| /* |
| * 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" |
| |
| int mvCpuCntrsMap(int counter, MV_CPU_CNTRS_OPS op) |
| { |
| int event; |
| |
| switch (op) { |
| case MV_CPU_CNTRS_CYCLES: |
| event = MRVL_PJ4B_CYCLE_COUNT; |
| break; |
| |
| case MV_CPU_CNTRS_INSTRUCTIONS: |
| event = MRVL_PJ4B_INSN_EXECUTED; |
| break; |
| |
| case MV_CPU_CNTRS_ICACHE_READ_MISS: |
| event = MRVL_PJ4B_ICACHE_READ_MISS; |
| break; |
| |
| case MV_CPU_CNTRS_DCACHE_READ_MISS: |
| event = MRVL_PJ4B_DCACHE_READ_MISS; |
| break; |
| |
| case MV_CPU_CNTRS_DCACHE_WRITE_MISS: |
| event = MRVL_PJ4B_DCACHE_WRITE_MISS; |
| break; |
| |
| case MV_CPU_CNTRS_DTLB_MISS: |
| event = MRVL_PJ4B_DTLB_MISS; |
| break; |
| |
| default: |
| mvOsPrintf("invalid CPU counters event %d\n", op); |
| return -1; |
| } |
| return event; |
| } |
| |
| |
| int mvCpuCntrsStart(int idx, int event) |
| { |
| u32 enable; |
| |
| if (idx == MRVL_PJ4B_CCNT) { |
| enable = (1 << MRVL_PJ4B_CCNT_BIT_OFFSET); |
| } else if (idx < MRVL_PJ4B_MAX_COUNTERS) { |
| enable = (1 << (idx - MRVL_PJ4B_PMN0)); |
| } else { |
| mvOsPrintf("invalid counter number (%d)\n", idx); |
| return 1; |
| } |
| mrvl_pj4b_pmu_cntr_disable(enable); |
| if (idx != MRVL_PJ4B_CCNT) { |
| /* select event */ |
| if (evt >= MRVL_PJ4B_EVT_UNUSED) |
| return 1; |
| |
| mrvl_pj4b_pmu_select_event((idx - MRVL_PJ4B_PMN0), evt); |
| } |
| mrvl_pj4b_pmu_cntr_enable(enable); |
| return 0; |
| } |
| |
| void mvCpuCntrsInit(void) |
| { |
| MV_U32 pmnc; |
| |
| mvCpuCntrsReset(); |
| |
| pmnc = mrvl_pj4b_read_pmnc(); |
| |
| pmnc &= ~MRVL_PJ4B_PMU_RESET; |
| pmnc |= MRVL_PJ4B_PMU_ENABLE; |
| |
| mrvl_pj4b_write_pmnc(pmnc); |
| } |
| |