[PATCH] drm/amdgpu: limit the amdgpu_vm_update_ptes trace point

[Sharma, Shashank]

Looks good to me, Please feel free to use:
Reviewed-by: Shashank Sharma <shashank.sharma at amd.com>

Regards
Shashank
-----Original Message-----
From: Christian König <ckoenig.leichtzumerken at gmail.com> 
Sent: Tuesday, December 8, 2020 11:01 PM
To: amd-gfx at lists.freedesktop.org
Cc: Sharma, Shashank <Shashank.Sharma at amd.com>
Subject: [PATCH] drm/amdgpu: limit the amdgpu_vm_update_ptes trace point

The text output should not be more than a page, so only print the first
32 page table entries.

If we need all of them we can still look into the binary trace.

Signed-off-by: Christian König <christian.koenig at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
index ee9480d14cbc..11b1b1122c34 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
@@ -358,10 +358,11 @@ TRACE_EVENT(amdgpu_vm_update_ptes,
 			}
 	),
 	TP_printk("pid:%u vm_ctx:0x%llx start:0x%010llx end:0x%010llx,"
-		  " flags:0x%llx, incr:%llu, dst:\n%s", __entry->pid,
+		  " flags:0x%llx, incr:%llu, dst:\n%s%s", __entry->pid,
 		  __entry->vm_ctx, __entry->start, __entry->end,
 		  __entry->flags, __entry->incr,  __print_array(
-		  __get_dynamic_array(dst), __entry->nptes, 8))
+		  __get_dynamic_array(dst), min(__entry->nptes, 32u), 8),
+		  __entry->nptes > 32 ? "..." : "")
 );
 
 TRACE_EVENT(amdgpu_vm_set_ptes,
-- 
2.25.1