1/***********************license start*************** 2 * Copyright (c) 2003-2010 Cavium Inc. (support@cavium.com). All rights 3 * reserved. 4 * 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are 8 * met: 9 * 10 * * Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 13 * * Redistributions in binary form must reproduce the above 14 * copyright notice, this list of conditions and the following 15 * disclaimer in the documentation and/or other materials provided 16 * with the distribution. 17 18 * * Neither the name of Cavium Inc. nor the names of 19 * its contributors may be used to endorse or promote products 20 * derived from this software without specific prior written 21 * permission. 22 23 * This Software, including technical data, may be subject to U.S. export control 24 * laws, including the U.S. Export Administration Act and its associated 25 * regulations, and may be subject to export or import regulations in other 26 * countries. 27 28 * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS" 29 * AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR 30 * WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO 31 * THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR 32 * DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM 33 * SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE, 34 * MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF 35 * VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR 36 * CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR 37 * PERFORMANCE OF THE SOFTWARE LIES WITH YOU. 38 ***********************license end**************************************/ 39 40 41#ifdef CVMX_BUILD_FOR_LINUX_KERNEL 42#include <linux/module.h> 43#include <asm/octeon/cvmx.h> 44#include <asm/octeon/cvmx-debug.h> 45 46#define cvmx_interrupt_in_isr 0 47 48#else 49#include "cvmx.h" 50#include "cvmx-debug.h" 51 52#ifndef CVMX_BUILD_FOR_TOOLCHAIN 53extern int cvmx_interrupt_in_isr; 54#else 55#define cvmx_interrupt_in_isr 0 56#endif 57 58#endif 59 60 61static void cvmx_debug_remote_mem_wait_for_resume(volatile cvmx_debug_core_context_t *context, cvmx_debug_state_t state) 62{ 63 // 64 // If we are stepping and not stepping into an interrupt and the debug 65 // exception happened in an interrupt, continue the execution. 66 // 67 if(!state.step_isr && 68 (context->cop0.debug & 0x1) && /* Single stepping */ 69 !(context->cop0.debug & 0x1e) && /* Did not hit a breakpoint */ 70 ((context->cop0.status & 0x2) || cvmx_interrupt_in_isr)) 71 return; 72 73 context->remote_controlled = 1; 74 CVMX_SYNCW; 75 while (context->remote_controlled) 76 ; 77 CVMX_SYNCW; 78} 79 80static void cvmx_debug_memory_change_core(int oldcore, int newcore) 81{ 82 /* FIXME, this should change the core on the host side too. */ 83} 84 85cvmx_debug_comm_t cvmx_debug_remote_comm = 86{ 87 .init = NULL, 88 .install_break_handler = NULL, 89 .needs_proxy = 0, 90 .getpacket = NULL, 91 .putpacket = NULL, 92 .wait_for_resume = cvmx_debug_remote_mem_wait_for_resume, 93 .change_core = cvmx_debug_memory_change_core, 94}; 95