1/* 2 * Copyright (c) 2003-2012 Apple Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28 29#include <machine/cpu_capabilities.h> 30#include <machine/commpage.h> 31#include <machine/asm.h> 32#include <assym.s> 33 34/* 35 * extern void commpage_sched_gen_inc(void); 36 */ 37 .text 38 39 .globl _commpage_sched_gen_inc 40_commpage_sched_gen_inc: 41 FRAME 42 43 /* Increment 32-bit commpage field if present */ 44 movq _commPagePtr32(%rip),%rdx 45 testq %rdx,%rdx 46 je 1f 47 subq $(ASM_COMM_PAGE32_BASE_ADDRESS),%rdx 48 lock 49 incl ASM_COMM_PAGE_SCHED_GEN(%rdx) 50 51 /* Increment 64-bit commpage field if present */ 52 movq _commPagePtr64(%rip),%rdx 53 testq %rdx,%rdx 54 je 1f 55 subq $(ASM_COMM_PAGE32_START_ADDRESS),%rdx 56 lock 57 incl ASM_COMM_PAGE_SCHED_GEN(%rdx) 581: 59 EMARF 60 ret 61 62/* pointers to the 32-bit commpage routine descriptors */ 63/* WARNING: these must be sorted by commpage address! */ 64 .const_data 65 .align 3 66 .globl _commpage_32_routines 67_commpage_32_routines: 68 COMMPAGE_DESCRIPTOR_REFERENCE(preempt) 69 COMMPAGE_DESCRIPTOR_REFERENCE(backoff) 70 COMMPAGE_DESCRIPTOR_REFERENCE(pfz_enqueue) 71 COMMPAGE_DESCRIPTOR_REFERENCE(pfz_dequeue) 72 .quad 0 73 74 75/* pointers to the 64-bit commpage routine descriptors */ 76/* WARNING: these must be sorted by commpage address! */ 77 .const_data 78 .align 3 79 .globl _commpage_64_routines 80_commpage_64_routines: 81 COMMPAGE_DESCRIPTOR_REFERENCE(preempt_64) 82 COMMPAGE_DESCRIPTOR_REFERENCE(backoff_64) 83 COMMPAGE_DESCRIPTOR_REFERENCE(pfz_enqueue_64) 84 COMMPAGE_DESCRIPTOR_REFERENCE(pfz_dequeue_64) 85 .quad 0 86 87