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Diffstat (limited to 'arch/powerpc/perf/isa207-common.h')
| -rw-r--r-- | arch/powerpc/perf/isa207-common.h | 228 |
1 files changed, 228 insertions, 0 deletions
diff --git a/arch/powerpc/perf/isa207-common.h b/arch/powerpc/perf/isa207-common.h new file mode 100644 index 000000000..e5a621699 --- /dev/null +++ b/arch/powerpc/perf/isa207-common.h @@ -0,0 +1,228 @@ +/* + * 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> + +#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_COMBINE(v) (((v) >> EVENT_COMBINE_SHIFT) & EVENT_COMBINE_MASK) +#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) + +/* Contants to support power9 raw encoding format */ +#define p9_EVENT_COMBINE_SHIFT 10 /* Combine bit */ +#define p9_EVENT_COMBINE_MASK 0x3ull +#define p9_EVENT_COMBINE(v) (((v) >> p9_EVENT_COMBINE_SHIFT) & p9_EVENT_COMBINE_MASK) +#define p9_SDAR_MODE_SHIFT 50 +#define p9_SDAR_MODE_MASK 0x3ull +#define p9_SDAR_MODE(v) (((v) >> p9_SDAR_MODE_SHIFT) & p9_SDAR_MODE_MASK) + +#define p9_EVENT_VALID_MASK \ + ((p9_SDAR_MODE_MASK << p9_SDAR_MODE_SHIFT | \ + (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) | \ + (p9_EVENT_COMBINE_MASK << p9_EVENT_COMBINE_SHIFT) | \ + (EVENT_MARKED_MASK << EVENT_MARKED_SHIFT) | \ + EVENT_LINUX_MASK | \ + EVENT_PSEL_MASK)) + +/* + * 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_IC_QUAL_MASK 0x3 +#define MMCR1_DC_IC_QUAL_SHIFT 46 + +/* MMCR1 Combine bits macro for power9 */ +#define p9_MMCR1_COMBINE_SHIFT(pmc) (38 - ((pmc - 1) * 2)) + +/* 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_SHIFT 42 +#define MMCRA_SDAR_MODE_TLB (1ull << MMCRA_SDAR_MODE_SHIFT) +#define MMCRA_SDAR_MODE_NO_UPDATES ~(0x3ull << MMCRA_SDAR_MODE_SHIFT) +#define MMCRA_SDAR_MODE_DCACHE (2ull << MMCRA_SDAR_MODE_SHIFT) +#define MMCRA_IFM_SHIFT 30 +#define MMCRA_THR_CTR_MANT_SHIFT 19 +#define MMCRA_THR_CTR_MANT_MASK 0x7Ful +#define MMCRA_THR_CTR_MANT(v) (((v) >> MMCRA_THR_CTR_MANT_SHIFT) &\ + MMCRA_THR_CTR_MANT_MASK) + +#define MMCRA_THR_CTR_EXP_SHIFT 27 +#define MMCRA_THR_CTR_EXP_MASK 0x7ul +#define MMCRA_THR_CTR_EXP(v) (((v) >> MMCRA_THR_CTR_EXP_SHIFT) &\ + MMCRA_THR_CTR_EXP_MASK) + +/* MMCR1 Threshold Compare bit constant for power9 */ +#define p9_MMCRA_THR_CMP_SHIFT 45 + +/* 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 + +#define ISA207_SIER_TYPE_SHIFT 15 +#define ISA207_SIER_TYPE_MASK (0x7ull << ISA207_SIER_TYPE_SHIFT) + +#define ISA207_SIER_LDST_SHIFT 1 +#define ISA207_SIER_LDST_MASK (0x7ull << ISA207_SIER_LDST_SHIFT) + +#define ISA207_SIER_DATA_SRC_SHIFT 53 +#define ISA207_SIER_DATA_SRC_MASK (0x7ull << ISA207_SIER_DATA_SRC_SHIFT) + +#define P(a, b) PERF_MEM_S(a, b) +#define PH(a, b) (P(LVL, HIT) | P(a, b)) +#define PM(a, b) (P(LVL, MISS) | P(a, b)) + +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[]); +int isa207_get_alternatives(u64 event, u64 alt[], int size, unsigned int flags, + const unsigned int ev_alt[][MAX_ALT]); +void isa207_get_mem_data_src(union perf_mem_data_src *dsrc, u32 flags, + struct pt_regs *regs); +void isa207_get_mem_weight(u64 *weight); + +#endif |