Remove the base entry from the power transition steps. This field
is not used.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20211219183926.4746-7-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
For the r8188 driver, we always have a usb interface. We can remove
the power transition steps that are not applicable for a usb interface.
We can then remove the interface mask itself.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20211219183926.4746-6-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove the fab mask from the steps of the power transitions.
The fab mask is not used, all values are allowed for all steps.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20211219183926.4746-5-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove the power cut mask from the steps of the power transitions.
The power cut mask is not used, all values are allowed for all steps.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20211219183926.4746-4-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
There's no need to set the array size explicitly if an array is
initialized with a constant value. Remove the array sizes and
related definitions for the power transition arrays.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20211219183926.4746-3-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The r8188 driver defines a number of transitions between different
power states. Remove the transitions which are not used by the rest
of the code.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20211219183926.4746-2-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove the ODM_BB_RA_MASK capability. It is always set for this driver.
Like for ODM_BB_DIG before, we can be sure that ODM_BB_RA_MASK was never
checked before it was set.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20211218120423.29906-10-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove the ODM_BB_DIG capability. It is always set for this driver.
(ODM_BB_DIG was set in Update_ODM_ComInfo_88E and checked in odm_DIG,
which was always called after the capability was set.)
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20211218120423.29906-9-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The r8188 driver installs a dummy handler for some unused ioctls. All
that the dummy handler does is return -1.
Remove the dummy handler and let the wext core handle unused ioctls.
This way, user space gets a consistent errno for an unused wext ioctl,
regardless of which driver is used for the interface.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20211218120423.29906-3-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The _linked_rx_signal_strength_display function is used only in
rtw_mlme_ext.c. Make the function static and remove the prototype.
While at it, fix a typo in the function name.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20211218120423.29906-2-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
I just fixed a bug in copy_process when using the label
bad_fork_cleanup_threadgroup_lock. While fixing the bug I looked
closer at the label and realized it has been misnamed since
568ac88821 ("cgroup: reduce read locked section of
cgroup_threadgroup_rwsem during fork").
Fix the name so that fork is easier to understand.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Mark Brown <broonie@kernel.org> reported:
> This is also causing further build errors including but not limited to:
>
> /tmp/next/build/kernel/fork.c: In function 'copy_process':
> /tmp/next/build/kernel/fork.c:2106:4: error: label 'bad_fork_cleanup_threadgroup_lock' used but not defined
> 2106 | goto bad_fork_cleanup_threadgroup_lock;
> | ^~~~
It turns out that I messed up and was depending upon a label protected
by an ifdef. Move the label out of the ifdef as the ifdef around the label
no longer makes sense (if it ever did).
Link: https://lkml.kernel.org/r/YbugCP144uxXvRsk@sirena.org.uk
Fixes: 40966e316f ("kthread: Ensure struct kthread is present for all kthreads")
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Clean up the rtl8188e_sreset_linked_status_check, which has just
been moved to rtw_mlme_ext.
Don't initialise variables to 0 if the first access sets a new value.
Check the value of fw_status only once.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20211212185833.22000-4-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Move rtl8188e_sreset_linked_status_check from the hal layer into
rtw_mlme_ext.c.
Like the xmit status check, this is a simple function that's only
called from one place.
With this function gone, hal/rtl8188e_sreset.c and
include/rtl8188e_sreset.h are now empty and can be removed.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20211212185833.22000-3-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Move rtl8188e_sreset_xmit_status_check from the hal layer into
rtw_cmd.c.
As this driver supports only the 8188 chipset, there's no need
to go through the hal layer for simple operations that have only
one caller.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20211212185833.22000-2-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The double `for' in the comment in line 2203 is repeated. Remove one
of them from the comment.
Signed-off-by: Jason Wang <wangborong@cdjrlc.com>
Link: https://lore.kernel.org/r/20211211091632.264035-1-wangborong@cdjrlc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The double `new' in the comment in line 1349 and `to' in the comment in
line 2030 are repeated. Remove the repeated words from these comments.
Signed-off-by: Jason Wang <wangborong@cdjrlc.com>
Link: https://lore.kernel.org/r/20211211091422.260442-1-wangborong@cdjrlc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
pm_runtime_get_sync can also return 1 on success, change
to use pm_runtime_resume_and_get which return 0 only on
success.
This bug has been discovered by Dan Carpenter by using Smatch
static checker.
Fixes: 285892a74f ("remoteproc: Add Renesas rcar driver")
Signed-off-by: Julien Massot <julien.massot@iot.bzh>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
[Fixed blank line between tags]
Link: https://lore.kernel.org/r/20211216160653.203768-1-julien.massot@iot.bzh
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
A large part of this is cleanups to existing device trees in order to
improve validation of the device trees using the dt-schema tooling.
This also contains a set of new device trees for various boards that
have been contributed by community members as well as fixes to existing
devices.
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Merge tag 'tegra-for-5.17-arm-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/dt
ARM: tegra: Changes for v5.17-rc1
A large part of this is cleanups to existing device trees in order to
improve validation of the device trees using the dt-schema tooling.
This also contains a set of new device trees for various boards that
have been contributed by community members as well as fixes to existing
devices.
* tag 'tegra-for-5.17-arm-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: (55 commits)
ARM: tegra: Add host1x hotflush reset on Tegra124
ARM: tegra: Add memory client hotflush resets on Tegra114
ARM: tegra: Add back gpio-ranges properties
ARM: tegra: paz00: Enable S/PDIF and HDMI audio
ARM: tegra: acer-a500: Enable S/PDIF and HDMI audio
ARM: tegra: Add HDMI audio graph to Tegra20 device-tree
ARM: tegra: Add S/PDIF node to Tegra20 device-tree
ARM: tegra20/30: Disable unused host1x hardware
ARM: tegra: Add Memory Client resets to Tegra30 GR2D, GR3D and Host1x
ARM: tegra: Add Memory Client resets to Tegra20 GR2D, GR3D and Host1x
ARM: tegra: Add OPP tables and power domains to Tegra30 device-trees
ARM: tegra: Add OPP tables and power domains to Tegra20 device-trees
ARM: tegra: Add 500 MHz entry to Tegra30 memory OPP table
ARM: tegra: Enable video decoder on Tegra114
ARM: tegra: nexus7: Use common LVDS display device-tree
ARM: tegra: Add CPU thermal zones to Nyan device-tree
ARM: tegra: Enable CPU DFLL on Nyan
ARM: tegra: Enable HDMI CEC on Nyan
ARM: tegra: Add usb-role-switch property to USB OTG ports
ARM: tegra: Add device-tree for 1080p version of Nyan Big
...
Link: https://lore.kernel.org/r/20211217162253.1801077-5-thierry.reding@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Large pkt_len can lead to out-out-bound memcpy. Current
ath9k_hif_usb_rx_stream allows combining the content of two urb
inputs to one pkt. The first input can indicate the size of the
pkt. Any remaining size is saved in hif_dev->rx_remain_len.
While processing the next input, memcpy is used with rx_remain_len.
4-byte pkt_len can go up to 0xffff, while a single input is 0x4000
maximum in size (MAX_RX_BUF_SIZE). Thus, the patch adds a check for
pkt_len which must not exceed 2 * MAX_RX_BUG_SIZE.
BUG: KASAN: slab-out-of-bounds in ath9k_hif_usb_rx_cb+0x490/0xed7 [ath9k_htc]
Read of size 46393 at addr ffff888018798000 by task kworker/0:1/23
CPU: 0 PID: 23 Comm: kworker/0:1 Not tainted 5.6.0 #63
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
BIOS rel-1.10.2-0-g5f4c7b1-prebuilt.qemu-project.org 04/01/2014
Workqueue: events request_firmware_work_func
Call Trace:
<IRQ>
dump_stack+0x76/0xa0
print_address_description.constprop.0+0x16/0x200
? ath9k_hif_usb_rx_cb+0x490/0xed7 [ath9k_htc]
? ath9k_hif_usb_rx_cb+0x490/0xed7 [ath9k_htc]
__kasan_report.cold+0x37/0x7c
? ath9k_hif_usb_rx_cb+0x490/0xed7 [ath9k_htc]
kasan_report+0xe/0x20
check_memory_region+0x15a/0x1d0
memcpy+0x20/0x50
ath9k_hif_usb_rx_cb+0x490/0xed7 [ath9k_htc]
? hif_usb_mgmt_cb+0x2d9/0x2d9 [ath9k_htc]
? _raw_spin_lock_irqsave+0x7b/0xd0
? _raw_spin_trylock_bh+0x120/0x120
? __usb_unanchor_urb+0x12f/0x210
__usb_hcd_giveback_urb+0x1e4/0x380
usb_giveback_urb_bh+0x241/0x4f0
? __hrtimer_run_queues+0x316/0x740
? __usb_hcd_giveback_urb+0x380/0x380
tasklet_action_common.isra.0+0x135/0x330
__do_softirq+0x18c/0x634
irq_exit+0x114/0x140
smp_apic_timer_interrupt+0xde/0x380
apic_timer_interrupt+0xf/0x20
I found the bug using a custome USBFuzz port. It's a research work
to fuzz USB stack/drivers. I modified it to fuzz ath9k driver only,
providing hand-crafted usb descriptors to QEMU.
After fixing the value of pkt_tag to ATH_USB_RX_STREAM_MODE_TAG in QEMU
emulation, I found the KASAN report. The bug is triggerable whenever
pkt_len is above two MAX_RX_BUG_SIZE. I used the same input that crashes
to test the driver works when applying the patch.
Signed-off-by: Zekun Shen <bruceshenzk@gmail.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/YXsidrRuK6zBJicZ@10-18-43-117.dynapool.wireless.nyu.edu
syzbot is reporting lockdep warning at ath9k_wmi_event_tasklet() followed
by kernel panic at get_htc_epid_queue() from ath9k_htc_tx_get_packet() from
ath9k_htc_txstatus() [1], for ath9k_wmi_event_tasklet(WMI_TXSTATUS_EVENTID)
depends on spin_lock_init() from ath9k_init_priv() being already completed.
Since ath9k_wmi_event_tasklet() is set by ath9k_init_wmi() from
ath9k_htc_probe_device(), it is possible that ath9k_wmi_event_tasklet() is
called via tasklet interrupt before spin_lock_init() from ath9k_init_priv()
from ath9k_init_device() from ath9k_htc_probe_device() is called.
Let's hold ath9k_wmi_event_tasklet(WMI_TXSTATUS_EVENTID) no-op until
ath9k_tx_init() completes.
Link: https://syzkaller.appspot.com/bug?extid=31d54c60c5b254d6f75b [1]
Reported-by: syzbot <syzbot+31d54c60c5b254d6f75b@syzkaller.appspotmail.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Tested-by: syzbot <syzbot+31d54c60c5b254d6f75b@syzkaller.appspotmail.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/77b76ac8-2bee-6444-d26c-8c30858b8daa@i-love.sakura.ne.jp
syzbot is reporting lockdep warning followed by kernel panic at
ath9k_htc_rxep() [1], for ath9k_htc_rxep() depends on ath9k_rx_init()
being already completed.
Since ath9k_htc_rxep() is set by ath9k_htc_connect_svc(WMI_BEACON_SVC)
from ath9k_init_htc_services(), it is possible that ath9k_htc_rxep() is
called via timer interrupt before ath9k_rx_init() from ath9k_init_device()
is called.
Since we can't call ath9k_init_device() before ath9k_init_htc_services(),
let's hold ath9k_htc_rxep() no-op until ath9k_rx_init() completes.
Link: https://syzkaller.appspot.com/bug?extid=4d2d56175b934b9a7bf9 [1]
Reported-by: syzbot <syzbot+4d2d56175b934b9a7bf9@syzkaller.appspotmail.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Tested-by: syzbot <syzbot+4d2d56175b934b9a7bf9@syzkaller.appspotmail.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/2b88f416-b2cb-7a18-d688-951e6dc3fe92@i-love.sakura.ne.jp
IEEE80211_HW_USES_RSS is set in ath11k, then the device uses RSS and
thus requires parallel RX which implies using per-CPU station statistics
in sta_get_last_rx_stats() of mac80211. Currently signal is only set in
ath11k_mgmt_rx_event(), and not set for RX data packet, then it show
signal as 0 for iw command easily.
Change to get signal from firmware and report to mac80211.
For QCA6390 and WCN6855, the rssi value is already in dbm unit, so
don't need to convert it again.
Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1
Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20211216070535.31732-1-quic_wgong@quicinc.com
Switching from legacy usage of ieee80211_get_tx_rates() lookup to direct
rate table lookup in struct ieee80211_sta->rates.
The current rate control API allows drivers to directly get rates from
ieee80211_sta->rates. ath5k is currently one of the legacy drivers that
perform translation/merge with the internal rate table via
ieee80211_get_tx_rates provided by rate control API.
For our upcoming changes to rate control API and the implementation of
transmit power control, this patch changes the behaviour. The call to
ieee80211_get_tx_rates and subsequent calls are also avoided. ath5k now
directly reads rates from sta->rates into its internal rate table. Cause
ath5k does not rely on the rate array in SKB->CB, this is not considered
anymore except for the first entry (used for probing).
Tested this on a PCEngines ALIX with CMP9-GP miniPCI wifi card (Atheros
AR5213A). Generated traffic between AP and multiple STAs before and
after applying the patch and simultaneously measured throughput and
captured rc_stats. Comparison resulted in same rate selection and no
performance loss between both runs.
Co-developed-by: Thomas Huehn <thomas.huehn@hs-nordhausen.de>
Signed-off-by: Thomas Huehn <thomas.huehn@hs-nordhausen.de>
Signed-off-by: Jonas Jelonek <jelonek.jonas@gmail.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20211215215042.637-1-jelonek.jonas@gmail.com
Update the SCIF serial driver to remove printouts for break, frame, parity
and overrun errors. This reduces the amount of console printouts generated
by the defconfig kernel on R-Car Gen3 for certain use cases. To retrieve
more information about such errors the user may inspect counters. Also these
errors are fed into the TTY layer for further application specific handling.
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Link: https://lore.kernel.org/r/163884254093.18109.2982470198301927679.sendpatchset@octo
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
It's better to stick with standard API to write and read DL value
when the hardware is compatible with it. In case any quirks are
needed it may be easily added in one place rather than modifying
code here and there.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20211122133512.8947-4-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add UPF_MAGIC_MULTIPLIER to the port flags since there is now
range checking in serial8250_get_baud_rate() in 8250_port.c.
Signed-off-by: Jay Dolan <jay.dolan@accesio.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20211122133512.8947-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pericom along with Acces I/O support consumes a lot of LOCs in 8250_pci.c.
For the sake of easier maintenance, split it to a separate driver.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20211122133512.8947-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
On modern Exynos SoCs (like Exynos850) the UART can be implemented as a
part of USI IP-core. In such case, USI driver is used to initialize USI
registers, and it also calls of_platform_populate() to instantiate all
sub-nodes (e.g. serial node) of USI node. When serial driver is
built-in, but USI driver is a module, and CONFIG_SERIAL_SAMSUNG_CONSOLE
is enabled, next call chain will happen when loading USI module from
user space:
usi_init
v
usi_probe
v
of_platform_populate
v
s3c24xx_serial_probe
v
uart_add_one_port
v
uart_configure_port
v
register_console
v
try_enable_new_console
v
s3c24xx_serial_console_setup
But because the serial driver is built-in, and
s3c24xx_serial_console_setup() is marked with __init keyword, that
symbol will discarded and long gone by that time already, causing failed
paging request.
That happens during the next config combination:
EXYNOS_USI=m
SERIAL_SAMSUNG=y
SERIAL_SAMSUNG_CONSOLE=y
That config should be completely possible, so rather than limiting
SERIAL_SAMSUNG choice to "m" only when USI=m, remove __init keyword for
all affected functions.
Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20211204195757.8600-6-semen.protsenko@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Enable serial driver to be built as a module. To do so, init the console
support on driver/module load instead of using console_initcall().
Inspired by commit 87a0b9f98a ("tty: serial: meson: enable console as
module").
Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20211204195757.8600-5-semen.protsenko@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
USI control is now extracted to the dedicated USI driver. Remove USI
related code from serial driver to avoid conflicts and code duplication.
Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20211204195757.8600-4-semen.protsenko@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Merge xen fixes from Juergen Gross:
"Fixes for two issues related to Xen and malicious guests:
- Guest can force the netback driver to hog large amounts of memory
- Denial of Service in other guests due to event storms"
* 'xsa' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/netback: don't queue unlimited number of packages
xen/netback: fix rx queue stall detection
xen/console: harden hvc_xen against event channel storms
xen/netfront: harden netfront against event channel storms
xen/blkfront: harden blkfront against event channel storms
Now that we require locking to evict, multiple vmas from the same object
might not be evicted. This is expected and required, because execbuf will
move to short-term pinning by using the lock only. This will cause these
tests to fail, because they create a ton of vma's for the same object.
Unbind manually to prevent spurious -ENOSPC in those mock tests.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211216142749.1966107-8-maarten.lankhorst@linux.intel.com
In the next commits, we may not evict when refcount = 0.
igt_vm_isolation() continuously tries to pin/unpin at same address,
but also calls put() on the object, which means the object may not
be unpinned in time.
Instead of this, re-use the same object over and over, so they can
be unbound as required.
Changes since v1:
- Fix cleaning up obj_b on failure. (Matt)
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211216142749.1966107-7-maarten.lankhorst@linux.intel.com
We will need the lock to unbind the vma, and wait for bind to complete.
Remove the special casing for the !ww path, and force ww locking for all.
Changes since v1:
- Pass err to for_i915_gem_ww handling for -EDEADLK handling.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211216142749.1966107-6-maarten.lankhorst@linux.intel.com
Big delta, but boils down to moving set_pages to i915_vma.c, and removing
the special handling, all callers use the defaults anyway. We only remap
in ggtt, so default case will fall through.
Because we still don't require locking in i915_vma_unpin(), handle this by
using xchg in get_pages(), as it's locked with obj->mutex, and cmpxchg in
unpin, which only fails if we race a against a new pin.
Changes since v1:
- aliasing gtt sets ZERO_SIZE_PTR, not -ENODEV, remove special case
from __i915_vma_get_pages(). (Matt)
Changes since v2:
- Free correct old pages in __i915_vma_get_pages(). (Matt)
Remove race of clearing vma->pages accidentally from put,
free it but leave it set, as only get has the lock.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211216142749.1966107-4-maarten.lankhorst@linux.intel.com
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
- A couple of cleanups from Lukas Bulwahn to remove left-over from
i.MX{27,31,35} board file removal, and rename DEBUG_IMX21_IMX27_UART
to DEBUG_IMX27_UART.
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Merge tag 'imx-soc-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/soc
i.MX SoC update for 5.17:
- A couple of cleanups from Lukas Bulwahn to remove left-over from
i.MX{27,31,35} board file removal, and rename DEBUG_IMX21_IMX27_UART
to DEBUG_IMX27_UART.
* tag 'imx-soc-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: imx: rename DEBUG_IMX21_IMX27_UART to DEBUG_IMX27_UART
ARM: imx: remove dead left-over from i.MX{27,31,35} removal
Link: https://lore.kernel.org/r/20211218071427.26745-2-shawnguo@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- Enable pinctrl and clock drivers for i.MX8 ULP SoC.
- A couple of patches from Adam Ford to enable Camera driver support
for Beacon EmbeddedWorks i.MX8MM development kit.
- Enable drivers for devices found on TQMa8MxML-MBa8Mx board.
- Enable RTC_DRV_RV3029C2 driver support for DHCOM devices.
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Merge tag 'imx-defconfig-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/defconfig
i.MX defconfig update for 5.17:
- Enable pinctrl and clock drivers for i.MX8 ULP SoC.
- A couple of patches from Adam Ford to enable Camera driver support
for Beacon EmbeddedWorks i.MX8MM development kit.
- Enable drivers for devices found on TQMa8MxML-MBa8Mx board.
- Enable RTC_DRV_RV3029C2 driver support for DHCOM devices.
* tag 'imx-defconfig-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: imx_v6_v7_defconfig: Enable for DHCOM devices required RTC_DRV_RV3029C2
arm64: defconfig: enable drivers for booting i.MX8ULP
arm64: defconfig: enable drivers for TQ TQMa8MxML-MBa8Mx
arm64: defconfig: Enable OV5640
arm64: defconfig: Enable VIDEO_IMX_MEDIA
Link: https://lore.kernel.org/r/20211218071427.26745-6-shawnguo@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Call drop_pages with the gem object lock held, instead of the other
way around. This will allow us to drop the vma bindings with the
gem object lock held.
We plan to require the object lock for unpinning in the future,
and this is an easy target.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211216142749.1966107-3-maarten.lankhorst@linux.intel.com
When reworking the code to move the eviction fence to the object,
the best code is removed code.
Remove some functions that are unused, and change the function definition
if it's only used in 1 place.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com>
[mlankhorst: Remove new use of i915_active_has_exclusive]
Link: https://patchwork.freedesktop.org/patch/msgid/20211216142749.1966107-2-maarten.lankhorst@linux.intel.com
