drm/nouveau: inform userspace of relaxed kernel subchannel requirements

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

1 files changed, 2 insertions, 9 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_channel.c b/drivers/gpu/drm/nouveau/nouveau_channel.c
index 337e228629ed..846afb0bfef4 100644
--- a/drivers/gpu/drm/nouveau/nouveau_channel.c
+++ b/drivers/gpu/drm/nouveau/nouveau_channel.c
@@ -436,18 +436,11 @@ nouveau_ioctl_fifo_alloc(struct drm_device *dev, void *data,
         }
 
         if (dev_priv->card_type < NV_C0) {
-                init->subchan[0].handle = NvM2MF;
-                if (dev_priv->card_type < NV_50)
-                        init->subchan[0].grclass = 0x0039;
-                else
-                        init->subchan[0].grclass = 0x5039;
+                init->subchan[0].handle = 0x00000000;
+                init->subchan[0].grclass = 0x0000;
                 init->subchan[1].handle = NvSw;
                 init->subchan[1].grclass = NV_SW;
                 init->nr_subchan = 2;
-        } else {
-                init->subchan[0].handle  = 0x9039;
-                init->subchan[0].grclass = 0x9039;
-                init->nr_subchan = 1;
         }
 
         /* Named memory object area */