Hello
It might be too late to hit the release, but the e-mail reminded me to
send this.
This patch brings perf_event_open() support up to date as of 4.14-rc6.
Signed-off-by: Vince Weaver <vincent.weaver@xxxxxxxxx>
diff --git a/include/perf_event.h b/include/perf_event.h
index cb0796fb..fd57a657 100644
--- a/include/perf_event.h
+++ b/include/perf_event.h
@@ -138,8 +138,9 @@ enum perf_event_sample_format {
PERF_SAMPLE_IDENTIFIER = 1U << 16,
PERF_SAMPLE_TRANSACTION = 1U << 17,
PERF_SAMPLE_REGS_INTR = 1U << 18,
+ PERF_SAMPLE_PHYS_ADDR = 1U << 19,
- PERF_SAMPLE_MAX = 1U << 19, /* non-ABI */
+ PERF_SAMPLE_MAX = 1U << 20, /* non-ABI */
};
/*
@@ -173,6 +174,8 @@ enum perf_branch_sample_type_shift {
PERF_SAMPLE_BRANCH_NO_FLAGS_SHIFT = 14, /* no flags */
PERF_SAMPLE_BRANCH_NO_CYCLES_SHIFT = 15, /* no cycles */
+ PERF_SAMPLE_BRANCH_TYPE_SAVE_SHIFT = 16, /* save branch type */
+
PERF_SAMPLE_BRANCH_MAX_SHIFT /* non-ABI */
};
@@ -197,9 +200,30 @@ enum perf_branch_sample_type {
PERF_SAMPLE_BRANCH_NO_FLAGS = 1U << PERF_SAMPLE_BRANCH_NO_FLAGS_SHIFT,
PERF_SAMPLE_BRANCH_NO_CYCLES = 1U << PERF_SAMPLE_BRANCH_NO_CYCLES_SHIFT,
+ PERF_SAMPLE_BRANCH_TYPE_SAVE =
+ 1U << PERF_SAMPLE_BRANCH_TYPE_SAVE_SHIFT,
+
PERF_SAMPLE_BRANCH_MAX = 1U << PERF_SAMPLE_BRANCH_MAX_SHIFT,
};
+/*
+ * Common flow change classification
+ */
+enum {
+ PERF_BR_UNKNOWN = 0, /* unknown */
+ PERF_BR_COND = 1, /* conditional */
+ PERF_BR_UNCOND = 2, /* unconditional */
+ PERF_BR_IND = 3, /* indirect */
+ PERF_BR_CALL = 4, /* function call */
+ PERF_BR_IND_CALL = 5, /* indirect function call */
+ PERF_BR_RET = 6, /* function return */
+ PERF_BR_SYSCALL = 7, /* syscall */
+ PERF_BR_SYSRET = 8, /* syscall return */
+ PERF_BR_COND_CALL = 9, /* conditional function call */
+ PERF_BR_COND_RET = 10, /* conditional function return */
+ PERF_BR_MAX,
+};
+
#define PERF_SAMPLE_BRANCH_PLM_ALL \
(PERF_SAMPLE_BRANCH_USER|\
PERF_SAMPLE_BRANCH_KERNEL|\
@@ -343,7 +367,8 @@ struct perf_event_attr {
use_clockid : 1, /* use @clockid for time fields */
context_switch : 1, /* context switch data */
write_backward : 1, /* Write ring buffer from end to beginning */
- __reserved_1 : 36;
+ namespaces : 1, /* include namespaces data */
+ __reserved_1 : 35;
union {
__u32 wakeup_events; /* wakeup every n events */
@@ -609,6 +634,23 @@ struct perf_event_header {
__u16 size;
};
+struct perf_ns_link_info {
+ __u64 dev;
+ __u64 ino;
+};
+
+enum {
+ NET_NS_INDEX = 0,
+ UTS_NS_INDEX = 1,
+ IPC_NS_INDEX = 2,
+ PID_NS_INDEX = 3,
+ USER_NS_INDEX = 4,
+ MNT_NS_INDEX = 5,
+ CGROUP_NS_INDEX = 6,
+
+ NR_NAMESPACES, /* number of available namespaces */
+};
+
enum perf_event_type {
/*
@@ -772,6 +814,7 @@ enum perf_event_type {
* { u64 transaction; } && PERF_SAMPLE_TRANSACTION
* { u64 abi; # enum perf_sample_regs_abi
* u64 regs[weight(mask)]; } && PERF_SAMPLE_REGS_INTR
+ * { u64 phys_addr;} && PERF_SAMPLE_PHYS_ADDR
* };
*/
PERF_RECORD_SAMPLE = 9,
@@ -861,6 +904,18 @@ enum perf_event_type {
*/
PERF_RECORD_SWITCH_CPU_WIDE = 15,
+ /*
+ * struct {
+ * struct perf_event_header header;
+ * u32 pid;
+ * u32 tid;
+ * u64 nr_namespaces;
+ * { u64 dev, inode; } [nr_namespaces];
+ * struct sample_id sample_id;
+ * };
+ */
+ PERF_RECORD_NAMESPACES = 16,
+
PERF_RECORD_MAX, /* non-ABI */
};
@@ -884,12 +939,14 @@ enum perf_callchain_context {
*/
#define PERF_AUX_FLAG_TRUNCATED 0x01 /* record was truncated to fit */
#define PERF_AUX_FLAG_OVERWRITE 0x02 /* snapshot from overwrite mode */
+#define PERF_AUX_FLAG_PARTIAL 0x04 /* record contains gaps */
#define PERF_FLAG_FD_NO_GROUP (1UL << 0)
#define PERF_FLAG_FD_OUTPUT (1UL << 1)
#define PERF_FLAG_PID_CGROUP (1UL << 2) /* pid=cgroup id, per-cpu mode only */
#define PERF_FLAG_FD_CLOEXEC (1UL << 3) /* O_CLOEXEC */
+#if defined(__LITTLE_ENDIAN_BITFIELD)
union perf_mem_data_src {
__u64 val;
struct {
@@ -898,9 +955,30 @@ union perf_mem_data_src {
mem_snoop:5, /* snoop mode */
mem_lock:2, /* lock instr */
mem_dtlb:7, /* tlb access */
- mem_rsvd:31;
+ mem_lvl_num:4, /* memory hierarchy level number */
+ mem_remote:1, /* remote */
+ mem_snoopx:2, /* snoop mode, ext */
+ mem_rsvd:24;
};
};
+#elif defined(__BIG_ENDIAN_BITFIELD)
+union perf_mem_data_src {
+ __u64 val;
+ struct {
+ __u64 mem_rsvd:24,
+ mem_snoopx:2, /* snoop mode, ext */
+ mem_remote:1, /* remote */
+ mem_lvl_num:4, /* memory hierarchy level number */
+ mem_dtlb:7, /* tlb access */
+ mem_lock:2, /* lock instr */
+ mem_snoop:5, /* snoop mode */
+ mem_lvl:14, /* memory hierarchy level */
+ mem_op:5; /* type of opcode */
+ };
+};
+#else
+#error "Unknown endianness"
+#endif
/* type of opcode (load/store/prefetch,code) */
#define PERF_MEM_OP_NA 0x01 /* not available */
@@ -927,6 +1005,22 @@ union perf_mem_data_src {
#define PERF_MEM_LVL_UNC 0x2000 /* Uncached memory */
#define PERF_MEM_LVL_SHIFT 5
+#define PERF_MEM_REMOTE_REMOTE 0x01 /* Remote */
+#define PERF_MEM_REMOTE_SHIFT 37
+
+#define PERF_MEM_LVLNUM_L1 0x01 /* L1 */
+#define PERF_MEM_LVLNUM_L2 0x02 /* L2 */
+#define PERF_MEM_LVLNUM_L3 0x03 /* L3 */
+#define PERF_MEM_LVLNUM_L4 0x04 /* L4 */
+/* 5-0xa available */
+#define PERF_MEM_LVLNUM_ANY_CACHE 0x0b /* Any cache */
+#define PERF_MEM_LVLNUM_LFB 0x0c /* LFB */
+#define PERF_MEM_LVLNUM_RAM 0x0d /* RAM */
+#define PERF_MEM_LVLNUM_PMEM 0x0e /* PMEM */
+#define PERF_MEM_LVLNUM_NA 0x0f /* N/A */
+
+#define PERF_MEM_LVLNUM_SHIFT 33
+
/* snoop mode */
#define PERF_MEM_SNOOP_NA 0x01 /* not available */
#define PERF_MEM_SNOOP_NONE 0x02 /* no snoop */
@@ -935,6 +1029,10 @@ union perf_mem_data_src {
#define PERF_MEM_SNOOP_HITM 0x10 /* snoop hit modified */
#define PERF_MEM_SNOOP_SHIFT 19
+#define PERF_MEM_SNOOPX_FWD 0x01 /* forward */
+/* 1 free */
+#define PERF_MEM_SNOOPX_SHIFT 37
+
/* locked instruction */
#define PERF_MEM_LOCK_NA 0x01 /* not available */
#define PERF_MEM_LOCK_LOCKED 0x02 /* locked transaction */
@@ -967,6 +1065,7 @@ union perf_mem_data_src {
* in_tx: running in a hardware transaction
* abort: aborting a hardware transaction
* cycles: cycles from last branch (or 0 if not supported)
+ * type: branch type
*/
struct perf_branch_entry {
__u64 from;
@@ -976,5 +1075,6 @@ struct perf_branch_entry {
in_tx:1, /* in transaction */
abort:1, /* transaction abort */
cycles:16, /* cycle count to last branch */
- reserved:44;
+ type:4, /* branch type */
+ reserved:40;
};
diff --git a/syscalls/perf_event_open.c b/syscalls/perf_event_open.c
index 6cecee88..10106b59 100644
--- a/syscalls/perf_event_open.c
+++ b/syscalls/perf_event_open.c
@@ -879,6 +879,8 @@ static long long random_sample_type(void)
sample_type |= PERF_SAMPLE_TRANSACTION;
if (RAND_BOOL())
sample_type |= PERF_SAMPLE_REGS_INTR;
+ if (RAND_BOOL())
+ sample_type |= PERF_SAMPLE_PHYS_ADDR;
return sample_type;
}
@@ -958,6 +960,16 @@ static long long random_branch_sample_type(void)
branch_sample |= PERF_SAMPLE_BRANCH_ANY_RETURN;
if (RAND_BOOL())
branch_sample |= PERF_SAMPLE_BRANCH_IND_CALL;
+
+ /* Transactional Memory Types */
+ if (RAND_BOOL())
+ branch_sample |= PERF_SAMPLE_BRANCH_ABORT_TX;
+ if (RAND_BOOL())
+ branch_sample |= PERF_SAMPLE_BRANCH_IN_TX;
+ if (RAND_BOOL())
+ branch_sample |= PERF_SAMPLE_BRANCH_NO_TX;
+
+
if (RAND_BOOL())
branch_sample |= PERF_SAMPLE_BRANCH_COND;
if (RAND_BOOL())
@@ -966,14 +978,13 @@ static long long random_branch_sample_type(void)
branch_sample |= PERF_SAMPLE_BRANCH_IND_JUMP;
if (RAND_BOOL())
branch_sample |= PERF_SAMPLE_BRANCH_CALL;
-
- /* Transactional Memory Types */
if (RAND_BOOL())
- branch_sample |= PERF_SAMPLE_BRANCH_ABORT_TX;
+ branch_sample |= PERF_SAMPLE_BRANCH_NO_FLAGS;
if (RAND_BOOL())
- branch_sample |= PERF_SAMPLE_BRANCH_IN_TX;
+ branch_sample |= PERF_SAMPLE_BRANCH_NO_CYCLES;
if (RAND_BOOL())
- branch_sample |= PERF_SAMPLE_BRANCH_NO_TX;
+ branch_sample |= PERF_SAMPLE_BRANCH_TYPE_SAVE;
+
return branch_sample;
}
--
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