| 1 | // SPDX-License-Identifier: GPL-2.0-only |
|---|---|
| 2 | /* |
| 3 | * Copyright 2004 James Cleverdon, IBM. |
| 4 | * |
| 5 | * Generic APIC sub-arch probe layer. |
| 6 | * |
| 7 | * Hacked for x86-64 by James Cleverdon from i386 architecture code by |
| 8 | * Martin Bligh, Andi Kleen, James Bottomley, John Stultz, and |
| 9 | * James Cleverdon. |
| 10 | */ |
| 11 | #include <linux/thread_info.h> |
| 12 | #include <asm/apic.h> |
| 13 | |
| 14 | #include "local.h" |
| 15 | |
| 16 | /* Select the appropriate APIC driver */ |
| 17 | void __init x86_64_probe_apic(void) |
| 18 | { |
| 19 | struct apic **drv; |
| 20 | |
| 21 | enable_IR_x2apic(); |
| 22 | |
| 23 | for (drv = __apicdrivers; drv < __apicdrivers_end; drv++) { |
| 24 | if ((*drv)->probe && (*drv)->probe()) { |
| 25 | apic_install_driver(driver: *drv); |
| 26 | break; |
| 27 | } |
| 28 | } |
| 29 | } |
| 30 | |
| 31 | int __init default_acpi_madt_oem_check(char *oem_id, char *oem_table_id) |
| 32 | { |
| 33 | struct apic **drv; |
| 34 | |
| 35 | for (drv = __apicdrivers; drv < __apicdrivers_end; drv++) { |
| 36 | if ((*drv)->acpi_madt_oem_check(oem_id, oem_table_id)) { |
| 37 | apic_install_driver(driver: *drv); |
| 38 | return 1; |
| 39 | } |
| 40 | } |
| 41 | return 0; |
| 42 | } |
| 43 |