1 files changed, 98 insertions, 17 deletions

diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h
index 9b79abbd1ab8..309211b3eb67 100644
--- a/include/uapi/linux/perf_event.h
+++ b/include/uapi/linux/perf_event.h
@@ -152,21 +152,42 @@ enum perf_event_sample_format {
  * The branch types can be combined, however BRANCH_ANY covers all types
  * of branches and therefore it supersedes all the other types.
  */
+enum perf_branch_sample_type_shift {
+        PERF_SAMPLE_BRANCH_USER_SHIFT           = 0, /* user branches */
+        PERF_SAMPLE_BRANCH_KERNEL_SHIFT         = 1, /* kernel branches */
+        PERF_SAMPLE_BRANCH_HV_SHIFT             = 2, /* hypervisor branches */
+
+        PERF_SAMPLE_BRANCH_ANY_SHIFT            = 3, /* any branch types */
+        PERF_SAMPLE_BRANCH_ANY_CALL_SHIFT       = 4, /* any call branch */
+        PERF_SAMPLE_BRANCH_ANY_RETURN_SHIFT     = 5, /* any return branch */
+        PERF_SAMPLE_BRANCH_IND_CALL_SHIFT       = 6, /* indirect calls */
+        PERF_SAMPLE_BRANCH_ABORT_TX_SHIFT       = 7, /* transaction aborts */
+        PERF_SAMPLE_BRANCH_IN_TX_SHIFT          = 8, /* in transaction */
+        PERF_SAMPLE_BRANCH_NO_TX_SHIFT          = 9, /* not in transaction */
+        PERF_SAMPLE_BRANCH_COND_SHIFT           = 10, /* conditional branches */
+
+        PERF_SAMPLE_BRANCH_CALL_STACK_SHIFT     = 11, /* call/ret stack */
+
+        PERF_SAMPLE_BRANCH_MAX_SHIFT            /* non-ABI */
+};
+
 enum perf_branch_sample_type {
-        PERF_SAMPLE_BRANCH_USER         = 1U << 0, /* user branches */
-        PERF_SAMPLE_BRANCH_KERNEL       = 1U << 1, /* kernel branches */
-        PERF_SAMPLE_BRANCH_HV           = 1U << 2, /* hypervisor branches */
-
-        PERF_SAMPLE_BRANCH_ANY          = 1U << 3, /* any branch types */
-        PERF_SAMPLE_BRANCH_ANY_CALL     = 1U << 4, /* any call branch */
-        PERF_SAMPLE_BRANCH_ANY_RETURN   = 1U << 5, /* any return branch */
-        PERF_SAMPLE_BRANCH_IND_CALL     = 1U << 6, /* indirect calls */
-        PERF_SAMPLE_BRANCH_ABORT_TX     = 1U << 7, /* transaction aborts */
-        PERF_SAMPLE_BRANCH_IN_TX        = 1U << 8, /* in transaction */
-        PERF_SAMPLE_BRANCH_NO_TX        = 1U << 9, /* not in transaction */
-        PERF_SAMPLE_BRANCH_COND         = 1U << 10, /* conditional branches */
-
-        PERF_SAMPLE_BRANCH_MAX          = 1U << 11, /* non-ABI */
+        PERF_SAMPLE_BRANCH_USER         = 1U << PERF_SAMPLE_BRANCH_USER_SHIFT,
+        PERF_SAMPLE_BRANCH_KERNEL       = 1U << PERF_SAMPLE_BRANCH_KERNEL_SHIFT,
+        PERF_SAMPLE_BRANCH_HV           = 1U << PERF_SAMPLE_BRANCH_HV_SHIFT,
+
+        PERF_SAMPLE_BRANCH_ANY          = 1U << PERF_SAMPLE_BRANCH_ANY_SHIFT,
+        PERF_SAMPLE_BRANCH_ANY_CALL     = 1U << PERF_SAMPLE_BRANCH_ANY_CALL_SHIFT,
+        PERF_SAMPLE_BRANCH_ANY_RETURN   = 1U << PERF_SAMPLE_BRANCH_ANY_RETURN_SHIFT,
+        PERF_SAMPLE_BRANCH_IND_CALL     = 1U << PERF_SAMPLE_BRANCH_IND_CALL_SHIFT,
+        PERF_SAMPLE_BRANCH_ABORT_TX     = 1U << PERF_SAMPLE_BRANCH_ABORT_TX_SHIFT,
+        PERF_SAMPLE_BRANCH_IN_TX        = 1U << PERF_SAMPLE_BRANCH_IN_TX_SHIFT,
+        PERF_SAMPLE_BRANCH_NO_TX        = 1U << PERF_SAMPLE_BRANCH_NO_TX_SHIFT,
+        PERF_SAMPLE_BRANCH_COND         = 1U << PERF_SAMPLE_BRANCH_COND_SHIFT,
+
+        PERF_SAMPLE_BRANCH_CALL_STACK   = 1U << PERF_SAMPLE_BRANCH_CALL_STACK_SHIFT,
+
+        PERF_SAMPLE_BRANCH_MAX          = 1U << PERF_SAMPLE_BRANCH_MAX_SHIFT,
 };
 
 #define PERF_SAMPLE_BRANCH_PLM_ALL \
@@ -240,6 +261,7 @@ enum perf_event_read_format {
 #define PERF_ATTR_SIZE_VER3     96      /* add: sample_regs_user */
                                         /* add: sample_stack_user */
 #define PERF_ATTR_SIZE_VER4     104     /* add: sample_regs_intr */
+#define PERF_ATTR_SIZE_VER5     112     /* add: aux_watermark */
 
 /*
  * Hardware event_id to monitor via a performance monitoring event:
@@ -305,7 +327,8 @@ struct perf_event_attr {
                                 exclude_callchain_user   : 1, /* exclude user callchains */
                                 mmap2          :  1, /* include mmap with inode data     */
                                 comm_exec      :  1, /* flag comm events that are due to an exec */
-                                __reserved_1   : 39;
+                                use_clockid    :  1, /* use @clockid for time fields */
+                                __reserved_1   : 38;
 
         union {
                 __u32           wakeup_events;    /* wakeup every n events */
@@ -334,8 +357,7 @@ struct perf_event_attr {
          */
         __u32   sample_stack_user;
 
-        /* Align to u64. */
-        __u32   __reserved_2;
+        __s32   clockid;
         /*
          * Defines set of regs to dump for each sample
          * state captured on:
@@ -345,6 +367,12 @@ struct perf_event_attr {
          * See asm/perf_regs.h for details.
          */
         __u64   sample_regs_intr;
+
+        /*
+         * Wakeup watermark for AUX area
+         */
+        __u32   aux_watermark;
+        __u32   __reserved_2;   /* align to __u64 */
 };
 
 #define perf_flags(attr)        (*(&(attr)->read_format + 1))
@@ -360,6 +388,7 @@ struct perf_event_attr {
 #define PERF_EVENT_IOC_SET_OUTPUT       _IO ('$', 5)
 #define PERF_EVENT_IOC_SET_FILTER       _IOW('$', 6, char *)
 #define PERF_EVENT_IOC_ID               _IOR('$', 7, __u64 *)
+#define PERF_EVENT_IOC_SET_BPF          _IOW('$', 8, __u32)
 
 enum perf_event_ioc_flags {
         PERF_IOC_FLAG_GROUP             = 1U << 0,
@@ -500,9 +529,30 @@ struct perf_event_mmap_page {
          * In this case the kernel will not over-write unread data.
          *
          * See perf_output_put_handle() for the data ordering.
+         *
+         * data_{offset,size} indicate the location and size of the perf record
+         * buffer within the mmapped area.
          */
         __u64   data_head;              /* head in the data section */
         __u64   data_tail;              /* user-space written tail */
+        __u64   data_offset;            /* where the buffer starts */
+        __u64   data_size;              /* data buffer size */
+
+        /*
+         * AUX area is defined by aux_{offset,size} fields that should be set
+         * by the userspace, so that
+         *
+         *   aux_offset >= data_offset + data_size
+         *
+         * prior to mmap()ing it. Size of the mmap()ed area should be aux_size.
+         *
+         * Ring buffer pointers aux_{head,tail} have the same semantics as
+         * data_{head,tail} and same ordering rules apply.
+         */
+        __u64   aux_head;
+        __u64   aux_tail;
+        __u64   aux_offset;
+        __u64   aux_size;
 };
 
 #define PERF_RECORD_MISC_CPUMODE_MASK           (7 << 0)
@@ -725,6 +775,31 @@ enum perf_event_type {
          */
         PERF_RECORD_MMAP2                       = 10,
 
+        /*
+         * Records that new data landed in the AUX buffer part.
+         *
+         * struct {
+         *      struct perf_event_header        header;
+         *
+         *      u64                             aux_offset;
+         *      u64                             aux_size;
+         *      u64                             flags;
+         *      struct sample_id                sample_id;
+         * };
+         */
+        PERF_RECORD_AUX                         = 11,
+
+        /*
+         * Indicates that instruction trace has started
+         *
+         * struct {
+         *      struct perf_event_header        header;
+         *      u32                             pid;
+         *      u32                             tid;
+         * };
+         */
+        PERF_RECORD_ITRACE_START                = 12,
+
         PERF_RECORD_MAX,                        /* non-ABI */
 };
 
@@ -742,6 +817,12 @@ enum perf_callchain_context {
         PERF_CONTEXT_MAX                = (__u64)-4095,
 };
 
+/**
+ * PERF_RECORD_AUX::flags bits
+ */
+#define PERF_AUX_FLAG_TRUNCATED         0x01    /* record was truncated to fit */
+#define PERF_AUX_FLAG_OVERWRITE         0x02    /* snapshot from overwrite mode */
+
 #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 */