[PATCH v5 4/6] drm/xe/trace: Print device_id in xe_trace_guc events

[Radhakrishna Sripada <radhakrishna.sripada@intel.com>]

In multi-gpu environments it is important to know the device
guc txn belongs to. The tracing information includes the device_id
to indicate the device the event is associated with.

v2: Use variable sized variant to display dev name(Gustavo)
v3: Pass single argument to __assign_str to fix kunit error

Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Gustavo Sousa <gustavo.sousa@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
---
 drivers/gpu/drm/xe/xe_guc_ct.c    | 11 +++----
 drivers/gpu/drm/xe/xe_trace_guc.h | 48 ++++++++++++++++++-------------
 2 files changed, 34 insertions(+), 25 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_guc_ct.c b/drivers/gpu/drm/xe/xe_guc_ct.c
index 78f79df638d5..ff3fd10cd417 100644
--- a/drivers/gpu/drm/xe/xe_guc_ct.c
+++ b/drivers/gpu/drm/xe/xe_guc_ct.c
@@ -528,7 +528,7 @@ static int h2g_write(struct xe_guc_ct *ct, const u32 *action, u32 len,
 	/* Update descriptor */
 	desc_write(xe, h2g, tail, h2g->info.tail);
 
-	trace_xe_guc_ctb_h2g(gt->info.id, *(action - 1), full_len,
+	trace_xe_guc_ctb_h2g(xe, gt->info.id, *(action - 1), full_len,
 			     desc_read(xe, h2g, head), h2g->info.tail);
 
 	return 0;
@@ -641,6 +641,7 @@ static int guc_ct_send_locked(struct xe_guc_ct *ct, const u32 *action, u32 len,
 			      u32 g2h_len, u32 num_g2h,
 			      struct g2h_fence *g2h_fence)
 {
+	struct xe_device *xe = ct_to_xe(ct);
 	struct xe_gt *gt = ct_to_gt(ct);
 	struct drm_printer p = xe_gt_info_printer(gt);
 	unsigned int sleep_period_ms = 1;
@@ -668,7 +669,7 @@ static int guc_ct_send_locked(struct xe_guc_ct *ct, const u32 *action, u32 len,
 		if (sleep_period_ms == 1024)
 			goto broken;
 
-		trace_xe_guc_ct_h2g_flow_control(h2g->info.head, h2g->info.tail,
+		trace_xe_guc_ct_h2g_flow_control(xe, h2g->info.head, h2g->info.tail,
 						 h2g->info.size,
 						 h2g->info.space,
 						 len + GUC_CTB_HDR_LEN);
@@ -680,7 +681,7 @@ static int guc_ct_send_locked(struct xe_guc_ct *ct, const u32 *action, u32 len,
 		struct xe_device *xe = ct_to_xe(ct);
 		struct guc_ctb *g2h = &ct->ctbs.g2h;
 
-		trace_xe_guc_ct_g2h_flow_control(g2h->info.head,
+		trace_xe_guc_ct_g2h_flow_control(xe, g2h->info.head,
 						 desc_read(xe, g2h, tail),
 						 g2h->info.size,
 						 g2h->info.space,
@@ -1170,8 +1171,8 @@ static int g2h_read(struct xe_guc_ct *ct, u32 *msg, bool fast_path)
 	g2h->info.head = (head + avail) % g2h->info.size;
 	desc_write(xe, g2h, head, g2h->info.head);
 
-	trace_xe_guc_ctb_g2h(ct_to_gt(ct)->info.id, action, len,
-			     g2h->info.head, tail);
+	trace_xe_guc_ctb_g2h(xe, ct_to_gt(ct)->info.id,
+			     action, len, g2h->info.head, tail);
 
 	return len;
 }
diff --git a/drivers/gpu/drm/xe/xe_trace_guc.h b/drivers/gpu/drm/xe/xe_trace_guc.h
index d6830ff21822..3791baad1866 100644
--- a/drivers/gpu/drm/xe/xe_trace_guc.h
+++ b/drivers/gpu/drm/xe/xe_trace_guc.h
@@ -9,16 +9,21 @@
 #if !defined(_XE_TRACE_GUC_H_) || defined(TRACE_HEADER_MULTI_READ)
 #define _XE_TRACE_GUC_H_
 
+#include <linux/string_helpers.h>
 #include <linux/tracepoint.h>
 #include <linux/types.h>
 
+#include "xe_device_types.h"
 #include "xe_guc_exec_queue_types.h"
 
+#define __dev_name_xe(xe)	dev_name((xe)->drm.dev)
+
 DECLARE_EVENT_CLASS(xe_guc_ct_flow_control,
-		    TP_PROTO(u32 _head, u32 _tail, u32 size, u32 space, u32 len),
-		    TP_ARGS(_head, _tail, size, space, len),
+		    TP_PROTO(struct xe_device *xe, u32 _head, u32 _tail, u32 size, u32 space, u32 len),
+		    TP_ARGS(xe, _head, _tail, size, space, len),
 
 		    TP_STRUCT__entry(
+			     __string(dev, __dev_name_xe(xe))
 			     __field(u32, _head)
 			     __field(u32, _tail)
 			     __field(u32, size)
@@ -27,6 +32,7 @@ DECLARE_EVENT_CLASS(xe_guc_ct_flow_control,
 			     ),
 
 		    TP_fast_assign(
+			   __assign_str(dev);
 			   __entry->_head = _head;
 			   __entry->_tail = _tail;
 			   __entry->size = size;
@@ -34,30 +40,31 @@ DECLARE_EVENT_CLASS(xe_guc_ct_flow_control,
 			   __entry->len = len;
 			   ),
 
-		    TP_printk("h2g flow control: head=%u, tail=%u, size=%u, space=%u, len=%u",
-			      __entry->_head, __entry->_tail, __entry->size,
+		    TP_printk("dev=%s, h2g flow control: head=%u, tail=%u, size=%u, space=%u, len=%u",
+			      __get_str(dev), __entry->_head, __entry->_tail, __entry->size,
 			      __entry->space, __entry->len)
 );
 
 DEFINE_EVENT(xe_guc_ct_flow_control, xe_guc_ct_h2g_flow_control,
-	     TP_PROTO(u32 _head, u32 _tail, u32 size, u32 space, u32 len),
-	     TP_ARGS(_head, _tail, size, space, len)
+	     TP_PROTO(struct xe_device *xe, u32 _head, u32 _tail, u32 size, u32 space, u32 len),
+	     TP_ARGS(xe, _head, _tail, size, space, len)
 );
 
 DEFINE_EVENT_PRINT(xe_guc_ct_flow_control, xe_guc_ct_g2h_flow_control,
-		   TP_PROTO(u32 _head, u32 _tail, u32 size, u32 space, u32 len),
-		   TP_ARGS(_head, _tail, size, space, len),
+		   TP_PROTO(struct xe_device *xe, u32 _head, u32 _tail, u32 size, u32 space, u32 len),
+		   TP_ARGS(xe, _head, _tail, size, space, len),
 
-		   TP_printk("g2h flow control: head=%u, tail=%u, size=%u, space=%u, len=%u",
-			     __entry->_head, __entry->_tail, __entry->size,
+		   TP_printk("dev=%s, g2h flow control: head=%u, tail=%u, size=%u, space=%u, len=%u",
+			     __get_str(dev), __entry->_head, __entry->_tail, __entry->size,
 			     __entry->space, __entry->len)
 );
 
 DECLARE_EVENT_CLASS(xe_guc_ctb,
-		    TP_PROTO(u8 gt_id, u32 action, u32 len, u32 _head, u32 tail),
-		    TP_ARGS(gt_id, action, len, _head, tail),
+		    TP_PROTO(struct xe_device *xe, u8 gt_id, u32 action, u32 len, u32 _head, u32 tail),
+		    TP_ARGS(xe, gt_id, action, len, _head, tail),
 
 		    TP_STRUCT__entry(
+				__string(dev, __dev_name_xe(xe))
 				__field(u8, gt_id)
 				__field(u32, action)
 				__field(u32, len)
@@ -66,6 +73,7 @@ DECLARE_EVENT_CLASS(xe_guc_ctb,
 		    ),
 
 		    TP_fast_assign(
+			    __assign_str(dev);
 			    __entry->gt_id = gt_id;
 			    __entry->action = action;
 			    __entry->len = len;
@@ -73,22 +81,22 @@ DECLARE_EVENT_CLASS(xe_guc_ctb,
 			    __entry->_head = _head;
 		    ),
 
-		    TP_printk("gt%d: H2G CTB: action=0x%x, len=%d, tail=%d, head=%d\n",
-			      __entry->gt_id, __entry->action, __entry->len,
+		    TP_printk("dev=%s, gt%d: H2G CTB: action=0x%x, len=%d, tail=%d, head=%d\n",
+			      __get_str(dev), __entry->gt_id, __entry->action, __entry->len,
 			      __entry->tail, __entry->_head)
 );
 
 DEFINE_EVENT(xe_guc_ctb, xe_guc_ctb_h2g,
-	     TP_PROTO(u8 gt_id, u32 action, u32 len, u32 _head, u32 tail),
-	     TP_ARGS(gt_id, action, len, _head, tail)
+	     TP_PROTO(struct xe_device *xe, u8 gt_id, u32 action, u32 len, u32 _head, u32 tail),
+	     TP_ARGS(xe, gt_id, action, len, _head, tail)
 );
 
 DEFINE_EVENT_PRINT(xe_guc_ctb, xe_guc_ctb_g2h,
-		   TP_PROTO(u8 gt_id, u32 action, u32 len, u32 _head, u32 tail),
-		   TP_ARGS(gt_id, action, len, _head, tail),
+		   TP_PROTO(struct xe_device *xe, u8 gt_id, u32 action, u32 len, u32 _head, u32 tail),
+		   TP_ARGS(xe, gt_id, action, len, _head, tail),
 
-		   TP_printk("gt%d: G2H CTB: action=0x%x, len=%d, tail=%d, head=%d\n",
-			     __entry->gt_id, __entry->action, __entry->len,
+		   TP_printk("dev=%s, gt%d: G2H CTB: action=0x%x, len=%d, tail=%d, head=%d\n",
+			     __get_str(dev), __entry->gt_id, __entry->action, __entry->len,
 			     __entry->tail, __entry->_head)
 
 );
-- 
2.34.1