1 files changed, 497 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/gsp.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/gsp.h
new file mode 100644
index 000000000000..226c7ec56b8e
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/gsp.h
@@ -0,0 +1,497 @@
+#ifndef __NVKM_GSP_H__
+#define __NVKM_GSP_H__
+#define nvkm_gsp(p) container_of((p), struct nvkm_gsp, subdev)
+#include <core/subdev.h>
+#include <core/falcon.h>
+#include <core/firmware.h>
+
+#include <linux/debugfs.h>
+
+#define GSP_PAGE_SHIFT 12
+#define GSP_PAGE_SIZE  BIT(GSP_PAGE_SHIFT)
+
+struct nvkm_gsp_mem {
+	struct device *dev;
+	size_t size;
+	void *data;
+	dma_addr_t addr;
+};
+
+int nvkm_gsp_mem_ctor(struct nvkm_gsp *, size_t size, struct nvkm_gsp_mem *);
+void nvkm_gsp_mem_dtor(struct nvkm_gsp_mem *);
+
+struct nvkm_gsp_radix3 {
+	struct nvkm_gsp_mem lvl0;
+	struct nvkm_gsp_mem lvl1;
+	struct sg_table lvl2;
+};
+
+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_event;
+typedef void (*nvkm_gsp_event_func)(struct nvkm_gsp_event *, void *repv, u32 repc);
+
+/**
+ * DOC: GSP message handling policy
+ *
+ * When sending a GSP RPC command, there can be multiple cases of handling
+ * the GSP RPC messages, which are the reply of GSP RPC commands, according
+ * to the requirement of the callers and the nature of the GSP RPC commands.
+ *
+ * NVKM_GSP_RPC_REPLY_NOWAIT - If specified, immediately return to the
+ * caller after the GSP RPC command is issued.
+ *
+ * NVKM_GSP_RPC_REPLY_RECV - If specified, wait and receive the entire GSP
+ * RPC message after the GSP RPC command is issued.
+ *
+ * NVKM_GSP_RPC_REPLY_POLL - If specified, wait for the specific reply and
+ * discard the reply before returning to the caller.
+ *
+ */
+enum nvkm_gsp_rpc_reply_policy {
+	NVKM_GSP_RPC_REPLY_NOWAIT = 0,
+	NVKM_GSP_RPC_REPLY_RECV,
+	NVKM_GSP_RPC_REPLY_POLL,
+};
+
+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 *fmc;
+
+		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;
+
+		struct {
+			u64 addr;
+			u64 size;
+		} region[16];
+		int region_nr;
+		u32 rsvd_size;
+	} fb;
+
+	struct {
+		struct nvkm_falcon_fw load;
+		struct nvkm_falcon_fw unload;
+	} booter;
+
+	struct {
+		struct nvkm_gsp_mem fw;
+		u8 *hash;
+		u8 *pkey;
+		u8 *sig;
+
+		struct nvkm_gsp_mem args;
+	} fmc;
+
+	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;
+		struct sg_table fbsr;
+	} 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;
+		struct work_struct work;
+	} msgq;
+
+	bool running;
+
+	/* Internal GSP-RM control handles. */
+	struct {
+		struct nvkm_gsp_client {
+			struct nvkm_gsp_object {
+				struct nvkm_gsp_client *client;
+				struct nvkm_gsp_object *parent;
+				u32 handle;
+			} object;
+
+			struct nvkm_gsp *gsp;
+
+			struct list_head events;
+		} client;
+
+		struct nvkm_gsp_device {
+			struct nvkm_gsp_object object;
+			struct nvkm_gsp_object subdevice;
+		} device;
+	} internal;
+
+	struct {
+		enum nvkm_subdev_type type;
+		int inst;
+		u32 stall;
+		u32 nonstall;
+	} intr[32];
+	int intr_nr;
+
+	struct {
+		u64 rm_bar1_pdb;
+		u64 rm_bar2_pdb;
+	} bar;
+
+	struct {
+		u8 gpcs;
+		u8 tpcs;
+	} gr;
+
+	struct nvkm_rm *rm;
+
+	struct {
+		struct mutex mutex;
+		struct idr idr;
+	} client_id;
+
+	/* A linked list of registry items. The registry RPC will be built from it. */
+	struct list_head registry_list;
+
+	/* The size of the registry RPC */
+	size_t registry_rpc_size;
+
+#ifdef CONFIG_DEBUG_FS
+	/*
+	 * Logging buffers in debugfs. The wrapper objects need to remain
+	 * in memory until the dentry is deleted.
+	 */
+	struct {
+		struct dentry *parent;
+		struct dentry *init;
+		struct dentry *rm;
+		struct dentry *intr;
+		struct dentry *pmu;
+	} debugfs;
+	struct debugfs_blob_wrapper blob_init;
+	struct debugfs_blob_wrapper blob_intr;
+	struct debugfs_blob_wrapper blob_rm;
+	struct debugfs_blob_wrapper blob_pmu;
+#endif
+};
+
+static inline bool
+nvkm_gsp_rm(struct nvkm_gsp *gsp)
+{
+	return gsp && (gsp->fws.rm || gsp->fw.img);
+}
+
+#include <rm/rm.h>
+
+static inline void *
+nvkm_gsp_rpc_get(struct nvkm_gsp *gsp, u32 fn, u32 argc)
+{
+	return gsp->rm->api->rpc->get(gsp, fn, argc);
+}
+
+static inline void *
+nvkm_gsp_rpc_push(struct nvkm_gsp *gsp, void *argv,
+		  enum nvkm_gsp_rpc_reply_policy policy, u32 repc)
+{
+	return gsp->rm->api->rpc->push(gsp, argv, policy, 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, NVKM_GSP_RPC_REPLY_RECV, argc);
+}
+
+static inline int
+nvkm_gsp_rpc_wr(struct nvkm_gsp *gsp, void *argv,
+		enum nvkm_gsp_rpc_reply_policy policy)
+{
+	void *repv = nvkm_gsp_rpc_push(gsp, argv, policy, 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->api->rpc->done(gsp, repv);
+}
+
+static inline void *
+nvkm_gsp_rm_ctrl_get(struct nvkm_gsp_object *object, u32 cmd, u32 argc)
+{
+	return object->client->gsp->rm->api->ctrl->get(object, cmd, argc);
+}
+
+static inline int
+nvkm_gsp_rm_ctrl_push(struct nvkm_gsp_object *object, void *argv, u32 repc)
+{
+	return object->client->gsp->rm->api->ctrl->push(object, argv, repc);
+}
+
+static inline void *
+nvkm_gsp_rm_ctrl_rd(struct nvkm_gsp_object *object, u32 cmd, u32 repc)
+{
+	void *argv = nvkm_gsp_rm_ctrl_get(object, cmd, repc);
+	int ret;
+
+	if (IS_ERR(argv))
+		return argv;
+
+	ret = nvkm_gsp_rm_ctrl_push(object, &argv, repc);
+	if (ret)
+		return ERR_PTR(ret);
+	return argv;
+}
+
+static inline int
+nvkm_gsp_rm_ctrl_wr(struct nvkm_gsp_object *object, void *argv)
+{
+	int ret = nvkm_gsp_rm_ctrl_push(object, &argv, 0);
+
+	if (ret)
+		return ret;
+	return 0;
+}
+
+static inline void
+nvkm_gsp_rm_ctrl_done(struct nvkm_gsp_object *object, void *repv)
+{
+	object->client->gsp->rm->api->ctrl->done(object, repv);
+}
+
+static inline void *
+nvkm_gsp_rm_alloc_get(struct nvkm_gsp_object *parent, u32 handle, u32 oclass, u32 argc,
+		      struct nvkm_gsp_object *object)
+{
+	struct nvkm_gsp_client *client = parent->client;
+	struct nvkm_gsp *gsp = client->gsp;
+	void *argv;
+
+	object->client = parent->client;
+	object->parent = parent;
+	object->handle = handle;
+
+	argv = gsp->rm->api->alloc->get(object, oclass, argc);
+	if (IS_ERR_OR_NULL(argv)) {
+		object->client = NULL;
+		return argv;
+	}
+
+	return argv;
+}
+
+static inline void *
+nvkm_gsp_rm_alloc_push(struct nvkm_gsp_object *object, void *argv)
+{
+	void *repv = object->client->gsp->rm->api->alloc->push(object, argv);
+
+	if (IS_ERR(repv))
+		object->client = NULL;
+
+	return repv;
+}
+
+static inline int
+nvkm_gsp_rm_alloc_wr(struct nvkm_gsp_object *object, void *argv)
+{
+	void *repv = nvkm_gsp_rm_alloc_push(object, argv);
+
+	if (IS_ERR(repv))
+		return PTR_ERR(repv);
+
+	return 0;
+}
+
+static inline void
+nvkm_gsp_rm_alloc_done(struct nvkm_gsp_object *object, void *repv)
+{
+	object->client->gsp->rm->api->alloc->done(object, repv);
+}
+
+static inline int
+nvkm_gsp_rm_alloc(struct nvkm_gsp_object *parent, u32 handle, u32 oclass, u32 argc,
+		  struct nvkm_gsp_object *object)
+{
+	void *argv = nvkm_gsp_rm_alloc_get(parent, handle, oclass, argc, object);
+
+	if (IS_ERR_OR_NULL(argv))
+		return argv ? PTR_ERR(argv) : -EIO;
+
+	return nvkm_gsp_rm_alloc_wr(object, argv);
+}
+
+static inline int
+nvkm_gsp_rm_free(struct nvkm_gsp_object *object)
+{
+	if (object->client) {
+		int ret = object->client->gsp->rm->api->alloc->free(object);
+		object->client = NULL;
+		return ret;
+	}
+
+	return 0;
+}
+
+int nvkm_gsp_client_ctor(struct nvkm_gsp *, struct nvkm_gsp_client *);
+void nvkm_gsp_client_dtor(struct nvkm_gsp_client *);
+
+static inline int
+nvkm_gsp_device_ctor(struct nvkm_gsp_client *client, struct nvkm_gsp_device *device)
+{
+	return client->gsp->rm->api->device->ctor(client, device);
+}
+
+static inline void
+nvkm_gsp_device_dtor(struct nvkm_gsp_device *device)
+{
+	if (device->object.client)
+		device->object.client->gsp->rm->api->device->dtor(device);
+}
+
+static inline int
+nvkm_gsp_client_device_ctor(struct nvkm_gsp *gsp,
+			    struct nvkm_gsp_client *client, struct nvkm_gsp_device *device)
+{
+	int ret = nvkm_gsp_client_ctor(gsp, client);
+
+	if (ret == 0) {
+		ret = nvkm_gsp_device_ctor(client, device);
+		if (ret)
+			nvkm_gsp_client_dtor(client);
+	}
+
+	return ret;
+}
+
+struct nvkm_gsp_event {
+	struct nvkm_gsp_device *device;
+	u32 id;
+	nvkm_gsp_event_func func;
+
+	struct nvkm_gsp_object object;
+
+	struct list_head head;
+};
+
+static inline int
+nvkm_gsp_device_event_ctor(struct nvkm_gsp_device *device, u32 handle, u32 id,
+			   nvkm_gsp_event_func func, struct nvkm_gsp_event *event)
+{
+	struct nvkm_rm *rm = device->object.client->gsp->rm;
+
+	return rm->api->device->event.ctor(device, handle, id, func, event);
+}
+
+static inline void
+nvkm_gsp_event_dtor(struct nvkm_gsp_event *event)
+{
+	struct nvkm_gsp_device *device = event->device;
+
+	if (device)
+		device->object.client->gsp->rm->api->device->event.dtor(event);
+}
+
+int nvkm_gsp_intr_stall(struct nvkm_gsp *, enum nvkm_subdev_type, int);
+int nvkm_gsp_intr_nonstall(struct nvkm_gsp *, enum nvkm_subdev_type, int);
+
+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 gh100_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 **);
+int gb100_gsp_new(struct nvkm_device *, enum nvkm_subdev_type, int, struct nvkm_gsp **);
+int gb202_gsp_new(struct nvkm_device *, enum nvkm_subdev_type, int, struct nvkm_gsp **);
+#endif