| 1 | /* |
| 2 | * ========== Copyright Header Begin ========================================== |
| 3 | * |
| 4 | * Hypervisor Software File: strand.h |
| 5 | * |
| 6 | * Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. |
| 7 | * |
| 8 | * - Do no alter or remove copyright notices |
| 9 | * |
| 10 | * - Redistribution and use of this software in source and binary forms, with |
| 11 | * or without modification, are permitted provided that the following |
| 12 | * conditions are met: |
| 13 | * |
| 14 | * - Redistribution of source code must retain the above copyright notice, |
| 15 | * this list of conditions and the following disclaimer. |
| 16 | * |
| 17 | * - Redistribution in binary form must reproduce the above copyright notice, |
| 18 | * this list of conditions and the following disclaimer in the |
| 19 | * documentation and/or other materials provided with the distribution. |
| 20 | * |
| 21 | * Neither the name of Sun Microsystems, Inc. or the names of contributors |
| 22 | * may be used to endorse or promote products derived from this software |
| 23 | * without specific prior written permission. |
| 24 | * |
| 25 | * This software is provided "AS IS," without a warranty of any kind. |
| 26 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, |
| 27 | * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A |
| 28 | * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN |
| 29 | * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR |
| 30 | * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR |
| 31 | * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN |
| 32 | * OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR |
| 33 | * FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE |
| 34 | * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, |
| 35 | * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF |
| 36 | * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. |
| 37 | * |
| 38 | * You acknowledge that this software is not designed, licensed or |
| 39 | * intended for use in the design, construction, operation or maintenance of |
| 40 | * any nuclear facility. |
| 41 | * |
| 42 | * ========== Copyright Header End ============================================ |
| 43 | */ |
| 44 | /* |
| 45 | * Copyright 2007 Sun Microsystems, Inc. All rights reserved. |
| 46 | * Use is subject to license terms. |
| 47 | */ |
| 48 | |
| 49 | #ifndef _PLATFORM_STRAND_H |
| 50 | #define _PLATFORM_STRAND_H |
| 51 | |
| 52 | #pragma ident "@(#)strand.h 1.22 07/05/03 SMI" |
| 53 | |
| 54 | #include <sun4v/errs_defs.h> |
| 55 | #include <cpu_errs_defs.h> |
| 56 | |
| 57 | #ifdef __cplusplus |
| 58 | extern "C" { |
| 59 | #endif |
| 60 | |
| 61 | #include <sun4v/errs_defs.h> |
| 62 | #include <cpu_errs.h> |
| 63 | #include <cpu_errs_defs.h> |
| 64 | |
| 65 | #ifndef _ASM |
| 66 | /* |
| 67 | * Structures for saving watchdog failure state |
| 68 | */ |
| 69 | struct trapstate { |
| 70 | uint64_t htstate; |
| 71 | uint64_t tstate; |
| 72 | uint64_t tt; |
| 73 | uint64_t tpc; |
| 74 | uint64_t tnpc; |
| 75 | }; |
| 76 | |
| 77 | struct trapglobals { |
| 78 | uint64_t g[8]; |
| 79 | }; |
| 80 | |
| 81 | #if NSTRANDS > 256 |
| 82 | error The strand id field is encoded in an 8bit value |
| 83 | error for more than 256 strands this needs to have its type changed |
| 84 | #endif |
| 85 | |
| 86 | struct strand { |
| 87 | uint8_t id; /* physical strand number */ |
| 88 | struct config *configp; |
| 89 | |
| 90 | /* |
| 91 | * This list is used to assign work to this strand. |
| 92 | * The current_slot points to the slot action in progress |
| 93 | * We only allow the local strand to manipulate its slots |
| 94 | * which means (along as interrupts are off) we've no need |
| 95 | * for locks around this structure. |
| 96 | */ |
| 97 | uint16_t current_slot; |
| 98 | struct sched_slot slot[NUM_SCHED_SLOTS]; |
| 99 | |
| 100 | /* |
| 101 | * This is the HV strand X-Call mailbox. |
| 102 | * This should evolve into an LDC channel with endpoints between |
| 103 | * each of the strands (a N*N matrix) and a mondo queue indicating |
| 104 | * which incomming endpoints need servicing, but that happens when |
| 105 | * we assign guest0 as the HV's context - later. |
| 106 | */ |
| 107 | struct xcall_mbox xc_mb; |
| 108 | uint64_t hv_txmondo[8]; |
| 109 | uint64_t hv_rxmondo[8]; |
| 110 | |
| 111 | /* |
| 112 | * Initialisation support .. FIXME .. we could use scratch |
| 113 | * values instead as these are only used at the beginning of time |
| 114 | */ |
| 115 | uint64_t scrub_basepa; |
| 116 | uint64_t scrub_size; |
| 117 | |
| 118 | /* |
| 119 | * The mini-stack used for the PUSH & POP macros. |
| 120 | */ |
| 121 | struct mini_stack mini_stack; |
| 122 | |
| 123 | uint64_t scr[NSTRANDSCRATCH]; /* scratch space */ |
| 124 | |
| 125 | /* |
| 126 | * hstick interrupt support |
| 127 | */ |
| 128 | struct cyclic cyclic; |
| 129 | |
| 130 | /* |
| 131 | * Error handling support |
| 132 | */ |
| 133 | |
| 134 | /* |
| 135 | * support for when we get a UE with TSTATE.GL == GL |
| 136 | */ |
| 137 | uint64_t ue_tmp1; |
| 138 | uint64_t ue_tmp2; |
| 139 | struct trapglobals ue_globals[MAXTL]; |
| 140 | uint64_t err_seq_no; /* unique sequence # */ |
| 141 | uint64_t regerr; /* SPARC ESR for IRC/FRC */ |
| 142 | int16_t l2_bank; /* l2 bank */ |
| 143 | int16_t rpt_flags; /* Report flags: action, buf */ |
| 144 | int16_t wip; /* flag: Work In Progress */ |
| 145 | uint32_t err_flag; /* error handling flags */ |
| 146 | uint64_t err_poll_tick; /* poll time in ticks */ |
| 147 | uint64_t err_ret; /* saved return address */ |
| 148 | uint64_t err_poll_itt; /* saved interrupt tick time */ |
| 149 | uint64_t err_poll_ret; /* saved return address */ |
| 150 | uint64_t err_sparc_afsr; /* tmp store */ |
| 151 | uint64_t err_sparc_afar; /* tmp store */ |
| 152 | uint64_t l2_line_state; /* state of line on err */ |
| 153 | struct strand_erpt ce_rpt; /* CE error buffer */ |
| 154 | struct strand_erpt ue_rpt; /* UE error buffer */ |
| 155 | uint64_t io_prot; /* i/o error protection flag */ |
| 156 | uint64_t io_error; /* i/o error flag */ |
| 157 | uint64_t nrpending; /* pending non-resumable on this CPU */ |
| 158 | uint64_t rerouted_ehdl; /* EHDL rerouted to this CPU */ |
| 159 | uint64_t rerouted_addr; /* PA rerouted to this CPU */ |
| 160 | uint64_t rerouted_stick; /* %stick rerouted to this CPU */ |
| 161 | uint64_t rerouted_attr; /* ATTR rerouted to this CPU */ |
| 162 | uint64_t abort_pc; /* %pc of hvabort caller */ |
| 163 | |
| 164 | /* |
| 165 | * Saved failure state |
| 166 | */ |
| 167 | uint64_t fail_tl; |
| 168 | uint64_t fail_gl; |
| 169 | |
| 170 | struct trapstate trapstate[MAXTL]; |
| 171 | struct trapglobals trapglobals[MAXGL]; |
| 172 | |
| 173 | /* |
| 174 | * This is the real stack used for the C environment |
| 175 | */ |
| 176 | uint64_t strand_stack[STRAND_STACK_SIZE / sizeof (uint64_t)]; |
| 177 | }; |
| 178 | |
| 179 | extern strand_t strands[]; |
| 180 | |
| 181 | #endif /* !_ASM */ |
| 182 | |
| 183 | #ifdef __cplusplus |
| 184 | } |
| 185 | #endif |
| 186 | |
| 187 | #endif /* _PLATFORM_STRAND_H */ |