drm/amdkfd: Fix APU to use GTT, not VRAM for MQD

Louis-He · alexdeucher · commit 8446c747370a · 2026-02-12T15:23:45.000-05:00
Add a check in mqd_on_vram. If the device prefers GTT, it returns false Fixes: d4a814f ("drm/amdkfd: Move gfx9.4.3 and gfx 9.5 MQD to HBM") Signed-off-by: Siwei He <siwei.he@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v9.c b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v9.c
@@ -111,6 +111,9 @@ static void set_priority(struct v9_mqd *m, struct queue_properties *q)
 
 static bool mqd_on_vram(struct amdgpu_device *adev)
 {
+	if (adev->apu_prefer_gtt)
+		return false;
+
 	switch (amdgpu_ip_version(adev, GC_HWIP, 0)) {
 	case IP_VERSION(9, 4, 3):
 	case IP_VERSION(9, 5, 0):

Original file line number	Diff line number	Diff line change
`@@ -111,6 +111,9 @@ static void set_priority(struct v9_mqd m, struct queue_properties q)`
`111`	`111`
`112`	`112`	`static bool mqd_on_vram(struct amdgpu_device *adev)`
`113`	`113`	`{`
	`114`	`+ if (adev->apu_prefer_gtt)`
	`115`	`+ return false;`
	`116`	`+`
`114`	`117`	`switch (amdgpu_ip_version(adev, GC_HWIP, 0)) {`
`115`	`118`	`case IP_VERSION(9, 4, 3):`
`116`	`119`	`case IP_VERSION(9, 5, 0):`