summary refs log tree commit diff
path: root/drivers/gpu
diff options
context:
space:
mode:
authorBen Skeggs <bskeggs@redhat.com>2020-01-28 15:03:25 +1000
committerBen Skeggs <bskeggs@redhat.com>2020-01-29 15:49:56 +1000
commit86e18ebd87072ed1ba6ecd86271e7a712115d579 (patch)
treee551e80f809f4a87a691bd58318621d3c1bd202e /drivers/gpu
parent0e6176c6d286316e9431b4f695940cfac4ffe6c2 (diff)
downloadlinux-86e18ebd87072ed1ba6ecd86271e7a712115d579.tar.gz
drm/nouveau/disp/gv100-: not all channel types support reporting error codes
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/engine/disp/gv100.c23
1 files changed, 17 insertions, 6 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/gv100.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/gv100.c
index 892be6c9b76c..3aa2cc3af1e2 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/gv100.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/gv100.c
@@ -101,15 +101,26 @@ gv100_disp_exception(struct nv50_disp *disp, int chid)
 	u32 stat = nvkm_rd32(device, 0x611020 + (chid * 12));
 	u32 type = (stat & 0x00007000) >> 12;
 	u32 mthd = (stat & 0x00000fff) << 2;
-	u32 data = nvkm_rd32(device, 0x611024 + (chid * 12));
-	u32 code = nvkm_rd32(device, 0x611028 + (chid * 12));
 	const struct nvkm_enum *reason =
 		nvkm_enum_find(nv50_disp_intr_error_type, type);
 
-	nvkm_error(subdev, "chid %d stat %08x reason %d [%s] mthd %04x "
-			   "data %08x code %08x\n",
-		   chid, stat, type, reason ? reason->name : "",
-		   mthd, data, code);
+	/*TODO: Suspect 33->41 are for WRBK channel exceptions, but we
+	 *      don't support those currently.
+	 *
+	 *      CORE+WIN CHIDs map directly to the FE_EXCEPT() slots.
+	 */
+	if (chid <= 32) {
+		u32 data = nvkm_rd32(device, 0x611024 + (chid * 12));
+		u32 code = nvkm_rd32(device, 0x611028 + (chid * 12));
+		nvkm_error(subdev, "chid %d stat %08x reason %d [%s] "
+				   "mthd %04x data %08x code %08x\n",
+			   chid, stat, type, reason ? reason->name : "",
+			   mthd, data, code);
+	} else {
+		nvkm_error(subdev, "chid %d stat %08x reason %d [%s] "
+				   "mthd %04x\n",
+			   chid, stat, type, reason ? reason->name : "", mthd);
+	}
 
 	if (chid < ARRAY_SIZE(disp->chan) && disp->chan[chid]) {
 		switch (mthd) {