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1,169,205 commits

Author SHA1 Message Date
Matthew Rosato
c435c54639 vfio/pci: introduce CONFIG_VFIO_PCI_ZDEV_KVM
The current contents of vfio-pci-zdev are today only useful in a KVM
environment; let's tie everything currently under vfio-pci-zdev to
this Kconfig statement and require KVM in this case, reducing complexity
(e.g. symbol lookups).

Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: Pierre Morel <pmorel@linux.ibm.com>
Link: https://lore.kernel.org/r/20220606203325.110625-11-mjrosato@linux.ibm.com
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
2022-07-11 09:54:25 +02:00
Matthew Rosato
d103846776 s390/pci: stash dtsm and maxstbl
Store information about what IOAT designation types are supported by
underlying hardware as well as the largest store block size allowed.
These values will be needed by passthrough.

Reviewed-by: Niklas Schnelle <schnelle@linux.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Link: https://lore.kernel.org/r/20220606203325.110625-10-mjrosato@linux.ibm.com
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
2022-07-11 09:54:24 +02:00
Matthew Rosato
c68468ed34 s390/pci: stash associated GISA designation
For passthrough devices, we will need to know the GISA designation of the
guest if interpretation facilities are to be used.  Setup to stash this in
the zdev and set a default of 0 (no GISA designation) for now; a subsequent
patch will set a valid GISA designation for passthrough devices.
Also, extend mpcific routines to specify this stashed designation as part
of the mpcific command.

Reviewed-by: Pierre Morel <pmorel@linux.ibm.com>
Reviewed-by: Niklas Schnelle <schnelle@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Link: https://lore.kernel.org/r/20220606203325.110625-9-mjrosato@linux.ibm.com
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
2022-07-11 09:54:22 +02:00
Matthew Rosato
062f002485 s390/pci: externalize the SIC operation controls and routine
A subsequent patch will be issuing SIC from KVM -- export the necessary
routine and make the operation control definitions available from a header.
Because the routine will now be exported, let's rename __zpci_set_irq_ctrl
to zpci_set_irq_ctrl and get rid of the zero'd iib wrapper function of
the same name.

Reviewed-by: Niklas Schnelle <schnelle@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.ibm.com>
Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Link: https://lore.kernel.org/r/20220606203325.110625-8-mjrosato@linux.ibm.com
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
2022-07-11 09:54:20 +02:00
Matthew Rosato
932b646727 s390/airq: allow for airq structure that uses an input vector
When doing device passthrough where interrupts are being forwarded from
host to guest, we wish to use a pinned section of guest memory as the
vector (the same memory used by the guest as the vector). To accomplish
this, add a new parameter for airq_iv_create which allows passing an
existing vector to be used instead of allocating a new one. The caller
is responsible for ensuring the vector is pinned in memory as well as for
unpinning the memory when the vector is no longer needed.

A subsequent patch will use this new parameter for zPCI interpretation.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Pierre Morel <pmorel@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Link: https://lore.kernel.org/r/20220606203325.110625-7-mjrosato@linux.ibm.com
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
2022-07-11 09:54:15 +02:00
Matthew Rosato
d2197485a1 s390/airq: pass more TPI info to airq handlers
A subsequent patch will introduce an airq handler that requires additional
TPI information beyond directed vs floating, so pass the entire tpi_info
structure via the handler.  Only pci actually uses this information today,
for the other airq handlers this is effectively a no-op.

Reviewed-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Acked-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Link: https://lore.kernel.org/r/20220606203325.110625-6-mjrosato@linux.ibm.com
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
2022-07-11 09:54:10 +02:00
Matthew Rosato
b05a870c5e s390/sclp: detect the AISI facility
Detect the Adapter Interruption Suppression Interpretation facility.

Reviewed-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Link: https://lore.kernel.org/r/20220606203325.110625-5-mjrosato@linux.ibm.com
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
2022-07-11 09:54:00 +02:00
Matthew Rosato
efef0db77c s390/sclp: detect the AENI facility
Detect the Adapter Event Notification Interpretation facility.

Reviewed-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Link: https://lore.kernel.org/r/20220606203325.110625-4-mjrosato@linux.ibm.com
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
2022-07-11 09:53:56 +02:00
Matthew Rosato
9db153f452 s390/sclp: detect the AISII facility
Detect the Adapter Interruption Source ID Interpretation facility.

Reviewed-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Link: https://lore.kernel.org/r/20220606203325.110625-3-mjrosato@linux.ibm.com
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
2022-07-11 09:53:51 +02:00
Matthew Rosato
e3d27b6211 s390/sclp: detect the zPCI load/store interpretation facility
Detect the zPCI Load/Store Interpretation facility.

Reviewed-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Link: https://lore.kernel.org/r/20220606203325.110625-2-mjrosato@linux.ibm.com
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
2022-07-11 09:53:47 +02:00
Arunpravin Paneer Selvam
20529e260f Revert "drm/amdgpu: fix start calculation in amdgpu_vram_mgr_new"
This reverts commit 5e3f1e7729.

This is part of a revert of the following commits:
commit 708d19d9f3 ("drm/amdgpu: move internal vram_mgr function into the C file")
commit 5e3f1e7729 ("drm/amdgpu: fix start calculation in amdgpu_vram_mgr_new")
commit c9cad937c0 ("drm/amdgpu: add drm buddy support to amdgpu")

[WHY]
Few users reported garbaged graphics as soon as x starts,
reverting until this can be resolved.

Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220708093047.492662-2-Arunpravin.PaneerSelvam@amd.com
2022-07-11 09:42:38 +02:00
Arunpravin Paneer Selvam
d395fb1999 Revert "drm/amdgpu: move internal vram_mgr function into the C file"
This reverts commit 708d19d9f3.

This is part of a revert of the following commits:
commit 708d19d9f3 ("drm/amdgpu: move internal vram_mgr function into the C file")
commit 5e3f1e7729 ("drm/amdgpu: fix start calculation in amdgpu_vram_mgr_new")
commit c9cad937c0 ("drm/amdgpu: add drm buddy support to amdgpu")

[WHY]
Few users reported garbaged graphics as soon as x starts,
reverting until this can be resolved.

Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220708093047.492662-1-Arunpravin.PaneerSelvam@amd.com
2022-07-11 09:41:06 +02:00
Greg Kroah-Hartman
39c1b1af3e Merge 5.19-rc6 into staging-next
We need the staging driver fix in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-07-11 09:25:23 +02:00
Masahiro Yamada
8b979924b9 x86/build: Remove unused OBJECT_FILES_NON_STANDARD_test_nx.o
Commit 3ad38ceb27 ("x86/mm: Remove CONFIG_DEBUG_NX_TEST")
removed arch/x86/kernel/test_nx.c

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20220711041247.119357-1-masahiroy@kernel.org
2022-07-11 08:53:28 +02:00
Nathan Chancellor
1b8667812b x86/Kconfig: Fix CONFIG_CC_HAS_SANE_STACKPROTECTOR when cross compiling with clang
Chimera Linux notes that CONFIG_CC_HAS_SANE_STACKPROTECTOR cannot be
enabled when cross compiling an x86_64 kernel with clang, even though it
does work when natively compiling.

When building on aarch64:

  $ make -sj"$(nproc)" ARCH=x86_64 LLVM=1 defconfig

  $ grep STACKPROTECTOR .config

When building on x86_64:

  $ make -sj"$(nproc)" ARCH=x86_64 LLVM=1 defconfig

  $ grep STACKPROTECTOR .config
  CONFIG_CC_HAS_SANE_STACKPROTECTOR=y
  CONFIG_HAVE_STACKPROTECTOR=y
  CONFIG_STACKPROTECTOR=y
  CONFIG_STACKPROTECTOR_STRONG=y

When clang is invoked without a '--target' flag, code is generated for
the default target, which is usually the host (it is configurable via
cmake). As a result, the has-stack-protector scripts will generate code
for the default target but check for x86 specific segment registers,
which cannot succeed if the default target is not x86.

$(CLANG_FLAGS) contains an explicit '--target' flag so pass that
variable along to the has-stack-protector scripts so that the stack
protector can be enabled when cross compiling with clang. The 32-bit
stack protector cannot currently be enabled with clang, as it does not
support '-mstack-protector-guard-symbol', so this results in no
functional change for ARCH=i386 when cross compiling.

Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: 0fb7e506d5
Link: https://github.com/llvm/llvm-project/issues/48553
Link: https://lkml.kernel.org/r/20220617180845.2788442-1-nathan@kernel.org
2022-07-11 08:49:39 +02:00
Greg Kroah-Hartman
14facbc187 Merge 5.19-rc6 into char-misc-next
We need the misc driver fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-07-11 08:32:58 +02:00
Mustafa Ismail
cc0315564d RDMA/irdma: Fix sleep from invalid context BUG
Taking the qos_mutex to process RoCEv2 QP's on netdev events causes a
kernel splat.

Fix this by removing the handling for RoCEv2 in
irdma_cm_teardown_connections that uses the mutex. This handling is only
needed for iWARP to avoid having connections established while the link is
down or having connections remain functional after the IP address is
removed.

  BUG: sleeping function called from invalid context at kernel/locking/mutex.
  Call Trace:
  kernel: dump_stack+0x66/0x90
  kernel: ___might_sleep.cold.92+0x8d/0x9a
  kernel: mutex_lock+0x1c/0x40
  kernel: irdma_cm_teardown_connections+0x28e/0x4d0 [irdma]
  kernel: ? check_preempt_curr+0x7a/0x90
  kernel: ? select_idle_sibling+0x22/0x3c0
  kernel: ? select_task_rq_fair+0x94c/0xc90
  kernel: ? irdma_exec_cqp_cmd+0xc27/0x17c0 [irdma]
  kernel: ? __wake_up_common+0x7a/0x190
  kernel: irdma_if_notify+0x3cc/0x450 [irdma]
  kernel: ? sched_clock_cpu+0xc/0xb0
  kernel: irdma_inet6addr_event+0xc6/0x150 [irdma]

Fixes: 146b9756f1 ("RDMA/irdma: Add connection manager")
Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2022-07-11 03:04:16 -03:00
Mustafa Ismail
5e8afb8792 RDMA/irdma: Do not advertise 1GB page size for x722
x722 does not support 1GB page size but the irdma driver incorrectly
advertises 1GB page size support for x722 device to ib_core to compute the
best page size to use on this MR.  This could lead to incorrect start
offsets computed by hardware on the MR.

Fixes: b48c24c2d7 ("RDMA/irdma: Implement device supported verb APIs")
Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2022-07-11 03:03:50 -03:00
Dan Carpenter
e87197fbd1 drm/i915/gvt: IS_ERR() vs NULL bug in intel_gvt_update_reg_whitelist()
The shmem_pin_map() function returns NULL, it doesn't return error
pointers.

Fixes: 97ea656521 ("drm/i915/gvt: Parse default state to update reg whitelist")
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/Ysftoia2BPUyqVcD@kili
Acked-by: Zhenyu Wang <zhenyuw@linux.intel.com>
2022-07-11 13:05:05 +08:00
Anup Patel
be82abe6a7 RISC-V: KVM: Fix SRCU deadlock caused by kvm_riscv_check_vcpu_requests()
The kvm_riscv_check_vcpu_requests() is called with SRCU read lock held
and for KVM_REQ_SLEEP request it will block the VCPU without releasing
SRCU read lock. This causes KVM ioctls (such as KVM_IOEVENTFD) from
other VCPUs of the same Guest/VM to hang/deadlock if there is any
synchronize_srcu() or synchronize_srcu_expedited() in the path.

To fix the above in kvm_riscv_check_vcpu_requests(), we should do SRCU
read unlock before blocking the VCPU and do SRCU read lock after VCPU
wakeup.

Fixes: cce69aff68 ("RISC-V: KVM: Implement VCPU interrupts and requests handling")
Reported-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Tested-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
2022-07-11 09:36:32 +05:30
Alexandre Ghiti
88573389aa riscv: Fix missing PAGE_PFN_MASK
There are a bunch of functions that use the PFN from a page table entry
that end up with the svpbmt upper-bits because they are missing the newly
introduced PAGE_PFN_MASK which leads to wrong addresses conversions and
then crash: fix this by adding this mask.

Fixes: 100631b48d ("riscv: Fix accessing pfn bits in PTEs for non-32bit variants")
Signed-off-by: Alexandre Ghiti <alexandre.ghiti@canonical.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
2022-07-11 09:33:35 +05:30
William Zhang
45b9fc58ad clk: bcm: bcmbca: Replace ARCH_BCM_63XX with ARCH_BCMBCA
Prepare for the BCM63138 ARCH_BCM_63XX migration to ARCH_BCMBCA. Make
CLK_BCM_63XX depending and setting default on ARCH_BCMBCA.

Signed-off-by: William Zhang <william.zhang@broadcom.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2022-07-10 19:11:16 -07:00
William Zhang
aa6c9ae616 hwrng: bcm2835: bcmbca: Replace ARCH_BCM_63XX with ARCH_BCMBCA
Prepare for the BCM63138 ARCH_BCM_63XX migration to ARCH_BCMBCA. Make
HW_RANDOM_BCM2835 depending on ARCH_BCMBCA.

Signed-off-by: William Zhang <william.zhang@broadcom.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2022-07-10 19:11:00 -07:00
Matthew Wilcox (Oracle)
85656ec193 IDR: Note that the IDR API is deprecated
Some people read the documentation, perhaps.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2022-07-10 21:17:30 -04:00
Matthew Wilcox (Oracle)
1dd685c414 XArray: Add calls to might_alloc()
Catch bogus GFP flags deterministically, instead of occasionally
when we actually have to allocate memory.

Reported-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2022-07-10 21:17:30 -04:00
Trond Myklebust
6ca0a6f834 NFS: Fix case insensitive renames
For filesystems that are case insensitive and case preserving, we need
to be able to rename from one case folded variant of the filename to
another.
Currently, if we have looked up the target filename before the call to
rename, then we may have a hashed dentry with that target name in the
dcache, causing the vfs to optimise away the rename.
To avoid that, let's drop the target dentry, and leave it to the server
to optimise away the rename if that is the correct thing to do.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-07-10 19:00:53 -04:00
Trond Myklebust
431794e67e pNFS/files: Handle RDMA connection errors correctly
The RPC/RDMA driver will return -EPROTO and -ENODEV as connection errors
under certain circumstances. Make sure that we handle them correctly and
avoid cycling forever in a LAYOUTGET/LAYOUTRETURN loop.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-07-10 19:00:53 -04:00
Trond Myklebust
7836d75467 pNFS/flexfiles: Report RDMA connection errors to the server
The RPC/RDMA driver will return -EPROTO and -ENODEV as connection errors
under certain circumstances. Make sure that we handle them and report
them to the server. If not, we can end up cycling forever in a
LAYOUTGET/LAYOUTRETURN loop.

Fixes: a12f996d34 ("NFSv4/pNFS: Use connections to a DS that are all of the same protocol family")
Cc: stable@vger.kernel.org # 5.11.x
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-07-10 19:00:53 -04:00
Trond Myklebust
9597152d98 Revert "pNFS: nfs3_set_ds_client should set NFS_CS_NOPING"
This reverts commit c6eb58435b.
If a transport is down, then we want to fail over to other transports if
they are listed in the GETDEVICEINFO reply.

Fixes: c6eb58435b ("pNFS: nfs3_set_ds_client should set NFS_CS_NOPING")
Cc: stable@vger.kernel.org # 5.11.x
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-07-10 19:00:53 -04:00
Trond Myklebust
4b8dbdfbc5 SUNRPC: Fix an RPC/RDMA performance regression
Use the standard gfp mask instead of using GFP_NOWAIT. The latter causes
issues when under memory pressure.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-07-10 19:00:53 -04:00
Linus Torvalds
32346491dd Linux 5.19-rc6 v5.19-rc6 2022-07-10 14:40:51 -07:00
Linus Torvalds
24f4b40ec2 Merge branch 'hot-fixes' (fixes for rc6)
This is a collection of three fixes for small annoyances.

Two of these are already pending in other trees, but I really don't want
to release another -rc with these issues pending, so I picked up the
patches for these things directly.  We'll end up with duplicate commits
eventually, I prefer that over having these issues pending.

The third one is just me getting rid of another BUG_ON() just because it
was reported and I dislike those things so much.

* merge 'hot-fixes' branch:
  ida: don't use BUG_ON() for debugging
  drm/aperture: Run fbdev removal before internal helpers
  ptrace: fix clearing of JOBCTL_TRACED in ptrace_unfreeze_traced()
2022-07-10 14:26:49 -07:00
Linus Torvalds
fc82bbf4de ida: don't use BUG_ON() for debugging
This is another old BUG_ON() that just shouldn't exist (see also commit
a382f8fee4: "signal handling: don't use BUG_ON() for debugging").

In fact, as Matthew Wilcox points out, this condition shouldn't really
even result in a warning, since a negative id allocation result is just
a normal allocation failure:

  "I wonder if we should even warn here -- sure, the caller is trying to
   free something that wasn't allocated, but we don't warn for
   kfree(NULL)"

and goes on to point out how that current error check is only causing
people to unnecessarily do their own index range checking before freeing
it.

This was noted by Itay Iellin, because the bluetooth HCI socket cookie
code does *not* do that range checking, and ends up just freeing the
error case too, triggering the BUG_ON().

The HCI code requires CAP_NET_RAW, and seems to just result in an ugly
splat, but there really is no reason to BUG_ON() here, and we have
generally striven for allocation models where it's always ok to just do

    free(alloc());

even if the allocation were to fail for some random reason (usually
obviously that "random" reason being some resource limit).

Fixes: 88eca0207c ("ida: simplified functions for id allocation")
Reported-by: Itay Iellin <ieitayie@gmail.com>
Suggested-by: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-07-10 13:55:49 -07:00
Dan Williams
9e9e44017d cxl/hdm: Initialize decoder type for memory expander devices
Unless and until accelerator (type-2) drivers start registering for
CXL.mem mapping services from the CXL subsystem core, initialize idle
HDM decoders to the "expander" type. I.e. the only CXL devices using the
CXL core presently are those implementing the CXL 2.0 Type-3 memory
expander device class code that the cxl_pci driver claims.

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20220624041950.559155-6-dan.j.williams@intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2022-07-10 13:41:49 -07:00
Dan Williams
ee80001083 cxl/port: Cache CXL host bridge data
Region creation has need for checking host-bridge connectivity when
adding endpoints to regions. Record, at port creation time, the
host-bridge to provide a useful shortcut from any location in the
topology to the most-significant ancestor.

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20220624041950.559155-4-dan.j.williams@intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2022-07-10 12:10:07 -07:00
Linus Torvalds
952c53cd35 dmaengine fixes for v5.19
Core:
  - Revert verification of DMA_INTERRUPT capability as that was incorrect
 
 Bunch of driver fixes for:
  - ti: refcount and put_device leak
  - qcom_bam: runtime pm overflow
  - idxd: force wq context cleanup and call idxd_enable_system_pasid() on
    success
  - dw-axi-dmac: RMW on channel suspend register
  - imx-sdma: restart cyclic channel when enabled
  - at_xdma: error handling for at_xdmac_alloc_desc
  - pl330: lockdep warning
  - lgm: error handling path in probe
  - allwinner: Fix min/max typo in binding
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Merge tag 'dmaengine-fix-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine

Pull dmaengine fixes from Vinod Koul:
 "One core fix for DMA_INTERRUPT and rest driver fixes.

  Core:

   - Revert verification of DMA_INTERRUPT capability as that was
     incorrect

  Bunch of driver fixes for:

   - ti: refcount and put_device leak

   - qcom_bam: runtime pm overflow

   - idxd: force wq context cleanup and call idxd_enable_system_pasid()
     on success

   - dw-axi-dmac: RMW on channel suspend register

   - imx-sdma: restart cyclic channel when enabled

   - at_xdma: error handling for at_xdmac_alloc_desc

   - pl330: lockdep warning

   - lgm: error handling path in probe

   - allwinner: Fix min/max typo in binding"

* tag 'dmaengine-fix-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine:
  dt-bindings: dma: allwinner,sun50i-a64-dma: Fix min/max typo
  dmaengine: lgm: Fix an error handling path in intel_ldma_probe()
  dmaengine: pl330: Fix lockdep warning about non-static key
  dmaengine: idxd: Only call idxd_enable_system_pasid() if succeeded in enabling SVA feature
  dmaengine: at_xdma: handle errors of at_xdmac_alloc_desc() correctly
  dmaengine: imx-sdma: only restart cyclic channel when enabled
  dmaengine: dw-axi-dmac: Fix RMW on channel suspend register
  dmaengine: idxd: force wq context cleanup on device disable path
  dmaengine: qcom: bam_dma: fix runtime PM underflow
  dmaengine: imx-sdma: Allow imx8m for imx7 FW revs
  dmaengine: Revert "dmaengine: add verification of DMA_INTERRUPT capability for dmatest"
  dmaengine: ti: Add missing put_device in ti_dra7_xbar_route_allocate
  dmaengine: ti: Fix refcount leak in ti_dra7_xbar_route_allocate
2022-07-10 11:23:01 -07:00
Hans de Goede
b0d55983b2 platform/x86: intel_atomisp2_led: Also turn off the always-on camera LED on the Asus T100TAF
Like the Asus T100TA the Asus T100TAF has a camera LED which is always
on by default and both also use the same GPIO for the LED.

Relax the DMI match for the Asus T100TA so that it also matches
the T100TAF.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20220710173658.221528-1-hdegoede@redhat.com
2022-07-10 19:46:31 +02:00
Hans de Goede
fe16ecaa0e platform/x86: intel_atomisp2_led: Also turn off the always-on camera LED on the Asus T100TAF
Like the Asus T100TA the Asus T100TAF has a camera LED which is always
on by default and both also use the same GPIO for the LED.

Relax the DMI match for the Asus T100TA so that it also matches
the T100TAF.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20220710173658.221528-1-hdegoede@redhat.com
2022-07-10 19:37:19 +02:00
Dan Williams
08f8d040a1 tools/testing/cxl: Fix decoder default state
The 'enabled' state is reserved for committed decoders. By default,
cxl_test decoders are uncommitted at init time.

Fixes: 7c7d68db02 ("tools/testing/cxl: Enumerate mock decoders")
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/165603888091.551046.6312322707378021172.stgit@dwillia2-xfh
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2022-07-10 10:29:26 -07:00
Dan Williams
e7ad1bf683 tools/testing/cxl: Add partition support
In support of testing DPA allocation mechanisms in the CXL core, the
cxl_test environment needs to support establishing and retrieving the
'pmem partition boundary.

Replace the platform_device_add_resources() method for delineating DPA
within an endpoint with an emulated DEV_SIZE amount of partitionable
capacity. Set DEV_SIZE such that an endpoint has enough capacity to
simultaneously participate in 8 distinct regions.

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/165603887411.551046.13234212587991192347.stgit@dwillia2-xfh
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2022-07-10 10:29:26 -07:00
Dan Williams
855c90d305 tools/testing/cxl: Expand CFMWS windows
For the x2 host-bridge interleave windows, allow for a
x8-endpoint-interleave configuration per memory-type with each device
contributing the minimum 256MB extent. Similarly, for the x1 host-bridge
interleave windows, allow for a x4-endpoint-interleave configuration per
memory-type.

Bump up the number of decoders per-port to support hosting 8 regions.

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/165603886721.551046.8682583835505795210.stgit@dwillia2-xfh
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2022-07-10 10:29:26 -07:00
Dan Williams
b2f3b74e10 tools/testing/cxl: Move cxl_test resources to the top of memory
A recent QEMU upgrade resulted in collisions between QEMU's chosen
location for PCI MMIO and cxl_test's fake address location for emulated
CXL purposes. This was great for testing resource collisions, but not so
great for continuing to test the nominal cases. Move cxl_test to the
top-of-memory where it is less likely to collide with other resources.

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/165603886021.551046.12395967874222763381.stgit@dwillia2-xfh
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2022-07-10 10:20:37 -07:00
Dan Williams
cc2a487870 cxl/mem: Add a debugfs version of 'iomem' for DPA, 'dpamem'
Dump the device-physical-address map for a CXL expander in /proc/iomem
style format. E.g.:

  cat /sys/kernel/debug/cxl/mem1/dpamem
  00000000-0fffffff : ram
  10000000-1fffffff : pmem

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/165603885318.551046.8308248564880066726.stgit@dwillia2-xfh
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2022-07-10 10:10:30 -07:00
Dan Williams
9b99ecf5a3 cxl/debug: Move debugfs init to cxl_core_init()
In preparation for a new cxl debugfs file, move 'cxl' directory
establishment and teardown to the core and let subsequent init routines
reference that setup.

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/165603884654.551046.4962104601691723080.stgit@dwillia2-xfh
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2022-07-10 09:57:28 -07:00
Linus Torvalds
5867f3b88b Staging driver fix for 5.19-rc6
Here is a single staging driver fix for a reported problem that showed
 up in 5.19-rc1 in the wlan-ng driver.  It has been in linux-next for a
 week with no reported problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging driver fix from Greg KH:
 "Here is a single staging driver fix for a reported problem that showed
  up in 5.19-rc1 in the wlan-ng driver. It has been in linux-next for a
  week with no reported problems"

* tag 'staging-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging/wlan-ng: get the correct struct hfa384x in work callback
2022-07-10 09:51:56 -07:00
Linus Torvalds
b41362fdf2 Char/Misc driver fixes for 5.19-rc6
Here are 4 small char/misc driver fixes for 5.19-rc6 to resolve some
 reported issues.  They only affect 2 drivers:
 	- rtsx_usb: fix for of-reported DMA warning error, the driver
 	  was handling memory buffers in odd ways, it has now been fixed
 	  up to be much simpler and correct by Shuah.
 	- at25 eeprom driver bugfix for reported problem
 
 All of these have been in linux-next for a week with no reported
 problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
 "Here are four small char/misc driver fixes for 5.19-rc6 to resolve
  some reported issues. They only affect two drivers:

   - rtsx_usb: fix for of-reported DMA warning error, the driver was
     handling memory buffers in odd ways, it has now been fixed up to be
     much simpler and correct by Shuah.

   - at25 eeprom driver bugfix for reported problem

  All of these have been in linux-next for a week with no reported
  problems"

* tag 'char-misc-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  misc: rtsx_usb: set return value in rsp_buf alloc err path
  misc: rtsx_usb: use separate command and response buffers
  misc: rtsx_usb: fix use of dma mapped buffer for usb bulk transfer
  eeprom: at25: Rework buggy read splitting
2022-07-10 09:45:29 -07:00
Linus Torvalds
d9919d43cb o_uring-5.19-2022-07-09
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Merge tag 'io_uring-5.19-2022-07-09' of git://git.kernel.dk/linux-block

Pull io_uring fix from Jens Axboe:
 "A single fix for an issue that came up yesterday that we should plug
  for -rc6.

  This is a regression introduced in this cycle"

* tag 'io_uring-5.19-2022-07-09' of git://git.kernel.dk/linux-block:
  io_uring: check that we have a file table when allocating update slots
2022-07-10 09:14:54 -07:00
Andy Shevchenko
e286044bf5 platform/x86: serial-multi-instantiate: Sort ACPI IDs by HID
It's easier to maintain the sorted table.
Keep the sorting order in sync with one in drivers/acpi/scan.c.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20220709211653.18938-6-andriy.shevchenko@linux.intel.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-07-10 17:59:57 +02:00
Andy Shevchenko
f3e13bbc6f platform/x86: serial-multi-instantiate: Get rid of redundant 'else'
In the snippets like the following

	if (...)
		return / goto / break / continue ...;
	else
		...

the 'else' is redundant. Get rid of it.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20220709211653.18938-5-andriy.shevchenko@linux.intel.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-07-10 17:59:54 +02:00
Andy Shevchenko
ed7adc2b69 platform/x86: serial-multi-instantiate: Use while (i--) pattern to clean up
Use more natural while (i--) patter to clean up allocated resources.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20220709211653.18938-4-andriy.shevchenko@linux.intel.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-07-10 17:59:51 +02:00