drm/asahi: fw/channels: Identify subpipe (?) field in tvb ack

Signed-off-by: Asahi Lina <[email protected]>

Author: hoshinolina

drivers/gpu/drm/asahi/fw/channels.rs

@@ -177,7 +177,8 @@ pub(crate) enum DeviceControlMsg {
         buffer_slot: u32,
         vm_slot: u32,
         counter: u32,
-        __pad: Pad<{ DEVICECONTROL_SZ::ver - 0x10 }>,
+        subpipe: u32,
+        __pad: Pad<{ DEVICECONTROL_SZ::ver - 0x14 }>,
     },
     Unk0e(Array<DEVICECONTROL_SZ::ver, u8>),
     Unk0f(Array<DEVICECONTROL_SZ::ver, u8>),

drivers/gpu/drm/asahi/gpu.rs

@@ -1248,6 +1248,7 @@ impl GpuManager for GpuManager::ver {
             buffer_slot,
             vm_slot,
             counter,
+            subpipe: 0, // TODO
             __pad: Default::default(),
         };