SMD edge contains subnodes representing devices related to the remote
processor. With limietd number of remote processors, there is a limited
set of such devices.
List all of them in smd-edge bindings so schema can strictly check for
subnodes.
Additional benefit is requirement of "qcom,smd-channels" for such
subnodes, because their schema cannot enforce it (few devices like APR
or FastRPC can be part of either SMD or GLINK edge).
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220909125403.803158-8-krzysztof.kozlowski@linaro.org
Signed-off-by: Rob Herring <robh@kernel.org>
GLINK edge contains subnodes representing devices related to the remote
processor. Each of such device (e.g. APR or FastRPC) must have
a "qcom,glink-channels" property. However the APR or FastRPC device can
be also part of other communication - SMD - thus their schema does not
require "qcom,glink-channels".
To make the GLINK edge bindings strict, require "qcom,glink-channels"
for its children.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220909125403.803158-6-krzysztof.kozlowski@linaro.org
Signed-off-by: Rob Herring <robh@kernel.org>
If the properties 'linux,initrd-start' and 'linux,initrd-end' of
the chosen node populated from the bootloader, eg. U-Boot, are so that
start > end, then the phys_initrd_size calculated from end - start is
negative that subsequently gets converted to a high positive value for
being unsigned long long. Then, the memory region with the (invalid)
size is added to the bootmem and attempted being paged in paging_init()
that results in the kernel fault.
For example, on the FVP ARM64 system I'm running, the U-Boot populates
the 'linux,initrd-start' with 8800_0000 and 'linux,initrd-end' with 0.
The phys_initrd_size calculated is then ffff_ffff_7800_0000
(= 0 - 8800_0000 = -8800_0000 + ULLONG_MAX + 1). paging_init() then
attempts to map the address 8800_0000 + ffff_ffff_7800_0000 and oops'es
as below.
It should be stressed, it is generally a fault of the bootloader's with
the kernel relying on it, however we should not allow the bootloader's
misconfiguration to lead to the kernel oops. Not only the kernel should be
bullet proof against it but also finding the root cause of the paging
fault spanning over the bootloader, DT, and kernel may happen is not so
easy.
Unable to handle kernel paging request at virtual address fffffffefe43c000
Mem abort info:
ESR = 0x96000007
EC = 0x25: DABT (current EL), IL = 32 bits
SET = 0, FnV = 0
EA = 0, S1PTW = 0
Data abort info:
ISV = 0, ISS = 0x00000007
CM = 0, WnR = 0
swapper pgtable: 4k pages, 39-bit VAs, pgdp=0000000080e3d000
[fffffffefe43c000] pgd=0000000080de9003, pud=0000000080de9003
Unable to handle kernel paging request at virtual address ffffff8000de9f90
Mem abort info:
ESR = 0x96000005
EC = 0x25: DABT (current EL), IL = 32 bits
SET = 0, FnV = 0
EA = 0, S1PTW = 0
Data abort info:
ISV = 0, ISS = 0x00000005
CM = 0, WnR = 0
swapper pgtable: 4k pages, 39-bit VAs, pgdp=0000000080e3d000
[ffffff8000de9f90] pgd=0000000000000000, pud=0000000000000000
Internal error: Oops: 96000005 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 0 Comm: swapper Not tainted 5.4.51-yocto-standard #1
Hardware name: FVP Base (DT)
pstate: 60000085 (nZCv daIf -PAN -UAO)
pc : show_pte+0x12c/0x1b4
lr : show_pte+0x100/0x1b4
sp : ffffffc010ce3b30
x29: ffffffc010ce3b30 x28: ffffffc010ceed80
x27: fffffffefe43c000 x26: fffffffefe43a028
x25: 0000000080bf0000 x24: 0000000000000025
x23: ffffffc010b8d000 x22: ffffffc010e3d000
x23: ffffffc010b8d000 x22: ffffffc010e3d000
x21: 0000000080de9000 x20: ffffff7f80000f90
x19: fffffffefe43c000 x18: 0000000000000030
x17: 0000000000001400 x16: 0000000000001c00
x15: ffffffc010cef1b8 x14: ffffffffffffffff
x13: ffffffc010df1f40 x12: ffffffc010df1b70
x11: ffffffc010ce3b30 x10: ffffffc010ce3b30
x9 : 00000000ffffffc8 x8 : 0000000000000000
x7 : 000000000000000f x6 : ffffffc010df16e8
x5 : 0000000000000000 x4 : 0000000000000000
x3 : 00000000ffffffff x2 : 0000000000000000
x1 : 0000008080000000 x0 : ffffffc010af1d68
Call trace:
show_pte+0x12c/0x1b4
die_kernel_fault+0x54/0x78
__do_kernel_fault+0x11c/0x128
do_translation_fault+0x58/0xac
do_mem_abort+0x50/0xb0
el1_da+0x1c/0x90
__create_pgd_mapping+0x348/0x598
paging_init+0x3f0/0x70d0
setup_arch+0x2c0/0x5d4
start_kernel+0x94/0x49c
Code: 92748eb5 900052a0 9135a000 cb010294 (f8756a96)
Signed-off-by: Marek Bykowski <marek.bykowski@gmail.com>
Link: https://lore.kernel.org/r/20220909023358.76881-1-marek.bykowski@gmail.com
Signed-off-by: Rob Herring <robh@kernel.org>
For K3 devices the clock fed into the RNG module is shared with the rest
of the Crypto module, it is not dedicated to the RNG module and cannot be
controlled by the RNG driver. The driver does not require this clock to
always be defined and the DT binding should not force it either.
Remove this so we can start dropping out the clock properties as needed.
Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20220901171041.32056-1-afd@ti.com
Signed-off-by: Rob Herring <robh@kernel.org>
Convert Qualcomm FastRPC bindings to yaml format, so that we could validate
dt-entries correctly and any future additions can go into yaml format.
Use compute-cb@ subnodes instead of just cb@. Add qcom,glink-channels and
qcom,smd-channels missing properties to make sure dtbs_check doesn't fail
right off the bat. Correct the name of the parent node in the example from
smd-edge to glink-edge.
Since now the qcom,fastrpc bindings document is yaml, update the
reference to it in qcom,glink-edge and also use $ref.
Also update the MAINTAINERS file to point to the yaml version.
Co-developed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Co-developed-by: David Heidelberg <david@ixit.cz>
Signed-off-by: David Heidelberg <david@ixit.cz>
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220907074301.3996021-1-abel.vesa@linaro.org
Signed-off-by: Rob Herring <robh@kernel.org>
Make OF unittest trigger the new TAINT_TEST taint when OF unittest runs.
Due to OF unittest not being intended to run on production systems, and
potentially causing problems (or security issues like leaking kernel
addresses), the kernel's state should not be considered safe for
production use after OF unittest runs.
Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Link: https://lore.kernel.org/r/20220823200152.3465751-1-frowand.list@gmail.com
Signed-off-by: Rob Herring <robh@kernel.org>
A GICv3 implementation without virtualization, such as the base QEMU
virt machine (without -M virtualization=on), does not issue maintenance
interrupts. Therefore its device-tree node does not need an 'interrupts'
property. Currently, validating the QEMU virt device-tree throws a
warning that 'interrupts' is missing. Make it optional.
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220822152224.507497-3-jean-philippe@linaro.org
Even PSCI v1.0 compliant implementations may support v0.1 clients
(i.e. "arm,psci"). Relax the compatible schema such that an
implementation can claim 1.0, 0.2, and 0.1 compatibility.
In the process, the schema can be simplified a bit by using 'minItems'
instead of separate 'oneOf' entries.
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220803201639.2552581-1-robh@kernel.org
Radix tree header includes gfp.h for __GFP_BITS_SHIFT only. Now we
have gfp_types.h for this.
Fixes powerpc allmodconfig build:
In file included from include/linux/nodemask.h:97,
from include/linux/mmzone.h:17,
from include/linux/gfp.h:7,
from include/linux/radix-tree.h:12,
from include/linux/idr.h:15,
from include/linux/kernfs.h:12,
from include/linux/sysfs.h:16,
from include/linux/kobject.h:20,
from include/linux/pci.h:35,
from arch/powerpc/kernel/prom_init.c:24:
include/linux/random.h: In function 'add_latent_entropy':
>> include/linux/random.h:25:46: error: 'latent_entropy' undeclared (first use in this function); did you mean 'add_latent_entropy'?
25 | add_device_randomness((const void *)&latent_entropy, sizeof(latent_entropy));
| ^~~~~~~~~~~~~~
| add_latent_entropy
include/linux/random.h:25:46: note: each undeclared identifier is reported only once for each function it appears in
Reported-by: kernel test robot <lkp@intel.com>
CC: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Yury Norov <yury.norov@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull vfs lseek fix from Al Viro:
"Fix proc_reg_llseek() breakage. Always had been possible if somebody
left NULL ->proc_lseek, became a practical issue now"
* tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
take care to handle NULL ->proc_lseek()
Easily done now, just by clearing FMODE_LSEEK in ->f_mode
during proc_reg_open() for such entries.
Fixes: 868941b144 "fs: remove no_llseek"
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Pull more xen updates from Juergen Gross:
- fix the handling of the "persistent grants" feature negotiation
between Xen blkfront and Xen blkback drivers
- a cleanup of xen.config and adding xen.config to Xen section in
MAINTAINERS
- support HVMOP_set_evtchn_upcall_vector, which is more compliant to
"normal" interrupt handling than the global callback used up to now
- further small cleanups
* tag 'for-linus-6.0-rc1b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
MAINTAINERS: add xen config fragments to XEN HYPERVISOR sections
xen: remove XEN_SCRUB_PAGES in xen.config
xen/pciback: Fix comment typo
xen/xenbus: fix return type in xenbus_file_read()
xen-blkfront: Apply 'feature_persistent' parameter when connect
xen-blkback: Apply 'feature_persistent' parameter when connect
xen-blkback: fix persistent grants negotiation
x86/xen: Add support for HVMOP_set_evtchn_upcall_vector
Pull more perf tool updates from Arnaldo Carvalho de Melo:
- 'perf c2c' now supports ARM64, adjust its output to cope with
differences with what is in x86_64. Now go find false sharing on
ARM64 (at least Neoverse) as well!
- Refactor the JSON processing, making the output more compact and thus
reducing the size of the resulting perf binary
- Improvements for 'perf offcpu' profiling, including tracking child
processes
- Update Intel JSON metrics and events files for broadwellde,
broadwellx, cascadelakex, haswellx, icelakex, ivytown, jaketown,
knightslanding, sapphirerapids, skylakex and snowridgex
- Add 'perf stat' JSON output and a 'perf test' entry for it
- Ignore memfd and anonymous mmap events if jitdump present
- Refactor 'perf test' shell tests allowing subdirs
- Fix an error handling path in 'parse_perf_probe_command()'
- Fixes for the guest Intel PT tracing patchkit in the 1st batch of
this merge window
- Print debuginfod queries if -v option is used, to explain delays in
processing when debuginfo servers are enabled to fetch DSOs with
richer symbol tables
- Improve error message for 'perf record -p not_existing_pid'
- Fix openssl and libbpf feature detection
- Add PMU pai_crypto event description for IBM z16 on 'perf list'
- Fix typos and duplicated words on comments in various places
* tag 'perf-tools-fixes-for-v6.0-2022-08-13' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (81 commits)
perf test: Refactor shell tests allowing subdirs
perf vendor events: Update events for snowridgex
perf vendor events: Update events and metrics for skylakex
perf vendor events: Update metrics for sapphirerapids
perf vendor events: Update events for knightslanding
perf vendor events: Update metrics for jaketown
perf vendor events: Update metrics for ivytown
perf vendor events: Update events and metrics for icelakex
perf vendor events: Update events and metrics for haswellx
perf vendor events: Update events and metrics for cascadelakex
perf vendor events: Update events and metrics for broadwellx
perf vendor events: Update metrics for broadwellde
perf jevents: Fold strings optimization
perf jevents: Compress the pmu_events_table
perf metrics: Copy entire pmu_event in find metric
perf pmu-events: Hide the pmu_events
perf pmu-events: Don't assume pmu_event is an array
perf pmu-events: Move test events/metrics to JSON
perf test: Use full metric resolution
perf pmu-events: Hide pmu_events_map
...
Pull powerpc fixes from Michael Ellerman:
- Ensure we never emit lwarx with EH=1 on 32-bit, because some 32-bit
CPUs trap on it rather than ignoring it as they should.
- Fix ftrace when building with clang, which was broken by some
refactoring.
- A couple of other minor fixes.
Thanks to Christophe Leroy, Naveen N. Rao, Nick Desaulniers, Ondrej
Mosnacek, Pali Rohár, Russell Currey, and Segher Boessenkool.
* tag 'powerpc-6.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/kexec: Fix build failure from uninitialised variable
powerpc/ppc-opcode: Fix PPC_RAW_TW()
powerpc64/ftrace: Fix ftrace for clang builds
powerpc: Make eh value more explicit when using lwarx
powerpc: Don't hide eh field of lwarx behind a macro
powerpc: Fix eh field when calling lwarx on PPC32
Pull /proc/mounts fix from Al Viro:
"Fix for /proc/mounts escaping - escape the '#' character too"
* tag 'pull-work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
vfs: escape hash as well
Pull more cifs updates from Steve French:
- two fixes for stable, one for a lock length miscalculation, and
another fixes a lease break timeout bug
- improvement to handle leases, allows the close timeout to be
configured more safely
- five restructuring/cleanup patches
* tag '5.20-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6:
cifs: Do not access tcon->cfids->cfid directly from is_path_accessible
cifs: Add constructor/destructors for tcon->cfid
SMB3: fix lease break timeout when multiple deferred close handles for the same file.
smb3: allow deferred close timeout to be configurable
cifs: Do not use tcon->cfid directly, use the cfid we get from open_cached_dir
cifs: Move cached-dir functions into a separate file
cifs: Remove {cifs,nfs}_fscache_release_page()
cifs: fix lock length calculation
Enable multipage folio support for the afs filesystem.
Support has already been implemented in netfslib, fscache and cachefiles
and in most of afs, but I've waited for Matthew Wilcox's latest folio
changes.
Note that it does require a change to afs_write_begin() to return the
correct subpage. This is a "temporary" change as we're working on
getting rid of the need for ->write_begin() and ->write_end()
completely, at least as far as network filesystems are concerned - but
it doesn't prevent afs from making use of the capability.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Tested-by: kafs-testing@auristor.com
Cc: Marc Dionne <marc.dionne@auristor.com>
Cc: linux-afs@lists.infradead.org
Link: https://lore.kernel.org/lkml/2274528.1645833226@warthog.procyon.org.uk/
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull timer fixes from Ingo Molnar:
"Misc timer fixes:
- fix a potential use-after-free bug in posix timers
- correct a prototype
- address a build warning"
* tag 'timers-urgent-2022-08-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
posix-cpu-timers: Cleanup CPU timers before freeing them during exec
time: Correct the prototype of ns_to_kernel_old_timeval and ns_to_timespec64
posix-timers: Make do_clock_gettime() static
