1 /*- 2 * Copyright (c) 2005, Joseph Koshy 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 */ 27 28 #include <sys/cdefs.h> 29 __FBSDID("$FreeBSD$"); 30 31 #include <sys/param.h> 32 #include <sys/pmc.h> 33 #include <sys/systm.h> 34 35 #include <machine/pmc_mdep.h> 36 #include <machine/md_var.h> 37 38 struct pmc_mdep * 39 pmc_md_initialize() 40 { 41 #ifdef CPU_XSCALE_IXP425 42 if (cpu_class == CPU_CLASS_XSCALE) 43 return pmc_xscale_initialize(); 44 else 45 #endif 46 return NULL; 47 } 48 49 void 50 pmc_md_finalize(struct pmc_mdep *md) 51 { 52 #ifdef CPU_XSCALE_IXP425 53 if (cpu_class == CPU_CLASS_XSCALE) 54 pmc_xscale_finalize(md); 55 else 56 KASSERT(0, ("[arm,%d] Unknown CPU Class 0x%x", __LINE__, 57 cpu_class)); 58 #endif 59 } 60 61 static int 62 pmc_save_callchain(uintptr_t *cc, int maxsamples, 63 struct trapframe *tf) 64 { 65 66 *cc = PMC_TRAPFRAME_TO_PC(tf); 67 return (1); 68 } 69 70 int 71 pmc_save_kernel_callchain(uintptr_t *cc, int maxsamples, 72 struct trapframe *tf) 73 { 74 75 return pmc_save_callchain(cc, maxsamples, tf); 76 } 77 78 int 79 pmc_save_user_callchain(uintptr_t *cc, int maxsamples, 80 struct trapframe *tf) 81 { 82 83 return pmc_save_callchain(cc, maxsamples, tf); 84 } 85