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linux/drivers/gpu/drm/i915/i915_trace.h
Chris Wilson 65e4760e39 drm/i915: Introduce a global_seqno for each request 
Though we will have multiple timelines, we still have a single timeline
of execution. This we can use to provide an execution and retirement order
of requests. This keeps tracking execution of requests simple, and vital
for preserving a single waiter (i.e. so that we can order the waiters so
that only the earliest to wakeup need be woken). To accomplish this we
distinguish the seqno used to order requests per-context (external) and
that used internally for execution.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161028125858.23563-26-chris@chris-wilson.co.uk
2016-10-28 20:53:53 +01:00

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#if !defined(_I915_TRACE_H_) || defined(TRACE_HEADER_MULTI_READ)
#define _I915_TRACE_H_
#include <linux/stringify.h>
#include <linux/types.h>
#include <linux/tracepoint.h>
#include <drm/drmP.h>
#include "i915_drv.h"
#include "intel_drv.h"
#include "intel_ringbuffer.h"
#undef TRACE_SYSTEM
#define TRACE_SYSTEM i915
#define TRACE_INCLUDE_FILE i915_trace
/* pipe updates */
TRACE_EVENT(i915_pipe_update_start,
TP_PROTO(struct intel_crtc *crtc),
TP_ARGS(crtc),
TP_STRUCT__entry(
__field(enum pipe, pipe)
__field(u32, frame)
__field(u32, scanline)
__field(u32, min)
__field(u32, max)
),
TP_fast_assign(
__entry->pipe = crtc->pipe;
__entry->frame = crtc->base.dev->driver->get_vblank_counter(crtc->base.dev,
crtc->pipe);
__entry->scanline = intel_get_crtc_scanline(crtc);
__entry->min = crtc->debug.min_vbl;
__entry->max = crtc->debug.max_vbl;
),
TP_printk("pipe %c, frame=%u, scanline=%u, min=%u, max=%u",
pipe_name(__entry->pipe), __entry->frame,
__entry->scanline, __entry->min, __entry->max)
);
TRACE_EVENT(i915_pipe_update_vblank_evaded,
TP_PROTO(struct intel_crtc *crtc),
TP_ARGS(crtc),
TP_STRUCT__entry(
__field(enum pipe, pipe)
__field(u32, frame)
__field(u32, scanline)
__field(u32, min)
__field(u32, max)
),
TP_fast_assign(
__entry->pipe = crtc->pipe;
__entry->frame = crtc->debug.start_vbl_count;
__entry->scanline = crtc->debug.scanline_start;
__entry->min = crtc->debug.min_vbl;
__entry->max = crtc->debug.max_vbl;
),
TP_printk("pipe %c, frame=%u, scanline=%u, min=%u, max=%u",
pipe_name(__entry->pipe), __entry->frame,
__entry->scanline, __entry->min, __entry->max)
);
TRACE_EVENT(i915_pipe_update_end,
TP_PROTO(struct intel_crtc *crtc, u32 frame, int scanline_end),
TP_ARGS(crtc, frame, scanline_end),
TP_STRUCT__entry(
__field(enum pipe, pipe)
__field(u32, frame)
__field(u32, scanline)
),
TP_fast_assign(
__entry->pipe = crtc->pipe;
__entry->frame = frame;
__entry->scanline = scanline_end;
),
TP_printk("pipe %c, frame=%u, scanline=%u",
pipe_name(__entry->pipe), __entry->frame,
__entry->scanline)
);
/* object tracking */
TRACE_EVENT(i915_gem_object_create,
TP_PROTO(struct drm_i915_gem_object *obj),
TP_ARGS(obj),
TP_STRUCT__entry(
__field(struct drm_i915_gem_object *, obj)
__field(u32, size)
),
TP_fast_assign(
__entry->obj = obj;
__entry->size = obj->base.size;
),
TP_printk("obj=%p, size=%u", __entry->obj, __entry->size)
);
TRACE_EVENT(i915_gem_shrink,
TP_PROTO(struct drm_i915_private *i915, unsigned long target, unsigned flags),
TP_ARGS(i915, target, flags),
TP_STRUCT__entry(
__field(int, dev)
__field(unsigned long, target)
__field(unsigned, flags)
),
TP_fast_assign(
__entry->dev = i915->drm.primary->index;
__entry->target = target;
__entry->flags = flags;
),
TP_printk("dev=%d, target=%lu, flags=%x",
__entry->dev, __entry->target, __entry->flags)
);
TRACE_EVENT(i915_vma_bind,
TP_PROTO(struct i915_vma *vma, unsigned flags),
TP_ARGS(vma, flags),
TP_STRUCT__entry(
__field(struct drm_i915_gem_object *, obj)
__field(struct i915_address_space *, vm)
__field(u64, offset)
__field(u32, size)
__field(unsigned, flags)
),
TP_fast_assign(
__entry->obj = vma->obj;
__entry->vm = vma->vm;
__entry->offset = vma->node.start;
__entry->size = vma->node.size;
__entry->flags = flags;
),
TP_printk("obj=%p, offset=%016llx size=%x%s vm=%p",
__entry->obj, __entry->offset, __entry->size,
__entry->flags & PIN_MAPPABLE ? ", mappable" : "",
__entry->vm)
);
TRACE_EVENT(i915_vma_unbind,
TP_PROTO(struct i915_vma *vma),
TP_ARGS(vma),
TP_STRUCT__entry(
__field(struct drm_i915_gem_object *, obj)
__field(struct i915_address_space *, vm)
__field(u64, offset)
__field(u32, size)
),
TP_fast_assign(
__entry->obj = vma->obj;
__entry->vm = vma->vm;
__entry->offset = vma->node.start;
__entry->size = vma->node.size;
),
TP_printk("obj=%p, offset=%016llx size=%x vm=%p",
__entry->obj, __entry->offset, __entry->size, __entry->vm)
);
TRACE_EVENT(i915_va_alloc,
TP_PROTO(struct i915_vma *vma),
TP_ARGS(vma),
TP_STRUCT__entry(
__field(struct i915_address_space *, vm)
__field(u64, start)
__field(u64, end)
),
TP_fast_assign(
__entry->vm = vma->vm;
__entry->start = vma->node.start;
__entry->end = vma->node.start + vma->node.size - 1;
),
TP_printk("vm=%p (%c), 0x%llx-0x%llx",
__entry->vm, i915_is_ggtt(__entry->vm) ? 'G' : 'P', __entry->start, __entry->end)
);
DECLARE_EVENT_CLASS(i915_px_entry,
TP_PROTO(struct i915_address_space *vm, u32 px, u64 start, u64 px_shift),
TP_ARGS(vm, px, start, px_shift),
TP_STRUCT__entry(
__field(struct i915_address_space *, vm)
__field(u32, px)
__field(u64, start)
__field(u64, end)
),
TP_fast_assign(
__entry->vm = vm;
__entry->px = px;
__entry->start = start;
__entry->end = ((start + (1ULL << px_shift)) & ~((1ULL << px_shift)-1)) - 1;
),
TP_printk("vm=%p, pde=%d (0x%llx-0x%llx)",
__entry->vm, __entry->px, __entry->start, __entry->end)
);
DEFINE_EVENT(i915_px_entry, i915_page_table_entry_alloc,
TP_PROTO(struct i915_address_space *vm, u32 pde, u64 start, u64 pde_shift),
TP_ARGS(vm, pde, start, pde_shift)
);
DEFINE_EVENT_PRINT(i915_px_entry, i915_page_directory_entry_alloc,
TP_PROTO(struct i915_address_space *vm, u32 pdpe, u64 start, u64 pdpe_shift),
TP_ARGS(vm, pdpe, start, pdpe_shift),
TP_printk("vm=%p, pdpe=%d (0x%llx-0x%llx)",
__entry->vm, __entry->px, __entry->start, __entry->end)
);
DEFINE_EVENT_PRINT(i915_px_entry, i915_page_directory_pointer_entry_alloc,
TP_PROTO(struct i915_address_space *vm, u32 pml4e, u64 start, u64 pml4e_shift),
TP_ARGS(vm, pml4e, start, pml4e_shift),
TP_printk("vm=%p, pml4e=%d (0x%llx-0x%llx)",
__entry->vm, __entry->px, __entry->start, __entry->end)
);
/* Avoid extra math because we only support two sizes. The format is defined by
* bitmap_scnprintf. Each 32 bits is 8 HEX digits followed by comma */
#define TRACE_PT_SIZE(bits) \
((((bits) == 1024) ? 288 : 144) + 1)
DECLARE_EVENT_CLASS(i915_page_table_entry_update,
TP_PROTO(struct i915_address_space *vm, u32 pde,
struct i915_page_table *pt, u32 first, u32 count, u32 bits),
TP_ARGS(vm, pde, pt, first, count, bits),
TP_STRUCT__entry(
__field(struct i915_address_space *, vm)
__field(u32, pde)
__field(u32, first)
__field(u32, last)
__dynamic_array(char, cur_ptes, TRACE_PT_SIZE(bits))
),
TP_fast_assign(
__entry->vm = vm;
__entry->pde = pde;
__entry->first = first;
__entry->last = first + count - 1;
scnprintf(__get_str(cur_ptes),
TRACE_PT_SIZE(bits),
"%*pb",
bits,
pt->used_ptes);
),
TP_printk("vm=%p, pde=%d, updating %u:%u\t%s",
__entry->vm, __entry->pde, __entry->last, __entry->first,
__get_str(cur_ptes))
);
DEFINE_EVENT(i915_page_table_entry_update, i915_page_table_entry_map,
TP_PROTO(struct i915_address_space *vm, u32 pde,
struct i915_page_table *pt, u32 first, u32 count, u32 bits),
TP_ARGS(vm, pde, pt, first, count, bits)
);
TRACE_EVENT(i915_gem_object_change_domain,
TP_PROTO(struct drm_i915_gem_object *obj, u32 old_read, u32 old_write),
TP_ARGS(obj, old_read, old_write),
TP_STRUCT__entry(
__field(struct drm_i915_gem_object *, obj)
__field(u32, read_domains)
__field(u32, write_domain)
),
TP_fast_assign(
__entry->obj = obj;
__entry->read_domains = obj->base.read_domains | (old_read << 16);
__entry->write_domain = obj->base.write_domain | (old_write << 16);
),
TP_printk("obj=%p, read=%02x=>%02x, write=%02x=>%02x",
__entry->obj,
__entry->read_domains >> 16,
__entry->read_domains & 0xffff,
__entry->write_domain >> 16,
__entry->write_domain & 0xffff)
);
TRACE_EVENT(i915_gem_object_pwrite,
TP_PROTO(struct drm_i915_gem_object *obj, u32 offset, u32 len),
TP_ARGS(obj, offset, len),
TP_STRUCT__entry(
__field(struct drm_i915_gem_object *, obj)
__field(u32, offset)
__field(u32, len)
),
TP_fast_assign(
__entry->obj = obj;
__entry->offset = offset;
__entry->len = len;
),
TP_printk("obj=%p, offset=%u, len=%u",
__entry->obj, __entry->offset, __entry->len)
);
TRACE_EVENT(i915_gem_object_pread,
TP_PROTO(struct drm_i915_gem_object *obj, u32 offset, u32 len),
TP_ARGS(obj, offset, len),
TP_STRUCT__entry(
__field(struct drm_i915_gem_object *, obj)
__field(u32, offset)
__field(u32, len)
),
TP_fast_assign(
__entry->obj = obj;
__entry->offset = offset;
__entry->len = len;
),
TP_printk("obj=%p, offset=%u, len=%u",
__entry->obj, __entry->offset, __entry->len)
);
TRACE_EVENT(i915_gem_object_fault,
TP_PROTO(struct drm_i915_gem_object *obj, u32 index, bool gtt, bool write),
TP_ARGS(obj, index, gtt, write),
TP_STRUCT__entry(
__field(struct drm_i915_gem_object *, obj)
__field(u32, index)
__field(bool, gtt)
__field(bool, write)
),
TP_fast_assign(
__entry->obj = obj;
__entry->index = index;
__entry->gtt = gtt;
__entry->write = write;
),
TP_printk("obj=%p, %s index=%u %s",
__entry->obj,
__entry->gtt ? "GTT" : "CPU",
__entry->index,
__entry->write ? ", writable" : "")
);
DECLARE_EVENT_CLASS(i915_gem_object,
TP_PROTO(struct drm_i915_gem_object *obj),
TP_ARGS(obj),
TP_STRUCT__entry(
__field(struct drm_i915_gem_object *, obj)
),
TP_fast_assign(
__entry->obj = obj;
),
TP_printk("obj=%p", __entry->obj)
);
DEFINE_EVENT(i915_gem_object, i915_gem_object_clflush,
TP_PROTO(struct drm_i915_gem_object *obj),
TP_ARGS(obj)
);
DEFINE_EVENT(i915_gem_object, i915_gem_object_destroy,
TP_PROTO(struct drm_i915_gem_object *obj),
TP_ARGS(obj)
);
TRACE_EVENT(i915_gem_evict,
TP_PROTO(struct i915_address_space *vm, u32 size, u32 align, unsigned int flags),
TP_ARGS(vm, size, align, flags),
TP_STRUCT__entry(
__field(u32, dev)
__field(struct i915_address_space *, vm)
__field(u32, size)
__field(u32, align)
__field(unsigned int, flags)
),
TP_fast_assign(
__entry->dev = vm->dev->primary->index;
__entry->vm = vm;
__entry->size = size;
__entry->align = align;
__entry->flags = flags;
),
TP_printk("dev=%d, vm=%p, size=%d, align=%d %s",
__entry->dev, __entry->vm, __entry->size, __entry->align,
__entry->flags & PIN_MAPPABLE ? ", mappable" : "")
);
TRACE_EVENT(i915_gem_evict_everything,
TP_PROTO(struct drm_device *dev),
TP_ARGS(dev),
TP_STRUCT__entry(
__field(u32, dev)
),
TP_fast_assign(
__entry->dev = dev->primary->index;
),
TP_printk("dev=%d", __entry->dev)
);
TRACE_EVENT(i915_gem_evict_vm,
TP_PROTO(struct i915_address_space *vm),
TP_ARGS(vm),
TP_STRUCT__entry(
__field(u32, dev)
__field(struct i915_address_space *, vm)
),
TP_fast_assign(
__entry->dev = vm->dev->primary->index;
__entry->vm = vm;
),
TP_printk("dev=%d, vm=%p", __entry->dev, __entry->vm)
);
TRACE_EVENT(i915_gem_ring_sync_to,
TP_PROTO(struct drm_i915_gem_request *to,
struct drm_i915_gem_request *from),
TP_ARGS(to, from),
TP_STRUCT__entry(
__field(u32, dev)
__field(u32, sync_from)
__field(u32, sync_to)
__field(u32, seqno)
),
TP_fast_assign(
__entry->dev = from->i915->drm.primary->index;
__entry->sync_from = from->engine->id;
__entry->sync_to = to->engine->id;
__entry->seqno = from->global_seqno;
),
TP_printk("dev=%u, sync-from=%u, sync-to=%u, seqno=%u",
__entry->dev,
__entry->sync_from, __entry->sync_to,
__entry->seqno)
);
TRACE_EVENT(i915_gem_ring_dispatch,
TP_PROTO(struct drm_i915_gem_request *req, u32 flags),
TP_ARGS(req, flags),
TP_STRUCT__entry(
__field(u32, dev)
__field(u32, ring)
__field(u32, seqno)
__field(u32, flags)
),
TP_fast_assign(
__entry->dev = req->i915->drm.primary->index;
__entry->ring = req->engine->id;
__entry->seqno = req->global_seqno;
__entry->flags = flags;
dma_fence_enable_sw_signaling(&req->fence);
),
TP_printk("dev=%u, ring=%u, seqno=%u, flags=%x",
__entry->dev, __entry->ring, __entry->seqno, __entry->flags)
);
TRACE_EVENT(i915_gem_ring_flush,
TP_PROTO(struct drm_i915_gem_request *req, u32 invalidate, u32 flush),
TP_ARGS(req, invalidate, flush),
TP_STRUCT__entry(
__field(u32, dev)
__field(u32, ring)
__field(u32, invalidate)
__field(u32, flush)
),
TP_fast_assign(
__entry->dev = req->i915->drm.primary->index;
__entry->ring = req->engine->id;
__entry->invalidate = invalidate;
__entry->flush = flush;
),
TP_printk("dev=%u, ring=%x, invalidate=%04x, flush=%04x",
__entry->dev, __entry->ring,
__entry->invalidate, __entry->flush)
);
DECLARE_EVENT_CLASS(i915_gem_request,
TP_PROTO(struct drm_i915_gem_request *req),
TP_ARGS(req),
TP_STRUCT__entry(
__field(u32, dev)
__field(u32, ring)
__field(u32, seqno)
),
TP_fast_assign(
__entry->dev = req->i915->drm.primary->index;
__entry->ring = req->engine->id;
__entry->seqno = req->global_seqno;
),
TP_printk("dev=%u, ring=%u, seqno=%u",
__entry->dev, __entry->ring, __entry->seqno)
);
DEFINE_EVENT(i915_gem_request, i915_gem_request_add,
TP_PROTO(struct drm_i915_gem_request *req),
TP_ARGS(req)
);
TRACE_EVENT(i915_gem_request_notify,
TP_PROTO(struct intel_engine_cs *engine),
TP_ARGS(engine),
TP_STRUCT__entry(
__field(u32, dev)
__field(u32, ring)
__field(u32, seqno)
),
TP_fast_assign(
__entry->dev = engine->i915->drm.primary->index;
__entry->ring = engine->id;
__entry->seqno = intel_engine_get_seqno(engine);
),
TP_printk("dev=%u, ring=%u, seqno=%u",
__entry->dev, __entry->ring, __entry->seqno)
);
DEFINE_EVENT(i915_gem_request, i915_gem_request_retire,
TP_PROTO(struct drm_i915_gem_request *req),
TP_ARGS(req)
);
DEFINE_EVENT(i915_gem_request, i915_gem_request_complete,
TP_PROTO(struct drm_i915_gem_request *req),
TP_ARGS(req)
);
TRACE_EVENT(i915_gem_request_wait_begin,
TP_PROTO(struct drm_i915_gem_request *req),
TP_ARGS(req),
TP_STRUCT__entry(
__field(u32, dev)
__field(u32, ring)
__field(u32, seqno)
__field(bool, blocking)
),
/* NB: the blocking information is racy since mutex_is_locked
* doesn't check that the current thread holds the lock. The only
* other option would be to pass the boolean information of whether
* or not the class was blocking down through the stack which is
* less desirable.
*/
TP_fast_assign(
__entry->dev = req->i915->drm.primary->index;
__entry->ring = req->engine->id;
__entry->seqno = req->global_seqno;
__entry->blocking =
mutex_is_locked(&req->i915->drm.struct_mutex);
),
TP_printk("dev=%u, ring=%u, seqno=%u, blocking=%s",
__entry->dev, __entry->ring,
__entry->seqno, __entry->blocking ? "yes (NB)" : "no")
);
DEFINE_EVENT(i915_gem_request, i915_gem_request_wait_end,
TP_PROTO(struct drm_i915_gem_request *req),
TP_ARGS(req)
);
TRACE_EVENT(i915_flip_request,
TP_PROTO(int plane, struct drm_i915_gem_object *obj),
TP_ARGS(plane, obj),
TP_STRUCT__entry(
__field(int, plane)
__field(struct drm_i915_gem_object *, obj)
),
TP_fast_assign(
__entry->plane = plane;
__entry->obj = obj;
),
TP_printk("plane=%d, obj=%p", __entry->plane, __entry->obj)
);
TRACE_EVENT(i915_flip_complete,
TP_PROTO(int plane, struct drm_i915_gem_object *obj),
TP_ARGS(plane, obj),
TP_STRUCT__entry(
__field(int, plane)
__field(struct drm_i915_gem_object *, obj)
),
TP_fast_assign(
__entry->plane = plane;
__entry->obj = obj;
),
TP_printk("plane=%d, obj=%p", __entry->plane, __entry->obj)
);
TRACE_EVENT_CONDITION(i915_reg_rw,
TP_PROTO(bool write, i915_reg_t reg, u64 val, int len, bool trace),
TP_ARGS(write, reg, val, len, trace),
TP_CONDITION(trace),
TP_STRUCT__entry(
__field(u64, val)
__field(u32, reg)
__field(u16, write)
__field(u16, len)
),
TP_fast_assign(
__entry->val = (u64)val;
__entry->reg = i915_mmio_reg_offset(reg);
__entry->write = write;
__entry->len = len;
),
TP_printk("%s reg=0x%x, len=%d, val=(0x%x, 0x%x)",
__entry->write ? "write" : "read",
__entry->reg, __entry->len,
(u32)(__entry->val & 0xffffffff),
(u32)(__entry->val >> 32))
);
TRACE_EVENT(intel_gpu_freq_change,
TP_PROTO(u32 freq),
TP_ARGS(freq),
TP_STRUCT__entry(
__field(u32, freq)
),
TP_fast_assign(
__entry->freq = freq;
),
TP_printk("new_freq=%u", __entry->freq)
);
/**
* DOC: i915_ppgtt_create and i915_ppgtt_release tracepoints
*
* With full ppgtt enabled each process using drm will allocate at least one
* translation table. With these traces it is possible to keep track of the
* allocation and of the lifetime of the tables; this can be used during
* testing/debug to verify that we are not leaking ppgtts.
* These traces identify the ppgtt through the vm pointer, which is also printed
* by the i915_vma_bind and i915_vma_unbind tracepoints.
*/
DECLARE_EVENT_CLASS(i915_ppgtt,
TP_PROTO(struct i915_address_space *vm),
TP_ARGS(vm),
TP_STRUCT__entry(
__field(struct i915_address_space *, vm)
__field(u32, dev)
),
TP_fast_assign(
__entry->vm = vm;
__entry->dev = vm->dev->primary->index;
),
TP_printk("dev=%u, vm=%p", __entry->dev, __entry->vm)
)
DEFINE_EVENT(i915_ppgtt, i915_ppgtt_create,
TP_PROTO(struct i915_address_space *vm),
TP_ARGS(vm)
);
DEFINE_EVENT(i915_ppgtt, i915_ppgtt_release,
TP_PROTO(struct i915_address_space *vm),
TP_ARGS(vm)
);
/**
* DOC: i915_context_create and i915_context_free tracepoints
*
* These tracepoints are used to track creation and deletion of contexts.
* If full ppgtt is enabled, they also print the address of the vm assigned to
* the context.
*/
DECLARE_EVENT_CLASS(i915_context,
TP_PROTO(struct i915_gem_context *ctx),
TP_ARGS(ctx),
TP_STRUCT__entry(
__field(u32, dev)
__field(struct i915_gem_context *, ctx)
__field(struct i915_address_space *, vm)
),
TP_fast_assign(
__entry->ctx = ctx;
__entry->vm = ctx->ppgtt ? &ctx->ppgtt->base : NULL;
__entry->dev = ctx->i915->drm.primary->index;
),
TP_printk("dev=%u, ctx=%p, ctx_vm=%p",
__entry->dev, __entry->ctx, __entry->vm)
)
DEFINE_EVENT(i915_context, i915_context_create,
TP_PROTO(struct i915_gem_context *ctx),
TP_ARGS(ctx)
);
DEFINE_EVENT(i915_context, i915_context_free,
TP_PROTO(struct i915_gem_context *ctx),
TP_ARGS(ctx)
);
/**
* DOC: switch_mm tracepoint
*
* This tracepoint allows tracking of the mm switch, which is an important point
* in the lifetime of the vm in the legacy submission path. This tracepoint is
* called only if full ppgtt is enabled.
*/
TRACE_EVENT(switch_mm,
TP_PROTO(struct intel_engine_cs *engine, struct i915_gem_context *to),
TP_ARGS(engine, to),
TP_STRUCT__entry(
__field(u32, ring)
__field(struct i915_gem_context *, to)
__field(struct i915_address_space *, vm)
__field(u32, dev)
),
TP_fast_assign(
__entry->ring = engine->id;
__entry->to = to;
__entry->vm = to->ppgtt? &to->ppgtt->base : NULL;
__entry->dev = engine->i915->drm.primary->index;
),
TP_printk("dev=%u, ring=%u, ctx=%p, ctx_vm=%p",
__entry->dev, __entry->ring, __entry->to, __entry->vm)
);
#endif /* _I915_TRACE_H_ */
/* This part must be outside protection */
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#include <trace/define_trace.h>
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