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This commit converts names of structs / enums
in include/hal_com_phycfg.h from ALL_CAPS format to lowercase
Signed-off-by: Marco Cesati <marcocesati@gmail.com>
Link: https://lore.kernel.org/r/20210317222130.29528-25-marcocesati@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit converts names of structs / enums
in include/HalPwrSeqCmd.h from ALL_CAPS format to lowercase
Signed-off-by: Marco Cesati <marcocesati@gmail.com>
Link: https://lore.kernel.org/r/20210317222130.29528-24-marcocesati@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit converts names of structs / enums
in include/rtw_rf.h from ALL_CAPS format to lowercase
Signed-off-by: Marco Cesati <marcocesati@gmail.com>
Link: https://lore.kernel.org/r/20210317222130.29528-23-marcocesati@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit converts names of structs / enums
in include/rtw_xmit.h from ALL_CAPS format to lowercase
Signed-off-by: Marco Cesati <marcocesati@gmail.com>
Link: https://lore.kernel.org/r/20210317222130.29528-22-marcocesati@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit converts names of structs / enums
in include/rtw_mlme_ext.h from ALL_CAPS format to lowercase
Signed-off-by: Marco Cesati <marcocesati@gmail.com>
Link: https://lore.kernel.org/r/20210317222130.29528-21-marcocesati@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit converts names of structs / enums
in include/hal_phy.h from ALL_CAPS format to lowercase
Signed-off-by: Marco Cesati <marcocesati@gmail.com>
Link: https://lore.kernel.org/r/20210317222130.29528-20-marcocesati@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit converts names of structs / enums
in include/rtl8723b_hal.h from ALL_CAPS format to lowercase
Signed-off-by: Marco Cesati <marcocesati@gmail.com>
Link: https://lore.kernel.org/r/20210317222130.29528-19-marcocesati@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit converts names of structs / enums
in include/wifi.h from ALL_CAPS format to lowercase
Signed-off-by: Marco Cesati <marcocesati@gmail.com>
Link: https://lore.kernel.org/r/20210317222130.29528-18-marcocesati@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit converts names of structs / enums
in include/HalVerDef.h from ALL_CAPS format to lowercase
Signed-off-by: Marco Cesati <marcocesati@gmail.com>
Link: https://lore.kernel.org/r/20210317222130.29528-17-marcocesati@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit converts names of structs / enums
in include/rtl8723b_xmit.h from ALL_CAPS format to lowercase
Signed-off-by: Marco Cesati <marcocesati@gmail.com>
Link: https://lore.kernel.org/r/20210317222130.29528-16-marcocesati@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit converts names of structs / enums
in include/hal_com_h2c.h from ALL_CAPS format to lowercase
Signed-off-by: Marco Cesati <marcocesati@gmail.com>
Link: https://lore.kernel.org/r/20210317222130.29528-15-marcocesati@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit converts names of structs / enums
in include/rtw_security.h from ALL_CAPS format to lowercase
Signed-off-by: Marco Cesati <marcocesati@gmail.com>
Link: https://lore.kernel.org/r/20210317222130.29528-14-marcocesati@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit converts names of structs / enums
in include/osdep_service.h from ALL_CAPS format to lowercase
Signed-off-by: Marco Cesati <marcocesati@gmail.com>
Link: https://lore.kernel.org/r/20210317222130.29528-13-marcocesati@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit converts names of structs / enums
in include/hal_intf.h from ALL_CAPS format to lowercase
Signed-off-by: Marco Cesati <marcocesati@gmail.com>
Link: https://lore.kernel.org/r/20210317222130.29528-12-marcocesati@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit converts names of structs / enums
in include/rtw_cmd.h from ALL_CAPS format to lowercase
Signed-off-by: Marco Cesati <marcocesati@gmail.com>
Link: https://lore.kernel.org/r/20210317222130.29528-11-marcocesati@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit converts names of structs / enums
in include/rtw_mp.h from ALL_CAPS format to lowercase
Signed-off-by: Marco Cesati <marcocesati@gmail.com>
Link: https://lore.kernel.org/r/20210317222130.29528-10-marcocesati@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit converts names of structs / enums
in include/rtw_ht.h from ALL_CAPS format to lowercase
Signed-off-by: Marco Cesati <marcocesati@gmail.com>
Link: https://lore.kernel.org/r/20210317222130.29528-9-marcocesati@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit converts names of structs / enums
in include/drv_types.h from ALL_CAPS format to lowercase
Signed-off-by: Marco Cesati <marcocesati@gmail.com>
Link: https://lore.kernel.org/r/20210317222130.29528-8-marcocesati@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit converts names of structs / enums
in include/rtw_recv.h from ALL_CAPS format to lowercase
Signed-off-by: Marco Cesati <marcocesati@gmail.com>
Link: https://lore.kernel.org/r/20210317222130.29528-7-marcocesati@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit converts names of structs / enums
in include/rtw_eeprom.h from ALL_CAPS format to lowercase
Signed-off-by: Marco Cesati <marcocesati@gmail.com>
Link: https://lore.kernel.org/r/20210317222130.29528-6-marcocesati@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit converts names of structs / enums
in include/hal_com.h from ALL_CAPS format to lowercase
Signed-off-by: Marco Cesati <marcocesati@gmail.com>
Link: https://lore.kernel.org/r/20210317222130.29528-5-marcocesati@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit converts names of structs / enums
in include/rtw_pwrctrl.h from ALL_CAPS format to lowercase
Signed-off-by: Marco Cesati <marcocesati@gmail.com>
Link: https://lore.kernel.org/r/20210317222130.29528-4-marcocesati@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit converts names of structs / enums
in include/wlan_bssdef.h from ALL_CAPS format to lowercase
Signed-off-by: Marco Cesati <marcocesati@gmail.com>
Link: https://lore.kernel.org/r/20210317222130.29528-3-marcocesati@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit converts names of structs / enums
in include/rtw_mlme.h from ALL_CAPS format to lowercase
Signed-off-by: Marco Cesati <marcocesati@gmail.com>
Link: https://lore.kernel.org/r/20210317222130.29528-2-marcocesati@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When port partner responds "Not supported" to the DiscIdentity command,
VDM state machine can remain in NVDM_STATE_ERR_TMOUT and this causes
querying sink cap to be skipped indefinitely. Hence check for
vdm_sm_running instead of checking for VDM_STATE_DONE.
Fixes: 8dc4bd073663f ("usb: typec: tcpm: Add support for Sink Fast Role SWAP(FRS)")
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210318064805.3747831-1-badhri@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When data digest is enabled we should unmap pdu iovec before handling
the data digest pdu.
Signed-off-by: Elad Grupi <elad.grupi@dell.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
From the base spec, Figure 78:
"Controller Configuration, these fields are defined as parameters to
configure an "I/O Controller (IOC)" and not to configure a "Discovery
Controller (DC).
...
If the controller does not support I/O queues, then this field shall
be read-only with a value of 0h
Just perform this check for I/O controllers.
Fixes: a07b4970f464 ("nvmet: add a generic NVMe target")
Reported-by: Belanger, Martin <Martin.Belanger@dell.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
We only setup io queues for nvme controllers, and it makes absolutely no
sense to allow a controller (re)connect without any I/O queues. If we
happen to fail setting the queue count for any reason, we should not allow
this to be a successful reconnect as I/O has no chance in going through.
Instead just fail and schedule another reconnect.
Reported-by: Chao Leng <lengchao@huawei.com>
Fixes: 711023071960 ("nvme-rdma: add a NVMe over Fabrics RDMA host driver")
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chao Leng <lengchao@huawei.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
We only setup io queues for nvme controllers, and it makes absolutely no
sense to allow a controller (re)connect without any I/O queues. If we
happen to fail setting the queue count for any reason, we should not
allow this to be a successful reconnect as I/O has no chance in going
through. Instead just fail and schedule another reconnect.
Fixes: 3f2304f8c6d6 ("nvme-tcp: add NVMe over TCP host driver")
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
For our pure advisory use-case, we only rely on this call as a hint, so
fix the warning complaints of using the smp_processor_id variants with
preemption enabled.
Fixes: db5ad6b7f8cd ("nvme-tcp: try to send request in queue_rq context")
Fixes: ada831772188 ("nvme-tcp: Fix warning with CONFIG_DEBUG_PREEMPT")
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Tested-by: Yi Zhang <yi.zhang@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
When the controller sends us a 0-length r2t PDU we should not attempt to
try to set up a h2cdata PDU but rather conclude that this is a buggy
controller (forward progress is not possible) and simply fail it
immediately.
Fixes: 3f2304f8c6d6 ("nvme-tcp: add NVMe over TCP host driver")
Reported-by: Belanger, Martin <Martin.Belanger@dell.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
We voluntarily limit the Write Zeroes sizes to the MDTS value provided by
the hardware, but currently get the units wrong, so fix that.
Fixes: 6e02318eaea5 ("nvme: add support for the Write Zeroes command")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Tested-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
To avoid an error recovery deadlock where the keep alive work is waiting
for a request and thus can't be flushed to make progress for tearing down
the controller. Also print the error code returned from
blk_mq_alloc_request to help debugging any future issues in this code.
Based on an earlier patch from Hannes Reinecke <hare@suse.de>.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Merge nvme_keep_alive into its only caller to prepare for additional
changes to this code.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Fabrics drivers currently reserve two tags on the admin queue. But
given that the connect command is only run on a freshly created queue
or after all commands have been force aborted we only need to reserve
a single tag.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
[Why?]
Should only reroute gamut remap to mpc unless 3D LUT is not used and all
planes are using the same src->dest.
[How?]
Remove DCN30 specific logic for rerouting gamut remap to mpc.
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1513
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Dillon Varone <dillon.varone@amd.com>
Reviewed-by: Krunoslav Kovac <Krunoslav.Kovac@amd.com>
Acked-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Solomon Chiu <solomon.chiu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
[Why]
DCN30 needs to correctly program reversed gamma curve, which DCN20
already has.
Also needs to fix a bug that 252-255 values are clipped.
[How]
Apply two fixes into DCN30.
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1513
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Calvin Hou <Calvin.Hou@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Reviewed-by: Krunoslav Kovac <Krunoslav.Kovac@amd.com>
Acked-by: Solomon Chiu <solomon.chiu@amd.com>
Acked-by: Vladimir Stempen <Vladimir.Stempen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
In the situations where the DWC3 gadget stops active transfers, once
calling the dwc3_gadget_giveback(), there is a chance where a function
driver can queue a new USB request in between the time where the dwc3
lock has been released and re-aquired. This occurs after we've already
issued an ENDXFER command. When the stop active transfers continues
to remove USB requests from all dep lists, the newly added request will
also be removed, while controller still has an active TRB for it.
This can lead to the controller accessing an unmapped memory address.
Fix this by ensuring parameters to prevent EP queuing are set before
calling the stop active transfers API.
Fixes: ae7e86108b12 ("usb: dwc3: Stop active transfers before halting the controller")
Signed-off-by: Wesley Cheng <wcheng@codeaurora.org>
Link: https://lore.kernel.org/r/1615507142-23097-1-git-send-email-wcheng@codeaurora.org
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
tcpm-source-psy- does not invoke power_supply_changed API when
one of the published power supply properties is changed.
power_supply_changed needs to be called to notify
userspace clients(uevents) and kernel clients.
Fixes: f2a8aa053c176 ("typec: tcpm: Represent source supply through power_supply")
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210317181249.1062995-1-badhri@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove the unused "u32 vdo[3]" part in the tps6598x_rx_identity_reg
struct. This helps avoid "failed to register partner" errors which
happen when tps6598x_read_partner_identity() fails because the
amount of data read is 12 bytes smaller than the struct size.
Note that vdo[3] is already in usb_pd_identity and hence
shouldn't be added to tps6598x_rx_identity_reg as well.
Fixes: f6c56ca91b92 ("usb: typec: Add the Product Type VDOs to struct usb_pd_identity")
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Guido Günther <agx@sigxcpu.org>
Signed-off-by: Elias Rudberg <mail@eliasrudberg.se>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210311124710.6563-1-mail@eliasrudberg.se
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Matthias reports that the Amazon Kindle automatically removes its
emulated media if it doesn't receive another SCSI command within about
one second after a SYNCHRONIZE CACHE. It does so even when the host
has sent a PREVENT MEDIUM REMOVAL command. The reason for this
behavior isn't clear, although it's not hard to make some guesses.
At any rate, the results can be unexpected for anyone who tries to
access the Kindle in an unusual fashion, and in theory they can lead
to data loss (for example, if one file is closed and synchronized
while other files are still in the middle of being written).
To avoid such problems, this patch creates a new usb-storage quirks
flag telling the driver always to issue a REQUEST SENSE following a
SYNCHRONIZE CACHE command, and adds an unusual_devs entry for the
Kindle with the flag set. This is sufficient to prevent the Kindle
from doing its automatic unload, without interfering with proper
operation.
Another possible way to deal with this would be to increase the
frequency of TEST UNIT READY polling that the kernel normally carries
out for removable-media storage devices. However that would increase
the overall load on the system and it is not as reliable, because the
user can override the polling interval. Changing the driver's
behavior is safer and has minimal overhead.
CC: <stable@vger.kernel.org>
Reported-and-tested-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Link: https://lore.kernel.org/r/20210317190654.GA497856@rowland.harvard.edu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When gadget is disconnected, running sequence is like this.
. composite_disconnect
. Call trace:
usb_string_copy+0xd0/0x128
gadget_config_name_configuration_store+0x4
gadget_config_name_attr_store+0x40/0x50
configfs_write_file+0x198/0x1f4
vfs_write+0x100/0x220
SyS_write+0x58/0xa8
. configfs_composite_unbind
. configfs_composite_bind
In configfs_composite_bind, it has
"cn->strings.s = cn->configuration;"
When usb_string_copy is invoked. it would
allocate memory, copy input string, release previous pointed memory space,
and use new allocated memory.
When gadget is connected, host sends down request to get information.
Call trace:
usb_gadget_get_string+0xec/0x168
lookup_string+0x64/0x98
composite_setup+0xa34/0x1ee8
If gadget is disconnected and connected quickly, in the failed case,
cn->configuration memory has been released by usb_string_copy kfree but
configfs_composite_bind hasn't been run in time to assign new allocated
"cn->configuration" pointer to "cn->strings.s".
When "strlen(s->s) of usb_gadget_get_string is being executed, the dangling
memory is accessed, "BUG: KASAN: use-after-free" error occurs.
Cc: stable@vger.kernel.org
Signed-off-by: Jim Lin <jilin@nvidia.com>
Signed-off-by: Macpaul Lin <macpaul.lin@mediatek.com>
Link: https://lore.kernel.org/r/1615444961-13376-1-git-send-email-macpaul.lin@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Currently udc->ud.tcp_rx is being assigned twice, the second assignment
is incorrect, it should be to udc->ud.tcp_tx instead of rx. Fix this.
Fixes: 46613c9dfa96 ("usbip: fix vudc usbip_sockfd_store races leading to gpf")
Acked-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Cc: stable <stable@vger.kernel.org>
Addresses-Coverity: ("Unused value")
Link: https://lore.kernel.org/r/20210311104445.7811-1-colin.king@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
MODULE_SUPPORTED_DEVICE was added in pre-git era and never was
implemented. We can safely remove it, because the kernel has grown
to have many more reliable mechanisms to determine if device is
supported or not.
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
table failed to allocate due to a big number of states (Manaf
Meethalavalappu Pallikunhi).
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Merge tag 'thermal-v5.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux
Pull thermal framework fix from Daniel Lezcano:
"Fix NULL pointer access when the cooling device transition stats
table failed to allocate due to a big number of states (Manaf
Meethalavalappu Pallikunhi)"
* tag 'thermal-v5.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux:
thermal/core: Add NULL pointer check before using cooling device stats
r is "u32" always >= 0,mipi_dsi_create_packet may return little than zero.
so r < 0 condition is never accessible.
Fixes coccicheck warnings:
./drivers/gpu/drm/omapdrm/dss/dsi.c:2155:5-6:
WARNING: Unsigned expression compared with zero: r < 0
Signed-off-by: Junlin Yang <yangjunlin@yulong.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210312071445.1721-1-angkery@163.com
SAMPLE_OA parameter enables sampling of OA buffer and results in a call
to init the OA buffer which initializes the OA unit head/tail pointers.
The OA_EXPONENT parameter controls the periodicity of the OA reports in
the OA buffer and results in starting a hrtimer.
Before gen12, all use cases required the use of the OA buffer and i915
enforced this setting when vetting out the parameters passed. In these
platforms the hrtimer was enabled if OA_EXPONENT was passed. This worked
fine since it was implied that SAMPLE_OA is always passed.
With gen12, this changed. Users can use perf without enabling the OA
buffer as in OAR use cases. While an OAR use case should ideally not
start the hrtimer, we see that passing an OA_EXPONENT parameter will
start the hrtimer even though SAMPLE_OA is not specified. This results
in an uninitialized OA buffer, so the head/tail pointers used to track
the buffer are zero.
This itself does not fail, but if we ran a use-case that SAMPLED the OA
buffer previously, then the OA_TAIL register is still pointing to an old
value. When the timer callback runs, it ends up calculating a
wrong/large number of available reports. Since we do a spinlock_irq_save
and start processing a large number of reports, NMI watchdog fires and
causes a crash.
Start the timer only if SAMPLE_OA is specified.
v2:
- Drop SAMPLE OA check when appending samples (Ashutosh)
- Prevent read if OA buffer is not being sampled
Fixes: 00a7f0d7155c ("drm/i915/tgl: Add perf support on TGL")
Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210305210947.58751-1-umesh.nerlige.ramappa@intel.com
(cherry picked from commit be0bdd67fda9468156c733976688f6487d0c42f7)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
On HSW/BDW with VT-d active the first tile row scanned out
after the first async flip of the frame often ends up corrupted.
Whether the corruption happens or not depends on the scanline
on which the async flip happens, but the behaviour seems very
consistent. Ie. the same set of scanlines (which are most scanlines)
always show the corruption. And another set of scanlines (far less
of them) never shows the corruption.
I discovered that disabling the fetch-stride stretching
feature cures the corruption. This is some kind of TLB related
prefetch thing AFAIK. We already disable it on SNB primary
planes due to a documented workaround. The hardware folks
indicated that disabling this should be fine, so let's go
with that.
And while we're here, let's document the relevant bits on all
pre-skl platforms.
Fixes: 2a636e240c77 ("drm/i915: Implement async flip for ivb/hsw")
Fixes: cda195f13abd ("drm/i915: Implement async flips for bdw")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210220103303.3448-1-ville.syrjala@linux.intel.com
Reviewed-by: Karthik B S <karthik.b.s@intel.com>
(cherry picked from commit b7a7053ab2ec558b8ae4e55f62ea8f1f58e14f5c)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
In ww_acquire_init(), mutex_acquire() is gated by CONFIG_DEBUG_LOCK_ALLOC.
The dep_map in the ww_acquire_ctx structure is also gated by the
same config. However mutex_release() in ww_acquire_fini() is gated by
CONFIG_DEBUG_MUTEXES. It is possible to set CONFIG_DEBUG_MUTEXES without
setting CONFIG_DEBUG_LOCK_ALLOC though it is an unlikely configuration.
That may cause a compilation error as dep_map isn't defined in this
case. Fix this potential problem by enclosing mutex_release() inside
CONFIG_DEBUG_LOCK_ALLOC.
Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20210316153119.13802-3-longman@redhat.com
