Use a dummy xe_debugfs_register() if debugfs is not enabled and move all
debugfs-related files under `ifeq ($(CONFIG_DEBUG_FS),y)` in the
Makefile. This is similar to what was done for display in
commit 439987f6f4 ("drm/xe: don't build debugfs files when
CONFIG_DEBUG_FS=n").
This removes the following warning while loading xe with
CONFIG_DEUBG_FS=n:
xe 0000:03:00.0: [drm] Create GT directory failed
Reviewed-by: Nirmoy Das <nirmoy.das@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240808171121.2484237-1-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Commit 04d82a6d08 ("binfmt_flat: allow not offsetting data start")
introduced a RISC-V specific variant of the FLAT format which does
not allocate any space for the (obsolete) array of shared library
pointers. However, it did not disable the code which initializes the
array, resulting in the corruption of sizeof(long) bytes before the DATA
segment, generally the end of the TEXT segment.
Introduce MAX_SHARED_LIBS_UPDATE which depends on the state of
CONFIG_BINFMT_FLAT_NO_DATA_START_OFFSET to guard the initialization of
the shared library pointer region so that it will only be initialized
if space is reserved for it.
Fixes: 04d82a6d08 ("binfmt_flat: allow not offsetting data start")
Co-developed-by: Stefan O'Rear <sorear@fastmail.com>
Signed-off-by: Stefan O'Rear <sorear@fastmail.com>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Acked-by: Greg Ungerer <gerg@linux-m68k.org>
Link: https://lore.kernel.org/r/20240807195119.it.782-kees@kernel.org
Signed-off-by: Kees Cook <kees@kernel.org>
Noticed with:
1 6.22 debian:experimental-x-mipsel : FAIL gcc version 13.2.0 (Debian 13.2.0-25)
builtin-daemon.c: In function 'cmd_session_list':
builtin-daemon.c:691:35: error: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'time_t' {aka 'long long int'} [-Werror=format=]
Use inttypes.h's PRIu64 to deal with that.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lore.kernel.org/r/ZplvH21aQ8pzmza_@x1
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
bcachefs_metadata_version_disk_accounting_v2 erroneously had padding
bytes in disk_accounting_key, which is a problem because we have to
guarantee that all unused bytes in disk_accounting_key are zeroed.
Fortunately 6.11 isn't out yet, so it's cheap to fix this by spinning a
new version.
Reported-by: Gabriel de Perthuis <g2p.code@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
The cxl_test unit test environment on qemu always hits below call trace
with KASAN enabled:
BUG: KASAN: slab-out-of-bounds in cxl_setup_parent_dport+0x480/0x530 [cxl_core]
Read of size 1 at addr ff110000676014f8 by task (udev-worker)/676[ 24.424403] CPU: 2 PID: 676 Comm: (udev-worker) Tainted: G O N 6.10.0-qemucxl #1
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS edk2-20240214-2.el9 02/14/2024
Call Trace:
<TASK>
dump_stack_lvl+0xea/0x150
print_report+0xce/0x610
? kasan_complete_mode_report_info+0x40/0x200
kasan_report+0xcc/0x110
__asan_report_load1_noabort+0x18/0x20
cxl_setup_parent_dport+0x480/0x530 [cxl_core]
cxl_mem_probe+0x49b/0xaa0 [cxl_mem]
cxl_test module models a CXL topology for testing, it creates some
emulated dports with platform devices in the CXL topology, so the
dport_dev of an emulated dport points to a platform device rather than a
pci device or a pci host bridge in the case. Currently,
cxl_setup_parent_dport() is used to set up RAS and AER capability on the
dport connected to the CXL memory device, but cxl_test does not support
RAS or AER functionality yet, so the fix is implementing a
__wrap_cxl_setup_parent_dport() to filter out all emulated dports,
guarantees only real dports can be handled by cxl_setup_parent_dport().
Fixes: f05fd10d13 ("cxl/pci: Add RCH downstream port AER register discovery")
Reported-by: Pengfei Xu <pengfei.xu@intel.com>
Closes: https://lore.kernel.org/linux-cxl/ZrHTBp2O+HtUe6kt@xpf.sh.intel.com/T/#t
Signed-off-by: Li Ming <ming4.li@intel.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Tested-by: Ira Weiny <ira.weiny@intel.com>
Tested-by: Alison Schofield <alison.schofield@intel.com>
Link: https://patch.msgid.link/20240809082750.3015641-3-ming4.li@intel.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
cxl_setup_parent_dport() needs to get RCH dport AER capability address
from RCRB to disable AER interrupt. The function does not check if dport
is RCH dport, it will get a wrong pci_host_bridge structure by dport_dev
in VH case because dport_dev points to a pci device(RP or switch DSP)
rather than a pci host bridge device.
Fixes: f05fd10d13 ("cxl/pci: Add RCH downstream port AER register discovery")
Signed-off-by: Li Ming <ming4.li@intel.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Tested-by: Ira Weiny <ira.weiny@intel.com>
Tested-by: Alison Schofield <alison.schofield@intel.com>
Link: https://patch.msgid.link/20240809082750.3015641-2-ming4.li@intel.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
LLVM 19 is dropping support for 3DNow! in commit f0eb5587ceeb ("Remove
support for 3DNow!, both intrinsics and builtins. (#96246)"):
Remove support for 3DNow!, both intrinsics and builtins. (#96246)
This set of instructions was only supported by AMD chips starting in
the K6-2 (introduced 1998), and before the "Bulldozer" family
(2011). They were never much used, as they were effectively superseded
by the more-widely-implemented SSE (first implemented on the AMD side
in Athlon XP in 2001).
This is being done as a predecessor towards general removal of MMX
register usage. Since there is almost no usage of the 3DNow!
intrinsics, and no modern hardware even implements them, simple
removal seems like the best option.
Thus we should avoid passing these to the backend, since otherwise we
get a diagnostic about it:
'-3dnow' is not a recognized feature for this target (ignoring feature)
'-3dnowa' is not a recognized feature for this target (ignoring feature)
We could try to disable them only up to LLVM 19 (not the C side one,
but the one used by `rustc`, which may be built with a range of
LLVMs). However, to avoid more complexity, we can likely just remove
them altogether. According to Nikita [2]:
> I don't think it's needed because LLVM should not generate 3dnow
> instructions unless specifically asked to, using intrinsics that
> Rust does not provide in the first place.
Thus do so, like Rust did for one of their builtin targets [3].
For those curious: Clang will warn only about trying to enable them
(`-m3dnow{,a}`), but not about disabling them (`-mno-3dnow{,a}`), so
there is no change needed there.
Cc: Nikita Popov <github@npopov.com>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: x86@kernel.org
Link: f0eb5587ce [1]
Link: https://github.com/rust-lang/rust/pull/127864#issuecomment-2235898760 [2]
Link: https://github.com/rust-lang/rust/pull/127864 [3]
Closes: https://github.com/Rust-for-Linux/linux/issues/1094
Tested-by: Benno Lossin <benno.lossin@proton.me>
Tested-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20240806144558.114461-1-ojeda@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
When calling the `rust_is_available.sh` script, we need to make the
jobserver available to it, as commit ecab4115c4 ("kbuild: mark `rustc`
(and others) invocations as recursive") explains and did for the others.
Otherwise, we get a warning from `rustc` when calling `make rust-analyzer`
with parallel jobs, e.g. `-j8`. Using several jobs for that target does
not really matter, but developers may call `make` with jobs enabled in
all cases.
Thus fix it.
Fixes: 6dc9d9ca9a ("kbuild: rust-analyzer: better error handling")
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20240806233559.246705-1-ojeda@kernel.org
[ Reworded to add a couple more details mentioned in the list. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Alice reported [1] that an arm64 build failed with:
ld.lld: error: undefined symbol: __extendsfdf2
>>> referenced by core.a6f5fc5794e7b7b3-cgu.0
>>> rust/core.o:(<f32>::midpoint) in archive vmlinux.a
>>> referenced by core.a6f5fc5794e7b7b3-cgu.0
>>> rust/core.o:(<f32>::midpoint) in archive vmlinux.a
ld.lld: error: undefined symbol: __truncdfsf2
>>> referenced by core.a6f5fc5794e7b7b3-cgu.0
>>> rust/core.o:(<f32>::midpoint) in archive vmlinux.a
Rust 1.80.0 or later together with `CONFIG_CC_OPTIMIZE_FOR_SIZE=y`
is what triggers it.
In addition, x86_64 builds also fail the same way.
Similarly, compiling with Rust 1.82.0 (currently in nightly) makes
another one appear, possibly due to the LLVM 19 upgrade there:
ld.lld: error: undefined symbol: __eqdf2
>>> referenced by core.20495ea57a9f069d-cgu.0
>>> rust/core.o:(<f64>::next_up) in archive vmlinux.a
>>> referenced by core.20495ea57a9f069d-cgu.0
>>> rust/core.o:(<f64>::next_down) in archive vmlinux.a
Gary adds [1]:
> Usually the fix on rustc side is to mark those functions as `#[inline]`
>
> All of {midpoint,next_up,next_down} are indeed unstable functions not
> marked as inline...
Fix all those by adding those intrinsics to our usual workaround.
[ Trevor quickly submitted a fix to upstream Rust [2] that has already
been merged, to be released in Rust 1.82.0 (2024-10-17). - Miguel ]
Cc: Gary Guo <gary@garyguo.net>
Reported-by: Alice Ryhl <aliceryhl@google.com>
Closes: https://rust-for-linux.zulipchat.com/#narrow/stream/x/topic/x/near/455637364 [1]
Reviewed-by: Trevor Gross <tmgross@umich.edu>
Tested-by: Alice Ryhl <aliceryhl@google.com>
Tested-by: Boqun Feng <boqun.feng@gmail.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Link: https://github.com/rust-lang/rust/pull/128749 [2]
Link: https://lore.kernel.org/r/20240806150619.192882-1-ojeda@kernel.org
[ Shortened Zulip link. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
GCC 14 recently added -fmin-function-alignment option and the
root Makefile uses it to replace -falign-functions when available.
However, this flag can cause issues when passed to the Rust
Makefile and affect the bindgen process. Bindgen relies on
libclang to parse C code, and currently does not support the
-fmin-function-alignment flag, leading to compilation failures
when GCC 14 is used.
This patch addresses the issue by adding -fmin-function-alignment
to the bindgen_skip_c_flags in rust/Makefile. This prevents the
flag from causing compilation issues.
[ Matthew and Gary confirm function alignment should not change
the ABI in a way that bindgen would care about, thus we did
not need the extra logic for bindgen from v2. - Miguel ]
Link: https://lore.kernel.org/linux-kbuild/20240222133500.16991-1-petr.pavlu@suse.com/
Signed-off-by: Zehui Xu <zehuixu@whu.edu.cn>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Neal Gompa <neal@gompa.dev>
Reviewed-by: Gary Guo <gary@garyguo.net>
Link: https://lore.kernel.org/r/20240731134346.10630-1-zehuixu@whu.edu.cn
[ Reworded title. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
client:
- fix null ptr deref
bridge:
- connector: fix double free
atomic:
- fix async flip update
panel:
- document panel
omap:
- add config dependency
tests:
- fix gem shmem test
drm buddy:
- Add start address to trim function
amdgpu:
- DMCUB fix
- Fix DET programming on some DCNs
- DCC fixes
- DCN 4.0.1 fixes
- SMU 14.0.x update
- MMHUB fix
- DCN 3.1.4 fix
- GC 12.0 fixes
- Fix soft recovery error propogation
- SDMA 7.0 fixes
- DSC fix
xe:
- Fix off-by-one when processing RTP rules
- Use dma_fence_chain_free in chain fence unused as a sync
- Fix PL1 disable flow in xe_hwmon_power_max_write
- Take ref to VM in delayed dump snapshot
i915:
- correct dual pps handling for MTL_PCH+ [display]
- Adjust vma offset for framebuffer mmap offset [gem]
- Fix Virtual Memory mapping boundaries calculation [gem]
- Allow evicting to use the requested placement
- Attempt to get pages without eviction first
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Merge tag 'drm-fixes-2024-08-10' of https://gitlab.freedesktop.org/drm/kernel
Pull drm fixes from Dave Airlie:
"Weekly regular fixes, mostly amdgpu with i915/xe having a few each,
and then some misc bits across the board, seems about right for rc3
time.
client:
- fix null ptr deref
bridge:
- connector: fix double free
atomic:
- fix async flip update
panel:
- document panel
omap:
- add config dependency
tests:
- fix gem shmem test
drm buddy:
- Add start address to trim function
amdgpu:
- DMCUB fix
- Fix DET programming on some DCNs
- DCC fixes
- DCN 4.0.1 fixes
- SMU 14.0.x update
- MMHUB fix
- DCN 3.1.4 fix
- GC 12.0 fixes
- Fix soft recovery error propogation
- SDMA 7.0 fixes
- DSC fix
xe:
- Fix off-by-one when processing RTP rules
- Use dma_fence_chain_free in chain fence unused as a sync
- Fix PL1 disable flow in xe_hwmon_power_max_write
- Take ref to VM in delayed dump snapshot
i915:
- correct dual pps handling for MTL_PCH+ [display]
- Adjust vma offset for framebuffer mmap offset [gem]
- Fix Virtual Memory mapping boundaries calculation [gem]
- Allow evicting to use the requested placement
- Attempt to get pages without eviction first"
* tag 'drm-fixes-2024-08-10' of https://gitlab.freedesktop.org/drm/kernel: (31 commits)
drm/xe: Take ref to VM in delayed snapshot
drm/xe/hwmon: Fix PL1 disable flow in xe_hwmon_power_max_write
drm/xe: Use dma_fence_chain_free in chain fence unused as a sync
drm/xe/rtp: Fix off-by-one when processing rules
drm/amdgpu: Add DCC GFX12 flag to enable address alignment
drm/amdgpu: correct sdma7 max dw
drm/amdgpu: Add address alignment support to DCC buffers
drm/amd/display: Skip Recompute DSC Params if no Stream on Link
drm/amdgpu: change non-dcc buffer copy configuration
drm/amdgpu: Forward soft recovery errors to userspace
drm/amdgpu: add golden setting for gc v12
drm/buddy: Add start address support to trim function
drm/amd/display: Add missing program DET segment call to pipe init
drm/amd/display: Add missing DCN314 to the DML Makefile
drm/amdgpu: force to use legacy inv in mmhub
drm/amd/pm: update powerplay structure on smu v14.0.2/3
drm/amd/display: Add missing mcache registers
drm/amd/display: Add dcc propagation value
drm/amd/display: Add missing DET segments programming
drm/amd/display: Replace dm_execute_dmub_cmd with dc_wake_and_execute_dmub_cmd
...
Devices can provide multiple interrupt lines. One reason for this is that
a device has multiple subfunctions, each providing its own interrupt line.
Another reason is that a device can be designed to be used (also) on a
system where some of the interrupts can be routed to another processor.
A line often further acts as a demultiplex for specific interrupts
and has it's respective set of interrupt (status, mask, ack, ...)
registers.
Regmap supports the handling of these registers and demultiplexing
interrupts, but the interrupt domain code ends up assigning the same name
for the per interrupt line domains. This causes a naming collision in the
debugFS code and leads to confusion, as /proc/interrupts shows two separate
interrupts with the same domain name and hardware interrupt number.
Instead of adding a workaround in regmap or driver code, allow giving a
name suffix for the domain name when the domain is created.
Add a name_suffix field in the irq_domain_info structure and make
irq_domain_instantiate() use this suffix if it is given when a domain is
created.
[ tglx: Adopt it to the cleanup patch and fixup the invalid NULL return ]
Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/871q2yvk5x.ffs@tglx
irq_domain_set_name() is truly unreadable gunk. Clean it up before adding
more.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Matti Vaittinen <mazziesaccount@gmail.com>
Link: https://lore.kernel.org/all/874j7uvkbm.ffs@tglx
irq_domain_create_simple() and irq_domain_create_legacy() use
__irq_domain_instantiate(), but have extra handling of allocating interrupt
descriptors and associating interrupts in them. Some of that is duplicated.
There are also call sites which have conditonals to invoke different
interrupt domain creator functions, where one of them is usually
irq_domain_create_legacy(). Alternatively they associate the interrupts for
the legacy case after creating the domain.
Moving the extra logic of irq_domain_create_simple()/legacy() into
__irq_domain_instantiate() allows to consolidate that.
Introduce hwirq_base and virq_base members in the irq_domain_info
structure, which allows to transport the required information and add the
conditional interrupt descriptor allocation and interrupt association into
__irq_domain_instantiate().
This reduces irq_domain_create_legacy() and irq_domain_create_simple() to
trivial wrappers which fill in the info structure and allows call sites
which must support the legacy case along with more modern mechanism to
select the domain type via the parameters of the info struct.
[ tglx: Massaged change log ]
Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/32d07bd79eb2b5416e24da9e9e8fe5955423dcf9.1723120028.git.mazziesaccount@gmail.com
Create a source symlink to the original source in the objdir.
This is similar to what the main kernel build script does.
Committer testing:
⬢[acme@toolbox perf-tools-next]$ make O=/tmp/build/$(basename $PWD)/ -C tools/perf install-bin
<SNIP>
⬢[acme@toolbox perf-tools-next]$ ls -la /tmp/build/perf-tools-next/source
lrwxrwxrwx. 1 acme acme 41 Aug 9 16:26 /tmp/build/perf-tools-next/source -> /home/acme/git/perf-tools-next/tools/perf
⬢[acme@toolbox perf-tools-next]$
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20240807231823.898979-1-ak@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
In that case we have a set of placeholder functions, one of them uses a
'Dwarf_Addr' type that is not present as it is defined in the missing
DWARF libraries, so provide a placeholder typedef for that as well.
The build error before this patch:
In file included from util/annotate.c:28:
util/debuginfo.h:44:46: error: unknown type name ‘Dwarf_Addr’
44 | Dwarf_Addr *offs __maybe_unused,
| ^~~~~~~~~~
make[6]: *** [/home/acme/git/perf-tools-next/tools/build/Makefile.build:106: util/annotate.o] Error 1
make[6]: *** Waiting for unfinished jobs....
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Link: https://lore.kernel.org/lkml/CAM9d7ciushSwEfj7yW4rtDEJBTcCB991V4cswwFEL+cv6QF2pg@mail.gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
__pci_reset_bus() calls pci_bridge_secondary_bus_reset() to perform the
reset and also waits for the Secondary Bus to become again accessible.
__pci_reset_bus() then calls pci_bus_restore_locked() that restores the PCI
devices connected to the bus, and if necessary, recursively restores also
the subordinate buses and their devices.
The logic in pci_bus_restore_locked() does not take into account that after
restoring a device on one level, there might be another Link Downstream
that can only start to come up after restore has been performed for its
Downstream Port device. That is, the Link may require additional wait until
it becomes accessible.
Similarly, pci_slot_restore_locked() lacks wait.
Amend pci_bus_restore_locked() and pci_slot_restore_locked() to wait for
the Secondary Bus before recursively performing the restore of that bus.
Fixes: 090a3c5322 ("PCI: Add pci_reset_slot() and pci_reset_bus()")
Link: https://lore.kernel.org/r/20240808121708.2523-1-ilpo.jarvinen@linux.intel.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
The critical section which requires the VM dma-resv is the call
xe_lrc_create in __xe_exec_queue_init. Move this lock to
__xe_exec_queue_init holding it just around xe_lrc_create. Not only is
good practice, this also fixes a locking double of the VM dma-resv in
the error paths of __xe_exec_queue_init as xe_lrc_put tries to acquire
this too resulting in a deadlock.
Fixes: dd08ebf6c3 ("drm/xe: Introduce a new DRM driver for Intel GPUs")
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240724152831.1848325-1-matthew.brost@intel.com
ast currently ioremaps two PCI BARs using pcim_iomap(). It does not perform
a request on the regions, however, which would make the driver a bit more
robust.
PCI now offers pcim_iomap_region(), a managed function which both requests
and ioremaps a BAR.
Replace pcim_iomap() with pcim_iomap_region().
Suggested-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20240807083018.8734-4-pstanner@redhat.com
Signed-off-by: Philipp Stanner <pstanner@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Dave Airlie <airlied@redhat.com>
pcim_iomap_regions() is a complicated function that uses a bit mask to
determine the BARs the user wishes to request and ioremap. Almost all users
only ever set a single bit in that mask, making that mechanism
questionable.
pcim_iomap_region() is now available as a more simple replacement.
Make pcim_iomap_region() a public function.
Mark pcim_iomap_regions() as deprecated.
Link: https://lore.kernel.org/r/20240807083018.8734-2-pstanner@redhat.com
Signed-off-by: Philipp Stanner <pstanner@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
vboxvideo currently does not reserve its PCI BAR through a region request.
Implement the request through the managed function pcim_request_region().
Link: https://lore.kernel.org/r/20240729093625.17561-5-pstanner@redhat.com
Signed-off-by: Philipp Stanner <pstanner@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
pcim_request_region() is the managed counterpart of pci_request_region().
It is currently only used internally for PCI.
It can be useful for a number of drivers and exporting it is a step towards
deprecating more complicated functions.
Make pcim_request_region() a public function.
Link: https://lore.kernel.org/r/20240729093625.17561-4-pstanner@redhat.com
Signed-off-by: Philipp Stanner <pstanner@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Bjorn suggests using pdev->dev.groups for attribute_groups constructed on
PCI device enumeration:
"Is it feasible to build an attribute group in pci_doe_init() and
add it to dev->groups so device_add() will automatically add them?"
https://lore.kernel.org/r/20231019165829.GA1381099@bhelgaas
Unfortunately on s390, pcibios_device_add() usurps pdev->dev.groups for
arch-specific attribute_groups, preventing its use for anything else.
Introduce an ARCH_PCI_DEV_GROUPS macro which arches can define in
<asm/pci.h>. The macro is visible in drivers/pci/pci-sysfs.c through the
inclusion of <linux/pci.h>, which in turn includes <asm/pci.h>.
On s390, define the macro to the three attribute_groups previously assigned
to pdev->dev.groups. Thereby pdev->dev.groups is made available for use by
the PCI core.
As a side effect, arch/s390/pci/pci_sysfs.c no longer needs to be compiled
into the kernel if CONFIG_SYSFS=n.
Link: https://lore.kernel.org/r/7b970f7923e373d1b23784721208f93418720485.1722870934.git.lukas@wunner.de
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Niklas Schnelle <schnelle@linux.ibm.com>
The dax is only supported on pfn type pmem devices since commit
f467fee48d ("block: move the dax flag to queue_limits"). Trying
to mount DAX filesystem fails with this error:
mount: : wrong fs type, bad option, bad superblock on /dev/pmem7,
missing codepage or helper program, or other error.
dmesg(1) may have more information after failed mount system call.
dmesg: EXT4-fs (pmem7): DAX unsupported by block device.
Fix the problem by adding dax flag setting for the missed case.
Fixes: f467fee48d ("block: move the dax flag to queue_limits")
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Tested-by: Ira Weiny <ira.weiny@intel.com>
Tested-by: Alison Schofield <alison.schofield@intel.com>
Link: https://patch.msgid.link/20240809031155.2837271-1-chengzhihao1@huawei.com
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
The ranges description states that "at least one non-prefetchable memory
and one or both of prefetchable memory and IO space may also be provided."
However, it should not limit the maximum number of ranges to 3.
Freescale LS1028 and iMX95 use more than 3 ranges because the space splits
some discontinuous prefetchable and non-prefetchable segments.
Drop minItems and maxItems. The number of entries will be limited to 32
in pci-bus-common.yaml in dtschema, which should be sufficient.
Fixes this CHECK_DTBS warning:
arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dtb: pcie@1f0000000: ranges: [[2181038080, 1, 4160749568, 1, 4160749568, 0, 1441792], [3254779904, 1, 4162191360, 1, 4162191360, 0, 458752], [2181038080, 1, 4162650112, 1, 4162650112, 0, 131072], [3254779904, 1, 4162781184, 1, 4162781184, 0, 131072], [2181038080, 1, 4162912256, 1, 4162912256, 0, 131072], [3254779904, 1, 4163043328, 1, 4163043328, 0, 131072], [2181038080, 1, 4227858432, 1, 4227858432, 0, 4194304]] is too long
Link: https://lore.kernel.org/r/20240704164019.611454-1-Frank.Li@nxp.com
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Implement bch2_accounting_invalid(); check for junk at the end, and
replicas accounting entries in particular need to be checked or we'll
pop asserts later.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Merge tag 'bitmap-6.11-rc' of https://github.com/norov/linux
Pull cpumask fix from Yury Norov:
"Fix for cpumask merge"
[ Mea culpa, this was my mismerge due to too much cut-and-paste - Linus ]
* tag 'bitmap-6.11-rc' of https://github.com/norov/linux:
cpumask: Fix crash on updating CPU enabled mask
Change the default EPP (energy-performence preference) value for the
Emerald Rapids processor in the intel_pstate driver which should improve
both the performance and energy efficiency (Pedro Henrique Kopper).
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Merge tag 'pm-6.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fix from Rafael Wysocki:
"Change the default EPP (energy-performence preference) value for the
Emerald Rapids processor in the intel_pstate driver.
Thisshould improve both the performance and energy efficiency (Pedro
Henrique Kopper)"
* tag 'pm-6.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: intel_pstate: Update Balance performance EPP for Emerald Rapids
There are two more changes to the syscall.tbl conversion: the
'__NR_newfstat' in the previous bugfix was a mistake and gets reverted
now, after triple-checking that the contents are now back to what they
were on all architectures. The __NR_nfsservctl definition is not really
needed but came up in the same discussion as it had previously been
defined in uapi/asm-generic/unistd.h and tested for in user space.
TThere are a few more symbols that used to be defined in the old
unistd.h file, but that are never defined on any other architecture
using syscall.tbl format. These used to be needed inside of the kernel:
__NR_syscalls
__NR_arch_specific_syscall
__NR3264_*
Searching for these on https://codesearch.debian.net/ shows a few packages
(rustc, golang, clamav, libseccomp, librsvg, strace) that duplicate all
the macros from asm/unistd.h, but nothing that actually uses the macros,
so I concluded that they are fine to omit after all.
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Merge tag 'asm-generic-fixes-6.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull asm-generic fixes from Arnd Bergmann:
"There are two more changes to the syscall.tbl conversion: the
'__NR_newfstat' in the previous bugfix was a mistake and gets reverted
now, after triple-checking that the contents are now back to what they
were on all architectures. The __NR_nfsservctl definition is not
really needed but came up in the same discussion as it had previously
been defined in uapi/asm-generic/unistd.h and tested for in user
space.
There are a few more symbols that used to be defined in the old
unistd.h file, but that are never defined on any other architecture
using syscall.tbl format. These used to be needed inside of the
kernel:
__NR_syscalls
__NR_arch_specific_syscall
__NR3264_*
Searching for these on https://codesearch.debian.net/ shows a few
packages (rustc, golang, clamav, libseccomp, librsvg, strace) that
duplicate all the macros from asm/unistd.h, but nothing that actually
uses the macros, so I concluded that they are fine to omit after all"
* tag 'asm-generic-fixes-6.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
syscalls: add back legacy __NR_nfsservctl macro
syscalls: fix fstat() entry again
There are three sets of patches for the soc tree:
- Marek Behún addresses multiple build time regressions caused
by changes to the cznic turris-omnia support
- Dmitry Torokhov fixes a regression in the legacy "gumstix"
board code he cleaned up earlier
- The TI K3 maintainers found multiple bugs in the in gpio,
audio and pcie devicetree nodes.
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Merge tag 'arm-fixes-6.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Arnd Bergmann:
"There are three sets of patches for the soc tree:
- Marek Behún addresses multiple build time regressions caused by
changes to the cznic turris-omnia support
- Dmitry Torokhov fixes a regression in the legacy "gumstix" board
code he cleaned up earlier
- The TI K3 maintainers found multiple bugs in the in gpio, audio and
pcie devicetree nodes"
* tag 'arm-fixes-6.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
ARM: pxa/gumstix: fix attaching properties to vbus gpio device
doc: platform: cznic: turris-omnia-mcu: Use double backticks for attribute value
doc: platform: cznic: turris-omnia-mcu: Fix sphinx-build warning
platform: cznic: turris-omnia-mcu: Make GPIO code optional
platform: cznic: turris-omnia-mcu: Make poweroff and wakeup code optional
platform: cznic: turris-omnia-mcu: Make TRNG code optional
platform: cznic: turris-omnia-mcu: Make watchdog code optional
arm64: dts: ti: k3-j784s4-main: Correct McASP DMAs
arm64: dts: ti: k3-j722s: Fix gpio-range for main_pmx0
arm64: dts: ti: k3-am62p: Fix gpio-range for main_pmx0
arm64: dts: ti: k3-am62p: Add gpio-ranges for mcu_gpio0
arm64: dts: ti: k3-am62-verdin-dahlia: Keep CTRL_SLEEP_MOCI# regulator on
arm64: dts: ti: k3-j784s4-evm: Consolidate serdes0 references
arm64: dts: ti: k3-j784s4-evm: Assign only lanes 0 and 1 to PCIe1
If the "tool->data" allocation fails then there is no need to call
osnoise_free_top() and, in fact, doing so will lead to a NULL dereference.
Cc: stable@vger.kernel.org
Cc: John Kacur <jkacur@redhat.com>
Cc: "Luis Claudio R. Goncalves" <lgoncalv@redhat.com>
Cc: Clark Williams <williams@redhat.com>
Fixes: 1eceb2fc2c ("rtla/osnoise: Add osnoise top mode")
Link: https://lore.kernel.org/f964ed1f-64d2-4fde-ad3e-708331f8f358@stanley.mountain
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
When running the following:
# cd /sys/kernel/tracing/
# echo 1 > events/sched/sched_waking/enable
# echo 1 > events/sched/sched_switch/enable
# echo 0 > tracing_on
# dd if=per_cpu/cpu0/trace_pipe_raw of=/tmp/raw0.dat
The dd task would get stuck in an infinite loop in the kernel. What would
happen is the following:
When ring_buffer_read_page() returns -1 (no data) then a check is made to
see if the buffer is empty (as happens when the page is not full), it will
call wait_on_pipe() to wait until the ring buffer has data. When it is it
will try again to read data (unless O_NONBLOCK is set).
The issue happens when there's a reader and the file descriptor is closed.
The wait_on_pipe() will return when that is the case. But this loop will
continue to try again and wait_on_pipe() will again return immediately and
the loop will continue and never stop.
Simply check if the file was closed before looping and exit out if it is.
Cc: stable@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://lore.kernel.org/20240808235730.78bf63e5@rorschach.local.home
Fixes: 2aa043a55b ("tracing/ring-buffer: Fix wait_on_pipe() race")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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Merge tag 'block-6.11-20240809' of git://git.kernel.dk/linux
Pull block fixes from Jens Axboe:
"Just a set of cleanups for blk-throttle and nvme structures"
* tag 'block-6.11-20240809' of git://git.kernel.dk/linux:
nvme: reorganize nvme_ns_head fields
nvme: change data type of lba_shift
nvme: remove a field from nvme_ns_head
nvme: remove unused parameter
blk-throttle: remove more latency dead-code
It turns out that the WARN_ON_ONCE() call in css_release_work_fn
introduced by commit ab03125268 ("cgroup: Show # of subsystem CSSes
in cgroup.stat") is incorrect. Although css->nr_descendants must be
0 when a css is released and ready to be freed, the corresponding
cgrp->nr_dying_subsys[ss->id] may not be 0 if a subsystem is activated
and deactivated multiple times with one or more of its previous
activation leaving behind dying csses.
Fix the incorrect warning by removing the cgrp->nr_dying_subsys check.
Fixes: ab03125268 ("cgroup: Show # of subsystem CSSes in cgroup.stat")
Closes: https://lore.kernel.org/cgroups/6f301773-2fce-4602-a391-8af7ef00b2fb@redhat.com/T/#t
Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
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Merge tag 'io_uring-6.11-20240809' of git://git.kernel.dk/linux
Pull io_uring fixes from Jens Axboe:
"Nothing major in here, just two fixes for ensuring that bundle
recv/send requests always get marked for cleanups, and a single fix to
ensure that sends with provided buffers only pick a single buffer
unless the bundle option has been enabled"
* tag 'io_uring-6.11-20240809' of git://git.kernel.dk/linux:
io_uring/net: don't pick multiple buffers for non-bundle send
io_uring/net: ensure expanded bundle send gets marked for cleanup
io_uring/net: ensure expanded bundle recv gets marked for cleanup
A collection of lots of small changes, almost all device-specific.
- A series of fixes for ASoC Qualcomm stuff
- Various fixes for Cirrus ASoC and HD-audio codecs
- A few AMD ASoC quirks and usual HD-audio quirks
- Other misc fixes, including a long-time regression in USB-audio
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Merge tag 'sound-6.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A collection of lots of small changes, almost all device-specific:
- A series of fixes for ASoC Qualcomm stuff
- Various fixes for Cirrus ASoC and HD-audio codecs
- A few AMD ASoC quirks and usual HD-audio quirks
- Other misc fixes, including a long-time regression in USB-audio"
* tag 'sound-6.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (39 commits)
ASoC: cs35l56: Patch CS35L56_IRQ1_MASK_18 to the default value
ASoC: meson: axg-fifo: fix irq scheduling issue with PREEMPT_RT
MAINTAINERS: Update Cirrus Logic parts to linux-sound mailing list
ASoC: dt-bindings: qcom,wcd939x: Correct reset GPIO polarity in example
ASoC: dt-bindings: qcom,wcd938x: Correct reset GPIO polarity in example
ASoC: dt-bindings: qcom,wcd934x: Correct reset GPIO polarity in example
ASoC: dt-bindings: qcom,wcd937x: Correct reset GPIO polarity in example
ASoC: amd: yc: Add quirk entry for OMEN by HP Gaming Laptop 16-n0xxx
ASoC: codecs: ES8326: button detect issue
ASoC: amd: yc: Support mic on Lenovo Thinkpad E14 Gen 6
ALSA: usb-audio: Re-add ScratchAmp quirk entries
ALSA: hda/realtek: Add Framework Laptop 13 (Intel Core Ultra) to quirks
ALSA: hda/hdmi: Yet more pin fix for HP EliteDesk 800 G4
ALSA: hda: Add HP MP9 G4 Retail System AMS to force connect list
ASoC: cs35l56: Handle OTP read latency over SoundWire
ASoC: codecs: lpass-macro: fix missing codec version
ALSA: line6: Fix racy access to midibuf
ASoC: cs-amp-lib: Fix NULL pointer crash if efi.get_variable is NULL
ASoC: cs35l56: Stop creating ALSA controls for firmware coefficients
ASoC: wm_adsp: Add control_add callback and export wm_adsp_control_add()
...
The recursive aes-arm-bs module load situation reported by Russell King
is getting fixed in the crypto layer, but this in the meantime fixes the
"recursive load hangs forever" by just making the waiting for the first
module load be interruptible.
This should now match the old behavior before commit 9b9879fc03
("modules: catch concurrent module loads, treat them as idempotent"),
which used the different "wait for module to be ready" code in
module_patient_check_exists().
End result: a recursive module load will still block, but now a signal
will interrupt it and fail the second module load, at which point the
first module will successfully complete loading.
Fixes: 9b9879fc03 ("modules: catch concurrent module loads, treat them as idempotent")
Cc: Russell King <linux@armlinux.org.uk>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
