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7b414b4e | 1 | /// @file\r |
2 | /// This is set of macros used in calculating offsets in the IVT.\r | |
3 | ///\r | |
4 | /// Copyright (c) 2006, Intel Corporation\r | |
5 | /// All rights reserved. This program and the accompanying materials\r | |
6 | /// are licensed and made available under the terms and conditions of the BSD License\r | |
7 | /// which accompanies this distribution. The full text of the license may be found at\r | |
8 | /// http://opensource.org/licenses/bsd-license.php\r | |
9 | ///\r | |
10 | /// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | /// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | ///\r | |
13 | /// Module Name: Ds64Macros.i\r | |
14 | ///\r | |
15 | ///\r | |
16 | \r | |
c1f23d63 | 17 | \r |
18 | #define EXCPT_EXTERNAL_INTERRUPT 12\r | |
19 | #define MASK_0_4 0x000000000000001F // mask bits 0 through 4\r | |
20 | #define SLOT0 0\r | |
21 | #define SLOT1 1\r | |
22 | #define SLOT2 2\r | |
23 | \r | |
24 | #define PSR_DT 17\r | |
25 | #define PSR_TB 26\r | |
26 | #define PSR_RT 27\r | |
27 | #define PSR_IS 34\r | |
28 | #define PSR_IT 36\r | |
29 | #define PSR_IC 13\r | |
30 | #define PSR_I 14\r | |
31 | #define PSR_SS 40\r | |
32 | #define PSR_BN 44\r | |
33 | #define PSR_RI_MASK 0x60000000000\r | |
34 | \r | |
35 | #define EXCPT_EXTERNAL_INTERRUPT 12\r | |
36 | \r | |
37 | #define SCRATCH_REG0 r23\r | |
38 | #define SCRATCH_REG1 r24\r | |
39 | #define SCRATCH_REG2 r25\r | |
40 | #define SCRATCH_REG3 r26\r | |
41 | #define SCRATCH_REG4 r27\r | |
42 | #define SCRATCH_REG5 r28\r | |
43 | #define SCRATCH_REG6 r29\r | |
44 | #define PR_REG r30\r | |
45 | #define B0_REG r31\r | |
46 | \r | |
47 | \r | |
48 | // EXT_INT_OFFSET is the offset of the external interrupt entry in the IVT\r | |
49 | #define EXT_INT_ENTRY_OFFSET 0x03000\r | |
50 | \r | |
51 | // PATCH_ENTRY_OFFSET is the offset into the IVT of the entry that is coopted (stolen)\r | |
52 | // for use by the handler. The entire entry is restored when the handler is\r | |
53 | // unloaded.\r | |
54 | #define PATCH_ENTRY_OFFSET 0x03400\r | |
55 | \r | |
56 | // PATCH_BUNDLES is the number of bundles actually in the patch\r | |
57 | #define NUM_PATCH_BUNDLES ((EndPatchCode - PatchCode) / 0x10)\r | |
58 | \r | |
59 | // A hard coded branch back into the external interrupt IVT entry's second bundle\r | |
60 | // is put here, just in case the original bundle zero did not have a branch\r | |
61 | // This is the last bundle in the reserved IVT entry\r | |
62 | #define FAILSAFE_BRANCH_OFFSET (PATCH_ENTRY_OFFSET + 0x400 - 0x10)\r | |
63 | \r | |
64 | // the original external interrupt IVT entry bundle zero is copied and relocated\r | |
65 | // here... also in the reserved IVT entry\r | |
66 | // This is the second-to-last bundle in the reserved IVT entry\r | |
67 | #define RELOCATED_EXT_INT (PATCH_ENTRY_OFFSET + 0x400 - 0x20)\r | |
68 | \r | |
69 | // The patch is actually stored at the end of IVT:PATCH_ENTRY. The PATCH_OFFSET\r | |
70 | // is the offset into IVT where the patch is actually stored. It is carefully\r | |
71 | // located so that when we run out of patch code, the next bundle is the\r | |
72 | // relocated bundle 0 from the original external interrupt handler\r | |
73 | #define PATCH_OFFSET (PATCH_ENTRY_OFFSET + 0x400 - ( EndPatchCode - PatchCode ) - 0x20)\r | |
74 | \r | |
75 | #define PATCH_RETURN_OFFSET (PATCH_ENTRY_OFFSET + 0x400 - ( EndPatchCode - PatchCodeRet ) - 0x20)\r | |
76 | \r | |
77 | // PATCH_BRANCH is used only in the new bundle that is placed at the beginning\r | |
78 | // of the external interrupt IVT entry.\r | |
79 | #define PATCH_BRANCH (PATCH_OFFSET - EXT_INT_ENTRY_OFFSET)\r | |
80 | \r |