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After supporting more than one channel, we need entity mode to decide
how to set current channel(s) on the sub-entities. This decision may
happen on set_channel() and rtw89_core_set_chip_txpwr().
For now, we support single one channel and use only first HW entry,
i.e. RTW89_SUB_ENTITY_0, RTW89_MAC_0, RTW89_PHY_0. Without something
unexpected, the entity mode should always be RTW89_ENT_MODE_SCC after
recalcated, where SCC means single channel concurrency. So, an assert
is added in set_channel() and rtw89_core_set_chip_txpwr().
Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220809104952.61355-11-pkshih@realtek.com
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While idle, we need a default chandef to set channel for things,
such as scan. Before support of mac80211 chanctx, mac80211 would
configure a default one on ieee80211_hw::conf::chandef. And we
just queried it whenever we did set channel. However, after support
of mac80211 chanctx, the flow won't work like before.
Besides, we don't now query chandef from ieee80211_hw::conf::chandef
either. So, similar to mac80211 without using chanctx, we configure
the default chandef with ieee80211_channel of index 0 in 2GHz.
Although we have not added the support of mac80211 chanctx here,
this configuration should be compatible before that. So, we commit
this ahead.
Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220809104952.61355-10-pkshih@realtek.com
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Originally, we didn't support mac80211 chanctx, so it's expected that
ieee80211_hw::conf::chandef would be filled by mac80211. And then, we
could just query it whenever we need the current chandef.
However, we are planing to support mac80211 chanctx. After that, the
above assumption would be broken. So, we adjust a bit ahead to reduce
future works about mac80211 chanctx.
After this, we don't query ieee80211_hw::conf::chandef directly, and
we add a map, entity_map, to HAL to indicate which chandef came from
stack. And it will later be used to recalcate entity mode.
Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220809104952.61355-9-pkshih@realtek.com
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For future support on multiple channels by multiple sub-entities,
we need to manage parameters of each channel instance like rtw89_chan,
rtw89_mac_idx, rtw89_phy_idx. So, we adjust related channel callback
functions and centrally conrtol these parameters in set_channel().
Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220809104952.61355-8-pkshih@realtek.com
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For future support on multiple channels, there will be settings of
multiple sub-entities that we need to control. We don't want such
settings to be scattered all over the place. So, we centrally manage
controls of rtw89_phy_idx for RFK in set_channel().
Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220809104952.61355-7-pkshih@realtek.com
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For future support on multiple channels, it would be disturbing if we
still allow scattered leaf functions of TX power to query and manage
channel related control by themselves.
So, query rtw89_chan only on top functions. Then, pass it via functions
to make sure that the values coming from the same struct rtw89_chan.
Besides, fix rtw8852a_set_txpwr_offset() from rtw8852a_set_txpwr_ctrl()
to rtw8852a_set_txpwr(). TX power offset should consider current band,
so move it to chip_ops::set_txpwr() which will be called every time that
channel is set.
Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220809104952.61355-6-pkshih@realtek.com
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Sometimes we need to write current rtw89_chan outside set_channel(),
e.g. during HW scan, we adjust it to align FW process through C2H.
However, we don't have full parameters to fill entire rtw89_chan.
And it will breakage if we update only part of current rtw89_chan.
That is what we don't want to see because most flows throughout
driver treat rtw89_chan as a whole.
So, we divide struct rtw89_chan to basic part and derived part. The
basic part contains the parameters which we are always able to know.
And the derived part will be calculated by the basic part. Then, a
central function, rtw89_chan_create(), is added to deal with this.
Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220809104952.61355-5-pkshih@realtek.com
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We are planning to support mac80211 chanctx. To reduce future works,
the driver architecture is adjusted first to isolate related things.
According to chip, our HW may have multiple sub-entities to support
multiple mac80211 chanctx. Struct rtw89_chan has been introduced for
things about channel/band/subband/... Now introduce struct rtw89_chan_rcd
to record difference after assigning new one of struct rtw89_chan.
We will implement and support chanctx with single channel first, i.e.
only use entry in RTW89_SUB_ENTITY_0, before handling dual channels.
Our hierarchy in planning will become as the following.
DEV
-> HAL
---> entity (manage status across sub-entities)
-----> sub-entity[*] (support mac80211 chanctx)
where each sub-entity contains one struct rtw89_chan.
Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220809104952.61355-4-pkshih@realtek.com
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Introduce struct rtw89_chan ahead to encapsulate stuffs from struct
rtw89_channel_params. These stuffs have a clone in HAL and are used
throughout driver. After multiple channels support, it's expected that
each channel instance has a configuration of them. So, we refine them
with struct rtw89_chan by precise type first, and will re-arrange HAL
by struct rtw89_chan in the following as well.
(No logic has changed.)
Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220809104952.61355-3-pkshih@realtek.com
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We need to invoke the callback of the changed band at the first
set_channel() after every power-off. Originally, we forced the
channel to be 0 when doing power-off, and then determined things
by comparing channel with 0.
However, deciding on such things by channel might be confusing.
It's also confusing to use this kind of decision when we consider
multiple channels in the follow-up patches. So, another flag,
entity_active, is added ahead to HAL to deal with this.
Besides, we also need to check if entity is active when we set
TX power.
Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220809104952.61355-2-pkshih@realtek.com
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Remove the code to unregister acpi_video backlight devices when
a native backlight device gets registered later.
Now that the acpi_video backlight device registration is a separate step
which runs later, after the drm/kms driver is done setting up its own
native backlight device, it is no longer necessary to monitor for a
native (BACKLIGHT_RAW) device showing up later and to then unregister
the acpi_video backlight device(s).
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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On x86/ACPI boards the acpi_video driver will usually initialize before
the kms driver (except i915). This causes /sys/class/backlight/acpi_video0
to show up and then the kms driver registers its own native backlight
device after which the drivers/acpi/video_detect.c code unregisters
the acpi_video0 device (when acpi_video_get_backlight_type()==native).
This means that userspace briefly sees 2 devices and the disappearing of
acpi_video0 after a brief time confuses the systemd backlight level
save/restore code, see e.g.:
https://bbs.archlinux.org/viewtopic.php?id=269920
To fix this make backlight class device registration a separate step
done by a new acpi_video_register_backlight() function. The intend is for
this to be called by the drm/kms driver *after* it is done setting up its
own native backlight device. So that acpi_video_get_backlight_type() knows
if a native backlight will be available or not at acpi_video backlight
registration time, avoiding the add + remove dance.
Note the new acpi_video_register_backlight() function is also called from
a delayed work to ensure that the acpi_video backlight devices does get
registered if necessary even if there is no drm/kms driver or when it is
disabled.
Changes in v2:
- Make register_backlight_delay a module parameter, mainly so that it can
be disabled by Nvidia binary driver users
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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When acpi_video_register() has not run yet the video_bus_head will be
empty, so there is no need to check the register_count flag first.
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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Move the list_del removing an acpi_video_bus from video_bus_head
on teardown to before the teardown is done, to avoid code iterating
over the video_bus_head list seeing acpi_video_bus objects on there
which are (partly) torn down already.
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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All x86/ACPI kms drivers which register native/BACKLIGHT_RAW type
backlight devices call acpi_video_backlight_use_native() now. This sets
__acpi_video_get_backlight_type()'s internal static native_available flag.
This makes the backlight_device_get_by_type(BACKLIGHT_RAW) check
unnecessary.
Relying on the cached native_available value not only is simpler, it will
also work correctly in cases where then native backlight registration was
skipped because of acpi_video_backlight_use_native() returning false.
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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Before this commit when we want userspace to use the acpi_video backlight
device we register both the GPU's native backlight device and acpi_video's
firmware acpi_video# backlight device. This relies on userspace preferring
firmware type backlight devices over native ones.
Registering 2 backlight devices for a single display really is
undesirable, don't register the GPU's native backlight device when
another backlight device should be used.
Changes in v2:
- Add nouveau_acpi_video_backlight_use_native() wrapper to avoid unresolved
symbol errors on non X86
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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This reverts commit 8cb339f1c1f04baede9d54c1e40ac96247a6393b as it
throws up a bunch of sparse warnings as reported by the kernel test
robot.
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/r/202209020044.CX2PfZzM-lkp@intel.com
Fixes: 8cb339f1c1f0 ("usb: gadget: udc-xilinx: replace memcpy with memcpy_toio")
Cc: stable@vger.kernel.org
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Piyush Mehta <piyush.mehta@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Vinod writes:
"soundwire fixes for v6.0
This contains two fixes to qcom sdw driver which resolve duplicate reset
control get and second one fixes device array indices."
* tag 'soundwire-6.0-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire:
soundwire: qcom: fix device status array range
soundwire: qcom: remove duplicate reset control get
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This reverts commit 2c87c6f9fbddc5b84d67b2fa3f432fcac6d99d93.
Meanwhile it turned out that the following commit is the proper
workaround for the issue that 2c87c6f9fbdd tries to address.
a3a57bf07de2 ("net: stmmac: work around sporadic tx issue on link-up")
It's nor clear why the to be reverted commit helped for one user,
for others it didn't make a difference.
Fixes: 2c87c6f9fbdd ("net: phy: meson-gxl: improve link-up behavior")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/8deeeddc-6b71-129b-1918-495a12dc11e3@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Return value directly from nsim_dev_reload_create()
instead of getting value from redundant variable ret.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Jinpeng Cui <cui.jinpeng2@zte.com.cn>
Link: https://lore.kernel.org/r/20220831154329.305372-1-cui.jinpeng2@zte.com.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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- Fix for a null pointer dereference (Lukasz)
- HDMI related quirk for ECS Liva Q2 with GLK graphics (Diego)
- Skip wm/ddb readout for disabled pipes (Ville)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/YxC3GmSOpDiZTdIJ@intel.com
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WMT cmd/event doesn't follow up the generic HCI cmd/event handling, it
needs constantly polling control pipe until the host received the WMT
event, thus, we should require to specifically acquire PM counter on the
USB to prevent the interface from entering auto suspended while WMT
cmd/event in progress.
Fixes: a1c49c434e15 ("Bluetooth: btusb: Add protocol support for MediaTek MT7668U USB devices")
Co-developed-by: Jing Cai <jing.cai@mediatek.com>
Signed-off-by: Jing Cai <jing.cai@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
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->f_mapping will do just fine
Reviewed-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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badly, at that...
Reviewed-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Commit 91be0bd6c6cf("vfio/pci: Have all VFIO PCI drivers store the
vfio_pci_core_device in drvdata") introduced a helper function to
retrieve the drvdata but used "hssi" instead of "hisi" for the
function prefix. Correct that and also while at it, moved the
function a bit down so that it's close to other hisi_ prefixed
functions.
No functional changes.
Signed-off-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20220831085943.993-1-shameerali.kolothum.thodi@huawei.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
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This counts the number of devices attached to a vfio_group, ie the number
of items in the group->device_list.
It is only read in vfio_pin_pages(), as some kind of protection against
limitations in type1.
However, with all the code cleanups in this area, now that
vfio_pin_pages() accepts a vfio_device directly it is redundant. All
drivers are already calling vfio_register_emulated_iommu_dev() which
directly creates a group specifically for the device and thus it is
guaranteed that there is a singleton group.
Leave a note in the comment about this requirement and remove the logic.
Reviewed-by: Yi Liu <yi.l.liu@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/0-v2-d4374a7bf0c9+c4-vfio_dev_counter_jgg@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
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This patch implements VFIO_DEVICE_FEATURE_LOW_POWER_ENTRY_WITH_WAKEUP
device feature. In the VFIO_DEVICE_FEATURE_LOW_POWER_ENTRY, if there is
any access for the VFIO device on the host side, then the device will
be moved out of the low power state without the user's guest driver
involvement. Once the device access has been finished, then the host
can move the device again into low power state. With the low power
entry happened through VFIO_DEVICE_FEATURE_LOW_POWER_ENTRY_WITH_WAKEUP,
the device will not be moved back into the low power state and
a notification will be sent to the user by triggering wakeup eventfd.
vfio_pci_core_pm_entry() will be called for both the variants of low
power feature entry so add an extra argument for wakeup eventfd context
and store locally in 'struct vfio_pci_core_device'.
For the entry happened without wakeup eventfd, all the exit related
handling will be done by the LOW_POWER_EXIT device feature only.
When the LOW_POWER_EXIT will be called, then the vfio core layer
vfio_device_pm_runtime_get() will increment the usage count and will
resume the device. In the driver runtime_resume callback, the
'pm_wake_eventfd_ctx' will be NULL. Then vfio_pci_core_pm_exit()
will call vfio_pci_runtime_pm_exit() and all the exit related handling
will be done.
For the entry happened with wakeup eventfd, in the driver resume
callback, eventfd will be triggered and all the exit related handling will
be done. When vfio_pci_runtime_pm_exit() will be called by
vfio_pci_core_pm_exit(), then it will return early.
But if the runtime suspend has not happened on the host side, then
all the exit related handling will be done in vfio_pci_core_pm_exit()
only.
Signed-off-by: Abhishek Sahu <abhsahu@nvidia.com>
Link: https://lore.kernel.org/r/20220829114850.4341-6-abhsahu@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
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Currently, if the runtime power management is enabled for vfio-pci
based devices in the guest OS, then the guest OS will do the register
write for PCI_PM_CTRL register. This write request will be handled in
vfio_pm_config_write() where it will do the actual register write of
PCI_PM_CTRL register. With this, the maximum D3hot state can be
achieved for low power. If we can use the runtime PM framework, then
we can achieve the D3cold state (on the supported systems) which will
help in saving maximum power.
1. D3cold state can't be achieved by writing PCI standard
PM config registers. This patch implements the following
newly added low power related device features:
- VFIO_DEVICE_FEATURE_LOW_POWER_ENTRY
- VFIO_DEVICE_FEATURE_LOW_POWER_EXIT
The VFIO_DEVICE_FEATURE_LOW_POWER_ENTRY feature will allow the
device to make use of low power platform states on the host
while the VFIO_DEVICE_FEATURE_LOW_POWER_EXIT will prevent
further use of those power states.
2. The vfio-pci driver uses runtime PM framework for low power entry and
exit. On the platforms where D3cold state is supported, the runtime
PM framework will put the device into D3cold otherwise, D3hot or some
other power state will be used.
There are various cases where the device will not go into the runtime
suspended state. For example,
- The runtime power management is disabled on the host side for
the device.
- The user keeps the device busy after calling LOW_POWER_ENTRY.
- There are dependent devices that are still in runtime active state.
For these cases, the device will be in the same power state that has
been configured by the user through PCI_PM_CTRL register.
3. The hypervisors can implement virtual ACPI methods. For example,
in guest linux OS if PCI device ACPI node has _PR3 and _PR0 power
resources with _ON/_OFF method, then guest linux OS invokes
the _OFF method during D3cold transition and then _ON during D0
transition. The hypervisor can tap these virtual ACPI calls and then
call the low power device feature IOCTL.
4. The 'pm_runtime_engaged' flag tracks the entry and exit to
runtime PM. This flag is protected with 'memory_lock' semaphore.
5. All the config and other region access are wrapped under
pm_runtime_resume_and_get() and pm_runtime_put(). So, if any
device access happens while the device is in the runtime suspended
state, then the device will be resumed first before access. Once the
access has been finished, then the device will again go into the
runtime suspended state.
6. The memory region access through mmap will not be allowed in the low
power state. Since __vfio_pci_memory_enabled() is a common function,
so check for 'pm_runtime_engaged' has been added explicitly in
vfio_pci_mmap_fault() to block only mmap'ed access.
Signed-off-by: Abhishek Sahu <abhsahu@nvidia.com>
Link: https://lore.kernel.org/r/20220829114850.4341-5-abhsahu@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
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This patch adds INTx handling during runtime suspend/resume.
All the suspend/resume related code for the user to put the device
into the low power state will be added in subsequent patches.
The INTx lines may be shared among devices. Whenever any INTx
interrupt comes for the VFIO devices, then vfio_intx_handler() will be
called for each device sharing the interrupt. Inside vfio_intx_handler(),
it calls pci_check_and_mask_intx() and checks if the interrupt has
been generated for the current device. Now, if the device is already
in the D3cold state, then the config space can not be read. Attempt
to read config space in D3cold state can cause system unresponsiveness
in a few systems. To prevent this, mask INTx in runtime suspend callback,
and unmask the same in runtime resume callback. If INTx has been already
masked, then no handling is needed in runtime suspend/resume callbacks.
'pm_intx_masked' tracks this, and vfio_pci_intx_mask() has been updated
to return true if the INTx vfio_pci_irq_ctx.masked value is changed
inside this function.
For the runtime suspend which is triggered for the no user of VFIO
device, the 'irq_type' will be VFIO_PCI_NUM_IRQS and these
callbacks won't do anything.
The MSI/MSI-X are not shared so similar handling should not be
needed for MSI/MSI-X. vfio_msihandler() triggers eventfd_signal()
without doing any device-specific config access. When the user performs
any config access or IOCTL after receiving the eventfd notification,
then the device will be moved to the D0 state first before
servicing any request.
Another option was to check this flag 'pm_intx_masked' inside
vfio_intx_handler() instead of masking the interrupts. This flag
is being set inside the runtime_suspend callback but the device
can be in non-D3cold state (for example, if the user has disabled D3cold
explicitly by sysfs, the D3cold is not supported in the platform, etc.).
Also, in D3cold supported case, the device will be in D0 till the
PCI core moves the device into D3cold. In this case, there is
a possibility that the device can generate an interrupt. Adding check
in the IRQ handler will not clear the IRQ status and the interrupt
line will still be asserted. This can cause interrupt flooding.
Signed-off-by: Abhishek Sahu <abhsahu@nvidia.com>
Link: https://lore.kernel.org/r/20220829114850.4341-4-abhsahu@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
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The vfio-pci based drivers will have runtime power management
support where the user can put the device into the low power state
and then PCI devices can go into the D3cold state. If the device is
in the low power state and the user issues any IOCTL, then the
device should be moved out of the low power state first. Once
the IOCTL is serviced, then it can go into the low power state again.
The runtime PM framework manages this with help of usage count.
One option was to add the runtime PM related API's inside vfio-pci
driver but some IOCTL (like VFIO_DEVICE_FEATURE) can follow a
different path and more IOCTL can be added in the future. Also, the
runtime PM will be added for vfio-pci based drivers variant currently,
but the other VFIO based drivers can use the same in the
future. So, this patch adds the runtime calls runtime-related API in
the top-level IOCTL function itself.
For the VFIO drivers which do not have runtime power management
support currently, the runtime PM API's won't be invoked. Only for
vfio-pci based drivers currently, the runtime PM API's will be invoked
to increment and decrement the usage count. In the vfio-pci drivers also,
the variant drivers can opt-out by incrementing the usage count during
device-open. The pm_runtime_resume_and_get() checks the device
current status and will return early if the device is already in the
ACTIVE state.
Taking this usage count incremented while servicing IOCTL will make
sure that the user won't put the device into the low power state when any
other IOCTL is being serviced in parallel. Let's consider the
following scenario:
1. Some other IOCTL is called.
2. The user has opened another device instance and called the IOCTL for
low power entry.
3. The low power entry IOCTL moves the device into the low power state.
4. The other IOCTL finishes.
If we don't keep the usage count incremented then the device
access will happen between step 3 and 4 while the device has already
gone into the low power state.
The pm_runtime_resume_and_get() will be the first call so its error
should not be propagated to user space directly. For example, if
pm_runtime_resume_and_get() can return -EINVAL for the cases where the
user has passed the correct argument. So the
pm_runtime_resume_and_get() errors have been masked behind -EIO.
Signed-off-by: Abhishek Sahu <abhsahu@nvidia.com>
Link: https://lore.kernel.org/r/20220829114850.4341-3-abhsahu@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
|
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This is the last sizable implementation in vfio_group_fops_unl_ioctl(),
move it to a function so vfio_group_fops_unl_ioctl() is emptied out.
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/8-v2-0f9e632d54fb+d6-vfio_ioctl_split_jgg@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
|
|
Make it clear that this is the body of the ioctl. Fold the locking into
the function so it is self contained like the other ioctls.
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/7-v2-0f9e632d54fb+d6-vfio_ioctl_split_jgg@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
|
|
No reason to split it up like this, just have one function to process the
ioctl. Move the lock into the function as well to avoid having a lockdep
annotation.
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/6-v2-0f9e632d54fb+d6-vfio_ioctl_split_jgg@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
|
|
No reason to split it up like this, just have one function to process the
ioctl.
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/5-v2-0f9e632d54fb+d6-vfio_ioctl_split_jgg@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
|
|
This makes the code clearer and replaces a few places trying to access a
flex array with an actual flex array.
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/4-v2-0f9e632d54fb+d6-vfio_ioctl_split_jgg@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
|
|
Done mechanically with:
$ git clang-format-14 -i --lines 675:1210 drivers/vfio/pci/vfio_pci_core.c
And manually reflow the multi-line comments clang-format doesn't fix.
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/3-v2-0f9e632d54fb+d6-vfio_ioctl_split_jgg@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
|
|
500 lines is a bit long for a single function, move the bodies of each
ioctl into separate functions and leave behind a switch statement to
dispatch them. This patch just adds the function declarations and does not
fix the indenting. The next patch will restore the indenting.
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/2-v2-0f9e632d54fb+d6-vfio_ioctl_split_jgg@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
|
|
This only returns 0 or -ERRNO, it should return int like all the other
ioctl dispatch functions.
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/1-v2-0f9e632d54fb+d6-vfio_ioctl_split_jgg@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
|
|
Only three of these are actually used, simplify to three inline functions,
and open code the if statement in vfio_pci_config.c.
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Link: https://lore.kernel.org/r/3-v2-1bd95d72f298+e0e-vfio_pci_priv_jgg@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
|
|
As this is part of the vfio_pci_core component it should be called
vfio_pci_core_register_dev_region() like everything else exported from
this module.
Suggested-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Link: https://lore.kernel.org/r/2-v2-1bd95d72f298+e0e-vfio_pci_priv_jgg@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
|
|
The header in include/linux should have only the exported interface for
other vfio_pci modules to use. Internal definitions for vfio_pci.ko
should be in a "priv" header along side the .c files.
Move the internal declarations out of vfio_pci_core.h. They either move to
vfio_pci_priv.h or to the C file that is the only user.
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Link: https://lore.kernel.org/r/1-v2-1bd95d72f298+e0e-vfio_pci_priv_jgg@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
|
|
Fixes for v6.0
- Fix for inconsistent indenting in function msm_dsi_dphy_timing_calc_v3.
This fixes a smatch warning reported by kbot
- Fix to make eDP the first connector in the connected list. This was
mainly done to address a screen corruption issue we were seeing on
sc7280 boards which have eDP as the primary display. The corruption
itself is from usermode but we decided to fix it this way because
things work correct with the primary display as the first one for
usermode
- Fix to populate intf_cfg correctly before calling reset_intf_cfg().
Without this, the display pipeline is not torn down correctly for
writeback
- Specify the correct number of DSI regulators for SDM660. It should
have been 1 but 2 was mentioned
- Specify the correct number of DSI regulators for MSM8996. It should
have been 3 but 2 was mentioned
- Fix for removing DP_RECOVERED_CLOCK_OUT_EN bit for tps4 link training
for DP. This was causing link training failures and hence no display
for a specific DP to HDMI cable on chromebooks
- Fix probe-deferral crash in gpu devfreq
- Fix gpu debugfs deadlock
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rob Clark <robdclark@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGtuY=jd44itwTkLXVqhnoKgY0BswPTrxDTxCiPG3WbmLA@mail.gmail.com
|
|
tools/testing/selftests/net/.gitignore
sort the net-next version and use it
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
amd-drm-fixes-6.0-2022-08-31:
amdgpu:
- FRU error message fix
- MES 11 updates
- DCN 3.2.x fixes
- DCN 3.1.4 fixes
- Fix possible use after free in CS IOCTL
- SMU 13.0.x fixes
- Fix iolink reporting on devices with direct connections to CPU
- GFX10 tap delay firmware fixes
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220831212312.5921-1-alexander.deucher@amd.com
|
|
Short summary of fixes pull:
* dma-buf/dma-resv: Fence-handling fix
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/Yw+pZnEbPxkJ1nHa@linux-uq9g.fritz.box
|
|
Address the following warning:
drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc.c:3508:9: warning: this ‘if’ clause does not guard... [-Wmisleading-indentation]
3508 | if (update_type != UPDATE_TYPE_FAST)
| ^~
drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc.c:3510:17: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘if’
3510 | if (update_type != UPDATE_TYPE_FAST)
| ^~
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
|
|
There are duplicated declarations of i, remove one of those.
Signed-off-by: Asher Song <Asher.Song@amd.com>
Reviewed-by: Guchun Chen <guchun.chen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
|
|
These structures are basically ported from MMSCH v3_0,
besides, added RB and RB4 enablement flag to support
unified queue
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Jane Jian <Jane.Jian@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
|
|
Enable unified queue support for sriov, abandon all previous
multi-queue settings
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Jane Jian <Jane.Jian@amd.com>
Reviewed-by: Ruijing Dong <ruijing.dong@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
|
|
Previously since vcn0/vcn1 are not enabled, loading firmware
is skipped. Now add firmware loading back since vcn0/vcn1
has already been enabled on sriov
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Jane Jian <Jane.Jian@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
|
Zong-Zhe Yang
Hans de Goede
Greg Kroah-Hartman
Heiner Kallweit
Jinpeng Cui
Dave Airlie
Sean Wang
Al Viro
Shameer Kolothum
Jason Gunthorpe
Abhishek Sahu
Jakub Kicinski
Hamza Mahfooz
Asher Song
Jane Jian