drm/xe/xe_bo_move: Enhance xe_bo_move trace

Enhanced xe_bo_move trace to be more readable.
It will help to show the migration details.
Src and dst details.

v2: Modify trace_xe_bo_move(), it takes the integer mem_type
rather than a string.
Make mem_type_to_name() extern, it will be used by trace.(Thomas)

v3: Move mem_type_to_name() to xe_bo.[ch] (Thomas, Matt)

v4: Add device details to reduce ambiquity related to vram0/vram1. (Oak)

v5: Rename mem_type_to_name to xe_mem_type_to_name. (Thomas)

v6: Optimised code to use xe_bo_device(__entry->bo). (Thomas)

Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Oak Zeng <oak.zeng@intel.com>
Cc: Kempczynski Zbigniew <Zbigniew.Kempczynski@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Brian Welty <brian.welty@intel.com>
Signed-off-by: Priyanka Dandamudi <priyanka.dandamudi@intel.com>
Reviewed-by: Oak Zeng <oak.zeng@intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240220044748.948496-1-priyanka.dandamudi@intel.com

diff --git a/drivers/gpu/drm/xe/xe_bo.c b/drivers/gpu/drm/xe/xe_bo.c
index 686d716..d59b67d 100644 (file)
--- a/drivers/gpu/drm/xe/xe_bo.c
+++ b/drivers/gpu/drm/xe/xe_bo.c
@@ -28,6 +28,14 @@
 #include "xe_ttm_stolen_mgr.h"
 #include "xe_vm.h"
 
+const char *const xe_mem_type_to_name[TTM_NUM_MEM_TYPES]  = {
+       [XE_PL_SYSTEM] = "system",
+       [XE_PL_TT] = "gtt",
+       [XE_PL_VRAM0] = "vram0",
+       [XE_PL_VRAM1] = "vram1",
+       [XE_PL_STOLEN] = "stolen"
+};
+
 static const struct ttm_place sys_placement_flags = {
        .fpfn = 0,
        .lpfn = 0,
@@ -727,8 +735,7 @@ static int xe_bo_move(struct ttm_buffer_object *ttm_bo, bool evict,
                migrate = xe->tiles[0].migrate;
 
        xe_assert(xe, migrate);
-
-       trace_xe_bo_move(bo);
+       trace_xe_bo_move(bo, new_mem->mem_type, old_mem_type);
        xe_device_mem_access_get(xe);
 
        if (xe_bo_is_pinned(bo) && !xe_bo_is_user(bo)) {

diff --git a/drivers/gpu/drm/xe/xe_bo.h b/drivers/gpu/drm/xe/xe_bo.h
index db4b2db..7e49e67 100644 (file)
--- a/drivers/gpu/drm/xe/xe_bo.h
+++ b/drivers/gpu/drm/xe/xe_bo.h
@@ -244,6 +244,7 @@ int xe_bo_evict_pinned(struct xe_bo *bo);
 int xe_bo_restore_pinned(struct xe_bo *bo);
 
 extern const struct ttm_device_funcs xe_ttm_funcs;
+extern const char *const xe_mem_type_to_name[];
 
 int xe_gem_create_ioctl(struct drm_device *dev, void *data,
                        struct drm_file *file);

diff --git a/drivers/gpu/drm/xe/xe_drm_client.c b/drivers/gpu/drm/xe/xe_drm_client.c
index 82d1305..6040e4d 100644 (file)
--- a/drivers/gpu/drm/xe/xe_drm_client.c
+++ b/drivers/gpu/drm/xe/xe_drm_client.c
@@ -131,14 +131,6 @@ static void bo_meminfo(struct xe_bo *bo,
 
 static void show_meminfo(struct drm_printer *p, struct drm_file *file)
 {
-       static const char *const mem_type_to_name[TTM_NUM_MEM_TYPES]  = {
-               [XE_PL_SYSTEM] = "system",
-               [XE_PL_TT] = "gtt",
-               [XE_PL_VRAM0] = "vram0",
-               [XE_PL_VRAM1] = "vram1",
-               [4 ... 6] = NULL,
-               [XE_PL_STOLEN] = "stolen"
-       };
        struct drm_memory_stats stats[TTM_NUM_MEM_TYPES] = {};
        struct xe_file *xef = file->driver_priv;
        struct ttm_device *bdev = &xef->xe->ttm;
@@ -171,7 +163,7 @@ static void show_meminfo(struct drm_printer *p, struct drm_file *file)
        spin_unlock(&client->bos_lock);
 
        for (mem_type = XE_PL_SYSTEM; mem_type < TTM_NUM_MEM_TYPES; ++mem_type) {
-               if (!mem_type_to_name[mem_type])
+               if (!xe_mem_type_to_name[mem_type])
                        continue;
 
                man = ttm_manager_type(bdev, mem_type);
@@ -182,7 +174,7 @@ static void show_meminfo(struct drm_printer *p, struct drm_file *file)
                                               DRM_GEM_OBJECT_RESIDENT |
                                               (mem_type != XE_PL_SYSTEM ? 0 :
                                               DRM_GEM_OBJECT_PURGEABLE),
-                                              mem_type_to_name[mem_type]);
+                                              xe_mem_type_to_name[mem_type]);
                }
        }
 }

diff --git a/drivers/gpu/drm/xe/xe_trace.h b/drivers/gpu/drm/xe/xe_trace.h
index e4e7262..0cce98a 100644 (file)
--- a/drivers/gpu/drm/xe/xe_trace.h
+++ b/drivers/gpu/drm/xe/xe_trace.h
@@ -12,6 +12,7 @@
 #include <linux/tracepoint.h>
 #include <linux/types.h>
 
+#include "xe_bo.h"
 #include "xe_bo_types.h"
 #include "xe_exec_queue_types.h"
 #include "xe_gpu_scheduler_types.h"
@@ -31,7 +32,7 @@ DECLARE_EVENT_CLASS(xe_gt_tlb_invalidation_fence,
                             ),
 
                    TP_fast_assign(
-                          __entry->fence = (unsigned long)fence;
+                          __entry->fence = (u64)fence;
                           __entry->seqno = fence->seqno;
                           ),
 
@@ -100,9 +101,27 @@ DEFINE_EVENT(xe_bo, xe_bo_cpu_fault,
             TP_ARGS(bo)
 );
 
-DEFINE_EVENT(xe_bo, xe_bo_move,
-            TP_PROTO(struct xe_bo *bo),
-            TP_ARGS(bo)
+TRACE_EVENT(xe_bo_move,
+           TP_PROTO(struct xe_bo *bo, uint32_t new_placement, uint32_t old_placement),
+           TP_ARGS(bo, new_placement, old_placement),
+           TP_STRUCT__entry(
+                    __field(struct xe_bo *, bo)
+                    __field(size_t, size)
+                    __field(u32, new_placement)
+                    __field(u32, old_placement)
+                    __array(char, device_id, 12)
+                       ),
+
+           TP_fast_assign(
+                  __entry->bo      = bo;
+                  __entry->size = bo->size;
+                  __entry->new_placement = new_placement;
+                  __entry->old_placement = old_placement;
+                  strscpy(__entry->device_id, dev_name(xe_bo_device(__entry->bo)->drm.dev), 12);
+                  ),
+           TP_printk("migrate object %p [size %zu] from %s to %s device_id:%s",
+                     __entry->bo, __entry->size, xe_mem_type_to_name[__entry->old_placement],
+                     xe_mem_type_to_name[__entry->new_placement], __entry->device_id)
 );
 
 DECLARE_EVENT_CLASS(xe_exec_queue,