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Merge tag 'nova-next-v6.16-2025-05-20' of https://gitlab.freedesktop.org/drm/nova into drm-next

Browse Source 
Nova changes for v6.16

auxiliary:
  - bus abstractions
  - implementation for driver registration
  - add sample driver

drm:
  - implement __drm_dev_alloc()
  - DRM core infrastructure Rust abstractions
    - device, driver and registration
    - DRM IOCTL
    - DRM File
    - GEM object
  - IntoGEMObject rework
    - generically implement AlwaysRefCounted through IntoGEMObject
    - refactor unsound from_gem_obj() into as_ref()
    - refactor into_gem_obj() into as_raw()

driver-core:
  - merge topic/device-context-2025-04-17 from driver-core tree
  - implement Devres::access()
    - fix: doctest build under `!CONFIG_PCI`
  - accessor for Device::parent()
    - fix: conditionally expect `dead_code` for `parent()`
  - impl TryFrom<&Device> bus devices (PCI, platform)

nova-core:
  - remove completed Vec extentions from task list
  - register auxiliary device for nova-drm
  - derive useful traits for Chipset
  - add missing GA100 chipset
  - take &Device<Bound> in Gpu::new()
  - infrastructure to generate register definitions
  - fix register layout of NV_PMC_BOOT_0
  - move Firmware into own (Rust) module
  - fix: select AUXILIARY_BUS

nova-drm:
  - initial driver skeleton (depends on drm and auxiliary bus
    abstractions)
  - fix: select AUXILIARY_BUS

Rust (dependencies):
  - implement Opaque::zeroed()
  - implement Revocable::try_access_with()
  - implement Revocable::access()

From: Danilo Krummrich <dakr@kernel.org>
Link: https://lore.kernel.org/r/aCxAf3RqQAXLDhAj@cassiopeiae
This commit is contained in:
Dave Airlie
2025-05-21 05:49:31 +10:00
parent 7c1a9408ce 276c53c66e
commit c4f8ac095f
47 changed files with 2757 additions and 192 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/uapi/drm/nova_drm.h
+101
View File
@@ -0,0 +1,101 @@
/* SPDX-License-Identifier: MIT */
#ifndef __NOVA_DRM_H__
#define __NOVA_DRM_H__
#include "drm.h"
/* DISCLAIMER: Do not use, this is not a stable uAPI.
*
* This uAPI serves only testing purposes as long as this driver is still in
* development. It is required to implement and test infrastructure which is
* upstreamed in the context of this driver. See also [1].
*
* [1] https://lore.kernel.org/dri-devel/Zfsj0_tb-0-tNrJy@cassiopeiae/T/#u
*/
#if defined(__cplusplus)
extern "C" {
#endif
/*
* NOVA_GETPARAM_VRAM_BAR_SIZE
*
* Query the VRAM BAR size in bytes.
*/
#define NOVA_GETPARAM_VRAM_BAR_SIZE 0x1
/**
* struct drm_nova_getparam - query GPU and driver metadata
*/
struct drm_nova_getparam {
/**
* @param: The identifier of the parameter to query.
*/
__u64 param;
/**
* @value: The value for the specified parameter.
*/
__u64 value;
};
/**
* struct drm_nova_gem_create - create a new DRM GEM object
*/
struct drm_nova_gem_create {
/**
* @handle: The handle of the new DRM GEM object.
*/
__u32 handle;
/**
* @pad: 32 bit padding, should be 0.
*/
__u32 pad;
/**
* @size: The size of the new DRM GEM object.
*/
__u64 size;
};
/**
* struct drm_nova_gem_info - query DRM GEM object metadata
*/
struct drm_nova_gem_info {
/**
* @handle: The handle of the DRM GEM object to query.
*/
__u32 handle;
/**
* @pad: 32 bit padding, should be 0.
*/
__u32 pad;
/**
* @size: The size of the DRM GEM obejct.
*/
__u64 size;
};
#define DRM_NOVA_GETPARAM 0x00
#define DRM_NOVA_GEM_CREATE 0x01
#define DRM_NOVA_GEM_INFO 0x02
/* Note: this is an enum so that it can be resolved by Rust bindgen. */
enum {
DRM_IOCTL_NOVA_GETPARAM = DRM_IOWR(DRM_COMMAND_BASE + DRM_NOVA_GETPARAM,
struct drm_nova_getparam),
DRM_IOCTL_NOVA_GEM_CREATE = DRM_IOWR(DRM_COMMAND_BASE + DRM_NOVA_GEM_CREATE,
struct drm_nova_gem_create),
DRM_IOCTL_NOVA_GEM_INFO = DRM_IOWR(DRM_COMMAND_BASE + DRM_NOVA_GEM_INFO,
struct drm_nova_gem_info),
};
#if defined(__cplusplus)
}
#endif
#endif /* __NOVA_DRM_H__ */