| /* |
| * Copyright 2009 Paul Mackerras, IBM Corporation. |
| * Copyright 2013 Michael Ellerman, IBM Corporation. |
| * Copyright 2016 Madhavan Srinivasan, IBM Corporation. |
| * |
| * 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 any later version. |
| */ |
| |
| #ifndef _LINUX_POWERPC_PERF_ISA207_COMMON_H_ |
| #define _LINUX_POWERPC_PERF_ISA207_COMMON_H_ |
| |
| #include <linux/kernel.h> |
| #include <linux/perf_event.h> |
| #include <asm/firmware.h> |
| #include <asm/cputable.h> |
| |
| /* |
| * Raw event encoding for PowerISA v2.07: |
| * |
| * 60 56 52 48 44 40 36 32 |
| * | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | |
| * | | [ ] [ thresh_cmp ] [ thresh_ctl ] |
| * | | | | |
| * | | *- IFM (Linux) thresh start/stop OR FAB match -* |
| * | *- BHRB (Linux) |
| * *- EBB (Linux) |
| * |
| * 28 24 20 16 12 8 4 0 |
| * | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | |
| * [ ] [ sample ] [cache] [ pmc ] [unit ] c m [ pmcxsel ] |
| * | | | | | |
| * | | | | *- mark |
| * | | *- L1/L2/L3 cache_sel | |
| * | | | |
| * | *- sampling mode for marked events *- combine |
| * | |
| * *- thresh_sel |
| * |
| * Below uses IBM bit numbering. |
| * |
| * MMCR1[x:y] = unit (PMCxUNIT) |
| * MMCR1[x] = combine (PMCxCOMB) |
| * |
| * if pmc == 3 and unit == 0 and pmcxsel[0:6] == 0b0101011 |
| * # PM_MRK_FAB_RSP_MATCH |
| * MMCR1[20:27] = thresh_ctl (FAB_CRESP_MATCH / FAB_TYPE_MATCH) |
| * else if pmc == 4 and unit == 0xf and pmcxsel[0:6] == 0b0101001 |
| * # PM_MRK_FAB_RSP_MATCH_CYC |
| * MMCR1[20:27] = thresh_ctl (FAB_CRESP_MATCH / FAB_TYPE_MATCH) |
| * else |
| * MMCRA[48:55] = thresh_ctl (THRESH START/END) |
| * |
| * if thresh_sel: |
| * MMCRA[45:47] = thresh_sel |
| * |
| * if thresh_cmp: |
| * MMCRA[22:24] = thresh_cmp[0:2] |
| * MMCRA[25:31] = thresh_cmp[3:9] |
| * |
| * if unit == 6 or unit == 7 |
| * MMCRC[53:55] = cache_sel[1:3] (L2EVENT_SEL) |
| * else if unit == 8 or unit == 9: |
| * if cache_sel[0] == 0: # L3 bank |
| * MMCRC[47:49] = cache_sel[1:3] (L3EVENT_SEL0) |
| * else if cache_sel[0] == 1: |
| * MMCRC[50:51] = cache_sel[2:3] (L3EVENT_SEL1) |
| * else if cache_sel[1]: # L1 event |
| * MMCR1[16] = cache_sel[2] |
| * MMCR1[17] = cache_sel[3] |
| * |
| * if mark: |
| * MMCRA[63] = 1 (SAMPLE_ENABLE) |
| * MMCRA[57:59] = sample[0:2] (RAND_SAMP_ELIG) |
| * MMCRA[61:62] = sample[3:4] (RAND_SAMP_MODE) |
| * |
| * if EBB and BHRB: |
| * MMCRA[32:33] = IFM |
| * |
| */ |
| |
| #define EVENT_EBB_MASK 1ull |
| #define EVENT_EBB_SHIFT PERF_EVENT_CONFIG_EBB_SHIFT |
| #define EVENT_BHRB_MASK 1ull |
| #define EVENT_BHRB_SHIFT 62 |
| #define EVENT_WANTS_BHRB (EVENT_BHRB_MASK << EVENT_BHRB_SHIFT) |
| #define EVENT_IFM_MASK 3ull |
| #define EVENT_IFM_SHIFT 60 |
| #define EVENT_THR_CMP_SHIFT 40 /* Threshold CMP value */ |
| #define EVENT_THR_CMP_MASK 0x3ff |
| #define EVENT_THR_CTL_SHIFT 32 /* Threshold control value (start/stop) */ |
| #define EVENT_THR_CTL_MASK 0xffull |
| #define EVENT_THR_SEL_SHIFT 29 /* Threshold select value */ |
| #define EVENT_THR_SEL_MASK 0x7 |
| #define EVENT_THRESH_SHIFT 29 /* All threshold bits */ |
| #define EVENT_THRESH_MASK 0x1fffffull |
| #define EVENT_SAMPLE_SHIFT 24 /* Sampling mode & eligibility */ |
| #define EVENT_SAMPLE_MASK 0x1f |
| #define EVENT_CACHE_SEL_SHIFT 20 /* L2/L3 cache select */ |
| #define EVENT_CACHE_SEL_MASK 0xf |
| #define EVENT_IS_L1 (4 << EVENT_CACHE_SEL_SHIFT) |
| #define EVENT_PMC_SHIFT 16 /* PMC number (1-based) */ |
| #define EVENT_PMC_MASK 0xf |
| #define EVENT_UNIT_SHIFT 12 /* Unit */ |
| #define EVENT_UNIT_MASK 0xf |
| #define EVENT_COMBINE_SHIFT 11 /* Combine bit */ |
| #define EVENT_COMBINE_MASK 0x1 |
| #define EVENT_MARKED_SHIFT 8 /* Marked bit */ |
| #define EVENT_MARKED_MASK 0x1 |
| #define EVENT_IS_MARKED (EVENT_MARKED_MASK << EVENT_MARKED_SHIFT) |
| #define EVENT_PSEL_MASK 0xff /* PMCxSEL value */ |
| |
| /* Bits defined by Linux */ |
| #define EVENT_LINUX_MASK \ |
| ((EVENT_EBB_MASK << EVENT_EBB_SHIFT) | \ |
| (EVENT_BHRB_MASK << EVENT_BHRB_SHIFT) | \ |
| (EVENT_IFM_MASK << EVENT_IFM_SHIFT)) |
| |
| #define EVENT_VALID_MASK \ |
| ((EVENT_THRESH_MASK << EVENT_THRESH_SHIFT) | \ |
| (EVENT_SAMPLE_MASK << EVENT_SAMPLE_SHIFT) | \ |
| (EVENT_CACHE_SEL_MASK << EVENT_CACHE_SEL_SHIFT) | \ |
| (EVENT_PMC_MASK << EVENT_PMC_SHIFT) | \ |
| (EVENT_UNIT_MASK << EVENT_UNIT_SHIFT) | \ |
| (EVENT_COMBINE_MASK << EVENT_COMBINE_SHIFT) | \ |
| (EVENT_MARKED_MASK << EVENT_MARKED_SHIFT) | \ |
| EVENT_LINUX_MASK | \ |
| EVENT_PSEL_MASK) |
| |
| #define ONLY_PLM \ |
| (PERF_SAMPLE_BRANCH_USER |\ |
| PERF_SAMPLE_BRANCH_KERNEL |\ |
| PERF_SAMPLE_BRANCH_HV) |
| |
| /* |
| * Layout of constraint bits: |
| * |
| * 60 56 52 48 44 40 36 32 |
| * | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | |
| * [ fab_match ] [ thresh_cmp ] [ thresh_ctl ] [ ] |
| * | |
| * thresh_sel -* |
| * |
| * 28 24 20 16 12 8 4 0 |
| * | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | |
| * [ ] | [ ] [ sample ] [ ] [6] [5] [4] [3] [2] [1] |
| * | | | | |
| * BHRB IFM -* | | | Count of events for each PMC. |
| * EBB -* | | p1, p2, p3, p4, p5, p6. |
| * L1 I/D qualifier -* | |
| * nc - number of counters -* |
| * |
| * The PMC fields P1..P6, and NC, are adder fields. As we accumulate constraints |
| * we want the low bit of each field to be added to any existing value. |
| * |
| * Everything else is a value field. |
| */ |
| |
| #define CNST_FAB_MATCH_VAL(v) (((v) & EVENT_THR_CTL_MASK) << 56) |
| #define CNST_FAB_MATCH_MASK CNST_FAB_MATCH_VAL(EVENT_THR_CTL_MASK) |
| |
| /* We just throw all the threshold bits into the constraint */ |
| #define CNST_THRESH_VAL(v) (((v) & EVENT_THRESH_MASK) << 32) |
| #define CNST_THRESH_MASK CNST_THRESH_VAL(EVENT_THRESH_MASK) |
| |
| #define CNST_EBB_VAL(v) (((v) & EVENT_EBB_MASK) << 24) |
| #define CNST_EBB_MASK CNST_EBB_VAL(EVENT_EBB_MASK) |
| |
| #define CNST_IFM_VAL(v) (((v) & EVENT_IFM_MASK) << 25) |
| #define CNST_IFM_MASK CNST_IFM_VAL(EVENT_IFM_MASK) |
| |
| #define CNST_L1_QUAL_VAL(v) (((v) & 3) << 22) |
| #define CNST_L1_QUAL_MASK CNST_L1_QUAL_VAL(3) |
| |
| #define CNST_SAMPLE_VAL(v) (((v) & EVENT_SAMPLE_MASK) << 16) |
| #define CNST_SAMPLE_MASK CNST_SAMPLE_VAL(EVENT_SAMPLE_MASK) |
| |
| /* |
| * For NC we are counting up to 4 events. This requires three bits, and we need |
| * the fifth event to overflow and set the 4th bit. To achieve that we bias the |
| * fields by 3 in test_adder. |
| */ |
| #define CNST_NC_SHIFT 12 |
| #define CNST_NC_VAL (1 << CNST_NC_SHIFT) |
| #define CNST_NC_MASK (8 << CNST_NC_SHIFT) |
| #define ISA207_TEST_ADDER (3 << CNST_NC_SHIFT) |
| |
| /* |
| * For the per-PMC fields we have two bits. The low bit is added, so if two |
| * events ask for the same PMC the sum will overflow, setting the high bit, |
| * indicating an error. So our mask sets the high bit. |
| */ |
| #define CNST_PMC_SHIFT(pmc) ((pmc - 1) * 2) |
| #define CNST_PMC_VAL(pmc) (1 << CNST_PMC_SHIFT(pmc)) |
| #define CNST_PMC_MASK(pmc) (2 << CNST_PMC_SHIFT(pmc)) |
| |
| /* Our add_fields is defined as: */ |
| #define ISA207_ADD_FIELDS \ |
| CNST_PMC_VAL(1) | CNST_PMC_VAL(2) | CNST_PMC_VAL(3) | \ |
| CNST_PMC_VAL(4) | CNST_PMC_VAL(5) | CNST_PMC_VAL(6) | CNST_NC_VAL |
| |
| |
| /* Bits in MMCR1 for PowerISA v2.07 */ |
| #define MMCR1_UNIT_SHIFT(pmc) (60 - (4 * ((pmc) - 1))) |
| #define MMCR1_COMBINE_SHIFT(pmc) (35 - ((pmc) - 1)) |
| #define MMCR1_PMCSEL_SHIFT(pmc) (24 - (((pmc) - 1)) * 8) |
| #define MMCR1_FAB_SHIFT 36 |
| #define MMCR1_DC_QUAL_SHIFT 47 |
| #define MMCR1_IC_QUAL_SHIFT 46 |
| |
| /* Bits in MMCRA for PowerISA v2.07 */ |
| #define MMCRA_SAMP_MODE_SHIFT 1 |
| #define MMCRA_SAMP_ELIG_SHIFT 4 |
| #define MMCRA_THR_CTL_SHIFT 8 |
| #define MMCRA_THR_SEL_SHIFT 16 |
| #define MMCRA_THR_CMP_SHIFT 32 |
| #define MMCRA_SDAR_MODE_TLB (1ull << 42) |
| #define MMCRA_IFM_SHIFT 30 |
| |
| /* Bits in MMCR2 for PowerISA v2.07 */ |
| #define MMCR2_FCS(pmc) (1ull << (63 - (((pmc) - 1) * 9))) |
| #define MMCR2_FCP(pmc) (1ull << (62 - (((pmc) - 1) * 9))) |
| #define MMCR2_FCH(pmc) (1ull << (57 - (((pmc) - 1) * 9))) |
| |
| #define MAX_ALT 2 |
| #define MAX_PMU_COUNTERS 6 |
| |
| int isa207_get_constraint(u64 event, unsigned long *maskp, unsigned long *valp); |
| int isa207_compute_mmcr(u64 event[], int n_ev, |
| unsigned int hwc[], unsigned long mmcr[], |
| struct perf_event *pevents[]); |
| void isa207_disable_pmc(unsigned int pmc, unsigned long mmcr[]); |
| |
| #endif |
