limited to 'include/linux/dma_remapping.h')
-rw-r--r-- | include/linux/dma_remapping.h | 38 |
1 files changed, 0 insertions, 38 deletions
diff --git a/include/linux/dma_remapping.h b/include/linux/dma_remapping.h index d8521662a49..9a88f7d0262 100644 --- a/include/linux/dma_remapping.h +++ b/include/linux/dma_remapping.h | |||
@@ -12,44 +12,6 @@ | |||
12 | struct root_entry; | 12 | struct root_entry; |
13 | 13 | ||
14 | /* | 14 | /* |
15 | * low 64 bits: | ||
16 | * 0: present | ||
17 | * 1: fault processing disable | ||
18 | * 2-3: translation type | ||
19 | * 12-63: address space root | ||
20 | * high 64 bits: | ||
21 | * 0-2: address width | ||
22 | * 3-6: aval | ||
23 | * 8-23: domain id | ||
24 | */ | ||
25 | struct context_entry { | ||
26 | u64 lo; | ||
27 | u64 hi; | ||
28 | }; | ||
29 | #define context_present(c) ((c).lo & 1) | ||
30 | #define context_fault_disable(c) (((c).lo >> 1) & 1) | ||
31 | #define context_translation_type(c) (((c).lo >> 2) & 3) | ||
32 | #define context_address_root(c) ((c).lo & VTD_PAGE_MASK) | ||
33 | #define context_address_width(c) ((c).hi & 7) | ||
34 | #define context_domain_id(c) (((c).hi >> 8) & ((1 << 16) - 1)) | ||
35 | |||
36 | #define context_set_present(c) do {(c).lo |= 1;} while (0) | ||
37 | #define context_set_fault_enable(c) \ | ||
38 | do {(c).lo &= (((u64)-1) << 2) | 1;} while (0) | ||
39 | #define context_set_translation_type(c, val) \ | ||
40 | do { \ | ||
41 | (c).lo &= (((u64)-1) << 4) | 3; \ | ||
42 | (c).lo |= ((val) & 3) << 2; \ | ||
43 | } while (0) | ||
44 | #define CONTEXT_TT_MULTI_LEVEL 0 | ||
45 | #define context_set_address_root(c, val) \ | ||
46 | do {(c).lo |= (val) & VTD_PAGE_MASK; } while (0) | ||
47 | #define context_set_address_width(c, val) do {(c).hi |= (val) & 7;} while (0) | ||
48 | #define context_set_domain_id(c, val) \ | ||
49 | do {(c).hi |= ((val) & ((1 << 16) - 1)) << 8;} while (0) | ||
50 | #define context_clear_entry(c) do {(c).lo = 0; (c).hi = 0;} while (0) | ||
51 | |||
52 | /* | ||
53 | * 0: readable | 15 | * 0: readable |
54 | * 1: writable | 16 | * 1: writable |
55 | * 2-6: reserved | 17 | * 2-6: reserved |