Dave Airlie [Thu, 25 Aug 2016 02:35:35 +0000 (12:35 +1000)]
Merge branch 'for-next' of git://people.freedesktop.org/~seanpaul/dogwood into drm-next
This pull request contains the following rockchip drm changes:
- Introduce support for rk3399 vop/crtc
- Add PSR framework to the rockchip driver
- Implement PSR in the rockchip analogix edp driver
- Fix panel on/off in analogix to avoid damaging panels
- Some miscellaneous fixes to clean up logs and code readability
* 'for-next' of git://people.freedesktop.org/~seanpaul/dogwood:
drm/rockchip: analogix_dp: drop unnecessary probe deferral "error" print
drm/rockchip: Enable vblank without event
drm/rockchip: Improve analogix-dp psr handling
drm/rockchip: A couple small fixes to psr
drm/rockchip: Use a spinlock to protect psr state
drm/rockchip: Don't use a delayed worker for psr state changes
drm/rockchip: Convert psr_list_mutex to spinlock and use it
drm/rockchip: analogix_dp: implement PSR function
drm/bridge: analogix_dp: add the PSR function support
drm/rockchip: add an common abstracted PSR driver
drm/rockchip: vop: export line flag function
drm/bridge: analogix_dp: Ensure the panel is properly prepared/unprepared
dt-bindings: add compatible strings for big/little rockchip vops
dt-bindings: sort Rockchip vop compatible by chip's number
drm/rockchip: vop: add rk3399 vop support
drm/rockchip: vop: introduce VOP_REG_MASK
drm/rockchip: sort registers define by chip's number
Daniel Vetter [Tue, 23 Aug 2016 12:54:48 +0000 (14:54 +0200)]
drm/doc: Document uapi requirements in DRM
Everyone knows them, except all the new folks joining from the ARM
side haven't lived through all the pain of the past years and are
entirely surprised when I raise this. Definitely time to document
this.
Last time this was a big discussion was about 6 years ago, when qcom
tried to land a kernel driver without userspace. Dave Airlie made the
rules really clear:
http://airlied.livejournal.com/73115.html
This write-up here is essentially what I've put into a presentation a
while ago, which was also reviewed by Dave:
http://blog.ffwll.ch/2015/05/gfx-kernel-upstreaming-requirements.html
v2: Fix typos Eric&Rob spotted.
v3: Nitpick from Jani.
Cc: Dave Airlie <airlied@gmail.com>
Cc: Oded Gabbay <oded.gabbay@gmail.com>
Cc: Russell King <rmk+kernel@armlinux.org.uk>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Eric Anholt <eric@anholt.net>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Cc: Sinclair Yeh <syeh@vmware.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Cc: Mark Yao <mark.yao@rock-chips.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Rob Clark <robdclark@gmail.com>
Cc: CK Hu <ck.hu@mediatek.com>
Cc: Xinliang Liu <z.liuxinliang@hisilicon.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Inki Dae <inki.dae@samsung.com>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Brian Starkey <brian.starkey@arm.com>
Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Alexey Brodkin <abrodkin@synopsys.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Tue, 23 Aug 2016 21:11:48 +0000 (07:11 +1000)]
Merge tag 'topic/drm-misc-2016-08-23' of git://anongit.freedesktop.org/drm-intel into drm-next
A few bigger things:
- start of splitting drm_crtc.c into more manageable and better documneted
chunks
- DRM_DEV_* logging (Sean)
* tag 'topic/drm-misc-2016-08-23' of git://anongit.freedesktop.org/drm-intel: (46 commits)
drm/fb-helper: Make docs for fb_set_suspend wrappers consistent
drm/rockchip: Delete unnecessary assignment for the field "owner"
drm/bridge: dw-hdmi: Delete unnecessary assignment for the field "owner"
drm/rockchip: Don't continue trying to enable crtc on failure
drm/fb-helper: Add drm_fb_helper_set_suspend_unlocked()
drm/fb-helper: Fix the dummy remove_conflicting_framebuffers
drm/udl: Ensure channel is selected before using the device.
drm: Avoid calling dev_printk(.dev = NULL)
drm: avoid exposing kernel stack in compat_drm_getstats
reservation: fix small comment typo
drm: Don't implement empty prepare_fb()/cleanup_fb()
virtio-gpu: Use memdup_user() rather than duplicating its implementation
GPU-DRM-Savage: Use memdup_user() rather than duplicating
drm: Allow drivers to modify plane_state in prepare_fb/cleanup_fb
drm/rockchip: Use DRM_DEV_ERROR in vop
drm: Introduce DRM_DEV_* log messages
drm/edid: CEA mode 64 1080p100 vsync pulse width incorrect
Revert "drm/hisilicon: Don't set drm_device->platformdev"
dma-buf: fix kernel-doc warning and typos
drm: Fix kerneldoc in drm_plane_helper.c
...
Daniel Vetter [Tue, 23 Aug 2016 15:27:27 +0000 (17:27 +0200)]
drm/fb-helper: Make docs for fb_set_suspend wrappers consistent
I figured I might as well go ocd and make them booleans and rename the
locked version too.
v2: Review from Noralf.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Cc: Noralf Trønnes <noralf@tronnes.org>
Fixes: cfe63423d9be ("drm/fb-helper: Add drm_fb_helper_set_suspend_unlocked()")
Acked-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20160823152727.31788-1-daniel.vetter@ffwll.ch
Brian Norris [Wed, 17 Aug 2016 21:10:09 +0000 (14:10 -0700)]
drm/rockchip: analogix_dp: drop unnecessary probe deferral "error" print
This driver is the only user of of_drm_find_panel() which prints an
error before doing probe deferral, yielding messages like this on boot,
before eventually succeeding:
[ 2.234271] [drm:rockchip_dp_probe] *ERROR* failed to find panel
...
[ 4.797539] [drm:rockchip_dp_probe] *ERROR* failed to find panel
...
Let's just drop the message.
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Sean Paul [Wed, 10 Aug 2016 20:24:39 +0000 (16:24 -0400)]
drm/rockchip: Enable vblank without event
vblank should be enabled regardless of whether an event
is expected back. This is especially important for a cursor
plane.
Reviewed-by: Yakir Yang <ykk@rock-chips.com>
Tested-by: Yakir Yang <ykk@rock-chip.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Sean Paul [Wed, 17 Aug 2016 00:12:45 +0000 (17:12 -0700)]
drm/rockchip: Improve analogix-dp psr handling
Remove the delayed worker, opting instead for the non-delayed
variety. Also introduce a lock to ensure we don't have races
with the worker and psr_state. Finally, cancel and wait for
the worker to finish when disabling the bridge.
Reviewed-by: Yakir Yang <ykk@rock-chips.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Sean Paul [Wed, 17 Aug 2016 00:47:17 +0000 (17:47 -0700)]
drm/rockchip: A couple small fixes to psr
A few things that need tidying up, no functional changes.
Reviewed-by: Yakir Yang <ykk@rock-chips.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Sean Paul [Tue, 16 Aug 2016 23:28:31 +0000 (16:28 -0700)]
drm/rockchip: Use a spinlock to protect psr state
The handling of psr state is racey, shore that up with
a per-psr driver lock.
Reviewed-by: Yakir Yang <ykk@rock-chips.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Sean Paul [Tue, 16 Aug 2016 22:58:29 +0000 (15:58 -0700)]
drm/rockchip: Don't use a delayed worker for psr state changes
The delayed worker isn't needed and is racey. Remove it and do
the state change in line.
Reviewed-by: Yakir Yang <ykk@rock-chips.com>
Tested-by: Yakir Yang <ykk@rock-chips.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Sean Paul [Tue, 16 Aug 2016 23:11:28 +0000 (16:11 -0700)]
drm/rockchip: Convert psr_list_mutex to spinlock and use it
This patch converts the psr_list_mutex to a spinlock and locks
all access to psr_list to avoid races (however unlikely they
were).
Reviewed-by: Yakir Yang <ykk@rock-chips.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Yakir Yang [Sun, 24 Jul 2016 06:57:52 +0000 (14:57 +0800)]
drm/rockchip: analogix_dp: implement PSR function
Alway enable the PSR function for Rockchip analogix_dp driver. If panel
don't support PSR, then the core analogix_dp would ignore this setting.
Signed-off-by: Yakir Yang <ykk@rock-chips.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Yakir Yang [Sun, 24 Jul 2016 06:57:48 +0000 (14:57 +0800)]
drm/bridge: analogix_dp: add the PSR function support
The full name of PSR is Panel Self Refresh, panel device could refresh
itself with the hardware framebuffer in panel, this would make lots of
sense to save the power consumption.
This patch have exported two symbols for platform driver to implement
the PSR function in hardware side:
- analogix_dp_active_psr()
- analogix_dp_inactive_psr()
Reviewed-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Yakir Yang <ykk@rock-chips.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Yakir Yang [Sun, 24 Jul 2016 06:57:44 +0000 (14:57 +0800)]
drm/rockchip: add an common abstracted PSR driver
The PSR driver have exported four symbols for specific device driver, and
it's safe to call them in interrupt context:
- rockchip_drm_psr_register()
- rockchip_drm_psr_unregister()
- rockchip_drm_psr_enable()
- rockchip_drm_psr_disable()
- rockchip_drm_psr_flush()
Encoder driver should call the register/unregister interfaces to hook
itself into common PSR driver, encoder have implement the 'psr_set'
callback which use the set PSR state in hardware side.
Crtc driver would call the enable/disable interfaces when vblank is
enable/disable, after that the common PSR driver would call the encoder
registered callback to set the PSR state.
Fb driver would call the flush interface in 'fb->dirty' callback, this
helper function would force all PSR enabled encoders to exit from PSR
for 3 seconds.
Signed-off-by: Yakir Yang <ykk@rock-chips.com>
[seanpaul removed leftover psr_enabled/psr_work kruft from drm_vop.c]
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Yakir Yang [Sun, 24 Jul 2016 06:57:40 +0000 (14:57 +0800)]
drm/rockchip: vop: export line flag function
VOP have integrated a hardware counter which indicate the exact display
line that vop is scanning. And if we're interested in a specific line,
we can set the line number to vop line_flag register, and then vop would
generate a line_flag interrupt for it.
For example eDP PSR function is interested in the vertical blanking
period, then driver could set the line number to zero.
This patch have exported a symbol that allow other driver to listen the
line flag event with given timeout limit:
- rockchip_drm_wait_line_flag()
Signed-off-by: Yakir Yang <ykk@rock-chips.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Sean Paul [Mon, 8 Aug 2016 18:53:18 +0000 (14:53 -0400)]
drm/bridge: analogix_dp: Ensure the panel is properly prepared/unprepared
Instead of just preparing the panel on bind, actually prepare/unprepare
during modeset/disable. The panel must be prepared in order to read hpd
status and edid, so we need to keep state around the prepares in order
to ensure we don't accidentally turn the panel off at the wrong time.
Reviewed-by: Yakir Yang <ykk@rock-chips.com>
Tested-by: Yakir Yang <ykk@rock-chips.com>
Reviewed-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Mark Yao [Wed, 20 Apr 2016 06:20:49 +0000 (14:20 +0800)]
dt-bindings: add compatible strings for big/little rockchip vops
This patch documents the compatible strings for the big and little vop
in rockchip's drm driver.
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
[seanpaul removed superfluous description per tfiga's review]
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Mark Yao [Wed, 20 Apr 2016 06:18:14 +0000 (14:18 +0800)]
dt-bindings: sort Rockchip vop compatible by chip's number
Reorder the compatible vop devices to be sorted by chip number
in ascending order.
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
[seanpaul added commit description per tfiga's review]
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Mark Yao [Wed, 20 Apr 2016 06:18:16 +0000 (14:18 +0800)]
drm/rockchip: vop: add rk3399 vop support
There are two VOP in rk3399 chip, respectively VOP_BIG and VOP_LIT.
most registers layout of this two vop is same, their framework are both
VOP_FULL, the Major differences of this two is that:
VOP_BIG max output resolution is 4096x2160.
VOP_LIT max output resolution is 2560x1600
VOP_BIG support four windows.
VOP_LIT only support two windows.
RK3399 vop register layout is similar with rk3288, so some feature
can reuse with rk3288.
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Mark Yao [Wed, 20 Apr 2016 06:18:15 +0000 (14:18 +0800)]
drm/rockchip: vop: introduce VOP_REG_MASK
Some new vop register support mask, bit[16-31] is mask,
bit[0-15] is value, the mask is correspond to the value.
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
[seanpaul masked 'v' per tfiga's review comments]
Reviewed-by: Mark Yao <mark.yao@rock-chips.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Mark Yao [Mon, 15 Aug 2016 21:48:29 +0000 (14:48 -0700)]
drm/rockchip: sort registers define by chip's number
No functional changes, sort the vop registers to make
code more readable.
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
[seanpaul resolved conflict with name change from _3066 to _3036]
Reviewed-by: Mark Yao <mark.yao@rock-chips.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Markus Elfring [Tue, 16 Aug 2016 12:25:35 +0000 (14:25 +0200)]
drm/rockchip: Delete unnecessary assignment for the field "owner"
The field "owner" is set by the core.
Thus delete an unneeded initialisation.
Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/41e48fd3-f713-7225-1df2-3b1f4758f949@users.sourceforge.net
Markus Elfring [Tue, 16 Aug 2016 11:52:19 +0000 (13:52 +0200)]
drm/bridge: dw-hdmi: Delete unnecessary assignment for the field "owner"
The field "owner" is set by the core.
Thus delete an unneeded initialisation.
Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/7c97565d-eee3-45e9-b494-9e802977502c@users.sourceforge.net
Sean Paul [Mon, 15 Aug 2016 23:12:29 +0000 (16:12 -0700)]
drm/rockchip: Don't continue trying to enable crtc on failure
If vop_enable fails, don't continue on, it causes system hangs.
Reviewed-by: Yakir Yank <ykk@rock-chips.com>
Tested-by: Yakir Yank <ykk@rock-chips.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1471302749-2811-1-git-send-email-seanpaul@chromium.org
Noralf Trønnes [Tue, 23 Aug 2016 11:54:06 +0000 (13:54 +0200)]
drm/fb-helper: Add drm_fb_helper_set_suspend_unlocked()
This adds a function that also takes the console lock before calling
fb_set_suspend() in contrast to drm_fb_helper_set_suspend() which is
a plain wrapper around fb_set_suspend().
Resume is run asynchronously using a worker if the console lock is
already taken. This is modelled after the i915 driver.
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1471953246-29602-1-git-send-email-noralf@tronnes.org
Chris Wilson [Mon, 22 Aug 2016 20:44:52 +0000 (21:44 +0100)]
drm/fb-helper: Fix the dummy remove_conflicting_framebuffers
We always need to remove conflicting framebuffers if any other fb driver
is enabled, and not just if we are setting up an fbdev ourselves.
Unfortunately remove_conflicting_framebuffers() was incorrectly stubbed
out if !fbdev rather than !fb leading to major memory corruption (and
corrupt filesystems) upon boot.
Fixes: 44adece57e26 ("drm/fb-helper: Add a dummy remove_conflicting_framebuffers")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Cc: Noralf Trønnes <noralf@tronnes.org>
Cc: tomi.valkeinen@ti.com
Cc: dh.herrmann@gmail.com
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20160822204452.2509-1-chris@chris-wilson.co.uk
Jamie Lentin [Mon, 22 Aug 2016 22:17:34 +0000 (23:17 +0100)]
drm/udl: Ensure channel is selected before using the device.
Lift configuration command from udlfb. This appears to be essential for
at least a Rextron VCUD-60, without which no URB communication occurs.
Signed-off-by: Jamie Lentin <jm@lentin.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1471904254-26545-1-git-send-email-jm@lentin.co.uk
Chris Wilson [Fri, 19 Aug 2016 07:37:50 +0000 (08:37 +0100)]
drm: Avoid calling dev_printk(.dev = NULL)
Since dev_printk likes to print "(NULL device *):" when passed in a NULL
pointer, we have to manually call printk() ourselves.
Fixes: c4e68a583202 ("drm: Introduce DRM_DEV_* log messages")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Eric Engestrom <eric.engestrom@imgtec.com>
Cc: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20160819073750.16610-1-chris@chris-wilson.co.uk
Heinrich Schuchardt [Sun, 21 Aug 2016 17:56:19 +0000 (19:56 +0200)]
drm: avoid exposing kernel stack in compat_drm_getstats
The C standard does not specify the size of the integer used
to store an enum. Hence in structure drm_stats32_t alignment
bytes may exist.
To avoid exposing bytes from the kernel stack it is
necessary to initialize variable s32 completely.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1471802179-2886-1-git-send-email-xypron.glpk@gmx.de
Rob Clark [Fri, 19 Aug 2016 20:55:34 +0000 (16:55 -0400)]
reservation: fix small comment typo
Signed-off-by: Rob Clark <robdclark@gmail.com>
[danvet: Mark up as function for proper cross-linking.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1471640134-30888-1-git-send-email-robdclark@gmail.com
Laurent Pinchart [Fri, 19 Aug 2016 08:39:29 +0000 (11:39 +0300)]
drm: Don't implement empty prepare_fb()/cleanup_fb()
The plane .prepare_fb() and .cleanup_fb() helpers are optional, there's
no need to implement empty stubs, and no need to explicitly set the
function pointers to NULL either.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
[danvet: Resolved conflicts with Chris' patch.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Markus Elfring [Thu, 18 Aug 2016 20:35:14 +0000 (22:35 +0200)]
virtio-gpu: Use memdup_user() rather than duplicating its implementation
Reuse existing functionality from memdup_user() instead of keeping
duplicate source code.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/401e68fc-5515-7a7a-be2e-503dee676b34@users.sourceforge.net
Markus Elfring [Thu, 18 Aug 2016 16:12:03 +0000 (18:12 +0200)]
GPU-DRM-Savage: Use memdup_user() rather than duplicating
Reuse existing functionality from memdup_user() instead of keeping
duplicate source code.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/021efa32-c259-e799-a80e-630972291815@users.sourceforge.net
Chris Wilson [Thu, 18 Aug 2016 18:00:16 +0000 (19:00 +0100)]
drm: Allow drivers to modify plane_state in prepare_fb/cleanup_fb
The drivers have to modify the atomic plane state during the prepare_fb
callback so they track allocations, reservations and dependencies for
this atomic operation involving this fb. In particular, how else do we
set the plane->fence from the framebuffer!
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20160818180017.20508-1-chris@chris-wilson.co.uk
Sean Paul [Fri, 12 Aug 2016 17:00:54 +0000 (13:00 -0400)]
drm/rockchip: Use DRM_DEV_ERROR in vop
Since we can have multiple vops, use DRM_DEV_ERROR to
make logs easier to process.
Acked-by: Mark Yao <mark.yao@rockchip.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1471021254-2563-3-git-send-email-seanpaul@chromium.org
Sean Paul [Mon, 15 Aug 2016 23:18:04 +0000 (16:18 -0700)]
drm: Introduce DRM_DEV_* log messages
This patch consolidates all the various log functions/macros into
one uber function, drm_log. It also introduces some new DRM_DEV_*
variants that print the device name to delineate multiple devices
of the same type.
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1471303084-3757-1-git-send-email-seanpaul@chromium.org
Clint Taylor [Mon, 15 Aug 2016 17:31:28 +0000 (10:31 -0700)]
drm/edid: CEA mode 64 1080p100 vsync pulse width incorrect
In the CEA-861 specification VIC 64 specifies a vsync pulse of 5 and
a backporch of 36. Adjust vsync pulse width to match specification.
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Clint Taylor <clinton.a.taylor@intel.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1471282288-30909-1-git-send-email-clinton.a.taylor@intel.com
Daniel Vetter [Wed, 17 Aug 2016 11:59:40 +0000 (13:59 +0200)]
Revert "drm/hisilicon: Don't set drm_device->platformdev"
This reverts commit
d25bcfb8c2e18b9b36f037f38be4d4792ebf8d57.
I somehow missed that it only compiles on arm64 and broke the driver
rather badly.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Randy Dunlap [Tue, 16 Aug 2016 23:31:00 +0000 (16:31 -0700)]
dma-buf: fix kernel-doc warning and typos
Fix dma-buf kernel-doc warning and 2 minor typos in
fence_array_create().
Fixes this warning:
..//drivers/dma-buf/fence-array.c:124: warning: No description found for
parameter 'signal_on_any'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: linux-media@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linaro-mm-sig@lists.linaro.org
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: http://patchwork.freedesktop.org/patch/msgid/224865a5-947d-9a28-c60a-18fa86bc9329@infradead.org
Daniel Vetter [Fri, 12 Aug 2016 20:48:57 +0000 (22:48 +0200)]
drm: Fix kerneldoc in drm_plane_helper.c
Ville ocd'ed the parameter name, but forgot to update the docs!
Fixes: df86af9133b4 ("drm/plane-helper: Add drm_plane_helper_check_state()")
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1471034937-651-21-git-send-email-daniel.vetter@ffwll.ch
Daniel Vetter [Fri, 12 Aug 2016 20:48:56 +0000 (22:48 +0200)]
vgaarbiter: rst-ifiy and polish kerneldoc
Move the documentation into Documentation/gpu, link it up and pull in
the kernel doc.
No actual text changes except that I did polish the kerneldoc a bit,
especially for vga_client_register().
v2: Remove some rst from vga-switcheroo.rst that I don't understand,
but which seems to be the reason why the new vgaarbiter.rst sometimes
drops out of the sidebar index.
v3: Drop one level of headings and clarify the vgaarb one a bit.
v4: Fix some typos (Sean).
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Cc: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1471034937-651-20-git-send-email-daniel.vetter@ffwll.ch
Daniel Vetter [Fri, 12 Aug 2016 20:48:55 +0000 (22:48 +0200)]
drm: document drm_display_info
We seem to have a bit a mess in how to describe the bus formats, with
a multitude of competing ways. Might be best to consolidate it all and
use MEDIA_BUS_FMT_ also for the hdmi color formats and high color
modes.
Also move all the display_info related functions into drm_connector.c
(there's only one) to group it all together. I did decided against
also moving the edid related display info functions, they seem to fit
better in drm_edid.c. Instead sprinkle a few cross references around.
While at that reduce the kerneldoc for static functions, there's not
point in documenting internals with that much detail really.
v2: Fix typo and move misplaced hunk (Sean).
Cc: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1471034937-651-19-git-send-email-daniel.vetter@ffwll.ch
Daniel Vetter [Fri, 12 Aug 2016 20:48:54 +0000 (22:48 +0200)]
drm: Remove display_info->min/max_(h|v)max
No one looks at it, only i915/gma500 lvds even bother to fill it
out. I guess a very old plan was to use this for filtering modes,
but that's already done within the edid parser.
v2: Move misplaced hunk to this patch.
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1471034937-651-18-git-send-email-daniel.vetter@ffwll.ch
Daniel Vetter [Fri, 12 Aug 2016 20:48:53 +0000 (22:48 +0200)]
drm: Update connector documentation
- Shuffle docs from drm-kms.rst into the structure docs where it makes
sense.
- Put the remaining bits into a new overview section.
One thing I've changed is around probing: Old docs says that you
_must_ use the probe helpers, which isn't correct. Helpers are always
optional.
v2: Review from Sean.
Cc: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1471034937-651-17-git-send-email-daniel.vetter@ffwll.ch
Daniel Vetter [Fri, 12 Aug 2016 20:48:52 +0000 (22:48 +0200)]
drm: Don't export dp-aux devnode functions
They're only used internally within the dp helpers. Also nuke the
kerneldoc (we only document the driver interface in the drm shared
functions). And move the header file from the public include/
directory to the source files into drm_crtc_helper_internal.h, similar
to how we already have drm_crtc_internal.h.
While at it also move drm_fb_helper_modinit since that belongs in
there, too.
I noticed this all since I spotted kerneldoc which wasn't pulled into
the rst templates.
v2: Update Copyright date.
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Rafael Antognolli <rafael.antognolli@intel.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1471034937-651-16-git-send-email-daniel.vetter@ffwll.ch
Daniel Vetter [Fri, 12 Aug 2016 20:48:51 +0000 (22:48 +0200)]
drm/doc: Include new drm_blend.c
There's not much point in kerneldoc if it's not included:
- It won't show up in the pretty html pages.
- The comments itself won't get parsed, which means 0day won't pick up
changes, resulting in stale docs fast.
Also, uapi really should be core, not helpers, so move drm_blend.c to
that. That also means that the zpos normilize function loses it's
helper status (and we might as well call it always). For that,
EXPORT_SYMBOL. Just spotted while integrating docs and noticing that
one was missing.
With sphinx there's really no excuse any more to not build the docs
and make sure it's all nice!
$ make DOCBOOKS="" htmldocs
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1471034937-651-15-git-send-email-daniel.vetter@ffwll.ch
Daniel Vetter [Fri, 12 Aug 2016 20:48:50 +0000 (22:48 +0200)]
drm: Extract drm_connector.[hc]
Pulls in quite a lot of connector related structures (cmdline mode,
force/status enums, display info), but I think that all makes perfect
sense.
Also had to move a few more core kms object stuff into drm_modeset.h.
And as a first cleanup remove the kerneldoc for the 2 connector IOCTL
- DRM core docs are aimed at drivers, no point documenting internal in
excruciating detail.
v2: And also pull in all the connector property code.
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1471034937-651-14-git-send-email-daniel.vetter@ffwll.ch
Daniel Vetter [Fri, 12 Aug 2016 20:48:49 +0000 (22:48 +0200)]
drm: Export drm_property_replace_global_blob
It's really part of the core blob interface, and the drm_connector.c
extraction needs it too.
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1471034937-651-13-git-send-email-daniel.vetter@ffwll.ch
Lothar Waßmann [Tue, 16 Aug 2016 13:34:37 +0000 (15:34 +0200)]
drm: update kerneldoc for changes introduced by commits "
16fadc2568e9" and "
9671e228fb78"
Describe the new parameter 'bus_flags' to of_get_drm_display_mode() in
the kerneldoc comments and add kerneldoc comments to the new function
drm_bus_flags_from_videomode().
Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1471354477-25877-1-git-send-email-LW@KARO-electronics.de
Daniel Vetter [Fri, 12 Aug 2016 20:48:48 +0000 (22:48 +0200)]
drm/doc: Update drm_framebuffer docs
- Move the intro section into a DOC comment, and update it slightly.
- kernel-doc for struct drm_framebuffer!
v2:
- Copypaste fail (Sean).
- Explain the linear @offsets clearer (Ville).
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1471034937-651-12-git-send-email-daniel.vetter@ffwll.ch
Daniel Vetter [Mon, 15 Aug 2016 14:07:02 +0000 (16:07 +0200)]
drm: Extract drm_framebuffer.[hc]
Also start with drm_modeset.h with the core bits, since we need
to untangle this mess somehow. That allows us to move the drm_modes.h
include to the right spot, except for the temporary connector status
enum. That will get fixed as soon as drm_connector.h exists.
v2: Rebase.
v3: Move drm_crtc_force_disable_all back again, that wasn't meant to
be moved (Sean).
v4: Rebase.
Cc: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Daniel Vetter [Fri, 12 Aug 2016 20:48:46 +0000 (22:48 +0200)]
drm/doc: Include drm_atomic.h
Accidentally the wrong file. Oops.
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1471034937-651-10-git-send-email-daniel.vetter@ffwll.ch
Daniel Vetter [Fri, 12 Aug 2016 20:48:45 +0000 (22:48 +0200)]
drm/kms: Nuke dirty_info property
It was added way back together with the dirty_fb ioctl, but neither
generic xfree86-modesetting nor the vmware driver use it. Everyone is
supposed to just unconditionally call the dirtyfb when they do
frontbuffer rendering.
And since unused uabi is bad uabi (there's reasons we require open
source userspace for everything) let's nuke this.
For reference see
commit
884840aa3ce3214259e69557be5b4ce0d781ffa4
Author: Jakob Bornecrantz <jakob@vmware.com>
Date: Thu Dec 3 23:25:47 2009 +0000
drm: Add dirty ioctl and property
Cc: Jakob Bornecrantz <jakob@vmware.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Sinclair Yeh <syeh@vmware.com>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Acked-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1471034937-651-9-git-send-email-daniel.vetter@ffwll.ch
Daniel Vetter [Fri, 12 Aug 2016 20:48:44 +0000 (22:48 +0200)]
drm/doc: Remove outdated FIXME for the page_flip callback
Since the drm_event cleanup work (as prep for fence support) drivers
don't need to bother themselves any more with this, the drm event core
takes care of that.
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1471034937-651-8-git-send-email-daniel.vetter@ffwll.ch
Daniel Vetter [Fri, 12 Aug 2016 20:48:43 +0000 (22:48 +0200)]
drm/hisilicon: Don't set drm_device->platformdev
It's deprecated and only should be used by drivers which still use
drm_platform_init, not by anyone else.
And indeed it's entirely unused and can be nuked.
This required a bit more fudging, but I guess kirin_dc_ops really
wants to operate on the platform_device, not something else. Also
bonus points for implementing abstraction, and then storing the vfunc
in a global variable.
Cc: Xinliang Liu <xinliang.liu@linaro.org>
Cc: Xinwei Kong <kong.kongxinwei@hisilicon.com>
Cc: Archit Taneja <architt@codeaurora.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1471034937-651-7-git-send-email-daniel.vetter@ffwll.ch
Daniel Vetter [Fri, 12 Aug 2016 20:48:42 +0000 (22:48 +0200)]
drm/etnaviv: Don't set drm_device->platformdev
It's deprecated and only should be used by drivers which still use
drm_platform_init, not by anyone else.
And indeed it's entirely unused and can be nuked.
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Christian Gmeiner <christian.gmeiner@gmail.com>
Acked-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1471034937-651-6-git-send-email-daniel.vetter@ffwll.ch
Daniel Vetter [Fri, 12 Aug 2016 20:48:41 +0000 (22:48 +0200)]
drm/doc: Reorg for drm-kms.rst
- Again adjust headings a bit, and don't mix up the initialization
sections with other stuff.
- Remove the doc for output polling, that vfunc is now properly
documented in the vfunc reference sections.
- Move the grab-bag with all the core stuff (i.e. drm_crtc.[hc]) to
the front for a more prominent place.
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1471034937-651-5-git-send-email-daniel.vetter@ffwll.ch
Daniel Vetter [Fri, 12 Aug 2016 20:48:40 +0000 (22:48 +0200)]
drm/doc: Reorg drm-mm.rst
- Readjust headings - we lost one level through the extraction into a
separate .rst file.
- Merge helper reference sections with the helper documentation - that
split was just an artifact of the docbook toolchain sucking at too
deep nesting levels. No such problems with sphinx.
- Move the cma helpers in with the gem documentation, since they're
helpers to implement gem using CMA/dma memory as a backend.
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1471034937-651-4-git-send-email-daniel.vetter@ffwll.ch
Daniel Vetter [Fri, 12 Aug 2016 20:48:39 +0000 (22:48 +0200)]
drm/kms-helpers: Extract drm_modeset_helper.[hc]
While reviewing docs I spotted that we have a few functions that
really just don't fit into their containing helper library section.
Extract them and shovel them all into a new library for random one-off
aux stuff.
v2: Remove wrongly added files for real.
Cc: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1471034937-651-3-git-send-email-daniel.vetter@ffwll.ch
Daniel Vetter [Fri, 12 Aug 2016 20:48:38 +0000 (22:48 +0200)]
drm/doc: Light drm-kms-helper.rst cleanup
- Move the common vtable stuff to the top
- Move "Tile Group" to a more appropriate heading level
- Throw away the old intro for the crtc helpers (it's entirely stale,
e.g. helpers have become modular years ago), and replace it with a
general intro about the motivation behind helpers.
- Reorder helpers to group them together a bit better, and explain
that grouping in the intro.
- Make sure the introductory DOC section is always first.
v2:
- Remove bogus files accidentally added (Sean).
- Spelling fixes (Sean).
Cc: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1471034937-651-2-git-send-email-daniel.vetter@ffwll.ch
Daniel Vetter [Fri, 12 Aug 2016 20:48:37 +0000 (22:48 +0200)]
drm/doc: Fix more kerneldoc/sphinx warnings
These are the leftovers I could only track down using keep_warnings =
True. For some of them we might want to update our style guide on how
to reference structures and constants, not sure ...
Cc: Markus Heiser <markus.heiser@darmarit.de>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1471034937-651-1-git-send-email-daniel.vetter@ffwll.ch
Shawn Guo [Tue, 16 Aug 2016 07:06:08 +0000 (15:06 +0800)]
drm: drop DRIVER_HAVE_IRQ flag for some drivers
Since commit
4984979b9b90 ("drm/irq: simplify irq checks in
drm_wait_vblank"), the drm driver feature flag DRIVER_HAVE_IRQ is only
required for drivers that have an IRQ handler managed by the DRM core.
Some drivers, armada, etnaviv, kirin and sti, set this flag without
.irq_handler setup in drm_driver. These drivers manage IRQ handler
by themselves and the flag DRIVER_HAVE_IRQ makes no sense there.
Drop the flag for these drivers to avoid confusion.
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Cc: Vincent Abriou <vincent.abriou@st.com>
Cc: Xinliang Liu <z.liuxinliang@hisilicon.com>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk> (for armada and etnaviv)
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1471331168-5601-1-git-send-email-shawnguo@kernel.org
Eric Engestrom [Mon, 15 Aug 2016 15:29:55 +0000 (16:29 +0100)]
drm: remove `const` attribute to hint at caller that they now own the memory
Signed-off-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Wei Yongjun [Mon, 15 Aug 2016 15:03:51 +0000 (15:03 +0000)]
drm/mgag200: fix error return code in mgag200fb_create()
Fix to return error code -ENOMEM from the vmalloc() error handling
case instead of 0, as done elsewhere in this function.
Fixes: aec9e12953e7 ("drm/mgag200: Fix error handling paths in fbdev driver")
Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1471273431-6753-1-git-send-email-weiyj.lk@gmail.com
Chris Wilson [Mon, 15 Aug 2016 15:42:18 +0000 (16:42 +0100)]
dma-buf: Wait on the reservation object when sync'ing before CPU access
Rendering operations to the dma-buf are tracked implicitly via the
reservation_object (dmabuf->resv). This is used to allow poll() to
wait upon outstanding rendering (or just query the current status of
rendering). The dma-buf sync ioctl allows userspace to prepare the
dma-buf for CPU access, which should include waiting upon rendering.
(Some drivers may need to do more work to ensure that the dma-buf mmap
is coherent as well as complete.)
v2: Always wait upon the reservation object implicitly. We choose to do
it after the native handler in case it can do so more efficiently.
Testcase: igt/prime_vgem
Testcase: igt/gem_concurrent_blit # *vgem*
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Eric Anholt <eric@anholt.net>
Cc: linux-media@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linaro-mm-sig@lists.linaro.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1471275738-31994-1-git-send-email-chris@chris-wilson.co.uk
Eric Engestrom [Mon, 15 Aug 2016 00:02:38 +0000 (01:02 +0100)]
drm: make drm_get_format_name thread-safe
Signed-off-by: Eric Engestrom <eric@engestrom.ch>
[danvet: Clarify that the returned pointer must be freed with
kfree().]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Dave Airlie [Mon, 15 Aug 2016 06:53:57 +0000 (16:53 +1000)]
Merge tag 'drm-intel-next-2016-08-08' of git://anongit.freedesktop.org/drm-intel into drm-next
- refactor ddi buffer programming a bit (Ville)
- large-scale renaming to untangle naming in the gem code (Chris)
- rework vma/active tracking for accurately reaping idle mappings of shared
objects (Chris)
- misc dp sst/mst probing corner case fixes (Ville)
- tons of cleanup&tunings all around in gem
- lockless (rcu-protected) request lookup, plus use it everywhere for
non(b)locking waits (Chris)
- pipe crc debugfs fixes (Rodrigo)
- random fixes all over
* tag 'drm-intel-next-2016-08-08' of git://anongit.freedesktop.org/drm-intel: (222 commits)
drm/i915: Update DRIVER_DATE to
20160808
drm/i915: fix aliasing_ppgtt leak
drm/i915: Update comment before i915_spin_request
drm/i915: Use drm official vblank_no_hw_counter callback.
drm/i915: Fix copy_to_user usage for pipe_crc
Revert "drm/i915: Track active streams also for DP SST"
drm/i915: fix WaInsertDummyPushConstPs
drm/i915: Assert that the request hasn't been retired
drm/i915: Repack fence tiling mode and stride into a single integer
drm/i915: Document and reject invalid tiling modes
drm/i915: Remove locking for get_tiling
drm/i915: Remove pinned check from madvise ioctl
drm/i915: Reduce locking inside swfinish ioctl
drm/i915: Remove (struct_mutex) locking for busy-ioctl
drm/i915: Remove (struct_mutex) locking for wait-ioctl
drm/i915: Do a nonblocking wait first in pread/pwrite
drm/i915: Remove unused no-shrinker-steal
drm/i915: Tidy generation of the GTT mmap offset
drm/i915/shrinker: Wait before acquiring struct_mutex under oom
drm/i915: Simplify do_idling() (Ironlake vt-d w/a)
...
Dave Airlie [Mon, 15 Aug 2016 06:46:36 +0000 (16:46 +1000)]
Merge tag 'topic/drm-misc-2016-08-12' of git://anongit.freedesktop.org/drm-intel into drm-next
- more fence destaging and cleanup (Gustavo&Sumit)
- DRIVER_LEGACY to untangle from DRIVER_MODESET
- drm_mm refactor (Chris)
- fbdev-less compile fies
- clipped plane src/dst rects (Ville)
- + a few mediatek patches that build on top of that (Bibby+Daniel)
- small stuff all over really
* tag 'topic/drm-misc-2016-08-12' of git://anongit.freedesktop.org/drm-intel: (43 commits)
dma-buf/fence: kerneldoc: remove spurious section header
dma-buf/fence: kerneldoc: remove unused struct members
Revert "gpu: drm: omapdrm: dss-of: add missing of_node_put after calling of_parse_phandle"
drm: Protect fb_defio in drivers with CONFIG_KMS_FBDEV_EMULATION
drm/radeon|amgpu: Make fbdev emulation optional
drm/vmwgfx: select CONFIG_FB
drm: Remove superflous linux/fb.h includes
drm/fb-helper: Add a dummy remove_conflicting_framebuffers
dma-buf/sync_file: only enable fence signalling on poll()
Documentation: add doc for sync_file_get_fence()
dma-buf/sync_file: add sync_file_get_fence()
dma-buf/sync_file: refactor fence storage in struct sync_file
dma-buf/fence-array: add fence_is_array()
drm/dp_helper: Rate limit timeout errors from drm_dp_i2c_do_msg()
drm/dp_helper: Print first error received on failure in drm_dp_dpcd_access()
drm: Add ratelimited versions of the DRM_DEBUG* macros
drm: Make sure drm_vblank_no_hw_counter isn't abused
drm/mediatek: Fix mtk_atomic_complete for runtime_pm
drm/mediatek: plane: Use FB's format's cpp to compute x offset
drm/mediatek: plane: Merge mtk_plane_enable into mtk_plane_atomic_update
...
Dave Airlie [Mon, 15 Aug 2016 06:41:45 +0000 (16:41 +1000)]
Merge tag 'imx-drm-next-2016-08-12' of git://git.pengutronix.de/git/pza/linux into drm-next
imx-drm updates and encoder atomic_mode_set helper callback
- add pixel clock and DE polarity configuration from device tree
using display timing bindings for parallel and LVDS output
- cleanup/remove trivial functions
- cleanup and fixes in preparation for capture support
- add atomic_mode_set helper and use it in imx-ldb - this is an
alternative to the encoder mode_set callback that passes the
crtc and connector state instead of just the mode. It allows
drivers to get information from the attached connector without
having to iterate over all connectors
- add drm_bridge support to imx-ldb, for bridges attached via LVDS
* tag 'imx-drm-next-2016-08-12' of git://git.pengutronix.de/git/pza/linux:
drm/imx-ldb: Add support to drm-bridge
drm/imx: imx-ldb: use encoder atomic_mode_set callback
drm/atomic-helper: Add atomic_mode_set helper callback
drm/imx: Remove imx_drm_handle_vblank()
gpu: ipu-v3: Add missing IDMAC channel names
gpu: ipu-v3: rename CSI client device
gpu: ipu-v3: Fix IRT usage
gpu: ipu-v3: Fix CSI data format for 16-bit media bus formats
gpu: ipu-v3: set correct full sensor frame for PAL/NTSC
gpu: ipu-v3: Add VDI input IDMAC channels
gpu: ipu-v3: Add ipu_get_num()
gpu: ipu-cpmem: Add ipu_cpmem_get_burstsize()
gpu: ipu-cpmem: Add ipu_cpmem_set_uv_offset()
drm/imx: Remove imx_drm_crtc_id()
drm/imx: Remove imx_drm_crtc_vblank_get/_put()
drm/imx: convey the pixelclk-active and de-active flags from DT to the ipu-di driver
drm: add a helper function to extract 'de-active' and 'pixelclk-active' from DT
Dave Airlie [Mon, 15 Aug 2016 06:41:17 +0000 (16:41 +1000)]
Merge tag 'mediatek-drm-next-2016-08-12' of git://git.pengutronix.de/git/pza/linux into drm-next
mediatek-drm maintainers and gamma correction
- add MAINTAINERS entry for mediatek-drm driver
- add support for AAL and GAMMA engines
- hook up gamma correction LUT
- add support for temporal dithering to OD and GAMMA engines
* tag 'mediatek-drm-next-2016-08-12' of git://git.pengutronix.de/git/pza/linux:
drm/mediatek: set mt8173 dithering function
drm/mediatek: Add gamma correction.
drm/mediatek: Add GAMMA engine basic function
drm/mediatek: Add AAL engine basic function
drm: mediatek: add Maintainers entry for Mediatek DRM drivers
Dave Airlie [Mon, 15 Aug 2016 06:39:28 +0000 (16:39 +1000)]
Merge branch 'drm-next-tilcdc-atomic' of https://github.com/jsarha/linux into drm-next
Please pull tilcdc atomic modeset support and some non critical fixes.
* 'drm-next-tilcdc-atomic' of https://github.com/jsarha/linux: (29 commits)
drm/tilcdc: Change tilcdc_crtc_page_flip() to tilcdc_crtc_update_fb()
drm/tilcdc: Remove unnecessary pm_runtime_get() and *_put() calls
drm/tilcdc: Get rid of legacy dpms mechanism
drm/tilcdc: Use drm_atomic_helper_resume/suspend()
drm/tilcdc: Enable and disable interrupts in crtc start() and stop()
drm/tilcdc: tfp410: Add atomic modeset helpers to connector funcs
drm/tilcdc: tfp410: Set crtc panel info at init phase
drm/tilcdc: panel: Add atomic modeset helpers to connector funcs
drm/tilcdc: panel: Set crtc panel info at init phase
drm/tilcdc: Remove tilcdc_verify_fb()
drm/tilcdc: Remove obsolete crtc helper functions
drm/tilcdc: Set DRIVER_ATOMIC and use atomic crtc helpers
drm/tilcdc: Add drm_mode_config_reset() call to tilcdc_load()
drm/tilcdc: Add atomic mode config funcs
drm/tilcdc: Add tilcdc_crtc_atomic_check()
drm/tilcdc: Add tilcdc_crtc_mode_set_nofb()
drm/tilcdc: Initialize dummy primary plane from crtc init
drm/tilcdc: Add dummy primary plane implementation
drm/tilcdc: Make tilcdc_crtc_page_flip() work if crtc is not yet on
drm/tilcdc: Make tilcdc_crtc_page_flip() public
...
Linus Torvalds [Mon, 15 Aug 2016 02:11:36 +0000 (19:11 -0700)]
Linux 4.8-rc2
Linus Torvalds [Mon, 15 Aug 2016 02:01:31 +0000 (19:01 -0700)]
Merge branch 'next' of git://git./linux/kernel/git/rzhang/linux
Pull thermal updates from Zhang Rui:
- Fix a race condition when updating cooling device, which may lead to
a situation where a thermal governor never updates the cooling
device. From Michele Di Giorgio.
- Fix a zero division error when disabling the forced idle injection
from the intel powerclamp. From Petr Mladek.
- Add suspend/resume callback for intel_pch_thermal thermal driver.
From Srinivas Pandruvada.
- Another two fixes for clocking cooling driver and hwmon sysfs I/F.
From Michele Di Giorgio and Kuninori Morimoto.
[ Hmm. That suspend/resume callback for intel_pch_thermal doesn't look
like a fix, but I'm letting it slide.. - Linus ]
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
thermal: clock_cooling: Fix missing mutex_init()
thermal: hwmon: EXPORT_SYMBOL_GPL for thermal hwmon sysfs
thermal: fix race condition when updating cooling device
thermal/powerclamp: Prevent division by zero when counting interval
thermal: intel_pch_thermal: Add suspend/resume callback
Linus Torvalds [Mon, 15 Aug 2016 01:54:37 +0000 (18:54 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/gerg/m68knommu
Pull m68knommu fix from Greg Ungerer:
"This contains only a single fix for a register corruption problem on
certain types of m68k flat format binaries"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
m68knommu: fix user a5 register being overwritten
Linus Torvalds [Sun, 14 Aug 2016 02:39:38 +0000 (19:39 -0700)]
Merge tag 'fixes-for-linus-4.8' of git://git./linux/kernel/git/groeck/linux-staging
Pull h8300 and unicore32 architecture fixes from Guenter Roeck:
"Two patches to fix h8300 and unicore32 builds.
unicore32 builds have been broken since v4.6. The fix has been
available in -next since March of this year.
h8300 builds have been broken since the last commit window. The fix
has been available in -next since June of this year"
* tag 'fixes-for-linus-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
h8300: Add missing include file to asm/io.h
unicore32: mm: Add missing parameter to arch_vma_access_permitted
Linus Torvalds [Sun, 14 Aug 2016 02:29:46 +0000 (19:29 -0700)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- support for nr_cpus= command line argument (maxcpus was previously
changed to allow secondary CPUs to be hot-plugged)
- ARM PMU interrupt handling fix
- fix potential TLB conflict in the hibernate code
- improved handling of EL1 instruction aborts (better error reporting)
- removal of useless jprobes code for stack saving/restoring
- defconfig updates
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: defconfig: enable CONFIG_LOCALVERSION_AUTO
arm64: defconfig: add options for virtualization and containers
arm64: hibernate: handle allocation failures
arm64: hibernate: avoid potential TLB conflict
arm64: Handle el1 synchronous instruction aborts cleanly
arm64: Remove stack duplicating code from jprobes
drivers/perf: arm-pmu: Fix handling of SPI lacking "interrupt-affinity" property
drivers/perf: arm-pmu: convert arm_pmu_mutex to spinlock
arm64: Support hard limit of cpu count by nr_cpus
Linus Torvalds [Sat, 13 Aug 2016 17:11:14 +0000 (10:11 -0700)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm
Pull KVM fixes from Radim Krčmář:
"KVM:
- lock kvm_device list to prevent corruption on device creation.
PPC:
- split debugfs initialization from creation of the xics device to
unlock the newly taken kvm lock earlier.
s390:
- prevent userspace from triggering two WARN_ON_ONCE.
MIPS:
- fix several issues in the management of TLB faults (Cc: stable)"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
MIPS: KVM: Propagate kseg0/mapped tlb fault errors
MIPS: KVM: Fix gfn range check in kseg0 tlb faults
MIPS: KVM: Add missing gfn range check
MIPS: KVM: Fix mapped fault broken commpage handling
KVM: Protect device ops->create and list_add with kvm->lock
KVM: PPC: Move xics_debugfs_init out of create
KVM: s390: reset KVM_REQ_MMU_RELOAD if mapping the prefix failed
KVM: s390: set the prefix initially properly
Linus Torvalds [Sat, 13 Aug 2016 16:56:45 +0000 (09:56 -0700)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
- an NVMe fix from Gabriel, fixing a suspend/resume issue on some
setups
- addition of a few missing entries in the block queue sysfs
documentation, from Joe
- a fix for a sparse shadow warning for the bvec iterator, from
Johannes
- a writeback deadlock involving raid issuing barriers, and not
flushing the plug when we wakeup the flusher threads. From
Konstantin
- a set of patches for the NVMe target/loop/rdma code, from Roland and
Sagi
* 'for-linus' of git://git.kernel.dk/linux-block:
bvec: avoid variable shadowing warning
doc: update block/queue-sysfs.txt entries
nvme: Suspend all queues before deletion
mm, writeback: flush plugged IO in wakeup_flusher_threads()
nvme-rdma: Remove unused includes
nvme-rdma: start async event handler after reconnecting to a controller
nvmet: Fix controller serial number inconsistency
nvmet-rdma: Don't use the inline buffer in order to avoid allocation for small reads
nvmet-rdma: Correctly handle RDMA device hot removal
nvme-rdma: Make sure to shutdown the controller if we can
nvme-loop: Remove duplicate call to nvme_remove_namespaces
nvme-rdma: Free the I/O tags when we delete the controller
nvme-rdma: Remove duplicate call to nvme_remove_namespaces
nvme-rdma: Fix device removal handling
nvme-rdma: Queue ns scanning after a sucessful reconnection
nvme-rdma: Don't leak uninitialized memory in connect request private data
Guenter Roeck [Thu, 9 Jun 2016 03:11:58 +0000 (20:11 -0700)]
h8300: Add missing include file to asm/io.h
h8300 builds fail with
arch/h8300/include/asm/io.h:9:15: error: unknown type name ‘u8’
arch/h8300/include/asm/io.h:15:15: error: unknown type name ‘u16’
arch/h8300/include/asm/io.h:21:15: error: unknown type name ‘u32’
and many related errors.
Fixes: 23c82d41bdf4 ("kexec-allow-architectures-to-override-boot-mapping-fix")
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Guenter Roeck [Mon, 21 Mar 2016 11:20:53 +0000 (04:20 -0700)]
unicore32: mm: Add missing parameter to arch_vma_access_permitted
unicore32 fails to compile with the following errors.
mm/memory.c: In function ‘__handle_mm_fault’:
mm/memory.c:3381: error:
too many arguments to function ‘arch_vma_access_permitted’
mm/gup.c: In function ‘check_vma_flags’:
mm/gup.c:456: error:
too many arguments to function ‘arch_vma_access_permitted’
mm/gup.c: In function ‘vma_permits_fault’:
mm/gup.c:640: error:
too many arguments to function ‘arch_vma_access_permitted’
Fixes: d61172b4b695b ("mm/core, x86/mm/pkeys: Differentiate instruction fetches")
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Linus Torvalds [Fri, 12 Aug 2016 23:34:58 +0000 (16:34 -0700)]
Merge tag 'vfio-v4.8-rc2' of git://github.com/awilliam/linux-vfio
Pull VFIO fix from Alex Williamson:
"Fix oops when dereferencing empty data (Alex Williamson)"
* tag 'vfio-v4.8-rc2' of git://github.com/awilliam/linux-vfio:
vfio/pci: Fix NULL pointer oops in error interrupt setup handling
Linus Torvalds [Fri, 12 Aug 2016 23:28:41 +0000 (16:28 -0700)]
Merge tag 'nfsd-4.8-1' of git://linux-nfs.org/~bfields/linux
Pull nfsd fixes from Bruce Fields:
"Fixes for the dentry refcounting leak I introduced in 4.8-rc1, and for
races in the LOCK code which appear to go back to the big nfsd state
lock removal from 3.17"
* tag 'nfsd-4.8-1' of git://linux-nfs.org/~bfields/linux:
nfsd: don't return an unhashed lock stateid after taking mutex
nfsd: Fix race between FREE_STATEID and LOCK
nfsd: fix dentry refcounting on create
Linus Torvalds [Fri, 12 Aug 2016 23:23:58 +0000 (16:23 -0700)]
Merge tag 'pm-4.8-rc2' of git://git./linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"Two hibernation fixes allowing it to work with the recently added
randomization of the kernel identity mapping base on x86-64 and one
cpufreq driver regression fix.
Specifics:
- Fix the x86 identity mapping creation helpers to avoid the
assumption that the base address of the mapping will always be
aligned at the PGD level, as it may be aligned at the PUD level if
address space randomization is enabled (Rafael Wysocki).
- Fix the hibernation core to avoid executing tracing functions
before restoring the processor state completely during resume
(Thomas Garnier).
- Fix a recently introduced regression in the powernv cpufreq driver
that causes it to crash due to an out-of-bounds array access
(Akshay Adiga)"
* tag 'pm-4.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM / hibernate: Restore processor state before using per-CPU variables
x86/power/64: Always create temporary identity mapping correctly
cpufreq: powernv: Fix crash in gpstate_timer_handler()
Linus Torvalds [Fri, 12 Aug 2016 21:31:10 +0000 (14:31 -0700)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
"This is bigger than usual - the reason is partly a pent-up stream of
fixes after the merge window and partly accidental. The fixes are:
- five patches to fix a boot failure on Andy Lutomirsky's laptop
- four SGI UV platform fixes
- KASAN fix
- warning fix
- documentation update
- swap entry definition fix
- pkeys fix
- irq stats fix"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/apic/x2apic, smp/hotplug: Don't use before alloc in x2apic_cluster_probe()
x86/efi: Allocate a trampoline if needed in efi_free_boot_services()
x86/boot: Rework reserve_real_mode() to allow multiple tries
x86/boot: Defer setup_real_mode() to early_initcall time
x86/boot: Synchronize trampoline_cr4_features and mmu_cr4_features directly
x86/boot: Run reserve_bios_regions() after we initialize the memory map
x86/irq: Do not substract irq_tlb_count from irq_call_count
x86/mm: Fix swap entry comment and macro
x86/mm/kaslr: Fix -Wformat-security warning
x86/mm/pkeys: Fix compact mode by removing protection keys' XSAVE buffer manipulation
x86/build: Reduce the W=1 warnings noise when compiling x86 syscall tables
x86/platform/UV: Fix kernel panic running RHEL kdump kernel on UV systems
x86/platform/UV: Fix problem with UV4 BIOS providing incorrect PXM values
x86/platform/UV: Fix bug with iounmap() of the UV4 EFI System Table causing a crash
x86/platform/UV: Fix problem with UV4 Socket IDs not being contiguous
x86/entry: Clarify the RF saving/restoring situation with SYSCALL/SYSRET
x86/mm: Disable preemption during CR3 read+write
x86/mm/KASLR: Increase BRK pages for KASLR memory randomization
x86/mm/KASLR: Fix physical memory calculation on KASLR memory randomization
x86, kasan, ftrace: Put APIC interrupt handlers into .irqentry.text
Linus Torvalds [Fri, 12 Aug 2016 20:55:06 +0000 (13:55 -0700)]
Merge branch 'timers-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull timer fixes from Ingo Molnar:
"Misc fixes: a /dev/rtc regression fix, two APIC timer period
calibration fixes, an ARM clocksource driver fix and a NOHZ
power use regression fix"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/hpet: Fix /dev/rtc breakage caused by RTC cleanup
x86/timers/apic: Inform TSC deadline clockevent device about recalibration
x86/timers/apic: Fix imprecise timer interrupts by eliminating TSC clockevents frequency roundoff error
timers: Fix get_next_timer_interrupt() computation
clocksource/arm_arch_timer: Force per-CPU interrupt to be level-triggered
Rafael J. Wysocki [Fri, 12 Aug 2016 20:53:58 +0000 (22:53 +0200)]
Merge branches 'pm-sleep' and 'pm-cpufreq'
* pm-sleep:
PM / hibernate: Restore processor state before using per-CPU variables
x86/power/64: Always create temporary identity mapping correctly
* pm-cpufreq:
cpufreq: powernv: Fix crash in gpstate_timer_handler()
Linus Torvalds [Fri, 12 Aug 2016 20:51:52 +0000 (13:51 -0700)]
Merge branch 'sched-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:
"Misc fixes: cputime fixes, two deadline scheduler fixes and a cgroups
scheduling fix"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/cputime: Fix omitted ticks passed in parameter
sched/cputime: Fix steal time accounting
sched/deadline: Fix lock pinning warning during CPU hotplug
sched/cputime: Mitigate performance regression in times()/clock_gettime()
sched/fair: Fix typo in sync_throttle()
sched/deadline: Fix wrap-around in DL heap
Thomas Garnier [Thu, 11 Aug 2016 21:49:29 +0000 (14:49 -0700)]
PM / hibernate: Restore processor state before using per-CPU variables
Restore the processor state before calling any other functions to
ensure per-CPU variables can be used with KASLR memory randomization.
Tracing functions use per-CPU variables (GS based on x86) and one was
called just before restoring the processor state fully. It resulted
in a double fault when both the tracing & the exception handler
functions tried to use a per-CPU variable.
Fixes: bb3632c6101b (PM / sleep: trace events for suspend/resume)
Reported-and-tested-by: Borislav Petkov <bp@suse.de>
Reported-by: Jiri Kosina <jikos@kernel.org>
Tested-by: Rafael J. Wysocki <rafael@kernel.org>
Tested-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Thomas Garnier <thgarnie@google.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Linus Torvalds [Fri, 12 Aug 2016 20:21:18 +0000 (13:21 -0700)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
"Mostly tooling fixes, plus two uncore-PMU fixes, an uprobes fix, a
perf-cgroups fix and an AUX events fix"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/intel/uncore: Add enable_box for client MSR uncore
perf/x86/intel/uncore: Fix uncore num_counters
uprobes/x86: Fix RIP-relative handling of EVEX-encoded instructions
perf/core: Set cgroup in CPU contexts for new cgroup events
perf/core: Fix sideband list-iteration vs. event ordering NULL pointer deference crash
perf probe ppc64le: Fix probe location when using DWARF
perf probe: Add function to post process kernel trace events
tools: Sync cpufeatures headers with the kernel
toops: Sync tools/include/uapi/linux/bpf.h with the kernel
tools: Sync cpufeatures.h and vmx.h with the kernel
perf probe: Support signedness casting
perf stat: Avoid skew when reading events
perf probe: Fix module name matching
perf probe: Adjust map->reloc offset when finding kernel symbol from map
perf hists: Trim libtraceevent trace_seq buffers
perf script: Add 'bpf-output' field to usage message
Jeff Layton [Thu, 11 Aug 2016 14:37:39 +0000 (10:37 -0400)]
nfsd: don't return an unhashed lock stateid after taking mutex
nfsd4_lock will take the st_mutex before working with the stateid it
gets, but between the time when we drop the cl_lock and take the mutex,
the stateid could become unhashed (a'la FREE_STATEID). If that happens
the lock stateid returned to the client will be forgotten.
Fix this by first moving the st_mutex acquisition into
lookup_or_create_lock_state. Then, have it check to see if the lock
stateid is still hashed after taking the mutex. If it's not, then put
the stateid and try the find/create again.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Tested-by: Alexey Kodanev <alexey.kodanev@oracle.com>
Cc: stable@vger.kernel.org # feb9dad5 nfsd: Always lock state exclusively.
Cc: stable@vger.kernel.org
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Linus Torvalds [Fri, 12 Aug 2016 19:46:37 +0000 (12:46 -0700)]
Merge branch 'locking-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull locking fixes from Ingo Molnar:
"Misc fixes: lockstat fix, futex fix on !MMU systems, big endian fix
for qrwlocks and a race fix for pvqspinlocks"
* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
locking/pvqspinlock: Fix a bug in qstat_read()
locking/pvqspinlock: Fix double hash race
locking/qrwlock: Fix write unlock bug on big endian systems
futex: Assume all mappings are private on !MMU systems
Linus Torvalds [Fri, 12 Aug 2016 19:41:51 +0000 (12:41 -0700)]
Merge branch 'irq-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull irq fix from Ingo Molnar:
"A fix for an MSI regression"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
genirq/msi: Make sure PCI MSIs are activated early
Linus Torvalds [Fri, 12 Aug 2016 19:39:02 +0000 (12:39 -0700)]
Merge branch 'efi-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull EFI fixes from Ingo Molnar:
"A fix for EFI capsules and an SGI UV platform fix"
* 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi/capsule: Allocate whole capsule into virtual memory
x86/platform/uv: Skip UV runtime services mapping in the efi_runtime_disabled case
Linus Torvalds [Fri, 12 Aug 2016 19:32:24 +0000 (12:32 -0700)]
Merge tag 'nfs-for-4.8-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client bugfixes from Trond Myklebust:
"Highlights include:
- Stable patch from Olga to fix RPCSEC_GSS upcalls when the same user
needs multiple different security services (e.g. krb5i and krb5p).
- Stable patch to fix a regression introduced by the use of
SO_REUSEPORT, and that prevented the use of multiple different NFS
versions to the same server.
- TCP socket reconnection timer fixes.
- Patch from Neil to disable the use of IPv6 temporary addresses"
* tag 'nfs-for-4.8-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
NFSv4: Cap the transport reconnection timer at 1/2 lease period
NFSv4: Cleanup the setting of the nfs4 lease period
SUNRPC: Limit the reconnect backoff timer to the max RPC message timeout
SUNRPC: Fix reconnection timeouts
NFSv4.2: LAYOUTSTATS may return NFS4ERR_ADMIN/DELEG_REVOKED
SUNRPC: disable the use of IPv6 temporary addresses.
SUNRPC: allow for upcalls for same uid but different gss service
SUNRPC: Fix up socket autodisconnect
SUNRPC: Handle EADDRNOTAVAIL on connection failures
Linus Torvalds [Fri, 12 Aug 2016 19:28:23 +0000 (12:28 -0700)]
Merge branch 'libnvdimm-fixes' of git://git./linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fixes from Dan Williams:
- Fix for the nd_blk (NVDIMM Block Window Aperture) driver.
A spec clarification requires the driver to mask off reserved bits in
status register. This is tagged for -stable back to the v4.2 kernel.
- Fix for a kernel crash in the nvdimm unit tests when module loading
is interrupted with SIGTERM. Tagged for -stable since validation
efforts external to Intel use the unit tests for qualifying
backports.
- Add a new 'size' sysfs attribute for the BTT (NVDIMM Block
Translation Table) driver to make it symmetric with the other
namespace personality drivers (PFN and DAX) that provide a size
attribute for indicating how much namespace capacity is lost to
metadata.
The BTT change arrived at the start of the merge window and has
appeared in a -next release. It can technically wait for 4.9, but it
is small, fixes asymmetry in the libnvdimm-sysfs interface, and
something I would have squeezed into the v4.8 pull request had it
arrived a few days earlier.
* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
tools/testing/nvdimm: fix SIGTERM vs hotplug crash
nvdimm, btt: add a size attribute for BTTs
libnvdimm, nd_blk: mask off reserved status bits
Linus Torvalds [Fri, 12 Aug 2016 19:26:59 +0000 (12:26 -0700)]
Merge tag 'sound-4.8-rc2' of git://git./linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A regression fix of HD-audio runtime PM and two USB quirks"
* tag 'sound-4.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - Manage power well properly for resume
ALSA: usb-audio: Add quirk for ELP HD USB Camera
ALSA: usb-audio: Add a sample rate quirk for Creative Live! Cam Socialize HD (VF0610)
Linus Torvalds [Fri, 12 Aug 2016 19:09:44 +0000 (12:09 -0700)]
Merge tag 'powerpc-4.8-3' of git://git./linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Some powerpc fixes for 4.8:
Misc:
- powerpc/vdso: Fix build rules to rebuild vdsos correctly from Nicholas Piggin
- powerpc/ptrace: Fix coredump since ptrace TM changes from Cyril Bur
- powerpc/32: Fix csum_partial_copy_generic() from Christophe Leroy
- cxl: Set psl_fir_cntl to production environment value from Frederic Barrat
- powerpc/eeh: Switch to conventional PCI address output in EEH log from Guilherme G. Piccoli
- cxl: Use fixed width predefined types in data structure. from Philippe Bergheaud
- powerpc/vdso: Add missing include file from Guenter Roeck
- powerpc: Fix unused function warning 'lmb_to_memblock' from Alastair D'Silva
- powerpc/powernv/ioda: Fix TCE invalidate to work in real mode again from Alexey Kardashevskiy
- powerpc/cell: Add missing error code in spufs_mkgang() from Dan Carpenter
- crypto: crc32c-vpmsum - Convert to CPU feature based module autoloading from Anton Blanchard
- powerpc/pasemi: Fix coherent_dma_mask for dma engine from Darren Stevens
Benjamin Herrenschmidt:
- powerpc/32: Fix crash during static key init
- powerpc: Update obsolete comment in setup_32.c about early_init()
- powerpc: Print the kernel load address at the end of prom_init()
- powerpc/pnv/pci: Fix incorrect PE reservation attempt on some 64-bit BARs
- powerpc/xics: Properly set Edge/Level type and enable resend
Mahesh Salgaonkar:
- powerpc/book3s: Fix MCE console messages for unrecoverable MCE.
- powerpc/powernv: Fix MCE handler to avoid trashing CR0/CR1 registers.
- powerpc/powernv: Move IDLE_STATE_ENTER_SEQ macro to cpuidle.h
- powerpc/powernv: Load correct TOC pointer while waking up from winkle.
Andrew Donnellan:
- cxl: Fix sparse warnings
- cxl: Fix NULL dereference in cxl_context_init() on PowerVM guests
Michael Ellerman:
- selftests/powerpc: Specify we expect to build with std=gnu99
- powerpc/Makefile: Use cflags-y/aflags-y for setting endian options
- powerpc/pci: Fix endian bug in fixed PHB numbering"
* tag 'powerpc-4.8-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (26 commits)
selftests/powerpc: Specify we expect to build with std=gnu99
powerpc/vdso: Fix build rules to rebuild vdsos correctly
powerpc/Makefile: Use cflags-y/aflags-y for setting endian options
powerpc/32: Fix crash during static key init
powerpc: Update obsolete comment in setup_32.c about early_init()
powerpc: Print the kernel load address at the end of prom_init()
powerpc/ptrace: Fix coredump since ptrace TM changes
powerpc/32: Fix csum_partial_copy_generic()
cxl: Set psl_fir_cntl to production environment value
powerpc/pnv/pci: Fix incorrect PE reservation attempt on some 64-bit BARs
powerpc/book3s: Fix MCE console messages for unrecoverable MCE.
powerpc/pci: Fix endian bug in fixed PHB numbering
powerpc/eeh: Switch to conventional PCI address output in EEH log
cxl: Fix sparse warnings
cxl: Fix NULL dereference in cxl_context_init() on PowerVM guests
cxl: Use fixed width predefined types in data structure.
powerpc/vdso: Add missing include file
powerpc: Fix unused function warning 'lmb_to_memblock'
powerpc/powernv: Fix MCE handler to avoid trashing CR0/CR1 registers.
powerpc/powernv: Move IDLE_STATE_ENTER_SEQ macro to cpuidle.h
...
Masahiro Yamada [Wed, 8 Jun 2016 12:26:23 +0000 (21:26 +0900)]
arm64: defconfig: enable CONFIG_LOCALVERSION_AUTO
When CONFIG_LOCALVERSION_AUTO is disabled, the version string is
just a tag name (or with a '+' appended if HEAD is not a tagged
commit).
During the development (and especially when git-bisecting), longer
version string would be helpful to identify the commit we are running.
This is a default y option, so drop the unset to enable it.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Riku Voipio [Wed, 15 Jun 2016 08:27:59 +0000 (11:27 +0300)]
arm64: defconfig: add options for virtualization and containers
Enable options commonly needed by popular virtualization
and container applications. Use modules when possible to
avoid too much overhead for users not interested.
- add namespace and cgroup options needed
- add seccomp - optional, but enhances Qemu etc
- bridge, nat, veth, macvtap and multicast for routing
guests and containers
- btfrs and overlayfs modules for container COW backends
- while near it, make fuse a module instead of built-in.
Generated with make saveconfig and dropping unrelated spurious
change hunks while commiting. bloat-o-meter old-vmlinux vmlinux:
add/remove: 905/390 grow/shrink: 767/229 up/down: 183513/-94861 (88652)
....
Total: Before=
10515408, After=
10604060, chg +0.84%
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Mark Rutland [Thu, 11 Aug 2016 13:11:06 +0000 (14:11 +0100)]
arm64: hibernate: handle allocation failures
In create_safe_exec_page(), we create a copy of the hibernate exit text,
along with some page tables to map this via TTBR0. We then install the
new tables in TTBR0.
In swsusp_arch_resume() we call create_safe_exec_page() before trying a
number of operations which may fail (e.g. copying the linear map page
tables). If these fail, we bail out of swsusp_arch_resume() and return
an error code, but leave TTBR0 as-is. Subsequently, the core hibernate
code will call free_basic_memory_bitmaps(), which will free all of the
memory allocations we made, including the page tables installed in
TTBR0.
Thus, we may have TTBR0 pointing at dangling freed memory for some
period of time. If the hibernate attempt was triggered by a user
requesting a hibernate test via the reboot syscall, we may return to
userspace with the clobbered TTBR0 value.
Avoid these issues by reorganising swsusp_arch_resume() such that we
have no failure paths after create_safe_exec_page(). We also add a check
that the zero page allocation succeeded, matching what we have for other
allocations.
Fixes: 82869ac57b5d ("arm64: kernel: Add support for hibernate/suspend-to-disk")
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: James Morse <james.morse@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: <stable@vger.kernel.org> # 4.7+
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>