[RFC PATCH 0/6] do not store GPU address in TTM

[Nirmoy Das]

With this patch series I am trying to remove GPU address dependency in
TTM and moving GPU address calculation to individual drm drivers.
This is required[1] to continue the work started by Brian Welty to create
struct drm_mem_region which can be leverage by DRM cgroup controller to manage memory
limits.


I have only manage to test amdgpu driver as I only have GPU for that.
I might be doing something really stupid while calculeting gpu offset for
some of the drivers so please be patient and let me know how can I improve
that.

[1] https://www.mail-archive.com/dri-devel@lists.freedesktop.org/msg272238.html

Nirmoy Das (6):
  drm/amdgpu: move ttm bo->offset to amdgpu_bo
  drm/radeon: don't use ttm bo->offset
  drm/vmwgfx: don't use ttm bo->offset
  drm/nouveau: don't use ttm bo->offset
  drm/qxl: don't use ttm bo->offset
  drm/ttm: do not keep GPU dependent addresses

 drivers/gpu/drm/amd/amdgpu/amdgpu_object.c  | 22 ++++++++++++++--
 drivers/gpu/drm/amd/amdgpu/amdgpu_object.h  |  1 +
 drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c     | 29 ++++++++++++++++-----
 drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h     |  1 +
 drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c |  4 +--
 drivers/gpu/drm/nouveau/dispnv04/crtc.c     |  6 ++---
 drivers/gpu/drm/nouveau/dispnv04/disp.c     |  2 +-
 drivers/gpu/drm/nouveau/dispnv04/overlay.c  |  6 ++---
 drivers/gpu/drm/nouveau/dispnv50/base507c.c |  2 +-
 drivers/gpu/drm/nouveau/dispnv50/core507d.c |  2 +-
 drivers/gpu/drm/nouveau/dispnv50/ovly507e.c |  2 +-
 drivers/gpu/drm/nouveau/dispnv50/wndw.c     |  2 +-
 drivers/gpu/drm/nouveau/dispnv50/wndwc37e.c |  2 +-
 drivers/gpu/drm/nouveau/nouveau_abi16.c     |  8 +++---
 drivers/gpu/drm/nouveau/nouveau_bo.c        |  1 +
 drivers/gpu/drm/nouveau/nouveau_bo.h        |  3 +++
 drivers/gpu/drm/nouveau/nouveau_chan.c      |  2 +-
 drivers/gpu/drm/nouveau/nouveau_fbcon.c     |  2 +-
 drivers/gpu/drm/nouveau/nouveau_gem.c       | 10 +++----
 drivers/gpu/drm/qxl/qxl_drv.h               |  6 ++---
 drivers/gpu/drm/qxl/qxl_kms.c               |  3 +++
 drivers/gpu/drm/qxl/qxl_object.h            |  5 ----
 drivers/gpu/drm/qxl/qxl_ttm.c               |  9 -------
 drivers/gpu/drm/radeon/radeon.h             |  1 +
 drivers/gpu/drm/radeon/radeon_object.h      | 16 +++++++++++-
 drivers/gpu/drm/radeon/radeon_ttm.c         |  4 +--
 drivers/gpu/drm/ttm/ttm_bo.c                |  7 -----
 drivers/gpu/drm/vmwgfx/vmwgfx_bo.c          |  4 +--
 drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c     |  2 +-
 drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c        |  2 +-
 drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c  |  2 --
 include/drm/ttm/ttm_bo_api.h                |  2 --
 include/drm/ttm/ttm_bo_driver.h             |  1 -
 33 files changed, 99 insertions(+), 72 deletions(-)

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2.25.0