Re: [PATCH V1] accel/amdxdna: Handle DETACH_DEBUG_BO through config_debug_bo path

From: Lizhi Hou

Date: Tue Apr 07 2026 - 13:23:38 EST



On 4/6/26 14:29, Mario Limonciello wrote:


On 4/6/26 16:14, Lizhi Hou wrote:
From: Max Zhen <max.zhen@xxxxxxx>

Route DETACH_DEBUG_BO through aie2_config_debug_bo() the same way as
ATTACH_DEBUG_BO.

The scheduler switch in aie2_sched_job_run() already handles
ATTACH_DEBUG_BO with aie2_config_debug_bo(), but DETACH_DEBUG_BO was
not included in that path. Add an explicit fallthrough so both attach
and detach operations use the same handler.

This fixes debug BO detach handling by ensuring the detach command is
processed by the expected configuration path.

Fixes: 7ea046838021 ("accel/amdxdna: Support firmware debug buffer")
Signed-off-by: Max Zhen <max.zhen@xxxxxxx>
Signed-off-by: Lizhi Hou <lizhi.hou@xxxxxxx>
---
  drivers/accel/amdxdna/aie2_ctx.c | 2 ++
  1 file changed, 2 insertions(+)

diff --git a/drivers/accel/amdxdna/aie2_ctx.c b/drivers/accel/amdxdna/aie2_ctx.c
index 8db32f8e2362..c464cf8024c3 100644
--- a/drivers/accel/amdxdna/aie2_ctx.c
+++ b/drivers/accel/amdxdna/aie2_ctx.c
@@ -360,6 +360,8 @@ aie2_sched_job_run(struct drm_sched_job *sched_job)
              ret = aie2_sync_bo(hwctx, job, aie2_sched_drvcmd_resp_handler);
              break;
          case ATTACH_DEBUG_BO:
+            fallthrough;
+        case DETACH_DEBUG_BO:

TBH - I don't think you actually need the fallthrough command here unless you plan to add new code in the ATTACH_DEBUG_BO case.

IE you can do this:

case ATTACH_DEBUG_BO:
case DETACH_DEBUG_BO:

Reviewed-by: Mario Limonciello (AMD) <superm1@xxxxxxxxxx>

Thanks. Applied to drm-misc-next.

Lizhi


              ret = aie2_config_debug_bo(hwctx, job, aie2_sched_drvcmd_resp_handler);
              break;
          default: