+++ /dev/null
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include "mvOs.h"
-#include "mvCpuCntrs.h"
-
-
-const static MV_CPU_CNTRS_OPS mvCpuCntrsOpsTbl[MV_CPU_CNTRS_NUM][MV_CPU_CNTRS_OPS_NUM] =
-{
- /*0*/
- {
- MV_CPU_CNTRS_CYCLES, MV_CPU_CNTRS_DCACHE_READ_HIT, MV_CPU_CNTRS_DCACHE_READ_MISS,
- MV_CPU_CNTRS_DCACHE_WRITE_HIT, MV_CPU_CNTRS_DCACHE_WRITE_MISS, MV_CPU_CNTRS_INSTRUCTIONS,
- MV_CPU_CNTRS_INVALID, MV_CPU_CNTRS_INVALID, MV_CPU_CNTRS_INVALID,
- MV_CPU_CNTRS_MMU_READ_LATENCY, MV_CPU_CNTRS_ICACHE_READ_LATENCY, MV_CPU_CNTRS_WB_WRITE_LATENCY,
- MV_CPU_CNTRS_LDM_STM_HOLD, MV_CPU_CNTRS_INVALID, MV_CPU_CNTRS_INVALID,
- MV_CPU_CNTRS_DATA_WRITE_ACCESS, MV_CPU_CNTRS_DATA_READ_ACCESS, MV_CPU_CNTRS_INVALID,
- MV_CPU_CNTRS_BRANCH_PREDICT_COUNT,
- },
- /*1*/
- {
- MV_CPU_CNTRS_CYCLES, MV_CPU_CNTRS_ICACHE_READ_MISS, MV_CPU_CNTRS_DCACHE_READ_MISS,
- MV_CPU_CNTRS_DCACHE_WRITE_MISS, MV_CPU_CNTRS_ITLB_MISS, MV_CPU_CNTRS_SINGLE_ISSUE,
- MV_CPU_CNTRS_INVALID, MV_CPU_CNTRS_BRANCH_RETIRED, MV_CPU_CNTRS_INVALID,
- MV_CPU_CNTRS_MMU_READ_BEAT, MV_CPU_CNTRS_ICACHE_READ_LATENCY, MV_CPU_CNTRS_WB_WRITE_BEAT,
- MV_CPU_CNTRS_INVALID, MV_CPU_CNTRS_IS_HOLD, MV_CPU_CNTRS_DATA_READ_ACCESS,
- MV_CPU_CNTRS_INVALID, MV_CPU_CNTRS_INVALID, MV_CPU_CNTRS_INVALID,
- MV_CPU_CNTRS_INVALID,
- },
- /*2*/
- {
- MV_CPU_CNTRS_CYCLES, MV_CPU_CNTRS_INVALID, MV_CPU_CNTRS_DCACHE_ACCESS,
- MV_CPU_CNTRS_DTLB_MISS, MV_CPU_CNTRS_INVALID, MV_CPU_CNTRS_INVALID,
- MV_CPU_CNTRS_INVALID, MV_CPU_CNTRS_BRANCH_PREDICT_MISS, MV_CPU_CNTRS_WB_WRITE_BEAT,
- MV_CPU_CNTRS_INVALID, MV_CPU_CNTRS_DCACHE_READ_LATENCY, MV_CPU_CNTRS_DCACHE_WRITE_LATENCY,
- MV_CPU_CNTRS_INVALID, MV_CPU_CNTRS_INVALID, MV_CPU_CNTRS_BIU_SIMULT_ACCESS,
- MV_CPU_CNTRS_INVALID, MV_CPU_CNTRS_INVALID, MV_CPU_CNTRS_INVALID,
- MV_CPU_CNTRS_INVALID,
- },
- /*3*/
- {
- MV_CPU_CNTRS_CYCLES, MV_CPU_CNTRS_DCACHE_READ_MISS, MV_CPU_CNTRS_DCACHE_WRITE_MISS,
- MV_CPU_CNTRS_TLB_MISS, MV_CPU_CNTRS_INVALID, MV_CPU_CNTRS_INVALID,
- MV_CPU_CNTRS_INVALID, MV_CPU_CNTRS_BRANCH_TAKEN, MV_CPU_CNTRS_WB_FULL_CYCLES,
- MV_CPU_CNTRS_INVALID, MV_CPU_CNTRS_DCACHE_READ_BEAT, MV_CPU_CNTRS_DCACHE_WRITE_BEAT,
- MV_CPU_CNTRS_INVALID, MV_CPU_CNTRS_INVALID, MV_CPU_CNTRS_BIU_ANY_ACCESS,
- MV_CPU_CNTRS_INVALID, MV_CPU_CNTRS_INVALID, MV_CPU_CNTRS_DATA_WRITE_ACCESS,
- MV_CPU_CNTRS_INVALID,
- }
-};
-
-MV_CPU_CNTRS_ENTRY mvCpuCntrsTbl[MV_CPU_CNTRS_NUM];
-
-MV_CPU_CNTRS_EVENT* mvCpuCntrsEventTbl[128];
-
-void mvCpuCntrsReset(void)
-{
- MV_U32 reg = 0;
-
- MV_ASM ("mcr p15, 0, %0, c15, c13, 0" : : "r" (reg));
- MV_ASM ("mcr p15, 0, %0, c15, c13, 1" : : "r" (reg));
- MV_ASM ("mcr p15, 0, %0, c15, c13, 2" : : "r" (reg));
- MV_ASM ("mcr p15, 0, %0, c15, c13, 3" : : "r" (reg));
- MV_ASM ("mcr p15, 0, %0, c15, c13, 4" : : "r" (reg));
- MV_ASM ("mcr p15, 0, %0, c15, c13, 5" : : "r" (reg));
- MV_ASM ("mcr p15, 0, %0, c15, c13, 6" : : "r" (reg));
- MV_ASM ("mcr p15, 0, %0, c15, c13, 7" : : "r" (reg));
-}
-
-void program_counter(int counter, int op)
-{
- MV_U32 reg = (1 << op) | 0x1; /*enable*/
-
- switch(counter)
- {
- case 0:
- __asm__ __volatile__ ("mcr p15, 0, %0, c15, c12, 0" : : "r" (reg));
- return;
-
- case 1:
- __asm__ __volatile__ ("mcr p15, 0, %0, c15, c12, 1" : : "r" (reg));
- return;
-
- case 2:
- __asm__ __volatile__ ("mcr p15, 0, %0, c15, c12, 2" : : "r" (reg));
- return;
-
- case 3:
- __asm__ __volatile__ ("mcr p15, 0, %0, c15, c12, 3" : : "r" (reg));
- return;
-
- default:
- mvOsPrintf("error in program_counter: bad counter number (%d)\n", counter);
- }
- return;
-}
-
-void mvCpuCntrsEventClear(MV_CPU_CNTRS_EVENT* pEvent)
-{
- int i;
-
- for(i=0; i<MV_CPU_CNTRS_NUM; i++)
- {
- pEvent->counters_sum[i] = 0;
- }
- pEvent->num_of_measurements = 0;
-}
-
-
-MV_CPU_CNTRS_EVENT* mvCpuCntrsEventCreate(char* name, MV_U32 print_threshold)
-{
- int i;
- MV_CPU_CNTRS_EVENT* event = mvOsMalloc(sizeof(MV_CPU_CNTRS_EVENT));
-
- if(event)
- {
- strncpy(event->name, name, sizeof(event->name));
- event->num_of_measurements = 0;
- event->avg_sample_count = print_threshold;
- for(i=0; i<MV_CPU_CNTRS_NUM; i++)
- {
- event->counters_before[i] = 0;
- event->counters_after[i] = 0;
- event->counters_sum[i] = 0;
- }
- }
- return event;
-}
-
-void mvCpuCntrsEventDelete(MV_CPU_CNTRS_EVENT* event)
-{
- if(event != NULL)
- mvOsFree(event);
-}
-
-
-MV_STATUS mvCpuCntrsProgram(int counter, MV_CPU_CNTRS_OPS op,
- char* name, MV_U32 overhead)
-{
- int i;
-
- /* Find required operations */
- for(i=0; i<MV_CPU_CNTRS_OPS_NUM; i++)
- {
- if( mvCpuCntrsOpsTbl[counter][i] == op)
- {
- strncpy(mvCpuCntrsTbl[counter].name, name, sizeof(mvCpuCntrsTbl[counter].name));
- mvCpuCntrsTbl[counter].operation = op;
- mvCpuCntrsTbl[counter].opIdx = i+1;
- mvCpuCntrsTbl[counter].overhead = overhead;
- program_counter(counter, mvCpuCntrsTbl[counter].opIdx);
- mvOsPrintf("Counter=%d, opIdx=%d, overhead=%d\n",
- counter, mvCpuCntrsTbl[counter].opIdx, mvCpuCntrsTbl[counter].overhead);
- return MV_OK;
- }
- }
- return MV_NOT_FOUND;
-}
-
-void mvCpuCntrsShow(MV_CPU_CNTRS_EVENT* pEvent)
-{
- int i;
- MV_U64 counters_avg;
-
- if(pEvent->num_of_measurements < pEvent->avg_sample_count)
- return;
-
- mvOsPrintf("%16s: ", pEvent->name);
- for(i=0; i<MV_CPU_CNTRS_NUM; i++)
- {
- counters_avg = mvOsDivMod64(pEvent->counters_sum[i],
- pEvent->num_of_measurements, NULL);
- if(counters_avg >= mvCpuCntrsTbl[i].overhead)
- counters_avg -= mvCpuCntrsTbl[i].overhead;
- else
- counters_avg = 0;
-
- mvOsPrintf("%s=%5llu, ", mvCpuCntrsTbl[i].name, counters_avg);
- }
- mvOsPrintf("\n");
- mvCpuCntrsEventClear(pEvent);
- mvCpuCntrsReset();
-}
-
-void mvCpuCntrsStatus(void)
-{
- int i;
-
- for(i=0; i<MV_CPU_CNTRS_NUM; i++)
- {
- mvOsPrintf("#%d: %s, overhead=%d\n",
- i, mvCpuCntrsTbl[i].name, mvCpuCntrsTbl[i].overhead);
- }
-}
projects / openwrt / svn-archive / archive.git / blobdiff