[Intel-xe] [PATCH] drm/xe: Move VM entries print to a trace

[Stuart Summers <stuart.summers@intel.com>]

While this information can be useful for debug, it is a little
verbose to dump during a CI run, resulting in test failures due
to disk limit issues in the CI machines.

For now, move these debug prints to a trace for manual debug.

Signed-off-by: Stuart Summers <stuart.summers@intel.com>
---
 drivers/gpu/drm/xe/xe_pt.c    | 35 +++++-------------------------
 drivers/gpu/drm/xe/xe_pt.h    |  8 +++++++
 drivers/gpu/drm/xe/xe_trace.h | 41 +++++++++++++++++++++++++++++++++++
 3 files changed, 54 insertions(+), 30 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_pt.c b/drivers/gpu/drm/xe/xe_pt.c
index 31afab617b4e..eb905878c4cb 100644
--- a/drivers/gpu/drm/xe/xe_pt.c
+++ b/drivers/gpu/drm/xe/xe_pt.c
@@ -908,6 +908,9 @@ static void xe_pt_commit_bind(struct xe_vma *vma,
 
 			pt_dir->dir.entries[j_] = &newpte->base;
 		}
+
+		trace_xe_pt_commit_bind(&entries[i]);
+
 		kfree(entries[i].pt_entries);
 	}
 }
@@ -929,34 +932,6 @@ xe_pt_prepare_bind(struct xe_tile *tile, struct xe_vma *vma,
 	return err;
 }
 
-static void xe_vm_dbg_print_entries(struct xe_device *xe,
-				    const struct xe_vm_pgtable_update *entries,
-				    unsigned int num_entries)
-#if (IS_ENABLED(CONFIG_DRM_XE_DEBUG_VM))
-{
-	unsigned int i;
-
-	vm_dbg(&xe->drm, "%u entries to update\n", num_entries);
-	for (i = 0; i < num_entries; i++) {
-		const struct xe_vm_pgtable_update *entry = &entries[i];
-		struct xe_pt *xe_pt = entry->pt;
-		u64 page_size = 1ull << xe_pt_shift(xe_pt->level);
-		u64 end;
-		u64 start;
-
-		xe_assert(xe, !entry->pt->is_compact);
-		start = entry->ofs * page_size;
-		end = start + page_size * entry->qwords;
-		vm_dbg(&xe->drm,
-		       "\t%u: Update level %u at (%u + %u) [%llx...%llx) f:%x\n",
-		       i, xe_pt->level, entry->ofs, entry->qwords,
-		       xe_pt_addr(xe_pt) + start, xe_pt_addr(xe_pt) + end, 0);
-	}
-}
-#else
-{}
-#endif
-
 #ifdef CONFIG_DRM_XE_USERPTR_INVAL_INJECT
 
 static int xe_pt_userptr_inject_eagain(struct xe_vma *vma)
@@ -1276,7 +1251,6 @@ __xe_pt_bind_vma(struct xe_tile *tile, struct xe_vma *vma, struct xe_exec_queue
 		goto err;
 	xe_tile_assert(tile, num_entries <= ARRAY_SIZE(entries));
 
-	xe_vm_dbg_print_entries(tile_to_xe(tile), entries, num_entries);
 	xe_pt_calc_rfence_interval(vma, &bind_pt_update, entries,
 				   num_entries);
 
@@ -1563,6 +1537,8 @@ xe_pt_commit_unbind(struct xe_vma *vma,
 				pt_dir->dir.entries[i] = NULL;
 			}
 		}
+
+		trace_xe_pt_commit_unbind(entry);
 	}
 }
 
@@ -1627,7 +1603,6 @@ __xe_pt_unbind_vma(struct xe_tile *tile, struct xe_vma *vma, struct xe_exec_queu
 	num_entries = xe_pt_stage_unbind(tile, vma, entries);
 	xe_tile_assert(tile, num_entries <= ARRAY_SIZE(entries));
 
-	xe_vm_dbg_print_entries(tile_to_xe(tile), entries, num_entries);
 	xe_pt_calc_rfence_interval(vma, &unbind_pt_update, entries,
 				   num_entries);
 
diff --git a/drivers/gpu/drm/xe/xe_pt.h b/drivers/gpu/drm/xe/xe_pt.h
index d5460e58dbbf..c7e5f7111227 100644
--- a/drivers/gpu/drm/xe/xe_pt.h
+++ b/drivers/gpu/drm/xe/xe_pt.h
@@ -18,6 +18,14 @@ struct xe_tile;
 struct xe_vm;
 struct xe_vma;
 
+#if IS_ENABLED(CONFIG_DRM_XE_DEBUG_VM)
+#define xe_pt_set_addr(__xe_pt, __addr) ((__xe_pt)->addr = (__addr))
+#define xe_pt_addr(__xe_pt) ((__xe_pt)->addr)
+#else
+#define xe_pt_set_addr(__xe_pt, __addr)
+#define xe_pt_addr(__xe_pt) 0ull
+#endif
+
 #define xe_pt_write(xe, map, idx, data) \
 	xe_map_wr(xe, map, (idx) * sizeof(u64), u64, data)
 
diff --git a/drivers/gpu/drm/xe/xe_trace.h b/drivers/gpu/drm/xe/xe_trace.h
index e32f1cad51d9..24d898061d04 100644
--- a/drivers/gpu/drm/xe/xe_trace.h
+++ b/drivers/gpu/drm/xe/xe_trace.h
@@ -17,8 +17,49 @@
 #include "xe_gt_tlb_invalidation_types.h"
 #include "xe_gt_types.h"
 #include "xe_guc_exec_queue_types.h"
+#include "xe_pt_types.h"
 #include "xe_sched_job.h"
 #include "xe_vm.h"
+#include "xe_pt.h"
+
+DECLARE_EVENT_CLASS(xe_vm_pgtable_update,
+		    TP_PROTO(struct xe_vm_pgtable_update *update),
+		    TP_ARGS(update),
+
+		    TP_STRUCT__entry(
+			     __field(u64, page_size)
+			     __field(u64, end)
+			     __field(u64, start)
+			     __field(u64, pt_addr)
+			     __field(unsigned int, level)
+			     __field(u32, ofs)
+			     __field(u32, qwords)
+			     ),
+
+		    TP_fast_assign(
+			   __entry->level = xe_pt_shift(update->pt->level);
+			   __entry->page_size = 1ull << __entry->level;
+			   __entry->pt_addr = xe_pt_addr(update->pt);
+			   __entry->ofs = update->ofs;
+			   __entry->qwords = update->qwords;
+			   __entry->start = __entry->pt_addr + update->ofs * __entry->page_size;
+			   __entry->end = __entry->start + __entry->page_size * update->qwords;
+			   ),
+
+		    TP_printk("Update level %u at (%u + %u) [%llx...%llx]",
+			      __entry->level, __entry->ofs, __entry->qwords,
+			      __entry->start, __entry->end)
+);
+
+DEFINE_EVENT(xe_vm_pgtable_update, xe_pt_commit_bind,
+	     TP_PROTO(struct xe_vm_pgtable_update *entry),
+	     TP_ARGS(entry)
+);
+
+DEFINE_EVENT(xe_vm_pgtable_update, xe_pt_commit_unbind,
+	     TP_PROTO(struct xe_vm_pgtable_update *entry),
+	     TP_ARGS(entry)
+);
 
 DECLARE_EVENT_CLASS(xe_gt_tlb_invalidation_fence,
 		    TP_PROTO(struct xe_gt_tlb_invalidation_fence *fence),
-- 
2.34.1