[PATCH 2/2] drm/amdgpu: improve VM PTE trace points

[Christian König]

From: Christian König <christian.koenig at amd.com>

Use a separate one for the copy operation and
log all the interesting parameters.

Signed-off-by: Christian König <christian.koenig at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h | 20 +++++++++++++++++++-
 drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c    | 10 ++++++----
 2 files changed, 25 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
index 0d8d65e..067e5e6 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
@@ -247,7 +247,7 @@ DEFINE_EVENT(amdgpu_vm_mapping, amdgpu_vm_bo_mapping,
 	    TP_ARGS(mapping)
 );
 
-TRACE_EVENT(amdgpu_vm_set_page,
+TRACE_EVENT(amdgpu_vm_set_ptes,
 	    TP_PROTO(uint64_t pe, uint64_t addr, unsigned count,
 		     uint32_t incr, uint32_t flags),
 	    TP_ARGS(pe, addr, count, incr, flags),
@@ -271,6 +271,24 @@ TRACE_EVENT(amdgpu_vm_set_page,
 		      __entry->flags, __entry->count)
 );
 
+TRACE_EVENT(amdgpu_vm_copy_ptes,
+	    TP_PROTO(uint64_t pe, uint64_t src, unsigned count),
+	    TP_ARGS(pe, src, count),
+	    TP_STRUCT__entry(
+			     __field(u64, pe)
+			     __field(u64, src)
+			     __field(u32, count)
+			     ),
+
+	    TP_fast_assign(
+			   __entry->pe = pe;
+			   __entry->src = src;
+			   __entry->count = count;
+			   ),
+	    TP_printk("pe=%010Lx, src=%010Lx, count=%u",
+		      __entry->pe, __entry->src, __entry->count)
+);
+
 TRACE_EVENT(amdgpu_vm_flush,
 	    TP_PROTO(uint64_t pd_addr, unsigned ring, unsigned id),
 	    TP_ARGS(pd_addr, ring, id),
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index da31189..bc4b22c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -487,7 +487,7 @@ static void amdgpu_vm_do_set_ptes(struct amdgpu_pte_update_params *params,
 				  unsigned count, uint32_t incr,
 				  uint32_t flags)
 {
-	trace_amdgpu_vm_set_page(pe, addr, count, incr, flags);
+	trace_amdgpu_vm_set_ptes(pe, addr, count, incr, flags);
 
 	if (count < 3) {
 		amdgpu_vm_write_pte(params->adev, params->ib, pe,
@@ -516,10 +516,12 @@ static void amdgpu_vm_do_copy_ptes(struct amdgpu_pte_update_params *params,
 				   unsigned count, uint32_t incr,
 				   uint32_t flags)
 {
-	trace_amdgpu_vm_set_page(pe, addr, count, incr, flags);
+	uint64_t src = (params->src + (addr >> 12) * 8);
 
-	amdgpu_vm_copy_pte(params->adev, params->ib, pe,
-			   (params->src + (addr >> 12) * 8), count);
+
+	trace_amdgpu_vm_copy_ptes(pe, src, count);
+
+	amdgpu_vm_copy_pte(params->adev, params->ib, pe, src, count);
 }
 
 /**
-- 
2.5.0