From: Ben Skeggs <bskeggs@redhat.com>
Date: Tue, 8 May 2018 10:39:47 +0000 (+1000)
Subject: drm/nouveau: no need to create ctxdma for push buffers on fermi and up
X-Git-Tag: v4.18-rc1~128^2~7^2~63
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=92b4eaaf9a84a7bd35db6f903c0ecbda4f9594ee;p=thirdparty%2Fkernel%2Flinux.git

drm/nouveau: no need to create ctxdma for push buffers on fermi and up

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

diff --git a/drivers/gpu/drm/nouveau/nouveau_chan.c b/drivers/gpu/drm/nouveau/nouveau_chan.c
index 67950a5c56ce9..97900e9cfe3f5 100644
--- a/drivers/gpu/drm/nouveau/nouveau_chan.c
+++ b/drivers/gpu/drm/nouveau/nouveau_chan.c
@@ -163,12 +163,15 @@ nouveau_channel_prep(struct nouveau_drm *drm, struct nvif_device *device,
 			return ret;
 		}
 
+		chan->push.addr = chan->push.vma->addr;
+
+		if (device->info.family >= NV_DEVICE_INFO_V0_FERMI)
+			return 0;
+
 		args.target = NV_DMA_V0_TARGET_VM;
 		args.access = NV_DMA_V0_ACCESS_VM;
 		args.start = 0;
 		args.limit = cli->vmm.vmm.limit - 1;
-
-		chan->push.addr = chan->push.vma->addr;
 	} else
 	if (chan->push.buffer->bo.mem.mem_type == TTM_PL_VRAM) {
 		if (device->info.family == NV_DEVICE_INFO_V0_TNT) {