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Merge our fixes branch, primarily to bring in the powernv CPU hotplug
warning fix.
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Some of our scripts are passed $objdump and then call it as
"$objdump". This doesn't work if it contains spaces because we're
using ccache, for example you get errors such as:
./arch/powerpc/tools/relocs_check.sh: line 48: ccache ppc64le-objdump: No such file or directory
./arch/powerpc/tools/unrel_branch_check.sh: line 26: ccache ppc64le-objdump: No such file or directory
Fix it by not quoting the string when we expand it, allowing the shell
to do the right thing for us.
Fixes: a71aa05e1416 ("powerpc: Convert relocs_check to a shell script using grep")
Fixes: 4ea80652dc75 ("powerpc/64s: Tool to flag direct branches from unrelocated interrupt vectors")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20191024004730.32135-1-mpe@ellerman.id.au
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As part of the uapi we export a lot of PT_xx defines for each register
in struct pt_regs. These are expressed as an index from gpr[0], in
units of unsigned long.
Currently there's nothing tying the values of those defines to the
actual layout of the struct.
But we *don't* want to change the uapi defines to derive the PT_xx
values based on the layout of the struct, those values are ABI and
must never change.
Instead we want to do the reverse, make sure that the layout of the
struct never changes vs the PT_xx defines. So add build time checks of
that.
This probably seems paranoid, but at least once in the past someone
has sent a patch that would have broken the ABI if it hadn't been
spotted. Although it probably would have been detected via testing,
it's preferable to just quash any issues at the source.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20191030111231.22720-1-mpe@ellerman.id.au
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`pt_regs_check` is a dummy function, its purpose is to break the build
if struct pt_regs and struct user_pt_regs don't match.
This function has no functionnal purpose, and will get eliminated at
link time or after init depending on CONFIG_LD_DEAD_CODE_DATA_ELIMINATION
This commit adds a prototype to fix warning at W=1:
arch/powerpc/kernel/ptrace.c:3339:13: error: no previous prototype for ‘pt_regs_check’ [-Werror=missing-prototypes]
Suggested-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Mathieu Malaterre <malat@debian.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20181208154624.6504-1-malat@debian.org
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Commit e78a7614f3876 ("idle: Prevent late-arriving interrupts from
disrupting offline") changes arch_cpu_idle_dead to be called with
interrupts disabled, which triggers the WARN in pnv_smp_cpu_kill_self.
Fix this by fixing up irq_happened after hard disabling, rather than
requiring there are no pending interrupts, similarly to what was done
done until commit 2525db04d1cc5 ("powerpc/powernv: Simplify lazy IRQ
handling in CPU offline").
Fixes: e78a7614f3876 ("idle: Prevent late-arriving interrupts from disrupting offline")
Reported-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[mpe: Add unexpected_mask rather than checking for known bad values,
change the WARN_ON() to a WARN_ON_ONCE()]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20191022115814.22456-1-npiggin@gmail.com
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The ultravisor will do an integrity check of the kernel image but we
relocated it so the check will fail. Restore the original image by
relocating it back to the kernel virtual base address.
This works because during build vmlinux is linked with an expected
virtual runtime address of KERNELBASE.
Fixes: 6a9c930bd775 ("powerpc/prom_init: Add the ESM call to prom_init")
Signed-off-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Tested-by: Michael Anderson <andmike@linux.ibm.com>
[mpe: Add IS_ENABLED() to fix the CONFIG_RELOCATABLE=n build]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190911163433.12822-1-bauerman@linux.ibm.com
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is full
With bolted hash page table entry, kernel currently only use primary hash group
when inserting the hash page table entry. In the rare case where kernel find all the
8 primary hash slot occupied by bolted entries, this can result in hash page
table insert failure for bolted entries. Avoid this by using the secondary hash
group.
This is different from what kernel does for the non-bolted mapping. With
non-bolted entries kernel will try secondary before removing an existing entry
from hash page table group. With bolted prefer primary hash group and hence
try to insert the page table entry by removing a slot from primary before trying
the secondary hash group.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20191024093542.29777-3-aneesh.kumar@linux.ibm.com
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If the hypervisor returned H_PTEG_FULL for H_ENTER hcall, retry a hash page table
insert by removing a random entry from the group.
After some runtime, it is very well possible to find all the 8 hash page table
entry slot in the hpte group used for mapping. Don't fail a bolted entry insert
in that case. With Storage class memory a user can find this error easily since
a namespace enable/disable is equivalent to memory add/remove.
This results in failures as reported below:
$ ndctl create-namespace -r region1 -t pmem -m devdax -a 65536 -s 100M
libndctl: ndctl_dax_enable: dax1.3: failed to enable
Error: namespace1.2: failed to enable
failed to create namespace: No such device or address
In kernel log we find the details as below:
Unable to create mapping for hot added memory 0xc000042006000000..0xc00004200d000000: -1
dax_pmem: probe of dax1.3 failed with error -14
This indicates that we failed to create a bolted hash table entry for direct-map
address backing the namespace.
We also observe failures such that not all namespaces will be enabled with
ndctl enable-namespace all command.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20191024093542.29777-2-aneesh.kumar@linux.ibm.com
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No functional change in this patch.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20191024093542.29777-1-aneesh.kumar@linux.ibm.com
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accumulate_stolen_time() is called prior to interrupt state being
reconciled, which can trip the warning in arch_local_irq_restore():
WARNING: CPU: 5 PID: 1017 at arch/powerpc/kernel/irq.c:258 .arch_local_irq_restore+0x9c/0x130
...
NIP .arch_local_irq_restore+0x9c/0x130
LR .rb_start_commit+0x38/0x80
Call Trace:
.ring_buffer_lock_reserve+0xe4/0x620
.trace_function+0x44/0x210
.function_trace_call+0x148/0x170
.ftrace_ops_no_ops+0x180/0x1d0
ftrace_call+0x4/0x8
.accumulate_stolen_time+0x1c/0xb0
decrementer_common+0x124/0x160
For now just mark it as notrace. We may change the ordering to call it
after interrupt state has been reconciled, but that is a larger
change.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20191024055932.27940-1-mpe@ellerman.id.au
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We have several "defconfigs" that are not actually full defconfigs
they are just a base set of options which are then merged with other
fragments to produce a working defconfig.
The most obvious example is corenet_basic_defconfig which only
contains one symbol CONFIG_CORENET_GENERIC=y. And in fact if you build
it as a "defconfig" that one symbol ends up undefined, because its
prerequisites are missing.
There is also mpc85xx_base_defconfig which doesn't actually enable
CONFIG_PPC_85xx.
To avoid confusion, rename these config fragments to "foo_base.config"
to make it clearer that they are not full defconfigs and are instaed
just fragments that are used to generate real defconfigs.
Reported-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190528081614.26096-1-mpe@ellerman.id.au
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Add a debug config fragment that we can use to put useful debug
options into.
It can be used like:
# make foo_defconfig
# make debug.config
Currently the only option included is to enable debugfs SCOM access.
Suggested-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Andrew Donnellan <ajd@linux.ibm.com>
[mpe: Drop the special targets, just use the fragment directly]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190801045855.5822-1-ajd@linux.ibm.com
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With commit: 7cc7867fb061 ("mm/devm_memremap_pages: enable sub-section remap")
pmem namespaces are remapped in 2M chunks. On architectures like ppc64 we
can map the memmap area using 16MB hugepage size and that can cover
a memory range of 16G.
While enabling new pmem namespaces, since memory is added in sub-section chunks,
before creating a new memmap mapping, kernel should check whether there is an
existing memmap mapping covering the new pmem namespace. Currently, this is
validated by checking whether the section covering the range is already
initialized or not. Considering there can be multiple namespaces in the same
section this can result in wrong validation. Update this to check for
sub-sections in the range. This is done by checking for all pfns in the range we
are mapping.
We could optimize this by checking only just one pfn in each sub-section. But
since this is not fast-path we keep this simple.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190917123851.22553-1-aneesh.kumar@linux.ibm.com
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Xmon should be either fully or partially disabled depending on the
kernel lockdown state.
Put xmon into read-only mode for lockdown=integrity and prevent user
entry into xmon when lockdown=confidentiality. Xmon checks the lockdown
state on every attempted entry:
(1) during early xmon'ing
(2) when triggered via sysrq
(3) when toggled via debugfs
(4) when triggered via a previously enabled breakpoint
The following lockdown state transitions are handled:
(1) lockdown=none -> lockdown=integrity
set xmon read-only mode
(2) lockdown=none -> lockdown=confidentiality
clear all breakpoints, set xmon read-only mode,
prevent user re-entry into xmon
(3) lockdown=integrity -> lockdown=confidentiality
clear all breakpoints, set xmon read-only mode,
prevent user re-entry into xmon
Suggested-by: Andrew Donnellan <ajd@linux.ibm.com>
Signed-off-by: Christopher M. Riedl <cmr@informatik.wtf>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190907061124.1947-3-cmr@informatik.wtf
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Read-only mode should not prevent listing and clearing any active
breakpoints.
Tested-by: Daniel Axtens <dja@axtens.net>
Reviewed-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Christopher M. Riedl <cmr@informatik.wtf>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190907061124.1947-2-cmr@informatik.wtf
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Recent cleanup in the way EEH support is added to a device causes a
kernel oops when the cxl driver probes a device and creates virtual
devices discovered on the FPGA:
BUG: Kernel NULL pointer dereference at 0x000000a0
Faulting instruction address: 0xc000000000048070
Oops: Kernel access of bad area, sig: 7 [#1]
...
NIP eeh_add_device_late.part.9+0x50/0x1e0
LR eeh_add_device_late.part.9+0x3c/0x1e0
Call Trace:
_dev_info+0x5c/0x6c (unreliable)
pnv_pcibios_bus_add_device+0x60/0xb0
pcibios_bus_add_device+0x40/0x60
pci_bus_add_device+0x30/0x100
pci_bus_add_devices+0x64/0xd0
cxl_pci_vphb_add+0xe0/0x130 [cxl]
cxl_probe+0x504/0x5b0 [cxl]
local_pci_probe+0x6c/0x110
work_for_cpu_fn+0x38/0x60
The root cause is that those cxl virtual devices don't have a
representation in the device tree and therefore no associated pci_dn
structure. In eeh_add_device_late(), pdn is NULL, so edev is NULL and
we oops.
We never had explicit support for EEH for those virtual devices.
Instead, EEH events are reported to the (real) pci device and handled
by the cxl driver. Which can then forward to the virtual devices and
handle dependencies. The fact that we try adding EEH support for the
virtual devices is new and a side-effect of the recent cleanup.
This patch fixes it by skipping adding EEH support on powernv for
devices which don't have a pci_dn structure.
The cxl driver doesn't create virtual devices on pseries so this patch
doesn't fix it there intentionally.
Fixes: b905f8cdca77 ("powerpc/eeh: EEH for pSeries hot plug")
Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com>
Reviewed-by: Sam Bobroff <sbobroff@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20191016162833.22509-1-fbarrat@linux.ibm.com
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Make sure starting addr is aligned to segment boundary so that when
incrementing the segment, the starting address of the new segment is
below the end address. Otherwise the last segment might get missed.
Fixes: a68c31fc01ef ("powerpc/32s: Implement Kernel Userspace Access Protection")
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/067a1b09f15f421d40797c2d04c22d4049a1cee8.1571071875.git.christophe.leroy@c-s.fr
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Merge our fixes branch, to bring in the fixes for the KVM PCR bug and
the spufs crash.
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When issuing a BMC soft poweroff during IPL, the poweroff can be lost
so the machine would not poweroff.
This is because opal messages can be received before the opal-power
code registered its notifiers.
Fix it by buffering messages. If we receive a message and do not yet
have a handler for that type, store the message and replay when a
handler for that type is registered.
Signed-off-by: Deb McLemore <debmc@linux.vnet.ibm.com>
[mpe: Single unlock path in opal_message_notifier_register(), tweak
comments/formatting and change log.]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1526868278-4204-1-git-send-email-debmc@linux.vnet.ibm.com
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pkey_allows_readwrite() was first introduced in the commit 5586cf61e108
("powerpc: introduce execute-only pkey"), but the usage was removed
entirely in the commit a4fcc877d4e1 ("powerpc/pkeys: Preallocate
execute-only key").
Found by the "-Wunused-function" compiler warning flag.
Fixes: a4fcc877d4e1 ("powerpc/pkeys: Preallocate execute-only key")
Signed-off-by: Qian Cai <cai@lca.pw>
Acked-by: Ram Pai <linuxram@us.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1568733750-14580-1-git-send-email-cai@lca.pw
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At the beginning of setup_64.c, it has,
#ifdef DEBUG
#define DBG(fmt...) udbg_printf(fmt)
#else
#define DBG(fmt...)
#endif
where DBG() could be compiled away, and generate warnings,
arch/powerpc/kernel/setup_64.c: In function 'initialize_cache_info':
arch/powerpc/kernel/setup_64.c:579:49: warning: suggest braces around
empty body in an 'if' statement [-Wempty-body]
DBG("Argh, can't find dcache properties !\n");
^
arch/powerpc/kernel/setup_64.c:582:49: warning: suggest braces around
empty body in an 'if' statement [-Wempty-body]
DBG("Argh, can't find icache properties !\n");
Fix it by using the suggestions from Michael:
"Neither of those sites should use DBG(), that's not really early
boot code, they should just use pr_warn().
And the other uses of DBG() in initialize_cache_info() should just
be removed.
In smp_release_cpus() the entry/exit DBG's should just be removed,
and the spinning_secondaries line should just be pr_debug().
That would just leave the two calls in early_setup(). If we taught
udbg_printf() to return early when udbg_putc is NULL, then we could
just call udbg_printf() unconditionally and get rid of the DBG macro
entirely."
Suggested-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Qian Cai <cai@lca.pw>
[mpe: Split udbg change out into previous patch]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1563215552-8166-1-git-send-email-cai@lca.pw
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Make udbg_printf() check if udbg_putc is set, and if not just return.
This makes it safe to call udbg_printf() anytime, even when a udbg
backend has not been registered, which means we can avoid some ifdefs
at call sites.
Signed-off-by: Qian Cai <cai@lca.pw>
[mpe: Split out of larger patch, write change log]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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arch/powerpc/kernel/fadump.c file needs to be compiled in if 'config
FA_DUMP' or 'config PRESERVE_FA_DUMP' is set. The current syntax
achieves that but looks a bit odd. Fix it for better readability.
Signed-off-by: Hari Bathini <hbathini@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/157063484064.11906.3586824898111397624.stgit@hbathini.in.ibm.com
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FADump is supported on PowerNV platform. To fulfill this support, the
petitboot kernel must be FADump aware. Enable config PRESERVE_FA_DUMP
to make the petitboot kernel FADump aware.
Signed-off-by: Hari Bathini <hbathini@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/157062986936.23016.10146169203560084401.stgit@hbathini.in.ibm.com
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The spu_fs_context was not set in fc->fs_private, this caused a crash
when accessing ctx->mode in spufs_create_root().
Fixes: d2e0981c3b9a ("vfs: Convert spufs to use the new mount API")
Signed-off-by: Emmanuel Nicolet <emmanuel.nicolet@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20191008141342.GA266797@gmail.com
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A validation check to prevent out of bounds read/write inside
functions papr_scm_meta_{get,set}() is off-by-one that prevent reads
and writes to the last byte of the label area.
This bug manifests as a failure to probe a dimm when libnvdimm is
unable to read the entire config-area as advertised by
ND_CMD_GET_CONFIG_SIZE. This usually happens when there are large
number of namespaces created in the region backed by the dimm and the
label-index spans max possible config-area. An error of the form below
usually reported in the kernel logs:
[ 255.293912] nvdimm: probe of nmem0 failed with error -22
The patch fixes these validation checks there by letting libnvdimm
access the entire config-area.
Fixes: 53e80bd042773('powerpc/nvdimm: Add support for multibyte read/write for metadata')
Signed-off-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190927062002.3169-1-vaibhav@linux.ibm.com
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kvmhv_switch_to_host() in arch/powerpc/kvm/book3s_hv_rmhandlers.S
needs to set kvmppc_vcore->in_guest to 0 to signal secondary CPUs to
continue. This happens after resetting the PCR. Before commit
13c7bb3c57dc ("powerpc/64s: Set reserved PCR bits"), r0 would always
be 0 before it was stored to kvmppc_vcore->in_guest. However because
of this change in the commit:
/* Reset PCR */
ld r0, VCORE_PCR(r5)
- cmpdi r0, 0
+ LOAD_REG_IMMEDIATE(r6, PCR_MASK)
+ cmpld r0, r6
beq 18f
- li r0, 0
- mtspr SPRN_PCR, r0
+ mtspr SPRN_PCR, r6
18:
/* Signal secondary CPUs to continue */
stb r0,VCORE_IN_GUEST(r5)
We are no longer comparing r0 against 0 and loading it with 0 if it
contains something else. Hence when we store r0 to
kvmppc_vcore->in_guest, it might not be 0. This means that secondary
CPUs will not be signalled to continue. Those CPUs get stuck and
errors like the following are logged:
KVM: CPU 1 seems to be stuck
KVM: CPU 2 seems to be stuck
KVM: CPU 3 seems to be stuck
KVM: CPU 4 seems to be stuck
KVM: CPU 5 seems to be stuck
KVM: CPU 6 seems to be stuck
KVM: CPU 7 seems to be stuck
This can be reproduced with:
$ for i in `seq 1 7` ; do chcpu -d $i ; done ;
$ taskset -c 0 qemu-system-ppc64 -smp 8,threads=8 \
-M pseries,accel=kvm,kvm-type=HV -m 1G -nographic -vga none \
-kernel vmlinux -initrd initrd.cpio.xz
Fix by making sure r0 is 0 before storing it to
kvmppc_vcore->in_guest.
Fixes: 13c7bb3c57dc ("powerpc/64s: Set reserved PCR bits")
Reported-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Jordan Niethe <jniethe5@gmail.com>
Reviewed-by: Alistair Popple <alistair@popple.id.au>
Tested-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20191004025317.19340-1-jniethe5@gmail.com
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Since commit 1211ee61b4a8 ("powerpc/pseries: Read TLB Block Invalidate
Characteristics"), a warning message is displayed when booting a guest
on top of KVM:
lpar: arch/powerpc/platforms/pseries/lpar.c pseries_lpar_read_hblkrm_characteristics Error calling get-system-parameter (0xfffffffd)
This message is displayed because this hypervisor is not supporting
the H_BLOCK_REMOVE hcall and thus is not exposing the corresponding
feature.
Reading the TLB Block Invalidate Characteristics should not be done if
the feature is not exposed.
Fixes: 1211ee61b4a8 ("powerpc/pseries: Read TLB Block Invalidate Characteristics")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Laurent Dufour <ldufour@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20191001132928.72555-1-ldufour@linux.ibm.com
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After merging the powerpc tree, today's linux-next build (powerpc64
allnoconfig) failed like this:
arch/powerpc/mm/book3s64/pgtable.c:216:3:
error: implicit declaration of function 'radix__flush_all_lpid_guest'
radix__flush_all_lpid_guest() is only declared for
CONFIG_PPC_RADIX_MMU which is not set for this build.
Fix it by adding an empty version for the RADIX_MMU=n case, which
should never be called.
Fixes: 99161de3a283 ("powerpc/64s/radix: tidy up TLB flushing code")
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
[mpe: Munge change log]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190930101342.36c1afa0@canb.auug.org.au
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Olof Johansson:
"A few fixes this time around:
- Fixup of some clock specifications for DRA7 (device-tree fix)
- Removal of some dead/legacy CPU OPP/PM code for OMAP that throws
warnings at boot
- A few more minor fixups for OMAPs, most around display
- Enable STM32 QSPI as =y since their rootfs sometimes comes from
there
- Switch CONFIG_REMOTEPROC to =y since it went from tristate to bool
- Fix of thermal zone definition for ux500 (5.4 regression)"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
ARM: multi_v7_defconfig: Fix SPI_STM32_QSPI support
ARM: dts: ux500: Fix up the CPU thermal zone
arm64/ARM: configs: Change CONFIG_REMOTEPROC from m to y
ARM: dts: am4372: Set memory bandwidth limit for DISPC
ARM: OMAP2+: Fix warnings with broken omap2_set_init_voltage()
ARM: OMAP2+: Add missing LCDC midlemode for am335x
ARM: OMAP2+: Fix missing reset done flag for am3 and am43
ARM: dts: Fix gpio0 flags for am335x-icev2
ARM: omap2plus_defconfig: Enable more droid4 devices as loadable modules
ARM: omap2plus_defconfig: Enable DRM_TI_TFP410
DTS: ARM: gta04: introduce legacy spi-cs-high to make display work again
ARM: dts: Fix wrong clocks for dra7 mcasp
clk: ti: dra7: Fix mcasp8 clock bits
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git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- remove unneeded ar-option and KBUILD_ARFLAGS
- remove long-deprecated SUBDIRS
- fix modpost to suppress false-positive warnings for UML builds
- fix namespace.pl to handle relative paths to ${objtree}, ${srctree}
- make setlocalversion work for /bin/sh
- make header archive reproducible
- fix some Makefiles and documents
* tag 'kbuild-fixes-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kheaders: make headers archive reproducible
kbuild: update compile-test header list for v5.4-rc2
kbuild: two minor updates for Documentation/kbuild/modules.rst
scripts/setlocalversion: clear local variable to make it work for sh
namespace: fix namespace.pl script to support relative paths
video/logo: do not generate unneeded logo C files
video/logo: remove unneeded *.o pattern from clean-files
integrity: remove pointless subdir-$(CONFIG_...)
integrity: remove unneeded, broken attempt to add -fshort-wchar
modpost: fix static EXPORT_SYMBOL warnings for UML build
kbuild: correct formatting of header in kbuild module docs
kbuild: remove SUBDIRS support
kbuild: remove ar-option and KBUILD_ARFLAGS
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Vasily Gorbik:
- defconfig updates
- Fix build errors with CC_OPTIMIZE_FOR_SIZE due to usage of "i"
constraint for function arguments. Two kvm changes acked-by Christian
Borntraeger.
- Fix -Wunused-but-set-variable warnings in mm code.
- Avoid a constant misuse in qdio.
- Handle a case when cpumf is temporarily unavailable.
* tag 's390-5.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
KVM: s390: mark __insn32_query() as __always_inline
KVM: s390: fix __insn32_query() inline assembly
s390: update defconfigs
s390/pci: mark function(s) __always_inline
s390/mm: mark function(s) __always_inline
s390/jump_label: mark function(s) __always_inline
s390/cpu_mf: mark function(s) __always_inline
s390/atomic,bitops: mark function(s) __always_inline
s390/mm: fix -Wunused-but-set-variable warnings
s390: mark __cpacf_query() as __always_inline
s390/qdio: clarify size of the QIB parm area
s390/cpumf: Fix indentation in sampling device driver
s390/cpumsf: Check for CPU Measurement sampling
s390/cpumf: Use consistant debug print format
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__insn32_query() will not compile if the compiler decides to not
inline it, since it contains an inline assembly with an "i" constraint
with variable contents.
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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The inline assembly constraints of __insn32_query() tell the compiler
that only the first byte of "query" is being written to. Intended was
probably that 32 bytes are written to.
Fix and simplify the code and just use a "memory" clobber.
Fixes: d668139718a9 ("KVM: s390: provide query function for instructions returning 32 byte")
Cc: stable@vger.kernel.org # v5.2+
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS fixes from Paul Burton:
- Build fixes for Cavium Octeon & PMC-Sierra MSP systems, as well as
all pre-MIPSr6 configurations built with binutils < 2.25.
- Boot fixes for 64-bit Loongson systems & SGI IP28 systems.
- Wire up the new clone3 syscall.
- Clean ups for a few build-time warnings.
* tag 'mips_fixes_5.4_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
MIPS: fw/arc: Remove unused addr variable
MIPS: pmcs-msp71xx: Remove unused addr variable
MIPS: pmcs-msp71xx: Add missing MAX_PROM_MEM definition
mips: Loongson: Fix the link time qualifier of 'serial_exit()'
MIPS: init: Prevent adding memory before PHYS_OFFSET
MIPS: init: Fix reservation of memory between PHYS_OFFSET and mem start
MIPS: VDSO: Fix build for binutils < 2.25
MIPS: VDSO: Remove unused gettimeofday.c
MIPS: Wire up clone3 syscall
MIPS: octeon: Include required header; fix octeon ethernet build
MIPS: cpu-bugs64: Mark inline functions as __always_inline
MIPS: dts: ar9331: fix interrupt-controller size
MIPS: Loongson64: Fix boot failure after dropping boot_mem_map
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git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Paul Walmsley:
- Ensure that exclusive-load reservations are terminated after system
call or exception handling. This primarily affects QEMU, which does
not expire load reservations.
- Fix an issue primarily affecting RV32 platforms that can cause the DT
header to be corrupted, causing boot failures.
* tag 'riscv/for-v5.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: Fix memblock reservation for device tree blob
RISC-V: Clear load reservations while restoring hart contexts
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The addr variable in prom_free_prom_memory() has been unused since
commit 0df1007677d5 ("MIPS: fw: Record prom memory"), leading to a
compiler warning:
arch/mips/fw/arc/memory.c:163:16:
warning: unused variable 'addr' [-Wunused-variable]
Fix this by removing the unused variable.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: 0df1007677d5 ("MIPS: fw: Record prom memory")
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: linux-mips@vger.kernel.org
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Pull KVM fixes from Paolo Bonzini:
"ARM and x86 bugfixes of all kinds.
The most visible one is that migrating a nested hypervisor has always
been busted on Broadwell and newer processors, and that has finally
been fixed"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (22 commits)
KVM: x86: omit "impossible" pmu MSRs from MSR list
KVM: nVMX: Fix consistency check on injected exception error code
KVM: x86: omit absent pmu MSRs from MSR list
selftests: kvm: Fix libkvm build error
kvm: vmx: Limit guest PMCs to those supported on the host
kvm: x86, powerpc: do not allow clearing largepages debugfs entry
KVM: selftests: x86: clarify what is reported on KVM_GET_MSRS failure
KVM: VMX: Set VMENTER_L1D_FLUSH_NOT_REQUIRED if !X86_BUG_L1TF
selftests: kvm: add test for dirty logging inside nested guests
KVM: x86: fix nested guest live migration with PML
KVM: x86: assign two bits to track SPTE kinds
KVM: x86: Expose XSAVEERPTR to the guest
kvm: x86: Enumerate support for CLZERO instruction
kvm: x86: Use AMD CPUID semantics for AMD vCPUs
kvm: x86: Improve emulation of CPUID leaves 0BH and 1FH
KVM: X86: Fix userspace set invalid CR4
kvm: x86: Fix a spurious -E2BIG in __do_cpuid_func
KVM: LAPIC: Loosen filter for adaptive tuning of lapic_timer_advance_ns
KVM: arm/arm64: vgic: Use the appropriate TRACE_INCLUDE_PATH
arm64: KVM: Kill hyp_alternate_select()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes and cleanups from Juergen Gross:
- a fix in the Xen balloon driver avoiding hitting a BUG_ON() in some
cases, plus a follow-on cleanup series for that driver
- a patch for introducing non-blocking EFI callbacks in Xen's EFI
driver, plu a cleanup patch for Xen EFI handling merging the x86 and
ARM arch specific initialization into the Xen EFI driver
- a fix of the Xen xenbus driver avoiding a self-deadlock when cleaning
up after a user process has died
- a fix for Xen on ARM after removal of ZONE_DMA
- a cleanup patch for avoiding build warnings for Xen on ARM
* tag 'for-linus-5.4-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/xenbus: fix self-deadlock after killing user process
xen/efi: have a common runtime setup function
arm: xen: mm: use __GPF_DMA32 for arm64
xen/balloon: Clear PG_offline in balloon_retrieve()
xen/balloon: Mark pages PG_offline in balloon_append()
xen/balloon: Drop __balloon_append()
xen/balloon: Set pages PageOffline() in balloon_add_region()
ARM: xen: unexport HYPERVISOR_platform_op function
xen/efi: Set nonblocking callbacks
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SPI_STM32_QSPI must be set in buildin as rootfs can be
located on QSPI memory device.
Link: https://lore.kernel.org/r/20191004124025.17394-1-patrice.chotard@st.com
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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Always inline asm inlines with variable operands for "i" constraints,
since they won't compile if the compiler would decide to not inline
them.
Reported-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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Always inline asm inlines with variable operands for "i" constraints,
since they won't compile if the compiler would decide to not inline
them.
Reported-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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Always inline asm inlines with variable operands for "i" constraints,
since they won't compile if the compiler would decide to not inline
them.
Reported-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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Always inline asm inlines with variable operands for "i" constraints,
since they won't compile if the compiler would decide to not inline
them.
Reported-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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Always inline asm inlines with variable operands for "i" constraints,
since they won't compile if the compiler would decide to not inline
them.
Reported-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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Convert two functions to static inline to get ride of W=1 GCC warnings
like,
mm/gup.c: In function 'gup_pte_range':
mm/gup.c:1816:16: warning: variable 'ptem' set but not used
[-Wunused-but-set-variable]
pte_t *ptep, *ptem;
^~~~
mm/mmap.c: In function 'acct_stack_growth':
mm/mmap.c:2322:16: warning: variable 'new_start' set but not used
[-Wunused-but-set-variable]
unsigned long new_start;
^~~~~~~~~
Signed-off-by: Qian Cai <cai@lca.pw>
Link: https://lore.kernel.org/lkml/1570138596-11913-1-git-send-email-cai@lca.pw/
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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arch/s390/kvm/kvm-s390.c calls on several places __cpacf_query() directly,
which makes it impossible to meet the "i" constraint for the asm operands
(opcode in this case).
As we are now force-enabling CONFIG_OPTIMIZE_INLINING on all
architectures, this causes a build failure on s390:
In file included from arch/s390/kvm/kvm-s390.c:44:
./arch/s390/include/asm/cpacf.h: In function '__cpacf_query':
./arch/s390/include/asm/cpacf.h:179:2: warning: asm operand 3 probably doesn't match constraints
179 | asm volatile(
| ^~~
./arch/s390/include/asm/cpacf.h:179:2: error: impossible constraint in 'asm'
Mark __cpacf_query() as __always_inline in order to fix that, analogically
how we fixes __cpacf_check_opcode(), cpacf_query_func() and scpacf_query()
already.
Reported-and-tested-by: Michal Kubecek <mkubecek@suse.cz>
Fixes: d83623c5eab2 ("s390: mark __cpacf_check_opcode() and cpacf_query_func() as __always_inline")
Fixes: e60fb8bf68d4 ("s390/cpacf: mark scpacf_query() as __always_inline")
Fixes: ac7c3e4ff401 ("compiler: enable CONFIG_OPTIMIZE_INLINING forcibly")
Fixes: 9012d011660e ("compiler: allow all arches to enable CONFIG_OPTIMIZE_INLINING")
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Link: https://lore.kernel.org/lkml/nycvar.YFH.7.76.1910012203010.13160@cbobk.fhfr.pm
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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INTEL_PMC_MAX_GENERIC is currently 32, which exceeds the 18
contiguous MSR indices reserved by Intel for event selectors.
Since some machines actually have MSRs past the reserved range,
filtering them against x86_pmu.num_counters_gp may have false
positives. Cut the list to 18 entries to avoid this.
Reported-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Suggested-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Cc: Jim Mattson <jamttson@google.com>
Fixes: e2ada66ec418 ("kvm: x86: Add Intel PMU MSRs to msrs_to_save[]", 2019-08-21)
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The addr variable in prom_free_prom_memory() has been unused since
commit b3c948e2c00f ("MIPS: msp: Record prom memory"), causing a warning
& build failure due to -Werror. Remove the unused variable.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: b3c948e2c00f ("MIPS: msp: Record prom memory")
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: linux-mips@vger.kernel.org
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