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  1. 02 11月, 2015 1 次提交
  3. 16 10月, 2015 1 次提交
  5. 30 9月, 2015 1 次提交
  7. 14 9月, 2015 1 次提交
    • T
      drm/vmwgfx: Map the fifo as cached · 2e586a7e
      由 Thomas Hellstrom 提交于 
      On the guest kernel side, previously the FIFO has been mapped write-
combined. This has worked since VMs up to now has not honored the mapping
type and mapped the FIFO cached anyway. Since the FIFO is accessed cached
by the CPU on the virtual device side, this leads to inconsistent
mappings once the guest starts to honor the mapping types.

So ask for cached mappings when we map the FIFO. We do this by
using ioremap_cache() instead of ioremap_wc(), and remove the MTRR setup.
On the TTM side, MOBs, GMRs and VRAM buffers are already requesting
cached mappings for kernel- and user-space.

Cc: <stable@vger.kernel.org>
Signed-off-by: NThomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: NSinclair Yeh <syeh@vmware.com>
      2e586a7e
  9. 01 9月, 2015 1 次提交
  11. 21 8月, 2015 1 次提交
  13. 13 8月, 2015 5 次提交
  15. 06 8月, 2015 1 次提交
  17. 05 8月, 2015 7 次提交
  19. 27 3月, 2015 1 次提交
  21. 12 3月, 2015 2 次提交
  23. 19 1月, 2015 1 次提交
    • T
      drm/vmwgfx: Replace the hw mutex with a hw spinlock · 496eb6fd
      由 Thomas Hellstrom 提交于 
      Fixes a case where we call vmw_fifo_idle() from within a wait function with
task state !TASK_RUNNING, which is illegal.

In addition, make the locking fine-grained, so that it is performed once
for every read- and write operation. This is of course more costly, but we
don't perform much register access in the timing critical paths anyway. Instead
we have the extra benefit of being sure that we don't forget the hw lock around
register accesses. I think currently the kms code was quite buggy w r t this.

This fixes Red Hat Bugzilla Bug 1180796

Cc: stable@vger.kernel.org
Signed-off-by: NThomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: NJakob Bornecrantz <jakob@vmware.com>
      496eb6fd
  25. 03 12月, 2014 1 次提交
  27. 21 11月, 2014 1 次提交
  29. 31 10月, 2014 1 次提交
  31. 10 9月, 2014 1 次提交
  33. 08 8月, 2014 1 次提交
    • D
      Revert "drm: drop redundant drm_file->is_master" · 7963e9db
      由 Dave Airlie 提交于 
      This reverts commit 48ba8137.

Thanks to Chris:
"drm_file->is_master is not synomous with having drm_file->master ==
drm_file->minor->master. This is because drm_file->master is the same
for all drm_files of the same generation and so when there is a master,
every drm_file believes itself to be the master. Confusion ensues and
things go pear shaped when one file is closed and there is no master
anymore."

Conflicts:
	drivers/gpu/drm/drm_drv.c
	drivers/gpu/drm/drm_stub.c
      7963e9db
  35. 05 8月, 2014 1 次提交
    • D
      drm: drop redundant drm_file->is_master · 48ba8137
      由 David Herrmann 提交于 
      The drm_file->is_master field is redundant as it's equivalent to:
    drm_file->master && drm_file->master == drm_file->minor->master

1) "=>"
  Whenever we set drm_file->is_master, we also set:
      drm_file->minor->master = drm_file->master;

  Whenever we clear drm_file->is_master, we also call:
      drm_master_put(&drm_file->minor->master);
  which implicitly clears it to NULL.

2) "<="
  minor->master cannot be set if it is non-NULL. Therefore, it stays as
  is unless a file drops it.

  If minor->master is NULL, it is only set by places that also adjust
  drm_file->is_master.

Therefore, we can safely drop is_master and replace it by an inline helper
that matches:
    drm_file->master && drm_file->master == drm_file->minor->master
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>
Reviewed-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: NDavid Herrmann <dh.herrmann@gmail.com>
      48ba8137
  37. 22 7月, 2014 1 次提交
  39. 04 7月, 2014 1 次提交
  41. 10 6月, 2014 1 次提交
  43. 23 4月, 2014 1 次提交
  45. 03 4月, 2014 1 次提交
  47. 28 3月, 2014 4 次提交
  49. 16 3月, 2014 2 次提交
    • D
      drm: init TTM dev_mapping in ttm_bo_device_init() · 44d847b7
      由 David Herrmann 提交于 
      With dev->anon_inode we have a global address_space ready for operation
right from the beginning. Therefore, there is no need to do a delayed
setup with TTM. Instead, set dev_mapping during initialization in
ttm_bo_device_init() and remove any "if (dev_mapping)" conditions.

Cc: Dave Airlie <airlied@redhat.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Cc: Alex Deucher <alexdeucher@gmail.com>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: NDavid Herrmann <dh.herrmann@gmail.com>
      44d847b7
    • D
      drm: use anon-inode instead of relying on cdevs · 6796cb16
      由 David Herrmann 提交于 
      DRM drivers share a common address_space across all character-devices of a
single DRM device. This allows simple buffer eviction and mapping-control.
However, DRM core currently waits for the first ->open() on any char-dev
to mark the underlying inode as backing inode of the device. This delayed
initialization causes ugly conditions all over the place:
  if (dev->dev_mapping)
    do_sth();

To avoid delayed initialization and to stop reusing the inode of the
char-dev, we allocate an anonymous inode for each DRM device and reset
filp->f_mapping to it on ->open().
Signed-off-by: NDavid Herrmann <dh.herrmann@gmail.com>
      6796cb16