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instead of calling __copy_to/from_user(), use copy_to_from_user() to
ensure vaddr range is a valid user address range before accessing them.
Fixes: 8d46c0cca5f4 ("vfio: introduce vfio_dma_rw to read/write a range of IOVAs")
Signed-off-by: Yan Zhao <yan.y.zhao@intel.com>
Reported-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fix from Catalin Marinas:
"Add -fasynchronous-unwind-tables to the vDSO CFLAGS"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: vdso: Add -fasynchronous-unwind-tables to cflags
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On arm64 linux gcc uses -fasynchronous-unwind-tables -funwind-tables
by default since gcc-8, so now the de facto platform ABI is to allow
unwinding from async signal handlers.
However on bare metal targets (aarch64-none-elf), and on old gcc,
async and sync unwind tables are not enabled by default to avoid
runtime memory costs.
This means if linux is built with a baremetal toolchain the vdso.so
may not have unwind tables which breaks the gcc platform ABI guarantee
in userspace.
Add -fasynchronous-unwind-tables explicitly to the vgettimeofday.o
cflags to address the ABI change.
Fixes: 28b1a824a4f4 ("arm64: vdso: Substitute gettimeofday() with C implementation")
Cc: Will Deacon <will@kernel.org>
Reported-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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Pull io_uring fixes from Jens Axboe:
- Fix for statx not grabbing the file table, making AT_EMPTY_PATH fail
- Cover a few cases where async poll can handle retry, eliminating the
need for an async thread
- fallback request busy/free fix (Bijan)
- syzbot reported SQPOLL thread exit fix for non-preempt (Xiaoguang)
- Fix extra put of req for sync_file_range (Pavel)
- Always punt splice async. We'll improve this for 5.8, but wanted to
eliminate the inode mutex lock from the non-blocking path for 5.7
(Pavel)
* tag 'io_uring-5.7-2020-05-01' of git://git.kernel.dk/linux-block:
io_uring: punt splice async because of inode mutex
io_uring: check non-sync defer_list carefully
io_uring: fix extra put in sync_file_range()
io_uring: use cond_resched() in io_ring_ctx_wait_and_kill()
io_uring: use proper references for fallback_req locking
io_uring: only force async punt if poll based retry can't handle it
io_uring: enable poll retry for any file with ->read_iter / ->write_iter
io_uring: statx must grab the file table for valid fd
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Nonblocking do_splice() still may wait for some time on an inode mutex.
Let's play safe and always punt it async.
Reported-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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io_req_defer() do double-checked locking. Use proper helpers for that,
i.e. list_empty_careful().
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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[ 40.179474] refcount_t: underflow; use-after-free.
[ 40.179499] WARNING: CPU: 6 PID: 1848 at lib/refcount.c:28 refcount_warn_saturate+0xae/0xf0
...
[ 40.179612] RIP: 0010:refcount_warn_saturate+0xae/0xf0
[ 40.179617] Code: 28 44 0a 01 01 e8 d7 01 c2 ff 0f 0b 5d c3 80 3d 15 44 0a 01 00 75 91 48 c7 c7 b8 f5 75 be c6 05 05 44 0a 01 01 e8 b7 01 c2 ff <0f> 0b 5d c3 80 3d f3 43 0a 01 00 0f 85 6d ff ff ff 48 c7 c7 10 f6
[ 40.179619] RSP: 0018:ffffb252423ebe18 EFLAGS: 00010286
[ 40.179623] RAX: 0000000000000000 RBX: ffff98d65e929400 RCX: 0000000000000000
[ 40.179625] RDX: 0000000000000001 RSI: 0000000000000086 RDI: 00000000ffffffff
[ 40.179627] RBP: ffffb252423ebe18 R08: 0000000000000001 R09: 000000000000055d
[ 40.179629] R10: 0000000000000c8c R11: 0000000000000001 R12: 0000000000000000
[ 40.179631] R13: ffff98d68c434400 R14: ffff98d6a9cbaa20 R15: ffff98d6a609ccb8
[ 40.179634] FS: 0000000000000000(0000) GS:ffff98d6af580000(0000) knlGS:0000000000000000
[ 40.179636] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 40.179638] CR2: 00000000033e3194 CR3: 000000006480a003 CR4: 00000000003606e0
[ 40.179641] Call Trace:
[ 40.179652] io_put_req+0x36/0x40
[ 40.179657] io_free_work+0x15/0x20
[ 40.179661] io_worker_handle_work+0x2f5/0x480
[ 40.179667] io_wqe_worker+0x2a9/0x360
[ 40.179674] ? _raw_spin_unlock_irqrestore+0x24/0x40
[ 40.179681] kthread+0x12c/0x170
[ 40.179685] ? io_worker_handle_work+0x480/0x480
[ 40.179690] ? kthread_park+0x90/0x90
[ 40.179695] ret_from_fork+0x35/0x40
[ 40.179702] ---[ end trace 85027405f00110aa ]---
Opcode handler must never put submission ref, but that's what
io_sync_file_range_finish() do. use io_steal_work() there.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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While working on to make io_uring sqpoll mode support syscalls that need
struct files_struct, I got cpu soft lockup in io_ring_ctx_wait_and_kill(),
while (ctx->sqo_thread && !wq_has_sleeper(&ctx->sqo_wait))
cpu_relax();
above loop never has an chance to exit, it's because preempt isn't enabled
in the kernel, and the context calling io_ring_ctx_wait_and_kill() and
io_sq_thread() run in the same cpu, if io_sq_thread calls a cond_resched()
yield cpu and another context enters above loop, then io_sq_thread() will
always in runqueue and never exit.
Use cond_resched() can fix this issue.
Reported-by: syzbot+66243bb7126c410cefe6@syzkaller.appspotmail.com
Signed-off-by: Xiaoguang Wang <xiaoguang.wang@linux.alibaba.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Use ctx->fallback_req address for test_and_set_bit_lock() and
clear_bit_unlock().
Signed-off-by: Bijan Mottahedeh <bijan.mottahedeh@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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We do blocking retry from our poll handler, if the file supports polled
notifications. Only mark the request as needing an async worker if we
can't poll for it.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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We can have files like eventfd where it's perfectly fine to do poll
based retry on them, right now io_file_supports_async() doesn't take
that into account.
Pass in data direction and check the f_op instead of just always needing
an async worker.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Clay reports that OP_STATX fails for a test case with a valid fd
and empty path:
-- Test 0: statx:fd 3: SUCCEED, file mode 100755
-- Test 1: statx:path ./uring_statx: SUCCEED, file mode 100755
-- Test 2: io_uring_statx:fd 3: FAIL, errno 9: Bad file descriptor
-- Test 3: io_uring_statx:path ./uring_statx: SUCCEED, file mode 100755
This is due to statx not grabbing the process file table, hence we can't
lookup the fd in async context. If the fd is valid, ensure that we grab
the file table so we can grab the file from async context.
Cc: stable@vger.kernel.org # v5.6
Reported-by: Clay Harris <bugs@claycon.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Pull block fixes from Jens Axboe:
"A few fixes for this release:
- NVMe pull request from Christoph, with a single fix for a double
free in the namespace error handling.
- Kill the bd_openers check in blk_drop_partitions(), fixing a
regression in this merge window (Christoph)"
* tag 'block-5.7-2020-05-01' of git://git.kernel.dk/linux-block:
block: remove the bd_openers checks in blk_drop_partitions
nvme: prevent double free in nvme_alloc_ns() error handling
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When replacing the bd_super check with a bd_openers I followed a logical
conclusion, which turns out to be utterly wrong. When a block device has
bd_super sets it has a mount file system on it (although not every
mounted file system sets bd_super), but that also implies it doesn't even
have partitions to start with.
So instead of trying to come up with a logical check for all openers,
just remove the check entirely.
Fixes: d3ef5536274f ("block: fix busy device checking in blk_drop_partitions")
Fixes: cb6b771b05c3 ("block: fix busy device checking in blk_drop_partitions again")
Reported-by: Michal Koutný <mkoutny@suse.com>
Reported-by: Yang Xu <xuyang2018.jy@cn.fujitsu.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Pull NVMe fix from Christoph.
* 'nvme-5.7' of git://git.infradead.org/nvme:
nvme: prevent double free in nvme_alloc_ns() error handling
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When jumping to the out_put_disk label, we will call put_disk(), which will
trigger a call to disk_release(), which calls blk_put_queue().
Later in the cleanup code, we do blk_cleanup_queue(), which will also call
blk_put_queue().
Putting the queue twice is incorrect, and will generate a KASAN splat.
Set the disk->queue pointer to NULL, before calling put_disk(), so that the
first call to blk_put_queue() will not free the queue.
The second call to blk_put_queue() uses another pointer to the same queue,
so this call will still free the queue.
Fixes: 85136c010285 ("lightnvm: simplify geometry enumeration")
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"Three driver bugfixes, and two reverts because the original patches
revealed underlying problems which the Tegra guys are now working on"
* 'i2c/for-current-fixed' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: aspeed: Avoid i2c interrupt status clear race condition.
i2c: amd-mp2-pci: Fix Oops in amd_mp2_pci_init() error handling
Revert "i2c: tegra: Better handle case where CPU0 is busy for a long time"
Revert "i2c: tegra: Synchronize DMA before termination"
i2c: iproc: generate stop event for slave writes
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In AST2600 there have a slow peripheral bus between CPU and i2c
controller. Therefore GIC i2c interrupt status clear have delay timing,
when CPU issue write clear i2c controller interrupt status. To avoid
this issue, the driver need have read after write clear at i2c ISR.
Fixes: f327c686d3ba ("i2c: aspeed: added driver for Aspeed I2C")
Signed-off-by: ryan_chen <ryan_chen@aspeedtech.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[wsa: added Fixes tag]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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The problem is that we dereference "privdata->pci_dev" when we print
the error messages in amd_mp2_pci_init():
dev_err(ndev_dev(privdata), "Failed to enable MP2 PCI device\n");
^^^^^^^^^^^^^^^^^
Fixes: 529766e0a011 ("i2c: Add drivers for the AMD PCIe MP2 I2C controller")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Cc: stable@kernel.org
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This reverts commit a900aeac253729411cf33c6cb598c152e9e4137f because
regressions were showing up.
Suggested-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/dmaengine/20200319201140.17451-1-digetx@gmail.com/
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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This reverts commit 8814044fe0fa182abc9ff818d3da562de98bc9a7 because
regressions were showing up.
Suggested-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/dmaengine/20200319201140.17451-1-digetx@gmail.com/
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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When slave status is I2C_SLAVE_RX_END, generate I2C_SLAVE_STOP
event to i2c_client.
Fixes: c245d94ed106 ("i2c: iproc: Add multi byte read-write support for slave mode")
Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Just a collection of small fixes around this time:
- One more try for fixing PCM OSS regression
- HD-audio: a new quirk for Lenovo, the improved driver blacklisting,
a lock fix in the minor error path, and a fix for the possible race
at monitor notifiaction
- USB-audio: a quirk ID fix, a fix for POD HD500 workaround"
* tag 'sound-5.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: usb-audio: Correct a typo of NuPrime DAC-10 USB ID
ALSA: opti9xx: shut up gcc-10 range warning
ALSA: hda/hdmi: fix without unlocked before return
ALSA: hda/hdmi: fix race in monitor detection during probe
ALSA: hda/realtek - Two front mics on a Lenovo ThinkCenter
ALSA: line6: Fix POD HD500 audio playback
ALSA: pcm: oss: Place the plugin buffer overflow checks correctly (for 5.7)
ALSA: pcm: oss: Place the plugin buffer overflow checks correctly
ALSA: hda: Match both PCI ID and SSID for driver blacklist
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The USB vendor ID of NuPrime DAC-10 is not 16b0 but 16d0.
Fixes: f656891c6619 ("ALSA: usb-audio: add more quirks for DSD interfaces")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200430124755.15940-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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gcc-10 points out a few instances of suspicious integer arithmetic
leading to value truncation:
sound/isa/opti9xx/opti92x-ad1848.c: In function 'snd_opti9xx_configure':
sound/isa/opti9xx/opti92x-ad1848.c:322:43: error: overflow in conversion from 'int' to 'unsigned char' changes value from '(int)snd_opti9xx_read(chip, 3) & -256 | 240' to '240' [-Werror=overflow]
322 | (snd_opti9xx_read(chip, reg) & ~(mask)) | ((value) & (mask)))
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
sound/isa/opti9xx/opti92x-ad1848.c:351:3: note: in expansion of macro 'snd_opti9xx_write_mask'
351 | snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(3), 0xf0, 0xff);
| ^~~~~~~~~~~~~~~~~~~~~~
sound/isa/opti9xx/miro.c: In function 'snd_miro_configure':
sound/isa/opti9xx/miro.c:873:40: error: overflow in conversion from 'int' to 'unsigned char' changes value from '(int)snd_miro_read(chip, 3) & -256 | 240' to '240' [-Werror=overflow]
873 | (snd_miro_read(chip, reg) & ~(mask)) | ((value) & (mask)))
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
sound/isa/opti9xx/miro.c:1010:3: note: in expansion of macro 'snd_miro_write_mask'
1010 | snd_miro_write_mask(chip, OPTi9XX_MC_REG(3), 0xf0, 0xff);
| ^~~~~~~~~~~~~~~~~~~
These are all harmless here as only the low 8 bit are passed down
anyway. Change the macros to inline functions to make the code
more readable and also avoid the warning.
Strictly speaking those functions also need locking to make the
read/write pair atomic, but it seems unlikely that anyone would
still run into that issue.
Fixes: 1841f613fd2e ("[ALSA] Add snd-miro driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20200429190216.85919-1-arnd@arndb.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Fix the following coccicheck warning:
sound/pci/hda/patch_hdmi.c:1852:2-8: preceding lock on line 1846
After add sanity check to pass klockwork check,
The spdif_mutex should be unlock before return true
in check_non_pcm_per_cvt().
Fixes: 960a581e22d9 ("ALSA: hda: fix some klockwork scan warnings")
Signed-off-by: Wu Bo <wubo40@huawei.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/1587907042-694161-1-git-send-email-wubo40@huawei.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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A race exists between build_pcms() and build_controls() phases of codec
setup. Build_pcms() sets up notifier for jack events. If a monitor event
is received before build_controls() is run, the initial jack state is
lost and never reported via mixer controls.
The problem can be hit at least with SOF as the controller driver. SOF
calls snd_hda_codec_build_controls() in its workqueue-based probe and
this can be delayed enough to hit the race condition.
Fix the issue by invalidating the per-pin ELD information when
build_controls() is called. The existing call to hdmi_present_sense()
will update the ELD contents. This ensures initial monitor state is
correctly reflected via mixer controls.
BugLink: https://github.com/thesofproject/linux/issues/1687
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200428123836.24512-1-kai.vehmanen@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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This new Lenovo ThinkCenter has two front mics which can't be handled
by PA so far, so apply the fixup ALC283_FIXUP_HEADSET_MIC to change
the location for one of the mics.
Cc: <stable@vger.kernel.org>
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Link: https://lore.kernel.org/r/20200427030039.10121-1-hui.wang@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Apparently interface 1 is control interface akin to HD500X,
setting LINE6_CAP_CONTROL and choosing it as ctrl_if fixes
audio playback on POD HD500.
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200425201115.3430-1-anarsoul@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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An empty merge of PCM OSS fix for 5.6 code base.
The fix for 5.7 was already applied.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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The checks of the plugin buffer overflow in the previous fix by commit
f2ecf903ef06 ("ALSA: pcm: oss: Avoid plugin buffer overflow")
are put in the wrong places mistakenly, which leads to the expected
(repeated) sound when the rate plugin is involved. Fix in the right
places.
Also, at those right places, the zero check is needed for the
termination node, so added there as well, and let's get it done,
finally.
Fixes: f2ecf903ef06 ("ALSA: pcm: oss: Avoid plugin buffer overflow")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200424193350.19678-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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[ This is again a forward-port of the fix applied for 5.6-base code
(commit 4285de0725b1) to 5.7-base, hence neither Fixes nor
Cc-to-stable tags are included here -- tiwai ]
The checks of the plugin buffer overflow in the previous fix by commit
f2ecf903ef06 ("ALSA: pcm: oss: Avoid plugin buffer overflow")
are put in the wrong places mistakenly, which leads to the expected
(repeated) sound when the rate plugin is involved. Fix in the right
places.
Also, at those right places, the zero check is needed for the
termination node, so added there as well, and let's get it done,
finally.
Link: https://lore.kernel.org/r/20200424193843.20397-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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The commit 3c6fd1f07ed0 ("ALSA: hda: Add driver blacklist") added a
new blacklist for the devices that are known to have empty codecs, and
one of the entries was ASUS ROG Zenith II (PCI SSID 1043:874f).
However, it turned out that the very same PCI SSID is used for the
previous model that does have the valid HD-audio codecs and the change
broke the sound on it.
Since the empty codec problem appear on the certain AMD platform (PCI
ID 1022:1487), this patch changes the blacklist matching to both PCI
ID and SSID using pci_match_id(). Also, the entry that was removed by
the previous fix for ASUS ROG Zenigh II is re-added.
Link: https://lore.kernel.org/r/20200424061222.19792-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Pull drm fixes from Dave Airlie:
"Regular scheduled fixes for graphics. Nothing to extreme bunch of
amdgpu fixes, i915 and qxl fixes, along with some misc ones.
All seems to be progressing normally.
core:
- EDID off by one DTD fix
- DP mst write return code fix
dma-buf:
- fix SET_NAME ioctl uapi
- doc fixes
amdgpu:
- Fix a green screen on resume issue
- PM fixes for SR-IOV SDMA fix for navi
- Renoir display fixes
- Cursor and pageflip stuttering fixes
- Misc additional display fixes
- (uapi) Add additional DCC tiling flags for navi1x
i915:
- Fix selftest refcnt leak (Xiyu)
- Fix gem vma lock (Chris)
- Fix gt's i915_request.timeline acquire by checking if cacheline is
valid (Chris)
- Fix IRQ postinistall fault masks (Matt)
qxl:
- use after gree fix
- fix lost kunmap
- release leak fix
virtio:
- context destruction fix"
* tag 'drm-fixes-2020-05-01' of git://anongit.freedesktop.org/drm/drm: (26 commits)
dma-buf: fix documentation build warnings
drm/qxl: qxl_release use after free
drm/qxl: lost qxl_bo_kunmap_atomic_page in qxl_image_init_helper()
drm/i915: Use proper fault mask in interrupt postinstall too
drm/amd/display: Use cursor locking to prevent flip delays
drm/amd/display: Update downspread percent to match spreadsheet for DCN2.1
drm/amd/display: Defer cursor update around VUPDATE for all ASIC
drm/amd/display: fix rn soc bb update
drm/amd/display: check if REFCLK_CNTL register is present
drm/amdgpu: bump version for invalidate L2 before SDMA IBs
drm/amdgpu: invalidate L2 before SDMA IBs (v2)
drm/amdgpu: add tiling flags from Mesa
drm/amd/powerplay: avoid using pm_en before it is initialized revised
Revert "drm/amd/powerplay: avoid using pm_en before it is initialized"
drm/qxl: qxl_release leak in qxl_hw_surface_alloc()
drm/qxl: qxl_release leak in qxl_draw_dirty_fb()
drm/virtio: only destroy created contexts
drm/dp_mst: Fix drm_dp_send_dpcd_write() return code
drm/i915/gt: Check cacheline is valid before acquiring
drm/i915/gem: Hold obj->vma.lock over for_each_ggtt_vma()
...
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git://people.freedesktop.org/~agd5f/linux into drm-fixes
amd-drm-fixes-5.7-2020-04-29:
amdgpu:
- Fix a green screen on resume issue
- PM fixes for SR-IOV
- SDMA fix for navi
- Renoir display fixes
- Cursor and pageflip stuttering fixes
- Misc additional display fixes
UAPI:
- Add additional DCC tiling flags for navi1x
Used by: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4697
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200429212008.4306-1-alexander.deucher@amd.com
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[Why]
Current locking scheme for cursor can result in a flip missing
its vsync, deferring it for one or more vsyncs. Result is a
potential for stuttering when cursor is moved.
[How]
Use cursor update lock so that flips are not blocked while cursor
is being programmed.
Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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[WHY]
The downspread percentage was copied over from a previous version
of the display_mode_lib spreadsheet. This value has been updated,
and the previous value is too high to allow for such modes as
4K120hz. The new value is sufficient for such modes.
[HOW]
Update the value in dcn21_resource to match the spreadsheet.
Signed-off-by: Sung Lee <sung.lee@amd.com>
Reviewed-by: Yongqiang Sun <yongqiang.sun@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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[Why]
Fixes the following scenario:
- Flip has been prepared sometime during the frame, update pending
- Cursor update happens right when VUPDATE would happen
- OPTC lock acquired, VUPDATE is blocked until next frame
- Flip is delayed potentially infinitely
With the igt@kms_cursor_legacy cursor-vs-flip-legacy test we can
observe nearly *13* frames of delay for some flips on Navi.
[How]
Apply the Raven workaround generically. When close enough to VUPDATE
block cursor updates from occurring from the dc_stream_set_cursor_*
helpers.
This could perhaps be a little smarter by checking if there were
pending updates or flips earlier in the frame on the HUBP side before
applying the delay, but this should be fine for now.
This fixes the kms_cursor_legacy test.
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Currently RN SOC bounding box update assumes we will get at least
2 clock states from SMU. This isn't always true and because of special
casing on first clock state we end up with low disp, dpp, dsc and phy
clocks.
This change removes the special casing allowing the first state to
acquire correct clocks.
Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Eric Yang <eric.yang2@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Acked-by: Tony Cheng <Tony.Cheng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Check before programming the register since it isn't present on
all IPs using this code.
Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Eric Bernstein <Eric.Bernstein@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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This fixes GPU hangs due to cache coherency issues.
Bump the driver version. Split out from the original patch.
Signed-off-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Tested-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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This fixes GPU hangs due to cache coherency issues.
v2: Split the version bump to a separate patch
Signed-off-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Tested-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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DCC_INDEPENDENT_128B is needed for displayble DCC on gfx10.
SCANOUT is not needed by the kernel, but Mesa uses it.
Signed-off-by: Marek Olšák <marek.olsak@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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hwmgr->pm_en is initialized at hwmgr_hw_init.
during amdgpu_device_init, there is amdgpu_asic_reset that calls to
soc15_asic_reset (for V320 usecase, Vega10 asic), in which:
1) soc15_asic_reset_method calls to pp_get_asic_baco_capability (pm_en)
2) soc15_asic_baco_reset calls to pp_set_asic_baco_state (pm_en)
pm_en is used in the above two cases while it has not yet been initialized
So avoid using pm_en in the above two functions for V320 passthrough.
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Tiecheng Zhou <Tiecheng.Zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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This reverts commit c5207876232649ca5e5ddd6f966d2da75ffded8f.
The commit being reverted changed the wrong place, it should have
changed in func get_asic_baco_capability.
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Tiecheng Zhou <Tiecheng.Zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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[why]
We have seen a green screen after resume from suspend in a Raven system
connected with two displays (HDMI and DP) on X based system. We noticed
that this issue is related to bad DCC metadata from user space which may
generate hangs and consequently an underflow on HUBP. After taking a
deep look at the code path we realized that after resume we try to
restore the commit with the DCC enabled framebuffer but the framebuffer
is no longer valid.
[how]
This problem was only reported on Raven based system and after suspend,
for this reason, this commit adds a new parameter on
fill_plane_dcc_attributes() to give the option of disabling DCC
programmatically. In summary, for disabling DCC we first verify if is a
Raven system and if it is in suspend; if both conditions are true we
disable DCC temporarily, otherwise, it is enabled.
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1099
Co-developed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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[Why]
When link loss happened, monitor can not light up if only re-train the
link.
[How]
Blank all the DP streams on this link before re-train the link, and then
unblank the stream
Signed-off-by: Xiaodong Yan <Xiaodong.Yan@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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[why]
Organizational Unit Identifier register is optional, and its
presence is published via Down Stream Port Count register.
Writing this register when not available will result in errors
[how]
Read this register and continue writing OUI only if the panel
has the support advertised.
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
- Fix selftest refcnt leak (Xiyu)
- Fix gem vma lock (Chris)
- Fix gt's i915_request.timeline acquire by checking if cacheline is valid (Chris)
- Fix IRQ postinistall fault masks (Matt)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200430140042.GA270140@intel.com
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The IRQ postinstall handling had open-coded pipe fault mask selection
that never got updated for gen11. Switch it to use
gen8_de_pipe_fault_mask() to ensure we don't miss updates for new
platforms.
Cc: José Roberto de Souza <jose.souza@intel.com>
Fixes: d506a65d56fd ("drm/i915: Catch GTT fault errors for gen11+ planes")
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200424231423.4065231-1-matthew.d.roper@intel.com
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
(cherry picked from commit 869129ee0c624a78c74e50b51635e183196cd2c6)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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