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comparison MasterLoop.c @ 75:f6990e1ba998

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author Merten Sach <msach@mailbox.tu-berlin.de>
date Thu, 02 Jun 2011 13:55:51 +0200
parents 11bfe9d136ed
children fe5ec83f1baf
comparison
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21:da2284d25a80 23:a1782f1a475e
8 8
9 #include <stdio.h> 9 #include <stdio.h>
10 #include <stddef.h> 10 #include <stddef.h>
11 11
12 #include "VMS.h" 12 #include "VMS.h"
13 #include "SwitchAnimators.h"
13 14
14 15
15 //=========================================================================== 16 //===========================================================================
16 void inline 17 void inline
17 stealWorkInto( SchedSlot *currSlot, VMSQueueStruc *readyToAnimateQ, 18 stealWorkInto( SchedSlot *currSlot, VMSQueueStruc *readyToAnimateQ,
91 92
92 //First animation of each MasterVP will in turn animate this part 93 //First animation of each MasterVP will in turn animate this part
93 // of setup code.. (VP creator sets up the stack as if this function 94 // of setup code.. (VP creator sets up the stack as if this function
94 // was called normally, but actually get here by jmp) 95 // was called normally, but actually get here by jmp)
95 //So, setup values about stack ptr, jmp pt and all that 96 //So, setup values about stack ptr, jmp pt and all that
96 masterPr->nextInstrPt = &&masterLoopStartPt; 97 //masterPr->nextInstrPt = &&masterLoopStartPt;
97 98
98 99
99 //Note, got rid of writing the stack and frame ptr up here, because 100 //Note, got rid of writing the stack and frame ptr up here, because
100 // only one 101 // only one
101 // core can ever animate a given MasterVP, so don't need to communicate 102 // core can ever animate a given MasterVP, so don't need to communicate
102 // new frame and stack ptr to the MasterVP storage before a second 103 // new frame and stack ptr to the MasterVP storage before a second
103 // version of that MasterVP can get animated on a different core. 104 // version of that MasterVP can get animated on a different core.
104 //Also got rid of the busy-wait. 105 //Also got rid of the busy-wait.
105 106
106 107
107 masterLoopStartPt: 108 //masterLoopStartPt:
109 while(1){
110
108 //============================= MEASUREMENT STUFF ======================== 111 //============================= MEASUREMENT STUFF ========================
109 #ifdef MEAS__TIME_MASTER 112 #ifdef MEAS__TIME_MASTER
110 //Total Master time includes one coreloop time -- just assume the core 113 //Total Master time includes one coreloop time -- just assume the core
111 // loop time is same for Master as for AppVPs, even though it may be 114 // loop time is same for Master as for AppVPs, even though it may be
112 // smaller due to higher predictability of the fixed jmp. 115 // smaller due to higher predictability of the fixed jmp.
183 186
184 #ifdef MEAS__TIME_MASTER 187 #ifdef MEAS__TIME_MASTER
185 saveLowTimeStampCountInto( masterPr->endMasterTSCLow ); 188 saveLowTimeStampCountInto( masterPr->endMasterTSCLow );
186 #endif 189 #endif
187 190
188 191 masterSwitchToCoreLoop(animatingPr);
189 192 flushRegisters();
190 /* VirtProcr offsets: 193 }//MasterLoop
191 * 0xc stackPtr 194
192 * 0x10 framePtr
193 * 0x14 nextInstrPt
194 * 0x1c coreLoopFramePtr
195 * 0x20 coreLoopStackPtr
196 *
197 * _VMSMasterEnv offsets:
198 * 0x24 coreLoopStartPt
199 * 0x28 coreLoopEndPt
200 * 0x30 masterLock
201 */
202 // masterSwitchToCoreLoop( masterPr )
203 asm volatile("movl %0, %%ebx; \
204 movl %1, %%ecx; \
205 movl %%esp, 0x0c(%%ecx); \
206 movl %%ebp, 0x10(%%ecx); \
207 movl 0x24(%%ebx), %%eax; \
208 movl 0x20(%%ecx), %%esp; \
209 movl 0x1c(%%ecx), %%ebp; \
210 movl $0x0, 0x30(%%ebx); \
211 jmp %%eax" \
212 /* outputs */ : \
213 /* inputs */ : "g"(_VMSMasterEnv), "g"(masterPr) \
214 /* clobber */ : "memory", "%eax", "%ebx", "%ecx", "%edx", "%edi", "%esi" \
215 );
216 195
217 } 196 }
218 197
219 198
220 199