1 /* 2 * This file and its contents are supplied under the terms of the 3 * Common Development and Distribution License ("CDDL"), version 1.0. 4 * You may only use this file in accordance with the terms of version 5 * 1.0 of the CDDL. 6 * 7 * A full copy of the text of the CDDL should have accompanied this 8 * source. A copy of the CDDL is also available via the Internet at 9 * http://www.illumos.org/license/CDDL. 10 */ 11 12 /* 13 * Copyright 2013 (c) Joyent, Inc. All rights reserved. 14 */ 15 16 /* 17 * This file contains various ARM subroutines that are generic across all ARM 18 * platforms. 19 */ 20 21 #include <sys/asm_linkage.h> 22 23 #if defined(__lint) 24 #include <sys/thread.h> 25 #endif /* __lint */ 26 27 #if defined(__lint) 28 29 /* 30 * Return the current kernel thread that's running. Note that this is also 31 * available as an inline function. 32 */ 33 kthread_id_t 34 threadp(void) 35 { return ((kthread_id_t)0); } 36 37 #else /* __lint */ 38 39 ENTRY(threadp) 40 mrc p15, 0, r0, c13, c0, 4 41 bx lr 42 SET_SIZE(threadp) 43 44 #endif /* __lint */ 45 46 #if defined(__lint) 47 48 /* 49 * Subroutine used to spin for a little bit 50 */ 51 52 void 53 arm_smt_pause(void) 54 {} 55 56 #else /* __lint */ 57 58 ENTRY(arm_smt_pause) 59 yield 60 bx lr 61 SET_SIZE(arm_smt_pause) 62 63 #endif /* __lint */ 64 65 ENTRY(getfp) 66 mov r0, r9 67 bx lr 68 SET_SIZE(getfp)