[PATCH v4 0/3] drm/helpers: Make the suballocation manager drm generic

[Thomas Hellström]

Daniel, Dave

Ack to merge this to drm through drm-misc-next?

/Thomas


On 2/24/23 10:51, Thomas Hellström wrote:
> This series (or at least the suballocator helper) is a prerequisite
> for the new Xe driver.
>
> There was an unresolved issue when the series was last up for review,
> and that was the per allocation aligment. Last message was from
> Maarten Lankhorst arguing that the larger per-driver alignment used
> would only incur a small memory cost. This new variant resolves that.
>
> The generic suballocator has been tested with the Xe driver, and a
> kunit test is under development.
> The amd- and radeon adaptations are only compile-tested.
>
> v3:
> - Remove stale author information (Christian König)
> - Update Radeon Kconfig (Thomas Hellström)
>
> v4:
> - Avoid 64-bit integer divisions (kernel test robot <lkp at intel.com>)
> - Use size_t rather than u64 for the managed range. (Thomas)
>
>
> Maarten Lankhorst (3):
>    drm/suballoc: Extract amdgpu_sa.c as generic suballocation helper
>    drm/amd: Convert amdgpu to use suballocation helper.
>    drm/radeon: Use the drm suballocation manager implementation.
>
>   drivers/gpu/drm/Kconfig                    |   4 +
>   drivers/gpu/drm/Makefile                   |   3 +
>   drivers/gpu/drm/amd/amdgpu/Kconfig         |   1 +
>   drivers/gpu/drm/amd/amdgpu/amdgpu.h        |  26 +-
>   drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c     |   5 +-
>   drivers/gpu/drm/amd/amdgpu/amdgpu_object.h |  23 +-
>   drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h   |   3 +-
>   drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c     | 324 +--------------
>   drivers/gpu/drm/drm_suballoc.c             | 457 +++++++++++++++++++++
>   drivers/gpu/drm/radeon/Kconfig             |   1 +
>   drivers/gpu/drm/radeon/radeon.h            |  55 +--
>   drivers/gpu/drm/radeon/radeon_ib.c         |  12 +-
>   drivers/gpu/drm/radeon/radeon_object.h     |  25 +-
>   drivers/gpu/drm/radeon/radeon_sa.c         | 316 ++------------
>   drivers/gpu/drm/radeon/radeon_semaphore.c  |   4 +-
>   include/drm/drm_suballoc.h                 | 108 +++++
>   16 files changed, 674 insertions(+), 693 deletions(-)
>   create mode 100644 drivers/gpu/drm/drm_suballoc.c
>   create mode 100644 include/drm/drm_suballoc.h
>