1 /***********************license start***************
2 * Copyright (c) 2003-2010 Cavium Inc. ([email protected]). All rights
3 * reserved.
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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
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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
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25 * regulations, and may be subject to export or import regulations in other
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27
28 * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
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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
53 extern int cvmx_interrupt_in_isr;
54 #else
55 #define cvmx_interrupt_in_isr 0
56 #endif
57
58 #endif
59
60
cvmx_debug_remote_mem_wait_for_resume(volatile cvmx_debug_core_context_t * context,cvmx_debug_state_t state)61 static 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
cvmx_debug_memory_change_core(int oldcore,int newcore)80 static 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
85 cvmx_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