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	 ac9098b179
			
		
	
	
		ac9098b179
		
	
	
	
	
		
			
			With IFPC, there is a probability of accessing a GX domain register when it is collapsed, which leads to gmu fence errors. To debug this, we need to trace every gpu register accesses and identify the one just before a gmu fence error. So, add an ftrace to track all gpu register accesses. Signed-off-by: Akhil P Oommen <akhilpo@oss.qualcomm.com> Patchwork: https://patchwork.freedesktop.org/patch/673366/ Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
		
			
				
	
	
		
			238 lines
		
	
	
	
		
			5.9 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			238 lines
		
	
	
	
		
			5.9 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /* SPDX-License-Identifier: GPL-2.0 */
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| #if !defined(_MSM_GPU_TRACE_H_) || defined(TRACE_HEADER_MULTI_READ)
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| #define _MSM_GPU_TRACE_H_
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| 
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| #include <linux/tracepoint.h>
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| 
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| #undef TRACE_SYSTEM
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| #define TRACE_SYSTEM drm_msm_gpu
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| #define TRACE_INCLUDE_FILE msm_gpu_trace
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| 
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| TRACE_EVENT(msm_gpu_submit,
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| 	    TP_PROTO(pid_t pid, u32 ringid, u32 id, u32 nr_bos, u32 nr_cmds),
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| 	    TP_ARGS(pid, ringid, id, nr_bos, nr_cmds),
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| 	    TP_STRUCT__entry(
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| 		    __field(pid_t, pid)
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| 		    __field(u32, id)
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| 		    __field(u32, ringid)
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| 		    __field(u32, nr_cmds)
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| 		    __field(u32, nr_bos)
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| 		    ),
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| 	    TP_fast_assign(
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| 		    __entry->pid = pid;
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| 		    __entry->id = id;
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| 		    __entry->ringid = ringid;
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| 		    __entry->nr_bos = nr_bos;
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| 		    __entry->nr_cmds = nr_cmds
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| 		    ),
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| 	    TP_printk("id=%d pid=%d ring=%d bos=%d cmds=%d",
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| 		    __entry->id, __entry->pid, __entry->ringid,
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| 		    __entry->nr_bos, __entry->nr_cmds)
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| );
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| 
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| TRACE_EVENT(msm_gpu_submit_flush,
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| 	    TP_PROTO(struct msm_gem_submit *submit, u64 ticks),
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| 	    TP_ARGS(submit, ticks),
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| 	    TP_STRUCT__entry(
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| 		    __field(pid_t, pid)
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| 		    __field(u32, id)
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| 		    __field(u32, ringid)
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| 		    __field(u32, seqno)
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| 		    __field(u64, ticks)
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| 		    ),
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| 	    TP_fast_assign(
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| 		    __entry->pid = pid_nr(submit->pid);
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| 		    __entry->id = submit->ident;
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| 		    __entry->ringid = submit->ring->id;
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| 		    __entry->seqno = submit->seqno;
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| 		    __entry->ticks = ticks;
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| 		    ),
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| 	    TP_printk("id=%d pid=%d ring=%d:%d ticks=%lld",
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| 		    __entry->id, __entry->pid, __entry->ringid, __entry->seqno,
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| 		    __entry->ticks)
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| );
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| 
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| 
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| TRACE_EVENT(msm_gpu_submit_retired,
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| 	    TP_PROTO(struct msm_gem_submit *submit, u64 elapsed, u64 clock,
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| 		    u64 start, u64 end),
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| 	    TP_ARGS(submit, elapsed, clock, start, end),
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| 	    TP_STRUCT__entry(
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| 		    __field(pid_t, pid)
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| 		    __field(u32, id)
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| 		    __field(u32, ringid)
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| 		    __field(u32, seqno)
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| 		    __field(u64, elapsed)
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| 		    __field(u64, clock)
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| 		    __field(u64, start_ticks)
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| 		    __field(u64, end_ticks)
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| 		    ),
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| 	    TP_fast_assign(
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| 		    __entry->pid = pid_nr(submit->pid);
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| 		    __entry->id = submit->ident;
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| 		    __entry->ringid = submit->ring->id;
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| 		    __entry->seqno = submit->seqno;
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| 		    __entry->elapsed = elapsed;
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| 		    __entry->clock = clock;
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| 		    __entry->start_ticks = start;
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| 		    __entry->end_ticks = end;
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| 		    ),
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| 	    TP_printk("id=%d pid=%d ring=%d:%d elapsed=%lld ns mhz=%lld start=%lld end=%lld",
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| 		    __entry->id, __entry->pid, __entry->ringid, __entry->seqno,
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| 		    __entry->elapsed, __entry->clock,
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| 		    __entry->start_ticks, __entry->end_ticks)
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| );
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| 
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| 
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| TRACE_EVENT(msm_gpu_freq_change,
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| 		TP_PROTO(u32 freq),
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| 		TP_ARGS(freq),
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| 		TP_STRUCT__entry(
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| 			__field(u32, freq)
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| 			),
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| 		TP_fast_assign(
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| 			/* trace freq in MHz to match intel_gpu_freq_change, to make life easier
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| 			 * for userspace
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| 			 */
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| 			__entry->freq = DIV_ROUND_UP(freq, 1000000);
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| 			),
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| 		TP_printk("new_freq=%u", __entry->freq)
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| );
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| 
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| 
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| TRACE_EVENT(msm_gmu_freq_change,
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| 		TP_PROTO(u32 freq, u32 perf_index),
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| 		TP_ARGS(freq, perf_index),
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| 		TP_STRUCT__entry(
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| 			__field(u32, freq)
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| 			__field(u32, perf_index)
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| 			),
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| 		TP_fast_assign(
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| 			__entry->freq = freq;
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| 			__entry->perf_index = perf_index;
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| 			),
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| 		TP_printk("freq=%u, perf_index=%u", __entry->freq, __entry->perf_index)
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| );
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| 
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| 
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| TRACE_EVENT(msm_gem_shrink,
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| 		TP_PROTO(u32 nr_to_scan, u32 purged, u32 evicted,
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| 			 u32 active_purged, u32 active_evicted),
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| 		TP_ARGS(nr_to_scan, purged, evicted, active_purged, active_evicted),
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| 		TP_STRUCT__entry(
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| 			__field(u32, nr_to_scan)
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| 			__field(u32, purged)
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| 			__field(u32, evicted)
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| 			__field(u32, active_purged)
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| 			__field(u32, active_evicted)
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| 			),
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| 		TP_fast_assign(
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| 			__entry->nr_to_scan = nr_to_scan;
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| 			__entry->purged = purged;
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| 			__entry->evicted = evicted;
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| 			__entry->active_purged = active_purged;
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| 			__entry->active_evicted = active_evicted;
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| 			),
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| 		TP_printk("nr_to_scan=%u pg, purged=%u pg, evicted=%u pg, active_purged=%u pg, active_evicted=%u pg",
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| 			  __entry->nr_to_scan, __entry->purged, __entry->evicted,
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| 			  __entry->active_purged, __entry->active_evicted)
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| );
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| 
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| 
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| TRACE_EVENT(msm_gem_purge_vmaps,
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| 		TP_PROTO(u32 unmapped),
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| 		TP_ARGS(unmapped),
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| 		TP_STRUCT__entry(
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| 			__field(u32, unmapped)
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| 			),
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| 		TP_fast_assign(
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| 			__entry->unmapped = unmapped;
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| 			),
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| 		TP_printk("Purging %u vmaps", __entry->unmapped)
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| );
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| 
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| 
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| TRACE_EVENT(msm_gpu_suspend,
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| 		TP_PROTO(int dummy),
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| 		TP_ARGS(dummy),
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| 		TP_STRUCT__entry(
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| 			__field(u32, dummy)
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| 			),
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| 		TP_fast_assign(
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| 			__entry->dummy = dummy;
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| 			),
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| 		TP_printk("%u", __entry->dummy)
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| );
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| 
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| 
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| TRACE_EVENT(msm_gpu_resume,
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| 		TP_PROTO(int dummy),
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| 		TP_ARGS(dummy),
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| 		TP_STRUCT__entry(
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| 			__field(u32, dummy)
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| 			),
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| 		TP_fast_assign(
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| 			__entry->dummy = dummy;
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| 			),
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| 		TP_printk("%u", __entry->dummy)
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| );
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| 
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| TRACE_EVENT(msm_gpu_preemption_trigger,
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| 		TP_PROTO(int ring_id_from, int ring_id_to),
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| 		TP_ARGS(ring_id_from, ring_id_to),
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| 		TP_STRUCT__entry(
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| 			__field(int, ring_id_from)
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| 			__field(int, ring_id_to)
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| 			),
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| 		TP_fast_assign(
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| 			__entry->ring_id_from = ring_id_from;
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| 			__entry->ring_id_to = ring_id_to;
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| 			),
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| 		TP_printk("preempting %u -> %u",
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| 			  __entry->ring_id_from,
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| 			  __entry->ring_id_to)
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| );
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| 
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| TRACE_EVENT(msm_gpu_preemption_irq,
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| 		TP_PROTO(u32 ring_id),
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| 		TP_ARGS(ring_id),
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| 		TP_STRUCT__entry(
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| 			__field(u32, ring_id)
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| 			),
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| 		TP_fast_assign(
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| 			__entry->ring_id = ring_id;
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| 			),
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| 		TP_printk("preempted to %u", __entry->ring_id)
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| );
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| 
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| TRACE_EVENT(msm_mmu_prealloc_cleanup,
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| 		TP_PROTO(u32 count, u32 remaining),
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| 		TP_ARGS(count, remaining),
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| 		TP_STRUCT__entry(
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| 			__field(u32, count)
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| 			__field(u32, remaining)
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| 			),
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| 		TP_fast_assign(
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| 			__entry->count = count;
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| 			__entry->remaining = remaining;
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| 			),
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| 		TP_printk("count=%u, remaining=%u", __entry->count, __entry->remaining)
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| );
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| 
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| TRACE_EVENT(msm_gpu_regaccess,
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| 		TP_PROTO(u32 offset),
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| 		TP_ARGS(offset),
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| 		TP_STRUCT__entry(
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| 			__field(u32, offset)
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| 			),
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| 		TP_fast_assign(
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| 			__entry->offset = offset;
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| 			),
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| 		TP_printk("offset=0x%x", __entry->offset)
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| );
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| 
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| #endif
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| 
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| #undef TRACE_INCLUDE_PATH
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| #define TRACE_INCLUDE_PATH ../../drivers/gpu/drm/msm
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| #include <trace/define_trace.h>
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