Commit graph

323 commits

Author SHA1 Message Date
Gabriel Krisman Bertazi
c2ff663260 drm: qxl: Atomic phase 1: Use drm_plane_helpers for primary plane
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170227204328.18761-7-krisman@collabora.co.uk
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-02-28 17:26:13 +01:00
Gabriel Krisman Bertazi
1277eed5fe drm: qxl: Atomic phase 1: convert cursor to universal plane
In preparation for atomic conversion, let's use the transitional atomic
helpers drm_plane_helper_update/disable.

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170227204328.18761-6-krisman@collabora.co.uk
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-02-28 17:26:12 +01:00
Gabriel Krisman Bertazi
d3e7e42db2 drm: qxl: Expose creation of universal primary plane
Let's expose the primary plane initialization inside the qxl driver in
preparation for universal planes and atomic.

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170227204328.18761-5-krisman@collabora.co.uk
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-02-28 17:26:11 +01:00
Gabriel Krisman Bertazi
64ca824e71 drm: qxl: Don't initialize vblank support
qxl don't have support for hardware vblanks so we can't initialize it
here, otherwise we risk getting stuck in drm_wait_one_vblank.

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170227204328.18761-4-krisman@collabora.co.uk
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-02-28 17:26:10 +01:00
Gabriel Krisman Bertazi
715a11fabb drm: qxl: Consolidate bo reservation when pinning
Every attempt to pin/unpin objects in memory requires
qxl_bo_reserve/unreserve calls around the pinning operation to protect
the object from concurrent access, which causes that call sequence to be
reproduced every place where pinning is needed.  In some cases, that
sequence was not executed correctly, resulting in potential unprotected
pinning operations.

This commit encapsulates the reservation inside a new wrapper to make
sure it is always handled properly.  In cases where reservation must be
done beforehand, for some reason, one can use the unprotected version
__qxl_bo_pin/unpin.

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170227204328.18761-3-krisman@collabora.co.uk
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-02-28 17:26:08 +01:00
Gabriel Krisman Bertazi
aa5b62bac0 drm: qxl: Drop device flags attribute
There are no device specific flags that we need to keep track of here.
Let it vanish.

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170227204328.18761-2-krisman@collabora.co.uk
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-02-28 17:26:07 +01:00
Dave Jiang
11bac80004 mm, fs: reduce fault, page_mkwrite, and pfn_mkwrite to take only vmf
->fault(), ->page_mkwrite(), and ->pfn_mkwrite() calls do not need to
take a vma and vmf parameter when the vma already resides in vmf.

Remove the vma parameter to simplify things.

[arnd@arndb.de: fix ARM build]
  Link: http://lkml.kernel.org/r/20170125223558.1451224-1-arnd@arndb.de
Link: http://lkml.kernel.org/r/148521301778.19116.10840599906674778980.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Darrick J. Wong <darrick.wong@oracle.com>
Cc: Matthew Wilcox <mawilcox@microsoft.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Jan Kara <jack@suse.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-24 17:46:54 -08:00
Shawn Guo
54d82e0f2d drm: qxl: use vblank hooks in struct drm_crtc_funcs
The vblank hooks in struct drm_driver are deprecated and only meant for
legacy drivers.  For modern drivers with DRIVER_MODESET flag, the hooks
in struct drm_crtc_funcs should be used instead.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Dave Airlie <airlied@redhat.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1486458995-31018-16-git-send-email-shawnguo@kernel.org
2017-02-21 11:17:55 -05:00
Daniel Vetter
da7bdda2af drm/fb-helper: Automatically clean up fb_info
Noticed that everyone duplicates the same logic here and we could safe
a few lines per driver. Yay for lots of drivers to make such tiny
refactors worth-while!

v2: Forgot to git add everything :(

v3: Actually remove release_fbi (Sean, Emil, Chris) ...

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Noralf Trønnes <noralf@tronnes.org>
Cc: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170207161603.17611-1-daniel.vetter@ffwll.ch
2017-02-07 21:36:28 +01:00
Gabriel Krisman Bertazi
e4563f6ba7 drm: Rely on mode_config data for fb_helper initialization
Instead of receiving the num_crts as a parameter, we can read it
directly from the mode_config structure.  I audited the drivers that
invoke this helper and I believe all of them initialize the mode_config
struct accordingly, prior to calling the fb_helper.

I used the following coccinelle hack to make this transformation, except
for the function headers and comment updates.  The first and second
rules are split because I couldn't find a way to remove the unused
temporary variables at the same time I removed the parameter.

// <smpl>
@r@
expression A,B,D,E;
identifier C;
@@
(
- drm_fb_helper_init(A,B,C,D)
+ drm_fb_helper_init(A,B,D)
|
- drm_fbdev_cma_init_with_funcs(A,B,C,D,E)
+ drm_fbdev_cma_init_with_funcs(A,B,D,E)
|
- drm_fbdev_cma_init(A,B,C,D)
+ drm_fbdev_cma_init(A,B,D)
)

@@
expression A,B,C,D,E;
@@
(
- drm_fb_helper_init(A,B,C,D)
+ drm_fb_helper_init(A,B,D)
|
- drm_fbdev_cma_init_with_funcs(A,B,C,D,E)
+ drm_fbdev_cma_init_with_funcs(A,B,D,E)
|
- drm_fbdev_cma_init(A,B,C,D)
+ drm_fbdev_cma_init(A,B,D)
)

@@
identifier r.C;
type T;
expression V;
@@
- T C;
<...
when != C
- C = V;
...>
// </smpl>

Changes since v1:
 - Rebased on top of the tip of drm-misc-next.
 - Remove mention to sti since a proper fix got merged.

Suggested-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170202162640.27261-1-krisman@collabora.co.uk
2017-02-02 19:12:00 +01:00
Gabriel Krisman Bertazi
cbdded7f8a drm: qxl: Embed drm_device into driver structure
This is the recommended way to create the drm_device structure,
according to DRM documentation.

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170127010548.27970-4-krisman@collabora.co.uk
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-02-02 10:02:37 +01:00
Gabriel Krisman Bertazi
d74d74aeaf drm: qxl: Drop duplicated pci_device pointer attribute
qxl_device duplicates the pointer to struct pci_dev, which is not
needed since we already have it in the drm_device structure.  Clean it
up.

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170127010548.27970-3-krisman@collabora.co.uk
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-02-02 10:02:36 +01:00
Gabriel Krisman Bertazi
5472bdee3f drm: qxl: Drop duplicated device pointer attribute
qxl_device duplicates a pointer to struct device, which is not needed
since we already have it in the drm_device structure.  Clean it up.

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170127010548.27970-2-krisman@collabora.co.uk
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-02-02 10:02:34 +01:00
Gabriel Krisman Bertazi
768851b92c drm: qxl: Drop misleading comment
No longer true since commit 07f8d9bdb2 ("drm/qxl: add support for > 1
output").  qxl_num_crtc defaults to 4 and is configurable as a module
parameter.

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170127010548.27970-1-krisman@collabora.co.uk
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-02-02 10:02:33 +01:00
Christian König
260498f2cd drm/ttm: revert "implement LRU add callbacks v2"
The additional housekeeping had too much CPU overhead,
let's use the BO priorities instead.

agd: also revert hibmc changes

Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-and-Tested-by: Roger.He <Hongbo.He@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-01-27 12:20:34 -05:00
Nicolai Hähnle
66257db7a5 drm/ttm: add evict parameter to ttm_bo_driver::move_notify
Ensure that the driver can listen to evictions even when they don't take the
path through ttm_bo_driver::move.

This is crucial for amdgpu, which relies on an eviction counter to skip
re-binding page tables when possible.

Signed-off-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-01-27 11:13:15 -05:00
Gabriel Krisman Bertazi
6f897f51c4 drm: qxl: Open code teardown function for qxl
This avoids using the deprecated drm_put_dev() and unload() hook
interfaces in the qxl driver.

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Gustavo Padovan <gustavo.padovan@collabora.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170119134806.8926-2-krisman@collabora.co.uk
2017-01-19 15:33:30 -02:00
Gabriel Krisman Bertazi
2b65d5677a drm: qxl: Open code probing sequence for qxl
This avoids using the deprecated drm_get_pci_dev() and load() hook
interfaces in the qxl driver.

The only tricky part is to ensure TTM debugfs initialization happens
after the debugfs root node is created, which is done by moving that
code into the debufs_init() hook.

Tested on qemu with igt and running a WM on top of X.

Changes since v1:
 - Drop verification for primary minor in qxl_debugsfs_init.
Changes since V2:
 - Put new header together with other debugfs headers.

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Gustavo Padovan <gustavo.padovan@collabora.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170119134806.8926-1-krisman@collabora.co.uk
2017-01-19 15:33:25 -02:00
Gabriel Krisman Bertazi
8e945cba25 drm: qxl: Let DRM core handle connector registering
Registering the connector explicitly right after creation is not
necessary for modesetting drivers, because drm_dev_register already takes
care of this on the core side, by calling drm_modeset_register_all.

In addition, performing the initialization too early will get in the way
of the load() hook removal, because the connector interface cannot be
published prior to registering the minors.

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
CC: Dave Airlie <airlied@redhat.com>
CC: Daniel Vetter <daniel.vetter@ffwll.ch>
CC: dri-devel@lists.freedesktop.org
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170112161610.19924-1-krisman@collabora.co.uk
2017-01-17 09:43:50 -02:00
Benjamin Gaignard
011cda5899 drm: fix compilations issues introduced by "drm: allow to use mmuless SoC"
Removing MMU configuration flag from DRM make few automatic
build failed when they answer yes to all flags.

Add asm/vga.h file on Blackfin architecture to not broke compilation.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Fixes: 62a0d98a18 ("drm: allow to use mmuless SoC")
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1483789151-6603-1-git-send-email-benjamin.gaignard@linaro.org
2017-01-09 11:30:30 +01:00
Gabriel Krisman Bertazi
11b3c20bdd drm: Change the return type of the unload hook to void
The integer returned by the unload hook is ignored by the drm core, so
let's make it void.

This patch was created using the following Coccinelle semantic script
(except for the declaration and comment in drm_drv.h):

Compile-tested only.

// <smpl>
@ get_name @
struct drm_driver drv;
identifier fn;
@@
drv.unload = fn;

@ replace_type @
identifier get_name.fn;
@@
- int
+ void
fn (...)
{
...
}

@ remove_return_param @
identifier get_name.fn;
@@
void fn (...)
{
<...
if (...)
return
- ...
;
...>
 }

@ drop_final_return @
identifier get_name.fn;
@@
void fn (...)
{
...

- return 0;
}
// </smpl>

Suggested-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Acked-by: Christian König <christian.koenig@amd.com>.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170106175731.29196-1-krisman@collabora.co.uk
2017-01-09 11:25:22 +01:00
Daniel Vetter
b5c3714fe8 drm/mm: Convert to drm_printer
Including all drivers. I thought about keeping small compat functions
to avoid having to change all drivers. But I really like the
drm_printer idea, so figured spreading it more widely is a good thing.

v2: Review from Chris:
- Natural argument order and better name for drm_mm_print.
- show_mm() macro in the selftest.

Cc: Rob Clark <robdclark@gmail.com>
Cc: Russell King <rmk+kernel@armlinux.org.uk>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Jyri Sarha <jsarha@ti.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1483009764-8281-1-git-send-email-daniel.vetter@ffwll.ch
2016-12-30 12:08:28 +01:00
Laurent Pinchart
9338203c4f drm: Don't include <drm/drm_encoder.h> in <drm/drm_crtc.h>
<drm/drm_crtc.h> used to define most of the in-kernel KMS API. It has
now been split into separate files for each object type, but still
includes most other KMS headers to avoid breaking driver compilation.

As a step towards fixing that problem, remove the inclusion of
<drm/drm_encoder.h> from <drm/drm_crtc.h> and include it instead where
appropriate. Also remove the forward declarations of the drm_encoder and
drm_encoder_helper_funcs structures from <drm/drm_crtc.h> as they're not
needed in the header.

<drm/drm_encoder.h> now has to include <drm/drm_mode.h> and contain a
forward declaration of struct drm_encoder in order to allow including it
as the first header in a compilation unit.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Sinclair Yeh <syeh@vmware.com> # For vmwgfx
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1481709550-29226-2-git-send-email-laurent.pinchart+renesas@ideasonboard.com
2016-12-18 16:29:29 +05:30
Ville Syrjälä
272725c7db drm: Nuke fb->bits_per_pixel
Replace uses of fb->bits_per_pixel with fb->format->cpp[0]*8.
Less duplicated information is a good thing.

Note that I didn't put parens around the cpp*8 in the below cocci script,
on account of not wanting spurious parens all over the place. Instead I
did the unsafe way, and tried to look over the entire diff to spot if
any dangerous expressions were produced. I didn't see any.

There are some cases where previously the code did X*bpp/8, so the
division happened after the multiplication. Those are now just X*cpp
so the division effectively happens before the multiplication,
but that is perfectly fine since bpp is always a multiple of 8.

@@
struct drm_framebuffer *FB;
expression E;
@@
 drm_helper_mode_fill_fb_struct(...) {
	...
-	FB->bits_per_pixel = E;
	...
 }

@@
struct drm_framebuffer *FB;
expression E;
@@
 i9xx_get_initial_plane_config(...) {
	...
-	FB->bits_per_pixel = E;
	...
 }

@@
struct drm_framebuffer *FB;
expression E;
@@
 ironlake_get_initial_plane_config(...) {
	...
-	FB->bits_per_pixel = E;
	...
 }

@@
struct drm_framebuffer *FB;
expression E;
@@
 skylake_get_initial_plane_config(...) {
	...
-	FB->bits_per_pixel = E;
	...
 }

@@
struct drm_framebuffer FB;
expression E;
@@
(
- E * FB.bits_per_pixel / 8
+ E * FB.format->cpp[0]
|
- FB.bits_per_pixel / 8
+ FB.format->cpp[0]
|
- E * FB.bits_per_pixel >> 3
+ E * FB.format->cpp[0]
|
- FB.bits_per_pixel >> 3
+ FB.format->cpp[0]
|
- (FB.bits_per_pixel + 7) / 8
+ FB.format->cpp[0]
|
- FB.bits_per_pixel
+ FB.format->cpp[0] * 8
|
- FB.format->cpp[0] * 8 != 8
+ FB.format->cpp[0] != 1
)

@@
struct drm_framebuffer *FB;
expression E;
@@
(
- E * FB->bits_per_pixel / 8
+ E * FB->format->cpp[0]
|
- FB->bits_per_pixel / 8
+ FB->format->cpp[0]
|
- E * FB->bits_per_pixel >> 3
+ E * FB->format->cpp[0]
|
- FB->bits_per_pixel >> 3
+ FB->format->cpp[0]
|
- (FB->bits_per_pixel + 7) / 8
+ FB->format->cpp[0]
|
- FB->bits_per_pixel
+ FB->format->cpp[0] * 8
|
- FB->format->cpp[0] * 8 != 8
+ FB->format->cpp[0] != 1
)

@@
struct drm_plane_state *state;
expression E;
@@
(
- E * state->fb->bits_per_pixel / 8
+ E * state->fb->format->cpp[0]
|
- state->fb->bits_per_pixel / 8
+ state->fb->format->cpp[0]
|
- E * state->fb->bits_per_pixel >> 3
+ E * state->fb->format->cpp[0]
|
- state->fb->bits_per_pixel >> 3
+ state->fb->format->cpp[0]
|
- (state->fb->bits_per_pixel + 7) / 8
+ state->fb->format->cpp[0]
|
- state->fb->bits_per_pixel
+ state->fb->format->cpp[0] * 8
|
- state->fb->format->cpp[0] * 8 != 8
+ state->fb->format->cpp[0] != 1
)

@@
@@
- (8 * 8)
+ 8 * 8

@@
struct drm_framebuffer FB;
@@
- (FB.format->cpp[0])
+ FB.format->cpp[0]

@@
struct drm_framebuffer *FB;
@@
- (FB->format->cpp[0])
+ FB->format->cpp[0]

@@
@@
 struct drm_framebuffer {
	 ...
-	 int bits_per_pixel;
	 ...
 };

v2: Clean up the 'cpp*8 != 8' and '(8 * 8)' cases (Laurent)
v3: Adjusted the semantic patch a bit and regenerated due to code
    changes

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com> (v1)
Link: http://patchwork.freedesktop.org/patch/msgid/1481751140-18352-1-git-send-email-ville.syrjala@linux.intel.com
2016-12-15 14:55:34 +02:00
Ville Syrjälä
b00c600e91 drm: Nuke fb->depth
Replace uses of fb->depth with fb->format->depth. Less duplicate
information is a good thing.

@@
struct drm_framebuffer *fb;
expression E;
@@
 drm_helper_mode_fill_fb_struct(...) {
	...
-	fb->depth = E;
	...
 }

@@
struct nouveau_framebuffer *fb;
@@
- fb->base.depth
+ fb->base.format->depth

@@
struct drm_framebuffer fb;
@@
- fb.depth
+ fb.format->depth

@@
struct drm_framebuffer *fb;
@@
- fb->depth
+ fb->format->depth

@@
struct drm_framebuffer fb;
@@
- (fb.format->depth)
+ fb.format->depth

@@
struct drm_framebuffer *fb;
@@
- (fb->format->depth)
+ fb->format->depth

@@
@@
 struct drm_framebuffer {
	 ...
-	 unsigned int depth;
	 ...
 };

v2: Drop the vmw stuff (Daniel)
    Rerun spatch due to code changes

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1481751095-18249-1-git-send-email-ville.syrjala@linux.intel.com
2016-12-15 14:55:33 +02:00
Ville Syrjälä
5360943f05 drm/qxl: Call drm_helper_mode_fill_fb_struct() before drm_framebuffer_init()
We want framebuffers to be mostly useable already before
drm_framebuffer_init() is called, and so we will start demanding that
all the interesting format/size/etc. information be filled in before
drm_framebuffer_init(). drm_helper_mode_fill_fb_struct() will do that
for us, so let's make sure it gets called before drm_framebuffer_init().

Cc: Dave Airlie <airlied@redhat.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1479498793-31021-16-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-12-15 14:55:28 +02:00
Ville Syrjälä
a3f913ca98 drm: Pass 'dev' to drm_helper_mode_fill_fb_struct()
Pass the drm_device to drm_helper_mode_fill_fb_struct() so that we can
populate fb->dev early. Will make it easier to use the fb before we
register it.

@@
identifier fb, mode_cmd;
@@
 void drm_helper_mode_fill_fb_struct(
+				     struct drm_device *dev,
				     struct drm_framebuffer *fb,
				     const struct drm_mode_fb_cmd2 *mode_cmd
				     );

@@
identifier fb, mode_cmd;
@@
 void drm_helper_mode_fill_fb_struct(
+				     struct drm_device *dev,
				     struct drm_framebuffer *fb,
				     const struct drm_mode_fb_cmd2 *mode_cmd
				     )
{ ... }

@@
function func;
identifier dev;
expression E1, E2;
@@
func(struct drm_device *dev, ...)
{
 ...
 drm_helper_mode_fill_fb_struct(
+				dev,
				E1, E2);
 ...
}

@@
expression E1, E2;
@@
 drm_helper_mode_fill_fb_struct(
+				dev,
				E1, E2);

v2: Rerun spatch due to code changes

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1481748539-18283-1-git-send-email-ville.syrjala@linux.intel.com
2016-12-15 14:03:30 +02:00
Daniel Vetter
75e75cbd55 Merge remote-tracking branch 'airlied/drm-next' into drm-misc-next
Backmerge v4.9-rc8 to get at

commit e94bd1736f
Author: Michel Dänzer <michel.daenzer@amd.com>
Date:   Wed Nov 30 17:30:01 2016 +0900

drm: Don't call drm_for_each_crtc with a non-KMS driver

so I can apply Michel's follow-up patch.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2016-12-06 10:26:48 +01:00
Pan Bian
16571a8a43 drm/qxl: fix use of uninitialized variable
In function qxl_release_alloc(), when kmalloc() returns a NULL pointer,
it returns value 0 and parameter *ret is uninitialized. 0 means no error
to the callers of qxl_release_alloc(). The callers keep going and will
try to reference the uninitialized variable. This patch fixes the bug,
returning "-ENOMEM" when kmalloc() fails.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188911

Signed-off-by: Pan Bian <bianpan2016@163.com>
[seanpaul fixed up subject prefix]
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1480777902-7648-1-git-send-email-bianpan2016@163.com
2016-12-05 13:14:13 -05:00
Daniel Vetter
48d9831627 drm/qxl: Don't register debugfs for control minors
They're gone since 8a357d1004 ("drm: Nerf DRM_CONTROL nodes").
Spotted while doing a full audit when revieng a similar patch from
Nicolai for radeon.

v2: Drink coffee first aka don't forget the unregister side.

Cc: Dave Airlie <airlied@redhat.com>
Fixes: 8a357d1004 ("drm: Nerf DRM_CONTROL nodes")
Cc: Nicolai Stange <nicstange@gmail.com>
Acked-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161205072926.12546-1-daniel.vetter@ffwll.ch
2016-12-05 08:30:35 +01:00
Dave Airlie
6320745596 drm/virtio: fix busid in a different way, allocate more vbufs.
drm/qxl: various bugfixes and cleanups,
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQIcBAABAgAGBQJYMzLfAAoJEEy22O7T6HE41rIQANAEl/o8cYUoyYTJlhmmnl2U
 K+QBdr7PACdbr8RZrGpwA5ad9ZJGijpZRd2gThrzNS0JBdZI48gPEzU7V206xlyD
 AriBeAu6IkoBTEl+GGx2DfvOdLR6+7KlIrDYIpl2vILgkqlHhneXdHR3R03byRHG
 2Jrxv2YQxCs8swtAb8FRkVNaUgrfkKOKFFlx1LoLFApYeP02oSxZp0Ve4nuRNj7x
 9DCivIw4NyQ9tY1fORapmrEPTerqZnzYdb9RFSv4xilx4Stq1UWdXfTSpwXZHZaG
 VroXZb1I0fZEk1aapIxuzLZFGNSM7wLET/nK02sSvzxJJv2PiyVAabIo70nUqsQK
 H/iGT2g4MZC1Yvz6evENtckbiA1p3F9jnd+Po9ivDY/RrTpND3hVC2WbcOXWxZkb
 m69muvXfrnZwoF9xWPG8aTrCATim++1Ty8/8LoKdVq1d0Dp/Gzk8KnklBPY2vRFt
 dpxqH3jLgED/QcO5W/yQdf0kPRsrNwKFNLqP9bCF2hMIw1VHHddZtnBBXDGATXYq
 hdFA8EEg3gh/kY7V8b+GyxjRKRbveG208hu+H4EirxHmRn5xJN1VoTLk9va+AJL1
 I30l4USLDkTgf1AjYmk7yFIUTemCtwjfa0lsuu4l3rRJ3k1eBrtZe2cpWv2BoQDU
 by0sNnDelzJTQ9/v1i3J
 =OYiT
 -----END PGP SIGNATURE-----

Merge tag 'drm-qemu-20161121' of git://git.kraxel.org/linux into drm-next

drm/virtio: fix busid in a different way, allocate more vbufs.
drm/qxl: various bugfixes and cleanups,

* tag 'drm-qemu-20161121' of git://git.kraxel.org/linux: (224 commits)
  drm/virtio: allocate some extra bufs
  qxl: Allow resolution which are not multiple of 8
  qxl: Don't notify userspace when monitors config is unchanged
  qxl: Remove qxl_bo_init() return value
  qxl: Call qxl_gem_{init, fini}
  qxl: Add missing '\n' to qxl_io_log() call
  qxl: Remove unused prototype
  qxl: Mark some internal functions as static
  Revert "drm: virtio: reinstate drm_virtio_set_busid()"
  drm/virtio: fix busid regression
  drm: re-export drm_dev_set_unique
  Linux 4.9-rc5
  gp8psk: Fix DVB frontend attach
  gp8psk: fix gp8psk_usb_in_op() logic
  dvb-usb: move data_mutex to struct dvb_usb_device
  iio: maxim_thermocouple: detect invalid storage size in read()
  aoe: fix crash in page count manipulation
  lightnvm: invalid offset calculation for lba_shift
  Kbuild: enable -Wmaybe-uninitialized warnings by default
  pcmcia: fix return value of soc_pcmcia_regulator_set
  ...
2016-11-30 14:18:51 +10:00
Christophe Fergeau
ff996e72a0 qxl: Allow resolution which are not multiple of 8
The use of drm_cvt_mode() in qxl_add_monitors_config_modes() means that
the resolutions we are going to present to user-space are going to be
rounded down to a multiple of 8. In the QXL arbitrary resolution case,
this is not useful.
This commit forces the actual width/height that was requested by the
client in the drm_display_mode structure rather than keeping the
rounded version.

Signed-off-by: Christophe Fergeau <cfergeau@redhat.com>
Message-id: 20161108091209.25568-8-cfergeau@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-11-15 09:45:33 +01:00
Christophe Fergeau
9e3b317839 qxl: Don't notify userspace when monitors config is unchanged
When the QXL driver receives a QXL_INTERRUPT_CLIENT_MONITORS_CONFIG interrupt,
we currently always notify userspace that there was some hotplug event.

However, gnome-shell/mutter is reacting to this event by attempting a
resolution change, which it does by issueing drmModeRmFB, drmModeAddFB,
and then drmModeSetCrtc. This has the side-effect of causing
qxl_crtc_mode_set() to tell the QXL virtual hardware that a primary
surface was destroyed and created. After going through QEMU and then the
remote SPICE client, a new identical monitors config message will be
sent, resulting in a QXL_INTERRUPT_CLIENT_MONITORS_CONFIG interrupt to
be emitted, and the same scenario occurring again.

As destroying/creating the primary surface causes a visible screen
flicker, this makes the guest hard to use (
https://bugzilla.redhat.com/show_bug.cgi?id=1266484 ).

This commit checks if the screen configuration we received is the same
one as the current one, and does not notify userspace about it if that's
the case.

Signed-off-by: Christophe Fergeau <cfergeau@redhat.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
Message-id: 20161108091209.25568-7-cfergeau@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-11-15 09:45:32 +01:00
Christophe Fergeau
ae4b9a0923 qxl: Remove qxl_bo_init() return value
It's always returning 0, and it's always ignored.

Signed-off-by: Christophe Fergeau <cfergeau@redhat.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
Message-id: 20161108091209.25568-6-cfergeau@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-11-15 09:45:32 +01:00
Christophe Fergeau
b3740e8860 qxl: Call qxl_gem_{init, fini}
qdev->gem.objects was initialized directly in qxl_device_init() rather
than going through qxl_gem_init(), and qxl_gem_fini() was never called.

Signed-off-by: Christophe Fergeau <cfergeau@redhat.com>
Message-id: 20161108091209.25568-5-cfergeau@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-11-15 09:45:32 +01:00
Christophe Fergeau
00d7d64270 qxl: Add missing '\n' to qxl_io_log() call
The message has to be terminated by a newline as it's not going to get
added automatically.

Signed-off-by: Christophe Fergeau <cfergeau@redhat.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
Message-id: 20161108091209.25568-4-cfergeau@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-11-15 09:45:31 +01:00
Christophe Fergeau
86c792aa22 qxl: Remove unused prototype
qxl_crtc_set_from_monitors_config() is defined in qxl_drv.h but never
implemented.

Signed-off-by: Christophe Fergeau <cfergeau@redhat.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
Message-id: 20161108091209.25568-3-cfergeau@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-11-15 09:45:31 +01:00
Christophe Fergeau
e4a76442ef qxl: Mark some internal functions as static
They are not used outside of their respective source file

Signed-off-by: Christophe Fergeau <cfergeau@redhat.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
Message-id: 20161108091209.25568-2-cfergeau@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-11-15 09:45:31 +01:00
Stefan Christ
1102af19cd drm/qxl: use DRM_FB_HELPER_DEFAULT_OPS for fb_ops
This patch removes a TODO comment in the code. I do not know whether it
is still relevant.

Cc: Dave Airlie <airlied@redhat.com>
Signed-off-by: Stefan Christ <contact@stefanchrist.eu>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1479078208-25221-10-git-send-email-contact@stefanchrist.eu
2016-11-14 07:55:33 +01:00
Dave Airlie
220196b384 Merge tag 'topic/drm-misc-2016-10-27' of git://anongit.freedesktop.org/git/drm-intel into drm-next
Pull request already again to get the s/fence/dma_fence/ stuff in and
allow everyone to resync. Otherwise really just misc stuff all over, and a
new bridge driver.

* tag 'topic/drm-misc-2016-10-27' of git://anongit.freedesktop.org/git/drm-intel:
  drm/bridge: fix platform_no_drv_owner.cocci warnings
  drm/bridge: fix semicolon.cocci warnings
  drm: Print some debug/error info during DP dual mode detect
  drm: mark drm_of_component_match_add dummy inline
  drm/bridge: add Silicon Image SiI8620 driver
  dt-bindings: add Silicon Image SiI8620 bridge bindings
  video: add header file for Mobile High-Definition Link (MHL) interface
  drm: convert DT component matching to component_match_add_release()
  dma-buf: Rename struct fence to dma_fence
  dma-buf/fence: add an lockdep_assert_held()
  drm/dp: Factor out helper to distinguish between branch and sink devices
  drm/edid: Only print the bad edid when aborting
  drm/msm: add missing header dependencies
  drm/msm/adreno: move function declarations to header file
  drm/i2c/tda998x: mark symbol static where possible
  doc: add missing docbook parameter for fence-array
  drm: RIP mode_config->rotation_property
  drm/msm/mdp5: Advertize 180 degree rotation
  drm/msm/mdp5: Use per-plane rotation property
2016-10-28 11:33:52 +10:00
Christian König
a2ab19fed9 drm/ttm: make eviction decision a driver callback v2
This way the driver can decide if it is valuable to evict a BO or not.

The current implementation is added as default to all existing drivers.

v2: fix some typos found during internal testing

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-10-25 14:44:04 -04:00
Chris Wilson
f54d186700 dma-buf: Rename struct fence to dma_fence
I plan to usurp the short name of struct fence for a core kernel struct,
and so I need to rename the specialised fence/timeline for DMA
operations to make room.

A consensus was reached in
https://lists.freedesktop.org/archives/dri-devel/2016-July/113083.html
that making clear this fence applies to DMA operations was a good thing.
Since then the patch has grown a bit as usage increases, so hopefully it
remains a good thing!

(v2...: rebase, rerun spatch)
v3: Compile on msm, spotted a manual fixup that I broke.
v4: Try again for msm, sorry Daniel

coccinelle script:
@@

@@
- struct fence
+ struct dma_fence
@@

@@
- struct fence_ops
+ struct dma_fence_ops
@@

@@
- struct fence_cb
+ struct dma_fence_cb
@@

@@
- struct fence_array
+ struct dma_fence_array
@@

@@
- enum fence_flag_bits
+ enum dma_fence_flag_bits
@@

@@
(
- fence_init
+ dma_fence_init
|
- fence_release
+ dma_fence_release
|
- fence_free
+ dma_fence_free
|
- fence_get
+ dma_fence_get
|
- fence_get_rcu
+ dma_fence_get_rcu
|
- fence_put
+ dma_fence_put
|
- fence_signal
+ dma_fence_signal
|
- fence_signal_locked
+ dma_fence_signal_locked
|
- fence_default_wait
+ dma_fence_default_wait
|
- fence_add_callback
+ dma_fence_add_callback
|
- fence_remove_callback
+ dma_fence_remove_callback
|
- fence_enable_sw_signaling
+ dma_fence_enable_sw_signaling
|
- fence_is_signaled_locked
+ dma_fence_is_signaled_locked
|
- fence_is_signaled
+ dma_fence_is_signaled
|
- fence_is_later
+ dma_fence_is_later
|
- fence_later
+ dma_fence_later
|
- fence_wait_timeout
+ dma_fence_wait_timeout
|
- fence_wait_any_timeout
+ dma_fence_wait_any_timeout
|
- fence_wait
+ dma_fence_wait
|
- fence_context_alloc
+ dma_fence_context_alloc
|
- fence_array_create
+ dma_fence_array_create
|
- to_fence_array
+ to_dma_fence_array
|
- fence_is_array
+ dma_fence_is_array
|
- trace_fence_emit
+ trace_dma_fence_emit
|
- FENCE_TRACE
+ DMA_FENCE_TRACE
|
- FENCE_WARN
+ DMA_FENCE_WARN
|
- FENCE_ERR
+ DMA_FENCE_ERR
)
 (
 ...
 )

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Acked-by: Sumit Semwal <sumit.semwal@linaro.org>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161025120045.28839-1-chris@chris-wilson.co.uk
2016-10-25 14:40:39 +02:00
Dave Airlie
c0d5fb4d0d bugfixes for qemu (bochs, qxl and virtio-gpu) drm drivers
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQIcBAABAgAGBQJX4lTNAAoJEEy22O7T6HE4aT4P/iWFkmG/Wg5WqANDrfZw6tPb
 sy7Nhl9w5L9tyMQY2Mvan3zaBEnpy/QVHCNn3iFBx68TeP6jO4eA5X4xtTGlFVV0
 +K2vjPj7pYZKo4InwvTAnL9G5FpfPMtFydLsjuZOLwrfeAIDj3MMTpkvKiOAPkAg
 gNSmNGkt+rxo0gFVHyev1/TXjV5J2fXhv+NZiqdegEkdSFi7A63TO9pN0d/VDcCh
 c6ZoVy1OFKfTD/2kvtBqgeFghXThjkJv+38uRzZwq5yGerq/4L8FU5tD6WTAowzo
 MayJdGIKaSqEDMzIVVMkeCDcDGXrZNAJhwfw5LDsNU2M50LL2oRxil3t7PxLeG8l
 9KOp3jR1L8LGpqyTZQBKrrWhFwF4iZ1f6U7Q3N2MSH8oGc7orqvklis23jhNNkk/
 /oNBckGrX3Hof7mMgaug1RDjEfhXD82awhvEoQS7ep+jYhJnnfqvbx/GvTBc5i3t
 cXu1jNvh1tBKbdbEoFOBrNDla05IL5qD3LaPaH0w4un6YjUhEYdQliDz20e6N5uz
 R2f5BmqcHKkQHH108dOAUNgF9LiHqlZQPVyOYds8ACQTm874COPbgpyFohAl96Ri
 /swEXv8mijluOMp5ZCXaClNvsv18iW/eCNw2ohT8qWbPj4TTuJUy8Rx4RIFBEBMo
 /LoiT6Sf9UFljafQYt50
 =lhHU
 -----END PGP SIGNATURE-----

Merge tag 'drm-qemu-20160921' of git://git.kraxel.org/linux into drm-next

bugfixes for qemu (bochs, qxl and virtio-gpu) drm drivers

* tag 'drm-qemu-20160921' of git://git.kraxel.org/linux:
  drm/virtio: add real fence context and seqno
  drm/virtio: drop virtio_gpu_execbuffer_ioctl() wrapping
  virtio-gpu: avoid possible NULL pointer dereference
  drm/qxl: reapply cursor after SetCrtc calls
  bochs: ignore device if there isn't enougth memory
2016-09-28 13:23:07 +10:00
Dave Airlie
3f346d5dcb Merge tag 'topic/drm-misc-2016-09-25' of git://anongit.freedesktop.org/drm-intel into drm-next
- more core cleanup patches to prep drm_file to be used for
  kernel-internal contexts (David Herrmann)
- more split-up+docs for drm_crtc.c
- lots of small fixes and polish all over

* tag 'topic/drm-misc-2016-09-25' of git://anongit.freedesktop.org/drm-intel: (37 commits)
  drm: bridge: analogix/dp: mark symbols static where possible
  drm/bochs: mark bochs_connector_get_modes() static
  drm/bridge: analogix_dp: Improve panel on time
  drm/bridge: analogix_dp: Don't read EDID if panel present
  drm/bridge: analogix_dp: Remove duplicated code
  Revert "drm/i2c: tda998x: don't register the connector"
  drm: Fix plane type uabi breakage
  dma-buf/sync_file: free fences array in num_fences is 1
  drm/i2c: tda998x: don't register the connector
  drm: Don't swallow error codes in drm_dev_alloc()
  drm: Distinguish no name from ENOMEM in set_unique()
  drm: Remove dirty property from docs
  drm/doc: Document color space handling
  drm: Extract drm_color_mgmt.[hc]
  drm/doc: Polish plane composition property docs
  drm: Conslidate blending properties in drm_blend.[hc]
  drm/doc: Polish for drm_plane.[hc]
  drm: Extract drm_plane.[hc]
  drm/tilcdc: Add atomic and crtc headers to crtc.c
  drm: Fix typo in encoder docs
  ...
2016-09-28 10:28:23 +10:00
Ray Strode
4532b241a4 drm/qxl: reapply cursor after SetCrtc calls
The qxl driver currently destroys and recreates the
qxl "primary" any time the first crtc is set.

A side-effect of destroying the primary is mouse state
associated with the crtc is lost, which leads to
disappearing mouse cursors on wayland sessions.

This commit changes the driver to reapply the cursor
any time SetCrtc is called. It achieves this by keeping
a reference to the cursor bo on the qxl_crtc struct.

Signed-off-by: Ray Strode <rstrode@redhat.com>
Message-id: 1473433745-11016-1-git-send-email-halfline@gmail.com

https://bugzilla.redhat.com/show_bug.cgi?id=1200901
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-09-20 14:25:37 +02:00
Dave Airlie
bd4a68da19 Merge branch 'drm-next-4.9' of git://people.freedesktop.org/~agd5f/linux into drm-next
More radeon and amdgpu changes for 4.9. Highlights:
- Initial SI support for amdgpu (controlled by a Kconfig option)
- misc ttm cleanups
- runtimepm fixes
- S3/S4 fixes
- power improvements
- lots of code cleanups and optimizations

* 'drm-next-4.9' of git://people.freedesktop.org/~agd5f/linux: (151 commits)
  drm/ttm: remove cpu_address member from ttm_tt
  drm/radeon/radeon_device: remove unused function
  drm/amdgpu: clean function declarations in amdgpu_ttm.c up
  drm/amdgpu: use the new ring ib and dma frame size callbacks (v2)
  drm/amdgpu/vce3: add ring callbacks for ib and dma frame size
  drm/amdgpu/vce2: add ring callbacks for ib and dma frame size
  drm/amdgpu/vce: add common ring callbacks for ib and dma frame size
  drm/amdgpu/uvd6: add ring callbacks for ib and dma frame size
  drm/amdgpu/uvd5: add ring callbacks for ib and dma frame size
  drm/amdgpu/uvd4.2: add ring callbacks for ib and dma frame size
  drm/amdgpu/sdma3: add ring callbacks for ib and dma frame size
  drm/amdgpu/sdma2.4: add ring callbacks for ib and dma frame size
  drm/amdgpu/cik_sdma: add ring callbacks for ib and dma frame size
  drm/amdgpu/si_dma: add ring callbacks for ib and dma frame size
  drm/amdgpu/gfx8: add ring callbacks for ib and dma frame size
  drm/amdgpu/gfx7: add ring callbacks for ib and dma frame size
  drm/amdgpu/gfx6: add ring callbacks for ib and dma frame size
  drm/amdgpu/ring: add an interface to get dma frame and ib size
  drm/amdgpu/sdma3: drop unused functions
  drm/amdgpu/gfx6: drop gds_switch callback
  ...
2016-09-20 06:17:38 +10:00
David Herrmann
d9a1f0b4eb drm: use drm_file to tag vm-bos
Rather than using "struct file*", use "struct drm_file*" as tag VM tag for
BOs. This will pave the way for "struct drm_file*" without any "struct
file*" back-pointer.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20160901124837.680-3-dh.herrmann@gmail.com
2016-09-19 11:22:08 +02:00
Masahiro Yamada
96c594ba4f drm/qxl: squash lines for simple wrapper functions
Remove unneeded variables and assignments.

Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1473863952-7658-5-git-send-email-yamada.masahiro@socionext.com
2016-09-15 10:42:01 -04:00
Christian König
283cde69aa drm/ttm: rework handling of private mem types
Instead of keeping a bunch of potentially unused flags, just define
the start for private memory types and remove the rest.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-09-14 15:10:42 -04:00
Daniel Vetter
2b721f2077 drm: Protect fb_defio in drivers with CONFIG_KMS_FBDEV_EMULATION
For reasons that entirely elude me fb.h exposes all the structures,
even when it is not enabled. Except for special stuff like fb_defio.

Which means all the drivers which haven't yet switched over to the
defio support in the helpers and still roll their own, will fail
to compile when fbdev emulation is disabled. Protect just those
bits, as a gnarly reminder that conversion to the core defio helpers
would be good.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1470847958-28465-6-git-send-email-daniel.vetter@ffwll.ch
Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-08-26 05:11:35 +10:00
Dave Airlie
e9c3ddee6a Merge branch 'drm-next-4.9' of git://people.freedesktop.org/~agd5f/linux into drm-next
First drm-next pull for radeon and amdgpu for 4.9.  Highlights:
- powerplay support for iceland asics
- improved GPU reset (both full asic and per block)
- UVD and VCE powergating for CZ and ST
- VCE clockgating for CZ and ST
- Support for pre-initialized (e.g., zeroed) vram buffers
- ttm cleanups
- virtual display support
- core and radeon/amdgpu support for page_flip_target
- lots of bug fixes and clean ups

* 'drm-next-4.9' of git://people.freedesktop.org/~agd5f/linux: (171 commits)
  drm/amdgpu: use memcpy_toio for VCE firmware upload
  drm/amdgpu: use memcpy_to/fromio for UVD fw upload
  drm/amd/powerplay: delete useless code in iceland_hwmgr.c.
  drm/radeon: switch UVD code to use UVD_NO_OP for padding
  drm/amdgpu: switch UVD code to use UVD_NO_OP for padding
  drm/radeon: add support for UVD_NO_OP register
  drm/amdgpu: add support for UVD_NO_OP register
  drm/amdgpu: fix VCE ib alignment value
  drm/amdgpu: fix IB alignment for UVD
  drm/amd/amdgpu: Print ring name in amdgpu_ib_schedule()
  drm/radeon: remove dead code, si_mc_load_microcode (v2)
  drm/radeon/cik: remove dead code (v2)
  drm/amd/powerplay: avoid NULL dereference, cz_hwmgr.c
  drm/amd/powerplay: avoid NULL pointer dereference
  drm/amdgpu/gmc8: remove dead code (v2)
  drm/amdgpu/gmc7: remove dead code (v2)
  drm/amdgpu: Fix indentation in dce_v8_0_audio_write_sad_regs()
  drm/amdgpu: Use correct mask in dce_v8_0_afmt_setmode() and fix comment typos.
  drm/amdgpu: cleanup amdgpu_vm_bo_update params
  drm/amdgpu: stop adding dummy entry in amdgpu_ttm_placement_init
  ...
2016-08-25 12:59:50 +10:00
Daniel Vetter
0c756134cf drm: Protect fb_defio in drivers with CONFIG_KMS_FBDEV_EMULATION
For reasons that entirely elude me fb.h exposes all the structures,
even when it is not enabled. Except for special stuff like fb_defio.

Which means all the drivers which haven't yet switched over to the
defio support in the helpers and still roll their own, will fail
to compile when fbdev emulation is disabled. Protect just those
bits, as a gnarly reminder that conversion to the core defio helpers
would be good.

Cc: Dave Airlie <airlied@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1470847958-28465-6-git-send-email-daniel.vetter@ffwll.ch
2016-08-12 10:42:00 +02:00
Daniel Vetter
b1116f645c drm: Remove superflous linux/fb.h includes
Everyone who uses the fbdev emulation helpers doesn't need to include
fb.h directly. Remove it.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1470847958-28465-3-git-send-email-daniel.vetter@ffwll.ch
2016-08-12 10:41:39 +02:00
Michel Dänzer
4499f2acd5 drm/ttm: Remove unused parameter evict from ttm_bo_move_memcpy
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-08-08 11:33:33 -04:00
Markus Elfring
dc3583c86a drm/qxl: Delete an unnecessary check before drm_gem_object_unreference_unlocked()
The drm_gem_object_unreference_unlocked() function tests whether
its argument is NULL and then returns immediately.
Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/913198fa-2aa4-4804-8616-dd495428c0a5@users.sourceforge.net
2016-07-22 11:23:39 -04:00
Daniel Vetter
2383050f6a Merge remote-tracking branch 'airlied/drm-next' into topic/drm-misc
Backmerge drm-next to be able to apply Chris' connector_unregister_all
cleanup (need latest i915 and sun4i state for that).

Also there's a trivial conflict in ttm_bo.c that git rerere fails to
remember.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2016-07-19 09:27:29 +02:00
Tobias Jakobi
f0a3e1e05c drm/qxl: make fbdev support really optional
Currently enabling QXL DRM support automatically pulls in
fbdev dependency. However this dep is unnecessary since
DRM core already handles this for us (DRM_FBDEV_EMULATION).

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1468586897-32298-7-git-send-email-tjakobi@math.uni-bielefeld.de
2016-07-18 09:11:35 +02:00
Dave Airlie
6c181c8210 Merge tag 'topic/drm-misc-2016-07-14' of git://anongit.freedesktop.org/drm-intel into drm-next
I recovered dri-devel backlog from my vacation, more misc stuff:
- of_put_node fixes from Peter Chen (not all yet)
- more patches from Gustavo to use kms-native drm_crtc_vblank_* funcs
- docs sphinxification from Lukas Wunner
- bunch of fixes all over from Dan Carpenter
- more follow up work from Chris register/unregister rework in various
  places
- vgem dma-buf export (for writing testcases)
- small things all over from tons of different people

* tag 'topic/drm-misc-2016-07-14' of git://anongit.freedesktop.org/drm-intel: (52 commits)
  drm: Don't overwrite user ioctl arg unless requested
  dma-buf/sync_file: improve Kconfig description for Sync Files
  MAINTAINERS: add entry for the Sync File Framework
  drm: Resurrect atomic rmfb code
  drm/vgem: Use PAGE_KERNEL in place of x86-specific PAGE_KERNEL_IO
  qxl: silence uninitialized variable warning
  qxl: check for kmap failures
  vga_switcheroo: Sphinxify docs
  drm: Restore double clflush on the last partial cacheline
  gpu: drm: rockchip_drm_drv: add missing of_node_put after calling of_parse_phandle
  gpu: drm: sti_vtg: add missing of_node_put after calling of_parse_phandle
  gpu: drm: sti_hqvdp: add missing of_node_put after calling of_parse_phandle
  gpu: drm: sti_vdo: add missing of_node_put after calling of_parse_phandle
  gpu: drm: sti_compositor: add missing of_node_put after calling of_parse_phandle
  drm/tilcdc: use drm_crtc_handle_vblank()
  drm/rcar-du: use drm_crtc_handle_vblank()
  drm/nouveau: use drm_crtc_handle_vblank()
  drm/atmel: use drm_crtc_handle_vblank()
  drm/armada: use drm_crtc_handle_vblank()
  drm: make drm_vblank_count_and_time() static
  ...
2016-07-15 11:01:37 +10:00
Dan Carpenter
6566435af9 qxl: silence uninitialized variable warning
GCC doesn't complain about this but my static checker does.  We're
passing "drawable" before initializing it.  It's not actually used so
it's harmless and I just removed it.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20160711084716.GB31411@mwanda
2016-07-12 16:20:22 +02:00
Dan Carpenter
f4cceb2aff qxl: check for kmap failures
If kmap fails, it leads to memory corruption.

Fixes: f64122c1f6 ('drm: add new QXL driver. (v1.4)')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20160711084633.GA31411@mwanda
2016-07-12 16:20:17 +02:00
Bhaktipriya Shridhar
7b2d16f55c drm/qxl: Remove deprecated create_singlethread_workqueue
System workqueues have been able to handle high level of concurrency
for a long time now and there's no reason to use dedicated workqueues
just to gain concurrency. Since the workqueue in the QXL graphics device
driver is involved in freeing and processing the release ring
(workitem &qdev->gc_workqxl, maps to gc_work which calls
qxl_garbage_collect) and is not being used on a memory reclaim path,
dedicated gc_queue has been replaced with the use of system_wq.

Unlike a dedicated per-cpu workqueue created with create_workqueue(),
system_wq allows multiple work items to overlap executions even on
the same CPU; however, a per-cpu workqueue doesn't have any CPU
locality or global ordering guarantees unless the target CPU is
explicitly specified and thus the increase of local concurrency
shouldn't make any difference.

flush_work() has been called in qxl_device_fini() to ensure that there
are no pending tasks while disconnecting the driver.

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20160702110209.GA3560@Karyakshetra
2016-07-12 14:44:23 +02:00
Thierry Reding
ab1947be4c drm/qxl: Remove dead code
The QXL driver sets DRIVER_MODESET unconditionally, so testing for the
absence of the feature will always fail.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1466788520-21325-5-git-send-email-frank.binns@imgtec.com
2016-07-12 13:09:20 +02:00
Christian König
77dfc28bad drm/ttm: wait for BO idle in ttm_bo_move_memcpy
When we want to pipeline accelerated moves we need to wait in the fallback path.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-07-07 14:54:35 -04:00
Christian König
88932a7be2 drm/ttm: add wait for idle in all drivers bo_move functions
Wait for idle before moving the BO in all drivers implementing
an accelerated move function.

This should keep the current behavior when removing the pre move wait.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-07-07 14:54:35 -04:00
Dave Airlie
2cca455740 Merge tag 'topic/drm-misc-2016-06-07' of git://anongit.freedesktop.org/drm-intel into drm-next
As promised, piles of prep work all around:
- drm_atomic_state rework, prep for nonblocking commit helpers
- fence patches from Gustavo and Christian to prep for atomic fences and
  some cool work in ttm/amdgpu from Christian
- drm event prep for both nonblocking commit and atomic fences
- Gustavo seems on a crusade against the non-kms-native version of the
  vblank functions.
- prep work from Boris to nuke all the silly ->best_encoder
  implementations we have (we really only need that for truly dynamic
  cases like dvi-i vs dvi-d or dp mst selecting the right transcoder on
  intel)
- prep work from Laurent to rework the format handling functions
- and few small things all over

* tag 'topic/drm-misc-2016-06-07' of git://anongit.freedesktop.org/drm-intel: (47 commits)
  drm/dsi: Implement set tear scanline
  drm/fb_cma_helper: Implement fb_mmap callback
  drm/qxl: Remove useless drm_fb_get_bpp_depth() call
  drm/ast: Remove useless drm_fb_get_bpp_depth() call
  drm/atomic: Fix remaining places where !funcs->best_encoder is valid
  drm/core: Change declaration for gamma_set.
  Documentation: add fence-array to kernel DocBook
  drm/shmobile: use drm_crtc_vblank_{get,put}()
  drm/radeon: use drm_crtc_vblank_{get,put}()
  drm/qxl: use drm_crtc_vblank_{get,put}()
  drm/atmel: use drm_crtc_vblank_{get,put}()
  drm/armada: use drm_crtc_vblank_{get,put}()
  drm/amdgpu: use drm_crtc_vblank_{get,put}()
  drm/virtio: use drm_crtc_send_vblank_event()
  drm/udl: use drm_crtc_send_vblank_event()
  drm/qxl: use drm_crtc_send_vblank_event()
  drm/atmel: use drm_crtc_send_vblank_event()
  drm/armada: use drm_crtc_send_vblank_event()
  drm/doc: Switch to sphinx/rst fixed-width quoting
  drm/doc: Drop kerneldoc for static functions in drm_irq.c
  ...
2016-06-09 11:19:28 +10:00
Dave Airlie
bb4cec0222 Merge tag 'topic/lockless-gem-bo-freeing-2016-06-01' of git://anongit.freedesktop.org/drm-intel into drm-next
lockless gem bo freeing patches (and the oddball related patch) for all
the drivers who's maintainers are asleep at the helm - includes you ;-)

I based this on top of drm-fixes to include Chris' fix for the cma issue.

* tag 'topic/lockless-gem-bo-freeing-2016-06-01' of git://anongit.freedesktop.org/drm-intel: (21 commits)
  drm/arcpgu: Use lockless gem BO free callback
  drm/sun4i: Use lockless gem BO free callback
  drm/omapdrm: Nuke dummy fb->dirty callback
  drm/msm: Nuke dummy fb->dirty callback
  drm/rockchip: Use cma gem vm ops
  drm/sti: Use lockless gem BO free callback
  drm: sti: remove useless call to dev->struct_mutex
  drm/virtio: Use lockless gem BO free callback
  drm/tilcdc: Use lockless gem BO free callback
  drm/shmob: Use lockless gem BO free callback
  drm/rockchip: Use lockless gem BO free callback
  drm/rcar-du: Use lockless gem BO free callback
  drm/qxl: Use lockless gem BO free callback
  drm/nouveau: Use lockless gem BO free callback
  drm/mga200g: Use lockless gem BO free callback
  drm/fls-dcu: Use lockless gem BO free callback
  drm/cirrus: Use lockless gem BO free callback
  drm/bochs: Use lockless gem BO free callback
  drm/atmel: Use lockless gem BO free callback
  drm/ast: Use lockless gem BO free callback
  ...
2016-06-09 11:02:30 +10:00
Laurent Pinchart
cb76e3560a drm/qxl: Remove useless drm_fb_get_bpp_depth() call
The function has no side effect and its returned values are ignored,
don't call it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1465236891-11773-1-git-send-email-laurent.pinchart@ideasonboard.com
2016-06-07 21:40:52 +02:00
Gustavo Padovan
078ace6f4a drm/qxl: use drm_crtc_vblank_{get,put}()
Replace the legacy drm_vblank_{get,put}() with the new helper functions.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1465224105-21485-12-git-send-email-gustavo@padovan.org
2016-06-06 18:04:24 +02:00
Gustavo Padovan
8a60522222 drm/qxl: use drm_crtc_send_vblank_event()
Replace the legacy drm_send_vblank_event() with the new helper function.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1465224105-21485-4-git-send-email-gustavo@padovan.org
2016-06-06 18:03:01 +02:00
Christian König
76bf0db554 dma-buf/fence: make fence context 64 bit v2
Fence contexts are created on the fly (for example) by the GPU scheduler used
in the amdgpu driver as a result of an userspace request. Because of this
userspace could in theory force a wrap around of the 32bit context number
if it doesn't behave well.

Avoid this by increasing the context number to 64bits. This way even when
userspace manages to allocate a billion contexts per second it takes more
than 500 years for the context number to wrap around.

v2: fix printf formats as well.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Acked-by: Sumit Semwal <sumit.semwal@linaro.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1464786612-5010-2-git-send-email-deathsimple@vodafone.de
2016-06-02 08:27:41 +02:00
Daniel Vetter
9f4eebd73a drm/qxl: Use lockless gem BO free callback
No dev->struct_mutex anywhere to be seen.

Cc: Dave Airlie <airlied@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1464630800-30786-10-git-send-email-daniel.vetter@ffwll.ch
2016-06-01 09:40:42 +02:00
Daniel Vetter
0eef29d750 drm/qxl: Don't set a gamma table size
qxl doesn't have any functions for setting the gamma table, so this is
completely defunct.

Not nice to lie to userspace, so let's stop!

Cc: Dave Airlie <airlied@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1459331485-28376-10-git-send-email-daniel.vetter@ffwll.ch
2016-05-31 15:26:57 +02:00
Gerd Hoffmann
2d6b1d403e qxl: catch qxlfb_create_pinned_object failures
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1463072816-11788-1-git-send-email-kraxel@redhat.com
2016-05-17 09:11:23 +02:00
Chris Wilson
a8ad0bd84f drm: Remove unused drm_device from drm_gem_object_lookup()
drm_gem_object_lookup() has never required the drm_device for its file
local translation of the user handle to the GEM object. Let's remove the
unused parameter and save some space.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: dri-devel@lists.freedesktop.org
Cc: Dave Airlie <airlied@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
[danvet: Fixup kerneldoc too.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-05-17 08:47:30 +02:00
Dave Airlie
bafb86f5bc Linux 4.6-rc7
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJXL7HfAAoJEHm+PkMAQRiGYe8IAJBGaPUq38EJh2YOV+AQf9v6
 t/alhwB3DUE1E0zjLy7I7JJ+xDXtKjZh9fS6OFuIS8Q3RIrBteIJ/oH8TPpt7yZ/
 SnP6rYPvYD6CImTyrh7+ORL/udEwJX8+YqFYAgUAq167gvpDjYj8r26VzdIaIN4/
 oBbL8NrQNWfODieywYyhUoitVhwMz09zmBfLtGVks4vd2jUJk2Fdd9cOtGV5tRfk
 DPndPgyQtbr8W0mKovV8sT9WkQeV5TsUr4MLgf7hjnAGYQ8+0KamkzzVVLBeBiiw
 uazyrOCFkddZp+N7KbmbOmazV/yULRuLGgDjVKazoCsOaKOvoGCzrCk7daOPy6Q=
 =CegX
 -----END PGP SIGNATURE-----

Merge tag 'v4.6-rc7' into drm-next

Merge this back as we've built up a fair few conflicts, and I have
some newer trees to pull in.
2016-05-09 13:49:56 +10:00
Dave Airlie
a64424d722 Merge branch 'drm-next-4.7' of git://people.freedesktop.org/~agd5f/linux into drm-next
This is the first big radeon/amdgpu pull request for 4.7.  Highlights:
    - Polaris support in amdgpu
      Current display stack on par with other asics, for advanced features DAL is required
      Power management support
      Support for GFX, Compute, SDMA, UVD, VCE
    - VCE and UVD init/fini cleanup in radeon
    - GPUVM improvements
    - Scheduler improvements
    - Clockgating improvements
    - Powerplay improvements
    - TTM changes to support driver specific LRU update mechanism
    - Radeon support for new Mesa features
    - ASYNC pageflip support for radeon
    - Lots of bug fixes and code cleanups

* 'drm-next-4.7' of git://people.freedesktop.org/~agd5f/linux: (180 commits)
  drm/amdgpu: Replace rcu_assign_pointer() with RCU_INIT_POINTER()
  drm/amdgpu: use drm_mode_vrefresh() rather than mode->vrefresh
  drm/amdgpu/uvd6: add bypass support for fiji (v3)
  drm/amdgpu/fiji: set UVD CG state when enabling UVD DPM (v2)
  drm/powerplay: add missing clockgating callback for tonga
  drm/amdgpu: Constify some tables
  drm/amd/powerplay: Delete dead struct declaration
  drm/amd/powerplay/hwmgr: don't add invalid voltage
  drm/amd/powerplay/hwmgr: prevent VDDC from exceeding 2V
  MAINTAINERS: Remove unneded wildcard for the Radeon/AMDGPU drivers
  drm/radeon: add cayman VM support for append packet.
  drm/amd/amdgpu: Add debugfs entries for smc/didt/pcie
  drm/amd/amdgpu: Drop print_status callbacks.
  drm/amd/powerplay: revise reading/writing pptable on Polaris10
  drm/amd/powerplay: revise reading/writing pptable on Tonga
  drm/amd/powerplay: revise reading/writing pptable on Fiji
  drm/amd/powerplay: revise caching the soft pptable and add it's size
  drm/amd/powerplay: add dpm force multiple levels on cz/tonga/fiji/polaris (v2)
  drm/amd/powerplay: fix fan speed percent setting error on Polaris10
  drm/amd/powerplay: fix bug dpm can't work when resume back on Polaris
  ...
2016-05-06 14:17:22 +10:00
Christian König
98c2872ae9 drm/ttm: implement LRU add callbacks v2
This allows fine grained control for the driver where to add a BO into the LRU.

v2: fix typo in comment

Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-05-04 20:21:38 -04:00
Christian König
8aa6d4fc5f drm/ttm: remove lazy parameter from ttm_bo_wait
Not used any more.

Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-05-04 20:21:26 -04:00
Christian König
dfd5e50ea4 drm/ttm: remove use_ticket parameter from ttm_bo_reserve
Not used any more.

Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-05-04 20:21:21 -04:00
Noralf Trønnes
6819c3c251 drm/qxl: Use drm_fb_helper deferred_io support
Use the fbdev deferred io support in drm_fb_helper which mirrors the
one qxl has had.
This patch has only been compile tested.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Tested-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1461856717-6476-7-git-send-email-noralf@tronnes.org
2016-05-02 16:25:13 +02:00
Noralf Trønnes
2b5e8e579b drm/qxl: Change drm_fb_helper_sys_*() calls to sys_*()
Now that drm_fb_helper gets deferred io support, the
drm_fb_helper_sys_{fillrect,copyarea,imageblit} functions will schedule
a worker that will call the (struct drm_framebuffer *)->funcs->dirty()
function. This will break this driver so use the
sys_{fillrect,copyarea,imageblit} functions directly.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1461856717-6476-3-git-send-email-noralf@tronnes.org
2016-05-02 16:21:46 +02:00
Daniel Vetter
068149ad22 drm/qxl: Use unlocked gem unreferencing
For drm_gem_object_unreference callers are required to hold
dev->struct_mutex, which these paths don't. Enforcing this requirement
has become a bit more strict with

commit ef4c6270bf
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Thu Oct 15 09:36:25 2015 +0200

    drm/gem: Check locking in drm_gem_object_unreference

Cc: Dave Airlie <airlied@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1459330852-27668-4-git-send-email-daniel.vetter@ffwll.ch
Link: http://patchwork.freedesktop.org/patch/msgid/1459330852-27668-5-git-send-email-daniel.vetter@ffwll.ch
2016-04-20 12:55:22 +02:00
Dave Airlie
e7c8e54440 Merge tag 'topic/drm-misc-2016-04-01' of git://anongit.freedesktop.org/drm-intel into drm-next
* tag 'topic/drm-misc-2016-04-01' of git://anongit.freedesktop.org/drm-intel:
  drm: Add new DCS commands in the enum list
  drm: Make uapi headers C89 pendantic compliant
  drm/atomic: export drm_atomic_helper_wait_for_fences()
  drm: Untangle __KERNEL__ guards
  drm: Move DRM_MODE_OBJECT_* to uapi headers
  drm: align #include directives with libdrm in uapi headers
  drm: Make drm.h uapi header safe for C++
  vgacon: dummy implementation for vgacon_text_force
  drm/sysfs: Nuke TV/DVI property files
  drm/ttm: Remove TTM_HAS_AGP
  drm: bridge/dw-hdmi: Remove pre_enable/post_disable dummy funcs
  Revert "drm: Don't pass negative delta to ktime_sub_ns()"
  drm/atmel: Fixup drm_connector_/unplug/unregister/_all
  drm: Rename drm_connector_unplug_all() to drm_connector_unregister_all()
  drm: bridge: Make (pre/post) enable/disable callbacks optional
2016-04-06 09:39:01 +10:00
John Keeping
d59a1f71ff drm/qxl: fix cursor position with non-zero hotspot
The SPICE protocol considers the position of a cursor to be the location
of its active pixel on the display, so the cursor is drawn with its
top-left corner at "(x - hot_spot_x, y - hot_spot_y)" but the DRM cursor
position gives the location where the top-left corner should be drawn,
with the hotspot being a hint for drivers that need it.

This fixes the location of the window resize cursors when using Fluxbox
with the QXL DRM driver and both the QXL and modesetting X drivers.

Signed-off-by: John Keeping <john@metanate.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: stable@vger.kernel.org
Link: http://patchwork.freedesktop.org/patch/msgid/1447845445-2116-1-git-send-email-john@metanate.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2016-03-31 11:09:33 +03:00
Daniel Vetter
44debe7a12 vgacon: dummy implementation for vgacon_text_force
This allows us to ditch a ton of ugly #ifdefs from a bunch of drm modeset
drivers.

v2: Make the dummy function actually return a sane value, spotted by
Ville.

v3: Because the patch is still in limbo there's no more drivers to
convert, noticed by Emil.

v4: Rebase once more, because hooray. I'll just go ahead an apply this
one later on to drm-misc.

Cc: Emil Velikov <emil.l.velikov@gmail.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-03-30 17:37:57 +02:00
Dave Airlie
9b61c0fcdf Merge drm-fixes into drm-next.
Nouveau wanted this to avoid some worse conflicts when I merge that.
2016-03-14 09:46:02 +10:00
Anton Protopopov
dada168b3b drm/qxl: fix erroneous return value
The qxl_gem_prime_mmap() function returns ENOSYS instead of -ENOSYS

Signed-off-by: Anton Protopopov <a.s.protopopov@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-02-17 15:39:35 +10:00
Gerd Hoffmann
34855706c3 drm/qxl: use kmalloc_array to alloc reloc_info in qxl_process_single_command
This avoids integer overflows on 32bit machines when calculating
reloc_info size, as reported by Alan Cox.

Cc: stable@vger.kernel.org
Cc: gnomes@lxorguk.ukuu.org.uk
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-02-17 14:16:06 +10:00
Carlos Palminha
4a71396012 drm/qxl: removed optional dummy encoder mode_fixup function.
mode_fixup function for encoder drivers became optional with patch
http://patchwork.freedesktop.org/patch/msgid/1455106522-32307-1-git-send-email-palminha@synopsys.com

This patch set nukes all the dummy mode_fixup implementations.

(made on top of Daniel topic/drm-misc branch)

Signed-off-by: Carlos Palminha <palminha@synopsys.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/f35bc322f7af69ba0fea734d58b4daf5e0cd9786.1455540137.git.palminha@synopsys.com
2016-02-16 15:34:00 +01:00
Frediano Ziglio
3ebf1c6dc9 drm/qxl: use to_qxl_bo macro
Instead of using container_of directly use to_qxl_bo macro.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1450178476-26284-9-git-send-email-boris.brezillon@free-electrons.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-12-15 13:39:40 +01:00
Ville Syrjälä
6af3e65612 drm: Drop drm_helper_probe_single_connector_modes_nomerge()
Now that the mode type bit merge logic is fixed to only merge
between new probed modes, hopefully we can eliminat the special
case for qxl and virtio. That is make the merge the mode type
bits from all matching new probed modes, just like every other
driver.

qxl and virtio got excluded from the merging in
commit 3fbd6439e4 ("drm: copy mode type in drm_mode_connector_list_update()")
commit abce1ec9b0 ("Revert "drm: copy mode type in drm_mode_connector_list_update()"")
commit b87577b7c7 ("drm: try harder to avoid regression when merging mode bits")

Cc: Marc-André Lureau <marcandre.lureau@redhat.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Adam Jackson <ajax@redhat.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
[danvet: Resolve conflicts with doc updates.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-12-11 09:32:53 +01:00
Ville Syrjälä
13a3d91f17 drm: Pass 'name' to drm_encoder_init()
Done with coccinelle for the most part. However, it thinks '...' is
part of the semantic patch, so I put an 'int DOTDOTDOT' placeholder
in its place and got rid of it with sed afterwards.

@@
identifier dev, encoder, funcs;
@@
 int drm_encoder_init(struct drm_device *dev,
                      struct drm_encoder *encoder,
                      const struct drm_encoder_funcs *funcs,
                      int encoder_type
+                     ,const char *name, int DOTDOTDOT
                      )
{ ... }

@@
identifier dev, encoder, funcs;
@@
 int drm_encoder_init(struct drm_device *dev,
                      struct drm_encoder *encoder,
                      const struct drm_encoder_funcs *funcs,
                      int encoder_type
+                     ,const char *name, int DOTDOTDOT
                      );

@@
expression E1, E2, E3, E4;
@@
 drm_encoder_init(E1, E2, E3, E4
+                 ,NULL
                  )

v2: Add ', or NULL...' to @name kernel doc (Jani)
    Annotate the function with __printf() attribute (Jani)

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1449670818-2966-1-git-send-email-ville.syrjala@linux.intel.com
2015-12-11 09:13:20 +01:00
Daniel Vetter
2ed1e42af4 drm/qxl: Drop dummy save/restore hooks
These hooks will be gone soon.

Cc: Dave Airlie <airlied@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1449218769-16577-10-git-send-email-daniel.vetter@ffwll.ch
Reviewed-by: Thierry Reding <treding@nvidia.com>
2015-12-08 16:07:54 +01:00
Ville Syrjälä
1eb83451ba drm: Pass the user drm_mode_fb_cmd2 as const to .fb_create()
Drivers shouldn't clobber the passed in addfb ioctl parameters.
i915 was doing just that. To prevent it from happening again,
pass the struct around as const, starting all the way from
internal_framebuffer_create().

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-11-24 11:47:38 +01:00
Lukas Wunner
cb1197173f drm: Remove unused fbdev_list members
I noticed that intel_fbdev->our_mode is unused. Introduced by
79e539453b ("DRM: i915: add mode setting support").

Then I noticed that intel_fbdev->fbdev_list is unused as well.
Introduced by 386516744b ("drm/fb: fix fbdev object model +
cleanup properly.") in i915, nouveau and radeon.

Subsequently cargo culted to amdgpu, ast, cirrus, qxl, udl,
virtio and mgag200.

Already removed from the latter with cc59487a05 ("drm/mgag200:
'fbdev_list' in 'struct mga_fbdev' is not used").

Remove it from the others.

Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-11-24 11:41:52 +01:00
Dave Airlie
affa0e033b Merge tag 'topic/drm-misc-2015-10-19' of git://anongit.freedesktop.org/drm-intel into drm-next
More drm-misc for 4.4.
- fb refcount fix in atomic fbdev
- various locking reworks to reduce drm_global_mutex and dev->struct_mutex
- rename docbook to gpu.tmpl and include vga_switcheroo stuff, plus more
  vga_switcheroo (Lukas Wunner)
- viewport check fixes for atomic drivers from Ville
- DRM_DEBUG_VBL from Ville
- non-contentious header fixes from Mikko Rapeli
- small things all over

* tag 'topic/drm-misc-2015-10-19' of git://anongit.freedesktop.org/drm-intel: (31 commits)
  drm/fb-helper: Fix fb refcounting in pan_display_atomic
  drm/fb-helper: Set plane rotation directly
  drm: fix mutex leak in drm_dp_get_mst_branch_device
  drm: Check plane src coordinates correctly during page flip for atomic drivers
  drm: Check crtc viewport correctly with rotated primary plane on atomic drivers
  drm: Refactor plane src coordinate checks
  drm: Swap w/h when converting the mode to src coordidates for a rotated primary plane
  drm: Don't leak fb when plane crtc coodinates are bad
  ALSA: hda - Spell vga_switcheroo consistently
  drm/gem: Use kref_get_unless_zero for the weak mmap references
  drm/vgem: Drop vgem_drm_gem_mmap
  drm: Fix return value of drm_framebuffer_init()
  drm/gem: Use container_of in drm_gem_object_free
  drm/gem: Check locking in drm_gem_object_unreference
  drm/gem: Drop struct_mutex requirement from drm_gem_mmap_obj
  drm/i810_drm.h: include drm/drm.h
  r128_drm.h: include drm/drm.h
  savage_drm.h: include <drm/drm.h>
  gpu/doc: Convert to markdown harder
  gpu/doc: Add vga_switcheroo documentation
  ...
2015-10-20 09:01:49 +10:00
Daniel Vetter
f8c47144bf drm/<drivers>: Drop DRM_UNLOCKED from modeset drivers
Just one special case (since i915 lost its ums code, yay):
- radeon: Has slots for the old ums ioctls which don't have
  DRM_UNLOCKED, but all filled with drm_invalid_op. So ok to drop it
  everywhere.

Every other kms driver just has DRM_UNLOCKED for all their ioctls, as
they should.

v2: admgpu happened, include that one too. And i915 lost its UMS
support which means we can change all the i915 ioctls too.

v3: Rebased on top of new vmwgfx DX interface extensions.

v4: Rebase on top of render-node support in exynos.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-10-16 15:50:54 +02:00
Dave Airlie
48f87dd146 Merge commit '06d1ee32a4d25356a710b49d5e95dbdd68bdf505' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into drm-next
Backmerge the drm-fixes pull from Linus's tree into drm-next.

This is to fix some conflicts and make future pulls cleaner
2015-10-16 10:25:28 +10:00
Frediano Ziglio
266424b537 drm/qxl: avoid dependency lock
qxl_bo_unref calls drm_gem_object_unreference_unlocked which
locks dev->struct_mutex. However this lock could be already
locked if the call came from qxl_gem_object_free.
As we don't need to call qxl_bo_ref/qxl_bo_unref cause
qxl_release_list_add will hold a reference by itself avoid
to call them and the possible deadlock.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-10-07 15:33:45 +10:00
Frediano Ziglio
7eb9974f36 drm/qxl: avoid buffer reservation in qxl_crtc_page_flip
This avoid a dependency lock error.
According to https://lwn.net/Articles/548909/ users of WW mutex API
should avoid using different context.
When a buffer is reserved with qxl_bo_reserve a ww_mutex_lock without
context is used. However during qxl_draw_dirty_fb different locks
with specific context are used.
This is detected during a machine booting with a debug kernel with lock
dependency checking enabled.
Like many other function in this file to avoid this problem object
pinning is used. Once the object is pinned is not necessary to keep
the lock so it can be released avoiding the locking problem.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-10-07 15:33:06 +10:00
Gerd Hoffmann
60906529be drm/qxl: fix framebuffer dirty rectangle tracking.
Commit "c0fe07a drm/qxl: rewrite framebuffer support" has a bug in the
dirty rectangle tracking:  Instead of ignoring an empty dirty rectangle
when adding a new dirty region the dirty region gets extended to the
upper left corner.  Fix it.

Cc: linux-stable@vger.kernel.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-10-07 15:31:45 +10:00
Thierry Reding
88e72717c2 drm/irq: Use unsigned int pipe in public API
This continues the pattern started in commit cc1ef118fc ("drm/irq:
Make pipe unsigned and name consistent"). This is applied to the public
APIs and driver callbacks, so pretty much all drivers need to be updated
to match the new prototypes.

Cc: Christian König <christian.koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Inki Dae <inki.dae@samsung.com>
Cc: Jianwei Wang <jianwei.wang.chn@gmail.com>
Cc: Alison Wang <alison.wang@freescale.com>
Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Mark Yao <mark.yao@rock-chips.com>
Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Cc: Vincent Abriou <vincent.abriou@st.com>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-10-06 12:57:47 +02:00
Fabiano Fidêncio
8d0d94015e drm/qxl: recreate the primary surface when the bo is not primary
When disabling/enabling a crtc the primary area must be updated
independently of which crtc has been disabled/enabled.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1264735

Signed-off-by: Fabiano Fidêncio <fidencio@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-10-01 13:57:21 +10:00
Dave Airlie
69e5d3f893 drm/qxl: only report first monitor as connected if we have no state
If the server isn't new enough to give us state, report the first
monitor as always connected, otherwise believe the server side.

Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-09-24 08:08:17 +10:00
Jonathon Jongsma
bd3e1c7c6d drm/qxl: validate monitors config modes
Due to some recent changes in
drm_helper_probe_single_connector_modes_merge_bits(), old custom modes
were not being pruned properly. In current kernels,
drm_mode_validate_basic() is called to sanity-check each mode in the
list. If the sanity-check passes, the mode's status gets set to to
MODE_OK. In older kernels this check was not done, so old custom modes
would still have a status of MODE_UNVERIFIED at this point, and would
therefore be pruned later in the function.

As a result of this new behavior, the list of modes for a device always
includes every custom mode ever configured for the device, with the
largest one listed first. Since desktop environments usually choose the
first preferred mode when a hotplug event is emitted, this had the
result of making it very difficult for the user to reduce the size of
the display.

The qxl driver did implement the mode_valid connector function, but it
was empty. In order to restore the old behavior where old custom modes
are pruned, we implement a proper mode_valid function for the qxl
driver. This function now checks each mode against the last configured
custom mode and the list of standard modes. If the mode doesn't match
any of these, its status is set to MODE_BAD so that it will be pruned as
expected.

Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-09-11 10:51:33 +10:00
Daniel Vetter
2143287d4e drm/qxl: Don't take dev->struct_mutex in bo_force_delete
It really doesn't protect anything which doesn't have other locks
already. It also doesn't seem to be wired up into the driver unload
code fwiw, but that's a different issue.

Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2015-08-11 12:04:16 +02:00
Archit Taneja
e7cd84cf7d drm/qxl: Use new drm_fb_helper functions
Use the newly created wrapper drm_fb_helper functions instead of calling
core fbdev functions directly. They also simplify the fb_info creation.

Cc: David Airlie <airlied@linux.ie>
Cc: Frediano Ziglio <fziglio@redhat.com>
Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com>

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-08-06 14:12:59 +02:00
Frediano Ziglio
ef13169610 drm/qxl: Propagate correctly errors from qxlhw_handle_to_bo
This function could return a NULL pointer in case of handle not
present and in case of out of memory conditions however caller
function always returned EINVAL error hiding a possible ENOMEM.
This patch change the function to return the error instead to
be able to propagate the error instead of assuming EINVAL.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-06-05 11:00:52 +10:00
Frediano Ziglio
74d9a6335d drm/qxl: Simplify cleaning qxl processing command
In qxlhw_handle_to_bo we incremented counters twice, one time for release object
and one for reloc_info.
In the main function however reloc_info references was drop much earlier than
release so keeping the pointer only on release is safe and make cleaning
process easier.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-06-05 11:00:52 +10:00
Frediano Ziglio
e07154e28c drm/qxl: Move main reference counter to GEM object instead of TTM ones
qxl_bo structure has two reference counters, one in the GEM object and
another in the TTM object. The GEM object keep a counter to the TTM object
so when GEM counter reached zero the TTM counter (using qxl_bo_unref) was
decremented. The qxl object is fully freed (both GEM and TTM part are cleaned)
when the TTM counter reach zero.
One issue was that surface idr structure has no owning on qxl_bo objects however
it contains a pointer to qxl_bo object. This caused some nasty race condition
for instance qxl_bo object was reaped even after counter was already zero.
This patch fix these races moving main counter (the one used by qxl_bo_(un)ref)
to GEM object which cleanup routine (qxl_gem_object_free) remove the idr pointer
(using qxl_surface_evict) when the counters are still valid.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-06-05 11:00:51 +10:00
Frediano Ziglio
72ec5650a8 drm/qxl: Remove format string errors
Enable format string checks for qxl_io_log and remove resulting warnings
which could lead to memory errors on different platform or just printing
wrong information.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-06-05 11:00:51 +10:00
Frediano Ziglio
de0b523a5a drm/qxl: Handle correctly failures in qxl_alloc_relase_reserved
Free resources correctly if function fails

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-06-05 11:00:50 +10:00
Frediano Ziglio
6ecf5c2b57 drm/qxl: Fix return for qxl_release_alloc
This function return handle to allocated release object which is an int.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-06-05 11:00:50 +10:00
Frediano Ziglio
c610c7137c drm/qxl: Handle all errors in qxl_surface_evict
Only EBUSY error was handled. This could cause code to believe
reserve was successful while it failed.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-06-05 11:00:49 +10:00
Frediano Ziglio
fe2af53bae drm/qxl: Avoid double free on error
Is we are not able to get source bo object from handle we free
destination bo object and call cleanup code however destination
object was already inserted in reloc_info array (num_relocs was
already incremented) so on cleanup we free destination again.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-06-05 11:00:49 +10:00
Frediano Ziglio
55cc3df08a drm/qxl: Fix print statement not using uninitialized variable
reloc_info[i] is not still initialized in the print statement.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-06-05 11:00:47 +10:00
Frediano Ziglio
8451cc964c drm/qxl: Do not leak memory if qxl_release_list_add fails
If the function fails reference counter to the object is not decremented
causing leaks.
This is hard to spot as it happens only on very low memory situations.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Cc: stable@vger.kernel.org
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-06-05 11:00:37 +10:00
Frediano Ziglio
2fa19535ca drm/qxl: Do not cause spice-server to clean our objects
If objects are moved back from system memory to VRAM (and spice id
created again) memory is already initialized so we need to set flag
to not clear memory.
If you don't do it after a while using desktop many images turns to
black or transparents.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Cc: stable@vger.kernel.org
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-06-05 11:00:27 +10:00
Gerd Hoffmann
c0fe07aa50 drm/qxl: rewrite framebuffer support
Completely different approach:  Instead of encoding each and every
framebuffer update as spice operation simply update the shadow
framebuffer and maintain a dirty rectangle.  Also schedule a worker
to push an update for the dirty rectangle as spice operation.  Usually
a bunch of dirty rectangle updates are collected before the worker
actually runs.

What changes:  Updates get batched now.  Instead of sending tons of
small updates a few large ones are sent.  When the same region is
updated multiple times within a short timeframe (scrolling multiple
lines for example) we send a single update only.  Spice server has an
easier job now:  The dependency tree for display operations which spice
server maintains for lazy rendering is alot smaller now.  Spice server's
image compression probably works better too with the larger image blits.

Net effect:  framebuffer console @ qxldrmfb is an order of magnitude
faster now.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-05-07 13:09:25 +10:00
Mario Kleiner
337eb43c8d drm/qxl: Fix qxl_noop_get_vblank_counter()
This breaks under the vblank timestamp cleanup patch
by Daniel Vetter. Also it is pointless to return anything
but zero (or any other constant) if the function doesn't
actually query a hw vblank counter. The bogus return of
the current drm vblank counter via direct readout or via
drm_vblank_count() is found in many of the new kms drivers,
but it does exactly nothing different from returning any
arbitrary constant - it's a no operation.

Let's simply return 0 - Easy and fast.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Cc: Dave Airlie <airlied@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-05-04 11:14:55 +02:00
Jani Nikula
71279a1138 drm/qxl: constify all struct drm_*_helper funcs pointers
They are not to be modified.

Generated using the semantic patch:

@@
@@
(
  const struct drm_crtc_helper_funcs *
|
- struct drm_crtc_helper_funcs *
+ const struct drm_crtc_helper_funcs *
)

@@
@@
(
  const struct drm_encoder_helper_funcs *
|
- struct drm_encoder_helper_funcs *
+ const struct drm_encoder_helper_funcs *
)

@@
@@
(
  const struct drm_connector_helper_funcs *
|
- struct drm_connector_helper_funcs *
+ const struct drm_connector_helper_funcs *
)

@@
@@
(
  const struct drm_plane_helper_funcs *
|
- struct drm_plane_helper_funcs *
+ const struct drm_plane_helper_funcs *
)

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-07 18:11:24 +02:00
Thierry Reding
01934c2a69 drm/fb-helper: Propagate errors from initial config failure
Make drm_fb_helper_initial_config() return an int rather than a bool so
that the error can be properly propagated. While at it, update drivers
to propagate errors further rather than just ignore them.

v2:
- cirrus: No cleanup is required, the top-level cirrus_driver_load()
  will do it as part of cirrus_driver_unload() in its cleanup path.
  Reported-by: Fengguang Wu <fengguang.wu@intel.com>

Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
[danvet: Squash in simplification patch from kbuild.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-01-21 14:57:03 +01:00
Christian König
aa35071c59 drm/ttm: optionally move duplicates to a separate list
This patch adds an optional list_head parameter to ttm_eu_reserve_buffers.
If specified duplicates in the execbuf list are no longer reported as errors,
but moved to this list instead.

Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2014-12-03 18:26:52 -05:00
Dave Airlie
967b8e04d7 drm/qxl: drop unused mode private pointer
This was pointless, forgot to remove the code.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-11-15 10:15:30 +10:00
Dave Airlie
7dea0941f8 drm/qxl: use suggested x/y offset properties to pass guest prefs
This passes the guest preferences for a where to place the
outputs through to userspace. Userspace would need to be updated
to take note of this information, X server and GNOME.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-11-15 09:47:48 +10:00
Daniel Vetter
3cb9ae4fd8 drm: Move drm_crtc_init from drm_crtc.h to drm_plane_helper.h
Just a bit of OCD cleanup on headers - this function isn't the core
interface any more but just a helper for drivers who haven't yet
transitioned to universal planes. Put the declaration at the right
spot and sprinkle necessary #includes over all drivers.

Maybe this helps to encourage driver maintainers to do the switch.

v2: Fix #include ordering for tegra, reported by 0-day builder.

v3: Include required headers, reported by Thierry.

Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Thierry Reding <treding@nvidia.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2014-11-05 00:14:55 +01:00
Marc-André Lureau
c572aaf46f qxl: don't create too large primary surface
Limit primary to qemu vgamem size, to avoid reaching
qemu guest bug "requested primary larger than framebuffer"
on resizing screen too large to fit.

Remove unneeded and misleading variables.

Related to:
https://bugzilla.redhat.com/show_bug.cgi?id=1127552

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-10-22 11:11:50 +10:00
Dave Airlie
7a42e83d36 Merge branch 'for-airlied-next' of git://people.freedesktop.org/~mlankhorst/linux into drm-next
fixups for nouveau and fencing

* 'for-airlied-next' of git://people.freedesktop.org/~mlankhorst/linux:
  drm/nouveau: export reservation_object from dmabuf to ttm
  drm/ttm: add reservation_object as argument to ttm_bo_init
  drm: Pass dma-buf as argument to gem_prime_import_sg_table
  drm/nouveau: assign fence_chan->name correctly
  drm/nouveau: specify if interruptible wait is desired in nouveau_fence_sync
  drm/nouveau: bump driver patchlevel to 1.2.1
2014-10-01 19:27:38 +10:00
Maarten Lankhorst
f4f4e3e3e9 drm/ttm: add reservation_object as argument to ttm_bo_init
This allows importing reservation objects from dma-bufs.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
2014-09-30 14:04:00 +02:00
Maarten Lankhorst
b5e9c1a25f drm: Pass dma-buf as argument to gem_prime_import_sg_table
Allows importing dma_reservation_objects from a dma-buf.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
2014-09-30 14:04:00 +02:00
Fabian Frederick
f38e34ac54 drm/qxl: use container_of to resolve qxl_fbdev from drm_fb_helper
Use container_of instead of casting first structure member.

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-24 12:09:26 +02:00
Daniel Vetter
d9fc9413f9 drm: Extract <drm/drm_gem.h>
v2: Don't forget git add, noticed by David.

Cc: David Herrmann <dh.herrmann@gmail.com>

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Acked-by: David Herrmann <dh.herrmann@gmail.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-09-24 11:43:41 +10:00
Daniel Vetter
884c6dabb0 drm/<ttm-based-drivers>: Don't call drm_mmap
Really, the legacy buffer api should be dead, especially for all these
newfangled drivers. I suspect this is copypasta from the transitioning
days, which probably originated in radeon.

Cc: "Christian König" <christian.koenig@amd.com>
Cc: David Herrmann <dh.herrmann@gmail.com>
Cc: Rashika <rashika.kheria@gmail.com>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Fabian Frederick <fabf@skynet.be>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Alexandre Courbot <acourbot@nvidia.com>
Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Cc: Christian Engelmayer <cengelma@gmx.at>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Acked-by: Ben Skeggs <bskeggs@redhat.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-09-24 11:42:51 +10:00
Christian König
ae9c0af2c0 drm/ttm: allow fence to be added as shared
This patch adds a new flag to the ttm_validate_buffer list to
add the fence as shared to the reservation object.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2014-09-11 10:46:00 -04:00
David Herrmann
915b4d11b8 drm: add driver->set_busid() callback
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 <dh.herrmann@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-09-10 17:43:04 +10:00
Maarten Lankhorst
58b21c22c6 drm/qxl: Fix crash in eviction from qxl_release_fence_buffer_objects
This crash was already here before the conversion, but qxl never leaked
hard enough to hit this.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
2014-09-03 17:09:13 +02:00
Maarten Lankhorst
b75402c9f9 drm/qxl: fix gaping memory hole
This is how you implement a memory sieve in a driver. ;-)

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
2014-09-03 17:09:12 +02:00
Maarten Lankhorst
d7e4d67136 drm/qxl: Remove release_lock stupidity
The locking of release_lock was stupid; t should have been be called with
fence_lock_irq if it was legitimately used. Unfortunately it never protected
anything except the fence implementation correctly.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
2014-09-03 17:09:11 +02:00
Andreas Pokorny
47c1296829 drm/qxl: enables gem prime helpers for qxl using dummy driver callbacks
As there should not be any other virtual device that might share buffers,
the callbacks remain empty stubs. Still prime can be used to transfer buffers
between processes that use qxl.

Signed-off-by: Andreas Pokorny <andreas.pokorny@canonical.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-09-03 15:36:52 +10:00
Andreas Pokorny
058e9f5c82 drm/qxl: simple crtc page flipping emulated using buffer copy
Signed-off-by: Andreas Pokorny <andreas.pokorny@canonical.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-09-03 15:35:27 +10:00
Maarten Lankhorst
f2c24b83ae drm/ttm: flip the switch, and convert to dma_fence
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
2014-09-02 16:41:50 +02:00
Maarten Lankhorst
2f453ed403 drm/qxl: rework to new fence interface
Final driver! \o/

This is not a proper dma_fence because the hardware may never signal
anything, so don't use dma-buf with qxl, ever.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
2014-09-02 16:41:50 +02:00
Maarten Lankhorst
1f0dc9a59a drm/ttm: kill off some members to ttm_validate_buffer
This reorders the list to keep track of what buffers are reserved,
so previous members are always unreserved.

This gets rid of some bookkeeping that's no longer needed,
while simplifying the code some.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
2014-09-01 10:18:03 +02:00
Maarten Lankhorst
58b4d720c1 drm/ttm: add interruptible parameter to ttm_eu_reserve_buffers
It seems some drivers really want this as a parameter,
like vmwgfx.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
2014-09-01 10:16:43 +02:00
Maarten Lankhorst
dd7cfd6412 drm/ttm: kill fence_lock
No users are left, kill it off! :D
Conversion to the reservation api is next on the list, after
that the functionality can be restored with rcu.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
2014-09-01 10:16:43 +02:00
Christian König
f1217ed09f drm/ttm: move fpfn and lpfn into each placement v2
This allows us to more fine grained specify where to place the buffer object.

v2: rebased on drm-next, add bochs changes as well

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2014-08-27 13:16:04 +02:00
Benoit Taine
9baa3c34ac PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use
We should prefer `struct pci_device_id` over `DEFINE_PCI_DEVICE_TABLE` to
meet kernel coding style guidelines.  This issue was reported by checkpatch.

A simplified version of the semantic patch that makes this change is as
follows (http://coccinelle.lip6.fr/):

// <smpl>

@@
identifier i;
declarer name DEFINE_PCI_DEVICE_TABLE;
initializer z;
@@

- DEFINE_PCI_DEVICE_TABLE(i)
+ const struct pci_device_id i[]
= z;

// </smpl>

[bhelgaas: add semantic patch]
Signed-off-by: Benoit Taine <benoit.taine@lip6.fr>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-08-12 12:15:14 -06:00
Dave Airlie
5d42f82a9b Linux 3.16
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJT3rbVAAoJEHm+PkMAQRiGBc0H/0PcAqZ66KqBrjCaC7tlR9ZJ
 Oyv4usrPpVmJaCaYiNwc4KnkJXDfc/foEtZq32vYSb4d8xaOLta3DrT8YJTS7B7T
 Afdg8FbVdSjBD0S8It35XidmZlOaVrgGJGpDIRBRrqDwPPgbWpTeUR73bfkwoA/R
 ziW+78s0mquo9hN9Bdu3apr7XxVmzeIUx6lJxKPCoXNEGTsSC7ibCzZRzZDMpag/
 D1JrQbE0XevgEu5fWrJkcqKceUzi3I1wuKZvBIJm2aX5XDsKpYNfQL6ViJDW56dK
 LhrB8vex8gkQYSCVPyUKx4BjkdPourSICSKq+h0SwhOCpHVHPmG8XM3J4/U4a7U=
 =yoNZ
 -----END PGP SIGNATURE-----

Merge tag 'v3.16' into drm-next

Linux 3.16

backmerge requested by i915, nouveau and radeon authors

Conflicts:
	drivers/gpu/drm/i915/i915_gem_render_state.c
	drivers/gpu/drm/i915/intel_drv.h
2014-08-05 09:04:59 +10:00
Thierry Reding
ee3939e079 drm/ttm: Fix a few sparse warnings
The final parameter to ttm_bo_reserve() is a pointer, therefore callers
should use NULL instead of 0.

Fixes a bunch of sparse warnings of this type:

	warning: Using plain integer as NULL pointer

Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-07-22 10:58:21 +10:00
Jason Wang
fbb60fe35a drm/qxl: return IRQ_NONE if it was not our irq
Return IRQ_NONE if it was not our irq. This is necessary for the case
when qxl is sharing irq line with a device A in a crash kernel. If qxl
is initialized before A and A's irq was raised during this gap,
returning IRQ_HANDLED in this case will cause this irq to be raised
again after EOI since kernel think it was handled but in fact it was
not.

Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-07-17 08:08:06 +10:00