linux-toradex.git/drivers/gpu/drm/drm_context.c, branch v3.14.3

drm: Kill ctx_count from struct drm_device

2013-10-09T05:55:32+00:00

The only user of ctx_count is the via driver, and we can replace that
use with list_is_singular().

Signed-off-by: Ville Syrjälä 
Reviewed-by: Daniel Vetter 
Reviewed-by: Alex Deucher 
Signed-off-by: Dave Airlie

Revert "drm: mark context support as a legacy subsystem"

2013-09-19T22:32:59+00:00

This reverts commit 7c510133d93dd6f15ca040733ba7b2891ed61fd1.

Well looks like not enough digging was done, libdrm_nouveau before 2.4.33
used contexts,

292da616fe1f936ca78a3fa8e1b1b19883e343b6 nouveau: pull in major libdrm rewrite

got rid of them,

Reported-by: Paul Zimmerman 
Reported-by: Mikael Pettersson 
Signed-off-by: Dave Airlie

drm: mark context support as a legacy subsystem

2013-08-19T00:04:48+00:00

So after a lot of digging around in git histories it looks like this
has only ever be used by dri1 render clients. Hence we can fully
disable the entire thing for modesetting drivers and so greatly reduce
the attack surface for potential exploits (or at least tools like
trinity ...).

Also add the drm_legacy prefix for functions which are called from
common code. To further reduce the impact on common code also extract
all the ctx release handling into a function (instead of only
releasing individual handles) and make ctxbitmap_cleanup return void -
it can never fail.

Reviewed-by: Eric Anholt 
Signed-off-by: Daniel Vetter 
Signed-off-by: Dave Airlie

drm: remove dev->last_switch

2013-07-23T09:20:20+00:00

Only ever assigned in the context code for real, with no readers
anywhere. Remove it.

Signed-off-by: Daniel Vetter 
Signed-off-by: Dave Airlie

drm: kill dev->context_wait

2013-07-23T09:20:19+00:00

No one ever waits on this waitqueue, so the wake_up call is wasted.
Remove it all.

Signed-off-by: Daniel Vetter 
Signed-off-by: Dave Airlie

drm: remove drm_modctx ioctl and use drm_noop instead

2013-07-23T09:20:18+00:00

It doesn't do anything, so kill the code.

Signed-off-by: Daniel Vetter 
Signed-off-by: Dave Airlie

drm: convert to idr_alloc()

2013-02-28T03:10:15+00:00

Convert to the much saner new idr interface.

* drm_ctxbitmap_next() error handling in drm_addctx() seems broken.
  drm_ctxbitmap_next() return -errno on failure not -1.

[artem.savkov@gmail.com: missing idr_preload_end in drm_gem_flink_ioctl]
[jslaby@suse.cz: fix drm_gem_flink_ioctl() return value]
Signed-off-by: Tejun Heo 
Acked-by: David Airlie 
Signed-off-by: Artem Savkov 
Signed-off-by: Jiri Slaby 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

drm: don't use idr_remove_all()

2013-02-28T03:10:13+00:00

idr_destroy() can destroy idr by itself and idr_remove_all() is being
deprecated.  Drop its usage.

* drm_ctxbitmap_cleanup() was calling idr_remove_all() but forgetting
  idr_destroy() thus leaking all buffered free idr_layers.  Replace it
  with idr_destroy().

Signed-off-by: Tejun Heo 
Acked-by: David Airlie 
Cc: Inki Dae 
Cc: Joonyoung Shim 
Cc: Seung-Woo Kim 
Cc: Kyungmin Park 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

UAPI: (Scripted) Convert #include "..." to #include in drivers/gpu/

2012-10-02T17:01:07+00:00

Convert #include "..." to #include  in drivers/gpu/.

Signed-off-by: David Howells 
Acked-by: Dave Airlie 
Acked-by: Arnd Bergmann 
Acked-by: Thomas Gleixner 
Acked-by: Paul E. McKenney 
Acked-by: Dave Jones

drm: Unify and fix idr error handling

2012-04-24T08:50:20+00:00

The error handling code w.r.t. idr usage looks inconsistent.

In the case of drm_mode_object_get() and drm_ctxbitmap_next() the error
handling is also incomplete.

Unify the code to follow the same pattern always.

Signed-off-by: Ville Syrjälä 
Signed-off-by: Dave Airlie