1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. 23 */ 24 25 /* 26 * sun4u common CPC subroutines. 27 */ 28 29 #include <sys/types.h> 30 #include <sys/time.h> 31 #include <sys/atomic.h> 32 #include <sys/thread.h> 33 #include <sys/regset.h> 34 #include <sys/archsystm.h> 35 #include <sys/machsystm.h> 36 #include <sys/cpc_impl.h> 37 #include <sys/cpc_ultra.h> 38 #include <sys/sunddi.h> 39 #include <sys/intr.h> 40 #include <sys/ivintr.h> 41 #include <sys/x_call.h> 42 #include <sys/cpuvar.h> 43 #include <sys/machcpuvar.h> 44 #include <sys/cpc_pcbe.h> 45 #include <sys/modctl.h> 46 #include <sys/sdt.h> 47 #include <sys/kcpc.h> 48 49 uint64_t cpc_level15_inum = 0; /* used in interrupt.s */ 50 int cpc_has_overflow_intr; /* set in cheetah.c */ 51 52 extern kcpc_ctx_t *kcpc_overflow_intr(caddr_t arg, uint64_t bitmap); 53 extern int kcpc_counts_include_idle; 54 55 /* 56 * Called on the boot CPU during startup. 57 */ 58 void 59 kcpc_hw_init(void) 60 { 61 if ((cpc_has_overflow_intr) && (cpc_level15_inum == 0)) { 62 cpc_level15_inum = add_softintr(PIL_15, 63 kcpc_hw_overflow_intr, NULL, SOFTINT_MT); 64 } 65 66 /* 67 * Make sure the boot CPU gets set up. 68 */ 69 kcpc_hw_startup_cpu(CPU->cpu_flags); 70 } 71 72 /* 73 * Prepare for CPC interrupts and install an idle thread CPC context. 74 */ 75 void 76 kcpc_hw_startup_cpu(ushort_t cpflags) 77 { 78 cpu_t *cp = CPU; 79 kthread_t *t = cp->cpu_idle_thread; 80 81 ASSERT(t->t_bound_cpu == cp); 82 83 if (cpc_has_overflow_intr && (cpflags & CPU_FROZEN) == 0) { 84 int pstate_save = disable_vec_intr(); 85 86 ASSERT(cpc_level15_inum != 0); 87 88 intr_enqueue_req(PIL_15, cpc_level15_inum); 89 enable_vec_intr(pstate_save); 90 } 91 92 mutex_init(&cp->cpu_cpc_ctxlock, "cpu_cpc_ctxlock", MUTEX_DEFAULT, 0); 93 94 if (kcpc_counts_include_idle) 95 return; 96 97 installctx(t, cp, kcpc_idle_save, kcpc_idle_restore, NULL, NULL, 98 NULL, NULL); 99 } 100 101 /* 102 * Examine the processor and load an appropriate PCBE. 103 */ 104 int 105 kcpc_hw_load_pcbe(void) 106 { 107 uint64_t ver = ultra_getver(); 108 109 return (kcpc_pcbe_tryload(NULL, ULTRA_VER_MANUF(ver), 110 ULTRA_VER_IMPL(ver), ULTRA_VER_MASK(ver))); 111 } 112 113 /*ARGSUSED*/ 114 int 115 kcpc_hw_cpu_hook(processorid_t cpuid, ulong_t *kcpc_cpumap) 116 { 117 return (0); 118 } 119 120 int 121 kcpc_hw_lwp_hook(void) 122 { 123 return (0); 124 } 125