/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright 2009 Paul Mackerras, IBM Corporation.
* Copyright 2013 Michael Ellerman, IBM Corporation.
* Copyright 2016 Madhavan Srinivasan, IBM Corporation.
*/
#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)
#define CNST_CACHE_GROUP_VAL(v) (((v) & 0xffull) << 55)
#define CNST_CACHE_GROUP_MASK CNST_CACHE_GROUP_VAL(0xff)
#define CNST_CACHE_PMC4_VAL (1ull << 54)
#define CNST_CACHE_PMC4_MASK CNST_CACHE_PMC4_VAL
/*
* 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