[PATCH 0/2] RFC: allow driver to plugin alternative to drm_mm

[Thomas Hellstrom]

acked-by: Thomas Hellström <thellstrom at vmware.com>


On 08/05/2010 03:09 PM, Ben Skeggs wrote:
> From: Ben Skeggs<bskeggs at redhat.com>
>
> In order to properly deal with GPU reordering of blocks in physical VRAM,
> Nouveau needs to be able to have better control over VRAM allocations.
>
> Currently nouveau is extremely wasteful and forces massive amounts of
> padding/alignment to avoid buffer corruption issues.
>
> radeon/vmwgfx haven't been tested, but nouveau works as well as it did
> previously.
>
> Ben Skeggs (2):
>    drm/ttm: introduce utility function to free an allocated memory node
>    drm/ttm: restructure to allow driver to plug in alternate memory
>      manager
>
>   drivers/gpu/drm/nouveau/nouveau_bo.c       |   26 ++---
>   drivers/gpu/drm/nouveau/nouveau_channel.c  |    6 +-
>   drivers/gpu/drm/nouveau/nouveau_notifier.c |    2 +-
>   drivers/gpu/drm/nouveau/nouveau_sgdma.c    |    4 +-
>   drivers/gpu/drm/nouveau/nv50_crtc.c        |    3 +-
>   drivers/gpu/drm/nouveau/nv50_display.c     |    2 +-
>   drivers/gpu/drm/nouveau/nv50_instmem.c     |    2 +-
>   drivers/gpu/drm/radeon/radeon_object.c     |    6 +-
>   drivers/gpu/drm/radeon/radeon_ttm.c        |   34 ++-----
>   drivers/gpu/drm/ttm/Makefile               |    3 +-
>   drivers/gpu/drm/ttm/ttm_agp_backend.c      |    3 +-
>   drivers/gpu/drm/ttm/ttm_bo.c               |  104 +++++---------------
>   drivers/gpu/drm/ttm/ttm_bo_manager.c       |  148 ++++++++++++++++++++++++++++
>   drivers/gpu/drm/ttm/ttm_bo_util.c          |   12 +--
>   drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c     |    3 +-
>   include/drm/ttm/ttm_bo_api.h               |    3 +-
>   include/drm/ttm/ttm_bo_driver.h            |   25 +++++-
>   17 files changed, 238 insertions(+), 148 deletions(-)
>   create mode 100644 drivers/gpu/drm/ttm/ttm_bo_manager.c
>
>