linux-stable.git/drivers/gpu/drm/i810, branch linux-4.9.y

drm/i810: Prevent underflow in ioctl

2019-12-21T09:41:37+00:00

commit 4f69851fbaa26b155330be35ce8ac393e93e7442 upstream.

The "used" variables here come from the user in the ioctl and it can be
negative.  It could result in an out of bounds write.

Signed-off-by: Dan Carpenter 
Reviewed-by: Chris Wilson 
Signed-off-by: Chris Wilson 
Link: https://patchwork.freedesktop.org/patch/msgid/20191004102251.GC823@mwanda
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman

drm: Mark up legacy/dri1 drivers with DRM_LEGACY

2016-08-08T08:05:22+00:00

It's super confusing that new drivers need to be marked with
DRIVER_MODESET when really it means DRIVER_MODERN. Much better to
invert the meaning and rename it to something that's suitably
off-putting.

Since there's over 100 places using DRIVER_MODESET we need to roll out
this change without a flag day.

v2: Update docs.

Reviewed-by: Frank Binns 
Reviewed-by: David Herrmann 
Signed-off-by: Daniel Vetter 
Link: http://patchwork.freedesktop.org/patch/msgid/1470251470-30830-1-git-send-email-daniel.vetter@ffwll.ch

drm: move drm_mmap to

2014-09-24T01:43:07+00:00

Now that we've removed the copypasted users in gem/ttm we can
relegate the legacy buffer mapping support to where it belongs.
Also give it the proper drm_legacy_ prefix.

While at it statify drm_mmap_locked, somehow I've missed that in my
previous header rework.

Signed-off-by: Daniel Vetter 
Reviewed-by: David Herrmann 
Acked-by: Alex Deucher 
Signed-off-by: Dave Airlie

drm: Move drm_memory.c map support declarations to

2014-09-12T13:28:12+00:00

And replace the drm_core_ prefix with drm_legacy_ since really, this
isn't core stuff.

Also drop drm_core_dropmap since it's unused.

v2: Fix up i810.ko fully which somehow slipped through.

Signed-off-by: Daniel Vetter

drm: Create drm legacy driver header

2014-09-12T09:08:55+00:00

And move a few legayc functions to start things over there.

It compiles ...

Inspired by a patch from Dave Airlie, but with a split between drm.ko
private legacy functions and stuff used by drivers.

Signed-off-by: Daniel Vetter

drm: move drm-lock API to drm_legacy.h

2014-09-10T07:43:34+00:00

Same as the other legacy APIs, most of this is internal, so prefix it with
drm_legacy_* and move into drm_legacy.h.

Signed-off-by: David Herrmann 
Reviewed-by: Thierry Reding 
Signed-off-by: Dave Airlie

drm: add driver->set_busid() callback

2014-09-10T07:43:04+00:00

One step closer to dropping all the drm_bus_* code:
Add a driver->set_busid() callback and make all drivers use the generic
helpers. Nouveau is the only driver that uses two different bus-types with
the same drm_driver. This is totally broken if both buses are available on
the same machine (unlikely, but lets be safe). Therefore, we create two
different drivers for each platform during module_init() and set the
set_busid() callback respectively.

Signed-off-by: David Herrmann 
Reviewed-by: Thierry Reding 
Signed-off-by: Dave Airlie

i810: use pci_zalloc_consistent

2014-08-08T22:57:28+00:00

Remove the now unnecessary memset too.

Signed-off-by: Joe Perches 
Cc: David Airlie 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

drm: Remove DRM_ARRAY_SIZE() for ARRAY_SIZE()

2014-06-09T23:36:17+00:00

I cannot see a need to provide a DRM_ version of ARRAY_SIZE(), only used
in a few places. I suspect its usage has been spread by copy & paste
rather than anything else.

Let's just remove it for plain ARRAY_SIZE().

Signed-off-by: Damien Lespiau 
Reviewed-by: Alex Deucher 
Signed-off-by: Dave Airlie

drm: kill DRIVER_REQUIRE_AGP

2013-12-18T01:17:53+00:00

Only the two intel drivers need this and they can easily check for
working agp support in their driver ->load callbacks.

This is the only reason why agp initialization could fail, so allows
us to rip out a bit of error handling code in the next patch.

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