drm/nouveau/fifo: add GP10B support

GP10B's FIFO is similar to GP100's, but only allows 512 channels.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/include/nvkm/engine/fifo.h

@@ -68,4 +68,5 @@ int gm107_fifo_new(struct nvkm_device *, int, struct nvkm_fifo **);
 int gm200_fifo_new(struct nvkm_device *, int, struct nvkm_fifo **);
 int gm20b_fifo_new(struct nvkm_device *, int, struct nvkm_fifo **);
 int gp100_fifo_new(struct nvkm_device *, int, struct nvkm_fifo **);
+int gp10b_fifo_new(struct nvkm_device *, int, struct nvkm_fifo **);
 #endif

drivers/gpu/drm/nouveau/nvkm/engine/fifo/Kbuild

@@ -14,6 +14,7 @@ nvkm-y += nvkm/engine/fifo/gm107.o
 nvkm-y += nvkm/engine/fifo/gm200.o
 nvkm-y += nvkm/engine/fifo/gm20b.o
 nvkm-y += nvkm/engine/fifo/gp100.o
+nvkm-y += nvkm/engine/fifo/gp10b.o
 
 nvkm-y += nvkm/engine/fifo/chan.o
 nvkm-y += nvkm/engine/fifo/channv50.o

drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.h

@@ -83,4 +83,5 @@ extern const struct nvkm_enum gk104_fifo_fault_hubclient[];
 extern const struct nvkm_enum gk104_fifo_fault_gpcclient[];
 
 extern const struct nvkm_enum gm107_fifo_fault_engine[];
+extern const struct nvkm_enum gp100_fifo_fault_engine[];
 #endif

drivers/gpu/drm/nouveau/nvkm/engine/fifo/gp100.c

@@ -24,7 +24,7 @@
 #include "gk104.h"
 #include "changk104.h"
 
-static const struct nvkm_enum
+const struct nvkm_enum
 gp100_fifo_fault_engine[] = {
 	{ 0x01, "DISPLAY" },
 	{ 0x03, "IFB", NULL, NVKM_ENGINE_IFB },

drivers/gpu/drm/nouveau/nvkm/engine/fifo/gp10b.c

@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+#include "gk104.h"
+#include "changk104.h"
+
+static const struct gk104_fifo_func
+gp10b_fifo = {
+	.fault.engine = gp100_fifo_fault_engine,
+	.fault.reason = gk104_fifo_fault_reason,
+	.fault.hubclient = gk104_fifo_fault_hubclient,
+	.fault.gpcclient = gk104_fifo_fault_gpcclient,
+	.chan = {
+		&gp100_fifo_gpfifo_oclass,
+		NULL
+	},
+};
+
+int
+gp10b_fifo_new(struct nvkm_device *device, int index, struct nvkm_fifo **pfifo)
+{
+	return gk104_fifo_new_(&gp10b_fifo, device, index, 512, pfifo);
+}