The BPF helper bpf_cgroup_from_id() calls kernfs_find_and_get_node_by_id()
which acquires kernfs_idr_lock, which is an non-raw non-IRQ-safe lock. This
can lead to deadlocks as bpf_cgroup_from_id() can be called from any BPF
programs including e.g. the ones that attach to functions which are holding
the scheduler rq lock.
Consider the following BPF program:
SEC("fentry/__set_cpus_allowed_ptr_locked")
int BPF_PROG(__set_cpus_allowed_ptr_locked, struct task_struct *p,
struct affinity_context *affn_ctx, struct rq *rq, struct rq_flags *rf)
{
struct cgroup *cgrp = bpf_cgroup_from_id(p->cgroups->dfl_cgrp->kn->id);
if (cgrp) {
bpf_printk("%d[%s] in %s", p->pid, p->comm, cgrp->kn->name);
bpf_cgroup_release(cgrp);
}
return 0;
}
__set_cpus_allowed_ptr_locked() is called with rq lock held and the above
BPF program calls bpf_cgroup_from_id() within leading to the following
lockdep warning:
=====================================================
WARNING: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected
6.7.0-rc3-work-00053-g07124366a1d7-dirty #147 Not tainted
-----------------------------------------------------
repro/1620 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire:
ffffffff833b3688 (kernfs_idr_lock){+.+.}-{2:2}, at: kernfs_find_and_get_node_by_id+0x1e/0x70
and this task is already holding:
ffff888237ced698 (&rq->__lock){-.-.}-{2:2}, at: task_rq_lock+0x4e/0xf0
which would create a new lock dependency:
(&rq->__lock){-.-.}-{2:2} -> (kernfs_idr_lock){+.+.}-{2:2}
...
Possible interrupt unsafe locking scenario:
CPU0 CPU1
---- ----
lock(kernfs_idr_lock);
local_irq_disable();
lock(&rq->__lock);
lock(kernfs_idr_lock);
<Interrupt>
lock(&rq->__lock);
*** DEADLOCK ***
...
Call Trace:
dump_stack_lvl+0x55/0x70
dump_stack+0x10/0x20
__lock_acquire+0x781/0x2a40
lock_acquire+0xbf/0x1f0
_raw_spin_lock+0x2f/0x40
kernfs_find_and_get_node_by_id+0x1e/0x70
cgroup_get_from_id+0x21/0x240
bpf_cgroup_from_id+0xe/0x20
bpf_prog_98652316e9337a5a___set_cpus_allowed_ptr_locked+0x96/0x11a
bpf_trampoline_6442545632+0x4f/0x1000
__set_cpus_allowed_ptr_locked+0x5/0x5a0
sched_setaffinity+0x1b3/0x290
__x64_sys_sched_setaffinity+0x4f/0x60
do_syscall_64+0x40/0xe0
entry_SYSCALL_64_after_hwframe+0x46/0x4e
Let's fix it by protecting kernfs_node and kernfs_root with RCU and making
kernfs_find_and_get_node_by_id() acquire rcu_read_lock() instead of
kernfs_idr_lock.
This adds an rcu_head to kernfs_node making it larger by 16 bytes on 64bit.
Combined with the preceding rearrange patch, the net increase is 8 bytes.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Andrea Righi <andrea.righi@canonical.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/20240109214828.252092-4-tj@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Moving .flags and .mode right below .hash makes kernfs_node smaller by 8
bytes on 64bit. To avoid creating a hole from 8 bytes alignment on 32bit
archs, .priv is moved below so that there are two 32bit pointers after the
64bit .id field.
v2: Updated to avoid size increase on 32bit noticed by Geert.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/ZZ7hwA18nfmFjYpj@slm.duckdns.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
- Fix unit test build regression fallout from global
"missing-prototypes" change
- Fix compatibility with devices that do not support interrupts
- Fix overflow when calculating the capacity of large interleave sets
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Merge tag 'cxl-fixes-6.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
Pull cxl fixes from Dan Williams:
"A build regression fix, a device compatibility fix, and an original
bug preventing creation of large (16 device) interleave sets:
- Fix unit test build regression fallout from global
"missing-prototypes" change
- Fix compatibility with devices that do not support interrupts
- Fix overflow when calculating the capacity of large interleave sets"
* tag 'cxl-fixes-6.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
cxl/region：Fix overflow issue in alloc_hpa()
cxl/pci: Skip irq features if MSI/MSI-X are not supported
tools/testing/nvdimm: Disable "missing prototypes / declarations" warnings
tools/testing/cxl: Disable "missing prototypes / declarations" warnings
exposure
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Merge tag 'locking_urgent_for_v6.8_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking fix from Borislav Petkov:
- Prevent an inconsistent futex operation leading to stale state
exposure
* tag 'locking_urgent_for_v6.8_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
futex: Prevent the reuse of stale pi_state
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Merge tag 'irq_urgent_for_v6.8_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fix from Borislav Petkov:
- Initialize the resend node of each IRQ descriptor, not only the first
one
* tag 'irq_urgent_for_v6.8_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
genirq: Initialize resend_node hlist for all interrupt descriptors
events in order to be able to compute correct averages
- Limit the duration of the clocksource watchdog checking interval as
too long intervals lead to wrongly marking the TSC as unstable
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Merge tag 'timers_urgent_for_v6.8_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Borislav Petkov:
- Preserve the number of idle calls and sleep entries across CPU
hotplug events in order to be able to compute correct averages
- Limit the duration of the clocksource watchdog checking interval as
too long intervals lead to wrongly marking the TSC as unstable
* tag 'timers_urgent_for_v6.8_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
tick/sched: Preserve number of idle sleeps across CPU hotplug events
clocksource: Skip watchdog check for large watchdog intervals
- Add detection for AMD's Zen5 generation CPUs and Intel's Clearwater
Forest CPU model number
- Make a stub function export non-GPL because it is part of the
paravirt alternatives and that can be used by non-GPL code
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Merge tag 'x86_urgent_for_v6.8_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Borislav Petkov:
- Make sure 32-bit syscall registers are properly sign-extended
- Add detection for AMD's Zen5 generation CPUs and Intel's Clearwater
Forest CPU model number
- Make a stub function export non-GPL because it is part of the
paravirt alternatives and that can be used by non-GPL code
* tag 'x86_urgent_for_v6.8_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/CPU/AMD: Add more models to X86_FEATURE_ZEN5
x86/entry/ia32: Ensure s32 is sign extended to s64
x86/cpu: Add model number for Intel Clearwater Forest processor
x86/CPU/AMD: Add X86_FEATURE_ZEN5
x86/paravirt: Make BUG_func() usable by non-GPL modules
When CONFIG_DEFERRED_STRUCT_PAGE_INIT is enabled, the initialization of
reserved pages may cause access of NODE_DATA() with invalid nid and crash.
Add a fall back to early_pfn_to_nid() in memmap_init_reserved_pages() to
ensure a valid node id is always passed to init_reserved_page().
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Merge tag 'fixes-2024-01-28' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock
Pull memblock fix from Mike Rapoport:
"Fix crash when reserved memory is not added to memory.
When CONFIG_DEFERRED_STRUCT_PAGE_INIT is enabled, the initialization
of reserved pages may cause access of NODE_DATA() with invalid nid and
crash.
Add a fall back to early_pfn_to_nid() in memmap_init_reserved_pages()
to ensure a valid node id is always passed to init_reserved_page()"
* tag 'fixes-2024-01-28' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock:
memblock: fix crash when reserved memory is not added to memory
Highlights:
- WMI bus driver fixes
- Second attempt (previously reverted) at P2SB PCI rescan deadlock fix
- AMD PMF driver improvements
- MAINTAINERS updates
- Misc. other small fixes and hw-id additions
The following is an automated git shortlog grouped by driver:
MAINTAINERS:
- remove defunct acpi4asus project info from asus notebooks section
- add Luke Jones as maintainer for asus notebooks
- Remove Perry Yuan as DELL WMI HARDWARE PRIVACY SUPPORT maintainer
intel-uncore-freq:
- Fix types in sysfs callbacks
intel-wmi-sbl-fw-update:
- Fix function name in error message
p2sb:
- Use pci_resource_n() in p2sb_read_bar0()
- Allow p2sb_bar() calls during PCI device probe
platform/mellanox:
- mlxbf-pmc: Fix offset calculation for crspace events
- mlxbf-tmfifo: Drop Tx network packet when Tx TmFIFO is full
platform/x86/amd/pmf:
- Fix memory leak in amd_pmf_get_pb_data()
- Get ambient light information from AMD SFH driver
- Get Human presence information from AMD SFH driver
platform/x86/intel/ifs:
- Call release_firmware() when handling errors.
silicom-platform:
- Add missing "Description:" for power_cycle sysfs attr
touchscreen_dmi:
- Add info for the TECLAST X16 Plus tablet
wmi:
- Fix wmi_dev_probe()
- Fix notify callback locking
- Decouple legacy WMI notify handlers from wmi_block_list
- Return immediately if an suitable WMI event is found
- Fix error handling in legacy WMI notify handler functions
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Merge tag 'platform-drivers-x86-v6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver fixes from Hans de Goede:
- WMI bus driver fixes
- Second attempt (previously reverted) at P2SB PCI rescan deadlock fix
- AMD PMF driver improvements
- MAINTAINERS updates
- Misc other small fixes and hw-id additions
* tag 'platform-drivers-x86-v6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86: touchscreen_dmi: Add info for the TECLAST X16 Plus tablet
platform/x86/intel/ifs: Call release_firmware() when handling errors.
platform/x86/amd/pmf: Fix memory leak in amd_pmf_get_pb_data()
platform/x86/amd/pmf: Get ambient light information from AMD SFH driver
platform/x86/amd/pmf: Get Human presence information from AMD SFH driver
platform/mellanox: mlxbf-pmc: Fix offset calculation for crspace events
platform/mellanox: mlxbf-tmfifo: Drop Tx network packet when Tx TmFIFO is full
MAINTAINERS: remove defunct acpi4asus project info from asus notebooks section
MAINTAINERS: add Luke Jones as maintainer for asus notebooks
MAINTAINERS: Remove Perry Yuan as DELL WMI HARDWARE PRIVACY SUPPORT maintainer
platform/x86: silicom-platform: Add missing "Description:" for power_cycle sysfs attr
platform/x86: intel-wmi-sbl-fw-update: Fix function name in error message
platform/x86: p2sb: Use pci_resource_n() in p2sb_read_bar0()
platform/x86: p2sb: Allow p2sb_bar() calls during PCI device probe
platform/x86: intel-uncore-freq: Fix types in sysfs callbacks
platform/x86: wmi: Fix wmi_dev_probe()
platform/x86: wmi: Fix notify callback locking
platform/x86: wmi: Decouple legacy WMI notify handlers from wmi_block_list
platform/x86: wmi: Return immediately if an suitable WMI event is found
platform/x86: wmi: Fix error handling in legacy WMI notify handler functions
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Merge tag 'loongarch-fixes-6.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
Pull LoongArch fixes from Huacai Chen:
"Fix boot failure on machines with more than 8 nodes, and fix two build
errors about KVM"
* tag 'loongarch-fixes-6.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
LoongArch: KVM: Add returns to SIMD stubs
LoongArch: KVM: Fix build due to API changes
LoongArch/smp: Call rcutree_report_cpu_starting() at tlb_init()
* Fix read only mounts when using fsopen mount API
Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>
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Merge tag 'xfs-6.8-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fix from Chandan Babu:
- Fix read only mounts when using fsopen mount API
* tag 'xfs-6.8-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: read only mounts with fsopen mount API are busted
- fix for REQ_OP_FLUSH usage; this fixes filesystems going read only
with -EOPNOTSUPP from the block layer.
(this really should have gone in with the block layer patch causing
the -EOPNOTSUPP, or should have gone in before).
- fix an allocation in non-sleepable context
- fix one source of srcu lock latency, on devices with terrible discard
latency
- fix a reattach_inode() issue in fsck
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Merge tag 'bcachefs-2024-01-26' of https://evilpiepirate.org/git/bcachefs
Pull bcachefs fixes from Kent Overstreet:
- fix for REQ_OP_FLUSH usage; this fixes filesystems going read only
with -EOPNOTSUPP from the block layer.
(this really should have gone in with the block layer patch causing
the -EOPNOTSUPP, or should have gone in before).
- fix an allocation in non-sleepable context
- fix one source of srcu lock latency, on devices with terrible discard
latency
- fix a reattach_inode() issue in fsck
* tag 'bcachefs-2024-01-26' of https://evilpiepirate.org/git/bcachefs:
bcachefs: __lookup_dirent() works in snapshot, not subvol
bcachefs: discard path uses unlock_long()
bcachefs: fix incorrect usage of REQ_OP_FLUSH
bcachefs: Add gfp flags param to bch2_prt_task_backtrace()
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Merge tag '6.8-rc2-smb3-server-fixes' of git://git.samba.org/ksmbd
Pull smb server fixes from Steve French:
- Fix netlink OOB
- Minor kernel doc fix
* tag '6.8-rc2-smb3-server-fixes' of git://git.samba.org/ksmbd:
ksmbd: fix global oob in ksmbd_nl_policy
smb: Fix some kernel-doc comments
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Merge tag '6.8-rc1-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client fixes from Steve French:
"Nine cifs/smb client fixes
- Four network error fixes (three relating to replays of requests
that need to be retried, and one fixing some places where we were
returning the wrong rc up the stack on network errors)
- Two multichannel fixes including locking fix and case where subset
of channels need reconnect
- netfs integration fixup: share remote i_size with netfslib
- Two small cleanups (one for addressing a clang warning)"
* tag '6.8-rc1-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: fix stray unlock in cifs_chan_skip_or_disable
cifs: set replay flag for retries of write command
cifs: commands that are retried should have replay flag set
cifs: helper function to check replayable error codes
cifs: translate network errors on send to -ECONNABORTED
cifs: cifs_pick_channel should try selecting active channels
cifs: Share server EOF pos with netfslib
smb: Work around Clang __bdos() type confusion
smb: client: delete "true", "false" defines
If we still own the FPU after initializing fcr31, when we are preempted
the dirty value in the FPU will be read out and stored into fcr31,
clobbering our setting. This can cause an improper floating-point
environment after execve(). For example:
zsh% cat measure.c
#include <fenv.h>
int main() { return fetestexcept(FE_INEXACT); }
zsh% cc measure.c -o measure -lm
zsh% echo $((1.0/3)) # raising FE_INEXACT
0.33333333333333331
zsh% while ./measure; do ; done
(stopped in seconds)
Call lose_fpu(0) before setting fcr31 to prevent this.
Closes: https://lore.kernel.org/linux-mips/7a6aa1bbdbbe2e63ae96ff163fab0349f58f1b9e.camel@xry111.site/
Fixes: 9b26616c8d ("MIPS: Respect the ISA level in FCSR handling")
Cc: stable@vger.kernel.org
Signed-off-by: Xi Ruoyao <xry111@xry111.site>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Commit 61167ad5fecd("mm: pass nid to reserve_bootmem_region()") reveals
that reserved memblock regions have no valid node id set, just set it
right since loongson64 firmware makes it clear in memory layout info.
This works around booting failure on 3A1000+ since commit 61167ad5fe
("mm: pass nid to reserve_bootmem_region()") under
CONFIG_DEFERRED_STRUCT_PAGE_INIT.
Signed-off-by: Huang Pei <huangpei@loongson.cn>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
- Fix an incorrect link_power_management_policy sysfs attribute
value. We were previously using the same attribute value for
two different LPM policies (me).
- Add a ASMedia ASM1166 quirk. The SATA host controller always
reports that it has 32 ports, even though it only has six ports.
Add a quirk that overrides the value reported by the controller
(Conrad).
- Add a ASMedia ASM1061 quirk. The SATA host controller completely
ignores the upper 21 bits of the DMA address. This causes IOMMU
error events when a (valid) DMA address actually has any of the
upper 21 bits set. Add a quirk that limits the dma_mask to
43-bits (Lennert).
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Merge tag 'ata-6.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux
Pull ata updates from Niklas Cassel:
- Fix an incorrect link_power_management_policy sysfs attribute value.
We were previously using the same attribute value for two different
LPM policies (me)
- Add a ASMedia ASM1166 quirk.
The SATA host controller always reports that it has 32 ports, even
though it only has six ports. Add a quirk that overrides the value
reported by the controller (Conrad)
- Add a ASMedia ASM1061 quirk.
The SATA host controller completely ignores the upper 21 bits of the
DMA address. This causes IOMMU error events when a (valid) DMA
address actually has any of the upper 21 bits set. Add a quirk that
limits the dma_mask to 43-bits (Lennert)
* tag 'ata-6.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
ahci: add 43-bit DMA address quirk for ASMedia ASM1061 controllers
ahci: asm1166: correct count of reported ports
ata: libata-sata: improve sysfs description for ATA_LPM_UNKNOWN
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Merge tag 'block-6.8-2024-01-26' of git://git.kernel.dk/linux
Pull block fixes from Jens Axboe:
- RCU warning fix for md (Mikulas)
- Fix for an aoe issue that lockdep rightfully complained about
(Maksim)
- Fix for an error code change in partitioning that caused a regression
with some tools (Li)
- Fix for a data direction warning with bi-direction commands
(Christian)
* tag 'block-6.8-2024-01-26' of git://git.kernel.dk/linux:
md: fix a suspicious RCU usage warning
aoe: avoid potential deadlock at set_capacity
block: Fix WARNING in _copy_from_iter
block: Move checking GENHD_FL_NO_PART to bdev_add_partition()
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Merge tag 'io_uring-6.8-2024-01-26' of git://git.kernel.dk/linux
Pull io_uring fix from Jens Axboe:
"Just a single tweak to the newly added IORING_OP_FIXED_FD_INSTALL from
Paul, ensuring it goes via the audit path and playing it safe by
excluding it from using registered creds"
* tag 'io_uring-6.8-2024-01-26' of git://git.kernel.dk/linux:
io_uring: enable audit and restrict cred override for IORING_OP_FIXED_FD_INSTALL
Remove some dead code from the Intel powerclamp thermal control
driver (Srinivas Pandruvada).
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Merge tag 'thermal-6.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control update from Rafael Wysocki:
"Remove some dead code from the Intel powerclamp thermal control driver
(Srinivas Pandruvada)"
* tag 'thermal-6.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal: intel: powerclamp: Remove dead code for target mwait value
- Fix the handling of scaling_max/min_freq sysfs attributes in the AMD
P-state cpufreq driver (Mario Limonciello).
- Make the intel_pstate cpufreq driver avoid unnecessary computation of
the HWP performance level corresponding to a given frequency in the
cases when it is known already, which also helps to avoid reducing
the maximum CPU capacity artificially on some systems (Rafael J.
Wysocki).
- Fix compilation of the cpupower utility when CFLAGS is passed as a
make argument for cpupower, but it does not take effect as expected
due to mishandling (Stanley Chan).
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Merge tag 'pm-6.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix two cpufreq drivers and the cpupower utility.
Specifics:
- Fix the handling of scaling_max/min_freq sysfs attributes in the
AMD P-state cpufreq driver (Mario Limonciello)
- Make the intel_pstate cpufreq driver avoid unnecessary computation
of the HWP performance level corresponding to a given frequency in
the cases when it is known already, which also helps to avoid
reducing the maximum CPU capacity artificially on some systems
(Rafael J. Wysocki)
- Fix compilation of the cpupower utility when CFLAGS is passed as a
make argument for cpupower, but it does not take effect as expected
due to mishandling (Stanley Chan)"
* tag 'pm-6.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq/amd-pstate: Fix setting scaling max/min freq values
cpufreq: intel_pstate: Refine computation of P-state for given frequency
tools cpupower bench: Override CFLAGS assignments
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Merge tag 'docs-6.8-fixes' of git://git.lwn.net/linux
Pull documentation fixes from Jonathan Corbet:
"A handful of relatively boring documentation fixes"
* tag 'docs-6.8-fixes' of git://git.lwn.net/linux:
docs: admin-guide: remove obsolete advice related to SLAB allocator
doc: admin-guide/kernel-parameters: remove useless comment
docs/accel: correct links to mailing list archives
docs/sphinx: Fix TOC scroll hack for the home page
fb:
- fix simpledrm/i915 regression by reverting change
scheduler:
- fix regression affecting amdgpu users due to sched draining
nouveau:
- revert 6.7 deadlock fix as it has side effects
dp:
- fix documentation warning
ttm:
- fix dummy page read on some platforms
bridge:
- anx7625 suspend fix
- sii902x: fix probing and audio registration
- parade-ps8640: fix suspend of bridge, aux fixes
- samsung-dsim: avoid using FORCE_STOP_STATE
panel:
- simple add missing bus flags
- fix samsung-s6d7aa0 flags
amdgpu:
- AC/DC power supply tracking fix
- Don't show invalid vram vendor data
- SMU 13.0.x fixes
- GART fix for umr on systems without VRAM
- GFX 10/11 UNORD_DISPATCH fixes
- IPS display fixes (required for S0ix on some platforms)
- Misc fixes
i915:
- DSI sequence revert to fix GitLab #10071 and DP test-pattern fix
- Drop -Wstringop-overflow (broken on GCC11)
ivpu:
- fix recovery/reset support
- improve submit ioctl stability
- fix dev open/close races on unbind
- PLL disable reset fix
- deprecate context priority param
- improve debug buffer logging
- disable buffer sharing across VPU contexts
- free buffer sgt on unbind
- fix missing lock around shmem vmap
- add better boot diagnostics
- add more debug prints around mapping
- dump MMU events in case of timeout
v3d:
- NULL ptr dereference fix
exynos:
- fix stack usage
- fix incorrect type
- fix dt typo
- fix gsc runtime resume
xe:
- Make an ops struct static
- Fix an implicit 0 to NULL conversion
- A couple of 32-bit fixes
- A migration coherency fix for Lunar Lake.
- An error path vm id leak fix
- Remove PVC references in kunit tests
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Merge tag 'drm-fixes-2024-01-27' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Lots going on for rc2, ivpu has a bunch of stabilisation and debugging
work, then amdgpu and xe are the main fixes. i915, exynos have a few,
then some misc panel and bridge fixes.
Worth mentioning are three regressions. One of the nouveau fixes in
6.7 for a serious deadlock had side effects, so I guess we will bring
back the deadlock until I can figure out what should be done properly.
There was a scheduler regression vs amdgpu which was reported in a few
places and is now fixed. There was an i915 vs simpledrm problem
resulting in black screens, that is reverted also.
I'll be working on a proper nouveau fix, it kinda looks like one of
those cases where someone tried to use an atomic where they should
have probably used a lock, but I'll see.
fb:
- fix simpledrm/i915 regression by reverting change
scheduler:
- fix regression affecting amdgpu users due to sched draining
nouveau:
- revert 6.7 deadlock fix as it has side effects
dp:
- fix documentation warning
ttm:
- fix dummy page read on some platforms
bridge:
- anx7625 suspend fix
- sii902x: fix probing and audio registration
- parade-ps8640: fix suspend of bridge, aux fixes
- samsung-dsim: avoid using FORCE_STOP_STATE
panel:
- simple add missing bus flags
- fix samsung-s6d7aa0 flags
amdgpu:
- AC/DC power supply tracking fix
- Don't show invalid vram vendor data
- SMU 13.0.x fixes
- GART fix for umr on systems without VRAM
- GFX 10/11 UNORD_DISPATCH fixes
- IPS display fixes (required for S0ix on some platforms)
- Misc fixes
i915:
- DSI sequence revert to fix GitLab #10071 and DP test-pattern fix
- Drop -Wstringop-overflow (broken on GCC11)
ivpu:
- fix recovery/reset support
- improve submit ioctl stability
- fix dev open/close races on unbind
- PLL disable reset fix
- deprecate context priority param
- improve debug buffer logging
- disable buffer sharing across VPU contexts
- free buffer sgt on unbind
- fix missing lock around shmem vmap
- add better boot diagnostics
- add more debug prints around mapping
- dump MMU events in case of timeout
v3d:
- NULL ptr dereference fix
exynos:
- fix stack usage
- fix incorrect type
- fix dt typo
- fix gsc runtime resume
xe:
- Make an ops struct static
- Fix an implicit 0 to NULL conversion
- A couple of 32-bit fixes
- A migration coherency fix for Lunar Lake.
- An error path vm id leak fix
- Remove PVC references in kunit tests"
* tag 'drm-fixes-2024-01-27' of git://anongit.freedesktop.org/drm/drm: (66 commits)
Revert "nouveau: push event block/allowing out of the fence context"
drm: bridge: samsung-dsim: Don't use FORCE_STOP_STATE
drm/sched: Drain all entities in DRM sched run job worker
drm/amd/display: "Enable IPS by default"
drm/amd: Add a DC debug mask for IPS
drm/amd/display: Disable ips before dc interrupt setting
drm/amd/display: Replay + IPS + ABM in Full Screen VPB
drm/amd/display: Add IPS checks before dcn register access
drm/amd/display: Add Replay IPS register for DMUB command table
drm/amd/display: Allow IPS2 during Replay
drm/amdgpu/gfx11: set UNORD_DISPATCH in compute MQDs
drm/amdgpu/gfx10: set UNORD_DISPATCH in compute MQDs
drm/amd/amdgpu: Assign GART pages to AMD device mapping
drm/amd/pm: Fetch current power limit from FW
drm/amdgpu: Fix null pointer dereference
drm/amdgpu: Show vram vendor only if available
drm/amd/pm: update the power cap setting
drm/amdgpu: Avoid fetching vram vendor information
drm/amdgpu/pm: Fix the power source flag error
drm/amd/display: Fix uninitialized variable usage in core_link_ 'read_dpcd() & write_dpcd()' functions
...
Just one patch this time, adding Andreas Larsson as co-maintainer
for arch/sparc. He is volunteering to help since David Miller
has become much less active over the past few years.
In turn, I'm helping Andreas get set up as a new maintainer,
starting with the entry in the MAINTAINERS file.
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Merge tag 'asm-generic-6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull asm-generic update from Arnd Bergmann:
"Just one patch this time, adding Andreas Larsson as co-maintainer for
arch/sparc. He is volunteering to help since David Miller has become
much less active over the past few years.
In turn, I'm helping Andreas get set up as a new maintainer, starting
with the entry in the MAINTAINERS file"
* tag 'asm-generic-6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
MAINTAINERS: Add Andreas Larsson as co-maintainer for arch/sparc
There are a couple of devicetree fixes for samsung, riscv/sophgo, and for
TPM device nodes on a couple of platforms.
Both the Arm FF-A and the SCMI firmware drivers get a number of code fixes,
addressing minor implementation bugs and compatibility with firmware
implementations. Most of these bugs relate to the usage of xarray and
rwlock structures and are fixed by Cristian Marussi.
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Merge tag 'arm-fixes-6.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull arm SoC fixes from Arnd Bergmann:
"There are a couple of devicetree fixes for samsung, riscv/sophgo, and
for TPM device nodes on a couple of platforms.
Both the Arm FF-A and the SCMI firmware drivers get a number of code
fixes, addressing minor implementation bugs and compatibility with
firmware implementations. Most of these bugs relate to the usage of
xarray and rwlock structures and are fixed by Cristian Marussi"
* tag 'arm-fixes-6.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
riscv: dts: sophgo: separate sg2042 mtime and mtimecmp to fit aclint format
arm64: dts: Fix TPM schema violations
ARM: dts: Fix TPM schema violations
ARM: dts: exynos4212-tab3: add samsung,invert-vclk flag to fimd
arm64: dts: exynos: gs101: comply with the new cmu_misc clock names
firmware: arm_ffa: Handle partitions setup failures
firmware: arm_ffa: Use xa_insert() and check for result
firmware: arm_ffa: Simplify ffa_partitions_cleanup()
firmware: arm_ffa: Check xa_load() return value
firmware: arm_ffa: Add missing rwlock_init() for the driver partition
firmware: arm_ffa: Add missing rwlock_init() in ffa_setup_partitions()
firmware: arm_scmi: Fix the clock protocol supported version
firmware: arm_scmi: Fix the clock protocol version for v3.2
firmware: arm_scmi: Use xa_insert() when saving raw queues
firmware: arm_scmi: Use xa_insert() to store opps
firmware: arm_scmi: Replace asm-generic/bug.h with linux/bug.h
firmware: arm_scmi: Check mailbox/SMT channel for consistency
As well as a few device IDs and the usual scattering of driver specific
fixes this contains a couple of core things. One is a missed case in
error handling, the other patch is a change from me raising the number
of chip selects allowed by the newly added multi chip select support
patches to resolve problems seen on several systems that exceeded the
limit. This is not a real solution to the issue but rather just a
change to avoid disruption to users, one of the options I am considering
is just sending a revert of those changes if we can't come up with
something sensible.
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Merge tag 'spi-fix-v6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"As well as a few device IDs and the usual scattering of driver
specific fixes this contains a couple of core things.
One is a missed case in error handling, the other patch is a change
from me raising the number of chip selects allowed by the newly added
multi chip select support patches to resolve problems seen on several
systems that exceeded the limit.
This is not a real solution to the issue but rather just a change to
avoid disruption to users, one of the options I am considering is just
sending a revert of those changes if we can't come up with something
sensible"
* tag 'spi-fix-v6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: fix finalize message on error return
spi: cs42l43: Handle error from devm_pm_runtime_enable
spi: Raise limit on number of chip selects
spi: hisi-sfc-v3xx: Return IRQ_NONE if no interrupts were detected
spi: spi-cadence: Reverse the order of interleaved write and read operations
spi: spi-imx: Use dev_err_probe for failed DMA channel requests
spi: bcm-qspi: fix SFDP BFPT read by usig mspi read
spi: intel-pci: Add support for Arrow Lake SPI serial flash
spi: intel-pci: Remove Meteor Lake-S SoC PCI ID from the list
- add a quirk to GPIO ACPI handling to ignore touchpad wakeups
on GPD G1619-04
- clear interrupt status bits (that may have been set before enabling
the interrupts) after setting the interrupt type in gpio-eic-sprd
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Merge tag 'gpio-fixes-for-v6.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- add a quirk to GPIO ACPI handling to ignore touchpad wakeups on GPD
G1619-04
- clear interrupt status bits (that may have been set before enabling
the interrupts) after setting the interrupt type in gpio-eic-sprd
* tag 'gpio-fixes-for-v6.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: eic-sprd: Clear interrupt after set the interrupt type
gpiolib: acpi: Ignore touchpad wakeup on GPD G1619-04
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Merge tag 'media/v6.8-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
- remove K3 DT prefix from wave5
- vb2 core: fix missing caps on VIDIO_CREATE_BUFS under certain
circumstances
- videobuf2: Stop direct calls to queue num_buffers field
* tag 'media/v6.8-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
media: vb2: refactor setting flags and caps, fix missing cap
media: media videobuf2: Stop direct calls to queue num_buffers field
media: chips-media: wave5: Remove K3 References
dt-bindings: media: Remove K3 Family Prefix from Compatible
Add touch screen info for TECLAST X16 Plus tablet.
Signed-off-by: Phoenix Chen <asbeltogf@gmail.com>
Link: https://lore.kernel.org/r/20240126095308.5042-1-asbeltogf@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Missing release_firmware() due to error handling blocked any future image
loading.
Fix the return code and release_fiwmare() to release the bad image.
Fixes: 25a76dbb36 ("platform/x86/intel/ifs: Validate image size")
Reported-by: Pengfei Xu <pengfei.xu@intel.com>
Signed-off-by: Jithu Joseph <jithu.joseph@intel.com>
Signed-off-by: Ashok Raj <ashok.raj@intel.com>
Tested-by: Pengfei Xu <pengfei.xu@intel.com>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20240125082254.424859-2-ashok.raj@intel.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
amd_pmf_get_pb_data() will allocate memory for the policy buffer,
but does not free it if copy_from_user() fails. This leads to a memory
leak.
Fixes: 10817f28e5 ("platform/x86/amd/pmf: Add capability to sideload of policy binary")
Reviewed-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Signed-off-by: Cong Liu <liucong2@kylinos.cn>
Link: https://lore.kernel.org/r/20240124012939.6550-1-liucong2@kylinos.cn
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
AMD SFH driver has APIs defined to export the ambient light information;
use this within the PMF driver to send inputs to the PMF TA, so that PMF
driver can enact to the actions coming from the TA.
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20240123141458.3715211-2-Shyam-sundar.S-k@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
AMD SFH driver has APIs defined to export the human presence information;
use this within the PMF driver to send inputs to the PMF TA, so that PMF
driver can enact to the actions coming from the TA.
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20240123141458.3715211-1-Shyam-sundar.S-k@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Merge cpufreq fixes for 6.8-rc2:
- Fix the handling of scaling_max/min_freq sysfs attributes in the AMD
P-state cpufreq driver (Mario Limonciello).
- Make the intel_pstate cpufreq driver avoid unnecessary computation of
the HWP performance level corresponding to a given frequency in the
cases when it is known already, which also helps to avoid reducing
the maximum CPU capacity artificially on some systems (Rafael J.
Wysocki).
* pm-cpufreq:
cpufreq/amd-pstate: Fix setting scaling max/min freq values
cpufreq: intel_pstate: Refine computation of P-state for given frequency
- The FORCE_STOP_STATE bit is ineffective for forcing DSI link into LP-11 mode,
causing timing issues and potential bridge failures.
This patch reverts previous commits and corrects this issue.
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Merge tag 'drm-misc-fixes-for-v6.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-fixes
One regression fixup to samsung-dsim.c module
- The FORCE_STOP_STATE bit is ineffective for forcing DSI link into LP-11 mode,
causing timing issues and potential bridge failures.
This patch reverts previous commits and corrects this issue.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Inki Dae <inki.dae@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240126141130.15512-1-inki.dae@samsung.com
This reverts commit eacabb5462.
This commit causes some regressions in desktop usage, this will
reintroduce the original deadlock in DRI_PRIME situations, I've
got an idea to fix it by offloading to a workqueue in a different
spot, however this code has a race condition where we sometimes
miss interrupts so I'd like to fix that as well.
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
suspend fix for the anx7625 bridge, a revert to fix an initialization
order bug between i915 and simpledrm and a documentation warning fix for
dp_mst.
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Merge tag 'drm-misc-fixes-2024-01-26' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
Plenty of ivpu fixes to improve the general stability and debugging, a
suspend fix for the anx7625 bridge, a revert to fix an initialization
order bug between i915 and simpledrm and a documentation warning fix for
dp_mst.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <mripard@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/tp77e5fokigup6cgmpq6mtg46kzdw2dpze6smpnwfoml4kmwpq@bo6mbkezpkle
Dave has not been very active on arch/sparc for the past two years.
I have been contributing to the SPARC32 port as well as maintaining
out-of-tree SPARC32 patches for LEON3/4/5 (SPARCv8 with CAS support)
since 2012. I am willing to step up as an arch/sparc (co-)maintainer.
For recent discussions on the matter, see [1] and [2].
[1] https://lore.kernel.org/r/20230713075235.2164609-1-u.kleine-koenig@pengutronix.de
[2] https://lore.kernel.org/r/20231209105816.GA1085691@ravnborg.org/
Signed-off-by: Andreas Larsson <andreas@gaisler.com>
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Acked-by: Jose E. Marchesi <jose.marchesi@oracle.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The FORCE_STOP_STATE bit is unsuitable to force the DSI link into LP-11
mode. It seems the bridge internally queues DSI packets and when the
FORCE_STOP_STATE bit is cleared, they are sent in close succession
without any useful timing (this also means that the DSI lanes won't go
into LP-11 mode). The length of this gibberish varies between 1ms and
5ms. This sometimes breaks an attached bridge (TI SN65DSI84 in this
case). In our case, the bridge will fail in about 1 per 500 reboots.
The FORCE_STOP_STATE handling was introduced to have the DSI lanes in
LP-11 state during the .pre_enable phase. But as it turns out, none of
this is needed at all. Between samsung_dsim_init() and
samsung_dsim_set_display_enable() the lanes are already in LP-11 mode.
The code as it was before commit 20c827683d ("drm: bridge:
samsung-dsim: Fix init during host transfer") and 0c14d31306 ("drm:
bridge: samsung-dsim: Fix i.MX8M enable flow to meet spec") was correct
in this regard.
This patch basically reverts both commits. It was tested on an i.MX8M
SoC with an SN65DSI84 bridge. The signals were probed and the DSI
packets were decoded during initialization and link start-up. After this
patch the first DSI packet on the link is a VSYNC packet and the timing
is correct.
Command mode between .pre_enable and .enable was also briefly tested by
a quick hack. There was no DSI link partner which would have responded,
but it was made sure the DSI packet was send on the link. As a side
note, the command mode seems to just work in HS mode. I couldn't find
that the bridge will handle commands in LP mode.
Fixes: 20c827683d ("drm: bridge: samsung-dsim: Fix init during host transfer")
Fixes: 0c14d31306 ("drm: bridge: samsung-dsim: Fix i.MX8M enable flow to meet spec")
Signed-off-by: Michael Walle <mwalle@kernel.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231113164344.1612602-1-mwalle@kernel.org
Change the timer layout in the dtb to fit the format that needed by
the SBI.
Fixes: 967a94a92a ("riscv: dts: add initial Sophgo SG2042 SoC device tree")
Reviewed-by: Chen Wang <unicorn_wang@outlook.com>
Reviewed-by: Guo Ren <guoren@kernel.org>
Signed-off-by: Inochi Amaoto <inochiama@outlook.com>
Signed-off-by: Chen Wang <unicorn_wang@outlook.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Lantiq uses a common kernel config for devices with 24Kc and 34Kc cores.
The changes made previously to add support for interrupts on all cores
work on 24Kc platforms with SMP disabled and 34Kc platforms with SMP
enabled. This patch fixes boot issues on Danube (single core 24Kc) with
SMP enabled.
Fixes: 730320fd77 ("MIPS: lantiq: enable all hardware interrupts on second VPE")
Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Commit 61167ad5fecd("mm: pass nid to reserve_bootmem_region()") reveals
that reserved memblock regions have no valid node id set, just set it
right since loongson64 firmware makes it clear in memory layout info.
This works around booting failure on 3A1000+ since commit 61167ad5fe
("mm: pass nid to reserve_bootmem_region()") under
CONFIG_DEFERRED_STRUCT_PAGE_INIT.
Signed-off-by: Huang Pei <huangpei@loongson.cn>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
"cpu_probe" is called both by BP and APs, but reserving exception vector
(like 0x0-0x1000) called by "cpu_probe" need once and calling on APs is
too late since memblock is unavailable at that time.
So, reserve exception vector ONLY by BP.
Suggested-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Huang Pei <huangpei@loongson.cn>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Most of the symbols for which we do not have a prototype can actually be
made static and for the few that cannot, there is already a declaration
in a header for it.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
The stubs for kvm_own/lsx()/kvm_own_lasx() when CONFIG_CPU_HAS_LSX or
CONFIG_CPU_HAS_LASX is not defined should have a return value since they
return an int, so add "return -EINVAL;" to the stubs.
Fixes the build error:
In file included from ../arch/loongarch/include/asm/kvm_csr.h:12,
from ../arch/loongarch/kvm/interrupt.c:8:
../arch/loongarch/include/asm/kvm_vcpu.h: In function 'kvm_own_lasx':
../arch/loongarch/include/asm/kvm_vcpu.h:73:39: error: no return statement in function returning non-void [-Werror=return-type]
73 | static inline int kvm_own_lasx(struct kvm_vcpu *vcpu) { }
Fixes: db1ecca22e ("LoongArch: KVM: Add LSX (128bit SIMD) support")
Fixes: 118e10cd89 ("LoongArch: KVM: Add LASX (256bit SIMD) support")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Commit 8569992d64 ("KVM: Use gfn instead of hva for
mmu_notifier_retry") replaces mmu_invalidate_retry_hva() usage with
mmu_invalidate_retry_gfn() for X86, LoongArch also need similar changes
to fix build.
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
