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

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acked-by: Thomas Hellström <thellstrom@xxxxxxxxxx>


On 08/05/2010 03:09 PM, Ben Skeggs wrote:
From: Ben Skeggs<bskeggs@xxxxxxxxxx>

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


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