projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 6022e28c JJ |
1 | /** @file\r |
| 2 | CPU DXE MP support\r | |
| 3 | \r | |
| 4 | Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>\r | |
| 5 | 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 | **/\r | |
| 14 | \r | |
| 15 | #ifndef _CPU_MP_H_\r | |
| 16 | #define _CPU_MP_H_\r | |
| 17 | \r | |
| 003973d9 CF |
18 | #include <Protocol/MpService.h>\r |
| 19 | \r | |
| 6022e28c JJ |
20 | /**\r |
| 21 | Initialize Multi-processor support.\r | |
| 22 | \r | |
| 23 | **/\r | |
| 24 | VOID\r | |
| 25 | InitializeMpSupport (\r | |
| 26 | VOID\r | |
| 27 | );\r | |
| 28 | \r | |
| 533263ee JJ |
29 | typedef\r |
| 30 | VOID\r | |
| 31 | (EFIAPI *STACKLESS_AP_ENTRY_POINT)(\r | |
| 32 | VOID\r | |
| 33 | );\r | |
| 34 | \r | |
| 35 | /**\r | |
| 36 | Starts the Application Processors and directs them to jump to the\r | |
| 37 | specified routine.\r | |
| 38 | \r | |
| 39 | The processor jumps to this code in flat mode, but the processor's\r | |
| 40 | stack is not initialized.\r | |
| 41 | \r | |
| 42 | @param ApEntryPoint Pointer to the Entry Point routine\r | |
| 43 | \r | |
| 44 | @retval EFI_SUCCESS The APs were started\r | |
| 45 | @retval EFI_OUT_OF_RESOURCES Cannot allocate memory to start APs\r | |
| 46 | \r | |
| 47 | **/\r | |
| 48 | EFI_STATUS\r | |
| 49 | StartApsStackless (\r | |
| 50 | IN STACKLESS_AP_ENTRY_POINT ApEntryPoint\r | |
| 51 | );\r | |
| 52 | \r | |
| fab82c18 JJ |
53 | /**\r |
| 54 | The AP entry point that the Startup-IPI target code will jump to.\r | |
| 55 | \r | |
| 56 | The processor jumps to this code in flat mode, but the processor's\r | |
| 57 | stack is not initialized.\r | |
| 58 | \r | |
| 59 | **/\r | |
| 60 | VOID\r | |
| 61 | EFIAPI\r | |
| 62 | AsmApEntryPoint (\r | |
| 63 | VOID\r | |
| 64 | );\r | |
| 65 | \r | |
| 66 | /**\r | |
| 67 | Releases the lock preventing other APs from using the shared AP\r | |
| 68 | stack.\r | |
| 69 | \r | |
| 70 | Once the AP has transitioned to using a new stack, it can call this\r | |
| 71 | function to allow another AP to proceed with using the shared stack.\r | |
| 72 | \r | |
| 73 | **/\r | |
| 74 | VOID\r | |
| 75 | EFIAPI\r | |
| 76 | AsmApDoneWithCommonStack (\r | |
| 77 | VOID\r | |
| 78 | );\r | |
| 79 | \r | |
| 6022e28c JJ |
80 | #endif // _CPU_MP_H_\r |
| 81 | \r |