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linux/arch/x86/include/asm/perf_event_p4.h
Ingo Molnar 5ac2b5c272 perf/x86/intel/P4: Robistify P4 PMU types 
Linus found, while extending integer type extension checks in the
sparse static code checker, various fragile patterns of mixed
signed/unsigned  64-bit/32-bit integer use in perf_events_p4.c.

The relevant hardware register ABI is 64 bit wide on 32-bit
kernels as  well, so clean it all up a bit, remove unnecessary
casts, and make sure we  use 64-bit unsigned integers in these
places.

[ Unfortunately this patch was not tested on real P4 hardware,
  those are pretty rare already. If this patch causes any
  problems on P4 hardware then please holler ... ]

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: David Miller <davem@davemloft.net>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20130424072630.GB1780@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-04-26 09:31:41 +02:00

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/*
* Netburst Performance Events (P4, old Xeon)
*/
#ifndef PERF_EVENT_P4_H
#define PERF_EVENT_P4_H
#include <linux/cpu.h>
#include <linux/bitops.h>
/*
* NetBurst has performance MSRs shared between
* threads if HT is turned on, ie for both logical
* processors (mem: in turn in Atom with HT support
* perf-MSRs are not shared and every thread has its
* own perf-MSRs set)
*/
#define ARCH_P4_TOTAL_ESCR (46)
#define ARCH_P4_RESERVED_ESCR (2) /* IQ_ESCR(0,1) not always present */
#define ARCH_P4_MAX_ESCR (ARCH_P4_TOTAL_ESCR - ARCH_P4_RESERVED_ESCR)
#define ARCH_P4_MAX_CCCR (18)
#define ARCH_P4_CNTRVAL_BITS (40)
#define ARCH_P4_CNTRVAL_MASK ((1ULL << ARCH_P4_CNTRVAL_BITS) - 1)
#define ARCH_P4_UNFLAGGED_BIT ((1ULL) << (ARCH_P4_CNTRVAL_BITS - 1))
#define P4_ESCR_EVENT_MASK 0x7e000000ULL
#define P4_ESCR_EVENT_SHIFT 25
#define P4_ESCR_EVENTMASK_MASK 0x01fffe00ULL
#define P4_ESCR_EVENTMASK_SHIFT 9
#define P4_ESCR_TAG_MASK 0x000001e0ULL
#define P4_ESCR_TAG_SHIFT 5
#define P4_ESCR_TAG_ENABLE 0x00000010ULL
#define P4_ESCR_T0_OS 0x00000008ULL
#define P4_ESCR_T0_USR 0x00000004ULL
#define P4_ESCR_T1_OS 0x00000002ULL
#define P4_ESCR_T1_USR 0x00000001ULL
#define P4_ESCR_EVENT(v) ((v) << P4_ESCR_EVENT_SHIFT)
#define P4_ESCR_EMASK(v) ((v) << P4_ESCR_EVENTMASK_SHIFT)
#define P4_ESCR_TAG(v) ((v) << P4_ESCR_TAG_SHIFT)
#define P4_CCCR_OVF 0x80000000ULL
#define P4_CCCR_CASCADE 0x40000000ULL
#define P4_CCCR_OVF_PMI_T0 0x04000000ULL
#define P4_CCCR_OVF_PMI_T1 0x08000000ULL
#define P4_CCCR_FORCE_OVF 0x02000000ULL
#define P4_CCCR_EDGE 0x01000000ULL
#define P4_CCCR_THRESHOLD_MASK 0x00f00000ULL
#define P4_CCCR_THRESHOLD_SHIFT 20
#define P4_CCCR_COMPLEMENT 0x00080000ULL
#define P4_CCCR_COMPARE 0x00040000ULL
#define P4_CCCR_ESCR_SELECT_MASK 0x0000e000ULL
#define P4_CCCR_ESCR_SELECT_SHIFT 13
#define P4_CCCR_ENABLE 0x00001000ULL
#define P4_CCCR_THREAD_SINGLE 0x00010000ULL
#define P4_CCCR_THREAD_BOTH 0x00020000ULL
#define P4_CCCR_THREAD_ANY 0x00030000ULL
#define P4_CCCR_RESERVED 0x00000fffULL
#define P4_CCCR_THRESHOLD(v) ((v) << P4_CCCR_THRESHOLD_SHIFT)
#define P4_CCCR_ESEL(v) ((v) << P4_CCCR_ESCR_SELECT_SHIFT)
#define P4_GEN_ESCR_EMASK(class, name, bit) \
class##__##name = ((1ULL << bit) << P4_ESCR_EVENTMASK_SHIFT)
#define P4_ESCR_EMASK_BIT(class, name) class##__##name
/*
* config field is 64bit width and consists of
* HT << 63 | ESCR << 32 | CCCR
* where HT is HyperThreading bit (since ESCR
* has it reserved we may use it for own purpose)
*
* note that this is NOT the addresses of respective
* ESCR and CCCR but rather an only packed value should
* be unpacked and written to a proper addresses
*
* the base idea is to pack as much info as possible
*/
#define p4_config_pack_escr(v) (((u64)(v)) << 32)
#define p4_config_pack_cccr(v) (((u64)(v)) & 0xffffffffULL)
#define p4_config_unpack_escr(v) (((u64)(v)) >> 32)
#define p4_config_unpack_cccr(v) (((u64)(v)) & 0xffffffffULL)
#define p4_config_unpack_emask(v) \
({ \
u32 t = p4_config_unpack_escr((v)); \
t = t & P4_ESCR_EVENTMASK_MASK; \
t = t >> P4_ESCR_EVENTMASK_SHIFT; \
t; \
})
#define p4_config_unpack_event(v) \
({ \
u32 t = p4_config_unpack_escr((v)); \
t = t & P4_ESCR_EVENT_MASK; \
t = t >> P4_ESCR_EVENT_SHIFT; \
t; \
})
#define P4_CONFIG_HT_SHIFT 63
#define P4_CONFIG_HT (1ULL << P4_CONFIG_HT_SHIFT)
/*
* If an event has alias it should be marked
* with a special bit. (Don't forget to check
* P4_PEBS_CONFIG_MASK and related bits on
* modification.)
*/
#define P4_CONFIG_ALIASABLE (1ULL << 9)
/*
* The bits we allow to pass for RAW events
*/
#define P4_CONFIG_MASK_ESCR \
P4_ESCR_EVENT_MASK | \
P4_ESCR_EVENTMASK_MASK | \
P4_ESCR_TAG_MASK | \
P4_ESCR_TAG_ENABLE
#define P4_CONFIG_MASK_CCCR \
P4_CCCR_EDGE | \
P4_CCCR_THRESHOLD_MASK | \
P4_CCCR_COMPLEMENT | \
P4_CCCR_COMPARE | \
P4_CCCR_THREAD_ANY | \
P4_CCCR_RESERVED
/* some dangerous bits are reserved for kernel internals */
#define P4_CONFIG_MASK \
(p4_config_pack_escr(P4_CONFIG_MASK_ESCR)) | \
(p4_config_pack_cccr(P4_CONFIG_MASK_CCCR))
/*
* In case of event aliasing we need to preserve some
* caller bits, otherwise the mapping won't be complete.
*/
#define P4_CONFIG_EVENT_ALIAS_MASK \
(p4_config_pack_escr(P4_CONFIG_MASK_ESCR) | \
p4_config_pack_cccr(P4_CCCR_EDGE | \
P4_CCCR_THRESHOLD_MASK | \
P4_CCCR_COMPLEMENT | \
P4_CCCR_COMPARE))
#define P4_CONFIG_EVENT_ALIAS_IMMUTABLE_BITS \
((P4_CONFIG_HT) | \
p4_config_pack_escr(P4_ESCR_T0_OS | \
P4_ESCR_T0_USR | \
P4_ESCR_T1_OS | \
P4_ESCR_T1_USR) | \
p4_config_pack_cccr(P4_CCCR_OVF | \
P4_CCCR_CASCADE | \
P4_CCCR_FORCE_OVF | \
P4_CCCR_THREAD_ANY | \
P4_CCCR_OVF_PMI_T0 | \
P4_CCCR_OVF_PMI_T1 | \
P4_CONFIG_ALIASABLE))
static inline bool p4_is_event_cascaded(u64 config)
{
u32 cccr = p4_config_unpack_cccr(config);
return !!(cccr & P4_CCCR_CASCADE);
}
static inline int p4_ht_config_thread(u64 config)
{
return !!(config & P4_CONFIG_HT);
}
static inline u64 p4_set_ht_bit(u64 config)
{
return config | P4_CONFIG_HT;
}
static inline u64 p4_clear_ht_bit(u64 config)
{
return config & ~P4_CONFIG_HT;
}
static inline int p4_ht_active(void)
{
#ifdef CONFIG_SMP
return smp_num_siblings > 1;
#endif
return 0;
}
static inline int p4_ht_thread(int cpu)
{
#ifdef CONFIG_SMP
if (smp_num_siblings == 2)
return cpu != cpumask_first(__get_cpu_var(cpu_sibling_map));
#endif
return 0;
}
static inline int p4_should_swap_ts(u64 config, int cpu)
{
return p4_ht_config_thread(config) ^ p4_ht_thread(cpu);
}
static inline u32 p4_default_cccr_conf(int cpu)
{
/*
* Note that P4_CCCR_THREAD_ANY is "required" on
* non-HT machines (on HT machines we count TS events
* regardless the state of second logical processor
*/
u32 cccr = P4_CCCR_THREAD_ANY;
if (!p4_ht_thread(cpu))
cccr |= P4_CCCR_OVF_PMI_T0;
else
cccr |= P4_CCCR_OVF_PMI_T1;
return cccr;
}
static inline u32 p4_default_escr_conf(int cpu, int exclude_os, int exclude_usr)
{
u32 escr = 0;
if (!p4_ht_thread(cpu)) {
if (!exclude_os)
escr |= P4_ESCR_T0_OS;
if (!exclude_usr)
escr |= P4_ESCR_T0_USR;
} else {
if (!exclude_os)
escr |= P4_ESCR_T1_OS;
if (!exclude_usr)
escr |= P4_ESCR_T1_USR;
}
return escr;
}
/*
* This are the events which should be used in "Event Select"
* field of ESCR register, they are like unique keys which allow
* the kernel to determinate which CCCR and COUNTER should be
* used to track an event
*/
enum P4_EVENTS {
P4_EVENT_TC_DELIVER_MODE,
P4_EVENT_BPU_FETCH_REQUEST,
P4_EVENT_ITLB_REFERENCE,
P4_EVENT_MEMORY_CANCEL,
P4_EVENT_MEMORY_COMPLETE,
P4_EVENT_LOAD_PORT_REPLAY,
P4_EVENT_STORE_PORT_REPLAY,
P4_EVENT_MOB_LOAD_REPLAY,
P4_EVENT_PAGE_WALK_TYPE,
P4_EVENT_BSQ_CACHE_REFERENCE,
P4_EVENT_IOQ_ALLOCATION,
P4_EVENT_IOQ_ACTIVE_ENTRIES,
P4_EVENT_FSB_DATA_ACTIVITY,
P4_EVENT_BSQ_ALLOCATION,
P4_EVENT_BSQ_ACTIVE_ENTRIES,
P4_EVENT_SSE_INPUT_ASSIST,
P4_EVENT_PACKED_SP_UOP,
P4_EVENT_PACKED_DP_UOP,
P4_EVENT_SCALAR_SP_UOP,
P4_EVENT_SCALAR_DP_UOP,
P4_EVENT_64BIT_MMX_UOP,
P4_EVENT_128BIT_MMX_UOP,
P4_EVENT_X87_FP_UOP,
P4_EVENT_TC_MISC,
P4_EVENT_GLOBAL_POWER_EVENTS,
P4_EVENT_TC_MS_XFER,
P4_EVENT_UOP_QUEUE_WRITES,
P4_EVENT_RETIRED_MISPRED_BRANCH_TYPE,
P4_EVENT_RETIRED_BRANCH_TYPE,
P4_EVENT_RESOURCE_STALL,
P4_EVENT_WC_BUFFER,
P4_EVENT_B2B_CYCLES,
P4_EVENT_BNR,
P4_EVENT_SNOOP,
P4_EVENT_RESPONSE,
P4_EVENT_FRONT_END_EVENT,
P4_EVENT_EXECUTION_EVENT,
P4_EVENT_REPLAY_EVENT,
P4_EVENT_INSTR_RETIRED,
P4_EVENT_UOPS_RETIRED,
P4_EVENT_UOP_TYPE,
P4_EVENT_BRANCH_RETIRED,
P4_EVENT_MISPRED_BRANCH_RETIRED,
P4_EVENT_X87_ASSIST,
P4_EVENT_MACHINE_CLEAR,
P4_EVENT_INSTR_COMPLETED,
};
#define P4_OPCODE(event) event##_OPCODE
#define P4_OPCODE_ESEL(opcode) ((opcode & 0x00ff) >> 0)
#define P4_OPCODE_EVNT(opcode) ((opcode & 0xff00) >> 8)
#define P4_OPCODE_PACK(event, sel) (((event) << 8) | sel)
/*
* Comments below the event represent ESCR restriction
* for this event and counter index per ESCR
*
* MSR_P4_IQ_ESCR0 and MSR_P4_IQ_ESCR1 are available only on early
* processor builds (family 0FH, models 01H-02H). These MSRs
* are not available on later versions, so that we don't use
* them completely
*
* Also note that CCCR1 do not have P4_CCCR_ENABLE bit properly
* working so that we should not use this CCCR and respective
* counter as result
*/
enum P4_EVENT_OPCODES {
P4_OPCODE(P4_EVENT_TC_DELIVER_MODE) = P4_OPCODE_PACK(0x01, 0x01),
/*
* MSR_P4_TC_ESCR0: 4, 5
* MSR_P4_TC_ESCR1: 6, 7
*/
P4_OPCODE(P4_EVENT_BPU_FETCH_REQUEST) = P4_OPCODE_PACK(0x03, 0x00),
/*
* MSR_P4_BPU_ESCR0: 0, 1
* MSR_P4_BPU_ESCR1: 2, 3
*/
P4_OPCODE(P4_EVENT_ITLB_REFERENCE) = P4_OPCODE_PACK(0x18, 0x03),
/*
* MSR_P4_ITLB_ESCR0: 0, 1
* MSR_P4_ITLB_ESCR1: 2, 3
*/
P4_OPCODE(P4_EVENT_MEMORY_CANCEL) = P4_OPCODE_PACK(0x02, 0x05),
/*
* MSR_P4_DAC_ESCR0: 8, 9
* MSR_P4_DAC_ESCR1: 10, 11
*/
P4_OPCODE(P4_EVENT_MEMORY_COMPLETE) = P4_OPCODE_PACK(0x08, 0x02),
/*
* MSR_P4_SAAT_ESCR0: 8, 9
* MSR_P4_SAAT_ESCR1: 10, 11
*/
P4_OPCODE(P4_EVENT_LOAD_PORT_REPLAY) = P4_OPCODE_PACK(0x04, 0x02),
/*
* MSR_P4_SAAT_ESCR0: 8, 9
* MSR_P4_SAAT_ESCR1: 10, 11
*/
P4_OPCODE(P4_EVENT_STORE_PORT_REPLAY) = P4_OPCODE_PACK(0x05, 0x02),
/*
* MSR_P4_SAAT_ESCR0: 8, 9
* MSR_P4_SAAT_ESCR1: 10, 11
*/
P4_OPCODE(P4_EVENT_MOB_LOAD_REPLAY) = P4_OPCODE_PACK(0x03, 0x02),
/*
* MSR_P4_MOB_ESCR0: 0, 1
* MSR_P4_MOB_ESCR1: 2, 3
*/
P4_OPCODE(P4_EVENT_PAGE_WALK_TYPE) = P4_OPCODE_PACK(0x01, 0x04),
/*
* MSR_P4_PMH_ESCR0: 0, 1
* MSR_P4_PMH_ESCR1: 2, 3
*/
P4_OPCODE(P4_EVENT_BSQ_CACHE_REFERENCE) = P4_OPCODE_PACK(0x0c, 0x07),
/*
* MSR_P4_BSU_ESCR0: 0, 1
* MSR_P4_BSU_ESCR1: 2, 3
*/
P4_OPCODE(P4_EVENT_IOQ_ALLOCATION) = P4_OPCODE_PACK(0x03, 0x06),
/*
* MSR_P4_FSB_ESCR0: 0, 1
* MSR_P4_FSB_ESCR1: 2, 3
*/
P4_OPCODE(P4_EVENT_IOQ_ACTIVE_ENTRIES) = P4_OPCODE_PACK(0x1a, 0x06),
/*
* MSR_P4_FSB_ESCR1: 2, 3
*/
P4_OPCODE(P4_EVENT_FSB_DATA_ACTIVITY) = P4_OPCODE_PACK(0x17, 0x06),
/*
* MSR_P4_FSB_ESCR0: 0, 1
* MSR_P4_FSB_ESCR1: 2, 3
*/
P4_OPCODE(P4_EVENT_BSQ_ALLOCATION) = P4_OPCODE_PACK(0x05, 0x07),
/*
* MSR_P4_BSU_ESCR0: 0, 1
*/
P4_OPCODE(P4_EVENT_BSQ_ACTIVE_ENTRIES) = P4_OPCODE_PACK(0x06, 0x07),
/*
* NOTE: no ESCR name in docs, it's guessed
* MSR_P4_BSU_ESCR1: 2, 3
*/
P4_OPCODE(P4_EVENT_SSE_INPUT_ASSIST) = P4_OPCODE_PACK(0x34, 0x01),
/*
* MSR_P4_FIRM_ESCR0: 8, 9
* MSR_P4_FIRM_ESCR1: 10, 11
*/
P4_OPCODE(P4_EVENT_PACKED_SP_UOP) = P4_OPCODE_PACK(0x08, 0x01),
/*
* MSR_P4_FIRM_ESCR0: 8, 9
* MSR_P4_FIRM_ESCR1: 10, 11
*/
P4_OPCODE(P4_EVENT_PACKED_DP_UOP) = P4_OPCODE_PACK(0x0c, 0x01),
/*
* MSR_P4_FIRM_ESCR0: 8, 9
* MSR_P4_FIRM_ESCR1: 10, 11
*/
P4_OPCODE(P4_EVENT_SCALAR_SP_UOP) = P4_OPCODE_PACK(0x0a, 0x01),
/*
* MSR_P4_FIRM_ESCR0: 8, 9
* MSR_P4_FIRM_ESCR1: 10, 11
*/
P4_OPCODE(P4_EVENT_SCALAR_DP_UOP) = P4_OPCODE_PACK(0x0e, 0x01),
/*
* MSR_P4_FIRM_ESCR0: 8, 9
* MSR_P4_FIRM_ESCR1: 10, 11
*/
P4_OPCODE(P4_EVENT_64BIT_MMX_UOP) = P4_OPCODE_PACK(0x02, 0x01),
/*
* MSR_P4_FIRM_ESCR0: 8, 9
* MSR_P4_FIRM_ESCR1: 10, 11
*/
P4_OPCODE(P4_EVENT_128BIT_MMX_UOP) = P4_OPCODE_PACK(0x1a, 0x01),
/*
* MSR_P4_FIRM_ESCR0: 8, 9
* MSR_P4_FIRM_ESCR1: 10, 11
*/
P4_OPCODE(P4_EVENT_X87_FP_UOP) = P4_OPCODE_PACK(0x04, 0x01),
/*
* MSR_P4_FIRM_ESCR0: 8, 9
* MSR_P4_FIRM_ESCR1: 10, 11
*/
P4_OPCODE(P4_EVENT_TC_MISC) = P4_OPCODE_PACK(0x06, 0x01),
/*
* MSR_P4_TC_ESCR0: 4, 5
* MSR_P4_TC_ESCR1: 6, 7
*/
P4_OPCODE(P4_EVENT_GLOBAL_POWER_EVENTS) = P4_OPCODE_PACK(0x13, 0x06),
/*
* MSR_P4_FSB_ESCR0: 0, 1
* MSR_P4_FSB_ESCR1: 2, 3
*/
P4_OPCODE(P4_EVENT_TC_MS_XFER) = P4_OPCODE_PACK(0x05, 0x00),
/*
* MSR_P4_MS_ESCR0: 4, 5
* MSR_P4_MS_ESCR1: 6, 7
*/
P4_OPCODE(P4_EVENT_UOP_QUEUE_WRITES) = P4_OPCODE_PACK(0x09, 0x00),
/*
* MSR_P4_MS_ESCR0: 4, 5
* MSR_P4_MS_ESCR1: 6, 7
*/
P4_OPCODE(P4_EVENT_RETIRED_MISPRED_BRANCH_TYPE) = P4_OPCODE_PACK(0x05, 0x02),
/*
* MSR_P4_TBPU_ESCR0: 4, 5
* MSR_P4_TBPU_ESCR1: 6, 7
*/
P4_OPCODE(P4_EVENT_RETIRED_BRANCH_TYPE) = P4_OPCODE_PACK(0x04, 0x02),
/*
* MSR_P4_TBPU_ESCR0: 4, 5
* MSR_P4_TBPU_ESCR1: 6, 7
*/
P4_OPCODE(P4_EVENT_RESOURCE_STALL) = P4_OPCODE_PACK(0x01, 0x01),
/*
* MSR_P4_ALF_ESCR0: 12, 13, 16
* MSR_P4_ALF_ESCR1: 14, 15, 17
*/
P4_OPCODE(P4_EVENT_WC_BUFFER) = P4_OPCODE_PACK(0x05, 0x05),
/*
* MSR_P4_DAC_ESCR0: 8, 9
* MSR_P4_DAC_ESCR1: 10, 11
*/
P4_OPCODE(P4_EVENT_B2B_CYCLES) = P4_OPCODE_PACK(0x16, 0x03),
/*
* MSR_P4_FSB_ESCR0: 0, 1
* MSR_P4_FSB_ESCR1: 2, 3
*/
P4_OPCODE(P4_EVENT_BNR) = P4_OPCODE_PACK(0x08, 0x03),
/*
* MSR_P4_FSB_ESCR0: 0, 1
* MSR_P4_FSB_ESCR1: 2, 3
*/
P4_OPCODE(P4_EVENT_SNOOP) = P4_OPCODE_PACK(0x06, 0x03),
/*
* MSR_P4_FSB_ESCR0: 0, 1
* MSR_P4_FSB_ESCR1: 2, 3
*/
P4_OPCODE(P4_EVENT_RESPONSE) = P4_OPCODE_PACK(0x04, 0x03),
/*
* MSR_P4_FSB_ESCR0: 0, 1
* MSR_P4_FSB_ESCR1: 2, 3
*/
P4_OPCODE(P4_EVENT_FRONT_END_EVENT) = P4_OPCODE_PACK(0x08, 0x05),
/*
* MSR_P4_CRU_ESCR2: 12, 13, 16
* MSR_P4_CRU_ESCR3: 14, 15, 17
*/
P4_OPCODE(P4_EVENT_EXECUTION_EVENT) = P4_OPCODE_PACK(0x0c, 0x05),
/*
* MSR_P4_CRU_ESCR2: 12, 13, 16
* MSR_P4_CRU_ESCR3: 14, 15, 17
*/
P4_OPCODE(P4_EVENT_REPLAY_EVENT) = P4_OPCODE_PACK(0x09, 0x05),
/*
* MSR_P4_CRU_ESCR2: 12, 13, 16
* MSR_P4_CRU_ESCR3: 14, 15, 17
*/
P4_OPCODE(P4_EVENT_INSTR_RETIRED) = P4_OPCODE_PACK(0x02, 0x04),
/*
* MSR_P4_CRU_ESCR0: 12, 13, 16
* MSR_P4_CRU_ESCR1: 14, 15, 17
*/
P4_OPCODE(P4_EVENT_UOPS_RETIRED) = P4_OPCODE_PACK(0x01, 0x04),
/*
* MSR_P4_CRU_ESCR0: 12, 13, 16
* MSR_P4_CRU_ESCR1: 14, 15, 17
*/
P4_OPCODE(P4_EVENT_UOP_TYPE) = P4_OPCODE_PACK(0x02, 0x02),
/*
* MSR_P4_RAT_ESCR0: 12, 13, 16
* MSR_P4_RAT_ESCR1: 14, 15, 17
*/
P4_OPCODE(P4_EVENT_BRANCH_RETIRED) = P4_OPCODE_PACK(0x06, 0x05),
/*
* MSR_P4_CRU_ESCR2: 12, 13, 16
* MSR_P4_CRU_ESCR3: 14, 15, 17
*/
P4_OPCODE(P4_EVENT_MISPRED_BRANCH_RETIRED) = P4_OPCODE_PACK(0x03, 0x04),
/*
* MSR_P4_CRU_ESCR0: 12, 13, 16
* MSR_P4_CRU_ESCR1: 14, 15, 17
*/
P4_OPCODE(P4_EVENT_X87_ASSIST) = P4_OPCODE_PACK(0x03, 0x05),
/*
* MSR_P4_CRU_ESCR2: 12, 13, 16
* MSR_P4_CRU_ESCR3: 14, 15, 17
*/
P4_OPCODE(P4_EVENT_MACHINE_CLEAR) = P4_OPCODE_PACK(0x02, 0x05),
/*
* MSR_P4_CRU_ESCR2: 12, 13, 16
* MSR_P4_CRU_ESCR3: 14, 15, 17
*/
P4_OPCODE(P4_EVENT_INSTR_COMPLETED) = P4_OPCODE_PACK(0x07, 0x04),
/*
* MSR_P4_CRU_ESCR0: 12, 13, 16
* MSR_P4_CRU_ESCR1: 14, 15, 17
*/
};
/*
* a caller should use P4_ESCR_EMASK_NAME helper to
* pick the EventMask needed, for example
*
* P4_ESCR_EMASK_BIT(P4_EVENT_TC_DELIVER_MODE, DD)
*/
enum P4_ESCR_EMASKS {
P4_GEN_ESCR_EMASK(P4_EVENT_TC_DELIVER_MODE, DD, 0),
P4_GEN_ESCR_EMASK(P4_EVENT_TC_DELIVER_MODE, DB, 1),
P4_GEN_ESCR_EMASK(P4_EVENT_TC_DELIVER_MODE, DI, 2),
P4_GEN_ESCR_EMASK(P4_EVENT_TC_DELIVER_MODE, BD, 3),
P4_GEN_ESCR_EMASK(P4_EVENT_TC_DELIVER_MODE, BB, 4),
P4_GEN_ESCR_EMASK(P4_EVENT_TC_DELIVER_MODE, BI, 5),
P4_GEN_ESCR_EMASK(P4_EVENT_TC_DELIVER_MODE, ID, 6),
P4_GEN_ESCR_EMASK(P4_EVENT_BPU_FETCH_REQUEST, TCMISS, 0),
P4_GEN_ESCR_EMASK(P4_EVENT_ITLB_REFERENCE, HIT, 0),
P4_GEN_ESCR_EMASK(P4_EVENT_ITLB_REFERENCE, MISS, 1),
P4_GEN_ESCR_EMASK(P4_EVENT_ITLB_REFERENCE, HIT_UK, 2),
P4_GEN_ESCR_EMASK(P4_EVENT_MEMORY_CANCEL, ST_RB_FULL, 2),
P4_GEN_ESCR_EMASK(P4_EVENT_MEMORY_CANCEL, 64K_CONF, 3),
P4_GEN_ESCR_EMASK(P4_EVENT_MEMORY_COMPLETE, LSC, 0),
P4_GEN_ESCR_EMASK(P4_EVENT_MEMORY_COMPLETE, SSC, 1),
P4_GEN_ESCR_EMASK(P4_EVENT_LOAD_PORT_REPLAY, SPLIT_LD, 1),
P4_GEN_ESCR_EMASK(P4_EVENT_STORE_PORT_REPLAY, SPLIT_ST, 1),
P4_GEN_ESCR_EMASK(P4_EVENT_MOB_LOAD_REPLAY, NO_STA, 1),
P4_GEN_ESCR_EMASK(P4_EVENT_MOB_LOAD_REPLAY, NO_STD, 3),
P4_GEN_ESCR_EMASK(P4_EVENT_MOB_LOAD_REPLAY, PARTIAL_DATA, 4),
P4_GEN_ESCR_EMASK(P4_EVENT_MOB_LOAD_REPLAY, UNALGN_ADDR, 5),
P4_GEN_ESCR_EMASK(P4_EVENT_PAGE_WALK_TYPE, DTMISS, 0),
P4_GEN_ESCR_EMASK(P4_EVENT_PAGE_WALK_TYPE, ITMISS, 1),
P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_CACHE_REFERENCE, RD_2ndL_HITS, 0),
P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_CACHE_REFERENCE, RD_2ndL_HITE, 1),
P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_CACHE_REFERENCE, RD_2ndL_HITM, 2),
P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_CACHE_REFERENCE, RD_3rdL_HITS, 3),
P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_CACHE_REFERENCE, RD_3rdL_HITE, 4),
P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_CACHE_REFERENCE, RD_3rdL_HITM, 5),
P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_CACHE_REFERENCE, RD_2ndL_MISS, 8),
P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_CACHE_REFERENCE, RD_3rdL_MISS, 9),
P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_CACHE_REFERENCE, WR_2ndL_MISS, 10),
P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ALLOCATION, DEFAULT, 0),
P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ALLOCATION, ALL_READ, 5),
P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ALLOCATION, ALL_WRITE, 6),
P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ALLOCATION, MEM_UC, 7),
P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ALLOCATION, MEM_WC, 8),
P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ALLOCATION, MEM_WT, 9),
P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ALLOCATION, MEM_WP, 10),
P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ALLOCATION, MEM_WB, 11),
P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ALLOCATION, OWN, 13),
P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ALLOCATION, OTHER, 14),
P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ALLOCATION, PREFETCH, 15),
P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ACTIVE_ENTRIES, DEFAULT, 0),
P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ACTIVE_ENTRIES, ALL_READ, 5),
P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ACTIVE_ENTRIES, ALL_WRITE, 6),
P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ACTIVE_ENTRIES, MEM_UC, 7),
P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ACTIVE_ENTRIES, MEM_WC, 8),
P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ACTIVE_ENTRIES, MEM_WT, 9),
P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ACTIVE_ENTRIES, MEM_WP, 10),
P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ACTIVE_ENTRIES, MEM_WB, 11),
P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ACTIVE_ENTRIES, OWN, 13),
P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ACTIVE_ENTRIES, OTHER, 14),
P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ACTIVE_ENTRIES, PREFETCH, 15),
P4_GEN_ESCR_EMASK(P4_EVENT_FSB_DATA_ACTIVITY, DRDY_DRV, 0),
P4_GEN_ESCR_EMASK(P4_EVENT_FSB_DATA_ACTIVITY, DRDY_OWN, 1),
P4_GEN_ESCR_EMASK(P4_EVENT_FSB_DATA_ACTIVITY, DRDY_OTHER, 2),
P4_GEN_ESCR_EMASK(P4_EVENT_FSB_DATA_ACTIVITY, DBSY_DRV, 3),
P4_GEN_ESCR_EMASK(P4_EVENT_FSB_DATA_ACTIVITY, DBSY_OWN, 4),
P4_GEN_ESCR_EMASK(P4_EVENT_FSB_DATA_ACTIVITY, DBSY_OTHER, 5),
P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ALLOCATION, REQ_TYPE0, 0),
P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ALLOCATION, REQ_TYPE1, 1),
P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ALLOCATION, REQ_LEN0, 2),
P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ALLOCATION, REQ_LEN1, 3),
P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ALLOCATION, REQ_IO_TYPE, 5),
P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ALLOCATION, REQ_LOCK_TYPE, 6),
P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ALLOCATION, REQ_CACHE_TYPE, 7),
P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ALLOCATION, REQ_SPLIT_TYPE, 8),
P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ALLOCATION, REQ_DEM_TYPE, 9),
P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ALLOCATION, REQ_ORD_TYPE, 10),
P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ALLOCATION, MEM_TYPE0, 11),
P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ALLOCATION, MEM_TYPE1, 12),
P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ALLOCATION, MEM_TYPE2, 13),
P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ACTIVE_ENTRIES, REQ_TYPE0, 0),
P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ACTIVE_ENTRIES, REQ_TYPE1, 1),
P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ACTIVE_ENTRIES, REQ_LEN0, 2),
P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ACTIVE_ENTRIES, REQ_LEN1, 3),
P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ACTIVE_ENTRIES, REQ_IO_TYPE, 5),
P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ACTIVE_ENTRIES, REQ_LOCK_TYPE, 6),
P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ACTIVE_ENTRIES, REQ_CACHE_TYPE, 7),
P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ACTIVE_ENTRIES, REQ_SPLIT_TYPE, 8),
P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ACTIVE_ENTRIES, REQ_DEM_TYPE, 9),
P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ACTIVE_ENTRIES, REQ_ORD_TYPE, 10),
P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ACTIVE_ENTRIES, MEM_TYPE0, 11),
P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ACTIVE_ENTRIES, MEM_TYPE1, 12),
P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ACTIVE_ENTRIES, MEM_TYPE2, 13),
P4_GEN_ESCR_EMASK(P4_EVENT_SSE_INPUT_ASSIST, ALL, 15),
P4_GEN_ESCR_EMASK(P4_EVENT_PACKED_SP_UOP, ALL, 15),
P4_GEN_ESCR_EMASK(P4_EVENT_PACKED_DP_UOP, ALL, 15),
P4_GEN_ESCR_EMASK(P4_EVENT_SCALAR_SP_UOP, ALL, 15),
P4_GEN_ESCR_EMASK(P4_EVENT_SCALAR_DP_UOP, ALL, 15),
P4_GEN_ESCR_EMASK(P4_EVENT_64BIT_MMX_UOP, ALL, 15),
P4_GEN_ESCR_EMASK(P4_EVENT_128BIT_MMX_UOP, ALL, 15),
P4_GEN_ESCR_EMASK(P4_EVENT_X87_FP_UOP, ALL, 15),
P4_GEN_ESCR_EMASK(P4_EVENT_TC_MISC, FLUSH, 4),
P4_GEN_ESCR_EMASK(P4_EVENT_GLOBAL_POWER_EVENTS, RUNNING, 0),
P4_GEN_ESCR_EMASK(P4_EVENT_TC_MS_XFER, CISC, 0),
P4_GEN_ESCR_EMASK(P4_EVENT_UOP_QUEUE_WRITES, FROM_TC_BUILD, 0),
P4_GEN_ESCR_EMASK(P4_EVENT_UOP_QUEUE_WRITES, FROM_TC_DELIVER, 1),
P4_GEN_ESCR_EMASK(P4_EVENT_UOP_QUEUE_WRITES, FROM_ROM, 2),
P4_GEN_ESCR_EMASK(P4_EVENT_RETIRED_MISPRED_BRANCH_TYPE, CONDITIONAL, 1),
P4_GEN_ESCR_EMASK(P4_EVENT_RETIRED_MISPRED_BRANCH_TYPE, CALL, 2),
P4_GEN_ESCR_EMASK(P4_EVENT_RETIRED_MISPRED_BRANCH_TYPE, RETURN, 3),
P4_GEN_ESCR_EMASK(P4_EVENT_RETIRED_MISPRED_BRANCH_TYPE, INDIRECT, 4),
P4_GEN_ESCR_EMASK(P4_EVENT_RETIRED_BRANCH_TYPE, CONDITIONAL, 1),
P4_GEN_ESCR_EMASK(P4_EVENT_RETIRED_BRANCH_TYPE, CALL, 2),
P4_GEN_ESCR_EMASK(P4_EVENT_RETIRED_BRANCH_TYPE, RETURN, 3),
P4_GEN_ESCR_EMASK(P4_EVENT_RETIRED_BRANCH_TYPE, INDIRECT, 4),
P4_GEN_ESCR_EMASK(P4_EVENT_RESOURCE_STALL, SBFULL, 5),
P4_GEN_ESCR_EMASK(P4_EVENT_WC_BUFFER, WCB_EVICTS, 0),
P4_GEN_ESCR_EMASK(P4_EVENT_WC_BUFFER, WCB_FULL_EVICTS, 1),
P4_GEN_ESCR_EMASK(P4_EVENT_FRONT_END_EVENT, NBOGUS, 0),
P4_GEN_ESCR_EMASK(P4_EVENT_FRONT_END_EVENT, BOGUS, 1),
P4_GEN_ESCR_EMASK(P4_EVENT_EXECUTION_EVENT, NBOGUS0, 0),
P4_GEN_ESCR_EMASK(P4_EVENT_EXECUTION_EVENT, NBOGUS1, 1),
P4_GEN_ESCR_EMASK(P4_EVENT_EXECUTION_EVENT, NBOGUS2, 2),
P4_GEN_ESCR_EMASK(P4_EVENT_EXECUTION_EVENT, NBOGUS3, 3),
P4_GEN_ESCR_EMASK(P4_EVENT_EXECUTION_EVENT, BOGUS0, 4),
P4_GEN_ESCR_EMASK(P4_EVENT_EXECUTION_EVENT, BOGUS1, 5),
P4_GEN_ESCR_EMASK(P4_EVENT_EXECUTION_EVENT, BOGUS2, 6),
P4_GEN_ESCR_EMASK(P4_EVENT_EXECUTION_EVENT, BOGUS3, 7),
P4_GEN_ESCR_EMASK(P4_EVENT_REPLAY_EVENT, NBOGUS, 0),
P4_GEN_ESCR_EMASK(P4_EVENT_REPLAY_EVENT, BOGUS, 1),
P4_GEN_ESCR_EMASK(P4_EVENT_INSTR_RETIRED, NBOGUSNTAG, 0),
P4_GEN_ESCR_EMASK(P4_EVENT_INSTR_RETIRED, NBOGUSTAG, 1),
P4_GEN_ESCR_EMASK(P4_EVENT_INSTR_RETIRED, BOGUSNTAG, 2),
P4_GEN_ESCR_EMASK(P4_EVENT_INSTR_RETIRED, BOGUSTAG, 3),
P4_GEN_ESCR_EMASK(P4_EVENT_UOPS_RETIRED, NBOGUS, 0),
P4_GEN_ESCR_EMASK(P4_EVENT_UOPS_RETIRED, BOGUS, 1),
P4_GEN_ESCR_EMASK(P4_EVENT_UOP_TYPE, TAGLOADS, 1),
P4_GEN_ESCR_EMASK(P4_EVENT_UOP_TYPE, TAGSTORES, 2),
P4_GEN_ESCR_EMASK(P4_EVENT_BRANCH_RETIRED, MMNP, 0),
P4_GEN_ESCR_EMASK(P4_EVENT_BRANCH_RETIRED, MMNM, 1),
P4_GEN_ESCR_EMASK(P4_EVENT_BRANCH_RETIRED, MMTP, 2),
P4_GEN_ESCR_EMASK(P4_EVENT_BRANCH_RETIRED, MMTM, 3),
P4_GEN_ESCR_EMASK(P4_EVENT_MISPRED_BRANCH_RETIRED, NBOGUS, 0),
P4_GEN_ESCR_EMASK(P4_EVENT_X87_ASSIST, FPSU, 0),
P4_GEN_ESCR_EMASK(P4_EVENT_X87_ASSIST, FPSO, 1),
P4_GEN_ESCR_EMASK(P4_EVENT_X87_ASSIST, POAO, 2),
P4_GEN_ESCR_EMASK(P4_EVENT_X87_ASSIST, POAU, 3),
P4_GEN_ESCR_EMASK(P4_EVENT_X87_ASSIST, PREA, 4),
P4_GEN_ESCR_EMASK(P4_EVENT_MACHINE_CLEAR, CLEAR, 0),
P4_GEN_ESCR_EMASK(P4_EVENT_MACHINE_CLEAR, MOCLEAR, 1),
P4_GEN_ESCR_EMASK(P4_EVENT_MACHINE_CLEAR, SMCLEAR, 2),
P4_GEN_ESCR_EMASK(P4_EVENT_INSTR_COMPLETED, NBOGUS, 0),
P4_GEN_ESCR_EMASK(P4_EVENT_INSTR_COMPLETED, BOGUS, 1),
};
/*
* Note we have UOP and PEBS bits reserved for now
* just in case if we will need them once
*/
#define P4_PEBS_CONFIG_ENABLE (1ULL << 7)
#define P4_PEBS_CONFIG_UOP_TAG (1ULL << 8)
#define P4_PEBS_CONFIG_METRIC_MASK 0x3FLL
#define P4_PEBS_CONFIG_MASK 0xFFLL
/*
* mem: Only counters MSR_IQ_COUNTER4 (16) and
* MSR_IQ_COUNTER5 (17) are allowed for PEBS sampling
*/
#define P4_PEBS_ENABLE 0x02000000ULL
#define P4_PEBS_ENABLE_UOP_TAG 0x01000000ULL
#define p4_config_unpack_metric(v) (((u64)(v)) & P4_PEBS_CONFIG_METRIC_MASK)
#define p4_config_unpack_pebs(v) (((u64)(v)) & P4_PEBS_CONFIG_MASK)
#define p4_config_pebs_has(v, mask) (p4_config_unpack_pebs(v) & (mask))
enum P4_PEBS_METRIC {
P4_PEBS_METRIC__none,
P4_PEBS_METRIC__1stl_cache_load_miss_retired,
P4_PEBS_METRIC__2ndl_cache_load_miss_retired,
P4_PEBS_METRIC__dtlb_load_miss_retired,
P4_PEBS_METRIC__dtlb_store_miss_retired,
P4_PEBS_METRIC__dtlb_all_miss_retired,
P4_PEBS_METRIC__tagged_mispred_branch,
P4_PEBS_METRIC__mob_load_replay_retired,
P4_PEBS_METRIC__split_load_retired,
P4_PEBS_METRIC__split_store_retired,
P4_PEBS_METRIC__max
};
/*
* Notes on internal configuration of ESCR+CCCR tuples
*
* Since P4 has quite the different architecture of
* performance registers in compare with "architectural"
* once and we have on 64 bits to keep configuration
* of performance event, the following trick is used.
*
* 1) Since both ESCR and CCCR registers have only low
* 32 bits valuable, we pack them into a single 64 bit
* configuration. Low 32 bits of such config correspond
* to low 32 bits of CCCR register and high 32 bits
* correspond to low 32 bits of ESCR register.
*
* 2) The meaning of every bit of such config field can
* be found in Intel SDM but it should be noted that
* we "borrow" some reserved bits for own usage and
* clean them or set to a proper value when we do
* a real write to hardware registers.
*
* 3) The format of bits of config is the following
* and should be either 0 or set to some predefined
* values:
*
* Low 32 bits
* -----------
* 0-6: P4_PEBS_METRIC enum
* 7-11: reserved
* 12: reserved (Enable)
* 13-15: reserved (ESCR select)
* 16-17: Active Thread
* 18: Compare
* 19: Complement
* 20-23: Threshold
* 24: Edge
* 25: reserved (FORCE_OVF)
* 26: reserved (OVF_PMI_T0)
* 27: reserved (OVF_PMI_T1)
* 28-29: reserved
* 30: reserved (Cascade)
* 31: reserved (OVF)
*
* High 32 bits
* ------------
* 0: reserved (T1_USR)
* 1: reserved (T1_OS)
* 2: reserved (T0_USR)
* 3: reserved (T0_OS)
* 4: Tag Enable
* 5-8: Tag Value
* 9-24: Event Mask (may use P4_ESCR_EMASK_BIT helper)
* 25-30: enum P4_EVENTS
* 31: reserved (HT thread)
*/
#endif /* PERF_EVENT_P4_H */
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