2008-11-07 22:05:41 +00:00
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/*
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* Copyright (c) 2006-2008 Intel Corporation
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* Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
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* Copyright (c) 2008 Red Hat Inc.
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*
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* DRM core CRTC related functions
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that copyright
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* notice and this permission notice appear in supporting documentation, and
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* that the name of the copyright holders not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. The copyright holders make no representations
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* about the suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*
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* Authors:
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* Keith Packard
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* Eric Anholt <eric@anholt.net>
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* Dave Airlie <airlied@linux.ie>
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* Jesse Barnes <jesse.barnes@intel.com>
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*/
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2013-06-10 08:15:10 +00:00
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#include <linux/ctype.h>
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2008-11-07 22:05:41 +00:00
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#include <linux/list.h>
|
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.
percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.
http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.
* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.
* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.
The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.
2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.
3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.
4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.
5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.
6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).
* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig
8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.
Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 08:04:11 +00:00
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|
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#include <linux/slab.h>
|
2011-08-30 22:16:33 +00:00
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#include <linux/export.h>
|
2012-10-02 17:01:07 +00:00
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#include <drm/drmP.h>
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#include <drm/drm_crtc.h>
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#include <drm/drm_edid.h>
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#include <drm/drm_fourcc.h>
|
2013-11-19 17:10:12 +00:00
|
|
|
#include <drm/drm_modeset_lock.h>
|
2014-12-18 21:01:50 +00:00
|
|
|
#include <drm/drm_atomic.h>
|
2016-06-21 08:54:22 +00:00
|
|
|
#include <drm/drm_auth.h>
|
2016-08-15 14:07:02 +00:00
|
|
|
#include <drm/drm_framebuffer.h>
|
2008-11-07 22:05:41 +00:00
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|
2014-01-23 14:35:24 +00:00
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#include "drm_crtc_internal.h"
|
2014-09-10 10:43:53 +00:00
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#include "drm_internal.h"
|
2014-01-23 14:35:24 +00:00
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|
2008-11-07 22:05:41 +00:00
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/*
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* Global properties
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*/
|
2014-12-10 12:03:34 +00:00
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static const struct drm_prop_enum_list drm_plane_type_enum_list[] = {
|
2014-04-02 00:16:57 +00:00
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{ DRM_PLANE_TYPE_OVERLAY, "Overlay" },
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{ DRM_PLANE_TYPE_PRIMARY, "Primary" },
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{ DRM_PLANE_TYPE_CURSOR, "Cursor" },
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};
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|
2016-08-12 20:48:50 +00:00
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/*
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* Optional properties
|
2014-02-10 23:32:44 +00:00
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*/
|
2016-06-08 16:47:27 +00:00
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/**
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* drm_crtc_force_disable - Forcibly turn off a CRTC
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* @crtc: CRTC to turn off
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*
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* Returns:
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* Zero on success, error code on failure.
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*/
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int drm_crtc_force_disable(struct drm_crtc *crtc)
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{
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struct drm_mode_set set = {
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.crtc = crtc,
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};
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return drm_mode_set_config_internal(&set);
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}
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EXPORT_SYMBOL(drm_crtc_force_disable);
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/**
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* drm_crtc_force_disable_all - Forcibly turn off all enabled CRTCs
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* @dev: DRM device whose CRTCs to turn off
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*
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* Drivers may want to call this on unload to ensure that all displays are
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* unlit and the GPU is in a consistent, low power state. Takes modeset locks.
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*
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* Returns:
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* Zero on success, error code on failure.
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*/
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int drm_crtc_force_disable_all(struct drm_device *dev)
|
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|
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{
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struct drm_crtc *crtc;
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int ret = 0;
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drm_modeset_lock_all(dev);
|
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|
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drm_for_each_crtc(crtc, dev)
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if (crtc->enabled) {
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ret = drm_crtc_force_disable(crtc);
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if (ret)
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goto out;
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}
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out:
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drm_modeset_unlock_all(dev);
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return ret;
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|
|
}
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EXPORT_SYMBOL(drm_crtc_force_disable_all);
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|
2013-11-19 17:10:12 +00:00
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|
|
DEFINE_WW_CLASS(crtc_ww_class);
|
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|
|
2015-12-08 16:41:53 +00:00
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static unsigned int drm_num_crtcs(struct drm_device *dev)
|
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|
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{
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unsigned int num = 0;
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struct drm_crtc *tmp;
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drm_for_each_crtc(tmp, dev) {
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num++;
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}
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return num;
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}
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|
|
2016-06-21 14:37:09 +00:00
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|
static int drm_crtc_register_all(struct drm_device *dev)
|
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|
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{
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struct drm_crtc *crtc;
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int ret = 0;
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drm_for_each_crtc(crtc, dev) {
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if (crtc->funcs->late_register)
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ret = crtc->funcs->late_register(crtc);
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if (ret)
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return ret;
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}
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return 0;
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}
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static void drm_crtc_unregister_all(struct drm_device *dev)
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|
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{
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struct drm_crtc *crtc;
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drm_for_each_crtc(crtc, dev) {
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if (crtc->funcs->early_unregister)
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crtc->funcs->early_unregister(crtc);
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}
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}
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|
2008-11-07 22:05:41 +00:00
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/**
|
2014-04-01 22:22:38 +00:00
|
|
|
* drm_crtc_init_with_planes - Initialise a new CRTC object with
|
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|
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* specified primary and cursor planes.
|
2008-11-07 22:05:41 +00:00
|
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|
* @dev: DRM device
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* @crtc: CRTC object to init
|
2014-04-01 22:22:38 +00:00
|
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* @primary: Primary plane for CRTC
|
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|
* @cursor: Cursor plane for CRTC
|
2008-11-07 22:05:41 +00:00
|
|
|
* @funcs: callbacks for the new CRTC
|
drm: Pass 'name' to drm_crtc_init_with_planes()
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.
I didn't convert drm_crtc_init() since passing the varargs through
would mean either cpp macros or va_list, and I figured we don't
care about these legacy functions enough to warrant the extra pain.
@@
identifier dev, crtc, primary, cursor, funcs;
@@
int drm_crtc_init_with_planes(struct drm_device *dev,
struct drm_crtc *crtc,
struct drm_plane *primary, struct drm_plane *cursor,
const struct drm_crtc_funcs *funcs
+ ,const char *name, int DOTDOTDOT
)
{ ... }
@@
identifier dev, crtc, primary, cursor, funcs;
@@
int drm_crtc_init_with_planes(struct drm_device *dev,
struct drm_crtc *crtc,
struct drm_plane *primary, struct drm_plane *cursor,
const struct drm_crtc_funcs *funcs
+ ,const char *name, int DOTDOTDOT
);
@@
expression E1, E2, E3, E4, E5;
@@
drm_crtc_init_with_planes(E1, E2, E3, E4, E5
+ ,NULL
)
v2: Split crtc and plane changes apart
Pass NULL for no-name instead of ""
Leave drm_crtc_init() alone
v3: 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/1449670771-2751-1-git-send-email-ville.syrjala@linux.intel.com
2015-12-09 14:19:31 +00:00
|
|
|
* @name: printf style format string for the CRTC name, or NULL for default name
|
2008-11-07 22:05:41 +00:00
|
|
|
*
|
2013-06-05 12:39:55 +00:00
|
|
|
* Inits a new object created as base part of a driver crtc object.
|
2012-03-13 10:35:48 +00:00
|
|
|
*
|
2014-03-10 20:33:02 +00:00
|
|
|
* Returns:
|
2012-03-13 10:35:48 +00:00
|
|
|
* Zero on success, error code on failure.
|
2008-11-07 22:05:41 +00:00
|
|
|
*/
|
2014-04-01 22:22:38 +00:00
|
|
|
int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc,
|
|
|
|
struct drm_plane *primary,
|
2014-06-10 15:28:11 +00:00
|
|
|
struct drm_plane *cursor,
|
drm: Pass 'name' to drm_crtc_init_with_planes()
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.
I didn't convert drm_crtc_init() since passing the varargs through
would mean either cpp macros or va_list, and I figured we don't
care about these legacy functions enough to warrant the extra pain.
@@
identifier dev, crtc, primary, cursor, funcs;
@@
int drm_crtc_init_with_planes(struct drm_device *dev,
struct drm_crtc *crtc,
struct drm_plane *primary, struct drm_plane *cursor,
const struct drm_crtc_funcs *funcs
+ ,const char *name, int DOTDOTDOT
)
{ ... }
@@
identifier dev, crtc, primary, cursor, funcs;
@@
int drm_crtc_init_with_planes(struct drm_device *dev,
struct drm_crtc *crtc,
struct drm_plane *primary, struct drm_plane *cursor,
const struct drm_crtc_funcs *funcs
+ ,const char *name, int DOTDOTDOT
);
@@
expression E1, E2, E3, E4, E5;
@@
drm_crtc_init_with_planes(E1, E2, E3, E4, E5
+ ,NULL
)
v2: Split crtc and plane changes apart
Pass NULL for no-name instead of ""
Leave drm_crtc_init() alone
v3: 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/1449670771-2751-1-git-send-email-ville.syrjala@linux.intel.com
2015-12-09 14:19:31 +00:00
|
|
|
const struct drm_crtc_funcs *funcs,
|
|
|
|
const char *name, ...)
|
2008-11-07 22:05:41 +00:00
|
|
|
{
|
2013-11-19 17:10:12 +00:00
|
|
|
struct drm_mode_config *config = &dev->mode_config;
|
2012-03-13 10:35:48 +00:00
|
|
|
int ret;
|
|
|
|
|
2015-03-17 11:05:29 +00:00
|
|
|
WARN_ON(primary && primary->type != DRM_PLANE_TYPE_PRIMARY);
|
|
|
|
WARN_ON(cursor && cursor->type != DRM_PLANE_TYPE_CURSOR);
|
|
|
|
|
2008-11-07 22:05:41 +00:00
|
|
|
crtc->dev = dev;
|
|
|
|
crtc->funcs = funcs;
|
|
|
|
|
2016-06-08 12:19:00 +00:00
|
|
|
INIT_LIST_HEAD(&crtc->commit_list);
|
|
|
|
spin_lock_init(&crtc->commit_lock);
|
|
|
|
|
2013-11-19 17:10:12 +00:00
|
|
|
drm_modeset_lock_init(&crtc->mutex);
|
2012-03-13 10:35:48 +00:00
|
|
|
ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
|
|
|
|
if (ret)
|
2014-11-12 10:59:47 +00:00
|
|
|
return ret;
|
2008-11-07 22:05:41 +00:00
|
|
|
|
2015-12-08 16:41:53 +00:00
|
|
|
if (name) {
|
|
|
|
va_list ap;
|
|
|
|
|
|
|
|
va_start(ap, name);
|
|
|
|
crtc->name = kvasprintf(GFP_KERNEL, name, ap);
|
|
|
|
va_end(ap);
|
|
|
|
} else {
|
|
|
|
crtc->name = kasprintf(GFP_KERNEL, "crtc-%d",
|
|
|
|
drm_num_crtcs(dev));
|
|
|
|
}
|
|
|
|
if (!crtc->name) {
|
2016-04-15 05:10:32 +00:00
|
|
|
drm_mode_object_unregister(dev, &crtc->base);
|
2015-12-08 16:41:53 +00:00
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
|
2012-05-15 21:09:05 +00:00
|
|
|
crtc->base.properties = &crtc->properties;
|
|
|
|
|
2013-11-19 17:10:12 +00:00
|
|
|
list_add_tail(&crtc->head, &config->crtc_list);
|
2016-05-27 19:05:00 +00:00
|
|
|
crtc->index = config->num_crtc++;
|
2012-03-13 10:35:48 +00:00
|
|
|
|
2014-04-01 22:22:38 +00:00
|
|
|
crtc->primary = primary;
|
2014-06-10 15:28:11 +00:00
|
|
|
crtc->cursor = cursor;
|
2014-04-01 22:22:38 +00:00
|
|
|
if (primary)
|
|
|
|
primary->possible_crtcs = 1 << drm_crtc_index(crtc);
|
2014-06-10 15:28:11 +00:00
|
|
|
if (cursor)
|
|
|
|
cursor->possible_crtcs = 1 << drm_crtc_index(crtc);
|
2014-04-01 22:22:38 +00:00
|
|
|
|
2015-01-22 15:36:21 +00:00
|
|
|
if (drm_core_check_feature(dev, DRIVER_ATOMIC)) {
|
|
|
|
drm_object_attach_property(&crtc->base, config->prop_active, 0);
|
2015-05-25 18:11:52 +00:00
|
|
|
drm_object_attach_property(&crtc->base, config->prop_mode_id, 0);
|
2015-01-22 15:36:21 +00:00
|
|
|
}
|
|
|
|
|
2014-11-12 10:59:47 +00:00
|
|
|
return 0;
|
2008-11-07 22:05:41 +00:00
|
|
|
}
|
2014-04-01 22:22:38 +00:00
|
|
|
EXPORT_SYMBOL(drm_crtc_init_with_planes);
|
2008-11-07 22:05:41 +00:00
|
|
|
|
|
|
|
/**
|
2013-06-05 12:39:55 +00:00
|
|
|
* drm_crtc_cleanup - Clean up the core crtc usage
|
2008-11-07 22:05:41 +00:00
|
|
|
* @crtc: CRTC to cleanup
|
|
|
|
*
|
2013-06-05 12:39:55 +00:00
|
|
|
* This function cleans up @crtc and removes it from the DRM mode setting
|
|
|
|
* core. Note that the function does *not* free the crtc structure itself,
|
|
|
|
* this is the responsibility of the caller.
|
2008-11-07 22:05:41 +00:00
|
|
|
*/
|
|
|
|
void drm_crtc_cleanup(struct drm_crtc *crtc)
|
|
|
|
{
|
|
|
|
struct drm_device *dev = crtc->dev;
|
|
|
|
|
2016-05-27 19:05:00 +00:00
|
|
|
/* Note that the crtc_list is considered to be static; should we
|
|
|
|
* remove the drm_crtc at runtime we would have to decrement all
|
|
|
|
* the indices on the drm_crtc after us in the crtc_list.
|
|
|
|
*/
|
|
|
|
|
2012-11-19 09:44:56 +00:00
|
|
|
kfree(crtc->gamma_store);
|
|
|
|
crtc->gamma_store = NULL;
|
2008-11-07 22:05:41 +00:00
|
|
|
|
2013-11-19 17:10:12 +00:00
|
|
|
drm_modeset_lock_fini(&crtc->mutex);
|
|
|
|
|
2016-04-15 05:10:32 +00:00
|
|
|
drm_mode_object_unregister(dev, &crtc->base);
|
2008-11-07 22:05:41 +00:00
|
|
|
list_del(&crtc->head);
|
|
|
|
dev->mode_config.num_crtc--;
|
2014-11-25 11:09:49 +00:00
|
|
|
|
|
|
|
WARN_ON(crtc->state && !crtc->funcs->atomic_destroy_state);
|
|
|
|
if (crtc->state && crtc->funcs->atomic_destroy_state)
|
|
|
|
crtc->funcs->atomic_destroy_state(crtc, crtc->state);
|
2014-12-10 10:38:49 +00:00
|
|
|
|
2015-12-08 16:41:53 +00:00
|
|
|
kfree(crtc->name);
|
|
|
|
|
2014-12-10 10:38:49 +00:00
|
|
|
memset(crtc, 0, sizeof(*crtc));
|
2008-11-07 22:05:41 +00:00
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(drm_crtc_cleanup);
|
|
|
|
|
2015-12-08 16:41:54 +00:00
|
|
|
static unsigned int drm_num_planes(struct drm_device *dev)
|
|
|
|
{
|
|
|
|
unsigned int num = 0;
|
|
|
|
struct drm_plane *tmp;
|
|
|
|
|
|
|
|
drm_for_each_plane(tmp, dev) {
|
|
|
|
num++;
|
|
|
|
}
|
|
|
|
|
|
|
|
return num;
|
|
|
|
}
|
|
|
|
|
2013-06-05 12:39:56 +00:00
|
|
|
/**
|
2014-04-01 22:22:36 +00:00
|
|
|
* drm_universal_plane_init - Initialize a new universal plane object
|
2013-06-05 12:39:56 +00:00
|
|
|
* @dev: DRM device
|
|
|
|
* @plane: plane object to init
|
|
|
|
* @possible_crtcs: bitmask of possible CRTCs
|
|
|
|
* @funcs: callbacks for the new plane
|
2016-08-12 20:48:37 +00:00
|
|
|
* @formats: array of supported formats (DRM_FORMAT\_\*)
|
2013-06-05 12:39:56 +00:00
|
|
|
* @format_count: number of elements in @formats
|
2014-04-01 22:22:36 +00:00
|
|
|
* @type: type of plane (overlay, primary, cursor)
|
drm: Pass 'name' to drm_universal_plane_init()
Done with coccinelle for the most part. It choked on
msm/mdp/mdp5/mdp5_plane.c like so:
"BAD:!!!!! enum drm_plane_type type;"
No idea how to deal with that, so I just fixed that up
by hand.
Also 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.
I didn't convert drm_plane_init() since passing the varargs through
would mean either cpp macros or va_list, and I figured we don't
care about these legacy functions enough to warrant the extra pain.
@@
typedef uint32_t;
identifier dev, plane, possible_crtcs, funcs, formats, format_count, type;
@@
int drm_universal_plane_init(struct drm_device *dev,
struct drm_plane *plane,
unsigned long possible_crtcs,
const struct drm_plane_funcs *funcs,
const uint32_t *formats,
unsigned int format_count,
enum drm_plane_type type
+ ,const char *name, int DOTDOTDOT
)
{ ... }
@@
identifier dev, plane, possible_crtcs, funcs, formats, format_count, type;
@@
int drm_universal_plane_init(struct drm_device *dev,
struct drm_plane *plane,
unsigned long possible_crtcs,
const struct drm_plane_funcs *funcs,
const uint32_t *formats,
unsigned int format_count,
enum drm_plane_type type
+ ,const char *name, int DOTDOTDOT
);
@@
expression E1, E2, E3, E4, E5, E6, E7;
@@
drm_universal_plane_init(E1, E2, E3, E4, E5, E6, E7
+ ,NULL
)
v2: Split crtc and plane changes apart
Pass NUL for no-name instead of ""
Leave drm_plane_init() alone
v3: 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/1449670795-2853-1-git-send-email-ville.syrjala@linux.intel.com
2015-12-09 14:19:55 +00:00
|
|
|
* @name: printf style format string for the plane name, or NULL for default name
|
2013-06-05 12:39:56 +00:00
|
|
|
*
|
2014-04-01 22:22:36 +00:00
|
|
|
* Initializes a plane object of type @type.
|
2013-06-05 12:39:56 +00:00
|
|
|
*
|
2014-03-10 20:33:02 +00:00
|
|
|
* Returns:
|
2013-06-05 12:39:56 +00:00
|
|
|
* Zero on success, error code on failure.
|
|
|
|
*/
|
2014-04-01 22:22:36 +00:00
|
|
|
int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane,
|
|
|
|
unsigned long possible_crtcs,
|
|
|
|
const struct drm_plane_funcs *funcs,
|
2015-08-12 14:54:28 +00:00
|
|
|
const uint32_t *formats, unsigned int format_count,
|
drm: Pass 'name' to drm_universal_plane_init()
Done with coccinelle for the most part. It choked on
msm/mdp/mdp5/mdp5_plane.c like so:
"BAD:!!!!! enum drm_plane_type type;"
No idea how to deal with that, so I just fixed that up
by hand.
Also 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.
I didn't convert drm_plane_init() since passing the varargs through
would mean either cpp macros or va_list, and I figured we don't
care about these legacy functions enough to warrant the extra pain.
@@
typedef uint32_t;
identifier dev, plane, possible_crtcs, funcs, formats, format_count, type;
@@
int drm_universal_plane_init(struct drm_device *dev,
struct drm_plane *plane,
unsigned long possible_crtcs,
const struct drm_plane_funcs *funcs,
const uint32_t *formats,
unsigned int format_count,
enum drm_plane_type type
+ ,const char *name, int DOTDOTDOT
)
{ ... }
@@
identifier dev, plane, possible_crtcs, funcs, formats, format_count, type;
@@
int drm_universal_plane_init(struct drm_device *dev,
struct drm_plane *plane,
unsigned long possible_crtcs,
const struct drm_plane_funcs *funcs,
const uint32_t *formats,
unsigned int format_count,
enum drm_plane_type type
+ ,const char *name, int DOTDOTDOT
);
@@
expression E1, E2, E3, E4, E5, E6, E7;
@@
drm_universal_plane_init(E1, E2, E3, E4, E5, E6, E7
+ ,NULL
)
v2: Split crtc and plane changes apart
Pass NUL for no-name instead of ""
Leave drm_plane_init() alone
v3: 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/1449670795-2853-1-git-send-email-ville.syrjala@linux.intel.com
2015-12-09 14:19:55 +00:00
|
|
|
enum drm_plane_type type,
|
|
|
|
const char *name, ...)
|
2011-11-14 22:51:27 +00:00
|
|
|
{
|
2014-12-18 21:01:53 +00:00
|
|
|
struct drm_mode_config *config = &dev->mode_config;
|
2012-03-13 10:35:48 +00:00
|
|
|
int ret;
|
|
|
|
|
|
|
|
ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE);
|
|
|
|
if (ret)
|
2014-11-12 10:59:47 +00:00
|
|
|
return ret;
|
2012-03-13 10:35:48 +00:00
|
|
|
|
2014-11-11 09:12:00 +00:00
|
|
|
drm_modeset_lock_init(&plane->mutex);
|
|
|
|
|
2012-05-17 08:23:27 +00:00
|
|
|
plane->base.properties = &plane->properties;
|
2011-11-14 22:51:27 +00:00
|
|
|
plane->dev = dev;
|
|
|
|
plane->funcs = funcs;
|
2014-12-10 12:03:36 +00:00
|
|
|
plane->format_types = kmalloc_array(format_count, sizeof(uint32_t),
|
|
|
|
GFP_KERNEL);
|
2011-11-14 22:51:27 +00:00
|
|
|
if (!plane->format_types) {
|
|
|
|
DRM_DEBUG_KMS("out of memory when allocating plane\n");
|
2016-04-15 05:10:32 +00:00
|
|
|
drm_mode_object_unregister(dev, &plane->base);
|
2014-11-12 10:59:47 +00:00
|
|
|
return -ENOMEM;
|
2011-11-14 22:51:27 +00:00
|
|
|
}
|
|
|
|
|
2015-12-08 16:41:54 +00:00
|
|
|
if (name) {
|
|
|
|
va_list ap;
|
|
|
|
|
|
|
|
va_start(ap, name);
|
|
|
|
plane->name = kvasprintf(GFP_KERNEL, name, ap);
|
|
|
|
va_end(ap);
|
|
|
|
} else {
|
|
|
|
plane->name = kasprintf(GFP_KERNEL, "plane-%d",
|
|
|
|
drm_num_planes(dev));
|
|
|
|
}
|
|
|
|
if (!plane->name) {
|
|
|
|
kfree(plane->format_types);
|
2016-04-15 05:10:32 +00:00
|
|
|
drm_mode_object_unregister(dev, &plane->base);
|
2015-12-08 16:41:54 +00:00
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
|
2011-11-14 22:51:28 +00:00
|
|
|
memcpy(plane->format_types, formats, format_count * sizeof(uint32_t));
|
2011-11-14 22:51:27 +00:00
|
|
|
plane->format_count = format_count;
|
|
|
|
plane->possible_crtcs = possible_crtcs;
|
2014-04-01 22:22:36 +00:00
|
|
|
plane->type = type;
|
2011-11-14 22:51:27 +00:00
|
|
|
|
2014-12-18 21:01:53 +00:00
|
|
|
list_add_tail(&plane->head, &config->plane_list);
|
2016-05-27 19:05:00 +00:00
|
|
|
plane->index = config->num_total_plane++;
|
2014-04-01 22:22:36 +00:00
|
|
|
if (plane->type == DRM_PLANE_TYPE_OVERLAY)
|
2014-12-18 21:01:53 +00:00
|
|
|
config->num_overlay_plane++;
|
2011-11-14 22:51:27 +00:00
|
|
|
|
2014-04-02 00:16:57 +00:00
|
|
|
drm_object_attach_property(&plane->base,
|
2014-12-18 21:01:53 +00:00
|
|
|
config->plane_type_property,
|
2014-04-02 00:16:57 +00:00
|
|
|
plane->type);
|
|
|
|
|
2014-12-18 21:01:53 +00:00
|
|
|
if (drm_core_check_feature(dev, DRIVER_ATOMIC)) {
|
|
|
|
drm_object_attach_property(&plane->base, config->prop_fb_id, 0);
|
|
|
|
drm_object_attach_property(&plane->base, config->prop_crtc_id, 0);
|
|
|
|
drm_object_attach_property(&plane->base, config->prop_crtc_x, 0);
|
|
|
|
drm_object_attach_property(&plane->base, config->prop_crtc_y, 0);
|
|
|
|
drm_object_attach_property(&plane->base, config->prop_crtc_w, 0);
|
|
|
|
drm_object_attach_property(&plane->base, config->prop_crtc_h, 0);
|
|
|
|
drm_object_attach_property(&plane->base, config->prop_src_x, 0);
|
|
|
|
drm_object_attach_property(&plane->base, config->prop_src_y, 0);
|
|
|
|
drm_object_attach_property(&plane->base, config->prop_src_w, 0);
|
|
|
|
drm_object_attach_property(&plane->base, config->prop_src_h, 0);
|
|
|
|
}
|
|
|
|
|
2014-11-12 10:59:47 +00:00
|
|
|
return 0;
|
2011-11-14 22:51:27 +00:00
|
|
|
}
|
2014-04-01 22:22:36 +00:00
|
|
|
EXPORT_SYMBOL(drm_universal_plane_init);
|
|
|
|
|
2016-06-21 14:37:09 +00:00
|
|
|
static int drm_plane_register_all(struct drm_device *dev)
|
|
|
|
{
|
|
|
|
struct drm_plane *plane;
|
|
|
|
int ret = 0;
|
|
|
|
|
|
|
|
drm_for_each_plane(plane, dev) {
|
|
|
|
if (plane->funcs->late_register)
|
|
|
|
ret = plane->funcs->late_register(plane);
|
|
|
|
if (ret)
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void drm_plane_unregister_all(struct drm_device *dev)
|
|
|
|
{
|
|
|
|
struct drm_plane *plane;
|
|
|
|
|
|
|
|
drm_for_each_plane(plane, dev) {
|
|
|
|
if (plane->funcs->early_unregister)
|
|
|
|
plane->funcs->early_unregister(plane);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2014-04-01 22:22:36 +00:00
|
|
|
/**
|
|
|
|
* drm_plane_init - Initialize a legacy plane
|
|
|
|
* @dev: DRM device
|
|
|
|
* @plane: plane object to init
|
|
|
|
* @possible_crtcs: bitmask of possible CRTCs
|
|
|
|
* @funcs: callbacks for the new plane
|
2016-08-12 20:48:37 +00:00
|
|
|
* @formats: array of supported formats (DRM_FORMAT\_\*)
|
2014-04-01 22:22:36 +00:00
|
|
|
* @format_count: number of elements in @formats
|
|
|
|
* @is_primary: plane type (primary vs overlay)
|
|
|
|
*
|
|
|
|
* Legacy API to initialize a DRM plane.
|
|
|
|
*
|
|
|
|
* New drivers should call drm_universal_plane_init() instead.
|
|
|
|
*
|
|
|
|
* Returns:
|
|
|
|
* Zero on success, error code on failure.
|
|
|
|
*/
|
|
|
|
int drm_plane_init(struct drm_device *dev, struct drm_plane *plane,
|
|
|
|
unsigned long possible_crtcs,
|
|
|
|
const struct drm_plane_funcs *funcs,
|
2015-08-12 14:54:28 +00:00
|
|
|
const uint32_t *formats, unsigned int format_count,
|
2014-04-01 22:22:36 +00:00
|
|
|
bool is_primary)
|
|
|
|
{
|
|
|
|
enum drm_plane_type type;
|
|
|
|
|
|
|
|
type = is_primary ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY;
|
|
|
|
return drm_universal_plane_init(dev, plane, possible_crtcs, funcs,
|
drm: Pass 'name' to drm_universal_plane_init()
Done with coccinelle for the most part. It choked on
msm/mdp/mdp5/mdp5_plane.c like so:
"BAD:!!!!! enum drm_plane_type type;"
No idea how to deal with that, so I just fixed that up
by hand.
Also 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.
I didn't convert drm_plane_init() since passing the varargs through
would mean either cpp macros or va_list, and I figured we don't
care about these legacy functions enough to warrant the extra pain.
@@
typedef uint32_t;
identifier dev, plane, possible_crtcs, funcs, formats, format_count, type;
@@
int drm_universal_plane_init(struct drm_device *dev,
struct drm_plane *plane,
unsigned long possible_crtcs,
const struct drm_plane_funcs *funcs,
const uint32_t *formats,
unsigned int format_count,
enum drm_plane_type type
+ ,const char *name, int DOTDOTDOT
)
{ ... }
@@
identifier dev, plane, possible_crtcs, funcs, formats, format_count, type;
@@
int drm_universal_plane_init(struct drm_device *dev,
struct drm_plane *plane,
unsigned long possible_crtcs,
const struct drm_plane_funcs *funcs,
const uint32_t *formats,
unsigned int format_count,
enum drm_plane_type type
+ ,const char *name, int DOTDOTDOT
);
@@
expression E1, E2, E3, E4, E5, E6, E7;
@@
drm_universal_plane_init(E1, E2, E3, E4, E5, E6, E7
+ ,NULL
)
v2: Split crtc and plane changes apart
Pass NUL for no-name instead of ""
Leave drm_plane_init() alone
v3: 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/1449670795-2853-1-git-send-email-ville.syrjala@linux.intel.com
2015-12-09 14:19:55 +00:00
|
|
|
formats, format_count, type, NULL);
|
2014-04-01 22:22:36 +00:00
|
|
|
}
|
2011-11-14 22:51:27 +00:00
|
|
|
EXPORT_SYMBOL(drm_plane_init);
|
|
|
|
|
2013-06-05 12:39:56 +00:00
|
|
|
/**
|
|
|
|
* drm_plane_cleanup - Clean up the core plane usage
|
|
|
|
* @plane: plane to cleanup
|
|
|
|
*
|
|
|
|
* This function cleans up @plane and removes it from the DRM mode setting
|
|
|
|
* core. Note that the function does *not* free the plane structure itself,
|
|
|
|
* this is the responsibility of the caller.
|
|
|
|
*/
|
2011-11-14 22:51:27 +00:00
|
|
|
void drm_plane_cleanup(struct drm_plane *plane)
|
|
|
|
{
|
|
|
|
struct drm_device *dev = plane->dev;
|
|
|
|
|
2012-12-01 23:28:11 +00:00
|
|
|
drm_modeset_lock_all(dev);
|
2011-11-14 22:51:27 +00:00
|
|
|
kfree(plane->format_types);
|
2016-04-15 05:10:32 +00:00
|
|
|
drm_mode_object_unregister(dev, &plane->base);
|
2014-04-01 22:22:36 +00:00
|
|
|
|
|
|
|
BUG_ON(list_empty(&plane->head));
|
|
|
|
|
2016-05-27 19:05:00 +00:00
|
|
|
/* Note that the plane_list is considered to be static; should we
|
|
|
|
* remove the drm_plane at runtime we would have to decrement all
|
|
|
|
* the indices on the drm_plane after us in the plane_list.
|
|
|
|
*/
|
|
|
|
|
2014-04-01 22:22:36 +00:00
|
|
|
list_del(&plane->head);
|
|
|
|
dev->mode_config.num_total_plane--;
|
|
|
|
if (plane->type == DRM_PLANE_TYPE_OVERLAY)
|
|
|
|
dev->mode_config.num_overlay_plane--;
|
2012-12-01 23:28:11 +00:00
|
|
|
drm_modeset_unlock_all(dev);
|
2014-11-25 11:09:49 +00:00
|
|
|
|
|
|
|
WARN_ON(plane->state && !plane->funcs->atomic_destroy_state);
|
|
|
|
if (plane->state && plane->funcs->atomic_destroy_state)
|
|
|
|
plane->funcs->atomic_destroy_state(plane, plane->state);
|
2014-12-10 10:38:49 +00:00
|
|
|
|
2015-12-08 16:41:54 +00:00
|
|
|
kfree(plane->name);
|
|
|
|
|
2014-12-10 10:38:49 +00:00
|
|
|
memset(plane, 0, sizeof(*plane));
|
2011-11-14 22:51:27 +00:00
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(drm_plane_cleanup);
|
|
|
|
|
2015-04-10 00:36:21 +00:00
|
|
|
/**
|
|
|
|
* drm_plane_from_index - find the registered plane at an index
|
|
|
|
* @dev: DRM device
|
|
|
|
* @idx: index of registered plane to find for
|
|
|
|
*
|
|
|
|
* Given a plane index, return the registered plane from DRM device's
|
|
|
|
* list of planes with matching index.
|
|
|
|
*/
|
|
|
|
struct drm_plane *
|
|
|
|
drm_plane_from_index(struct drm_device *dev, int idx)
|
|
|
|
{
|
|
|
|
struct drm_plane *plane;
|
|
|
|
|
2016-05-27 19:05:00 +00:00
|
|
|
drm_for_each_plane(plane, dev)
|
|
|
|
if (idx == plane->index)
|
2015-04-10 00:36:21 +00:00
|
|
|
return plane;
|
2016-05-27 19:05:00 +00:00
|
|
|
|
2015-04-10 00:36:21 +00:00
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(drm_plane_from_index);
|
|
|
|
|
2013-06-05 12:39:56 +00:00
|
|
|
/**
|
|
|
|
* drm_plane_force_disable - Forcibly disable a plane
|
|
|
|
* @plane: plane to disable
|
|
|
|
*
|
|
|
|
* Forces the plane to be disabled.
|
|
|
|
*
|
|
|
|
* Used when the plane's current framebuffer is destroyed,
|
|
|
|
* and when restoring fbdev mode.
|
|
|
|
*/
|
2013-06-03 13:10:40 +00:00
|
|
|
void drm_plane_force_disable(struct drm_plane *plane)
|
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
|
2014-07-27 11:42:42 +00:00
|
|
|
if (!plane->fb)
|
2013-06-03 13:10:40 +00:00
|
|
|
return;
|
|
|
|
|
2014-07-27 11:42:42 +00:00
|
|
|
plane->old_fb = plane->fb;
|
2013-06-03 13:10:40 +00:00
|
|
|
ret = plane->funcs->disable_plane(plane);
|
2014-04-23 08:24:11 +00:00
|
|
|
if (ret) {
|
2013-06-03 13:10:40 +00:00
|
|
|
DRM_ERROR("failed to disable plane with busy fb\n");
|
2014-07-27 11:42:42 +00:00
|
|
|
plane->old_fb = NULL;
|
2014-04-23 08:24:11 +00:00
|
|
|
return;
|
|
|
|
}
|
2013-06-03 13:10:40 +00:00
|
|
|
/* disconnect the plane from the fb and crtc: */
|
2015-02-27 11:58:13 +00:00
|
|
|
drm_framebuffer_unreference(plane->old_fb);
|
2014-07-27 11:42:42 +00:00
|
|
|
plane->old_fb = NULL;
|
2013-06-03 13:10:40 +00:00
|
|
|
plane->fb = NULL;
|
|
|
|
plane->crtc = NULL;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(drm_plane_force_disable);
|
|
|
|
|
2016-06-21 14:37:09 +00:00
|
|
|
int drm_modeset_register_all(struct drm_device *dev)
|
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
ret = drm_plane_register_all(dev);
|
|
|
|
if (ret)
|
|
|
|
goto err_plane;
|
|
|
|
|
|
|
|
ret = drm_crtc_register_all(dev);
|
|
|
|
if (ret)
|
|
|
|
goto err_crtc;
|
|
|
|
|
|
|
|
ret = drm_encoder_register_all(dev);
|
|
|
|
if (ret)
|
|
|
|
goto err_encoder;
|
|
|
|
|
|
|
|
ret = drm_connector_register_all(dev);
|
|
|
|
if (ret)
|
|
|
|
goto err_connector;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
err_connector:
|
|
|
|
drm_encoder_unregister_all(dev);
|
|
|
|
err_encoder:
|
|
|
|
drm_crtc_unregister_all(dev);
|
|
|
|
err_crtc:
|
|
|
|
drm_plane_unregister_all(dev);
|
|
|
|
err_plane:
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
void drm_modeset_unregister_all(struct drm_device *dev)
|
|
|
|
{
|
|
|
|
drm_connector_unregister_all(dev);
|
|
|
|
drm_encoder_unregister_all(dev);
|
|
|
|
drm_crtc_unregister_all(dev);
|
|
|
|
drm_plane_unregister_all(dev);
|
|
|
|
}
|
|
|
|
|
2014-12-18 21:01:53 +00:00
|
|
|
static int drm_mode_create_standard_properties(struct drm_device *dev)
|
2008-11-07 22:05:41 +00:00
|
|
|
{
|
2014-12-18 21:01:52 +00:00
|
|
|
struct drm_property *prop;
|
2016-08-12 20:48:50 +00:00
|
|
|
int ret;
|
2008-11-07 22:05:41 +00:00
|
|
|
|
2016-08-12 20:48:50 +00:00
|
|
|
ret = drm_connector_create_standard_properties(dev);
|
|
|
|
if (ret)
|
|
|
|
return ret;
|
2014-04-02 00:16:57 +00:00
|
|
|
|
2014-12-18 21:01:53 +00:00
|
|
|
prop = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
|
2014-04-02 00:16:57 +00:00
|
|
|
"type", drm_plane_type_enum_list,
|
|
|
|
ARRAY_SIZE(drm_plane_type_enum_list));
|
2014-12-18 21:01:53 +00:00
|
|
|
if (!prop)
|
|
|
|
return -ENOMEM;
|
|
|
|
dev->mode_config.plane_type_property = prop;
|
|
|
|
|
|
|
|
prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
|
|
|
|
"SRC_X", 0, UINT_MAX);
|
|
|
|
if (!prop)
|
|
|
|
return -ENOMEM;
|
|
|
|
dev->mode_config.prop_src_x = prop;
|
|
|
|
|
|
|
|
prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
|
|
|
|
"SRC_Y", 0, UINT_MAX);
|
|
|
|
if (!prop)
|
|
|
|
return -ENOMEM;
|
|
|
|
dev->mode_config.prop_src_y = prop;
|
|
|
|
|
|
|
|
prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
|
|
|
|
"SRC_W", 0, UINT_MAX);
|
|
|
|
if (!prop)
|
|
|
|
return -ENOMEM;
|
|
|
|
dev->mode_config.prop_src_w = prop;
|
|
|
|
|
|
|
|
prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
|
|
|
|
"SRC_H", 0, UINT_MAX);
|
|
|
|
if (!prop)
|
|
|
|
return -ENOMEM;
|
|
|
|
dev->mode_config.prop_src_h = prop;
|
|
|
|
|
|
|
|
prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC,
|
|
|
|
"CRTC_X", INT_MIN, INT_MAX);
|
|
|
|
if (!prop)
|
|
|
|
return -ENOMEM;
|
|
|
|
dev->mode_config.prop_crtc_x = prop;
|
|
|
|
|
|
|
|
prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC,
|
|
|
|
"CRTC_Y", INT_MIN, INT_MAX);
|
|
|
|
if (!prop)
|
|
|
|
return -ENOMEM;
|
|
|
|
dev->mode_config.prop_crtc_y = prop;
|
|
|
|
|
|
|
|
prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
|
|
|
|
"CRTC_W", 0, INT_MAX);
|
|
|
|
if (!prop)
|
|
|
|
return -ENOMEM;
|
|
|
|
dev->mode_config.prop_crtc_w = prop;
|
|
|
|
|
|
|
|
prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
|
|
|
|
"CRTC_H", 0, INT_MAX);
|
|
|
|
if (!prop)
|
|
|
|
return -ENOMEM;
|
|
|
|
dev->mode_config.prop_crtc_h = prop;
|
|
|
|
|
|
|
|
prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC,
|
|
|
|
"FB_ID", DRM_MODE_OBJECT_FB);
|
|
|
|
if (!prop)
|
|
|
|
return -ENOMEM;
|
|
|
|
dev->mode_config.prop_fb_id = prop;
|
|
|
|
|
|
|
|
prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC,
|
|
|
|
"CRTC_ID", DRM_MODE_OBJECT_CRTC);
|
|
|
|
if (!prop)
|
|
|
|
return -ENOMEM;
|
|
|
|
dev->mode_config.prop_crtc_id = prop;
|
2014-04-02 00:16:57 +00:00
|
|
|
|
2015-01-22 15:36:21 +00:00
|
|
|
prop = drm_property_create_bool(dev, DRM_MODE_PROP_ATOMIC,
|
|
|
|
"ACTIVE");
|
|
|
|
if (!prop)
|
|
|
|
return -ENOMEM;
|
|
|
|
dev->mode_config.prop_active = prop;
|
|
|
|
|
2015-05-25 18:11:52 +00:00
|
|
|
prop = drm_property_create(dev,
|
|
|
|
DRM_MODE_PROP_ATOMIC | DRM_MODE_PROP_BLOB,
|
|
|
|
"MODE_ID", 0);
|
|
|
|
if (!prop)
|
|
|
|
return -ENOMEM;
|
|
|
|
dev->mode_config.prop_mode_id = prop;
|
|
|
|
|
2016-02-26 17:05:00 +00:00
|
|
|
prop = drm_property_create(dev,
|
|
|
|
DRM_MODE_PROP_BLOB,
|
|
|
|
"DEGAMMA_LUT", 0);
|
|
|
|
if (!prop)
|
|
|
|
return -ENOMEM;
|
|
|
|
dev->mode_config.degamma_lut_property = prop;
|
|
|
|
|
|
|
|
prop = drm_property_create_range(dev,
|
|
|
|
DRM_MODE_PROP_IMMUTABLE,
|
|
|
|
"DEGAMMA_LUT_SIZE", 0, UINT_MAX);
|
|
|
|
if (!prop)
|
|
|
|
return -ENOMEM;
|
|
|
|
dev->mode_config.degamma_lut_size_property = prop;
|
|
|
|
|
|
|
|
prop = drm_property_create(dev,
|
|
|
|
DRM_MODE_PROP_BLOB,
|
|
|
|
"CTM", 0);
|
|
|
|
if (!prop)
|
|
|
|
return -ENOMEM;
|
|
|
|
dev->mode_config.ctm_property = prop;
|
|
|
|
|
|
|
|
prop = drm_property_create(dev,
|
|
|
|
DRM_MODE_PROP_BLOB,
|
|
|
|
"GAMMA_LUT", 0);
|
|
|
|
if (!prop)
|
|
|
|
return -ENOMEM;
|
|
|
|
dev->mode_config.gamma_lut_property = prop;
|
|
|
|
|
|
|
|
prop = drm_property_create_range(dev,
|
|
|
|
DRM_MODE_PROP_IMMUTABLE,
|
|
|
|
"GAMMA_LUT_SIZE", 0, UINT_MAX);
|
|
|
|
if (!prop)
|
|
|
|
return -ENOMEM;
|
|
|
|
dev->mode_config.gamma_lut_size_property = prop;
|
|
|
|
|
2014-04-02 00:16:57 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2008-11-07 22:05:41 +00:00
|
|
|
/**
|
|
|
|
* drm_mode_getresources - get graphics configuration
|
2012-12-01 23:09:18 +00:00
|
|
|
* @dev: drm device for the ioctl
|
|
|
|
* @data: data pointer for the ioctl
|
|
|
|
* @file_priv: drm file for the ioctl call
|
2008-11-07 22:05:41 +00:00
|
|
|
*
|
|
|
|
* Construct a set of configuration description structures and return
|
|
|
|
* them to the user, including CRTC, connector and framebuffer configuration.
|
|
|
|
*
|
|
|
|
* Called by the user via ioctl.
|
|
|
|
*
|
2014-03-10 20:33:02 +00:00
|
|
|
* Returns:
|
2014-11-19 17:38:09 +00:00
|
|
|
* Zero on success, negative errno on failure.
|
2008-11-07 22:05:41 +00:00
|
|
|
*/
|
|
|
|
int drm_mode_getresources(struct drm_device *dev, void *data,
|
|
|
|
struct drm_file *file_priv)
|
|
|
|
{
|
|
|
|
struct drm_mode_card_res *card_res = data;
|
|
|
|
struct list_head *lh;
|
|
|
|
struct drm_framebuffer *fb;
|
|
|
|
struct drm_connector *connector;
|
|
|
|
struct drm_crtc *crtc;
|
|
|
|
struct drm_encoder *encoder;
|
|
|
|
int ret = 0;
|
|
|
|
int connector_count = 0;
|
|
|
|
int crtc_count = 0;
|
|
|
|
int fb_count = 0;
|
|
|
|
int encoder_count = 0;
|
2015-07-09 21:44:36 +00:00
|
|
|
int copied = 0;
|
2008-11-07 22:05:41 +00:00
|
|
|
uint32_t __user *fb_id;
|
|
|
|
uint32_t __user *crtc_id;
|
|
|
|
uint32_t __user *connector_id;
|
|
|
|
uint32_t __user *encoder_id;
|
|
|
|
|
2011-02-08 03:55:21 +00:00
|
|
|
if (!drm_core_check_feature(dev, DRIVER_MODESET))
|
|
|
|
return -EINVAL;
|
|
|
|
|
2008-11-07 22:05:41 +00:00
|
|
|
|
drm: revamp locking around fb creation/destruction
Well, at least step 1. The goal here is that framebuffer objects can
survive outside of the mode_config lock, with just a reference held
as protection. The first step to get there is to introduce a special
fb_lock which protects fb lookup, creation and destruction, to make
them appear atomic.
This new fb_lock can nest within the mode_config lock. But the idea is
(once the reference counting part is completed) that we only quickly
take that fb_lock to lookup a framebuffer and grab a reference,
without any other locks involved.
vmwgfx is the only driver which does framebuffer lookups itself, also
wrap those calls to drm_mode_object_find with the new lock.
Also protect the fb_list walking in i915 and omapdrm with the new lock.
As a slight complication there's also the list of user-created fbs
attached to the file private. The problem now is that at fclose() time
we need to walk that list, eventually do a modeset call to remove the
fb from active usage (and are required to be able to take the
mode_config lock), but in the end we need to grab the new fb_lock to
remove the fb from the list. The easiest solution is to add another
mutex to protect this per-file list.
Currently that new fbs_lock nests within the modeset locks and so
appears redudant. But later patches will switch around this sequence
so that taking the modeset locks in the fb destruction path is
optional in the fastpath. Ultimately the goal is that addfb and rmfb
do not require the mode_config lock, since otherwise they have the
potential to introduce stalls in the pageflip sequence of a compositor
(if the compositor e.g. switches to a fullscreen client or if it
enables a plane). But that requires a few more steps and hoops to jump
through.
Note that framebuffer creation/destruction is now double-protected -
once by the fb_lock and in parts by the idr_lock. The later would be
unnecessariy if framebuffers would have their own idr allocator. But
that's material for another patch (series).
v2: Properly initialize the fb->filp_head list in _init, otherwise the
newly added WARN to check whether the fb isn't on a fpriv list any
more will fail for driver-private objects.
v3: Fixup two error-case unlock bugs spotted by Richard Wilbur.
Reviewed-by: Rob Clark <rob@ti.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-12-10 20:19:18 +00:00
|
|
|
mutex_lock(&file_priv->fbs_lock);
|
2008-11-07 22:05:41 +00:00
|
|
|
/*
|
|
|
|
* For the non-control nodes we need to limit the list of resources
|
|
|
|
* by IDs in the group list for this node
|
|
|
|
*/
|
|
|
|
list_for_each(lh, &file_priv->fbs)
|
|
|
|
fb_count++;
|
|
|
|
|
drm: revamp locking around fb creation/destruction
Well, at least step 1. The goal here is that framebuffer objects can
survive outside of the mode_config lock, with just a reference held
as protection. The first step to get there is to introduce a special
fb_lock which protects fb lookup, creation and destruction, to make
them appear atomic.
This new fb_lock can nest within the mode_config lock. But the idea is
(once the reference counting part is completed) that we only quickly
take that fb_lock to lookup a framebuffer and grab a reference,
without any other locks involved.
vmwgfx is the only driver which does framebuffer lookups itself, also
wrap those calls to drm_mode_object_find with the new lock.
Also protect the fb_list walking in i915 and omapdrm with the new lock.
As a slight complication there's also the list of user-created fbs
attached to the file private. The problem now is that at fclose() time
we need to walk that list, eventually do a modeset call to remove the
fb from active usage (and are required to be able to take the
mode_config lock), but in the end we need to grab the new fb_lock to
remove the fb from the list. The easiest solution is to add another
mutex to protect this per-file list.
Currently that new fbs_lock nests within the modeset locks and so
appears redudant. But later patches will switch around this sequence
so that taking the modeset locks in the fb destruction path is
optional in the fastpath. Ultimately the goal is that addfb and rmfb
do not require the mode_config lock, since otherwise they have the
potential to introduce stalls in the pageflip sequence of a compositor
(if the compositor e.g. switches to a fullscreen client or if it
enables a plane). But that requires a few more steps and hoops to jump
through.
Note that framebuffer creation/destruction is now double-protected -
once by the fb_lock and in parts by the idr_lock. The later would be
unnecessariy if framebuffers would have their own idr allocator. But
that's material for another patch (series).
v2: Properly initialize the fb->filp_head list in _init, otherwise the
newly added WARN to check whether the fb isn't on a fpriv list any
more will fail for driver-private objects.
v3: Fixup two error-case unlock bugs spotted by Richard Wilbur.
Reviewed-by: Rob Clark <rob@ti.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-12-10 20:19:18 +00:00
|
|
|
/* handle this in 4 parts */
|
|
|
|
/* FBs */
|
|
|
|
if (card_res->count_fbs >= fb_count) {
|
|
|
|
copied = 0;
|
|
|
|
fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
|
|
|
|
list_for_each_entry(fb, &file_priv->fbs, filp_head) {
|
|
|
|
if (put_user(fb->base.id, fb_id + copied)) {
|
|
|
|
mutex_unlock(&file_priv->fbs_lock);
|
|
|
|
return -EFAULT;
|
|
|
|
}
|
|
|
|
copied++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
card_res->count_fbs = fb_count;
|
|
|
|
mutex_unlock(&file_priv->fbs_lock);
|
|
|
|
|
2014-11-12 07:45:01 +00:00
|
|
|
/* mode_config.mutex protects the connector list against e.g. DP MST
|
|
|
|
* connector hot-adding. CRTC/Plane lists are invariant. */
|
|
|
|
mutex_lock(&dev->mode_config.mutex);
|
2015-07-09 21:44:36 +00:00
|
|
|
drm_for_each_crtc(crtc, dev)
|
|
|
|
crtc_count++;
|
2008-11-07 22:05:41 +00:00
|
|
|
|
2015-07-09 21:44:36 +00:00
|
|
|
drm_for_each_connector(connector, dev)
|
|
|
|
connector_count++;
|
2008-11-07 22:05:41 +00:00
|
|
|
|
2015-07-09 21:44:36 +00:00
|
|
|
drm_for_each_encoder(encoder, dev)
|
|
|
|
encoder_count++;
|
2008-11-07 22:05:41 +00:00
|
|
|
|
|
|
|
card_res->max_height = dev->mode_config.max_height;
|
|
|
|
card_res->min_height = dev->mode_config.min_height;
|
|
|
|
card_res->max_width = dev->mode_config.max_width;
|
|
|
|
card_res->min_width = dev->mode_config.min_width;
|
|
|
|
|
|
|
|
/* CRTCs */
|
|
|
|
if (card_res->count_crtcs >= crtc_count) {
|
|
|
|
copied = 0;
|
|
|
|
crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
|
2015-07-09 21:44:36 +00:00
|
|
|
drm_for_each_crtc(crtc, dev) {
|
|
|
|
if (put_user(crtc->base.id, crtc_id + copied)) {
|
|
|
|
ret = -EFAULT;
|
|
|
|
goto out;
|
2008-11-07 22:05:41 +00:00
|
|
|
}
|
2015-07-09 21:44:36 +00:00
|
|
|
copied++;
|
2008-11-07 22:05:41 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
card_res->count_crtcs = crtc_count;
|
|
|
|
|
|
|
|
/* Encoders */
|
|
|
|
if (card_res->count_encoders >= encoder_count) {
|
|
|
|
copied = 0;
|
|
|
|
encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
|
2015-07-09 21:44:36 +00:00
|
|
|
drm_for_each_encoder(encoder, dev) {
|
|
|
|
if (put_user(encoder->base.id, encoder_id +
|
|
|
|
copied)) {
|
|
|
|
ret = -EFAULT;
|
|
|
|
goto out;
|
2008-11-07 22:05:41 +00:00
|
|
|
}
|
2015-07-09 21:44:36 +00:00
|
|
|
copied++;
|
2008-11-07 22:05:41 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
card_res->count_encoders = encoder_count;
|
|
|
|
|
|
|
|
/* Connectors */
|
|
|
|
if (card_res->count_connectors >= connector_count) {
|
|
|
|
copied = 0;
|
|
|
|
connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
|
2015-07-09 21:44:36 +00:00
|
|
|
drm_for_each_connector(connector, dev) {
|
|
|
|
if (put_user(connector->base.id,
|
|
|
|
connector_id + copied)) {
|
|
|
|
ret = -EFAULT;
|
|
|
|
goto out;
|
2008-11-07 22:05:41 +00:00
|
|
|
}
|
2015-07-09 21:44:36 +00:00
|
|
|
copied++;
|
2008-11-07 22:05:41 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
card_res->count_connectors = connector_count;
|
|
|
|
|
|
|
|
out:
|
2014-11-12 07:45:01 +00:00
|
|
|
mutex_unlock(&dev->mode_config.mutex);
|
2008-11-07 22:05:41 +00:00
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* drm_mode_getcrtc - get CRTC configuration
|
2012-12-01 23:09:18 +00:00
|
|
|
* @dev: drm device for the ioctl
|
|
|
|
* @data: data pointer for the ioctl
|
|
|
|
* @file_priv: drm file for the ioctl call
|
2008-11-07 22:05:41 +00:00
|
|
|
*
|
|
|
|
* Construct a CRTC configuration structure to return to the user.
|
|
|
|
*
|
|
|
|
* Called by the user via ioctl.
|
|
|
|
*
|
2014-03-10 20:33:02 +00:00
|
|
|
* Returns:
|
2014-11-19 17:38:09 +00:00
|
|
|
* Zero on success, negative errno on failure.
|
2008-11-07 22:05:41 +00:00
|
|
|
*/
|
|
|
|
int drm_mode_getcrtc(struct drm_device *dev,
|
|
|
|
void *data, struct drm_file *file_priv)
|
|
|
|
{
|
|
|
|
struct drm_mode_crtc *crtc_resp = data;
|
|
|
|
struct drm_crtc *crtc;
|
|
|
|
|
2011-02-08 03:55:21 +00:00
|
|
|
if (!drm_core_check_feature(dev, DRIVER_MODESET))
|
|
|
|
return -EINVAL;
|
|
|
|
|
2013-10-05 20:36:52 +00:00
|
|
|
crtc = drm_crtc_find(dev, crtc_resp->crtc_id);
|
2014-11-12 07:45:01 +00:00
|
|
|
if (!crtc)
|
|
|
|
return -ENOENT;
|
2008-11-07 22:05:41 +00:00
|
|
|
|
2014-11-12 07:45:01 +00:00
|
|
|
drm_modeset_lock_crtc(crtc, crtc->primary);
|
2008-11-07 22:05:41 +00:00
|
|
|
crtc_resp->gamma_size = crtc->gamma_size;
|
2014-04-01 22:22:40 +00:00
|
|
|
if (crtc->primary->fb)
|
|
|
|
crtc_resp->fb_id = crtc->primary->fb->base.id;
|
2008-11-07 22:05:41 +00:00
|
|
|
else
|
|
|
|
crtc_resp->fb_id = 0;
|
|
|
|
|
2015-02-22 11:24:17 +00:00
|
|
|
if (crtc->state) {
|
|
|
|
crtc_resp->x = crtc->primary->state->src_x >> 16;
|
|
|
|
crtc_resp->y = crtc->primary->state->src_y >> 16;
|
|
|
|
if (crtc->state->enable) {
|
2015-05-22 12:34:48 +00:00
|
|
|
drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->state->mode);
|
2015-02-22 11:24:17 +00:00
|
|
|
crtc_resp->mode_valid = 1;
|
2008-11-07 22:05:41 +00:00
|
|
|
|
2015-02-22 11:24:17 +00:00
|
|
|
} else {
|
|
|
|
crtc_resp->mode_valid = 0;
|
|
|
|
}
|
2008-11-07 22:05:41 +00:00
|
|
|
} else {
|
2015-02-22 11:24:17 +00:00
|
|
|
crtc_resp->x = crtc->x;
|
|
|
|
crtc_resp->y = crtc->y;
|
|
|
|
if (crtc->enabled) {
|
2015-05-22 12:34:48 +00:00
|
|
|
drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->mode);
|
2015-02-22 11:24:17 +00:00
|
|
|
crtc_resp->mode_valid = 1;
|
|
|
|
|
|
|
|
} else {
|
|
|
|
crtc_resp->mode_valid = 0;
|
|
|
|
}
|
2008-11-07 22:05:41 +00:00
|
|
|
}
|
2014-11-12 07:45:01 +00:00
|
|
|
drm_modeset_unlock_crtc(crtc);
|
2008-11-07 22:05:41 +00:00
|
|
|
|
2014-11-12 10:59:47 +00:00
|
|
|
return 0;
|
2008-11-07 22:05:41 +00:00
|
|
|
}
|
|
|
|
|
2011-11-14 22:51:27 +00:00
|
|
|
/**
|
2014-03-10 20:33:02 +00:00
|
|
|
* drm_mode_getplane_res - enumerate all plane resources
|
2011-11-14 22:51:27 +00:00
|
|
|
* @dev: DRM device
|
|
|
|
* @data: ioctl data
|
|
|
|
* @file_priv: DRM file info
|
|
|
|
*
|
2014-03-10 20:33:02 +00:00
|
|
|
* Construct a list of plane ids to return to the user.
|
|
|
|
*
|
|
|
|
* Called by the user via ioctl.
|
|
|
|
*
|
|
|
|
* Returns:
|
2014-11-19 17:38:09 +00:00
|
|
|
* Zero on success, negative errno on failure.
|
2011-11-14 22:51:27 +00:00
|
|
|
*/
|
|
|
|
int drm_mode_getplane_res(struct drm_device *dev, void *data,
|
2014-03-10 20:33:02 +00:00
|
|
|
struct drm_file *file_priv)
|
2011-11-14 22:51:27 +00:00
|
|
|
{
|
|
|
|
struct drm_mode_get_plane_res *plane_resp = data;
|
|
|
|
struct drm_mode_config *config;
|
|
|
|
struct drm_plane *plane;
|
|
|
|
uint32_t __user *plane_ptr;
|
2014-11-12 07:45:01 +00:00
|
|
|
int copied = 0;
|
2014-04-01 22:22:42 +00:00
|
|
|
unsigned num_planes;
|
2011-11-14 22:51:27 +00:00
|
|
|
|
|
|
|
if (!drm_core_check_feature(dev, DRIVER_MODESET))
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
config = &dev->mode_config;
|
|
|
|
|
2014-04-01 22:22:42 +00:00
|
|
|
if (file_priv->universal_planes)
|
|
|
|
num_planes = config->num_total_plane;
|
|
|
|
else
|
|
|
|
num_planes = config->num_overlay_plane;
|
|
|
|
|
2011-11-14 22:51:27 +00:00
|
|
|
/*
|
|
|
|
* This ioctl is called twice, once to determine how much space is
|
|
|
|
* needed, and the 2nd time to fill it.
|
|
|
|
*/
|
2014-04-01 22:22:42 +00:00
|
|
|
if (num_planes &&
|
|
|
|
(plane_resp->count_planes >= num_planes)) {
|
2011-12-19 22:06:42 +00:00
|
|
|
plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr;
|
2011-11-14 22:51:27 +00:00
|
|
|
|
2014-11-12 07:45:01 +00:00
|
|
|
/* Plane lists are invariant, no locking needed. */
|
2015-07-09 21:44:35 +00:00
|
|
|
drm_for_each_plane(plane, dev) {
|
2014-04-01 22:22:42 +00:00
|
|
|
/*
|
|
|
|
* Unless userspace set the 'universal planes'
|
|
|
|
* capability bit, only advertise overlays.
|
|
|
|
*/
|
|
|
|
if (plane->type != DRM_PLANE_TYPE_OVERLAY &&
|
|
|
|
!file_priv->universal_planes)
|
2014-04-01 22:22:30 +00:00
|
|
|
continue;
|
|
|
|
|
2014-11-12 07:45:01 +00:00
|
|
|
if (put_user(plane->base.id, plane_ptr + copied))
|
|
|
|
return -EFAULT;
|
2011-11-14 22:51:27 +00:00
|
|
|
copied++;
|
|
|
|
}
|
|
|
|
}
|
2014-04-01 22:22:42 +00:00
|
|
|
plane_resp->count_planes = num_planes;
|
2011-11-14 22:51:27 +00:00
|
|
|
|
2014-11-12 07:45:01 +00:00
|
|
|
return 0;
|
2011-11-14 22:51:27 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
2014-03-10 20:33:02 +00:00
|
|
|
* drm_mode_getplane - get plane configuration
|
2011-11-14 22:51:27 +00:00
|
|
|
* @dev: DRM device
|
|
|
|
* @data: ioctl data
|
|
|
|
* @file_priv: DRM file info
|
|
|
|
*
|
2014-03-10 20:33:02 +00:00
|
|
|
* Construct a plane configuration structure to return to the user.
|
|
|
|
*
|
|
|
|
* Called by the user via ioctl.
|
|
|
|
*
|
|
|
|
* Returns:
|
2014-11-19 17:38:09 +00:00
|
|
|
* Zero on success, negative errno on failure.
|
2011-11-14 22:51:27 +00:00
|
|
|
*/
|
|
|
|
int drm_mode_getplane(struct drm_device *dev, void *data,
|
2014-03-10 20:33:02 +00:00
|
|
|
struct drm_file *file_priv)
|
2011-11-14 22:51:27 +00:00
|
|
|
{
|
|
|
|
struct drm_mode_get_plane *plane_resp = data;
|
|
|
|
struct drm_plane *plane;
|
|
|
|
uint32_t __user *format_ptr;
|
|
|
|
|
|
|
|
if (!drm_core_check_feature(dev, DRIVER_MODESET))
|
|
|
|
return -EINVAL;
|
|
|
|
|
2013-10-05 20:36:52 +00:00
|
|
|
plane = drm_plane_find(dev, plane_resp->plane_id);
|
2014-11-12 07:45:01 +00:00
|
|
|
if (!plane)
|
|
|
|
return -ENOENT;
|
2011-11-14 22:51:27 +00:00
|
|
|
|
2014-11-12 07:45:01 +00:00
|
|
|
drm_modeset_lock(&plane->mutex, NULL);
|
2011-11-14 22:51:27 +00:00
|
|
|
if (plane->crtc)
|
|
|
|
plane_resp->crtc_id = plane->crtc->base.id;
|
|
|
|
else
|
|
|
|
plane_resp->crtc_id = 0;
|
|
|
|
|
|
|
|
if (plane->fb)
|
|
|
|
plane_resp->fb_id = plane->fb->base.id;
|
|
|
|
else
|
|
|
|
plane_resp->fb_id = 0;
|
2014-11-12 07:45:01 +00:00
|
|
|
drm_modeset_unlock(&plane->mutex);
|
2011-11-14 22:51:27 +00:00
|
|
|
|
|
|
|
plane_resp->plane_id = plane->base.id;
|
|
|
|
plane_resp->possible_crtcs = plane->possible_crtcs;
|
2013-06-03 13:11:42 +00:00
|
|
|
plane_resp->gamma_size = 0;
|
2011-11-14 22:51:27 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* This ioctl is called twice, once to determine how much space is
|
|
|
|
* needed, and the 2nd time to fill it.
|
|
|
|
*/
|
|
|
|
if (plane->format_count &&
|
|
|
|
(plane_resp->count_format_types >= plane->format_count)) {
|
2011-12-19 22:06:42 +00:00
|
|
|
format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr;
|
2011-11-14 22:51:27 +00:00
|
|
|
if (copy_to_user(format_ptr,
|
|
|
|
plane->format_types,
|
|
|
|
sizeof(uint32_t) * plane->format_count)) {
|
2014-11-12 07:45:01 +00:00
|
|
|
return -EFAULT;
|
2011-11-14 22:51:27 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
plane_resp->count_format_types = plane->format_count;
|
|
|
|
|
2014-11-12 10:59:47 +00:00
|
|
|
return 0;
|
2011-11-14 22:51:27 +00:00
|
|
|
}
|
|
|
|
|
2015-03-05 00:25:43 +00:00
|
|
|
/**
|
|
|
|
* drm_plane_check_pixel_format - Check if the plane supports the pixel format
|
|
|
|
* @plane: plane to check for format support
|
|
|
|
* @format: the pixel format
|
|
|
|
*
|
|
|
|
* Returns:
|
|
|
|
* Zero of @plane has @format in its list of supported pixel formats, -EINVAL
|
|
|
|
* otherwise.
|
|
|
|
*/
|
|
|
|
int drm_plane_check_pixel_format(const struct drm_plane *plane, u32 format)
|
|
|
|
{
|
|
|
|
unsigned int i;
|
|
|
|
|
|
|
|
for (i = 0; i < plane->format_count; i++) {
|
|
|
|
if (format == plane->format_types[i])
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
2015-10-15 17:40:00 +00:00
|
|
|
static int check_src_coords(uint32_t src_x, uint32_t src_y,
|
|
|
|
uint32_t src_w, uint32_t src_h,
|
|
|
|
const struct drm_framebuffer *fb)
|
|
|
|
{
|
|
|
|
unsigned int fb_width, fb_height;
|
|
|
|
|
|
|
|
fb_width = fb->width << 16;
|
|
|
|
fb_height = fb->height << 16;
|
|
|
|
|
|
|
|
/* Make sure source coordinates are inside the fb. */
|
|
|
|
if (src_w > fb_width ||
|
|
|
|
src_x > fb_width - src_w ||
|
|
|
|
src_h > fb_height ||
|
|
|
|
src_y > fb_height - src_h) {
|
|
|
|
DRM_DEBUG_KMS("Invalid source coordinates "
|
|
|
|
"%u.%06ux%u.%06u+%u.%06u+%u.%06u\n",
|
|
|
|
src_w >> 16, ((src_w & 0xffff) * 15625) >> 10,
|
|
|
|
src_h >> 16, ((src_h & 0xffff) * 15625) >> 10,
|
|
|
|
src_x >> 16, ((src_x & 0xffff) * 15625) >> 10,
|
|
|
|
src_y >> 16, ((src_y & 0xffff) * 15625) >> 10);
|
|
|
|
return -ENOSPC;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2014-06-10 15:28:09 +00:00
|
|
|
/*
|
|
|
|
* setplane_internal - setplane handler for internal callers
|
2011-11-14 22:51:27 +00:00
|
|
|
*
|
2014-06-10 15:28:09 +00:00
|
|
|
* Note that we assume an extra reference has already been taken on fb. If the
|
|
|
|
* update fails, this reference will be dropped before return; if it succeeds,
|
|
|
|
* the previous framebuffer (if any) will be unreferenced instead.
|
2014-03-10 20:33:02 +00:00
|
|
|
*
|
2014-06-10 15:28:09 +00:00
|
|
|
* src_{x,y,w,h} are provided in 16.16 fixed point format
|
2011-11-14 22:51:27 +00:00
|
|
|
*/
|
2014-09-12 15:07:32 +00:00
|
|
|
static int __setplane_internal(struct drm_plane *plane,
|
|
|
|
struct drm_crtc *crtc,
|
|
|
|
struct drm_framebuffer *fb,
|
|
|
|
int32_t crtc_x, int32_t crtc_y,
|
|
|
|
uint32_t crtc_w, uint32_t crtc_h,
|
|
|
|
/* src_{x,y,w,h} values are 16.16 fixed point */
|
|
|
|
uint32_t src_x, uint32_t src_y,
|
|
|
|
uint32_t src_w, uint32_t src_h)
|
2011-11-14 22:51:27 +00:00
|
|
|
{
|
|
|
|
int ret = 0;
|
|
|
|
|
|
|
|
/* No fb means shut it down */
|
2014-06-10 15:28:09 +00:00
|
|
|
if (!fb) {
|
2014-07-27 11:42:42 +00:00
|
|
|
plane->old_fb = plane->fb;
|
2014-04-23 08:24:11 +00:00
|
|
|
ret = plane->funcs->disable_plane(plane);
|
|
|
|
if (!ret) {
|
|
|
|
plane->crtc = NULL;
|
|
|
|
plane->fb = NULL;
|
|
|
|
} else {
|
2014-07-27 11:42:42 +00:00
|
|
|
plane->old_fb = NULL;
|
2014-04-23 08:24:11 +00:00
|
|
|
}
|
2011-11-14 22:51:27 +00:00
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
2014-05-29 15:06:51 +00:00
|
|
|
/* Check whether this plane is usable on this CRTC */
|
|
|
|
if (!(plane->possible_crtcs & drm_crtc_mask(crtc))) {
|
|
|
|
DRM_DEBUG_KMS("Invalid crtc for plane\n");
|
|
|
|
ret = -EINVAL;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
2011-12-19 22:06:47 +00:00
|
|
|
/* Check whether this plane supports the fb pixel format. */
|
2015-03-05 00:25:43 +00:00
|
|
|
ret = drm_plane_check_pixel_format(plane, fb->pixel_format);
|
|
|
|
if (ret) {
|
2016-08-15 15:29:55 +00:00
|
|
|
char *format_name = drm_get_format_name(fb->pixel_format);
|
2016-08-15 00:02:38 +00:00
|
|
|
DRM_DEBUG_KMS("Invalid pixel format %s\n", format_name);
|
|
|
|
kfree(format_name);
|
2011-12-19 22:06:47 +00:00
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
2015-04-13 18:06:13 +00:00
|
|
|
/* Give drivers some help against integer overflows */
|
|
|
|
if (crtc_w > INT_MAX ||
|
|
|
|
crtc_x > INT_MAX - (int32_t) crtc_w ||
|
|
|
|
crtc_h > INT_MAX ||
|
|
|
|
crtc_y > INT_MAX - (int32_t) crtc_h) {
|
|
|
|
DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n",
|
|
|
|
crtc_w, crtc_h, crtc_x, crtc_y);
|
2015-10-15 17:39:58 +00:00
|
|
|
ret = -ERANGE;
|
|
|
|
goto out;
|
2015-04-13 18:06:13 +00:00
|
|
|
}
|
|
|
|
|
2015-10-15 17:40:00 +00:00
|
|
|
ret = check_src_coords(src_x, src_y, src_w, src_h, fb);
|
|
|
|
if (ret)
|
2011-12-19 22:06:44 +00:00
|
|
|
goto out;
|
|
|
|
|
2014-07-27 11:42:42 +00:00
|
|
|
plane->old_fb = plane->fb;
|
2011-11-14 22:51:27 +00:00
|
|
|
ret = plane->funcs->update_plane(plane, crtc, fb,
|
2014-06-10 15:28:09 +00:00
|
|
|
crtc_x, crtc_y, crtc_w, crtc_h,
|
|
|
|
src_x, src_y, src_w, src_h);
|
2011-11-14 22:51:27 +00:00
|
|
|
if (!ret) {
|
|
|
|
plane->crtc = crtc;
|
|
|
|
plane->fb = fb;
|
2013-02-15 20:21:37 +00:00
|
|
|
fb = NULL;
|
2014-04-23 15:34:06 +00:00
|
|
|
} else {
|
2014-07-27 11:42:42 +00:00
|
|
|
plane->old_fb = NULL;
|
2011-11-14 22:51:27 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
out:
|
2012-12-10 23:59:24 +00:00
|
|
|
if (fb)
|
|
|
|
drm_framebuffer_unreference(fb);
|
2014-07-27 11:42:42 +00:00
|
|
|
if (plane->old_fb)
|
|
|
|
drm_framebuffer_unreference(plane->old_fb);
|
|
|
|
plane->old_fb = NULL;
|
2011-11-14 22:51:27 +00:00
|
|
|
|
|
|
|
return ret;
|
2014-09-12 15:07:32 +00:00
|
|
|
}
|
2014-06-10 15:28:09 +00:00
|
|
|
|
2014-09-12 15:07:32 +00:00
|
|
|
static int setplane_internal(struct drm_plane *plane,
|
|
|
|
struct drm_crtc *crtc,
|
|
|
|
struct drm_framebuffer *fb,
|
|
|
|
int32_t crtc_x, int32_t crtc_y,
|
|
|
|
uint32_t crtc_w, uint32_t crtc_h,
|
|
|
|
/* src_{x,y,w,h} values are 16.16 fixed point */
|
|
|
|
uint32_t src_x, uint32_t src_y,
|
|
|
|
uint32_t src_w, uint32_t src_h)
|
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
drm_modeset_lock_all(plane->dev);
|
|
|
|
ret = __setplane_internal(plane, crtc, fb,
|
|
|
|
crtc_x, crtc_y, crtc_w, crtc_h,
|
|
|
|
src_x, src_y, src_w, src_h);
|
|
|
|
drm_modeset_unlock_all(plane->dev);
|
|
|
|
|
|
|
|
return ret;
|
2014-06-10 15:28:09 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* drm_mode_setplane - configure a plane's configuration
|
|
|
|
* @dev: DRM device
|
|
|
|
* @data: ioctl data*
|
|
|
|
* @file_priv: DRM file info
|
|
|
|
*
|
|
|
|
* Set plane configuration, including placement, fb, scaling, and other factors.
|
|
|
|
* Or pass a NULL fb to disable (planes may be disabled without providing a
|
|
|
|
* valid crtc).
|
|
|
|
*
|
|
|
|
* Returns:
|
2014-11-19 17:38:09 +00:00
|
|
|
* Zero on success, negative errno on failure.
|
2014-06-10 15:28:09 +00:00
|
|
|
*/
|
|
|
|
int drm_mode_setplane(struct drm_device *dev, void *data,
|
|
|
|
struct drm_file *file_priv)
|
|
|
|
{
|
|
|
|
struct drm_mode_set_plane *plane_req = data;
|
|
|
|
struct drm_plane *plane;
|
|
|
|
struct drm_crtc *crtc = NULL;
|
|
|
|
struct drm_framebuffer *fb = NULL;
|
|
|
|
|
|
|
|
if (!drm_core_check_feature(dev, DRIVER_MODESET))
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* First, find the plane, crtc, and fb objects. If not available,
|
|
|
|
* we don't bother to call the driver.
|
|
|
|
*/
|
2014-11-26 01:33:11 +00:00
|
|
|
plane = drm_plane_find(dev, plane_req->plane_id);
|
|
|
|
if (!plane) {
|
2014-06-10 15:28:09 +00:00
|
|
|
DRM_DEBUG_KMS("Unknown plane ID %d\n",
|
|
|
|
plane_req->plane_id);
|
|
|
|
return -ENOENT;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (plane_req->fb_id) {
|
|
|
|
fb = drm_framebuffer_lookup(dev, plane_req->fb_id);
|
|
|
|
if (!fb) {
|
|
|
|
DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",
|
|
|
|
plane_req->fb_id);
|
|
|
|
return -ENOENT;
|
|
|
|
}
|
|
|
|
|
2014-11-26 01:33:11 +00:00
|
|
|
crtc = drm_crtc_find(dev, plane_req->crtc_id);
|
|
|
|
if (!crtc) {
|
2014-06-10 15:28:09 +00:00
|
|
|
DRM_DEBUG_KMS("Unknown crtc ID %d\n",
|
|
|
|
plane_req->crtc_id);
|
|
|
|
return -ENOENT;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2014-06-10 15:28:10 +00:00
|
|
|
/*
|
|
|
|
* setplane_internal will take care of deref'ing either the old or new
|
|
|
|
* framebuffer depending on success.
|
|
|
|
*/
|
2014-06-13 14:22:28 +00:00
|
|
|
return setplane_internal(plane, crtc, fb,
|
2014-06-10 15:28:09 +00:00
|
|
|
plane_req->crtc_x, plane_req->crtc_y,
|
|
|
|
plane_req->crtc_w, plane_req->crtc_h,
|
|
|
|
plane_req->src_x, plane_req->src_y,
|
|
|
|
plane_req->src_w, plane_req->src_h);
|
2011-11-14 22:51:27 +00:00
|
|
|
}
|
|
|
|
|
2012-12-11 12:47:23 +00:00
|
|
|
/**
|
|
|
|
* drm_mode_set_config_internal - helper to call ->set_config
|
|
|
|
* @set: modeset config to set
|
|
|
|
*
|
|
|
|
* This is a little helper to wrap internal calls to the ->set_config driver
|
|
|
|
* interface. The only thing it adds is correct refcounting dance.
|
2014-12-10 12:03:34 +00:00
|
|
|
*
|
2014-03-10 20:33:02 +00:00
|
|
|
* Returns:
|
2014-11-19 17:38:09 +00:00
|
|
|
* Zero on success, negative errno on failure.
|
2012-12-11 12:47:23 +00:00
|
|
|
*/
|
|
|
|
int drm_mode_set_config_internal(struct drm_mode_set *set)
|
|
|
|
{
|
|
|
|
struct drm_crtc *crtc = set->crtc;
|
2013-06-14 22:13:16 +00:00
|
|
|
struct drm_framebuffer *fb;
|
|
|
|
struct drm_crtc *tmp;
|
2012-12-11 00:07:12 +00:00
|
|
|
int ret;
|
|
|
|
|
2013-06-14 22:13:16 +00:00
|
|
|
/*
|
|
|
|
* NOTE: ->set_config can also disable other crtcs (if we steal all
|
|
|
|
* connectors from it), hence we need to refcount the fbs across all
|
|
|
|
* crtcs. Atomic modeset will have saner semantics ...
|
|
|
|
*/
|
2015-07-09 21:44:35 +00:00
|
|
|
drm_for_each_crtc(tmp, crtc->dev)
|
2014-07-27 11:42:42 +00:00
|
|
|
tmp->primary->old_fb = tmp->primary->fb;
|
2013-06-14 22:13:16 +00:00
|
|
|
|
2012-12-11 00:07:12 +00:00
|
|
|
fb = set->fb;
|
2012-12-11 12:47:23 +00:00
|
|
|
|
2012-12-11 00:07:12 +00:00
|
|
|
ret = crtc->funcs->set_config(set);
|
|
|
|
if (ret == 0) {
|
2014-04-01 22:22:38 +00:00
|
|
|
crtc->primary->crtc = crtc;
|
2014-04-23 15:34:06 +00:00
|
|
|
crtc->primary->fb = fb;
|
2013-06-14 22:13:16 +00:00
|
|
|
}
|
2013-06-14 22:13:15 +00:00
|
|
|
|
2015-07-09 21:44:35 +00:00
|
|
|
drm_for_each_crtc(tmp, crtc->dev) {
|
2014-04-01 22:22:40 +00:00
|
|
|
if (tmp->primary->fb)
|
|
|
|
drm_framebuffer_reference(tmp->primary->fb);
|
2014-07-27 11:42:42 +00:00
|
|
|
if (tmp->primary->old_fb)
|
|
|
|
drm_framebuffer_unreference(tmp->primary->old_fb);
|
|
|
|
tmp->primary->old_fb = NULL;
|
2012-12-11 00:07:12 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
return ret;
|
2012-12-11 12:47:23 +00:00
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(drm_mode_set_config_internal);
|
|
|
|
|
2014-12-01 23:40:09 +00:00
|
|
|
/**
|
|
|
|
* drm_crtc_get_hv_timing - Fetches hdisplay/vdisplay for given mode
|
|
|
|
* @mode: mode to query
|
|
|
|
* @hdisplay: hdisplay value to fill in
|
|
|
|
* @vdisplay: vdisplay value to fill in
|
|
|
|
*
|
|
|
|
* The vdisplay value will be doubled if the specified mode is a stereo mode of
|
|
|
|
* the appropriate layout.
|
|
|
|
*/
|
|
|
|
void drm_crtc_get_hv_timing(const struct drm_display_mode *mode,
|
|
|
|
int *hdisplay, int *vdisplay)
|
|
|
|
{
|
|
|
|
struct drm_display_mode adjusted;
|
|
|
|
|
|
|
|
drm_mode_copy(&adjusted, mode);
|
|
|
|
drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE_ONLY);
|
|
|
|
*hdisplay = adjusted.crtc_hdisplay;
|
|
|
|
*vdisplay = adjusted.crtc_vdisplay;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(drm_crtc_get_hv_timing);
|
|
|
|
|
2014-04-01 22:22:34 +00:00
|
|
|
/**
|
|
|
|
* drm_crtc_check_viewport - Checks that a framebuffer is big enough for the
|
|
|
|
* CRTC viewport
|
|
|
|
* @crtc: CRTC that framebuffer will be displayed on
|
|
|
|
* @x: x panning
|
|
|
|
* @y: y panning
|
|
|
|
* @mode: mode that framebuffer will be displayed under
|
|
|
|
* @fb: framebuffer to check size of
|
2013-09-25 15:45:30 +00:00
|
|
|
*/
|
2014-04-01 22:22:34 +00:00
|
|
|
int drm_crtc_check_viewport(const struct drm_crtc *crtc,
|
|
|
|
int x, int y,
|
|
|
|
const struct drm_display_mode *mode,
|
|
|
|
const struct drm_framebuffer *fb)
|
2013-09-25 15:45:30 +00:00
|
|
|
|
|
|
|
{
|
|
|
|
int hdisplay, vdisplay;
|
|
|
|
|
2014-12-01 23:40:09 +00:00
|
|
|
drm_crtc_get_hv_timing(mode, &hdisplay, &vdisplay);
|
2013-09-25 15:45:31 +00:00
|
|
|
|
2015-10-16 15:38:39 +00:00
|
|
|
if (crtc->state &&
|
2016-07-29 05:50:05 +00:00
|
|
|
crtc->primary->state->rotation & (DRM_ROTATE_90 |
|
|
|
|
DRM_ROTATE_270))
|
2013-09-25 15:45:30 +00:00
|
|
|
swap(hdisplay, vdisplay);
|
|
|
|
|
2015-10-15 17:40:00 +00:00
|
|
|
return check_src_coords(x << 16, y << 16,
|
|
|
|
hdisplay << 16, vdisplay << 16, fb);
|
2013-09-25 15:45:30 +00:00
|
|
|
}
|
2014-04-01 22:22:34 +00:00
|
|
|
EXPORT_SYMBOL(drm_crtc_check_viewport);
|
2013-09-25 15:45:30 +00:00
|
|
|
|
2008-11-07 22:05:41 +00:00
|
|
|
/**
|
|
|
|
* drm_mode_setcrtc - set CRTC configuration
|
2012-12-01 23:09:18 +00:00
|
|
|
* @dev: drm device for the ioctl
|
|
|
|
* @data: data pointer for the ioctl
|
|
|
|
* @file_priv: drm file for the ioctl call
|
2008-11-07 22:05:41 +00:00
|
|
|
*
|
|
|
|
* Build a new CRTC configuration based on user request.
|
|
|
|
*
|
|
|
|
* Called by the user via ioctl.
|
|
|
|
*
|
2014-03-10 20:33:02 +00:00
|
|
|
* Returns:
|
2014-11-19 17:38:09 +00:00
|
|
|
* Zero on success, negative errno on failure.
|
2008-11-07 22:05:41 +00:00
|
|
|
*/
|
|
|
|
int drm_mode_setcrtc(struct drm_device *dev, void *data,
|
|
|
|
struct drm_file *file_priv)
|
|
|
|
{
|
|
|
|
struct drm_mode_config *config = &dev->mode_config;
|
|
|
|
struct drm_mode_crtc *crtc_req = data;
|
2012-03-13 10:35:38 +00:00
|
|
|
struct drm_crtc *crtc;
|
2008-11-07 22:05:41 +00:00
|
|
|
struct drm_connector **connector_set = NULL, *connector;
|
|
|
|
struct drm_framebuffer *fb = NULL;
|
|
|
|
struct drm_display_mode *mode = NULL;
|
|
|
|
struct drm_mode_set set;
|
|
|
|
uint32_t __user *set_connectors_ptr;
|
2012-05-17 11:27:21 +00:00
|
|
|
int ret;
|
2008-11-07 22:05:41 +00:00
|
|
|
int i;
|
|
|
|
|
2011-02-08 03:55:21 +00:00
|
|
|
if (!drm_core_check_feature(dev, DRIVER_MODESET))
|
|
|
|
return -EINVAL;
|
|
|
|
|
2015-07-07 09:08:35 +00:00
|
|
|
/*
|
|
|
|
* Universal plane src offsets are only 16.16, prevent havoc for
|
|
|
|
* drivers using universal plane code internally.
|
|
|
|
*/
|
|
|
|
if (crtc_req->x & 0xffff0000 || crtc_req->y & 0xffff0000)
|
2012-03-13 10:35:41 +00:00
|
|
|
return -ERANGE;
|
|
|
|
|
2012-12-01 23:28:11 +00:00
|
|
|
drm_modeset_lock_all(dev);
|
2013-10-05 20:36:52 +00:00
|
|
|
crtc = drm_crtc_find(dev, crtc_req->crtc_id);
|
|
|
|
if (!crtc) {
|
2009-07-20 05:48:07 +00:00
|
|
|
DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
|
2013-10-17 10:35:00 +00:00
|
|
|
ret = -ENOENT;
|
2008-11-07 22:05:41 +00:00
|
|
|
goto out;
|
|
|
|
}
|
2015-12-08 16:41:53 +00:00
|
|
|
DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.id, crtc->name);
|
2008-11-07 22:05:41 +00:00
|
|
|
|
|
|
|
if (crtc_req->mode_valid) {
|
|
|
|
/* If we have a mode we need a framebuffer. */
|
|
|
|
/* If we pass -1, set the mode with the currently bound fb */
|
|
|
|
if (crtc_req->fb_id == -1) {
|
2014-04-01 22:22:40 +00:00
|
|
|
if (!crtc->primary->fb) {
|
2012-03-13 10:35:38 +00:00
|
|
|
DRM_DEBUG_KMS("CRTC doesn't have current FB\n");
|
|
|
|
ret = -EINVAL;
|
|
|
|
goto out;
|
2008-11-07 22:05:41 +00:00
|
|
|
}
|
2014-04-01 22:22:40 +00:00
|
|
|
fb = crtc->primary->fb;
|
2012-12-11 00:07:12 +00:00
|
|
|
/* Make refcounting symmetric with the lookup path. */
|
|
|
|
drm_framebuffer_reference(fb);
|
2008-11-07 22:05:41 +00:00
|
|
|
} else {
|
2012-12-02 20:53:40 +00:00
|
|
|
fb = drm_framebuffer_lookup(dev, crtc_req->fb_id);
|
|
|
|
if (!fb) {
|
2009-07-20 05:48:07 +00:00
|
|
|
DRM_DEBUG_KMS("Unknown FB ID%d\n",
|
|
|
|
crtc_req->fb_id);
|
2013-10-17 10:35:01 +00:00
|
|
|
ret = -ENOENT;
|
2008-11-07 22:05:41 +00:00
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
mode = drm_mode_create(dev);
|
2012-03-13 10:35:43 +00:00
|
|
|
if (!mode) {
|
|
|
|
ret = -ENOMEM;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
2015-05-22 12:34:48 +00:00
|
|
|
ret = drm_mode_convert_umode(mode, &crtc_req->mode);
|
2012-03-13 10:35:44 +00:00
|
|
|
if (ret) {
|
|
|
|
DRM_DEBUG_KMS("Invalid mode\n");
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
2015-03-09 08:41:07 +00:00
|
|
|
/*
|
|
|
|
* Check whether the primary plane supports the fb pixel format.
|
|
|
|
* Drivers not implementing the universal planes API use a
|
|
|
|
* default formats list provided by the DRM core which doesn't
|
|
|
|
* match real hardware capabilities. Skip the check in that
|
|
|
|
* case.
|
|
|
|
*/
|
|
|
|
if (!crtc->primary->format_default) {
|
|
|
|
ret = drm_plane_check_pixel_format(crtc->primary,
|
|
|
|
fb->pixel_format);
|
|
|
|
if (ret) {
|
2016-08-15 15:29:55 +00:00
|
|
|
char *format_name = drm_get_format_name(fb->pixel_format);
|
2016-08-15 00:02:38 +00:00
|
|
|
DRM_DEBUG_KMS("Invalid pixel format %s\n", format_name);
|
|
|
|
kfree(format_name);
|
2015-03-09 08:41:07 +00:00
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2013-09-25 15:45:30 +00:00
|
|
|
ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y,
|
|
|
|
mode, fb);
|
|
|
|
if (ret)
|
2012-03-13 10:35:45 +00:00
|
|
|
goto out;
|
2013-09-25 15:45:30 +00:00
|
|
|
|
2008-11-07 22:05:41 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
if (crtc_req->count_connectors == 0 && mode) {
|
2009-07-20 05:48:07 +00:00
|
|
|
DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
|
2008-11-07 22:05:41 +00:00
|
|
|
ret = -EINVAL;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
2009-08-03 12:43:58 +00:00
|
|
|
if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
|
2009-07-20 05:48:07 +00:00
|
|
|
DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
|
2008-11-07 22:05:41 +00:00
|
|
|
crtc_req->count_connectors);
|
|
|
|
ret = -EINVAL;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (crtc_req->count_connectors > 0) {
|
|
|
|
u32 out_id;
|
|
|
|
|
|
|
|
/* Avoid unbounded kernel memory allocation */
|
|
|
|
if (crtc_req->count_connectors > config->num_connector) {
|
|
|
|
ret = -EINVAL;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
2014-12-10 12:03:36 +00:00
|
|
|
connector_set = kmalloc_array(crtc_req->count_connectors,
|
|
|
|
sizeof(struct drm_connector *),
|
|
|
|
GFP_KERNEL);
|
2008-11-07 22:05:41 +00:00
|
|
|
if (!connector_set) {
|
|
|
|
ret = -ENOMEM;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
for (i = 0; i < crtc_req->count_connectors; i++) {
|
2016-04-27 01:10:09 +00:00
|
|
|
connector_set[i] = NULL;
|
2011-12-19 22:06:42 +00:00
|
|
|
set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr;
|
2008-11-07 22:05:41 +00:00
|
|
|
if (get_user(out_id, &set_connectors_ptr[i])) {
|
|
|
|
ret = -EFAULT;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
2016-04-27 01:10:09 +00:00
|
|
|
connector = drm_connector_lookup(dev, out_id);
|
2013-10-05 20:36:52 +00:00
|
|
|
if (!connector) {
|
2009-07-20 05:48:07 +00:00
|
|
|
DRM_DEBUG_KMS("Connector id %d unknown\n",
|
|
|
|
out_id);
|
2013-10-17 10:35:00 +00:00
|
|
|
ret = -ENOENT;
|
2008-11-07 22:05:41 +00:00
|
|
|
goto out;
|
|
|
|
}
|
2010-07-15 19:43:25 +00:00
|
|
|
DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
|
|
|
|
connector->base.id,
|
2014-06-03 11:56:20 +00:00
|
|
|
connector->name);
|
2008-11-07 22:05:41 +00:00
|
|
|
|
|
|
|
connector_set[i] = connector;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
set.crtc = crtc;
|
|
|
|
set.x = crtc_req->x;
|
|
|
|
set.y = crtc_req->y;
|
|
|
|
set.mode = mode;
|
|
|
|
set.connectors = connector_set;
|
|
|
|
set.num_connectors = crtc_req->count_connectors;
|
2009-08-17 03:11:23 +00:00
|
|
|
set.fb = fb;
|
2012-12-11 12:47:23 +00:00
|
|
|
ret = drm_mode_set_config_internal(&set);
|
2008-11-07 22:05:41 +00:00
|
|
|
|
|
|
|
out:
|
2012-12-11 00:07:12 +00:00
|
|
|
if (fb)
|
|
|
|
drm_framebuffer_unreference(fb);
|
|
|
|
|
2016-04-27 01:10:09 +00:00
|
|
|
if (connector_set) {
|
|
|
|
for (i = 0; i < crtc_req->count_connectors; i++) {
|
|
|
|
if (connector_set[i])
|
|
|
|
drm_connector_unreference(connector_set[i]);
|
|
|
|
}
|
|
|
|
}
|
2008-11-07 22:05:41 +00:00
|
|
|
kfree(connector_set);
|
2012-03-13 10:35:43 +00:00
|
|
|
drm_mode_destroy(dev, mode);
|
2012-12-01 23:28:11 +00:00
|
|
|
drm_modeset_unlock_all(dev);
|
2008-11-07 22:05:41 +00:00
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2014-06-10 15:28:10 +00:00
|
|
|
/**
|
|
|
|
* drm_mode_cursor_universal - translate legacy cursor ioctl call into a
|
|
|
|
* universal plane handler call
|
|
|
|
* @crtc: crtc to update cursor for
|
|
|
|
* @req: data pointer for the ioctl
|
|
|
|
* @file_priv: drm file for the ioctl call
|
|
|
|
*
|
|
|
|
* Legacy cursor ioctl's work directly with driver buffer handles. To
|
|
|
|
* translate legacy ioctl calls into universal plane handler calls, we need to
|
|
|
|
* wrap the native buffer handle in a drm_framebuffer.
|
|
|
|
*
|
|
|
|
* Note that we assume any handle passed to the legacy ioctls was a 32-bit ARGB
|
|
|
|
* buffer with a pitch of 4*width; the universal plane interface should be used
|
|
|
|
* directly in cases where the hardware can support other buffer settings and
|
|
|
|
* userspace wants to make use of these capabilities.
|
|
|
|
*
|
|
|
|
* Returns:
|
2014-11-19 17:38:09 +00:00
|
|
|
* Zero on success, negative errno on failure.
|
2014-06-10 15:28:10 +00:00
|
|
|
*/
|
|
|
|
static int drm_mode_cursor_universal(struct drm_crtc *crtc,
|
|
|
|
struct drm_mode_cursor2 *req,
|
|
|
|
struct drm_file *file_priv)
|
|
|
|
{
|
|
|
|
struct drm_device *dev = crtc->dev;
|
|
|
|
struct drm_framebuffer *fb = NULL;
|
|
|
|
struct drm_mode_fb_cmd2 fbreq = {
|
|
|
|
.width = req->width,
|
|
|
|
.height = req->height,
|
|
|
|
.pixel_format = DRM_FORMAT_ARGB8888,
|
|
|
|
.pitches = { req->width * 4 },
|
|
|
|
.handles = { req->handle },
|
|
|
|
};
|
|
|
|
int32_t crtc_x, crtc_y;
|
|
|
|
uint32_t crtc_w = 0, crtc_h = 0;
|
|
|
|
uint32_t src_w = 0, src_h = 0;
|
|
|
|
int ret = 0;
|
|
|
|
|
|
|
|
BUG_ON(!crtc->cursor);
|
2014-09-12 15:07:32 +00:00
|
|
|
WARN_ON(crtc->cursor->crtc != crtc && crtc->cursor->crtc != NULL);
|
2014-06-10 15:28:10 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Obtain fb we'll be using (either new or existing) and take an extra
|
|
|
|
* reference to it if fb != null. setplane will take care of dropping
|
|
|
|
* the reference if the plane update fails.
|
|
|
|
*/
|
|
|
|
if (req->flags & DRM_MODE_CURSOR_BO) {
|
|
|
|
if (req->handle) {
|
2016-08-15 14:07:02 +00:00
|
|
|
fb = drm_internal_framebuffer_create(dev, &fbreq, file_priv);
|
2014-06-10 15:28:10 +00:00
|
|
|
if (IS_ERR(fb)) {
|
|
|
|
DRM_DEBUG_KMS("failed to wrap cursor buffer in drm framebuffer\n");
|
|
|
|
return PTR_ERR(fb);
|
|
|
|
}
|
2016-05-31 06:54:52 +00:00
|
|
|
fb->hot_x = req->hot_x;
|
|
|
|
fb->hot_y = req->hot_y;
|
2014-06-10 15:28:10 +00:00
|
|
|
} else {
|
|
|
|
fb = NULL;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
fb = crtc->cursor->fb;
|
|
|
|
if (fb)
|
|
|
|
drm_framebuffer_reference(fb);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (req->flags & DRM_MODE_CURSOR_MOVE) {
|
|
|
|
crtc_x = req->x;
|
|
|
|
crtc_y = req->y;
|
|
|
|
} else {
|
|
|
|
crtc_x = crtc->cursor_x;
|
|
|
|
crtc_y = crtc->cursor_y;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (fb) {
|
|
|
|
crtc_w = fb->width;
|
|
|
|
crtc_h = fb->height;
|
|
|
|
src_w = fb->width << 16;
|
|
|
|
src_h = fb->height << 16;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* setplane_internal will take care of deref'ing either the old or new
|
|
|
|
* framebuffer depending on success.
|
|
|
|
*/
|
2014-09-12 15:07:32 +00:00
|
|
|
ret = __setplane_internal(crtc->cursor, crtc, fb,
|
2014-06-10 15:28:10 +00:00
|
|
|
crtc_x, crtc_y, crtc_w, crtc_h,
|
|
|
|
0, 0, src_w, src_h);
|
|
|
|
|
|
|
|
/* Update successful; save new cursor position, if necessary */
|
|
|
|
if (ret == 0 && req->flags & DRM_MODE_CURSOR_MOVE) {
|
|
|
|
crtc->cursor_x = req->x;
|
|
|
|
crtc->cursor_y = req->y;
|
|
|
|
}
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2013-06-20 01:48:52 +00:00
|
|
|
static int drm_mode_cursor_common(struct drm_device *dev,
|
|
|
|
struct drm_mode_cursor2 *req,
|
|
|
|
struct drm_file *file_priv)
|
2008-11-07 22:05:41 +00:00
|
|
|
{
|
|
|
|
struct drm_crtc *crtc;
|
|
|
|
int ret = 0;
|
|
|
|
|
2011-02-08 03:55:21 +00:00
|
|
|
if (!drm_core_check_feature(dev, DRIVER_MODESET))
|
|
|
|
return -EINVAL;
|
|
|
|
|
2012-08-16 08:29:03 +00:00
|
|
|
if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags))
|
2008-11-07 22:05:41 +00:00
|
|
|
return -EINVAL;
|
|
|
|
|
2013-10-05 20:36:52 +00:00
|
|
|
crtc = drm_crtc_find(dev, req->crtc_id);
|
|
|
|
if (!crtc) {
|
2009-07-20 05:48:07 +00:00
|
|
|
DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
|
2013-10-17 10:35:00 +00:00
|
|
|
return -ENOENT;
|
2008-11-07 22:05:41 +00:00
|
|
|
}
|
|
|
|
|
2014-06-10 15:28:10 +00:00
|
|
|
/*
|
|
|
|
* If this crtc has a universal cursor plane, call that plane's update
|
|
|
|
* handler rather than using legacy cursor handlers.
|
|
|
|
*/
|
2014-11-11 09:12:00 +00:00
|
|
|
drm_modeset_lock_crtc(crtc, crtc->cursor);
|
2014-09-12 15:07:32 +00:00
|
|
|
if (crtc->cursor) {
|
|
|
|
ret = drm_mode_cursor_universal(crtc, req, file_priv);
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
2008-11-07 22:05:41 +00:00
|
|
|
if (req->flags & DRM_MODE_CURSOR_BO) {
|
2013-06-20 01:48:52 +00:00
|
|
|
if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) {
|
2008-11-07 22:05:41 +00:00
|
|
|
ret = -ENXIO;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
/* Turns off the cursor if handle is 0 */
|
2013-06-20 01:48:52 +00:00
|
|
|
if (crtc->funcs->cursor_set2)
|
|
|
|
ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle,
|
|
|
|
req->width, req->height, req->hot_x, req->hot_y);
|
|
|
|
else
|
|
|
|
ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
|
|
|
|
req->width, req->height);
|
2008-11-07 22:05:41 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
if (req->flags & DRM_MODE_CURSOR_MOVE) {
|
|
|
|
if (crtc->funcs->cursor_move) {
|
|
|
|
ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
|
|
|
|
} else {
|
|
|
|
ret = -EFAULT;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
out:
|
2014-07-25 16:07:40 +00:00
|
|
|
drm_modeset_unlock_crtc(crtc);
|
2012-12-02 14:24:10 +00:00
|
|
|
|
2008-11-07 22:05:41 +00:00
|
|
|
return ret;
|
2013-06-20 01:48:52 +00:00
|
|
|
|
|
|
|
}
|
2014-03-10 20:33:02 +00:00
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
* drm_mode_cursor_ioctl - set CRTC's cursor configuration
|
|
|
|
* @dev: drm device for the ioctl
|
|
|
|
* @data: data pointer for the ioctl
|
|
|
|
* @file_priv: drm file for the ioctl call
|
|
|
|
*
|
|
|
|
* Set the cursor configuration based on user request.
|
|
|
|
*
|
|
|
|
* Called by the user via ioctl.
|
|
|
|
*
|
|
|
|
* Returns:
|
2014-11-19 17:38:09 +00:00
|
|
|
* Zero on success, negative errno on failure.
|
2014-03-10 20:33:02 +00:00
|
|
|
*/
|
2013-06-20 01:48:52 +00:00
|
|
|
int drm_mode_cursor_ioctl(struct drm_device *dev,
|
2014-03-10 20:33:02 +00:00
|
|
|
void *data, struct drm_file *file_priv)
|
2013-06-20 01:48:52 +00:00
|
|
|
{
|
|
|
|
struct drm_mode_cursor *req = data;
|
|
|
|
struct drm_mode_cursor2 new_req;
|
|
|
|
|
|
|
|
memcpy(&new_req, req, sizeof(struct drm_mode_cursor));
|
|
|
|
new_req.hot_x = new_req.hot_y = 0;
|
|
|
|
|
|
|
|
return drm_mode_cursor_common(dev, &new_req, file_priv);
|
|
|
|
}
|
|
|
|
|
2014-03-10 20:33:02 +00:00
|
|
|
/**
|
|
|
|
* drm_mode_cursor2_ioctl - set CRTC's cursor configuration
|
|
|
|
* @dev: drm device for the ioctl
|
|
|
|
* @data: data pointer for the ioctl
|
|
|
|
* @file_priv: drm file for the ioctl call
|
|
|
|
*
|
|
|
|
* Set the cursor configuration based on user request. This implements the 2nd
|
|
|
|
* version of the cursor ioctl, which allows userspace to additionally specify
|
|
|
|
* the hotspot of the pointer.
|
|
|
|
*
|
|
|
|
* Called by the user via ioctl.
|
|
|
|
*
|
|
|
|
* Returns:
|
2014-11-19 17:38:09 +00:00
|
|
|
* Zero on success, negative errno on failure.
|
2014-03-10 20:33:02 +00:00
|
|
|
*/
|
2013-06-20 01:48:52 +00:00
|
|
|
int drm_mode_cursor2_ioctl(struct drm_device *dev,
|
|
|
|
void *data, struct drm_file *file_priv)
|
|
|
|
{
|
|
|
|
struct drm_mode_cursor2 *req = data;
|
2014-12-10 12:03:34 +00:00
|
|
|
|
2013-06-20 01:48:52 +00:00
|
|
|
return drm_mode_cursor_common(dev, req, file_priv);
|
2008-11-07 22:05:41 +00:00
|
|
|
}
|
|
|
|
|
2016-08-29 08:27:51 +00:00
|
|
|
int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj,
|
|
|
|
struct drm_property *property,
|
|
|
|
uint64_t value)
|
2012-02-06 09:58:17 +00:00
|
|
|
{
|
2012-05-15 21:09:05 +00:00
|
|
|
int ret = -EINVAL;
|
|
|
|
struct drm_crtc *crtc = obj_to_crtc(obj);
|
2012-02-06 09:58:17 +00:00
|
|
|
|
2012-05-15 21:09:05 +00:00
|
|
|
if (crtc->funcs->set_property)
|
|
|
|
ret = crtc->funcs->set_property(crtc, property, value);
|
|
|
|
if (!ret)
|
|
|
|
drm_object_property_set_value(obj, property, value);
|
2012-02-06 09:58:17 +00:00
|
|
|
|
2012-05-15 21:09:05 +00:00
|
|
|
return ret;
|
2012-02-06 09:58:17 +00:00
|
|
|
}
|
|
|
|
|
2014-03-10 20:33:02 +00:00
|
|
|
/**
|
2014-08-20 13:45:00 +00:00
|
|
|
* drm_mode_plane_set_obj_prop - set the value of a property
|
|
|
|
* @plane: drm plane object to set property value for
|
|
|
|
* @property: property to set
|
|
|
|
* @value: value the property should be set to
|
2014-03-10 20:33:02 +00:00
|
|
|
*
|
2014-08-20 13:45:00 +00:00
|
|
|
* This functions sets a given property on a given plane object. This function
|
|
|
|
* calls the driver's ->set_property callback and changes the software state of
|
|
|
|
* the property if the callback succeeds.
|
2014-03-10 20:33:02 +00:00
|
|
|
*
|
|
|
|
* Returns:
|
2014-08-20 13:45:00 +00:00
|
|
|
* Zero on success, error code on failure.
|
2014-03-10 20:33:02 +00:00
|
|
|
*/
|
2014-08-20 13:45:00 +00:00
|
|
|
int drm_mode_plane_set_obj_prop(struct drm_plane *plane,
|
|
|
|
struct drm_property *property,
|
|
|
|
uint64_t value)
|
2012-05-17 08:23:26 +00:00
|
|
|
{
|
2012-05-17 08:23:27 +00:00
|
|
|
int ret = -EINVAL;
|
2014-08-20 13:45:00 +00:00
|
|
|
struct drm_mode_object *obj = &plane->base;
|
2014-07-08 05:01:52 +00:00
|
|
|
|
2012-05-17 08:23:27 +00:00
|
|
|
if (plane->funcs->set_property)
|
|
|
|
ret = plane->funcs->set_property(plane, property, value);
|
|
|
|
if (!ret)
|
|
|
|
drm_object_property_set_value(obj, property, value);
|
2012-05-17 08:23:26 +00:00
|
|
|
|
2012-05-17 08:23:27 +00:00
|
|
|
return ret;
|
|
|
|
}
|
2014-08-20 13:45:00 +00:00
|
|
|
EXPORT_SYMBOL(drm_mode_plane_set_obj_prop);
|
2012-05-17 08:23:27 +00:00
|
|
|
|
2014-03-10 20:33:02 +00:00
|
|
|
/**
|
|
|
|
* drm_mode_crtc_set_gamma_size - set the gamma table size
|
|
|
|
* @crtc: CRTC to set the gamma table size for
|
|
|
|
* @gamma_size: size of the gamma table
|
|
|
|
*
|
|
|
|
* Drivers which support gamma tables should set this to the supported gamma
|
|
|
|
* table size when initializing the CRTC. Currently the drm core only supports a
|
|
|
|
* fixed gamma table size.
|
|
|
|
*
|
|
|
|
* Returns:
|
2014-11-19 17:38:09 +00:00
|
|
|
* Zero on success, negative errno on failure.
|
2014-03-10 20:33:02 +00:00
|
|
|
*/
|
2012-02-01 10:38:23 +00:00
|
|
|
int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
|
2014-03-10 20:33:02 +00:00
|
|
|
int gamma_size)
|
2008-11-07 22:05:41 +00:00
|
|
|
{
|
2016-03-30 09:51:16 +00:00
|
|
|
uint16_t *r_base, *g_base, *b_base;
|
|
|
|
int i;
|
|
|
|
|
2008-11-07 22:05:41 +00:00
|
|
|
crtc->gamma_size = gamma_size;
|
|
|
|
|
2014-12-10 12:03:35 +00:00
|
|
|
crtc->gamma_store = kcalloc(gamma_size, sizeof(uint16_t) * 3,
|
|
|
|
GFP_KERNEL);
|
2008-11-07 22:05:41 +00:00
|
|
|
if (!crtc->gamma_store) {
|
|
|
|
crtc->gamma_size = 0;
|
2012-02-01 10:38:23 +00:00
|
|
|
return -ENOMEM;
|
2008-11-07 22:05:41 +00:00
|
|
|
}
|
|
|
|
|
2016-03-30 09:51:16 +00:00
|
|
|
r_base = crtc->gamma_store;
|
|
|
|
g_base = r_base + gamma_size;
|
|
|
|
b_base = g_base + gamma_size;
|
|
|
|
for (i = 0; i < gamma_size; i++) {
|
|
|
|
r_base[i] = i << 8;
|
|
|
|
g_base[i] = i << 8;
|
|
|
|
b_base[i] = i << 8;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2012-02-01 10:38:23 +00:00
|
|
|
return 0;
|
2008-11-07 22:05:41 +00:00
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
|
|
|
|
|
2014-03-10 20:33:02 +00:00
|
|
|
/**
|
|
|
|
* drm_mode_gamma_set_ioctl - set the gamma table
|
|
|
|
* @dev: DRM device
|
|
|
|
* @data: ioctl data
|
|
|
|
* @file_priv: DRM file info
|
|
|
|
*
|
|
|
|
* Set the gamma table of a CRTC to the one passed in by the user. Userspace can
|
|
|
|
* inquire the required gamma table size through drm_mode_gamma_get_ioctl.
|
|
|
|
*
|
|
|
|
* Called by the user via ioctl.
|
|
|
|
*
|
|
|
|
* Returns:
|
2014-11-19 17:38:09 +00:00
|
|
|
* Zero on success, negative errno on failure.
|
2014-03-10 20:33:02 +00:00
|
|
|
*/
|
2008-11-07 22:05:41 +00:00
|
|
|
int drm_mode_gamma_set_ioctl(struct drm_device *dev,
|
|
|
|
void *data, struct drm_file *file_priv)
|
|
|
|
{
|
|
|
|
struct drm_mode_crtc_lut *crtc_lut = data;
|
|
|
|
struct drm_crtc *crtc;
|
|
|
|
void *r_base, *g_base, *b_base;
|
|
|
|
int size;
|
|
|
|
int ret = 0;
|
|
|
|
|
2011-02-08 03:55:21 +00:00
|
|
|
if (!drm_core_check_feature(dev, DRIVER_MODESET))
|
|
|
|
return -EINVAL;
|
|
|
|
|
2012-12-01 23:28:11 +00:00
|
|
|
drm_modeset_lock_all(dev);
|
2013-10-05 20:36:52 +00:00
|
|
|
crtc = drm_crtc_find(dev, crtc_lut->crtc_id);
|
|
|
|
if (!crtc) {
|
2013-10-17 10:35:00 +00:00
|
|
|
ret = -ENOENT;
|
2008-11-07 22:05:41 +00:00
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
2012-05-17 11:27:24 +00:00
|
|
|
if (crtc->funcs->gamma_set == NULL) {
|
|
|
|
ret = -ENOSYS;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
2008-11-07 22:05:41 +00:00
|
|
|
/* memcpy into gamma store */
|
|
|
|
if (crtc_lut->gamma_size != crtc->gamma_size) {
|
|
|
|
ret = -EINVAL;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
size = crtc_lut->gamma_size * (sizeof(uint16_t));
|
|
|
|
r_base = crtc->gamma_store;
|
|
|
|
if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
|
|
|
|
ret = -EFAULT;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
g_base = r_base + size;
|
|
|
|
if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
|
|
|
|
ret = -EFAULT;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
b_base = g_base + size;
|
|
|
|
if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
|
|
|
|
ret = -EFAULT;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
2016-06-07 10:49:30 +00:00
|
|
|
ret = crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, crtc->gamma_size);
|
2008-11-07 22:05:41 +00:00
|
|
|
|
|
|
|
out:
|
2012-12-01 23:28:11 +00:00
|
|
|
drm_modeset_unlock_all(dev);
|
2008-11-07 22:05:41 +00:00
|
|
|
return ret;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
2014-03-10 20:33:02 +00:00
|
|
|
/**
|
|
|
|
* drm_mode_gamma_get_ioctl - get the gamma table
|
|
|
|
* @dev: DRM device
|
|
|
|
* @data: ioctl data
|
|
|
|
* @file_priv: DRM file info
|
|
|
|
*
|
|
|
|
* Copy the current gamma table into the storage provided. This also provides
|
|
|
|
* the gamma table size the driver expects, which can be used to size the
|
|
|
|
* allocated storage.
|
|
|
|
*
|
|
|
|
* Called by the user via ioctl.
|
|
|
|
*
|
|
|
|
* Returns:
|
2014-11-19 17:38:09 +00:00
|
|
|
* Zero on success, negative errno on failure.
|
2014-03-10 20:33:02 +00:00
|
|
|
*/
|
2008-11-07 22:05:41 +00:00
|
|
|
int drm_mode_gamma_get_ioctl(struct drm_device *dev,
|
|
|
|
void *data, struct drm_file *file_priv)
|
|
|
|
{
|
|
|
|
struct drm_mode_crtc_lut *crtc_lut = data;
|
|
|
|
struct drm_crtc *crtc;
|
|
|
|
void *r_base, *g_base, *b_base;
|
|
|
|
int size;
|
|
|
|
int ret = 0;
|
|
|
|
|
2011-02-08 03:55:21 +00:00
|
|
|
if (!drm_core_check_feature(dev, DRIVER_MODESET))
|
|
|
|
return -EINVAL;
|
|
|
|
|
2012-12-01 23:28:11 +00:00
|
|
|
drm_modeset_lock_all(dev);
|
2013-10-05 20:36:52 +00:00
|
|
|
crtc = drm_crtc_find(dev, crtc_lut->crtc_id);
|
|
|
|
if (!crtc) {
|
2013-10-17 10:35:00 +00:00
|
|
|
ret = -ENOENT;
|
2008-11-07 22:05:41 +00:00
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* memcpy into gamma store */
|
|
|
|
if (crtc_lut->gamma_size != crtc->gamma_size) {
|
|
|
|
ret = -EINVAL;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
size = crtc_lut->gamma_size * (sizeof(uint16_t));
|
|
|
|
r_base = crtc->gamma_store;
|
|
|
|
if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
|
|
|
|
ret = -EFAULT;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
g_base = r_base + size;
|
|
|
|
if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
|
|
|
|
ret = -EFAULT;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
b_base = g_base + size;
|
|
|
|
if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
|
|
|
|
ret = -EFAULT;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
out:
|
2012-12-01 23:28:11 +00:00
|
|
|
drm_modeset_unlock_all(dev);
|
2008-11-07 22:05:41 +00:00
|
|
|
return ret;
|
|
|
|
}
|
2009-11-17 17:43:55 +00:00
|
|
|
|
2014-03-10 20:33:02 +00:00
|
|
|
/**
|
|
|
|
* drm_mode_page_flip_ioctl - schedule an asynchronous fb update
|
|
|
|
* @dev: DRM device
|
|
|
|
* @data: ioctl data
|
|
|
|
* @file_priv: DRM file info
|
|
|
|
*
|
|
|
|
* This schedules an asynchronous update on a given CRTC, called page flip.
|
|
|
|
* Optionally a drm event is generated to signal the completion of the event.
|
|
|
|
* Generic drivers cannot assume that a pageflip with changed framebuffer
|
|
|
|
* properties (including driver specific metadata like tiling layout) will work,
|
|
|
|
* but some drivers support e.g. pixel format changes through the pageflip
|
|
|
|
* ioctl.
|
|
|
|
*
|
|
|
|
* Called by the user via ioctl.
|
|
|
|
*
|
|
|
|
* Returns:
|
2014-11-19 17:38:09 +00:00
|
|
|
* Zero on success, negative errno on failure.
|
2014-03-10 20:33:02 +00:00
|
|
|
*/
|
2009-11-17 17:43:55 +00:00
|
|
|
int drm_mode_page_flip_ioctl(struct drm_device *dev,
|
|
|
|
void *data, struct drm_file *file_priv)
|
|
|
|
{
|
2016-08-08 07:23:39 +00:00
|
|
|
struct drm_mode_crtc_page_flip_target *page_flip = data;
|
2009-11-17 17:43:55 +00:00
|
|
|
struct drm_crtc *crtc;
|
2014-07-27 11:42:42 +00:00
|
|
|
struct drm_framebuffer *fb = NULL;
|
2009-11-17 17:43:55 +00:00
|
|
|
struct drm_pending_vblank_event *e = NULL;
|
2016-08-08 07:23:39 +00:00
|
|
|
u32 target_vblank = page_flip->sequence;
|
2009-11-17 17:43:55 +00:00
|
|
|
int ret = -EINVAL;
|
|
|
|
|
2016-08-08 07:23:39 +00:00
|
|
|
if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
if (page_flip->sequence != 0 && !(page_flip->flags & DRM_MODE_PAGE_FLIP_TARGET))
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
/* Only one of the DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE/RELATIVE flags
|
|
|
|
* can be specified
|
|
|
|
*/
|
|
|
|
if ((page_flip->flags & DRM_MODE_PAGE_FLIP_TARGET) == DRM_MODE_PAGE_FLIP_TARGET)
|
2009-11-17 17:43:55 +00:00
|
|
|
return -EINVAL;
|
|
|
|
|
2013-07-23 01:50:00 +00:00
|
|
|
if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip)
|
|
|
|
return -EINVAL;
|
|
|
|
|
2013-10-05 20:36:52 +00:00
|
|
|
crtc = drm_crtc_find(dev, page_flip->crtc_id);
|
|
|
|
if (!crtc)
|
2013-10-17 10:35:00 +00:00
|
|
|
return -ENOENT;
|
2009-11-17 17:43:55 +00:00
|
|
|
|
2016-08-08 07:23:03 +00:00
|
|
|
if (crtc->funcs->page_flip_target) {
|
2016-08-08 07:23:39 +00:00
|
|
|
u32 current_vblank;
|
2016-08-08 07:23:03 +00:00
|
|
|
int r;
|
|
|
|
|
|
|
|
r = drm_crtc_vblank_get(crtc);
|
|
|
|
if (r)
|
|
|
|
return r;
|
|
|
|
|
2016-08-08 07:23:39 +00:00
|
|
|
current_vblank = drm_crtc_vblank_count(crtc);
|
|
|
|
|
|
|
|
switch (page_flip->flags & DRM_MODE_PAGE_FLIP_TARGET) {
|
|
|
|
case DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE:
|
|
|
|
if ((int)(target_vblank - current_vblank) > 1) {
|
|
|
|
DRM_DEBUG("Invalid absolute flip target %u, "
|
|
|
|
"must be <= %u\n", target_vblank,
|
|
|
|
current_vblank + 1);
|
|
|
|
drm_crtc_vblank_put(crtc);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case DRM_MODE_PAGE_FLIP_TARGET_RELATIVE:
|
|
|
|
if (target_vblank != 0 && target_vblank != 1) {
|
|
|
|
DRM_DEBUG("Invalid relative flip target %u, "
|
|
|
|
"must be 0 or 1\n", target_vblank);
|
|
|
|
drm_crtc_vblank_put(crtc);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
target_vblank += current_vblank;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
target_vblank = current_vblank +
|
|
|
|
!(page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
} else if (crtc->funcs->page_flip == NULL ||
|
|
|
|
(page_flip->flags & DRM_MODE_PAGE_FLIP_TARGET)) {
|
2016-08-08 07:23:03 +00:00
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
2014-11-11 09:12:00 +00:00
|
|
|
drm_modeset_lock_crtc(crtc, crtc->primary);
|
2014-04-01 22:22:40 +00:00
|
|
|
if (crtc->primary->fb == NULL) {
|
2010-07-17 19:23:26 +00:00
|
|
|
/* The framebuffer is currently unbound, presumably
|
|
|
|
* due to a hotplug event, that userspace has not
|
|
|
|
* yet discovered.
|
|
|
|
*/
|
|
|
|
ret = -EBUSY;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
2012-12-02 20:53:40 +00:00
|
|
|
fb = drm_framebuffer_lookup(dev, page_flip->fb_id);
|
2013-10-17 10:35:01 +00:00
|
|
|
if (!fb) {
|
|
|
|
ret = -ENOENT;
|
2009-11-17 17:43:55 +00:00
|
|
|
goto out;
|
2013-10-17 10:35:01 +00:00
|
|
|
}
|
2009-11-17 17:43:55 +00:00
|
|
|
|
2015-10-15 17:40:02 +00:00
|
|
|
if (crtc->state) {
|
|
|
|
const struct drm_plane_state *state = crtc->primary->state;
|
|
|
|
|
|
|
|
ret = check_src_coords(state->src_x, state->src_y,
|
|
|
|
state->src_w, state->src_h, fb);
|
|
|
|
} else {
|
|
|
|
ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb);
|
|
|
|
}
|
2013-09-25 15:45:30 +00:00
|
|
|
if (ret)
|
2012-03-13 10:35:45 +00:00
|
|
|
goto out;
|
|
|
|
|
2014-04-01 22:22:40 +00:00
|
|
|
if (crtc->primary->fb->pixel_format != fb->pixel_format) {
|
2013-04-21 23:38:46 +00:00
|
|
|
DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n");
|
|
|
|
ret = -EINVAL;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
2009-11-17 17:43:55 +00:00
|
|
|
if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
|
2016-01-11 21:40:56 +00:00
|
|
|
e = kzalloc(sizeof *e, GFP_KERNEL);
|
|
|
|
if (!e) {
|
|
|
|
ret = -ENOMEM;
|
2009-11-17 17:43:55 +00:00
|
|
|
goto out;
|
|
|
|
}
|
2009-11-19 18:50:22 +00:00
|
|
|
e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
|
2014-12-10 12:03:40 +00:00
|
|
|
e->event.base.length = sizeof(e->event);
|
2009-11-17 17:43:55 +00:00
|
|
|
e->event.user_data = page_flip->user_data;
|
2016-01-11 21:40:56 +00:00
|
|
|
ret = drm_event_reserve_init(dev, file_priv, &e->base, &e->event.base);
|
|
|
|
if (ret) {
|
|
|
|
kfree(e);
|
|
|
|
goto out;
|
|
|
|
}
|
2009-11-17 17:43:55 +00:00
|
|
|
}
|
|
|
|
|
2014-07-27 11:42:42 +00:00
|
|
|
crtc->primary->old_fb = crtc->primary->fb;
|
2016-08-08 07:23:03 +00:00
|
|
|
if (crtc->funcs->page_flip_target)
|
|
|
|
ret = crtc->funcs->page_flip_target(crtc, fb, e,
|
|
|
|
page_flip->flags,
|
|
|
|
target_vblank);
|
|
|
|
else
|
|
|
|
ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags);
|
2009-11-17 17:43:55 +00:00
|
|
|
if (ret) {
|
2016-01-11 21:40:56 +00:00
|
|
|
if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT)
|
|
|
|
drm_event_cancel_free(dev, &e->base);
|
2012-12-11 00:07:12 +00:00
|
|
|
/* Keep the old fb, don't unref it. */
|
2014-07-27 11:42:42 +00:00
|
|
|
crtc->primary->old_fb = NULL;
|
2012-12-11 00:07:12 +00:00
|
|
|
} else {
|
2015-07-07 06:43:03 +00:00
|
|
|
crtc->primary->fb = fb;
|
2012-12-11 00:07:12 +00:00
|
|
|
/* Unref only the old framebuffer. */
|
|
|
|
fb = NULL;
|
2009-11-17 17:43:55 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
out:
|
2016-09-07 17:23:45 +00:00
|
|
|
if (ret && crtc->funcs->page_flip_target)
|
2016-08-08 07:23:03 +00:00
|
|
|
drm_crtc_vblank_put(crtc);
|
2012-12-11 00:07:12 +00:00
|
|
|
if (fb)
|
|
|
|
drm_framebuffer_unreference(fb);
|
2014-07-27 11:42:42 +00:00
|
|
|
if (crtc->primary->old_fb)
|
|
|
|
drm_framebuffer_unreference(crtc->primary->old_fb);
|
|
|
|
crtc->primary->old_fb = NULL;
|
2014-07-25 16:07:40 +00:00
|
|
|
drm_modeset_unlock_crtc(crtc);
|
drm: only grab the crtc lock for pageflips
The pagelip ioctl itself is rather simply, so the hard work for this
patch is auditing all the drivers:
- exynos: Pageflip is protect with dev->struct_mutex and ...
synchronous. But nothing fancy going on, besides a check whether the
crtc is enabled, which should probably be somewhere in the drm core
so that we have unified behaviour across all drivers.
- i915: hw-state is protected with dev->struct_mutex, the delayed
unpin work together with the other stuff the pageflip complete irq
handler needs is protected by the event_lock spinlock.
- nouveau: With the pin/unpin functions fixed, everything looks safe:
A bit of ttm wrestling and refcounting, and a few channel accesses.
The later are either already proteced sufficiently, or are now safe
with the channel locking introduced to make cursor updates safe.
- radeon: The irq_get/put functions look a bit race, since the
atomic_inc/dec isn't protect with locks. Otoh they're all per-crtc,
so we should be safe with per-crtc locking from the drm core. Then
there's tons of per-crtc register access, which could potentially go
through the indirect reg acces. But that's fixed to make cursor
updates concurrent. Bookeeping for the drm even is also protected
with the even_lock, which also protects against the pageflip irq
handler since radeon hw seems to have no way to queue these up
asynchronously. Otherwise just a bit of ttm-based buffer handling
and fencing, which is now safe with the previous patch to hold
bdev->fence_lock while grabbing the ttm fence.
- shmob: Only one crtc. That's an easy one ...
- vmwgfx: As usual a bit special with tons different things:
- Flippable check using is_implicit and num_implicit. Changes to
those seem to be nicely covered with the global modeset lock, so
we should be fine.
- Some dirty cliprect handling stuff, or at least that is my guess.
Looks like it's fine since either it's per-crtc, invariant or
(like the execbuf stuff launched) protected otherwise.
- Adding the actual flip to the fence_event list. On a quick look
this seems to have solid locking in place, too.
... but generally this is all way over my head.
- imx: Impressive display of races between the page_flip
implementation and the irq handler. Also, ipu_drm_set_base which
gets eventually called from the irq handler to update the display
base isn't really protected against concurrent set_config calls from
process context. In any case, going for per-crtc locking won't make
this worse, so nothing to do.
- omap: The new async callback code merged into 3.8 seems to have
solid locking in place, and there doesn't seem to be any shared
state at risk. Especially since the callbacks still use
modeset_lock_all and are so not converted.
v2: Update omapdrm analysis to 3.8 code per the discussion with Rob
Clark.
Reviewed-by: Rob Clark <rob@ti.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-12-11 15:59:31 +00:00
|
|
|
|
2009-11-17 17:43:55 +00:00
|
|
|
return ret;
|
|
|
|
}
|
2011-01-24 15:11:08 +00:00
|
|
|
|
2014-03-10 20:33:02 +00:00
|
|
|
/**
|
|
|
|
* drm_mode_config_reset - call ->reset callbacks
|
|
|
|
* @dev: drm device
|
|
|
|
*
|
|
|
|
* This functions calls all the crtc's, encoder's and connector's ->reset
|
|
|
|
* callback. Drivers can use this in e.g. their driver load or resume code to
|
|
|
|
* reset hardware and software state.
|
|
|
|
*/
|
2011-01-24 15:11:08 +00:00
|
|
|
void drm_mode_config_reset(struct drm_device *dev)
|
|
|
|
{
|
|
|
|
struct drm_crtc *crtc;
|
2014-07-29 13:32:37 +00:00
|
|
|
struct drm_plane *plane;
|
2011-01-24 15:11:08 +00:00
|
|
|
struct drm_encoder *encoder;
|
|
|
|
struct drm_connector *connector;
|
|
|
|
|
2015-07-09 21:44:35 +00:00
|
|
|
drm_for_each_plane(plane, dev)
|
2014-07-29 13:32:37 +00:00
|
|
|
if (plane->funcs->reset)
|
|
|
|
plane->funcs->reset(plane);
|
|
|
|
|
2015-07-09 21:44:35 +00:00
|
|
|
drm_for_each_crtc(crtc, dev)
|
2011-01-24 15:11:08 +00:00
|
|
|
if (crtc->funcs->reset)
|
|
|
|
crtc->funcs->reset(crtc);
|
|
|
|
|
2015-07-09 21:44:35 +00:00
|
|
|
drm_for_each_encoder(encoder, dev)
|
2011-01-24 15:11:08 +00:00
|
|
|
if (encoder->funcs->reset)
|
|
|
|
encoder->funcs->reset(encoder);
|
|
|
|
|
2015-07-29 06:32:43 +00:00
|
|
|
mutex_lock(&dev->mode_config.mutex);
|
2015-08-17 04:13:53 +00:00
|
|
|
drm_for_each_connector(connector, dev)
|
2011-01-24 15:11:08 +00:00
|
|
|
if (connector->funcs->reset)
|
|
|
|
connector->funcs->reset(connector);
|
2015-07-29 06:32:43 +00:00
|
|
|
mutex_unlock(&dev->mode_config.mutex);
|
2011-01-24 15:11:08 +00:00
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(drm_mode_config_reset);
|
2011-02-07 02:16:14 +00:00
|
|
|
|
2014-03-10 20:33:02 +00:00
|
|
|
/**
|
|
|
|
* drm_mode_create_dumb_ioctl - create a dumb backing storage buffer
|
|
|
|
* @dev: DRM device
|
|
|
|
* @data: ioctl data
|
|
|
|
* @file_priv: DRM file info
|
|
|
|
*
|
|
|
|
* This creates a new dumb buffer in the driver's backing storage manager (GEM,
|
|
|
|
* TTM or something else entirely) and returns the resulting buffer handle. This
|
|
|
|
* handle can then be wrapped up into a framebuffer modeset object.
|
|
|
|
*
|
|
|
|
* Note that userspace is not allowed to use such objects for render
|
|
|
|
* acceleration - drivers must create their own private ioctls for such a use
|
|
|
|
* case.
|
|
|
|
*
|
|
|
|
* Called by the user via ioctl.
|
|
|
|
*
|
|
|
|
* Returns:
|
2014-11-19 17:38:09 +00:00
|
|
|
* Zero on success, negative errno on failure.
|
2014-03-10 20:33:02 +00:00
|
|
|
*/
|
2011-02-07 02:16:14 +00:00
|
|
|
int drm_mode_create_dumb_ioctl(struct drm_device *dev,
|
|
|
|
void *data, struct drm_file *file_priv)
|
|
|
|
{
|
|
|
|
struct drm_mode_create_dumb *args = data;
|
2014-01-20 19:09:55 +00:00
|
|
|
u32 cpp, stride, size;
|
2011-02-07 02:16:14 +00:00
|
|
|
|
|
|
|
if (!dev->driver->dumb_create)
|
|
|
|
return -ENOSYS;
|
2014-01-20 19:09:55 +00:00
|
|
|
if (!args->width || !args->height || !args->bpp)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
/* overflow checks for 32bit size calculations */
|
2014-08-24 17:23:26 +00:00
|
|
|
/* NOTE: DIV_ROUND_UP() can overflow */
|
2014-01-20 19:09:55 +00:00
|
|
|
cpp = DIV_ROUND_UP(args->bpp, 8);
|
2014-08-24 17:23:26 +00:00
|
|
|
if (!cpp || cpp > 0xffffffffU / args->width)
|
2014-01-20 19:09:55 +00:00
|
|
|
return -EINVAL;
|
|
|
|
stride = cpp * args->width;
|
|
|
|
if (args->height > 0xffffffffU / stride)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
/* test for wrap-around */
|
|
|
|
size = args->height * stride;
|
|
|
|
if (PAGE_ALIGN(size) == 0)
|
|
|
|
return -EINVAL;
|
|
|
|
|
2014-11-03 10:14:14 +00:00
|
|
|
/*
|
|
|
|
* handle, pitch and size are output parameters. Zero them out to
|
|
|
|
* prevent drivers from accidentally using uninitialized data. Since
|
|
|
|
* not all existing userspace is clearing these fields properly we
|
|
|
|
* cannot reject IOCTL with garbage in them.
|
|
|
|
*/
|
|
|
|
args->handle = 0;
|
|
|
|
args->pitch = 0;
|
|
|
|
args->size = 0;
|
|
|
|
|
2011-02-07 02:16:14 +00:00
|
|
|
return dev->driver->dumb_create(file_priv, dev, args);
|
|
|
|
}
|
|
|
|
|
2014-03-10 20:33:02 +00:00
|
|
|
/**
|
|
|
|
* drm_mode_mmap_dumb_ioctl - create an mmap offset for a dumb backing storage buffer
|
|
|
|
* @dev: DRM device
|
|
|
|
* @data: ioctl data
|
|
|
|
* @file_priv: DRM file info
|
|
|
|
*
|
|
|
|
* Allocate an offset in the drm device node's address space to be able to
|
|
|
|
* memory map a dumb buffer.
|
|
|
|
*
|
|
|
|
* Called by the user via ioctl.
|
|
|
|
*
|
|
|
|
* Returns:
|
2014-11-19 17:38:09 +00:00
|
|
|
* Zero on success, negative errno on failure.
|
2014-03-10 20:33:02 +00:00
|
|
|
*/
|
2011-02-07 02:16:14 +00:00
|
|
|
int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
|
|
|
|
void *data, struct drm_file *file_priv)
|
|
|
|
{
|
|
|
|
struct drm_mode_map_dumb *args = data;
|
|
|
|
|
|
|
|
/* call driver ioctl to get mmap offset */
|
|
|
|
if (!dev->driver->dumb_map_offset)
|
|
|
|
return -ENOSYS;
|
|
|
|
|
|
|
|
return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset);
|
|
|
|
}
|
|
|
|
|
2014-03-10 20:33:02 +00:00
|
|
|
/**
|
|
|
|
* drm_mode_destroy_dumb_ioctl - destroy a dumb backing strage buffer
|
|
|
|
* @dev: DRM device
|
|
|
|
* @data: ioctl data
|
|
|
|
* @file_priv: DRM file info
|
|
|
|
*
|
|
|
|
* This destroys the userspace handle for the given dumb backing storage buffer.
|
|
|
|
* Since buffer objects must be reference counted in the kernel a buffer object
|
|
|
|
* won't be immediately freed if a framebuffer modeset object still uses it.
|
|
|
|
*
|
|
|
|
* Called by the user via ioctl.
|
|
|
|
*
|
|
|
|
* Returns:
|
2014-11-19 17:38:09 +00:00
|
|
|
* Zero on success, negative errno on failure.
|
2014-03-10 20:33:02 +00:00
|
|
|
*/
|
2011-02-07 02:16:14 +00:00
|
|
|
int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
|
|
|
|
void *data, struct drm_file *file_priv)
|
|
|
|
{
|
|
|
|
struct drm_mode_destroy_dumb *args = data;
|
|
|
|
|
|
|
|
if (!dev->driver->dumb_destroy)
|
|
|
|
return -ENOSYS;
|
|
|
|
|
|
|
|
return dev->driver->dumb_destroy(file_priv, dev, args->handle);
|
|
|
|
}
|
2011-11-29 20:02:54 +00:00
|
|
|
|
2014-07-08 05:01:56 +00:00
|
|
|
/**
|
|
|
|
* drm_rotation_simplify() - Try to simplify the rotation
|
|
|
|
* @rotation: Rotation to be simplified
|
|
|
|
* @supported_rotations: Supported rotations
|
|
|
|
*
|
|
|
|
* Attempt to simplify the rotation to a form that is supported.
|
|
|
|
* Eg. if the hardware supports everything except DRM_REFLECT_X
|
|
|
|
* one could call this function like this:
|
|
|
|
*
|
2016-07-29 05:50:05 +00:00
|
|
|
* drm_rotation_simplify(rotation, DRM_ROTATE_0 |
|
|
|
|
* DRM_ROTATE_90 | DRM_ROTATE_180 |
|
|
|
|
* DRM_ROTATE_270 | DRM_REFLECT_Y);
|
2014-07-08 05:01:56 +00:00
|
|
|
*
|
|
|
|
* to eliminate the DRM_ROTATE_X flag. Depending on what kind of
|
|
|
|
* transforms the hardware supports, this function may not
|
|
|
|
* be able to produce a supported transform, so the caller should
|
|
|
|
* check the result afterwards.
|
|
|
|
*/
|
|
|
|
unsigned int drm_rotation_simplify(unsigned int rotation,
|
|
|
|
unsigned int supported_rotations)
|
|
|
|
{
|
|
|
|
if (rotation & ~supported_rotations) {
|
2016-07-29 05:50:05 +00:00
|
|
|
rotation ^= DRM_REFLECT_X | DRM_REFLECT_Y;
|
2015-10-01 07:00:58 +00:00
|
|
|
rotation = (rotation & DRM_REFLECT_MASK) |
|
|
|
|
BIT((ffs(rotation & DRM_ROTATE_MASK) + 1) % 4);
|
2014-07-08 05:01:56 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
return rotation;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(drm_rotation_simplify);
|
|
|
|
|
2013-04-15 13:37:16 +00:00
|
|
|
/**
|
|
|
|
* drm_mode_config_init - initialize DRM mode_configuration structure
|
|
|
|
* @dev: DRM device
|
|
|
|
*
|
|
|
|
* Initialize @dev's mode_config structure, used for tracking the graphics
|
|
|
|
* configuration of @dev.
|
|
|
|
*
|
|
|
|
* Since this initializes the modeset locks, no locking is possible. Which is no
|
|
|
|
* problem, since this should happen single threaded at init time. It is the
|
|
|
|
* driver's problem to ensure this guarantee.
|
|
|
|
*
|
|
|
|
*/
|
|
|
|
void drm_mode_config_init(struct drm_device *dev)
|
|
|
|
{
|
|
|
|
mutex_init(&dev->mode_config.mutex);
|
2013-11-19 17:10:12 +00:00
|
|
|
drm_modeset_lock_init(&dev->mode_config.connection_mutex);
|
2013-04-15 13:37:16 +00:00
|
|
|
mutex_init(&dev->mode_config.idr_mutex);
|
|
|
|
mutex_init(&dev->mode_config.fb_lock);
|
2015-04-20 18:22:54 +00:00
|
|
|
mutex_init(&dev->mode_config.blob_lock);
|
2013-04-15 13:37:16 +00:00
|
|
|
INIT_LIST_HEAD(&dev->mode_config.fb_list);
|
|
|
|
INIT_LIST_HEAD(&dev->mode_config.crtc_list);
|
|
|
|
INIT_LIST_HEAD(&dev->mode_config.connector_list);
|
|
|
|
INIT_LIST_HEAD(&dev->mode_config.encoder_list);
|
|
|
|
INIT_LIST_HEAD(&dev->mode_config.property_list);
|
|
|
|
INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
|
|
|
|
INIT_LIST_HEAD(&dev->mode_config.plane_list);
|
|
|
|
idr_init(&dev->mode_config.crtc_idr);
|
2014-10-20 06:17:17 +00:00
|
|
|
idr_init(&dev->mode_config.tile_idr);
|
2016-02-17 07:32:05 +00:00
|
|
|
ida_init(&dev->mode_config.connector_ida);
|
2013-04-15 13:37:16 +00:00
|
|
|
|
|
|
|
drm_modeset_lock_all(dev);
|
2014-12-18 21:01:53 +00:00
|
|
|
drm_mode_create_standard_properties(dev);
|
2013-04-15 13:37:16 +00:00
|
|
|
drm_modeset_unlock_all(dev);
|
|
|
|
|
|
|
|
/* Just to be sure */
|
|
|
|
dev->mode_config.num_fb = 0;
|
|
|
|
dev->mode_config.num_connector = 0;
|
|
|
|
dev->mode_config.num_crtc = 0;
|
|
|
|
dev->mode_config.num_encoder = 0;
|
2014-04-01 22:22:30 +00:00
|
|
|
dev->mode_config.num_overlay_plane = 0;
|
|
|
|
dev->mode_config.num_total_plane = 0;
|
2013-04-15 13:37:16 +00:00
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(drm_mode_config_init);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* drm_mode_config_cleanup - free up DRM mode_config info
|
|
|
|
* @dev: DRM device
|
|
|
|
*
|
|
|
|
* Free up all the connectors and CRTCs associated with this DRM device, then
|
|
|
|
* free up the framebuffers and associated buffer objects.
|
|
|
|
*
|
|
|
|
* Note that since this /should/ happen single-threaded at driver/device
|
|
|
|
* teardown time, no locking is required. It's the driver's job to ensure that
|
|
|
|
* this guarantee actually holds true.
|
|
|
|
*
|
|
|
|
* FIXME: cleanup any dangling user buffer objects too
|
|
|
|
*/
|
|
|
|
void drm_mode_config_cleanup(struct drm_device *dev)
|
|
|
|
{
|
|
|
|
struct drm_connector *connector, *ot;
|
|
|
|
struct drm_crtc *crtc, *ct;
|
|
|
|
struct drm_encoder *encoder, *enct;
|
|
|
|
struct drm_framebuffer *fb, *fbt;
|
|
|
|
struct drm_property *property, *pt;
|
|
|
|
struct drm_property_blob *blob, *bt;
|
|
|
|
struct drm_plane *plane, *plt;
|
|
|
|
|
|
|
|
list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
|
|
|
|
head) {
|
|
|
|
encoder->funcs->destroy(encoder);
|
|
|
|
}
|
|
|
|
|
|
|
|
list_for_each_entry_safe(connector, ot,
|
|
|
|
&dev->mode_config.connector_list, head) {
|
|
|
|
connector->funcs->destroy(connector);
|
|
|
|
}
|
|
|
|
|
|
|
|
list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
|
|
|
|
head) {
|
|
|
|
drm_property_destroy(dev, property);
|
|
|
|
}
|
|
|
|
|
2016-03-22 14:42:14 +00:00
|
|
|
list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list,
|
|
|
|
head) {
|
|
|
|
plane->funcs->destroy(plane);
|
|
|
|
}
|
|
|
|
|
|
|
|
list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
|
|
|
|
crtc->funcs->destroy(crtc);
|
|
|
|
}
|
|
|
|
|
2013-04-15 13:37:16 +00:00
|
|
|
list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list,
|
2015-05-22 12:34:51 +00:00
|
|
|
head_global) {
|
2015-04-20 18:22:55 +00:00
|
|
|
drm_property_unreference_blob(blob);
|
2013-04-15 13:37:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Single-threaded teardown context, so it's not required to grab the
|
|
|
|
* fb_lock to protect against concurrent fb_list access. Contrary, it
|
|
|
|
* would actually deadlock with the drm_framebuffer_cleanup function.
|
|
|
|
*
|
|
|
|
* Also, if there are any framebuffers left, that's a driver leak now,
|
|
|
|
* so politely WARN about this.
|
|
|
|
*/
|
|
|
|
WARN_ON(!list_empty(&dev->mode_config.fb_list));
|
|
|
|
list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
|
2016-04-15 05:10:36 +00:00
|
|
|
drm_framebuffer_free(&fb->base.refcount);
|
2013-04-15 13:37:16 +00:00
|
|
|
}
|
|
|
|
|
2016-02-17 07:32:05 +00:00
|
|
|
ida_destroy(&dev->mode_config.connector_ida);
|
2014-10-20 06:17:17 +00:00
|
|
|
idr_destroy(&dev->mode_config.tile_idr);
|
2013-04-15 13:37:16 +00:00
|
|
|
idr_destroy(&dev->mode_config.crtc_idr);
|
2013-11-19 17:10:12 +00:00
|
|
|
drm_modeset_lock_fini(&dev->mode_config.connection_mutex);
|
2013-04-15 13:37:16 +00:00
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(drm_mode_config_cleanup);
|
2014-07-08 05:01:53 +00:00
|
|
|
|
|
|
|
struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev,
|
|
|
|
unsigned int supported_rotations)
|
|
|
|
{
|
|
|
|
static const struct drm_prop_enum_list props[] = {
|
2016-07-29 05:50:05 +00:00
|
|
|
{ __builtin_ffs(DRM_ROTATE_0) - 1, "rotate-0" },
|
|
|
|
{ __builtin_ffs(DRM_ROTATE_90) - 1, "rotate-90" },
|
|
|
|
{ __builtin_ffs(DRM_ROTATE_180) - 1, "rotate-180" },
|
|
|
|
{ __builtin_ffs(DRM_ROTATE_270) - 1, "rotate-270" },
|
|
|
|
{ __builtin_ffs(DRM_REFLECT_X) - 1, "reflect-x" },
|
|
|
|
{ __builtin_ffs(DRM_REFLECT_Y) - 1, "reflect-y" },
|
2014-07-08 05:01:53 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
return drm_property_create_bitmask(dev, 0, "rotation",
|
|
|
|
props, ARRAY_SIZE(props),
|
|
|
|
supported_rotations);
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(drm_mode_create_rotation_property);
|
2014-10-20 06:17:17 +00:00
|
|
|
|
|
|
|
/**
|
|
|
|
* DOC: Tile group
|
|
|
|
*
|
|
|
|
* Tile groups are used to represent tiled monitors with a unique
|
|
|
|
* integer identifier. Tiled monitors using DisplayID v1.3 have
|
|
|
|
* a unique 8-byte handle, we store this in a tile group, so we
|
|
|
|
* have a common identifier for all tiles in a monitor group.
|
|
|
|
*/
|
|
|
|
static void drm_tile_group_free(struct kref *kref)
|
|
|
|
{
|
|
|
|
struct drm_tile_group *tg = container_of(kref, struct drm_tile_group, refcount);
|
|
|
|
struct drm_device *dev = tg->dev;
|
|
|
|
mutex_lock(&dev->mode_config.idr_mutex);
|
|
|
|
idr_remove(&dev->mode_config.tile_idr, tg->id);
|
|
|
|
mutex_unlock(&dev->mode_config.idr_mutex);
|
|
|
|
kfree(tg);
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* drm_mode_put_tile_group - drop a reference to a tile group.
|
|
|
|
* @dev: DRM device
|
|
|
|
* @tg: tile group to drop reference to.
|
|
|
|
*
|
|
|
|
* drop reference to tile group and free if 0.
|
|
|
|
*/
|
|
|
|
void drm_mode_put_tile_group(struct drm_device *dev,
|
|
|
|
struct drm_tile_group *tg)
|
|
|
|
{
|
|
|
|
kref_put(&tg->refcount, drm_tile_group_free);
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* drm_mode_get_tile_group - get a reference to an existing tile group
|
|
|
|
* @dev: DRM device
|
|
|
|
* @topology: 8-bytes unique per monitor.
|
|
|
|
*
|
|
|
|
* Use the unique bytes to get a reference to an existing tile group.
|
|
|
|
*
|
|
|
|
* RETURNS:
|
|
|
|
* tile group or NULL if not found.
|
|
|
|
*/
|
|
|
|
struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev,
|
|
|
|
char topology[8])
|
|
|
|
{
|
|
|
|
struct drm_tile_group *tg;
|
|
|
|
int id;
|
|
|
|
mutex_lock(&dev->mode_config.idr_mutex);
|
|
|
|
idr_for_each_entry(&dev->mode_config.tile_idr, tg, id) {
|
|
|
|
if (!memcmp(tg->group_data, topology, 8)) {
|
|
|
|
if (!kref_get_unless_zero(&tg->refcount))
|
|
|
|
tg = NULL;
|
|
|
|
mutex_unlock(&dev->mode_config.idr_mutex);
|
|
|
|
return tg;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
mutex_unlock(&dev->mode_config.idr_mutex);
|
|
|
|
return NULL;
|
|
|
|
}
|
2015-03-27 17:01:52 +00:00
|
|
|
EXPORT_SYMBOL(drm_mode_get_tile_group);
|
2014-10-20 06:17:17 +00:00
|
|
|
|
|
|
|
/**
|
|
|
|
* drm_mode_create_tile_group - create a tile group from a displayid description
|
|
|
|
* @dev: DRM device
|
|
|
|
* @topology: 8-bytes unique per monitor.
|
|
|
|
*
|
|
|
|
* Create a tile group for the unique monitor, and get a unique
|
|
|
|
* identifier for the tile group.
|
|
|
|
*
|
|
|
|
* RETURNS:
|
|
|
|
* new tile group or error.
|
|
|
|
*/
|
|
|
|
struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev,
|
|
|
|
char topology[8])
|
|
|
|
{
|
|
|
|
struct drm_tile_group *tg;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
tg = kzalloc(sizeof(*tg), GFP_KERNEL);
|
|
|
|
if (!tg)
|
|
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
|
|
|
|
kref_init(&tg->refcount);
|
|
|
|
memcpy(tg->group_data, topology, 8);
|
|
|
|
tg->dev = dev;
|
|
|
|
|
|
|
|
mutex_lock(&dev->mode_config.idr_mutex);
|
|
|
|
ret = idr_alloc(&dev->mode_config.tile_idr, tg, 1, 0, GFP_KERNEL);
|
|
|
|
if (ret >= 0) {
|
|
|
|
tg->id = ret;
|
|
|
|
} else {
|
|
|
|
kfree(tg);
|
|
|
|
tg = ERR_PTR(ret);
|
|
|
|
}
|
|
|
|
|
|
|
|
mutex_unlock(&dev->mode_config.idr_mutex);
|
|
|
|
return tg;
|
|
|
|
}
|
2015-03-27 17:01:52 +00:00
|
|
|
EXPORT_SYMBOL(drm_mode_create_tile_group);
|
2016-06-07 12:09:14 +00:00
|
|
|
|
|
|
|
/**
|
|
|
|
* drm_crtc_enable_color_mgmt - enable color management properties
|
|
|
|
* @crtc: DRM CRTC
|
|
|
|
* @degamma_lut_size: the size of the degamma lut (before CSC)
|
|
|
|
* @has_ctm: whether to attach ctm_property for CSC matrix
|
|
|
|
* @gamma_lut_size: the size of the gamma lut (after CSC)
|
|
|
|
*
|
|
|
|
* This function lets the driver enable the color correction
|
|
|
|
* properties on a CRTC. This includes 3 degamma, csc and gamma
|
|
|
|
* properties that userspace can set and 2 size properties to inform
|
|
|
|
* the userspace of the lut sizes. Each of the properties are
|
|
|
|
* optional. The gamma and degamma properties are only attached if
|
|
|
|
* their size is not 0 and ctm_property is only attached if has_ctm is
|
|
|
|
* true.
|
|
|
|
*/
|
|
|
|
void drm_crtc_enable_color_mgmt(struct drm_crtc *crtc,
|
|
|
|
uint degamma_lut_size,
|
|
|
|
bool has_ctm,
|
|
|
|
uint gamma_lut_size)
|
|
|
|
{
|
|
|
|
struct drm_device *dev = crtc->dev;
|
|
|
|
struct drm_mode_config *config = &dev->mode_config;
|
|
|
|
|
|
|
|
if (degamma_lut_size) {
|
|
|
|
drm_object_attach_property(&crtc->base,
|
|
|
|
config->degamma_lut_property, 0);
|
|
|
|
drm_object_attach_property(&crtc->base,
|
|
|
|
config->degamma_lut_size_property,
|
|
|
|
degamma_lut_size);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (has_ctm)
|
|
|
|
drm_object_attach_property(&crtc->base,
|
|
|
|
config->ctm_property, 0);
|
|
|
|
|
|
|
|
if (gamma_lut_size) {
|
|
|
|
drm_object_attach_property(&crtc->base,
|
|
|
|
config->gamma_lut_property, 0);
|
|
|
|
drm_object_attach_property(&crtc->base,
|
|
|
|
config->gamma_lut_size_property,
|
|
|
|
gamma_lut_size);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(drm_crtc_enable_color_mgmt);
|