5 files changed, 203 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/nvdec/Kbuild b/drivers/gpu/drm/nouveau/nvkm/engine/nvdec/Kbuild
new file mode 100644
index 000000000..f05e79670
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/nvdec/Kbuild
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: MIT
+nvkm-y += nvkm/engine/nvdec/base.o
+nvkm-y += nvkm/engine/nvdec/gm107.o
+nvkm-y += nvkm/engine/nvdec/ga102.o
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/nvdec/base.c b/drivers/gpu/drm/nouveau/nvkm/engine/nvdec/base.c
new file mode 100644
index 000000000..1f6e3b32b
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/nvdec/base.c
@@ -0,0 +1,61 @@
+/*
+ * 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 "priv.h"
+#include <core/firmware.h>
+
+static void *
+nvkm_nvdec_dtor(struct nvkm_engine *engine)
+{
+	struct nvkm_nvdec *nvdec = nvkm_nvdec(engine);
+	nvkm_falcon_dtor(&nvdec->falcon);
+	return nvdec;
+}
+
+static const struct nvkm_engine_func
+nvkm_nvdec = {
+	.dtor = nvkm_nvdec_dtor,
+};
+
+int
+nvkm_nvdec_new_(const struct nvkm_nvdec_fwif *fwif, struct nvkm_device *device,
+		enum nvkm_subdev_type type, int inst, u32 addr, struct nvkm_nvdec **pnvdec)
+{
+	struct nvkm_nvdec *nvdec;
+	int ret;
+
+	if (!(nvdec = *pnvdec = kzalloc(sizeof(*nvdec), GFP_KERNEL)))
+		return -ENOMEM;
+
+	ret = nvkm_engine_ctor(&nvkm_nvdec, device, type, inst, true,
+			       &nvdec->engine);
+	if (ret)
+		return ret;
+
+	fwif = nvkm_firmware_load(&nvdec->engine.subdev, fwif, "Nvdec", nvdec);
+	if (IS_ERR(fwif))
+		return -ENODEV;
+
+	nvdec->func = fwif->func;
+
+	return nvkm_falcon_ctor(nvdec->func->flcn, &nvdec->engine.subdev,
+				nvdec->engine.subdev.name, addr, &nvdec->falcon);
+};
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/nvdec/ga102.c b/drivers/gpu/drm/nouveau/nvkm/engine/nvdec/ga102.c
new file mode 100644
index 000000000..37d8c3c0f
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/nvdec/ga102.c
@@ -0,0 +1,61 @@
+/*
+ * Copyright 2021 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/mc.h>
+#include <subdev/timer.h>
+
+static const struct nvkm_falcon_func
+ga102_nvdec_flcn = {
+	.disable = gm200_flcn_disable,
+	.enable = gm200_flcn_enable,
+	.addr2 = 0x1c00,
+	.reset_pmc = true,
+	.reset_prep = ga102_flcn_reset_prep,
+	.reset_wait_mem_scrubbing = ga102_flcn_reset_wait_mem_scrubbing,
+	.imem_dma = &ga102_flcn_dma,
+	.dmem_dma = &ga102_flcn_dma,
+};
+
+static const struct nvkm_nvdec_func
+ga102_nvdec = {
+	.flcn = &ga102_nvdec_flcn,
+};
+
+static int
+ga102_nvdec_nofw(struct nvkm_nvdec *nvdec, int ver, const struct nvkm_nvdec_fwif *fwif)
+{
+	return 0;
+}
+
+static const struct nvkm_nvdec_fwif
+ga102_nvdec_fwif[] = {
+	{ -1, ga102_nvdec_nofw, &ga102_nvdec },
+	{}
+};
+
+int
+ga102_nvdec_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+		struct nvkm_nvdec **pnvdec)
+{
+	return nvkm_nvdec_new_(ga102_nvdec_fwif, device, type, inst, 0x848000, pnvdec);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/nvdec/gm107.c b/drivers/gpu/drm/nouveau/nvkm/engine/nvdec/gm107.c
new file mode 100644
index 000000000..564f7e896
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/nvdec/gm107.c
@@ -0,0 +1,58 @@
+/*
+ * 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 "priv.h"
+
+static const struct nvkm_falcon_func
+gm107_nvdec_flcn = {
+	.disable = gm200_flcn_disable,
+	.enable = gm200_flcn_enable,
+	.reset_pmc = true,
+	.reset_wait_mem_scrubbing = gm200_flcn_reset_wait_mem_scrubbing,
+	.debug = 0xd00,
+	.imem_pio = &gm200_flcn_imem_pio,
+	.dmem_pio = &gm200_flcn_dmem_pio,
+};
+
+static const struct nvkm_nvdec_func
+gm107_nvdec = {
+	.flcn = &gm107_nvdec_flcn,
+};
+
+static int
+gm107_nvdec_nofw(struct nvkm_nvdec *nvdec, int ver,
+		 const struct nvkm_nvdec_fwif *fwif)
+{
+	return 0;
+}
+
+static const struct nvkm_nvdec_fwif
+gm107_nvdec_fwif[] = {
+	{ -1, gm107_nvdec_nofw, &gm107_nvdec },
+	{}
+};
+
+int
+gm107_nvdec_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+		struct nvkm_nvdec **pnvdec)
+{
+	return nvkm_nvdec_new_(gm107_nvdec_fwif, device, type, inst, 0, pnvdec);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/nvdec/priv.h b/drivers/gpu/drm/nouveau/nvkm/engine/nvdec/priv.h
new file mode 100644
index 000000000..61e1f7aaa
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/nvdec/priv.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: MIT */
+#ifndef __NVKM_NVDEC_PRIV_H__
+#define __NVKM_NVDEC_PRIV_H__
+#include <engine/nvdec.h>
+
+struct nvkm_nvdec_func {
+	const struct nvkm_falcon_func *flcn;
+};
+
+struct nvkm_nvdec_fwif {
+	int version;
+	int (*load)(struct nvkm_nvdec *, int ver,
+		    const struct nvkm_nvdec_fwif *);
+	const struct nvkm_nvdec_func *func;
+};
+
+int nvkm_nvdec_new_(const struct nvkm_nvdec_fwif *fwif, struct nvkm_device *,
+		    enum nvkm_subdev_type, int, u32 addr, struct nvkm_nvdec **);
+#endif