Moving the driver-specific mmap code into a GEM object function allows
for using DRM helpers for various mmap callbacks.
The respective msm functions are being removed. The file_operations
structure fops is now being created by the helper macro
DEFINE_DRM_GEM_FOPS().
v2:
* rebase onto latest upstream
* remove declaration of msm_gem_mmap_obj() from msm_fbdev.c
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20210706084753.8194-1-tzimmermann@suse.de
[squash in missing VM_DONTEXPAND flag]
Signed-off-by: Rob Clark <robdclark@chromium.org>
This patch adds support for the gpu found in the Snapdragon 7c Gen 3
compute platform. This gpu is similar to the exisiting a660 gpu with
minor delta in the programing sequence. As the Adreno GPUs are moving
away from a numeric chipid based naming scheme to a string, it was
decided to use 0x06030500 as the chip id of this gpu to communicate
to the userspace driver.
Signed-off-by: Akhil P Oommen <akhilpo@codeaurora.org>
Link: https://lore.kernel.org/r/20210730011945.v4.3.I610377db0934b6b7deda532ec2bf786a02c38c01@changeid
Signed-off-by: Rob Clark <robdclark@chromium.org>
Mark all the bos in the submit as active, before pinning, to prevent
evicting a buffer in the same submit to make room for a buffer earlier
in the table.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Link: https://lore.kernel.org/r/20210728010632.2633470-14-robdclark@gmail.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
The drm/scheduler provides additional prioritization on top of that
provided by however many number of ringbuffers (each with their own
priority level) is supported on a given generation. Expose the
additional levels of priority to userspace and map the userspace
priority back to ring (first level of priority) and schedular priority
(additional priority levels within the ring).
Signed-off-by: Rob Clark <robdclark@chromium.org>
Acked-by: Christian König <christian.koenig@amd.com>
Link: https://lore.kernel.org/r/20210728010632.2633470-13-robdclark@gmail.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
It is sufficient to serialize on the submit queue now.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Acked-by: Christian König <christian.koenig@amd.com>
Link: https://lore.kernel.org/r/20210728010632.2633470-12-robdclark@gmail.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
This was only used to detect userspace including the same bo multiple
times in a submit. But ww_mutex can already tell us this.
When we drop struct_mutex around the submit ioctl, we'd otherwise need
to lock the bo before adding it to the bo_list. But since ww_mutex can
already tell us this, it is simpler just to remove the bo_list.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Link: https://lore.kernel.org/r/20210728010632.2633470-11-robdclark@gmail.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
For existing adrenos, there is one or more ringbuffer, depending on
whether preemption is supported. When preemption is supported, each
ringbuffer has it's own priority. A submitqueue (which maps to a
gl context or vk queue in userspace) is mapped to a specific ring-
buffer at creation time, based on the submitqueue's priority.
Each ringbuffer has it's own drm_gpu_scheduler. Each submitqueue
maps to a drm_sched_entity. And each submit maps to a drm_sched_job.
Closes: https://gitlab.freedesktop.org/drm/msm/-/issues/4
Signed-off-by: Rob Clark <robdclark@chromium.org>
Acked-by: Christian König <christian.koenig@amd.com>
Link: https://lore.kernel.org/r/20210728010632.2633470-10-robdclark@gmail.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
In the next patch, we start having more than a single potential failure
reason.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Acked-by: Christian König <christian.koenig@amd.com>
Link: https://lore.kernel.org/r/20210728010632.2633470-9-robdclark@gmail.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
Previously the (non-fd) fence returned from submit ioctl was a raw
seqno, which is scoped to the ring. But from UABI standpoint, the
ioctls related to seqno fences all specify a submitqueue. We can
take advantage of that to replace the seqno fences with a cyclic idr
handle.
This is in preperation for moving to drm scheduler, at which point
the submit ioctl will return after queuing the submit job to the
scheduler, but before the submit is written into the ring (and
therefore before a ring seqno has been assigned). Which means we
need to replace the dma_fence that userspace may need to wait on
with a scheduler fence.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Acked-by: Christian König <christian.koenig@amd.com>
Link: https://lore.kernel.org/r/20210728010632.2633470-8-robdclark@gmail.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
Move all the locked/active/pinned state handling to msm_gem_submit.c.
In particular, for drm/scheduler, we'll need to do all this before
pushing the submit job to the scheduler. But while we're at it we can
get rid of the dupicate pin and refcnt.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Acked-by: Christian König <christian.koenig@amd.com>
Link: https://lore.kernel.org/r/20210728010632.2633470-7-robdclark@gmail.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
Now that no one is using it, remove it.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://lore.kernel.org/r/20210728010632.2633470-5-robdclark@gmail.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
No idea why we were still using this. It certainly hasn't been needed
for some time. So drop the pointless twin codepaths.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Acked-by: Christian König <christian.koenig@amd.com>
Link: https://lore.kernel.org/r/20210728010632.2633470-4-robdclark@gmail.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
If we don't have a gpu, there is no need to create a submitqueue, which
lets us simplify the error handling and submitqueue creation.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Acked-by: Christian König <christian.koenig@amd.com>
Link: https://lore.kernel.org/r/20210728010632.2633470-3-robdclark@gmail.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
Fix a couple incorrect or misspelt comments, and add submitqueue doc
comment.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Acked-by: Christian König <christian.koenig@amd.com>
Link: https://lore.kernel.org/r/20210728010632.2633470-2-robdclark@gmail.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
This adds a few things to try and make frequency scaling better match
the workload:
1) Longer polling interval to avoid whip-lashing between too-high and
too-low frequencies in certain workloads, like mobile games which
throttle themselves to 30fps.
Previously our polling interval was short enough to let things
ramp down to minimum freq in the "off" frame, but long enough to
not react quickly enough when rendering started on the next frame,
leading to uneven frame times. (Ie. rather than a consistent 33ms
it would alternate between 16/33/48ms.)
2) Awareness of when the GPU is active vs idle. Since we know when
the GPU is active vs idle, we can clamp the frequency down to the
minimum while it is idle. (If it is idle for long enough, then
the autosuspend delay will eventually kick in and power down the
GPU.)
Since devfreq has no knowledge of powered-but-idle, this takes a
small bit of trickery to maintain a "fake" frequency while idle.
This, combined with the longer polling period allows devfreq to
arrive at a reasonable "active" frequency, while still clamping
to minimum freq when idle to reduce power draw.
3) Boost. Because simple_ondemand needs to see a certain threshold
of busyness to ramp up, we could end up needing multiple polling
cycles before it reacts appropriately on interactive workloads
(ex. scrolling a web page after reading for some time), on top
of the already lengthened polling interval, when we see a idle
to active transition after a period of idle time we boost the
frequency that we return to.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Link: https://lore.kernel.org/r/20210726144653.2180096-4-robdclark@gmail.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
In the next patch, it grows a bit more, so lets not duplicate the logic
in multiple places.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20210726144653.2180096-3-robdclark@gmail.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
Before we start adding more cleverness, split it into it's own file.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20210726144653.2180096-2-robdclark@gmail.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
Nothing we do to in update_fences() can't be done in an atomic context,
so move this into the GPU's irq context to reduce latency (and call
dma_fence_signal() so we aren't relying on dma_fence_is_signaled() which
would defeat the purpose).
Signed-off-by: Rob Clark <robdclark@chromium.org>
Link: https://lore.kernel.org/r/20210726144359.2179302-3-robdclark@gmail.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
Let dma_fence::signaled, etc, read directly from the address that the hw
is writing with updated completed fence seqno, so we can potentially
notice that the fence is signaled sooner.
Plus add some docs.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Link: https://lore.kernel.org/r/20210726144359.2179302-2-robdclark@gmail.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
gcc doesn't care, but clang quite reasonably pointed out that the recent
commit e9ba16e68c ("smpboot: Mark idle_init() as __always_inlined to
work around aggressive compiler un-inlining") did some really odd
things:
kernel/smpboot.c:50:20: warning: duplicate 'inline' declaration specifier [-Wduplicate-decl-specifier]
static inline void __always_inline idle_init(unsigned int cpu)
^
which not only has that duplicate inlining specifier, but the new
__always_inline was put in the wrong place of the function definition.
We put the storage class specifiers (ie things like "static" and
"extern") first, and the type information after that. And while the
compiler may not care, we put the inline specifier before the types.
So it should be just
static __always_inline void idle_init(unsigned int cpu)
instead.
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- Fix guest to host memory corruption in H_RTAS due to missing nargs check.
- Fix guest triggerable host crashes due to bad handling of nested guest TM state.
- Fix possible crashes due to incorrect reference counting in kvm_arch_vcpu_ioctl().
- Two commits fixing some regressions in KVM transactional memory handling introduced by
the recent rework of the KVM code.
Thanks to: Nicholas Piggin, Alexey Kardashevskiy, Michael Neuling.
-----BEGIN PGP SIGNATURE-----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=2TkE
-----END PGP SIGNATURE-----
Merge tag 'powerpc-5.14-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Fix guest to host memory corruption in H_RTAS due to missing nargs
check.
- Fix guest triggerable host crashes due to bad handling of nested
guest TM state.
- Fix possible crashes due to incorrect reference counting in
kvm_arch_vcpu_ioctl().
- Two commits fixing some regressions in KVM transactional memory
handling introduced by the recent rework of the KVM code.
Thanks to Nicholas Piggin, Alexey Kardashevskiy, and Michael Neuling.
* tag 'powerpc-5.14-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
KVM: PPC: Book3S HV Nested: Sanitise H_ENTER_NESTED TM state
KVM: PPC: Book3S: Fix H_RTAS rets buffer overflow
KVM: PPC: Fix kvm_arch_vcpu_ioctl vcpu_load leak
KVM: PPC: Book3S: Fix CONFIG_TRANSACTIONAL_MEM=n crash
KVM: PPC: Book3S HV P9: Fix guest TM support
- Plug a race between rearm and process tick in the posix CPU timers code
- Make the optimization to avoid recalculation of the next timer interrupt
work correctly when there are no timers pending.
-----BEGIN PGP SIGNATURE-----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=Q6oh
-----END PGP SIGNATURE-----
Merge tag 'timers-urgent-2021-07-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Thomas Gleixner:
"A small set of timer related fixes:
- Plug a race between rearm and process tick in the posix CPU timers
code
- Make the optimization to avoid recalculation of the next timer
interrupt work correctly when there are no timers pending"
* tag 'timers-urgent-2021-07-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
timers: Fix get_next_timer_interrupt() with no timers pending
posix-cpu-timers: Fix rearm racing against process tick
un-inlining which results in a section mismatch.
-----BEGIN PGP SIGNATURE-----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=ho3b
-----END PGP SIGNATURE-----
Merge tag 'locking-urgent-2021-07-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 jump label fix from Thomas Gleixner:
"A single fix for jump labels to prevent the compiler from agressive
un-inlining which results in a section mismatch"
* tag 'locking-urgent-2021-07-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
jump_labels: Mark __jump_label_transform() as __always_inlined to work around aggressive compiler un-inlining
- Prevent memblock and I/O reserved resources to get out of sync when EFI
memreserve is in use.
- Don't claim a non-existing table is invalid
- Don't warn when firmware memory is already reserved correctly
-----BEGIN PGP SIGNATURE-----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=hYsV
-----END PGP SIGNATURE-----
Merge tag 'efi-urgent-2021-07-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI fixes from Thomas Gleixner:
"A set of EFI fixes:
- Prevent memblock and I/O reserved resources to get out of sync when
EFI memreserve is in use.
- Don't claim a non-existing table is invalid
- Don't warn when firmware memory is already reserved correctly"
* tag 'efi-urgent-2021-07-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi/mokvar: Reserve the table only if it is in boot services data
efi/libstub: Fix the efi_load_initrd function description
firmware/efi: Tell memblock about EFI iomem reservations
efi/tpm: Differentiate missing and invalid final event log table.
causes a section mismatch.
-----BEGIN PGP SIGNATURE-----
iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmD9KsYTHHRnbHhAbGlu
dXRyb25peC5kZQAKCRCmGPVMDXSYof1HEACfpcjQbezuNjuoSYQNpAz9jz/W63iH
FXTBAiC8IVzloRgNjlbVAVGgJlYFgbgkke2ulNwsRIwwVhhyDYDPio88U498LdB5
bQdw/jsylHY+5ipvGCxf2uvMI8xIk6Gj3bbgIsVxBqpCTaJOsFE8E69UUVZjxPMB
kpHQ2GzCLe0FxXC7reFoIIPhY9U1cYXNHUso4w2um6enr10uEwMouXOGkhNAboOl
bmi97wWd/wgfSJNUGrsGpK+f4yTAhfdXvPv79t0Dzbg7KqTxFdU2dmrHQYinuw96
YTZLW32o5JJzW/AjPcDTTixXStbwtrAS6GPqoAL65n2rvwit64SYfhPjJAie3+Ly
eHzNUyZX6+zczfe7zj8nXiutMc/KI5aRcwf1S2PCMefi1IoJuVOdbe9Pgj/iFtCt
GRGSZ+gob7R4Onvs2Yaw8iS32KjetmGTN7V9BuPTIgPgZ9UjQvB9pnDWcICJnT9U
6HLvKBhVBfDVOSe2YDNEIMFVJdacb0EKegyLXU0S/E0CUPitXM9TivazRrSprEiJ
nZxH5sM+9rFtpHWA6lxKYmRP5e0BoMCZ6kerHmOMNa6dW4ha6D3J1KUJPYgJ4YH0
wQ9dF4ppHgBGsBtkZ7YVwXHkNnKJnr8GN8Xcf6CUFh1Yu61QMDCDyGR8cEVFc8Ai
TtZDCYJLBBA5bA==
=t8VJ
-----END PGP SIGNATURE-----
Merge tag 'core-urgent-2021-07-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull core fix from Thomas Gleixner:
"A single update for the boot code to prevent aggressive un-inlining
which causes a section mismatch"
* tag 'core-urgent-2021-07-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
smpboot: Mark idle_init() as __always_inlined to work around aggressive compiler un-inlining
-----BEGIN PGP SIGNATURE-----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=Ngut
-----END PGP SIGNATURE-----
Merge tag '5.14-rc2-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
"Five cifs/smb3 fixes, including a DFS failover fix, two fallocate
fixes, and two trivial coverity cleanups"
* tag '5.14-rc2-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: fix fallocate when trying to allocate a hole.
CIFS: Clarify SMB1 code for POSIX delete file
CIFS: Clarify SMB1 code for POSIX Create
cifs: support share failover when remounting
cifs: only write 64kb at a time when fallocating a small region of a file
* A fix to properly set the memory size, which fixes 32-bit systems.
* A fix to allow the initrd to load anywhere in memory, rather that
restricting it to the first 256MiB.
* A fix for the mem= parameter on 64-bit systems, to properly account
for the maximum supported memory now that the kernel is outside the
linear map.
* A fix to avoid installing mappings into the last 4KiB of memory, which
conflicts with error values.
* A fix to avoid the stack from being freed while it is being walked.
* A handful of fixes to the new copy to/from user routines.
-----BEGIN PGP SIGNATURE-----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=gyPr
-----END PGP SIGNATURE-----
Merge tag 'riscv-for-linus-5.14-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
- properly set the memory size, which fixes 32-bit systems
- allow initrd to load anywhere in memory, rather that restricting it
to the first 256MiB
- fix the 'mem=' parameter on 64-bit systems to properly account for
the maximum supported memory now that the kernel is outside the
linear map
- avoid installing mappings into the last 4KiB of memory, which
conflicts with error values
- avoid the stack from being freed while it is being walked
- a handful of fixes to the new copy to/from user routines
* tag 'riscv-for-linus-5.14-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: __asm_copy_to-from_user: Fix: Typos in comments
riscv: __asm_copy_to-from_user: Remove unnecessary size check
riscv: __asm_copy_to-from_user: Fix: fail on RV32
riscv: __asm_copy_to-from_user: Fix: overrun copy
riscv: stacktrace: pin the task's stack in get_wchan
riscv: Make sure the kernel mapping does not overlap with IS_ERR_VALUE
riscv: Make sure the linear mapping does not use the kernel mapping
riscv: Fix memory_limit for 64-bit kernel
RISC-V: load initrd wherever it fits into memory
riscv: Fix 32-bit RISC-V boot failure
Commit 71f6428332 ("ACPI: utils: Fix reference counting in
for_each_acpi_dev_match()") started doing "acpi_dev_put()" on a pointer
that was possibly NULL. That fails miserably, because that helper
inline function is not set up to handle that case.
Just make acpi_dev_put() silently accept a NULL pointer, rather than
calling down to put_device() with an invalid offset off that NULL
pointer.
Link: https://lore.kernel.org/lkml/a607c149-6bf6-0fd0-0e31-100378504da2@kernel.dk/
Reported-and-tested-by: Jens Axboe <axboe@kernel.dk>
Tested-by: Daniel Scally <djrscally@gmail.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Four fixes, all in drivers, all of which can lead to user visible
problems in certain situations.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
-----BEGIN PGP SIGNATURE-----
iJwEABMIAEQWIQTnYEDbdso9F2cI+arnQslM7pishQUCYPxK+iYcamFtZXMuYm90
dG9tbGV5QGhhbnNlbnBhcnRuZXJzaGlwLmNvbQAKCRDnQslM7pishaTeAP99TVNt
QDcY97BEpdnbfiNk12oQzmb+DXMJIky8c4QPQgD9H6y9npruZ6QA0WVyJ3NHgLJC
y3MClDGcN3OAtNAu2K0=
=/VG3
-----END PGP SIGNATURE-----
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Four fixes, all in drivers, all of which can lead to user visible
problems in certain situations"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: target: Fix NULL dereference on XCOPY completion
scsi: mpt3sas: Transition IOC to Ready state during shutdown
scsi: target: Fix protect handling in WRITE SAME(32)
scsi: iscsi: Fix iface sysfs attr detection
-----BEGIN PGP SIGNATURE-----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=uzwV
-----END PGP SIGNATURE-----
Merge tag 'block-5.14-2021-07-24' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
- NVMe pull request (Christoph):
- tracing fix (Keith Busch)
- fix multipath head refcounting (Hannes Reinecke)
- Write Zeroes vs PI fix (me)
- drop a bogus WARN_ON (Zhihao Cheng)
- Increase max blk-cgroup policy size, now that mq-deadline
uses it too (Oleksandr)
* tag 'block-5.14-2021-07-24' of git://git.kernel.dk/linux-block:
nvme: set the PRACT bit when using Write Zeroes with T10 PI
nvme: fix nvme_setup_command metadata trace event
nvme: fix refcounting imbalance when all paths are down
nvme-pci: don't WARN_ON in nvme_reset_work if ctrl.state is not RESETTING
block: increase BLKCG_MAX_POLS
Pull i2c fixes from Wolfram Sang:
"Two bugfixes for the I2C subsystem"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: mpc: Poll for MCF
misc: eeprom: at24: Always append device id even if label property is set.
Merge misc mm fixes from Andrew Morton:
"15 patches.
VM subsystems affected by this patch series: userfaultfd, kfence,
highmem, pagealloc, memblock, pagecache, secretmem, pagemap, and
hugetlbfs"
* akpm:
hugetlbfs: fix mount mode command line processing
mm: fix the deadlock in finish_fault()
mm: mmap_lock: fix disabling preemption directly
mm/secretmem: wire up ->set_page_dirty
writeback, cgroup: do not reparent dax inodes
writeback, cgroup: remove wb from offline list before releasing refcnt
memblock: make for_each_mem_range() traverse MEMBLOCK_HOTPLUG regions
mm: page_alloc: fix page_poison=1 / INIT_ON_ALLOC_DEFAULT_ON interaction
mm: use kmap_local_page in memzero_page
mm: call flush_dcache_page() in memcpy_to_page() and memzero_page()
kfence: skip all GFP_ZONEMASK allocations
kfence: move the size check to the beginning of __kfence_alloc()
kfence: defer kfence_test_init to ensure that kunit debugfs is created
selftest: use mmap instead of posix_memalign to allocate memory
userfaultfd: do not untag user pointers
Clean up:
The size of 0 will be evaluated in the next step. Not
required here.
Signed-off-by: Akira Tsukamoto <akira.tsukamoto@gmail.com>
Fixes: ca6eaaa210 ("riscv: __asm_copy_to-from_user: Optimize unaligned memory access and pipeline stall")
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Had a bug when converting bytes to bits when the cpu was rv32.
The a3 contains the number of bytes and multiple of 8
would be the bits. The LGREG is holding 2 for RV32 and 3 for
RV32, so to achieve multiple of 8 it must always be constant 3.
The 2 was mistakenly used for rv32.
Signed-off-by: Akira Tsukamoto <akira.tsukamoto@gmail.com>
Fixes: ca6eaaa210 ("riscv: __asm_copy_to-from_user: Optimize unaligned memory access and pipeline stall")
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
There were two causes for the overrun memory access.
The threshold size was too small.
The aligning dst require one SZREG and unrolling word copy requires
8*SZREG, total have to be at least 9*SZREG.
Inside the unrolling copy, the subtracting -(8*SZREG-1) would make
iteration happening one extra loop. Proper value is -(8*SZREG).
Signed-off-by: Akira Tsukamoto <akira.tsukamoto@gmail.com>
Fixes: ca6eaaa210 ("riscv: __asm_copy_to-from_user: Optimize unaligned memory access and pipeline stall")
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
In commit 32021982a3 ("hugetlbfs: Convert to fs_context") processing
of the mount mode string was changed from match_octal() to fsparam_u32.
This changed existing behavior as match_octal does not require octal
values to have a '0' prefix, but fsparam_u32 does.
Use fsparam_u32oct which provides the same behavior as match_octal.
Link: https://lkml.kernel.org/r/20210721183326.102716-1-mike.kravetz@oracle.com
Fixes: 32021982a3 ("hugetlbfs: Convert to fs_context")
Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com>
Reported-by: Dennis Camera <bugs+kernel.org@dtnr.ch>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit 63f3655f95 ("mm, memcg: fix reclaim deadlock with writeback")
fix the following ABBA deadlock by pre-allocating the pte page table
without holding the page lock.
lock_page(A)
SetPageWriteback(A)
unlock_page(A)
lock_page(B)
lock_page(B)
pte_alloc_one
shrink_page_list
wait_on_page_writeback(A)
SetPageWriteback(B)
unlock_page(B)
# flush A, B to clear the writeback
Commit f9ce0be71d ("mm: Cleanup faultaround and finish_fault()
codepaths") reworked the relevant code but ignored this race. This will
cause the deadlock above to appear again, so fix it.
Link: https://lkml.kernel.org/r/20210721074849.57004-1-zhengqi.arch@bytedance.com
Fixes: f9ce0be71d ("mm: Cleanup faultaround and finish_fault() codepaths")
Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Muchun Song <songmuchun@bytedance.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit 832b507253 ("mm: mmap_lock: use local locks instead of
disabling preemption") fixed a bug by using local locks.
But commit d01079f3d0 ("mm/mmap_lock: remove dead code for
!CONFIG_TRACING configurations") changed those lines back to the
original version.
I guess it was introduced by fixing conflicts.
Link: https://lkml.kernel.org/r/20210720074228.76342-1-songmuchun@bytedance.com
Fixes: d01079f3d0 ("mm/mmap_lock: remove dead code for !CONFIG_TRACING configurations")
Signed-off-by: Muchun Song <songmuchun@bytedance.com>
Acked-by: Mel Gorman <mgorman@techsingularity.net>
Reviewed-by: Yang Shi <shy828301@gmail.com>
Reviewed-by: Pankaj Gupta <pankaj.gupta@ionos.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Make secretmem up to date with the changes done in commit 0af573780b
("mm: require ->set_page_dirty to be explicitly wired up") so that
unconditional call to this method won't cause crashes.
Link: https://lkml.kernel.org/r/20210716063933.31633-1-rppt@kernel.org
Fixes: 0af573780b ("mm: require ->set_page_dirty to be explicitly wired up")
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit b10d6bca87 ("arch, drivers: replace for_each_membock() with
for_each_mem_range()") didn't take into account that when there is
movable_node parameter in the kernel command line, for_each_mem_range()
would skip ranges marked with MEMBLOCK_HOTPLUG.
The page table setup code in POWER uses for_each_mem_range() to create
the linear mapping of the physical memory and since the regions marked
as MEMORY_HOTPLUG are skipped, they never make it to the linear map.
A later access to the memory in those ranges will fail:
BUG: Unable to handle kernel data access on write at 0xc000000400000000
Faulting instruction address: 0xc00000000008a3c0
Oops: Kernel access of bad area, sig: 11 [#1]
LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA pSeries
Modules linked in:
CPU: 0 PID: 53 Comm: kworker/u2:0 Not tainted 5.13.0 #7
NIP: c00000000008a3c0 LR: c0000000003c1ed8 CTR: 0000000000000040
REGS: c000000008a57770 TRAP: 0300 Not tainted (5.13.0)
MSR: 8000000002009033 <SF,VEC,EE,ME,IR,DR,RI,LE> CR: 84222202 XER: 20040000
CFAR: c0000000003c1ed4 DAR: c000000400000000 DSISR: 42000000 IRQMASK: 0
GPR00: c0000000003c1ed8 c000000008a57a10 c0000000019da700 c000000400000000
GPR04: 0000000000000280 0000000000000180 0000000000000400 0000000000000200
GPR08: 0000000000000100 0000000000000080 0000000000000040 0000000000000300
GPR12: 0000000000000380 c000000001bc0000 c0000000001660c8 c000000006337e00
GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
GPR20: 0000000040000000 0000000020000000 c000000001a81990 c000000008c30000
GPR24: c000000008c20000 c000000001a81998 000fffffffff0000 c000000001a819a0
GPR28: c000000001a81908 c00c000001000000 c000000008c40000 c000000008a64680
NIP clear_user_page+0x50/0x80
LR __handle_mm_fault+0xc88/0x1910
Call Trace:
__handle_mm_fault+0xc44/0x1910 (unreliable)
handle_mm_fault+0x130/0x2a0
__get_user_pages+0x248/0x610
__get_user_pages_remote+0x12c/0x3e0
get_arg_page+0x54/0xf0
copy_string_kernel+0x11c/0x210
kernel_execve+0x16c/0x220
call_usermodehelper_exec_async+0x1b0/0x2f0
ret_from_kernel_thread+0x5c/0x70
Instruction dump:
79280fa4 79271764 79261f24 794ae8e2 7ca94214 7d683a14 7c893a14 7d893050
7d4903a6 60000000 60000000 60000000 <7c001fec> 7c091fec 7c081fec 7c051fec
---[ end trace 490b8c67e6075e09 ]---
Making for_each_mem_range() include MEMBLOCK_HOTPLUG regions in the
traversal fixes this issue.
Link: https://bugzilla.redhat.com/show_bug.cgi?id=1976100
Link: https://lkml.kernel.org/r/20210712071132.20902-1-rppt@kernel.org
Fixes: b10d6bca87 ("arch, drivers: replace for_each_membock() with for_each_mem_range()")
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Tested-by: Greg Kurz <groug@kaod.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: <stable@vger.kernel.org> [5.10+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
