The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/8a5ac8044578694879e919322dbd46f140b64950.1708529736.git.u.kleine-koenig@pengutronix.de
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/1e8396078942d9e46e56d70ed2f749a76391c381.1708529736.git.u.kleine-koenig@pengutronix.de
The PS3 hcall assembly code makes ad-hoc stack frames that don't have
a back-chain pointer or meet other requirements like minimum frame size.
This probably confuses stack unwinders. Give all hcalls a real stack
frame.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Tested-by: Geoff Levand <geoff@infradead.org>
[mpe: Add missing \ in LV1_2_IN_4_OUT]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231227072405.63751-4-npiggin@gmail.com
The LRSAVE constant is required for assembly compiled for both 32-bit
and 64-bit, because the value differs there. PS3 is 64-bit only so
this is a noop, but it is nice to abstract stack frame offsets.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Tested-by: Geoff Levand <geoff@infradead.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231227072405.63751-3-npiggin@gmail.com
Stack-passed parameters begin at a different offset in the caller's
stack in the ELFv2 ABI.
Reported-by: Geoff Levand <geoff@infradead.org>
Fixes: 8c5fa3b5c4 ("powerpc/64: Make ELFv2 the default for big-endian builds")
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Tested-by: Geoff Levand <geoff@infradead.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231227072405.63751-2-npiggin@gmail.com
PAPR will define a new ibm,pi-features bit which says that doorbells
should not be used even on architectures where they exist. This could be
because they are emulated and slower than using the interrupt controller
directly for IPIs.
Wire this bit into the pi-features parser to clear CPU_FTR_DBELL, and
ensure CPU_FTR_DBELL is not in CPU_FTRS_ALWAYS.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Tested-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240207035220.339726-2-npiggin@gmail.com
When a new ibm,pa/pi-features bit is introduced that is intended to
apply to existing systems and features, it may have an "inverted"
meaning (i.e., bit clear => feature available; bit set => unavailable).
Depending on the nature of the feature, this may give the best
backward compatibility result where old firmware will continue to
have that bit clear and therefore the feature available.
The 'invert' modifier presumably was introduced for this type of
feature bit. However it invert will set the feature if the bit is
clear, which prevents it being used in the situation where an old
CPU lacks a feature that a new CPU has, then a new firmware comes
out to disable that feature on the new CPU if the bit is set.
Adding an 'invert' entry for that feature would incorrectly enable
it for the old CPU.
So add a 'clear' modifier that clears the feature if the bit is set,
but it does not set the feature if the bit is clear. The feature
is expected to be set in the cpu table.
This replaces the 'invert' modifier, which is unused since commit
7d47034551 ("powerpc/feature: Remove CPU_FTR_NODSISRALIGN").
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Tested-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240207035220.339726-1-npiggin@gmail.com
Base enablement patch to register performance monitoring
hardware support for Power11. Most of fields are copied
from power10_pmu struct for power11_pmu struct.
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240221044623.1598642-2-mpe@ellerman.id.au
Add CPU table entries for raw and architected mode. Most fields are
copied from the Power10 table entries.
CPU, MMU and user (ELF_HWCAP) features are unchanged vs P10. However
userspace can detect P11 because the AT_PLATFORM value changes to
"power11".
The logical PVR value of 0x0F000007, passed to firmware via the
ibm_arch_vec, indicates the kernel can support a P11 compatible CPU,
which means at least ISA v3.1 compliant.
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240221044623.1598642-1-mpe@ellerman.id.au
When an ifdef is used in the below manner, second one could be considered
as duplicate.
ifdef DEFINE_A
...code block...
ifdef DEFINE_A <-- This is a duplicate.
...code block...
endif
else
ifndef DEFINE_A <-- This is also duplicate.
...code block...
endif
endif
More details about the script and methods used to find these code
patterns are in cover letter of [1].
Few places in arch/powerpc where this pattern was seen:
paca.h:
Hunk1: Code is under check of CONFIG_PPC64 from line 13, hence the
second CONFIG_PPC64 at line 166 is a duplicate.
Hunk2: CONFIG_PPC_BOOK3S_64 was defined back to back. Merged the two
ifdefs.
asm-offsets.c:
Code is under check of CONFIG_PPC64 from line 176 hence second
CONFIG_PPC64 at line 249 is a duplicate.
powermac/feature.c:
#ifndef CONFIG_PPC64 is used at line 2066. And then in #else again
#ifdef CONFIG_PPC64 is used. Which is a duplicate since in #else means
CONFIG_PPC64 is defined.
xmon.c:
Code is under the check of CONFIG_SMP from line 521 hence the same
check of CONFIG_SMP at line 646 is a duplicate.
No functional change is intended here. It only aims to improve code
readability.
[1] https://lore.kernel.org/all/20240118080326.13137-1-sshegde@linux.ibm.com/
Signed-off-by: Shrikanth Hegde <sshegde@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240216053016.528906-1-sshegde@linux.ibm.com
Commit 2fb857bc9f ("powerpc/kcsan: Add exclusions from instrumentation")
added KCSAN_SANITIZE_early_64.o to arch/powerpc/kernel/Makefile, while
it does not compile early_64.o.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240216135817.2003106-1-masahiroy@kernel.org
The powerpc toolchain keeps a copy of the HWCAP bit masks in the TCB
for fast access by the __builtin_cpu_supports() built-in function. The
TCB space for the HWCAP entries - which are created in pairs - is an ABI
extension, so waiting to create the space for HWCAP3 and HWCAP4 until
they are needed is problematic. Define AT_HWCAP3 and AT_HWCAP4 in the
generic uapi header so they can be used in glibc to reserve space in the
powerpc TCB for their future use.
I scanned through the Linux and GLIBC source codes looking for unused
AT_* values and 29 and 30 did not seem to be used, so they are what I
went with.
Signed-off-by: Peter Bergner <bergner@linux.ibm.com>
Acked-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Acked-by: Nicholas Piggin <npiggin@gmail.com>
Acked-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/a406b535-dc55-4856-8ae9-5a063644a1af@linux.ibm.com
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/42358a12b38c9498b8ab2896d4f3d4eb9484b45e.1704900449.git.u.kleine-koenig@pengutronix.de
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/398f9079cacd5b87a930181c250aad2ad4d31424.1704900449.git.u.kleine-koenig@pengutronix.de
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/725a17c7fb1bbe6d827b38bbee40494aebf9c06d.1704900449.git.u.kleine-koenig@pengutronix.de
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/0406f1db35f23f66fa8a5f8c756fa456601795c4.1704900449.git.u.kleine-koenig@pengutronix.de
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/36f421f845449a9700f704379105aa5f5db5dd9e.1704900449.git.u.kleine-koenig@pengutronix.de
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/eac991c7f2267237382f77bc15c016ff62e1fbb7.1704900449.git.u.kleine-koenig@pengutronix.de
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/74b35a7183dead9cb8359b38356e1a70e720c53e.1704900449.git.u.kleine-koenig@pengutronix.de
Since commit d492cc2573 ("driver core: device.h: make struct
bus_type a const *"), the driver core can properly handle constant
struct bus_type, move the ibmebus_bus_type variable to be a constant
structure as well, placing it into read-only memory which can not be
modified at runtime.
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: "Ricardo B. Marliere" <ricardo@marliere.net>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240212-bus_cleanup-powerpc2-v2-5-8441b3f77827@marliere.net
Since commit d492cc2573 ("driver core: device.h: make struct
bus_type a const *"), the driver core can properly handle constant
struct bus_type, move the macio_bus_type variable to be a constant
structure as well, placing it into read-only memory which can not be
modified at runtime.
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: "Ricardo B. Marliere" <ricardo@marliere.net>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240212-bus_cleanup-powerpc2-v2-4-8441b3f77827@marliere.net
Since commit d492cc2573 ("driver core: device.h: make struct
bus_type a const *"), the driver core can properly handle constant
struct bus_type, move the mpic_subsys variable to be a constant
structure as well, placing it into read-only memory which can not be
modified at runtime.
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: "Ricardo B. Marliere" <ricardo@marliere.net>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240212-bus_cleanup-powerpc2-v2-3-8441b3f77827@marliere.net
Since commit d492cc2573 ("driver core: device.h: make struct
bus_type a const *"), the driver core can properly handle constant
struct bus_type, move the vio_bus_type variable to be a constant
structure as well, placing it into read-only memory which can not be
modified at runtime.
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: "Ricardo B. Marliere" <ricardo@marliere.net>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240212-bus_cleanup-powerpc2-v2-2-8441b3f77827@marliere.net
In order to make the distinction of the vio_bus_type variable based on
CONFIG_PPC_SMLPAR more explicit, move the required structs into a new
ifdef block. This is needed in order to make vio_bus_type const and
because the distinction is made explicit, there is no need to set the
fields within the vio_cmo_sysfs_init function.
Signed-off-by: "Ricardo B. Marliere" <ricardo@marliere.net>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240212-bus_cleanup-powerpc2-v2-1-8441b3f77827@marliere.net
arch_vmap_pud_supported() and arch_vmap_pmd_supported() are
expected to constant-fold to false when RADIX is not enabled.
Force inlining in order to avoid following failure which
leads to unexpected call of non-existing pud_set_huge() and
pmd_set_huge() on powerpc 8xx.
In function 'pud_huge_tests',
inlined from 'debug_vm_pgtable' at mm/debug_vm_pgtable.c:1399:2:
./arch/powerpc/include/asm/vmalloc.h:9:33: warning: inlining failed in call to 'arch_vmap_pud_supported.isra': call is unlikely and code size would grow [-Winline]
9 | #define arch_vmap_pud_supported arch_vmap_pud_supported
| ^~~~~~~~~~~~~~~~~~~~~~~
./arch/powerpc/include/asm/vmalloc.h:10:20: note: in expansion of macro 'arch_vmap_pud_supported'
10 | static inline bool arch_vmap_pud_supported(pgprot_t prot)
| ^~~~~~~~~~~~~~~~~~~~~~~
./arch/powerpc/include/asm/vmalloc.h:9:33: note: called from here
9 | #define arch_vmap_pud_supported arch_vmap_pud_supported
mm/debug_vm_pgtable.c:458:14: note: in expansion of macro 'arch_vmap_pud_supported'
458 | if (!arch_vmap_pud_supported(args->page_prot) ||
| ^~~~~~~~~~~~~~~~~~~~~~~
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202402131836.OU1TDuoi-lkp@intel.com/
Fixes: 8309c9d717 ("powerpc: inline huge vmap supported functions")
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/bbd84ad52bf377e8d3b5865a906f2dc5d99964ba.1707832677.git.christophe.leroy@csgroup.eu
If nr_cpu_ids is too low to include the boot CPU, remap the boot CPU
onto logical core 0.
This is achieved in two stages. In early_init_dt_scan_cpus() the boot
CPU is renumbered to be on logical core 0, and the original boot core's
hardware ID is recorded.
Later in smp_setup_cpu_maps(), if the original boot core ID is set, the
logical CPU numbers on the 0th core are skipped in the normal device
tree search over CPU device tree nodes. Then the search is continued
until the device tree node matching the boot core is found, and those
CPUs are assigned the CPU numbers starting at 0.
This allows kdump kernels to be booted with low values for nr_cpu_ids
to conserve memory, while also allowing the crashing/boot CPU to be
any CPU.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Tested-by: Wen Xiong <wenxiong@us.ibm.com>
Link: https://msgid.link/20231229120107.2281153-5-mpe@ellerman.id.au
Factor out the for loop that assigns CPU numbers to threads of a core.
The function takes the next CPU number to use as input, and returns the
next available CPU number after the threads has been assigned.
This will allow a subsequent change to assign threads out of order.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231229120107.2281153-4-mpe@ellerman.id.au
The of_device_is_available() check only needs to be done once per device
node, there's no need to repeat it for each thread. Move it out of the
loop.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231229120107.2281153-3-mpe@ellerman.id.au
If nr_cpu_ids is too low to include at least all the threads of a single
core adjust nr_cpu_ids upwards. This avoids triggering odd bugs in code
that assumes all threads of a core are available.
Cc: stable@vger.kernel.org
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231229120107.2281153-1-mpe@ellerman.id.au
- Fix unit test build regression fallout from global
"missing-prototypes" change
- Fix compatibility with devices that do not support interrupts
- Fix overflow when calculating the capacity of large interleave sets
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Merge tag 'cxl-fixes-6.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
Pull cxl fixes from Dan Williams:
"A build regression fix, a device compatibility fix, and an original
bug preventing creation of large (16 device) interleave sets:
- Fix unit test build regression fallout from global
"missing-prototypes" change
- Fix compatibility with devices that do not support interrupts
- Fix overflow when calculating the capacity of large interleave sets"
* tag 'cxl-fixes-6.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
cxl/region：Fix overflow issue in alloc_hpa()
cxl/pci: Skip irq features if MSI/MSI-X are not supported
tools/testing/nvdimm: Disable "missing prototypes / declarations" warnings
tools/testing/cxl: Disable "missing prototypes / declarations" warnings
exposure
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Merge tag 'locking_urgent_for_v6.8_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking fix from Borislav Petkov:
- Prevent an inconsistent futex operation leading to stale state
exposure
* tag 'locking_urgent_for_v6.8_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
futex: Prevent the reuse of stale pi_state
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Merge tag 'irq_urgent_for_v6.8_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fix from Borislav Petkov:
- Initialize the resend node of each IRQ descriptor, not only the first
one
* tag 'irq_urgent_for_v6.8_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
genirq: Initialize resend_node hlist for all interrupt descriptors
events in order to be able to compute correct averages
- Limit the duration of the clocksource watchdog checking interval as
too long intervals lead to wrongly marking the TSC as unstable
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Merge tag 'timers_urgent_for_v6.8_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Borislav Petkov:
- Preserve the number of idle calls and sleep entries across CPU
hotplug events in order to be able to compute correct averages
- Limit the duration of the clocksource watchdog checking interval as
too long intervals lead to wrongly marking the TSC as unstable
* tag 'timers_urgent_for_v6.8_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
tick/sched: Preserve number of idle sleeps across CPU hotplug events
clocksource: Skip watchdog check for large watchdog intervals
- Add detection for AMD's Zen5 generation CPUs and Intel's Clearwater
Forest CPU model number
- Make a stub function export non-GPL because it is part of the
paravirt alternatives and that can be used by non-GPL code
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Merge tag 'x86_urgent_for_v6.8_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Borislav Petkov:
- Make sure 32-bit syscall registers are properly sign-extended
- Add detection for AMD's Zen5 generation CPUs and Intel's Clearwater
Forest CPU model number
- Make a stub function export non-GPL because it is part of the
paravirt alternatives and that can be used by non-GPL code
* tag 'x86_urgent_for_v6.8_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/CPU/AMD: Add more models to X86_FEATURE_ZEN5
x86/entry/ia32: Ensure s32 is sign extended to s64
x86/cpu: Add model number for Intel Clearwater Forest processor
x86/CPU/AMD: Add X86_FEATURE_ZEN5
x86/paravirt: Make BUG_func() usable by non-GPL modules
When CONFIG_DEFERRED_STRUCT_PAGE_INIT is enabled, the initialization of
reserved pages may cause access of NODE_DATA() with invalid nid and crash.
Add a fall back to early_pfn_to_nid() in memmap_init_reserved_pages() to
ensure a valid node id is always passed to init_reserved_page().
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Merge tag 'fixes-2024-01-28' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock
Pull memblock fix from Mike Rapoport:
"Fix crash when reserved memory is not added to memory.
When CONFIG_DEFERRED_STRUCT_PAGE_INIT is enabled, the initialization
of reserved pages may cause access of NODE_DATA() with invalid nid and
crash.
Add a fall back to early_pfn_to_nid() in memmap_init_reserved_pages()
to ensure a valid node id is always passed to init_reserved_page()"
* tag 'fixes-2024-01-28' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock:
memblock: fix crash when reserved memory is not added to memory
Highlights:
- WMI bus driver fixes
- Second attempt (previously reverted) at P2SB PCI rescan deadlock fix
- AMD PMF driver improvements
- MAINTAINERS updates
- Misc. other small fixes and hw-id additions
The following is an automated git shortlog grouped by driver:
MAINTAINERS:
- remove defunct acpi4asus project info from asus notebooks section
- add Luke Jones as maintainer for asus notebooks
- Remove Perry Yuan as DELL WMI HARDWARE PRIVACY SUPPORT maintainer
intel-uncore-freq:
- Fix types in sysfs callbacks
intel-wmi-sbl-fw-update:
- Fix function name in error message
p2sb:
- Use pci_resource_n() in p2sb_read_bar0()
- Allow p2sb_bar() calls during PCI device probe
platform/mellanox:
- mlxbf-pmc: Fix offset calculation for crspace events
- mlxbf-tmfifo: Drop Tx network packet when Tx TmFIFO is full
platform/x86/amd/pmf:
- Fix memory leak in amd_pmf_get_pb_data()
- Get ambient light information from AMD SFH driver
- Get Human presence information from AMD SFH driver
platform/x86/intel/ifs:
- Call release_firmware() when handling errors.
silicom-platform:
- Add missing "Description:" for power_cycle sysfs attr
touchscreen_dmi:
- Add info for the TECLAST X16 Plus tablet
wmi:
- Fix wmi_dev_probe()
- Fix notify callback locking
- Decouple legacy WMI notify handlers from wmi_block_list
- Return immediately if an suitable WMI event is found
- Fix error handling in legacy WMI notify handler functions
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Merge tag 'platform-drivers-x86-v6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver fixes from Hans de Goede:
- WMI bus driver fixes
- Second attempt (previously reverted) at P2SB PCI rescan deadlock fix
- AMD PMF driver improvements
- MAINTAINERS updates
- Misc other small fixes and hw-id additions
* tag 'platform-drivers-x86-v6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86: touchscreen_dmi: Add info for the TECLAST X16 Plus tablet
platform/x86/intel/ifs: Call release_firmware() when handling errors.
platform/x86/amd/pmf: Fix memory leak in amd_pmf_get_pb_data()
platform/x86/amd/pmf: Get ambient light information from AMD SFH driver
platform/x86/amd/pmf: Get Human presence information from AMD SFH driver
platform/mellanox: mlxbf-pmc: Fix offset calculation for crspace events
platform/mellanox: mlxbf-tmfifo: Drop Tx network packet when Tx TmFIFO is full
MAINTAINERS: remove defunct acpi4asus project info from asus notebooks section
MAINTAINERS: add Luke Jones as maintainer for asus notebooks
MAINTAINERS: Remove Perry Yuan as DELL WMI HARDWARE PRIVACY SUPPORT maintainer
platform/x86: silicom-platform: Add missing "Description:" for power_cycle sysfs attr
platform/x86: intel-wmi-sbl-fw-update: Fix function name in error message
platform/x86: p2sb: Use pci_resource_n() in p2sb_read_bar0()
platform/x86: p2sb: Allow p2sb_bar() calls during PCI device probe
platform/x86: intel-uncore-freq: Fix types in sysfs callbacks
platform/x86: wmi: Fix wmi_dev_probe()
platform/x86: wmi: Fix notify callback locking
platform/x86: wmi: Decouple legacy WMI notify handlers from wmi_block_list
platform/x86: wmi: Return immediately if an suitable WMI event is found
platform/x86: wmi: Fix error handling in legacy WMI notify handler functions
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Merge tag 'loongarch-fixes-6.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
Pull LoongArch fixes from Huacai Chen:
"Fix boot failure on machines with more than 8 nodes, and fix two build
errors about KVM"
* tag 'loongarch-fixes-6.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
LoongArch: KVM: Add returns to SIMD stubs
LoongArch: KVM: Fix build due to API changes
LoongArch/smp: Call rcutree_report_cpu_starting() at tlb_init()
* Fix read only mounts when using fsopen mount API
Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>
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Merge tag 'xfs-6.8-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fix from Chandan Babu:
- Fix read only mounts when using fsopen mount API
* tag 'xfs-6.8-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: read only mounts with fsopen mount API are busted
- fix for REQ_OP_FLUSH usage; this fixes filesystems going read only
with -EOPNOTSUPP from the block layer.
(this really should have gone in with the block layer patch causing
the -EOPNOTSUPP, or should have gone in before).
- fix an allocation in non-sleepable context
- fix one source of srcu lock latency, on devices with terrible discard
latency
- fix a reattach_inode() issue in fsck
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Merge tag 'bcachefs-2024-01-26' of https://evilpiepirate.org/git/bcachefs
Pull bcachefs fixes from Kent Overstreet:
- fix for REQ_OP_FLUSH usage; this fixes filesystems going read only
with -EOPNOTSUPP from the block layer.
(this really should have gone in with the block layer patch causing
the -EOPNOTSUPP, or should have gone in before).
- fix an allocation in non-sleepable context
- fix one source of srcu lock latency, on devices with terrible discard
latency
- fix a reattach_inode() issue in fsck
* tag 'bcachefs-2024-01-26' of https://evilpiepirate.org/git/bcachefs:
bcachefs: __lookup_dirent() works in snapshot, not subvol
bcachefs: discard path uses unlock_long()
bcachefs: fix incorrect usage of REQ_OP_FLUSH
bcachefs: Add gfp flags param to bch2_prt_task_backtrace()
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Merge tag '6.8-rc2-smb3-server-fixes' of git://git.samba.org/ksmbd
Pull smb server fixes from Steve French:
- Fix netlink OOB
- Minor kernel doc fix
* tag '6.8-rc2-smb3-server-fixes' of git://git.samba.org/ksmbd:
ksmbd: fix global oob in ksmbd_nl_policy
smb: Fix some kernel-doc comments
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Merge tag '6.8-rc1-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client fixes from Steve French:
"Nine cifs/smb client fixes
- Four network error fixes (three relating to replays of requests
that need to be retried, and one fixing some places where we were
returning the wrong rc up the stack on network errors)
- Two multichannel fixes including locking fix and case where subset
of channels need reconnect
- netfs integration fixup: share remote i_size with netfslib
- Two small cleanups (one for addressing a clang warning)"
* tag '6.8-rc1-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: fix stray unlock in cifs_chan_skip_or_disable
cifs: set replay flag for retries of write command
cifs: commands that are retried should have replay flag set
cifs: helper function to check replayable error codes
cifs: translate network errors on send to -ECONNABORTED
cifs: cifs_pick_channel should try selecting active channels
cifs: Share server EOF pos with netfslib
smb: Work around Clang __bdos() type confusion
smb: client: delete "true", "false" defines
If we still own the FPU after initializing fcr31, when we are preempted
the dirty value in the FPU will be read out and stored into fcr31,
clobbering our setting. This can cause an improper floating-point
environment after execve(). For example:
zsh% cat measure.c
#include <fenv.h>
int main() { return fetestexcept(FE_INEXACT); }
zsh% cc measure.c -o measure -lm
zsh% echo $((1.0/3)) # raising FE_INEXACT
0.33333333333333331
zsh% while ./measure; do ; done
(stopped in seconds)
Call lose_fpu(0) before setting fcr31 to prevent this.
Closes: https://lore.kernel.org/linux-mips/7a6aa1bbdbbe2e63ae96ff163fab0349f58f1b9e.camel@xry111.site/
Fixes: 9b26616c8d ("MIPS: Respect the ISA level in FCSR handling")
Cc: stable@vger.kernel.org
Signed-off-by: Xi Ruoyao <xry111@xry111.site>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Commit 61167ad5fecd("mm: pass nid to reserve_bootmem_region()") reveals
that reserved memblock regions have no valid node id set, just set it
right since loongson64 firmware makes it clear in memory layout info.
This works around booting failure on 3A1000+ since commit 61167ad5fe
("mm: pass nid to reserve_bootmem_region()") under
CONFIG_DEFERRED_STRUCT_PAGE_INIT.
Signed-off-by: Huang Pei <huangpei@loongson.cn>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
- Fix an incorrect link_power_management_policy sysfs attribute
value. We were previously using the same attribute value for
two different LPM policies (me).
- Add a ASMedia ASM1166 quirk. The SATA host controller always
reports that it has 32 ports, even though it only has six ports.
Add a quirk that overrides the value reported by the controller
(Conrad).
- Add a ASMedia ASM1061 quirk. The SATA host controller completely
ignores the upper 21 bits of the DMA address. This causes IOMMU
error events when a (valid) DMA address actually has any of the
upper 21 bits set. Add a quirk that limits the dma_mask to
43-bits (Lennert).
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Merge tag 'ata-6.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux
Pull ata updates from Niklas Cassel:
- Fix an incorrect link_power_management_policy sysfs attribute value.
We were previously using the same attribute value for two different
LPM policies (me)
- Add a ASMedia ASM1166 quirk.
The SATA host controller always reports that it has 32 ports, even
though it only has six ports. Add a quirk that overrides the value
reported by the controller (Conrad)
- Add a ASMedia ASM1061 quirk.
The SATA host controller completely ignores the upper 21 bits of the
DMA address. This causes IOMMU error events when a (valid) DMA
address actually has any of the upper 21 bits set. Add a quirk that
limits the dma_mask to 43-bits (Lennert)
* tag 'ata-6.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
ahci: add 43-bit DMA address quirk for ASMedia ASM1061 controllers
ahci: asm1166: correct count of reported ports
ata: libata-sata: improve sysfs description for ATA_LPM_UNKNOWN
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Merge tag 'block-6.8-2024-01-26' of git://git.kernel.dk/linux
Pull block fixes from Jens Axboe:
- RCU warning fix for md (Mikulas)
- Fix for an aoe issue that lockdep rightfully complained about
(Maksim)
- Fix for an error code change in partitioning that caused a regression
with some tools (Li)
- Fix for a data direction warning with bi-direction commands
(Christian)
* tag 'block-6.8-2024-01-26' of git://git.kernel.dk/linux:
md: fix a suspicious RCU usage warning
aoe: avoid potential deadlock at set_capacity
block: Fix WARNING in _copy_from_iter
block: Move checking GENHD_FL_NO_PART to bdev_add_partition()
