projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 1bc83266 | 1 | //\r |
| 51ad04cb | 2 | // Copyright (c) 2012-2014, ARM Limited. All rights reserved.\r |
| 1bc83266 | 3 | //\r |
| f4dfad05 | 4 | // SPDX-License-Identifier: BSD-2-Clause-Patent\r |
| 1bc83266 HL |
5 | //\r |
| 6 | //\r | |
| 7 | \r | |
| 51ad04cb | 8 | #include <AsmMacroIoLibV8.h>\r |
| 1bc83266 HL |
9 | \r |
| 10 | //VOID\r | |
| 11 | //ArmPlatformStackSet (\r | |
| 12 | // IN UINTN StackBase,\r | |
| 13 | // IN UINTN MpId,\r | |
| 14 | // IN UINTN PrimaryStackSize,\r | |
| 15 | // IN UINTN SecondaryStackSize\r | |
| 16 | // );\r | |
| 92605930 | 17 | ASM_FUNC(ArmPlatformStackSet)\r |
| 1bc83266 | 18 | // Save parameters\r |
| 91231b55 AB |
19 | mov x26, x3\r |
| 20 | mov x25, x2\r | |
| 21 | mov x24, x1\r | |
| 22 | mov x23, x0\r | |
| 1bc83266 HL |
23 | \r |
| 24 | // Save the Link register\r | |
| 91231b55 | 25 | mov x27, x30\r |
| 1bc83266 HL |
26 | \r |
| 27 | // Identify Stack\r | |
| 28 | mov x0, x1\r | |
| 29 | bl ASM_PFX(ArmPlatformIsPrimaryCore)\r | |
| 30 | cmp x0, #1\r | |
| 31 | \r | |
| 32 | // Restore parameters\r | |
| 91231b55 AB |
33 | mov x0, x23\r |
| 34 | mov x1, x24\r | |
| 35 | mov x2, x25\r | |
| 36 | mov x3, x26\r | |
| 1bc83266 HL |
37 | \r |
| 38 | // Restore the Link register\r | |
| 91231b55 | 39 | mov x30, x27\r |
| 1bc83266 | 40 | \r |
| 92605930 AB |
41 | b.ne 0f\r |
| 42 | \r | |
| 43 | b ASM_PFX(ArmPlatformStackSetPrimary)\r | |
| 44 | 0:b ASM_PFX(ArmPlatformStackSetSecondary)\r | |
| 1bc83266 HL |
45 | \r |
| 46 | //VOID\r | |
| 47 | //ArmPlatformStackSetPrimary (\r | |
| 48 | // IN UINTN StackBase,\r | |
| 49 | // IN UINTN MpId,\r | |
| 50 | // IN UINTN PrimaryStackSize,\r | |
| 51 | // IN UINTN SecondaryStackSize\r | |
| 52 | // );\r | |
| 92605930 | 53 | ASM_FUNC(ArmPlatformStackSetPrimary)\r |
| 91231b55 | 54 | // Add size of primary stack to StackBase\r |
| 1bc83266 HL |
55 | add x0, x0, x2\r |
| 56 | \r | |
| 57 | // Compute SecondaryCoresCount * SecondaryCoreStackSize\r | |
| 92605930 | 58 | MOV32 (w1, FixedPcdGet32(PcdCoreCount) - 1)\r |
| 1bc83266 HL |
59 | mul x3, x3, x1\r |
| 60 | \r | |
| 61 | // Set Primary Stack ((StackBase + PrimaryStackSize) + (SecondaryCoresCount * SecondaryCoreStackSize))\r | |
| 62 | add sp, x0, x3\r | |
| 63 | \r | |
| 91231b55 | 64 | ret\r |
| 1bc83266 HL |
65 | \r |
| 66 | //VOID\r | |
| 67 | //ArmPlatformStackSetSecondary (\r | |
| 68 | // IN UINTN StackBase,\r | |
| 69 | // IN UINTN MpId,\r | |
| 70 | // IN UINTN PrimaryStackSize,\r | |
| 71 | // IN UINTN SecondaryStackSize\r | |
| 72 | // );\r | |
| 92605930 | 73 | ASM_FUNC(ArmPlatformStackSetSecondary)\r |
| 1bc83266 | 74 | // Save the Link register\r |
| 91231b55 | 75 | mov x24, x30\r |
| 1bc83266 HL |
76 | mov sp, x0\r |
| 77 | \r | |
| 78 | // Get Core Position\r | |
| 79 | mov x0, x1\r | |
| 80 | bl ASM_PFX(ArmPlatformGetCorePosition)\r | |
| 91231b55 | 81 | mov x25, x0\r |
| 1bc83266 HL |
82 | \r |
| 83 | // Get Primary Core Position\r | |
| 84 | bl ASM_PFX(ArmPlatformGetPrimaryCoreMpId)\r | |
| 85 | bl ASM_PFX(ArmPlatformGetCorePosition)\r | |
| 86 | \r | |
| 87 | // Get Secondary Core Position. We should get consecutive secondary stack number from 1...(CoreCount-1)\r | |
| 91231b55 AB |
88 | cmp x25, x0\r |
| 89 | \r | |
| 1bc83266 | 90 | // Decrement the position if after the primary core\r |
| 91231b55 | 91 | cinc x25, x25, ls\r |
| 1bc83266 HL |
92 | \r |
| 93 | // Compute top of the secondary stack\r | |
| 91231b55 | 94 | mul x3, x3, x25\r |
| 1bc83266 HL |
95 | \r |
| 96 | // Set stack\r | |
| 97 | add sp, sp, x3\r | |
| 98 | \r | |
| 91231b55 | 99 | ret x24\r |