drm/nouveau/gsp/r535: add support for booting GSP-RM

This commit adds the initial code needed to boot the GSP-RM firmware
provided by NVIDIA, bringing with it the beginnings of Ada support.

Until it's had more testing and time to bake, support is disabled by
default (except on Ada).  GSP-RM usage can be enabled by passing the
"config=NvGspRm=1" module option.

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/nvif/cl0080.h

@@ -35,6 +35,7 @@ struct nv_device_info_v0 {
 #define NV_DEVICE_INFO_V0_VOLTA                                            0x0b
 #define NV_DEVICE_INFO_V0_TURING                                           0x0c
 #define NV_DEVICE_INFO_V0_AMPERE                                           0x0d
+#define NV_DEVICE_INFO_V0_ADA                                              0x0e
 	__u8  family;
 	__u8  pad06[2];
 	__u64 ram_size;

drivers/gpu/drm/nouveau/include/nvkm/core/device.h

@@ -46,6 +46,7 @@ struct nvkm_device {
 		GV100    = 0x140,
 		TU100    = 0x160,
 		GA100    = 0x170,
+		AD100    = 0x190,
 	} card_type;
 	u32 chipset;
 	u8  chiprev;

drivers/gpu/drm/nouveau/include/nvkm/core/falcon.h

@@ -48,6 +48,7 @@ int nvkm_falcon_pio_rd(struct nvkm_falcon *, u8 port, enum nvkm_falcon_mem type,
 		       const u8 *img, u32 img_base, int len);
 int nvkm_falcon_dma_wr(struct nvkm_falcon *, const u8 *img, u64 dma_addr, u32 dma_base,
 		       enum nvkm_falcon_mem mem_type, u32 mem_base, int len, bool sec);
+bool nvkm_falcon_riscv_active(struct nvkm_falcon *);
 
 int gm200_flcn_reset_wait_mem_scrubbing(struct nvkm_falcon *);
 int gm200_flcn_disable(struct nvkm_falcon *);
@@ -61,10 +62,13 @@ void gm200_flcn_tracepc(struct nvkm_falcon *);
 int gp102_flcn_reset_eng(struct nvkm_falcon *);
 extern const struct nvkm_falcon_func_pio gp102_flcn_emem_pio;
 
+bool tu102_flcn_riscv_active(struct nvkm_falcon *);
+
 int ga102_flcn_select(struct nvkm_falcon *);
 int ga102_flcn_reset_prep(struct nvkm_falcon *);
 int ga102_flcn_reset_wait_mem_scrubbing(struct nvkm_falcon *);
 extern const struct nvkm_falcon_func_dma ga102_flcn_dma;
+bool ga102_flcn_riscv_active(struct nvkm_falcon *);
 
 void nvkm_falcon_v1_load_imem(struct nvkm_falcon *,
 			      void *, u32, u32, u16, u8, bool);

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

@@ -87,6 +87,8 @@ struct nvkm_falcon_func {
 		u32 stride;
 	} cmdq, msgq;
 
+	bool (*riscv_active)(struct nvkm_falcon *);
+
 	struct {
 		u32 *data;
 		u32  size;

drivers/gpu/drm/nouveau/include/nvkm/subdev/bios.h

@@ -29,6 +29,7 @@ int nvbios_memcmp(struct nvkm_bios *, u32 addr, const char *, u32 len);
 u8  nvbios_rd08(struct nvkm_bios *, u32 addr);
 u16 nvbios_rd16(struct nvkm_bios *, u32 addr);
 u32 nvbios_rd32(struct nvkm_bios *, u32 addr);
+void *nvbios_pointer(struct nvkm_bios *, u32 addr);
 
 int nvkm_bios_new(struct nvkm_device *, enum nvkm_subdev_type, int, struct nvkm_bios **);
 #endif

drivers/gpu/drm/nouveau/include/nvkm/subdev/gsp.h

@@ -3,23 +3,192 @@
 #define nvkm_gsp(p) container_of((p), struct nvkm_gsp, subdev)
 #include <core/subdev.h>
 #include <core/falcon.h>
+#include <core/firmware.h>
+
+#define GSP_PAGE_SHIFT 12
+#define GSP_PAGE_SIZE  BIT(GSP_PAGE_SHIFT)
+
+struct nvkm_gsp_mem {
+	u32 size;
+	void *data;
+	dma_addr_t addr;
+};
+
+struct nvkm_gsp_radix3 {
+	struct nvkm_gsp_mem mem[3];
+};
+
+int nvkm_gsp_sg(struct nvkm_device *, u64 size, struct sg_table *);
+void nvkm_gsp_sg_free(struct nvkm_device *, struct sg_table *);
+
+typedef int (*nvkm_gsp_msg_ntfy_func)(void *priv, u32 fn, void *repv, u32 repc);
 
 struct nvkm_gsp {
 	const struct nvkm_gsp_func *func;
 	struct nvkm_subdev subdev;
 
 	struct nvkm_falcon falcon;
+
+	struct {
+		struct {
+			const struct firmware *load;
+			const struct firmware *unload;
+		} booter;
+		const struct firmware *bl;
+		const struct firmware *rm;
+	} fws;
+
+	struct nvkm_firmware fw;
+	struct nvkm_gsp_mem sig;
+	struct nvkm_gsp_radix3 radix3;
+
+	struct {
+		struct {
+			struct {
+				u64 addr;
+				u64 size;
+			} vga_workspace;
+			u64 addr;
+			u64 size;
+		} bios;
+		struct {
+			struct {
+				u64 addr;
+				u64 size;
+			} frts, boot, elf, heap;
+			u64 addr;
+			u64 size;
+		} wpr2;
+		struct {
+			u64 addr;
+			u64 size;
+		} heap;
+		u64 addr;
+		u64 size;
+	} fb;
+
+	struct {
+		struct nvkm_falcon_fw load;
+		struct nvkm_falcon_fw unload;
+	} booter;
+
+	struct {
+		struct nvkm_gsp_mem fw;
+		u32 code_offset;
+		u32 data_offset;
+		u32 manifest_offset;
+		u32 app_version;
+	} boot;
+
+	struct nvkm_gsp_mem libos;
+	struct nvkm_gsp_mem loginit;
+	struct nvkm_gsp_mem logintr;
+	struct nvkm_gsp_mem logrm;
+	struct nvkm_gsp_mem rmargs;
+
+	struct nvkm_gsp_mem wpr_meta;
+
+	struct {
+		struct sg_table sgt;
+		struct nvkm_gsp_radix3 radix3;
+		struct nvkm_gsp_mem meta;
+	} sr;
+
+	struct {
+		struct nvkm_gsp_mem mem;
+
+		struct {
+			int   nr;
+			u32 size;
+			u64 *ptr;
+		} ptes;
+
+		struct {
+			u32  size;
+			void *ptr;
+		} cmdq, msgq;
+	} shm;
+
+	struct nvkm_gsp_cmdq {
+		struct mutex mutex;
+		u32 cnt;
+		u32 seq;
+		u32 *wptr;
+		u32 *rptr;
+	} cmdq;
+
+	struct nvkm_gsp_msgq {
+		struct mutex mutex;
+		u32 cnt;
+		u32 *wptr;
+		u32 *rptr;
+		struct nvkm_gsp_msgq_ntfy {
+			u32 fn;
+			nvkm_gsp_msg_ntfy_func func;
+			void *priv;
+		} ntfy[16];
+		int ntfy_nr;
+	} msgq;
+
+	bool running;
+
+	const struct nvkm_gsp_rm {
+		void *(*rpc_get)(struct nvkm_gsp *, u32 fn, u32 argc);
+		void *(*rpc_push)(struct nvkm_gsp *, void *argv, bool wait, u32 repc);
+		void (*rpc_done)(struct nvkm_gsp *gsp, void *repv);
+	} *rm;
 };
 
 static inline bool
 nvkm_gsp_rm(struct nvkm_gsp *gsp)
 {
-	return false;
+	return gsp && (gsp->fws.rm || gsp->fw.img);
+}
+
+static inline void *
+nvkm_gsp_rpc_get(struct nvkm_gsp *gsp, u32 fn, u32 argc)
+{
+	return gsp->rm->rpc_get(gsp, fn, argc);
+}
+
+static inline void *
+nvkm_gsp_rpc_push(struct nvkm_gsp *gsp, void *argv, bool wait, u32 repc)
+{
+	return gsp->rm->rpc_push(gsp, argv, wait, repc);
+}
+
+static inline void *
+nvkm_gsp_rpc_rd(struct nvkm_gsp *gsp, u32 fn, u32 argc)
+{
+	void *argv = nvkm_gsp_rpc_get(gsp, fn, argc);
+
+	if (IS_ERR_OR_NULL(argv))
+		return argv;
+
+	return nvkm_gsp_rpc_push(gsp, argv, true, argc);
+}
+
+static inline int
+nvkm_gsp_rpc_wr(struct nvkm_gsp *gsp, void *argv, bool wait)
+{
+	void *repv = nvkm_gsp_rpc_push(gsp, argv, wait, 0);
+
+	if (IS_ERR(repv))
+		return PTR_ERR(repv);
+
+	return 0;
+}
+
+static inline void
+nvkm_gsp_rpc_done(struct nvkm_gsp *gsp, void *repv)
+{
+	gsp->rm->rpc_done(gsp, repv);
 }
 
 int gv100_gsp_new(struct nvkm_device *, enum nvkm_subdev_type, int, struct nvkm_gsp **);
 int tu102_gsp_new(struct nvkm_device *, enum nvkm_subdev_type, int, struct nvkm_gsp **);
 int tu116_gsp_new(struct nvkm_device *, enum nvkm_subdev_type, int, struct nvkm_gsp **);
 int ga100_gsp_new(struct nvkm_device *, enum nvkm_subdev_type, int, struct nvkm_gsp **);
 int ga102_gsp_new(struct nvkm_device *, enum nvkm_subdev_type, int, struct nvkm_gsp **);
+int ad102_gsp_new(struct nvkm_device *, enum nvkm_subdev_type, int, struct nvkm_gsp **);
 #endif

drivers/gpu/drm/nouveau/include/nvrm/535.54.03/common/sdk/nvidia/inc/ctrl/ctrl0073/ctrl0073system.h

@@ -0,0 +1,31 @@
+#ifndef __src_common_sdk_nvidia_inc_ctrl_ctrl0073_ctrl0073system_h__
+#define __src_common_sdk_nvidia_inc_ctrl_ctrl0073_ctrl0073system_h__
+
+/* Excerpt of RM headers from https://github.com/NVIDIA/open-gpu-kernel-modules/tree/535.54.03 */
+
+/*
+ * SPDX-FileCopyrightText: Copyright (c) 2005-2021 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+ * SPDX-License-Identifier: MIT
+ *
+ * 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.
+ */
+
+#define NV0073_CTRL_SYSTEM_ACPI_ID_MAP_MAX_DISPLAYS             (16U)
+
+#endif

drivers/gpu/drm/nouveau/include/nvrm/535.54.03/common/sdk/nvidia/inc/ctrl/ctrl2080/ctrl2080gpu.h

@@ -0,0 +1,33 @@
+#ifndef __src_common_sdk_nvidia_inc_ctrl_ctrl2080_ctrl2080gpu_h__
+#define __src_common_sdk_nvidia_inc_ctrl_ctrl2080_ctrl2080gpu_h__
+
+/* Excerpt of RM headers from https://github.com/NVIDIA/open-gpu-kernel-modules/tree/535.54.03 */
+
+/*
+ * SPDX-FileCopyrightText: Copyright (c) 2006-2023 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+ * SPDX-License-Identifier: MIT
+ *
+ * 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.
+ */
+
+#define NV2080_CTRL_GPU_SET_POWER_STATE_GPU_LEVEL_0            (0x00000000U)
+
+#define NV2080_CTRL_GPU_SET_POWER_STATE_GPU_LEVEL_3            (0x00000003U)
+
+#endif

drivers/gpu/drm/nouveau/include/nvrm/535.54.03/common/shared/msgq/inc/msgq/msgq_priv.h

@@ -0,0 +1,46 @@
+#ifndef __src_common_shared_msgq_inc_msgq_msgq_priv_h__
+#define __src_common_shared_msgq_inc_msgq_msgq_priv_h__
+
+/* Excerpt of RM headers from https://github.com/NVIDIA/open-gpu-kernel-modules/tree/535.54.03 */
+
+/*
+ * SPDX-FileCopyrightText: Copyright (c) 2018-2019 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+ * SPDX-License-Identifier: MIT
+ *
+ * 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.
+ */
+
+typedef struct
+{
+    NvU32 version;   // queue version
+    NvU32 size;      // bytes, page aligned
+    NvU32 msgSize;   // entry size, bytes, must be power-of-2, 16 is minimum
+    NvU32 msgCount;  // number of entries in queue
+    NvU32 writePtr;  // message id of next slot
+    NvU32 flags;     // if set it means "i want to swap RX"
+    NvU32 rxHdrOff;  // Offset of msgqRxHeader from start of backing store.
+    NvU32 entryOff;  // Offset of entries from start of backing store.
+} msgqTxHeader;
+
+typedef struct
+{
+    NvU32 readPtr; // message id of last message read
+} msgqRxHeader;
+
+#endif