drm/nouveau/nvdec/tu102-: prepare for GSP-RM

- (temporarily) disable if GSP-RM detected, will be added later
- provide empty class list for non-GSP paths
- split tu102- from gm107, they will provide host classes later
- fixup HW engine instance masks

Signed-off-by: Ben Skeggs <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

Author: Ben Skeggs

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

@@ -12,5 +12,6 @@ struct nvkm_nvdec {
 };
 
 int gm107_nvdec_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_nvdec **);
+int tu102_nvdec_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_nvdec **);
 int ga102_nvdec_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_nvdec **);
 #endif

drivers/gpu/drm/nouveau/nvkm/engine/device/base.c

@@ -2426,7 +2426,7 @@ nv162_chipset = {
 	.dma      = { 0x00000001, gv100_dma_new },
 	.fifo     = { 0x00000001, tu102_fifo_new },
 	.gr       = { 0x00000001, tu102_gr_new },
-	.nvdec    = { 0x00000001, gm107_nvdec_new },
+	.nvdec    = { 0x00000001, tu102_nvdec_new },
 	.nvenc    = { 0x00000001, gm107_nvenc_new },
 	.sec2     = { 0x00000001, tu102_sec2_new },
 };
@@ -2461,7 +2461,7 @@ nv164_chipset = {
 	.dma      = { 0x00000001, gv100_dma_new },
 	.fifo     = { 0x00000001, tu102_fifo_new },
 	.gr       = { 0x00000001, tu102_gr_new },
-	.nvdec    = { 0x00000003, gm107_nvdec_new },
+	.nvdec    = { 0x00000003, tu102_nvdec_new },
 	.nvenc    = { 0x00000001, gm107_nvenc_new },
 	.sec2     = { 0x00000001, tu102_sec2_new },
 };
@@ -2496,7 +2496,7 @@ nv166_chipset = {
 	.dma      = { 0x00000001, gv100_dma_new },
 	.fifo     = { 0x00000001, tu102_fifo_new },
 	.gr       = { 0x00000001, tu102_gr_new },
-	.nvdec    = { 0x00000007, gm107_nvdec_new },
+	.nvdec    = { 0x00000007, tu102_nvdec_new },
 	.nvenc    = { 0x00000001, gm107_nvenc_new },
 	.sec2     = { 0x00000001, tu102_sec2_new },
 };
@@ -2531,7 +2531,7 @@ nv167_chipset = {
 	.dma      = { 0x00000001, gv100_dma_new },
 	.fifo     = { 0x00000001, tu102_fifo_new },
 	.gr       = { 0x00000001, tu102_gr_new },
-	.nvdec    = { 0x00000001, gm107_nvdec_new },
+	.nvdec    = { 0x00000001, tu102_nvdec_new },
 	.nvenc    = { 0x00000001, gm107_nvenc_new },
 	.sec2     = { 0x00000001, tu102_sec2_new },
 };
@@ -2566,7 +2566,7 @@ nv168_chipset = {
 	.dma      = { 0x00000001, gv100_dma_new },
 	.fifo     = { 0x00000001, tu102_fifo_new },
 	.gr       = { 0x00000001, tu102_gr_new },
-	.nvdec    = { 0x00000001, gm107_nvdec_new },
+	.nvdec    = { 0x00000001, tu102_nvdec_new },
 	.nvenc    = { 0x00000001, gm107_nvenc_new },
 	.sec2     = { 0x00000001, tu102_sec2_new },
 };
@@ -2620,7 +2620,7 @@ nv172_chipset = {
 	.dma      = { 0x00000001, gv100_dma_new },
 	.fifo     = { 0x00000001, ga102_fifo_new },
 	.gr       = { 0x00000001, ga102_gr_new },
-	.nvdec    = { 0x00000001, ga102_nvdec_new },
+	.nvdec    = { 0x00000003, ga102_nvdec_new },
 	.sec2     = { 0x00000001, ga102_sec2_new },
 };
 
@@ -2650,7 +2650,7 @@ nv173_chipset = {
 	.dma      = { 0x00000001, gv100_dma_new },
 	.fifo     = { 0x00000001, ga102_fifo_new },
 	.gr       = { 0x00000001, ga102_gr_new },
-	.nvdec    = { 0x00000001, ga102_nvdec_new },
+	.nvdec    = { 0x00000003, ga102_nvdec_new },
 	.sec2     = { 0x00000001, ga102_sec2_new },
 };
 
@@ -2680,7 +2680,7 @@ nv174_chipset = {
 	.dma      = { 0x00000001, gv100_dma_new },
 	.fifo     = { 0x00000001, ga102_fifo_new },
 	.gr       = { 0x00000001, ga102_gr_new },
-	.nvdec    = { 0x00000001, ga102_nvdec_new },
+	.nvdec    = { 0x00000003, ga102_nvdec_new },
 	.sec2     = { 0x00000001, ga102_sec2_new },
 };
 
@@ -2710,7 +2710,7 @@ nv176_chipset = {
 	.dma      = { 0x00000001, gv100_dma_new },
 	.fifo     = { 0x00000001, ga102_fifo_new },
 	.gr       = { 0x00000001, ga102_gr_new },
-	.nvdec    = { 0x00000001, ga102_nvdec_new },
+	.nvdec    = { 0x00000003, ga102_nvdec_new },
 	.sec2     = { 0x00000001, ga102_sec2_new },
 };
 
@@ -2740,7 +2740,7 @@ nv177_chipset = {
 	.dma      = { 0x00000001, gv100_dma_new },
 	.fifo     = { 0x00000001, ga102_fifo_new },
 	.gr       = { 0x00000001, ga102_gr_new },
-	.nvdec    = { 0x00000001, ga102_nvdec_new },
+	.nvdec    = { 0x00000003, ga102_nvdec_new },
 	.sec2     = { 0x00000001, ga102_sec2_new },
 };
 

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

@@ -1,4 +1,5 @@
 # SPDX-License-Identifier: MIT
 nvkm-y += nvkm/engine/nvdec/base.o
 nvkm-y += nvkm/engine/nvdec/gm107.o
+nvkm-y += nvkm/engine/nvdec/tu102.o
 nvkm-y += nvkm/engine/nvdec/ga102.o

drivers/gpu/drm/nouveau/nvkm/engine/nvdec/base.c

@@ -33,6 +33,7 @@ nvkm_nvdec_dtor(struct nvkm_engine *engine)
 static const struct nvkm_engine_func
 nvkm_nvdec = {
 	.dtor = nvkm_nvdec_dtor,
+	.sclass = { {} },
 };
 
 int
@@ -58,4 +59,4 @@ nvkm_nvdec_new_(const struct nvkm_nvdec_fwif *fwif, struct nvkm_device *device,
 
 	return nvkm_falcon_ctor(nvdec->func->flcn, &nvdec->engine.subdev,
 				nvdec->engine.subdev.name, addr, &nvdec->falcon);
-};
+}

drivers/gpu/drm/nouveau/nvkm/engine/nvdec/ga102.c

@@ -21,6 +21,7 @@
  */
 #include "priv.h"
 
+#include <subdev/gsp.h>
 #include <subdev/mc.h>
 #include <subdev/timer.h>
 
@@ -57,5 +58,8 @@ int
 ga102_nvdec_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
 		struct nvkm_nvdec **pnvdec)
 {
+	if (nvkm_gsp_rm(device->gsp))
+		return -ENODEV;
+
 	return nvkm_nvdec_new_(ga102_nvdec_fwif, device, type, inst, 0x848000, pnvdec);
 }

drivers/gpu/drm/nouveau/nvkm/engine/nvdec/gm107.c

@@ -44,7 +44,7 @@ gm107_nvdec_nofw(struct nvkm_nvdec *nvdec, int ver,
 	return 0;
 }
 
-static const struct nvkm_nvdec_fwif
+const struct nvkm_nvdec_fwif
 gm107_nvdec_fwif[] = {
 	{ -1, gm107_nvdec_nofw, &gm107_nvdec },
 	{}

drivers/gpu/drm/nouveau/nvkm/engine/nvdec/priv.h

@@ -14,6 +14,8 @@ struct nvkm_nvdec_fwif {
 	const struct nvkm_nvdec_func *func;
 };
 
+extern const struct nvkm_nvdec_fwif gm107_nvdec_fwif[];
+
 int nvkm_nvdec_new_(const struct nvkm_nvdec_fwif *fwif, struct nvkm_device *,
 		    enum nvkm_subdev_type, int, u32 addr, struct nvkm_nvdec **);
 #endif

drivers/gpu/drm/nouveau/nvkm/engine/nvdec/tu102.c

@@ -0,0 +1,34 @@
+/*
+ * Copyright 2023 Red Hat Inc.
+ *
+ * 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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 "priv.h"
+
+#include <subdev/gsp.h>
+
+int
+tu102_nvdec_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+		struct nvkm_nvdec **pnvdec)
+{
+	if (nvkm_gsp_rm(device->gsp))
+		return -ENODEV;
+
+	return nvkm_nvdec_new_(gm107_nvdec_fwif, device, type, inst, 0, pnvdec);
+}