to init_big_cores()
Michael Ellerman (4):
powerpc/boot: Fix build of dts/fsl
powerpc/vdso: Block R_PPC_REL24 relocations
powerpc/vdso: Don't pass 64-bit ABI cflags to 32-bit VDSO
powerpc/vdso: Fix DOTSYM for 32-bit LE VDSO
arch/powerpc/boot/Makefile | 2 ++
arch/powerpc
Christophe Leroy writes:
> Le 22/12/2020 à 08:11, Christophe Leroy a écrit :
>> When we have VMAP stack, exception prolog 1 sets r1, not r11.
>
> But exception prolog 1 uses r1 to setup r1 when machine check happens in
> kernel.
> So r1 must be restored when the branch is not taken. See
On Tue, 22 Dec 2020 07:11:18 + (UTC), Christophe Leroy wrote:
> When we have VMAP stack, exception prolog 1 sets r1, not r11.
Applied to powerpc/fixes.
[1/1] powerpc/32s: Fix RTAS machine check with VMAP stack
https://git.kernel.org/powerpc/c/9c7422b92cb27369653c371ad9c44a502e5eea8f
On Sun, 20 Dec 2020 18:18:26 + (UTC), Christophe Leroy wrote:
> Force inlining of get_tb() in order to avoid getting
> following function in vdso32, leading to suboptimal
> performance in clock_gettime()
>
> 0688 <.get_tb>:
> 688: 7c 6d 42 a6 mftbu r3
> 68c: 7c 8c 42 a6 mftb
On Mon, 21 Dec 2020 06:18:03 + (UTC), Christophe Leroy wrote:
> We need r1 to be properly set before activating MMU, otherwise any new
> exception taken while saving registers into the stack in syscall
> prologs will use the user stack, which is wrong and will even lockup
> or crash when KUAP
On Tue, 8 Dec 2020 18:57:08 -0300, Leonardo Bras wrote:
> According to ISAv3.1 and ISAv3.0b, the msgsndp is described to split RB in:
> msgtype <- (RB) 32:36
> payload <- (RB) 37:63
> t <- (RB) 57:63
>
> The current way of getting 'msgtype', and 't' is missing their MSB:
> msgtype: ((arg >>
On Sat, 7 Nov 2020 14:26:22 +0800, xiakaixu1...@gmail.com wrote:
> Fix the following coccinelle warnings:
>
> ./arch/powerpc/kvm/book3s_xics.c:476:3-15: WARNING: Assignment of 0/1 to bool
> variable
> ./arch/powerpc/kvm/book3s_xics.c:504:3-15: WARNING: Assignment of 0/1 to bool
> variable
On Fri, 11 Dec 2020 15:59:54 +0100, Laurent Dufour wrote:
> When attempting to remove by index a set of LMB a lot of messages are
> displayed on the console, even when everything goes fine:
>
> pseries-hotplug-mem: Attempting to hot-remove LMB, drc index 802d
> Offlined Pages 4096
>
On Sat, 12 Dec 2020 13:41:25 + (UTC), Christophe Leroy wrote:
> Commit 7bfe54b5f165 ("powerpc/mm: Refactor the floor/ceiling check in
> hugetlb range freeing functions") inadvertely removed the mask
> applied to start parameter in those two functions, leading to the
> following crash on
On Thu, 15 Oct 2020 10:52:20 + (UTC), Christophe Leroy wrote:
> ppc-linux-objdump -d vmlinux | grep -e "" -e
> "<__csum_partial>"
>
> With gcc9 I get:
>
> c0017ef8 <__csum_partial>:
> c00182fc: 4b ff fb fd bl c0017ef8 <__csum_partial>
> c0018478:
Andy Shevchenko writes:
> On Fri, Dec 18, 2020 at 4:37 PM Enrico Weigelt, metux IT consult
> wrote:
>
>> + if (printk_ratelimit())
>> + pr_warn("spurious IRQ: irq=%d hwirq=%d nr_irqs=%d\n",
>> + irq, hwirq, nr_irqs);
>
> Perhaps
: Book3S HV: Fix mask size for emulated msgsndp
Madhavan Srinivasan (2):
powerpc/perf: Use regs->nip when SIAR is zero
powerpc/perf: Fix Threshold Event Counter Multiplier width for P10
Mathieu Desnoyers (1):
powerpc: Fix incorrect stw{, ux, u, x} instructions in __set_pte_at
On Wed, 11 Nov 2020 21:07:20 +1000, Nicholas Piggin wrote:
> This conversion seems to require generic atomic64 changes, looks
> like nothing else uses ARCH_ATOMIC and GENERIC_ATOMIC64 yet.
>
> Thanks,
> Nick
>
> Nicholas Piggin (3):
> asm-generic/atomic64: Add support for ARCH_ATOMIC
>
On Wed, 9 Dec 2020 05:29:20 + (UTC), Christophe Leroy wrote:
> This partially reverts commit eb232b162446 ("powerpc/book3s64/kuap: Improve
> error reporting with KUAP") and update the fault handler to print
>
> [ 55.022514] Kernel attempted to access user page (7e6725b7) - exploit
>
On Thu, 22 Oct 2020 06:29:26 + (UTC), Christophe Leroy wrote:
> On 8xx, we get the following features:
>
> [0.00] cpu_features = 0x0100
> [0.00] possible= 0x0120
> [0.00] always = 0x
>
> This is not
On Fri, 4 Dec 2020 10:11:34 + (UTC), Christophe Leroy wrote:
> When SMC1 is relocated and early debug is selected, the
> board hangs is ppc_md.setup_arch(). This is because ones
> the microcode has been loaded and SMC1 relocated, early
> debug writes in the weed.
>
> To allow smooth
On Fri, 6 Nov 2020 13:20:54 + (UTC), Christophe Leroy wrote:
> All hugetlb range freeing functions have a verification like the following,
> which only differs by the mask used, depending on the page table level.
>
> start &= MASK;
> if (start < floor)
> return;
>
On Tue, 8 Dec 2020 13:54:34 -0600, Tyrel Datwyler wrote:
> Commit bd59380c5ba4 ("powerpc/rtas: Restrict RTAS requests from userspace")
> introduced the following error when invoking the errinjct userspace
> tool.
>
> [root@ltcalpine2-lp5 librtas]# errinjct open
> [327884.071171] sys_rtas: RTAS
On Tue, 24 Nov 2020 19:51:55 + (UTC), Christophe Leroy wrote:
> primary_pteg_full and htab_hash_searches are not used.
>
> Remove them.
Applied to powerpc/next.
[1/3] powerpc/32s: Remove unused counters incremented by create_hpte()
On Thu, 10 Dec 2020 16:08:54 +0530, Gautham R. Shenoy wrote:
> This is the v2 of the patchset to extend parsing of "ibm,thread-groups"
> property
> to discover the Shared-L2 cache information.
>
> The previous versions can be found here :
>
> v2 :
>
On Mon, 7 Dec 2020 15:54:20 +, Colin King wrote:
> There is a spelling mistake in the help text of the Kconfig. Fix it.
Applied to powerpc/next.
[1/1] powerpc: fix spelling mistake in Kconfig "seleted" -> "selected"
On Fri, 4 Dec 2020 10:12:51 + (UTC), Christophe Leroy wrote:
> __set_dabr() are simple functions that can be inline directly
> inside set_dabr() and using IS_ENABLED() instead of #ifdef
Applied to powerpc/next.
[1/1] powerpc/process: Remove target specific __set_dabr()
On Tue, 24 Nov 2020 15:24:54 + (UTC), Christophe Leroy wrote:
> Since commit e611939fc8ec ("powerpc/mm: Ensure change_page_attr()
> doesn't invalidate pinned TLBs"), pinned TLBs are not anymore
> invalidated by __kernel_map_pages() when CONFIG_DEBUG_PAGEALLOC is
> selected.
>
> Remove the
On Tue, 8 Dec 2020 05:24:19 + (UTC), Christophe Leroy wrote:
> low_sleep_handler() can't restore the context from standard
> stack because the stack can hardly be accessed with MMU OFF.
>
> Store everything in a global storage area instead of storing
> a pointer to the stack in that global
On Mon, 16 Nov 2020 16:09:31 + (UTC), Christophe Leroy wrote:
> On hash 32 bits, handling minor protection faults like unsetting
> dirty flag is heavy if done from the normal page_fault processing,
> because it implies hash table software lookup for flushing the entry
> and then a DSI is taken
Nicholas Piggin writes:
> Excerpts from Michael Ellerman's message of December 14, 2020 8:43 pm:
>> Nicholas Piggin writes:
>>> Excerpts from Geert Uytterhoeven's message of December 10, 2020 7:06 pm:
Hi Nicholas,
On Fri, Nov 20, 2020 at 4:01 AM Nicholas Piggin wrote:
>
Nicholas Piggin writes:
> Excerpts from Geert Uytterhoeven's message of December 10, 2020 7:06 pm:
>> Hi Nicholas,
>>
>> On Fri, Nov 20, 2020 at 4:01 AM Nicholas Piggin wrote:
>>>
>>> When offlining a CPU, powerpc/64s does not flush TLBs, rather it just
>>> leaves the CPU set in mm_cpumasks, so
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA256
Hi Linus,
Please pull one final powerpc fix for 5.10:
The following changes since commit a1ee28117077c3bf24e5ab6324c835eaab629c45:
powerpc/64s/powernv: Fix memory corruption when saving SLB entries on MCE
(2020-12-02 23:16:40 +1100)
are
On Tue, 18 Aug 2020 17:19:11 + (UTC), Christophe Leroy wrote:
> This series leads to a reduction from 2.55s to 1.73s of
> the system CPU time with the following microbench app
> on an mpc832x with KUAP (approx 32%)
>
> This series replaces copies to users by unsafe_put_user() and friends
>
On Mon, 12 Oct 2020 08:05:49 + (UTC), Christophe Leroy wrote:
> Only mpc83xx will set MMU_FTR_NEED_DTLB_SW_LRU and its
> definition is enclosed in #ifdef CONFIG_PPC_83xx.
>
> Make MMU_FTR_NEED_DTLB_SW_LRU possible only when
> CONFIG_PPC_83xx is set.
Applied to powerpc/next.
[1/1]
On Sat, 10 Oct 2020 17:30:59 + (UTC), Christophe Leroy wrote:
> MMU_FTR_TYPE_44x cannot be checked by cpu_has_feature()
>
> Use mmu_has_feature() instead
Applied to powerpc/next.
[1/1] powerpc/mm: Fix verification of MMU_FTR_TYPE_44x
On Mon, 12 Oct 2020 08:02:13 + (UTC), Christophe Leroy wrote:
> G2_LE has a 603 core, add CPU_FTR_NOEXECUTE.
Applied to powerpc/next.
[1/1] powerpc/feature: Add CPU_FTR_NOEXECUTE to G2_LE
https://git.kernel.org/powerpc/c/197493af414ee22427be3343637ac290a791925a
cheers
On Mon, 12 Oct 2020 08:02:30 + (UTC), Christophe Leroy wrote:
> Since commit 10b35d9978ac ("[PATCH] powerpc: merged asm/cputable.h"),
> CPU_FTR_COHERENT_ICACHE has always been defined.
>
> Remove the #ifndef CPU_FTR_COHERENT_ICACHE block.
Applied to powerpc/next.
[1/1] powerpc/mm: Remove
On Thu, 1 Oct 2020 10:59:20 + (UTC), Christophe Leroy wrote:
> SPRN_VTB and CPU_FTR_ARCH_207S are always defined,
> no need of an ifdef.
Applied to powerpc/next.
[1/1] powerpc/time: Remove ifdef in get_vtb()
https://git.kernel.org/powerpc/c/c3cb5dbd85dbd9ae51fadf867782dc34806f04d8
On Tue, 17 Nov 2020 05:07:58 + (UTC), Christophe Leroy wrote:
> There is no defconfig selecting CONFIG_E200, and no platform.
>
> e200 is an earlier version of booke, a predecessor of e500,
> with some particularities like an unified cache instead of both an
> instruction cache and a data
On Sun, 18 Oct 2020 17:25:17 + (UTC), Christophe Leroy wrote:
> As stated in platform/44x/Kconfig, CONFIG_PPC_47x is not
> compatible with 440 and 460 variants.
>
> This is confirmed in asm/cache.h as L1_CACHE_SHIFT is different
> for 47x, meaning a kernel built for 47x will not run correctly
On Sat, 21 Nov 2020 17:59:19 + (UTC), Christophe Leroy wrote:
> ioreadXX()/ioreadXXbe() accessors are equivalent to ppc
> in_leXX()/in_be16() accessors but they are not inlined.
>
> Since commit 0eb573682872 ("powerpc/kerenl: Enable EEH for IO
> accessors"), the 'le' versions are equivalent
On Thu, 22 Oct 2020 09:29:19 + (UTC), Christophe Leroy wrote:
> GCC 4.9 sometimes fails to build with "m<>" constraint in
> inline assembly.
>
> CC lib/iov_iter.o
> In file included from ./arch/powerpc/include/asm/cmpxchg.h:6:0,
> from
On Thu, 19 Nov 2020 17:01:54 +0100, Oleg Nesterov wrote:
> Can we finally fix this problem? ;)
>
> My previous attempt was ignored, see
>
> https://lore.kernel.org/lkml/20190917121256.ga8...@redhat.com/
>
> Now that gpr_get() was changed to use membuf API we can make a simpler fix.
>
>
On Fri, 4 Dec 2020 10:35:38 + (UTC), Christophe Leroy wrote:
> Since some time now, printk() adds carriage return, leading to
> unusable xmon output:
>
> [ 54.288722] sysrq: Entering xmon
> [ 54.292209] Vector: 0 at [cace3d2c]
> [ 54.292274] pc:
> [ 54.292331] c0023650
> [
On Wed, 25 Nov 2020 07:10:46 + (UTC), Christophe Leroy wrote:
> Since commit 2b279c0348af ("powerpc/32s: Allow mapping with BATs with
> DEBUG_PAGEALLOC"), there is no real situation where mapping without
> BATs is required.
>
> In order to simplify memory handling, always map kernel text
>
On Tue, 13 Oct 2020 11:11:20 + (UTC), Christophe Leroy wrote:
> On 8xx, we get the following features:
>
> [0.00] cpu_features = 0x0100
> [0.00] possible= 0x0120
> [0.00] always = 0x
>
> This is not
On Fri, 27 Nov 2020 15:07:37 +0800, Youling Tang wrote:
> Use the common STABS_DEBUG and DWARF_DEBUG and ELF_DETAILS macro rule for
> the linker script in an effort.
Applied to powerpc/next.
[1/1] powerpc: Use common STABS_DEBUG and DWARF_DEBUG and ELF_DETAILS macro
On Wed, 2 Dec 2020 10:34:52 +0530, Srikar Dronamraju wrote:
> Currently, vcpu_is_preempted will return the yield_count for
> shared_processor. On a PowerVM LPAR, Phyp schedules at SMT8 core boundary
> i.e all CPUs belonging to a core are either group scheduled in or group
> scheduled out. This can
On Sun, 27 Sep 2020 09:16:16 + (UTC), Christophe Leroy wrote:
> This series modernises the setup of VDSO:
> - Switch to using _install_special_mapping() which has replaced
> install_special_mapping()
> - Move datapage in front of text like most other architectures to simplify
> its
On Mon, 12 Oct 2020 08:04:24 + (UTC), Christophe Leroy wrote:
> MMU_FTR_PPCAS_ARCH_V2 is defined in cpu_table.h
> as MMU_FTR_TLBIEL | MMU_FTR_16M_PAGE.
>
> MMU_FTR_TLBIEL and MMU_FTR_16M_PAGE are defined in mmu.h
>
> MMU_FTR_PPCAS_ARCH_V2 is used only in mmu.h and it is used only once.
>
>
On Mon, 7 Dec 2020 16:58:01 + (UTC), Christophe Leroy wrote:
> Since commit c33165253492 ("powerpc: use non-set_fs based maccess
> routines"), userspace access is not granted anymore when using
> copy_from_kernel_nofault()
>
> However, kthread_probe_data() uses copy_from_kernel_nofault()
> to
Christophe Leroy writes:
> Le 09/12/2020 à 11:43, Michael Ellerman a écrit :
>> Christophe Leroy writes:
>>> There is no big poing in not pinning kernel text anymore, as now
>>> we can keep pinned TLB even with things like DEBUG_PAGEALLOC.
>>>
>>>
Stephen Rothwell writes:
> Hi Michael,
>
> On Wed, 09 Dec 2020 15:44:35 +1100 Michael Ellerman
> wrote:
>>
>> They should really be in DATA_DATA or similar shouldn't they?
>
> No other architecture appears t need them ...
Any arch with orphan-handling=warn should see them I thought?
cheers
Christophe Leroy writes:
> There is no big poing in not pinning kernel text anymore, as now
> we can keep pinned TLB even with things like DEBUG_PAGEALLOC.
>
> Remove CONFIG_PIN_TLB_TEXT, making it always right.
>
> Signed-off-by: Christophe Leroy
> ---
> arch/powerpc/Kconfig | 3
Stephen Rothwell writes:
> Hi Stephen,
>
> On Fri, 4 Dec 2020 21:00:00 +1100 Stephen Rothwell
> wrote:
>>
>> Hi all,
>>
>> After merging the akpm tree, today's linux-next build (powerpc
>> allyesconfig) produced warnings like this:
>>
>> ld: warning: orphan section `.data..Lubsan_data177'
Gautham R Shenoy writes:
> Hello Srikar,
>
> Thanks for taking a look at the patch.
>
> On Mon, Dec 07, 2020 at 05:40:42PM +0530, Srikar Dronamraju wrote:
>> * Gautham R. Shenoy [2020-12-04 10:18:45]:
>>
>> > From: "Gautham R. Shenoy"
>>
>>
>>
>> >
>> > static int
Borislav Petkov writes:
> On Mon, Dec 07, 2020 at 03:02:53PM +1100, Michael Ellerman wrote:
>> The mv64x60 EDAC driver depends on CONFIG_MV64X60. But that symbol is
>> not user-selectable, and the last code that selected it was removed
>> with the C2K board
"Enrico Weigelt, metux IT consult" writes:
> All archs, except Alpha, print out the irq number in hex, but the message
> looks like it was a decimal number, which is quite confusing. Fixing this
> by adding "0x" prefix.
Arguably decimal would be better, /proc/interrupts and /proc/irq/ both
use
Christophe Leroy writes:
> Le 07/12/2020 à 01:24, Michael Ellerman a écrit :
>> Christophe Leroy writes:
>>> Since commit c33165253492 ("powerpc: use non-set_fs based maccess
>>> routines"), userspace access is not granted anymore when using
>>&
so remove it.
Suggested-by: Borislav Petkov
Signed-off-by: Michael Ellerman
---
drivers/edac/Kconfig| 7 -
drivers/edac/Makefile | 1 -
drivers/edac/mv64x60_edac.c | 883
drivers/edac/mv64x60_edac.h | 114 -
4 files changed, 1005
Christophe Leroy writes:
> Since commit c33165253492 ("powerpc: use non-set_fs based maccess
> routines"), userspace access is not granted anymore when using
> copy_from_kernel_nofault()
>
> However, kthread_probe_data() uses copy_from_kernel_nofault()
> to check validity of pointers. When the
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA256
Hi Linus,
Please pull some more powerpc fixes for 5.10.
The change to kernel/cpu.c is just adding an optional arch override, and has
Peter's ack.
cheers
The following changes since commit b6b79dd53082db11070b4368d85dd6699ff0b063:
Alexey Kardashevskiy writes:
> On 04/12/2020 12:25, Michael Ellerman wrote:
>> Dmitry Vyukov writes:
>>> On Thu, Dec 3, 2020 at 10:19 AM Dmitry Vyukov wrote:
>>>> On Thu, Dec 3, 2020 at 10:10 AM Alexey Kardashevskiy
>>>> wrote:
>>>>&g
uot;M68K ON APPLE MACINTOSH" section
> accordingly.
>
> Cc: Michael Ellerman
> Cc: Benjamin Herrenschmidt
> Cc: Joshua Thompson
> Cc: linuxppc-...@lists.ozlabs.org
> Cc: linux-m...@lists.linux-m68k.org
> Signed-off-by: Finn Thain
> ---
> MAINTAINERS | 2 ++
> 1 fi
>
> Signed-off-by: Michal Suchanek
> ---
> arch/powerpc/lib/ppc_ksyms.c | 1 -
> 1 file changed, 1 deletion(-)
Acked-by: Michael Ellerman
cheers
> diff --git a/arch/powerpc/lib/ppc_ksyms.c b/arch/powerpc/lib/ppc_ksyms.c
> index c7f8e9586316..4b81fd96aa3e 100644
> --- a/arch/p
Christophe Leroy writes:
> Since some time now, printk() adds carriage return, leading to
> unusable xmon output:
>
> [ 54.288722] sysrq: Entering xmon
> [ 54.292209] Vector: 0 at [cace3d2c]
> [ 54.292274] pc:
> [ 54.292331] c0023650
...
> diff --git a/arch/powerpc/xmon/nonstdio.c
Dmitry Vyukov writes:
> On Thu, Dec 3, 2020 at 10:19 AM Dmitry Vyukov wrote:
>> On Thu, Dec 3, 2020 at 10:10 AM Alexey Kardashevskiy wrote:
>> >
>> > Hi!
>> >
>> > Syzkaller triggered WARN_ON_ONCE at
>> >
>> >
Christophe Leroy writes:
> Sometimes, NULL pointer dereferences are expected. Even when they
> are accidental they are unlikely an exploit attempt because the
> first page is never mapped.
The first page can be mapped if mmap_min_addr is 0.
Blocking all faults to the first page would
Borislav Petkov writes:
> On Tue, Nov 24, 2020 at 02:30:09PM +0800, Wang ShaoBo wrote:
>> Fix to return -ENODEV error code when edac_pci_add_device() failed instaed
>> of 0 in mv64x60_pci_err_probe(), as done elsewhere in this function.
>>
>> Fixes: 4f4aeeabc061 ("drivers-edac: add marvell
Arnd Bergmann writes:
...
>
> If there are no objections, I can also send a patch to remove
> CONFIG_PPC_CELL_NATIVE, PPC_IBM_CELL_BLADE and
> everything that depends on those symbols, leaving only the
> bits needed by ps3 in the arch/powerpc/platforms/cell directory.
I'm not sure I'd merge it.
/configs/powernv_defconfig | 1 -
> 1 file changed, 1 deletion(-)
Acked-by: Michael Ellerman
cheers
> diff --git a/arch/powerpc/configs/powernv_defconfig
> b/arch/powerpc/configs/powernv_defconfig
> index cf30fc24413b..60a30fffeda0 100644
> --- a/arch/powerpc/configs/powernv_defconf
Qinglang Miao writes:
> kfree(cpu_drcs) should be called when it fails to perform
> of_find_node_by_path("/cpus") in dlpar_cpu_add_by_count,
> otherwise there would be a memleak.
>
> In fact, the patch a0ff72f9f5a7 ought to remove kfree in
> find_dlpar_cpus_to_add rather than
(1):
KVM: PPC: Book3S HV: XIVE: Fix possible oops when accessing ESB page
Michael Ellerman (2):
powerpc: Drop -me200 addition to build flags
Merge tag 'powerpc-cve-2020-4788' into fixes
Nicholas Piggin (2):
powerpc/64s: Fix KVM system reset handling when CONFIG_PPC_PSERIES
Marc Zyngier writes:
> On 2020-11-25 16:24, Laurent Vivier wrote:
>> On 25/11/2020 17:05, Denis Kirjanov wrote:
>>> On 11/25/20, Laurent Vivier wrote:
With virtio multiqueue, normally each queue IRQ is mapped to a CPU.
But since commit 0d9f0a52c8b9f ("virtio_scsi: use virtio IRQ
the CPUs
> on pseries.
>
> BugId: https://bugzilla.redhat.com/show_bug.cgi?id=1702939
> Signed-off-by: Laurent Vivier
> Reviewed-by: Greg Kurz
> ---
> arch/powerpc/platforms/pseries/msi.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
Acked-by: Michael Ellerman
On Tue, 10 Nov 2020 10:56:01 +0800, xiakaixu1...@gmail.com wrote:
> Fixes coccicheck warning:
>
> ./arch/powerpc/mm/pgtable_32.c:87:11-12: WARNING comparing pointer to 0
>
> Avoid pointer type value compared to 0.
Applied to powerpc/next.
[1/1] powerpc/mm: Fix comparing pointer to 0 warning
On Tue, 10 Nov 2020 19:19:30 +0800, xiakaixu1...@gmail.com wrote:
> Fix coccicheck warning:
>
> ./arch/powerpc/platforms/powernv/pci-sriov.c:443:7-10: WARNING: Unsigned
> expression compared with zero: win < 0
> ./arch/powerpc/platforms/powernv/pci-sriov.c:462:7-10: WARNING: Unsigned
>
On Wed, 11 Nov 2020 15:53:14 +0100, David Hildenbrand wrote:
> Based on latest linux/master
>
> powernv/memtrace is the only in-kernel user that rips out random memory
> it never added (doesn't own) in order to allocate memory without a
> linear mapping. Let's stop abusing memory hot(un)plug
On Wed, 4 Nov 2020 18:59:10 +0800, Youling Tang wrote:
> Use the common INIT_DATA_SECTION rule for the linker script in an effort
> to regularize the linker script.
Applied to powerpc/next.
[1/1] powerpc: Use the common INIT_DATA_SECTION macro in vmlinux.lds.S
On Fri, 23 Oct 2020 10:45:39 +0800, Po-Hsu Lin wrote:
> The eeh-basic test got its own 60 seconds timeout (defined in commit
> 414f50434aa2 "selftests/eeh: Bump EEH wait time to 60s") per breakable
> device.
>
> And we have discovered that the number of breakable devices varies
> on different
On Wed, 28 Oct 2020 17:15:51 +0800, Qinglang Miao wrote:
> I noticed that iounmap() of msgr_block_addr before return from
> mpic_msgr_probe() in the error handling case is missing. So use
> devm_ioremap() instead of just ioremap() when remapping the message
> register block, so the mapping will be
On Thu, 29 Oct 2020 17:27:14 +0100, David Hildenbrand wrote:
> powernv/memtrace is the only in-kernel user that rips out random memory
> it never added (doesn't own) in order to allocate memory without a
> linear mapping. Let's stop abusing memory hot(un)plug infrastructure for
> that - use
On Thu, 22 Oct 2020 14:05:46 + (UTC), Christophe Leroy wrote:
> fls() and fls64() are using __builtin_ctz() and _builtin_ctzll().
> On powerpc, those builtins trivially use ctlzw and ctlzd power
> instructions.
>
> Allthough those instructions provide the expected result with
> input argument
On Sun, 8 Nov 2020 16:57:35 + (UTC), Christophe Leroy wrote:
> In head_64.S, we have two places using RFI to return to
> kernel. Use RFI_TO_KERNEL instead.
>
> They are the two only places using RFI on book3s/64, so
> the RFI macro can go away.
Applied to powerpc/next.
[1/3] powerpc/64s:
On Tue, 3 Nov 2020 18:07:11 + (UTC), Christophe Leroy wrote:
> This is a series to switch powerpc VDSO to generic C implementation.
>
> Changes in v13:
> - Reorganised headers to avoid the need for a fake 32 bits config for
> building VDSO32 on PPC64
> - Rebased after the removal of powerpc
On Wed, 28 Oct 2020 09:04:33 +0100, Ard Biesheuvel wrote:
> Commit 7053f80d9696 ("powerpc/64: Prevent stack protection in early boot")
> introduced a couple of uses of __attribute__((optimize)) with function
> scope, to disable the stack protector in some early boot code.
>
> Unfortunately, and
Namhyung Kim writes:
> Hello,
>
> On Mon, Nov 23, 2020 at 8:00 PM Michael Ellerman wrote:
>>
>> Namhyung Kim writes:
>> > Hi Peter and Kan,
>> >
>> > (Adding PPC folks)
>> >
>> > On Tue, Nov 17, 2020 at 2:01 PM Namhyung Kim wro
Daniel Axtens writes:
> Thanks sfr and mpe.
>
>> Applied to powerpc/fixes.
>>
>> [1/1] powerpc/64s: Fix allnoconfig build since uaccess flush
>>
>> https://git.kernel.org/powerpc/c/b6b79dd53082db11070b4368d85dd6699ff0b063
>
> We also needed a similar fix for stable, which has also been
Oleg Nesterov writes:
> Christophe, et al,
>
> So what?
>
> Are you going to push your change or should I re-send 1-2 without
> whitespace cleanups?
I'll take your 1 & 2 and fixup the whitespace issues when applying.
cheers
> On 11/19, Oleg Nesterov wrote:
>>
>> On 11/19, Christophe Leroy
On Mon, 23 Nov 2020 18:40:16 +1100, Stephen Rothwell wrote:
> After merging most of the trees, today's linux-next build (powerpc64
> allnoconfig) failed like this:
>
> In file included from arch/powerpc/include/asm/kup.h:18,
> from arch/powerpc/include/asm/uaccess.h:9,
>
Namhyung Kim writes:
> Hi Peter and Kan,
>
> (Adding PPC folks)
>
> On Tue, Nov 17, 2020 at 2:01 PM Namhyung Kim wrote:
>>
>> Hello,
>>
>> On Thu, Nov 12, 2020 at 4:54 AM Liang, Kan wrote:
>> >
>> >
>> >
>> > On 11/11/2020 11:25 AM, Peter Zijlstra wrote:
>> > > On Mon, Nov 09, 2020 at
pf.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
I hit that and thought I'd sent a patch for it, but seems I never
actually sent it.
So thanks. I assume Shuah will take it.
Acked-by: Michael Ellerman
cheers
> diff --git a/tools/testing/selftests/seccomp/seccomp_bpf.c
David Hildenbrand writes:
> On 17.11.20 16:51, Oscar Salvador wrote:
>> On Wed, Nov 11, 2020 at 03:53:21PM +0100, David Hildenbrand wrote:
>>> Let's revert what we did in case seomthing goes wrong and we return an
>> "something" :-)
>
> Thanks! :)
>
> @Michael, I assume if I don't have to resend,
"Gustavo A. R. Silva" writes:
> On Tue, Nov 17, 2020 at 11:10:26AM -0800, Nick Desaulniers wrote:
>> On Mon, Nov 16, 2020 at 7:02 PM Nathan Chancellor
>> wrote:
>> >
>> > On Sun, Nov 15, 2020 at 08:35:31PM -0800, Nick Desaulniers wrote:
>> > > This reverts commit 6a9dc5fd6170 ("lib: Revert use
com/ClangBuiltLinux/linux/issues/236
> Signed-off-by: Nick Desaulniers
> ---
> arch/powerpc/kernel/prom_init.c | 1 +
> arch/powerpc/kernel/uprobes.c | 1 +
> arch/powerpc/perf/imc-pmu.c | 1 +
> 3 files changed, 3 insertions(+)
Acked-by: Michael Ellerman
cheers
t; -include compiler_types.h like the main kernel does, though testing that
> produces a whole sea of warnings to cleanup. This approach is minimally
> invasive.
>
> arch/powerpc/boot/Makefile | 1 +
> arch/powerpc/boot/decompress.c | 1 -
> 2 files changed, 1 insertion(+), 1 deletion(-)
Acked-by: Michael Ellerman
cheers
On Mon, 16 Nov 2020 23:09:13 +1100, Michael Ellerman wrote:
> Currently a build with CONFIG_E200=y will fail with:
>
> Error: invalid switch -me200
> Error: unrecognized option -me200
>
> Upstream binutils has never supported an -me200 option. Presumably it
> was su
kefile | 4 +++-
> arch/arm64/Kconfig| 1 +
> arch/arm64/Makefile | 4
> arch/powerpc/Kconfig | 1 +
> arch/powerpc/Makefile | 1 -
Acked-by: Michael Ellerman (powerpc)
> arch/x86/Kconfig | 1 +
> arch
Andrew Donnellan writes:
> On 10/11/20 10:19 pm, xiakaixu1...@gmail.com wrote:
>> From: Kaixu Xia
>>
>> Fix coccicheck warning:
>>
>> ./arch/powerpc/platforms/powernv/pci-sriov.c:443:7-10: WARNING: Unsigned
>> expression compared with zero: win < 0
>>
Wang Qing writes:
> PREEMPT_RT is a separate preemption model, CONFIG_PREEMPT will
> be disabled when CONFIG_PREEMPT_RT is enabled, so we need
> to add CONFIG_PREEMPT_RT output to __die().
>
> Signed-off-by: Wang Qing
Something fairly similar was posted previously.
That time I said:
I
that we can't even build test, so drop the
addition of -me200 to the build flags, so we can at least build with
CONFIG_E200=y.
Reported-by: Németh Márton
Reported-by: kernel test robot
Signed-off-by: Michael Ellerman
---
More discussion:
https://lore.kernel.org/lkml/202011131146.g8dplqdd
Christophe Leroy writes:
> Le 14/11/2020 à 01:20, Segher Boessenkool a écrit :
>> On Fri, Nov 13, 2020 at 12:14:18PM -0800, Nick Desaulniers wrote:
>> Error: invalid switch -me200
>> Error: unrecognized option -me200
>
> 251 cpu-as-$(CONFIG_E200) += -Wa,-me200
>
> Are
On Mon, 12 Oct 2020 08:54:31 + (UTC), Christophe Leroy wrote:
> The kernel expects pte_young() to work regardless of CONFIG_SWAP.
>
> Make sure a minor fault is taken to set _PAGE_ACCESSED when it
> is not already set, regardless of the selection of CONFIG_SWAP.
>
> This adds at least 3
On Sat, 10 Oct 2020 15:14:29 + (UTC), Christophe Leroy wrote:
> The kernel expects pte_young() to work regardless of CONFIG_SWAP.
>
> Make sure a minor fault is taken to set _PAGE_ACCESSED when it
> is not already set, regardless of the selection of CONFIG_SWAP.
Applied to powerpc/fixes.
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