drm/nouveau: add support for GH100

This commit enables basic support for Hopper GPUs, and is intended
primarily as a base supporting Blackwell GPUs, which reuse most of
the code added here.

Advanced features such as Confidential Compute are not supported.

Beyond a few miscellaneous register moves and HW class ID plumbing,
the bulk of the changes implemented here are to support the GSP-RM
boot sequence used on Hopper/Blackwell GPUs, as well as a new page
table layout.

There should be no changes here that impact prior GPUs.

Signed-off-by: Ben Skeggs <bskeggs@nvidia.com>
Co-developed-by: Timur Tabi <ttabi@nvidia.com>
Signed-off-by: Timur Tabi <ttabi@nvidia.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Timur Tabi <ttabi@nvidia.com>
Tested-by: Timur Tabi <ttabi@nvidia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/fsp.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/fsp.h
new file mode 100644
index 000000000000..2a8c1d5a65f9
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/fsp.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: MIT
+ *
+ * Copyright (c) 2025, NVIDIA CORPORATION. All rights reserved.
+ */
+#ifndef __NVKM_FSP_H__
+#define __NVKM_FSP_H__
+#include <core/subdev.h>
+#include <core/falcon.h>
+
+struct nvkm_fsp {
+	const struct nvkm_fsp_func *func;
+	struct nvkm_subdev subdev;
+
+	struct nvkm_falcon falcon;
+};
+
+bool nvkm_fsp_verify_gsp_fmc(struct nvkm_fsp *, u32 hash_size, u32 pkey_size, u32 sig_size);
+int nvkm_fsp_boot_gsp_fmc(struct nvkm_fsp *, u64 args_addr, u32 rsvd_size, bool resume,
+			  u64 img_addr, const u8 *hash, const u8 *pkey, const u8 *sig);
+
+int gh100_fsp_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_fsp **);
+#endif