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2018-03-19Merge branch 'for-4.16-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu Pull percpu fixes from Tejun Heo: "Late percpu pull request for v4.16-rc6. - percpu allocator pool replenishing no longer triggers OOM or warning messages. Also, the alloc interface now understands __GFP_NORETRY and __GFP_NOWARN. This is to allow avoiding OOMs from userland triggered actions like bpf map creation. Also added cond_resched() in alloc loop. - perpcu allocation now can be interrupted by kill sigs to avoid deadlocking OOM killer. - Added Dennis Zhou as a co-maintainer. He has rewritten the area map allocator, understands most of the code base and has been responsive for all bug reports" * 'for-4.16-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: percpu_ref: Update doc to dissuade users from depending on internal RCU grace periods mm: Allow to kill tasks doing pcpu_alloc() and waiting for pcpu_balance_workfn() percpu: include linux/sched.h for cond_resched() percpu: add a schedule point in pcpu_balance_workfn() percpu: allow select gfp to be passed to underlying allocators percpu: add __GFP_NORETRY semantics to the percpu balancing path percpu: match chunk allocator declarations with definitions percpu: add Dennis Zhou as a percpu co-maintainer
2018-03-19Merge branch 'for-4.16-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata Pull libata fixes from Tejun Heo: "I sat on them too long and it's quite a few this late, but nothing has a wide blast area. The changes are... - Fix corner cases in SG command handling. - Recent introduction of default powersaving mode config option exposed several devices with broken powersaving behaviors. A number of patches to update the blacklist accordingly. - Fix a kernel panic on SAS hotplug. - Other misc and device specific updates" * 'for-4.16-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: libata: Modify quirks for MX100 to limit NCQ_TRIM quirk to MU01 version libata: Make Crucial BX100 500GB LPM quirk apply to all firmware versions libata: Apply NOLPM quirk to Crucial M500 480 and 960GB SSDs libata: Enable queued TRIM for Samsung SSD 860 PCI: Add function 1 DMA alias quirk for Highpoint RocketRAID 644L ahci: Add PCI-id for the Highpoint Rocketraid 644L card ata: do not schedule hot plug if it is a sas host libata: disable LPM for Crucial BX100 SSD 500GB drive libata: Apply NOLPM quirk to Crucial MX100 512GB SSDs libata: update documentation for sysfs interfaces ata: sata_rcar: Remove unused variable in sata_rcar_init_controller() libata: transport: cleanup documentation of sysfs interface sata_rcar: Reset SATA PHY when Salvator-X board resumes libata: don't try to pass through NCQ commands to non-NCQ devices libata: remove WARN() for DMA or PIO command without data libata: fix length validation of ATAPI-relayed SCSI commands ata: libahci: fix comment indentation ahci: Add check for device presence (PCIe hot unplug) in ahci_stop_engine() libata: Fix compile warning with ATA_DEBUG enabled
2018-03-19drm/sun4i: backend: Support YUV planesMaxime Ripard
Now that we have the guarantee that we will have only a single YUV plane, actually support them. The way it works is not really straightforward, since we first need to enable the YUV mode in the plane that we want to setup, and then we have a few registers to setup the YUV buffer and parameters. We also need to setup the color correction to actually have something displayed. Reviewed-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/66088c1398bd3189123f28a89a7ccc669fe9f296.1519931807.git-series.maxime.ripard@bootlin.com
2018-03-19nfsd: remove blocked locks on client teardownJeff Layton
We had some reports of panics in nfsd4_lm_notify, and that showed a nfs4_lockowner that had outlived its so_client. Ensure that we walk any leftover lockowners after tearing down all of the stateids, and remove any blocked locks that they hold. With this change, we also don't need to walk the nbl_lru on nfsd_net shutdown, as that will happen naturally when we tear down the clients. Fixes: 76d348fadff5 (nfsd: have nfsd4_lock use blocking locks for v4.1+ locks) Reported-by: Frank Sorenson <fsorenso@redhat.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Cc: stable@vger.kernel.org # 4.9 Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2018-03-19RDMA/verbs: Remove restrack entry from XRCD structureLeon Romanovsky
XRCD object is not implemented in the restrack, so lets remove it. Fixes: 02d8883f520e ("RDMA/restrack: Add general infrastructure to track RDMA resources") Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-03-19RDMA/ucma: Fix use-after-free access in ucma_closeLeon Romanovsky
The error in ucma_create_id() left ctx in the list of contexts belong to ucma file descriptor. The attempt to close this file descriptor causes to use-after-free accesses while iterating over such list. Fixes: 75216638572f ("RDMA/cma: Export rdma cm interface to userspace") Reported-by: <syzbot+dcfd344365a56fbebd0f@syzkaller.appspotmail.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Reviewed-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-03-19drm/amd/pp: Remove unneeded void * casts for Vega10Rex Zhu
Removes unneeded void * casts for the following pointers: hwmgr->backend hwmgr->smu_backend Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Evan Quan <evan.quan@amd.com> Signed-off-by: Rex Zhu <Rex.Zhu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-19drm/amd/pp: Delete get_xclk function in powerplay (v2)Rex Zhu
use asic's callback function get_xclk in amdgpu v2: squash in removal of leftover debug info (drm/amd/pp: Delete debug info in smu7_hwmgr.c) (Rex) Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Evan Quan <evan.quan@amd.com> Signed-off-by: Rex Zhu <Rex.Zhu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-19drm/amd/pp: Clean up header file for Vega10Rex Zhu
Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Evan Quan <evan.quan@amd.com> Signed-off-by: Rex Zhu <Rex.Zhu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-19drm/amd/pp: Move functions to smu backend table for vega10Rex Zhu
Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Evan Quan <evan.quan@amd.com> Signed-off-by: Rex Zhu <Rex.Zhu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-19drm/amd/pp: Mark bunches of functins in vega10_smumgr.c staticRex Zhu
Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Evan Quan <evan.quan@amd.com> Signed-off-by: Rex Zhu <Rex.Zhu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-19drm/amd/pp: Remove dead functions in vega10_smumgr.cRex Zhu
use smc_table_manager function to copy/save tables to/from smu. Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Evan Quan <evan.quan@amd.com> Signed-off-by: Rex Zhu <Rex.Zhu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-19drm/amdgpu: Delete dead code when early initRex Zhu
Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Evan Quan <evan.quan@amd.com> Signed-off-by: Rex Zhu <Rex.Zhu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-19percpu_ref: Update doc to dissuade users from depending on internal RCU ↵Tejun Heo
grace periods percpu_ref internally uses sched-RCU to implement the percpu -> atomic mode switching and the documentation suggested that this could be depended upon. This doesn't seem like a good idea. * percpu_ref uses sched-RCU which has different grace periods regular RCU. Users may combine percpu_ref with regular RCU usage and incorrectly believe that regular RCU grace periods are performed by percpu_ref. This can lead to, for example, use-after-free due to premature freeing. * percpu_ref has a grace period when switching from percpu to atomic mode. It doesn't have one between the last put and release. This distinction is subtle and can lead to surprising bugs. * percpu_ref allows starting in and switching to atomic mode manually for debugging and other purposes. This means that there may not be any grace periods from kill to release. This patch makes it clear that the grace periods are percpu_ref's internal implementation detail and can't be depended upon by the users. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Kent Overstreet <kent.overstreet@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Tejun Heo <tj@kernel.org>
2018-03-19mm: Allow to kill tasks doing pcpu_alloc() and waiting for pcpu_balance_workfn()Kirill Tkhai
In case of memory deficit and low percpu memory pages, pcpu_balance_workfn() takes pcpu_alloc_mutex for a long time (as it makes memory allocations itself and waits for memory reclaim). If tasks doing pcpu_alloc() are choosen by OOM killer, they can't exit, because they are waiting for the mutex. The patch makes pcpu_alloc() to care about killing signal and use mutex_lock_killable(), when it's allowed by GFP flags. This guarantees, a task does not miss SIGKILL from OOM killer. Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2018-03-19percpu: include linux/sched.h for cond_resched()Tejun Heo
microblaze build broke due to missing declaration of the cond_resched() invocation added recently. Let's include linux/sched.h explicitly. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: kbuild test robot <fengguang.wu@intel.com>
2018-03-19clk: bcm2835: Protect sections updating shared registersBoris Brezillon
CM_PLLx and A2W_XOSC_CTRL registers are accessed by different clock handlers and must be accessed with ->regs_lock held. Update the sections where this protection is missing. Fixes: 41691b8862e2 ("clk: bcm2835: Add support for programming the audio domain clocks") Cc: <stable@vger.kernel.org> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-03-19clk: bcm2835: Fix ana->maskX definitionsBoris Brezillon
ana->maskX values are already '~'-ed in bcm2835_pll_set_rate(). Remove the '~' in the definition to fix ANA setup. Note that this commit fixes a long standing bug preventing one from using an HDMI display if it's plugged after the FW has booted Linux. This is because PLLH is used by the HDMI encoder to generate the pixel clock. Fixes: 41691b8862e2 ("clk: bcm2835: Add support for programming the audio domain clocks") Cc: <stable@vger.kernel.org> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-03-19drm/amd/display: fix dereferencing possible ERR_PTR()Shirish S
This patch fixes static checker warning caused by "36cc549d5986: "drm/amd/display: disable CRTCs with NULL FB on their primary plane (V2)" Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Shirish S <shirish.s@amd.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-19drm/amd/display: Refine disable VGAClark Zheng
bad case won't follow normal sense, it will not enable vga1 as usual, but vga2,3,4 is on. Signed-off-by: Clark Zheng <clark.zheng@amd.com> Reviewed-by: Tony Cheng <tony.cheng@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-19ALSA: usb-audio: Fix parsing descriptor of UAC2 processing unitKirill Marinushkin
Currently, the offsets in the UAC2 processing unit descriptor are calculated incorrectly. It causes an issue when connecting the device which provides such a feature: ~~~~ [84126.724420] usb 1-1.3.1: invalid Processing Unit descriptor (id 18) ~~~~ After this patch is applied, the UAC2 processing unit inits w/o this error. Fixes: 23caaf19b11e ("ALSA: usb-mixer: Add support for Audio Class v2.0") Signed-off-by: Kirill Marinushkin <k.marinushkin@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-03-19libata: Modify quirks for MX100 to limit NCQ_TRIM quirk to MU01 versionHans de Goede
When commit 9c7be59fc519af ("libata: Apply NOLPM quirk to Crucial MX100 512GB SSDs") was added it inherited the ATA_HORKAGE_NO_NCQ_TRIM quirk from the existing "Crucial_CT*MX100*" entry, but that entry sets model_rev to "MU01", where as the entry adding the NOLPM quirk sets it to NULL. This means that after this commit we no apply the NO_NCQ_TRIM quirk to all "Crucial_CT512MX100*" SSDs even if they have the fixed "MU02" firmware. This commit splits the "Crucial_CT512MX100*" quirk into 2 quirks, one for the "MU01" firmware and one for all other firmware versions, so that we once again only apply the NO_NCQ_TRIM quirk to the "MU01" firmware version. Fixes: 9c7be59fc519af ("libata: Apply NOLPM quirk to ... MX100 512GB SSDs") Cc: stable@vger.kernel.org Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2018-03-19libata: Make Crucial BX100 500GB LPM quirk apply to all firmware versionsHans de Goede
Commit b17e5729a630 ("libata: disable LPM for Crucial BX100 SSD 500GB drive"), introduced a ATA_HORKAGE_NOLPM quirk for Crucial BX100 500GB SSDs but limited this to the MU02 firmware version, according to: http://www.crucial.com/usa/en/support-ssd-firmware MU02 is the last version, so there are no newer possibly fixed versions and if the MU02 version has broken LPM then the MU01 almost certainly also has broken LPM, so this commit changes the quirk to apply to all firmware versions. Fixes: b17e5729a630 ("libata: disable LPM for Crucial BX100 SSD 500GB...") Cc: stable@vger.kernel.org Cc: Kai-Heng Feng <kai.heng.feng@canonical.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2018-03-19libata: Apply NOLPM quirk to Crucial M500 480 and 960GB SSDsHans de Goede
There have been reports of the Crucial M500 480GB model not working with LPM set to min_power / med_power_with_dipm level. It has not been tested with medium_power, but that typically has no measurable power-savings. Note the reporters Crucial_CT480M500SSD3 has a firmware version of MU03 and there is a MU05 update available, but that update does not mention any LPM fixes in its changelog, so the quirk matches all firmware versions. In my experience the LPM problems with (older) Crucial SSDs seem to be limited to higher capacity versions of the SSDs (different firmware?), so this commit adds a NOLPM quirk for the 480 and 960GB versions of the M500, to avoid LPM causing issues with these SSDs. Cc: stable@vger.kernel.org Reported-and-tested-by: Martin Steigerwald <martin@lichtvoll.de> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2018-03-19drm/sun4i: backend: Check that we only have a single YUV planeMaxime Ripard
Just like for the frontend, a single plane can use a YUV format. Make sure we have that constraint covered in our atomic_check. This is preliminary to the actual YUV support to make sure we don't end up in an impossible to support situation. Reviewed-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/2f8586493d9139b12efe7e94f65e9a149f818e0e.1519931807.git-series.maxime.ripard@bootlin.com
2018-03-19staging: ncpfs: memory corruption in ncp_read_kernel()Dan Carpenter
If the server is malicious then *bytes_read could be larger than the size of the "target" buffer. It would lead to memory corruption when we do the memcpy(). Reported-by: Dr Silvio Cesare of InfoSect <Silvio Cesare <silvio.cesare@gmail.com> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-19Merge tag 'iio-fixes-for-4.16b' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus Jonathan writes: Second set of IIO fixes for the 4.16 cycle. A slightly fiddly revert then fix pair in here as the bug lead to an unused local variable that was then removed without us noticing the bug. The revert should only be needed on 4.16 - the fix goes back futher. * ccs811 - Fix the transition from 'boot' to 'application' mode. Fixes the case where the power is not cut between boot cycles. * meson-saradc - Fix missing mutex_unlock in an error path. * sd-modulator - Fix bindings doc to have the right value of io-channel-cells to reflect that this device type only ever outputs one channel. * st-accel - Revert drop of redundant pointer patch. - Use the now available pointer to avoid overwriting the platform data pointer and causing trouble on reprobing the driver. * st-pressure - Use local copy of the platform data pointer to avoid overwriting the one associated with the device, which would cause issues on reprobing the driver. * stm32-dfsdm - Use the right regmap_cfg for the type of device. - Correct the ID passed to stop channel to be the channel one. - Correct which clock is used to allow for the 'audio' clock. - Fix allocation of channels when more than one is enabled.
2018-03-19drm/sun4i: Add driver support for A80 display pipelineChen-Yu Tsai
This patch adds support for the compatible strings of the A80 display pipeline. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180315114136.24747-6-wens@csie.org
2018-03-19drm/sun4i: Add compatible strings for the A80 display pipelineChen-Yu Tsai
This patch adds compatible strings for the remaining documented components of the Allwinner A80 display pipeline. Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180315114136.24747-5-wens@csie.org
2018-03-19drm/sun4i: Add support for A80 TCONsChen-Yu Tsai
The Allwinner A80 SoC has 2 documented TCONs. The display pipeline diagram from the user manual shows a third TCON, but it's missing an interrupt line, and its registers are not explained either. It's also not used in Allwinner's vendor BSP. The first TCON only has channel 0, for LCD panel output. The TCON hardware setup is peculiar in that the eDP reset must also be deasserted to allow access to the TCON. How the eDP module is wired in the SoC itself is never explained. The second TCON only has channel 1, and its output is connected to the HDMI encoder block. This patch adds a "needs_edp_reset" field to the tcon quirks structure, and adds quirks and compatible strings for the 2 documented TCONs. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180315114136.24747-4-wens@csie.org
2018-03-19drm/sun4i: Add DT binding for Detail Enhancement Unit in Allwinner A80 SoCChen-Yu Tsai
The display pipeline on the A80 SoC has what is called the Detail Enhancement Unit, or DEU for short, block in between the display frontend and backend. This unit can sharpen images in both luma and chroma channels. It seems to also do colorspace conversion. This patch adds the device tree binding for this hardware block. Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180315114136.24747-3-wens@csie.org
2018-03-19drm/sun4i: Add compatible strings for A80 TCONsChen-Yu Tsai
The A80 has 2 or 3 TCONs. The documentation and vendor kernel are very vague about the third TCON, to the point that it might not exist. In the documentation, the first TCON is missing channel 1, and the second is missing channel 0. However the vendor kernel seems to be able to use them regardless. Here we model them like the old TCONs. An oddity is that TCON0 requires the reset control for the eDP block to be deasserted, for any register access to stick. This patch adds compatible strings for TCON0 and TCON1, with TCON0 requiring an extra "edp" reset control. Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180315114136.24747-2-wens@csie.org
2018-03-19drm: Reduce object size of DRM_DEV_<LEVEL> usesJoe Perches
These macros are similar to the DRM_<LEVEL> with the addition of a struct device * to the arguments. Convert the single drm_dev_printk function into 2 separate functions. drm_dev_printk with a KERN_<LEVEL> * for generic use and drm_dev_dbg for conditional masked use. Remove the __func__ argument and use __builtin_return_address(0) to be similar to the DRM_<LEVEL> macros uses. Convert the DRM_DEV_<LEVEL> macros to remove now unnecessary arguments and use a consistent style. These macros are rarely used in the generic gpu/drm code so the code size does not change much for a defconfig, but when more drivers are enabled, there is ~4k savings. Many of these macros have no existing use at all. $ size -t drivers/gpu/drm/built-in.a | tail -1 1877530 44651 995 1923176 1d5868 (TOTALS) $ size -t drivers/gpu/drm/built-in.a | tail -1 1877527 44651 995 1923173 1d5865 (TOTALS) $ size -t drivers/gpu/drm/built-in.a | tail -1 17166750 2689238 108352 19964340 130a1b4 (TOTALS) $ size -t drivers/gpu/drm/built-in.a | tail -1 17168888 2691734 108352 19968974 130b3ce (TOTALS) Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/e5c164946e15375ac71b69b75f296efdf0b76e6d.1521233717.git.joe@perches.com
2018-03-19drm/doc: Put all driver docs into a separate chapterDaniel Vetter
We have quite a few driver docs now, which is great, but having them all in the top-level gpu documentation chapter makes it harder to spot the core/shared bits. Stuff them into a separate chapter and ecourage people to add even more! Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180316075926.13584-1-daniel.vetter@ffwll.ch
2018-03-19drm: dma_bufs: Fixed checkpatch issuesPaul McQuade
Fix a couple of checkpatch issues Signed-off-by: Paul McQuade <paulmcquad@gmail.com> [seanpaul squashed series of 4 into one patch, and changed commit msg] Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/20180319005225.1545-1-paulmcquad@gmail.com
2018-03-19drm: remove drm_mode_object_{un/reference} aliasesHaneen Mohammed
This patch remove the compatibility aliases drm_mode_object_{reference/unreference} of drm_mode_object_{get/put} since all callers have been converted to the prefered _{get/put}. Remove the helpers from the semantic patch drm-get-put-cocci. Signed-off-by: Haneen Mohammed <hamohammed.sa@gmail.com> Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/20180319055820.GA17502@haneen-VirtualBox
2018-03-19drm/msm: fix building without debugfsArnd Bergmann
The adreno driver stopped building when CONFIG_DEBUGFS is disabled: drivers/gpu/drm/msm/adreno/adreno_device.c: In function 'adreno_load_gpu': drivers/gpu/drm/msm/adreno/adreno_device.c:153:16: error: 'const struct msm_gpu_funcs' has no member named 'debugfs_init' if (gpu->funcs->debugfs_init) { ^~ drivers/gpu/drm/msm/adreno/adreno_device.c:154:13: error: 'const struct msm_gpu_funcs' has no member named 'debugfs_init' gpu->funcs->debugfs_init(gpu, dev->primary); ^~ This adds an #ifdef around the code that references the hidden pointer. Fixes: 331dc0bc195b ("drm/msm: add a5xx specific debugfs") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rob Clark <robdclark@gmail.com>
2018-03-19drm/msm/mdp5: don't pre-reserve LM's if no dual-dsiRob Clark
If there is only a single DSI interface, don't reserve the first two layer-mixers for the dual-DSI use-case. This was causing problems for WB, not being able to assign a LM, on 8x16, which has only two LM's and a single DSI. Signed-off-by: Rob Clark <robdclark@gmail.com>
2018-03-19drm/msm/mdp5: add missing LM flush bitsRob Clark
For some reason, layer-mixer 3 and 4 were missing. LM3 is used for writeback on 8x16. Signed-off-by: Rob Clark <robdclark@gmail.com>
2018-03-19drm/msm/mdp5: print a bit more of the atomic stateRob Clark
Signed-off-by: Rob Clark <robdclark@gmail.com>
2018-03-19drm/msm/mdp5: rework CTL START signal handlingRob Clark
For DSI cmd-mode and writeback, we need to write the CTL's START register to kick things off, but we only want to do that once both the encoder and the crtc have a chance to write their corresponding flush bits. The difficulty is that when there is a full modeset (ie. encoder state has changed) we want to defer the start until encoder->enable(). But if only plane's have changed, we want to do this from crtc->commit(). The start_mask was a previous attempt to handle this, but it didn't really do the right thing since atomic conversion. Instead track in the crtc state that the start should be deferred, set to try from encoder's (or in future writeback's) atomic_check(). This way the state is part of the atomic state, and rollback can work properly if an atomic test fails. Signed-off-by: Rob Clark <robdclark@gmail.com>
2018-03-19drm/msm: Trigger fence completion from GPUBjorn Andersson
Interrupt commands causes the CP to trigger an interrupt as the command is processed, regardless of the GPU being done processing previous commands. This is seen by the interrupt being delivered before the fence is written on 8974 and is likely the cause of the additional CP_WAIT_FOR_IDLE workaround found for a306, which would cause the CP to wait for the GPU to go idle before triggering the interrupt. Instead we can set the (undocumented) BIT(31) of the CACHE_FLUSH_TS which will cause a special CACHE_FLUSH_TS interrupt to be triggered from the GPU as the write event is processed. Add CACHE_FLUSH_TS to the IRQ masks of A3xx and A4xx and remove the workaround for A306. Suggested-by: Jordan Crouse <jcrouse@codeaurora.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Rob Clark <robdclark@gmail.com>
2018-03-19drm/msm/dsi: fix direct caller of msm_gem_free_object()Rob Clark
This should be using drm_gem_object_put(). Also since this is done only in driver unload path, we don't need to synchronize setting tx_gem_obj to NULL, so juse use the _unlocked() variant. Signed-off-by: Rob Clark <robdclark@gmail.com>
2018-03-19drm/msm: strip out msm_fence_cbRob Clark
Remnants of pre-dma_fence fencing which got left behind by mistake. Signed-off-by: Rob Clark <robdclark@gmail.com>
2018-03-19drm/msm: rename mdp->dispRob Clark
Since new display controller is called "dpu" instead of "mdp". Lets make the name of the toplevel directory for the display controllers a bit more generic. Signed-off-by: Rob Clark <robdclark@gmail.com> Reviewed-by: Sean Paul <seanpaul@chromium.org>
2018-03-19drm/msm/dsi: Fix potential NULL pointer dereference in msm_dsi_modeset_initGustavo A. R. Silva
_dev_ is being dereferenced before it is null checked, hence there is a potential null pointer dereference. Fix this by moving the pointer dereference after _dev_ has been null checked. Fixes: d4e7f38d70ef ("drm/msm/dsi: check msm_dsi and dsi pointers before use") Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com> Signed-off-by: Rob Clark <robdclark@gmail.com>
2018-03-19drm/msm/adreno/a5xx_debugfs: fix potential NULL pointer dereferenceGustavo A. R. Silva
_minor_ is being dereferenced before it is null checked, hence there is a potential null pointer dereference. Fix this by moving the pointer dereference after _minor_ has been null checked. Fixes: 024ad8df763f ("drm/msm: add a5xx specific debugfs") Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com> Signed-off-by: Rob Clark <robdclark@gmail.com>
2018-03-19can: cc770: Fix use after free in cc770_tx_interrupt()Andri Yngvason
This fixes use after free introduced by the last cc770 patch. Signed-off-by: Andri Yngvason <andri.yngvason@marel.com> Fixes: 746201235b3f ("can: cc770: Fix queue stall & dropped RTR reply") Cc: linux-stable <stable@vger.kernel.org> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2018-03-19drm/i915/gvt: force to set all context control bits from guestZhenyu Wang
Our shadow context content is from guest but with masked control reg like CTX_CONTEXT_CONTROL, we need to make sure all settings from guest would be set when this context is on hw, this trys to force mask enable bits for all to ensure every bits setting would be effective on hw. One regression found related to once inhibit bit is set, gpu engine are working on inhibit state until MI_LOAD_REG_IMM command or context image clear inhibit bit with mask bit set to 1, and val bit set to 0. In gvt-g currently workload has the highest priority, so gvt-g workload could trigger preempt context easily, preempt context set inhibit bit, then gvt-g workload is scheduled in, but gvt-g workload shadow context image usually doesn't set inhibit mask bit, so gpu is still in inhibit state when gvt workload is running. This caused gpu hang. Suggested-by: Zhang, Xiong <xiong.y.zhang@intel.com> Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com> Reviewed-by: Zhang, Xiong <xiong.y.zhang@intel.com>
2018-03-19mtdchar: fix usage of mtd_ooblayout_ecc()OuYang ZhiZhong
Section was not properly computed. The value of OOB region definition is always ECC section 0 information in the OOB area, but we want to get all the ECC bytes information, so we should call mtd_ooblayout_ecc(mtd, section++, &oobregion) until it returns -ERANGE. Fixes: c2b78452a9db ("mtd: use mtd_ooblayout_xxx() helpers where appropriate") Cc: <stable@vger.kernel.org> Signed-off-by: OuYang ZhiZhong <ouyzz@yealink.com> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
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