144 lines
4.1 KiB
C
144 lines
4.1 KiB
C
/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "mvOs.h"
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#include "mvCpuL2Cntrs.h"
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MV_CPU_L2_CNTRS_ENTRY mvCpuL2CntrsTbl[MV_CPU_L2_CNTRS_NUM];
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MV_CPU_L2_CNTRS_EVENT* mvCpuL2CntrsEventTbl[128];
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void mvCpuL2CntrsReset(void)
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{
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MV_U32 reg = 0;
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MV_ASM ("mcr p15, 6, %0, c15, c13, 0" : : "r" (reg));
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MV_ASM ("mcr p15, 6, %0, c15, c13, 1" : : "r" (reg));
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MV_ASM ("mcr p15, 6, %0, c15, c13, 2" : : "r" (reg));
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MV_ASM ("mcr p15, 6, %0, c15, c13, 3" : : "r" (reg));
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}
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static void mvCpuL2CntrConfig(int counter, int op)
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{
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MV_U32 reg = (1 << op) | 0x1; /*enable*/
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switch(counter)
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{
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case 0:
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MV_ASM ("mcr p15, 6, %0, c15, c12, 0" : : "r" (reg));
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return;
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case 1:
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MV_ASM ("mcr p15, 6, %0, c15, c12, 1" : : "r" (reg));
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return;
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default:
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mvOsPrintf("mvCpuL2CntrConfig: bad counter number (%d)\n", counter);
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}
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return;
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}
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void mvCpuL2CntrsEventClear(MV_CPU_L2_CNTRS_EVENT* pEvent)
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{
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int i;
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for(i=0; i<MV_CPU_L2_CNTRS_NUM; i++)
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{
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pEvent->counters_sum[i] = 0;
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}
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pEvent->num_of_measurements = 0;
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}
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MV_CPU_L2_CNTRS_EVENT* mvCpuL2CntrsEventCreate(char* name, MV_U32 print_threshold)
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{
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int i;
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MV_CPU_L2_CNTRS_EVENT* event = mvOsMalloc(sizeof(MV_CPU_L2_CNTRS_EVENT));
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if(event)
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{
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strncpy(event->name, name, sizeof(event->name));
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event->num_of_measurements = 0;
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event->avg_sample_count = print_threshold;
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for(i=0; i<MV_CPU_L2_CNTRS_NUM; i++)
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{
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event->counters_before[i] = 0;
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event->counters_after[i] = 0;
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event->counters_sum[i] = 0;
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}
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}
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return event;
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}
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void mvCpuL2CntrsEventDelete(MV_CPU_L2_CNTRS_EVENT* event)
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{
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if(event != NULL)
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mvOsFree(event);
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}
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MV_STATUS mvCpuL2CntrsProgram(int counter, MV_CPU_L2_CNTRS_OPS op,
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char* name, MV_U32 overhead)
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{
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strncpy(mvCpuL2CntrsTbl[counter].name, name, sizeof(mvCpuL2CntrsTbl[counter].name));
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mvCpuL2CntrsTbl[counter].operation = op;
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mvCpuL2CntrsTbl[counter].opIdx = op;
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mvCpuL2CntrsTbl[counter].overhead = overhead;
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mvCpuL2CntrConfig(counter, op);
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mvOsPrintf("CPU L2 Counter %d: operation=%d, overhead=%d\n",
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counter, op, overhead);
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return MV_OK;
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}
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void mvCpuL2CntrsShow(MV_CPU_L2_CNTRS_EVENT* pEvent)
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{
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int i;
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MV_U64 counters_avg;
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if(pEvent->num_of_measurements < pEvent->avg_sample_count)
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return;
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mvOsPrintf("%16s: ", pEvent->name);
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for(i=0; i<MV_CPU_L2_CNTRS_NUM; i++)
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{
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counters_avg = mvOsDivMod64(pEvent->counters_sum[i],
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pEvent->num_of_measurements, NULL);
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if(counters_avg >= mvCpuL2CntrsTbl[i].overhead)
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counters_avg -= mvCpuL2CntrsTbl[i].overhead;
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else
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counters_avg = 0;
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mvOsPrintf("%s=%5llu, ", mvCpuL2CntrsTbl[i].name, counters_avg);
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}
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mvOsPrintf("\n");
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mvCpuL2CntrsEventClear(pEvent);
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mvCpuL2CntrsReset();
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}
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void mvCpuL2CntrsStatus(void)
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{
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int i;
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for(i=0; i<MV_CPU_L2_CNTRS_NUM; i++)
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{
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mvOsPrintf("#%d: %s, overhead=%d\n",
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i, mvCpuL2CntrsTbl[i].name, mvCpuL2CntrsTbl[i].overhead);
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}
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}
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