linux-toradex.git/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c, branch v3.10.67

drm/vmwgfx: Make sure user-space can't DMA across buffer object boundaries v2

2014-05-31T04:52:14+00:00

commit cbd75e97a525e3819c02dc18bc2d67aa544c9e45 upstream.

We already check that the buffer object we're accessing is registered with
the file. Now also make sure that we can't DMA across buffer object boundaries.

v2: Code commenting update.

Signed-off-by: Thomas Hellstrom 
Reviewed-by: Jakob Bornecrantz 
Signed-off-by: Greg Kroah-Hartman

drm/ttm: remove no_wait_reserve, v3

2012-12-10T10:21:30+00:00

All items on the lru list are always reservable, so this is a stupid
thing to keep. Not only that, it is used in a way which would
guarantee deadlocks if it were ever to be set to block on reserve.

This is a lot of churn, but mostly because of the removal of the
argument which can be nested arbitrarily deeply in many places.

No change of code in this patch except removal of the no_wait_reserve
argument, the previous patch removed the use of no_wait_reserve.

v2:
 - Warn if -EBUSY is returned on reservation, all objects on the list
   should be reservable. Adjusted patch slightly due to conflicts.
v3:
 - Focus on no_wait_reserve removal only.

Signed-off-by: Maarten Lankhorst 
Reviewed-by: Thomas Hellstrom 
Signed-off-by: Dave Airlie

drm/vmwgfx: Refactor resource management

2012-11-20T21:47:06+00:00

Refactor resource management to make it easy to hook up resources
that are backed up by buffers. In particular, resources and their
backing buffers can be evicted and rebound, if supported by the device.
To avoid query deadlocks, the query code is also modified somewhat.

Signed-off-by: Thomas Hellstrom 
Reviewed-by: Brian Paul 
Reviewed-by: Dmitry Torokhov 
Signed-off-by: Dave Airlie

drm/vmwgfx: remove use of fence_obj_args

2012-11-20T06:09:35+00:00

It's always hardcoded to the same value.

Signed-off-by: Maarten Lankhorst 
Reviewed-By: Thomas Hellstrom 
Signed-off-by: Dave Airlie

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

vmwgfx: Make it possible to get fence from execbuf

2012-02-13T12:01:33+00:00

Signed-off-by: Jakob Bornecrantz 
Reviewed-by: Thomas Hellstrom 
Signed-off-by: Dave Airlie

Revert "drm/ttm: add a way to bo_wait for either the last read or last write"

2011-10-27T16:28:37+00:00

This reverts commit dfadbbdb57b3f2bb33e14f129a43047c6f0caefa.

Further upstream discussion between Marek and Thomas decided this wasn't
fully baked and needed further work, so revert it before it hits mainline.

Signed-off-by: Dave Airlie

vmwgfx: information leak in vmw_execbuf_copy_fence_user()

2011-10-18T09:42:01+00:00

If ret is non-zero then we don't initialize the struct which leaks
stack information to user space.

Signed-off-by: Dan Carpenter 
Reviewed-by: Thomas Hellstrom 
Reviewed-by: Vasiliy Kulikov 
Signed-off-by: Dave Airlie

vmwgfx: Add fence events

2011-10-10T14:46:55+00:00

Add a way to send DRM events down the gpu fifo by attaching them to
fence objects. This may be useful for Xserver swapbuffer throttling and
page-flip done notifications.

Bump version to 2.2 to signal the availability of the FENCE_EVENT ioctl.

Signed-off-by: Thomas Hellstrom 
Reviewed-by: Jakob Bornecrantz 
Signed-off-by: Dave Airlie

vmwgfx: Break out and comment vmw_execbuf_copy_fence_user

2011-10-10T14:46:28+00:00

This function will be used also by the upcoming fence event code,
so break it out and add a comment about the functionality.

Signed-off-by: Thomas Hellstrom 
Reviewed-by: Jakob Bornecrantz 
Signed-off-by: Dave Airlie