Qian Cai writes:
> On Fri, 2019-06-28 at 17:19 +0530, Anju T Sudhakar wrote:
>> On 6/28/19 9:04 AM, Qian Cai wrote:
>> >
>> > > On Jun 27, 2019, at 11:12 PM, Michael Ellerman
>> > > wrote:
>> > >
>> > > Qian Cai wr
Denis Efremov writes:
> The guard macro __PPC_ASM_H in the header ppc_asm.h
> doesn't match the #ifndef macro _PPC_ASM_H. The patch
> makes them the same.
>
> Signed-off-by: Denis Efremov
> ---
> tools/testing/selftests/powerpc/stringloops/asm/ppc_asm.h | 2 +-
> 1 file changed, 1 insertion(+),
Qian Cai writes:
> Read of debugfs imc_cmd file for a memory-less node will trigger a crash below
> on this power9 machine which has the following NUMA layout.
What type of machine is it?
cheers
> I don't understand why I only saw it recently on linux-next where it
> was tested everyday. I can
Satheesh Rajendran writes:
> On Thu, Jun 27, 2019 at 12:08:01AM +0530, Naveen N. Rao wrote:
>> The recent change enabling HAVE_C_RECORDMCOUNT on powerpc started
>> showing the following issue:
>>
>> # modprobe kprobe_example
>>ftrace-powerpc: Not expected bl: opcode is 3c4c0001
>>
Steven Rostedt writes:
> On Thu, 27 Jun 2019 15:55:47 +1000
> Michael Ellerman wrote:
>
>> Steve are you OK if I merge this via the powerpc tree? I'll reword the
>> commit message so that it makes sense coming prior to the commit
>> mentioned above.
>
> Yes,
"Naveen N. Rao" writes:
> The recent change enabling HAVE_C_RECORDMCOUNT on powerpc started
> showing the following issue:
>
> # modprobe kprobe_example
>ftrace-powerpc: Not expected bl: opcode is 3c4c0001
>WARNING: CPU: 0 PID: 227 at kernel/trace/ftrace.c:2001
> ftrace_bug+0x90/0x318
h that creates
the requirement for arch_ioremap_p4d_supported().
Andrew might do that for you, or you could send a v2.
This looks fine from a powerpc POV:
Acked-by: Michael Ellerman
cheers
> Cc: Benjamin Herrenschmidt
> Cc: Paul Mackerras
> Cc: Michael Ellerman
> Cc: "Aneesh Kumar K.V"
>
The Linux kernel for powerpc since 4.17 has a bug where unrelated processes may
be able to read/write to each other's virtual memory under certain conditions.
This bug only affects machines using 64-bit CPUs with the hash page table MMU,
see below for more detail on affected CPUs.
To trigger the
On Thu, 2019-06-13 at 08:24:46 UTC, Christoph Hellwig wrote:
> With the strict dma mask checking introduced with the switch to
> the generic DMA direct code common wifi chips on 32-bit powerbooks
> stopped working. Add a 30-bit ZONE_DMA to the 32-bit pmac builds
> to allow them to reliably
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Hi Linus,
Please pull some more powerpc fixes for 5.2.
This is a frustratingly large batch at rc5. Some of these were sent earlier but
were missed by me due to being distracted by other things, and some took a while
to track down due to needing
Benjamin Herrenschmidt writes:
> On Wed, 2019-06-19 at 22:32 +1000, Michael Ellerman wrote:
>> Christoph Hellwig writes:
>> > Any chance this could get picked up to fix the regression?
>>
>> Was hoping Ben would Ack it. He's still powermac maintainer :)
>>
Christoph Hellwig writes:
> Any chance this could get picked up to fix the regression?
Was hoping Ben would Ack it. He's still powermac maintainer :)
I guess he OK'ed it in the other thread, will add it to my queue.
cheers
> On Thu, Jun 13, 2019 at 10:24:46AM +0200, Christoph Hellwig wrote:
Hi Naveen,
Sorry I meant to reply to this earlier .. :/
"Naveen N. Rao" writes:
> With -mprofile-kernel, gcc emits 'mflr r0', followed by 'bl _mcount' to
> enable function tracing and profiling. So far, with dynamic ftrace, we
> used to only patch out the branch to _mcount(). However, mflr is
>
Christophe Leroy writes:
> Le 11/06/2019 à 17:47, Christophe Leroy a écrit :
>> The patch referenced below moved the loading of segment registers
>> out of load_up_mmu() in order to do it earlier in the boot sequence.
>> However, the secondary CPU still needs it to be done when loading up
>> the
Ravi Bangoria writes:
> Peter / mpe,
>
> Is the v2 looks good? If so, can anyone of you please pick this up.
I usually wouldn't take it, it's generic perf code. Unless
peter/ingo/acme tell me otherwise.
It's sort of a bug fix for 0819b2e30ccb, should it have a fixes and/or
stable tag?
Fixes:
Geert Uytterhoeven writes:
> "git diff" says:
>
> \ No newline at end of file
>
> after modifying the file.
Is that a problem?
Just curious because it was presumably me that broke it :)
cheers
> diff --git a/tools/testing/selftests/powerpc/mm/.gitignore
>
Andrew Morton writes:
> On Sat, 15 Jun 2019 10:06:54 +0200 Christophe Leroy
> wrote:
>> Le 14/06/2019 à 21:00, Andrew Morton a écrit :
>> > On Fri, 14 Jun 2019 12:01:09 +0200 David Hildenbrand
>> > wrote:
>> >
>> >> We are using a mixture of "int" and "unsigned long". Let's make this
>> >>
On Thu, 2019-05-23 at 08:39:27 UTC, Christophe Leroy wrote:
> Build failure was introduced by the commit identified below,
> due to missed macro expension leading to wrong called function's name.
>
> arch/powerpc/kernel/head_fsl_booke.o: In function `SystemCall':
>
On Tue, 2019-06-11 at 15:47:20 UTC, Christophe Leroy wrote:
> The patch referenced below moved the loading of segment registers
> out of load_up_mmu() in order to do it earlier in the boot sequence.
> However, the secondary CPU still needs it to be done when loading up
> the MMU.
>
> Reported-by:
On Thu, 2019-06-13 at 13:52:30 UTC, Christophe Leroy wrote:
> Use r10 instead of r9 to calculate CPU offset as r9 contains
> the value from SRR1 which is used later.
>
> Fixes: 1a4b739bbb4f ("powerpc/32: implement fast entry for syscalls on BOOKE")
> Signed-off-by: Christophe Leroy
Applied to
On Tue, 2019-06-04 at 11:16:32 UTC, Masahiro Yamada wrote:
> Linux kernel tolerates C++ style comments these days. Actually, the
> SPDX License tags for .c files start with //.
>
> On the other hand, uapi headers are written in more strict C, where
> the C++ comment style is forbidden.
>
>
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Hi Linus,
Please pull some more powerpc fixes for 5.2:
The following changes since commit cd6c84d8f0cdc911df435bb075ba22ce3c605b07:
Linux 5.2-rc2 (2019-05-26 16:49:19 -0700)
are available in the git repository at:
Daniel Axtens writes:
> Pawel Dembicki writes:
>
>> Enable kernel XZ compression option on PPC_85xx. Tested with
>> simpleImage on TP-Link TL-WDR4900 (Freescale P1014 processor).
>>
>> Suggested-by: Christian Lamparter
>> Signed-off-by: Pawel Dembicki
>> ---
>> arch/powerpc/Kconfig | 2 +-
>>
On Mon, 2019-06-03 at 13:00:51 UTC, Christophe Leroy wrote:
> When booting through OF, setup_disp_bat() does nothing because
> disp_BAT are not set. By change, it used to work because BOOTX
> buffer is mapped 1:1 at address 0x8100 by the bootloader, and
> btext_setup_display() sets virt addr
On Mon, 2019-06-03 at 08:20:28 UTC, Christophe Leroy wrote:
> In the old days, _PAGE_EXEC didn't exist on 6xx aka book3s/32.
> Therefore, allthough __mapin_ram_chunk() was already mapping kernel
> text with PAGE_KERNEL_TEXT and the rest with PAGE_KERNEL, the entire
> memory was executable. Part of
Ravi Bangoria writes:
> Powerpc hw triggers watchpoint before executing the instruction.
> To make trigger-after-execute behavior, kernel emulates the
> instruction. If the instruction is 'load something into non-
> volatile register', exception handler should restore emulated
> register state
Anshuman Khandual writes:
> Similar notify_page_fault() definitions are being used by architectures
> duplicating much of the same code. This attempts to unify them into a
> single implementation, generalize it and then move it to a common place.
> kprobes_built_in() can detect CONFIG_KPROBES,
"Martin K. Petersen" writes:
> Nathan,
>
>> clang warns:
>>
>> drivers/scsi/ibmvscsi/ibmvscsi.c:2126:7: warning: variable 'rc' is used
>> uninitialized whenever switch case is taken [-Wsometimes-uninitialized]
>> case IBMVSCSI_HOST_ACTION_NONE:
>> ^
>
"powerpc/perf: Fix oops when kthread
>> >> execs user process")
>> >>
>> >> Reported-by: Ravi Bangoria
>> >> Reported-by: Young Xiao <92siuy...@gmail.com>
>> >> Cc: Ravi Bangoria
>> >> Cc: Naveen N. Rao
>>
On Mon, 2019-05-13 at 10:00:14 UTC, Christophe Leroy wrote:
> quad.o is only for PPC64, and already included in obj64-y,
> so it doesn't have to be in obj-y
>
> Fixes: 31bfdb036f12 ("powerpc: Use instruction emulation infrastructure to
> handle alignment faults")
> Signed-off-by: Christophe
On Sat, 2019-05-04 at 10:24:27 UTC, YueHaibing wrote:
> Fix sparse warnings:
>
> arch/powerpc/mm/book3s64/radix_pgtable.c:326:13: warning: symbol
> 'radix_init_pgtable' was not declared. Should it be static?
> arch/powerpc/mm/book3s64/hash_native.c:48:1: warning: symbol
> 'native_tlbie_lock'
On Sun, 2019-05-26 at 02:42:40 UTC, Gen Zhang wrote:
> In dlpar_parse_cc_property(), 'prop->name' is allocated by kstrdup().
> kstrdup() may return NULL, so it should be checked and handle error.
> And prop should be freed if 'prop->name' is NULL.
>
> Signed-off-by: Gen Zhang
> Acked-by: Nathan
On Sat, 2019-05-04 at 10:27:20 UTC, YueHaibing wrote:
> Fix sparse warning:
>
> drivers/misc/ocxl/pci.c:44:6: warning:
> symbol 'ocxl_remove' was not declared. Should it be static?
>
> Reported-by: Hulk Robot
> Signed-off-by: YueHaibing
> Acked-by: Andrew Donnellan
Applied to powerpc next,
On Fri, 2019-04-19 at 15:34:13 UTC, Greg Kurz wrote:
> Since 902bdc57451c, get_pci_dev() calls pci_get_domain_bus_and_slot(). This
> has the effect of incrementing the reference count of the PCI device, as
> explained in drivers/pci/search.c:
>
> * Given a PCI domain, bus, and slot/function
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Hi Linus,
Please pull some more powerpc fixes for 5.2:
The following changes since commit a188339ca5a396acc588e5851ed7e19f66b0ebd9:
Linux 5.2-rc1 (2019-05-19 15:47:09 -0700)
are available in the git repository at:
Hi Nathan,
Nathan Chancellor writes:
> clang warns:
>
> drivers/scsi/ibmvscsi/ibmvscsi.c:2126:7: warning: variable 'rc' is used
> uninitialized whenever switch case is taken [-Wsometimes-uninitialized]
> case IBMVSCSI_HOST_ACTION_NONE:
> ^
>
Will Deacon writes:
> On Tue, May 28, 2019 at 04:01:03PM +0200, Peter Zijlstra wrote:
>> On Tue, May 28, 2019 at 08:31:29PM +0800, Young Xiao wrote:
>> > When a kthread calls call_usermodehelper() the steps are:
>> > 1. allocate current->mm
>> > 2. load_elf_binary()
>> > 3. populate
Peter Zijlstra writes:
> On Tue, May 28, 2019 at 08:31:29PM +0800, Young Xiao wrote:
>> When a kthread calls call_usermodehelper() the steps are:
>> 1. allocate current->mm
>> 2. load_elf_binary()
>> 3. populate current->thread.regs
>>
>> While doing this, interrupts are not disabled. If
Mathieu Malaterre writes:
> Fix warnings treated as errors with W=1:
>
> arch/powerpc/lib/sstep.c:1172:31: error: variable 'rc' set but not used
> [-Werror=unused-but-set-variable]
>
> Suggested-by: Christophe Leroy
> Signed-off-by: Mathieu Malaterre
> ---
> v2: as suggested prefer
Ravi Bangoria writes:
> On 5/13/19 2:26 PM, Peter Zijlstra wrote:
>> On Mon, May 13, 2019 at 09:42:13AM +0200, Peter Zijlstra wrote:
>>> On Sat, May 11, 2019 at 08:12:16AM +0530, Ravi Bangoria wrote:
Add a check for sample_period value sent from userspace. Negative
value does not make
Christophe Leroy writes:
> Le 23/05/2019 à 09:00, Christophe Leroy a écrit :
>
> [...]
>
>>> arch/powerpc/kernel/head_fsl_booke.o: In function `SystemCall':
>>> arch/powerpc/kernel/head_fsl_booke.S:416: undefined reference to
>>> `kvmppc_handler_BOOKE_INTERRUPT_SYSCALL_SPRN_SRR1'
>>>
Christian Brauner writes:
> This adds basic tests for the new close_range() syscall.
> - test that no invalid flags can be passed
> - test that a range of file descriptors is correctly closed
> - test that a range of file descriptors is correctly closed if there there
> are already closed file
"Rafael J. Wysocki" writes:
> On Friday, May 24, 2019 12:44:18 PM CEST Mathieu Malaterre wrote:
>> The declaration for pfn_is_nosave is only available in
>> kernel/power/power.h. Since this function can be override in arch,
>> expose it globally. Having a prototype will make sure to avoid warning
+
> kernel/power/power.h | 2 --
> 4 files changed, 2 insertions(+), 3 deletions(-)
Looks fine to me.
Acked-by: Michael Ellerman (powerpc)
cheers
On Sat, 2019-05-11 at 02:42:17 UTC, Ravi Bangoria wrote:
> Consider a scenario where user creates two events:
>
> 1st event:
> attr.sample_type |= PERF_SAMPLE_BRANCH_STACK;
> attr.branch_sample_type = PERF_SAMPLE_BRANCH_ANY;
> fd = perf_event_open(attr, 0, 1, -1, 0);
>
> This
on the generic defintion of atomic64_t, this
> still returns long on 64-bit. This will be converted in a subsequent
> patch.
>
> Otherwise, there should be no functional change as a result of this
> patch.
>
> Signed-off-by: Mark Rutland
> Cc: Michael Ellerman
> Cc:
@@ -4,7 +4,6 @@
>
> config OCXL_BASE
> bool
> - default n
> select PPC_COPRO_BASE
>
> config OCXL
Acked-by: Michael Ellerman (ocxl)
cheers
Masahiro Yamada writes:
> On Tue, May 21, 2019 at 3:54 PM Christophe Leroy
> wrote:
>> Le 21/05/2019 à 08:16, Masahiro Yamada a écrit :
>> > With CONFIG_OPTIMIZE_INLINING enabled, Laura Abbott reported error
>> > with gcc 9.1.1:
>> >
>> >arch/powerpc/mm/book3s64/radix_tlb.c: In function
Bharata B Rao writes:
> On Thu, May 16, 2019 at 07:44:20PM +0530, srikanth wrote:
>> Hello,
>>
>> On power9 host, performing memory hotunplug from ppc64le guest results in
>> kernel oops.
>>
>> Kernel used : https://github.com/torvalds/linux/tree/v5.1 built using
>> ppc64le_defconfig for host
On Thu, 2019-05-09 at 12:59:38 UTC, Christophe Leroy wrote:
> flush_hash_pages() runs with data translation off, so current
> task_struct has to be accesssed using physical address.
>
> Reported-by: Erhard F.
> Fixes: f7354ccac844 ("powerpc/32: Remove CURRENT_THREAD_INFO and rename
> TI_CPU")
>
On Wed, 2019-05-15 at 09:07:50 UTC, "Tobin C. Harding" wrote:
> kfree() after kobject_put(). Who ever wrote this was on crack.
>
> Fixes: 7e8039795a80 ("powerpc/cacheinfo: Fix kobject memleak")
> Signed-off-by: Tobin C. Harding
Applied to powerpc fixes, thanks.
):
powerpc/32s: fix flush_hash_pages() on SMP
Michael Ellerman (1):
powerpc/mm: Fix crashes with hugepages & 4K pages
Tobin C. Harding (1):
powerpc/cacheinfo: Remove double free
arch/powerpc/include/asm/book3s/64/hash.h | 6 --
arch/powerpc/kernel/cacheinfo.c
srikanth writes:
> Hello,
>
> On power9 host, performing memory hotunplug from ppc64le guest results
> in kernel oops.
Thanks for the report.
Did this used to work in the past? If so what is the last version that
worked?
> Kernel used : https://github.com/torvalds/linux/tree/v5.1 built using
Greg Kurz writes:
> Michael,
>
> Any comments on this patch ? Should I repost with a shorter comment
> as suggested by Alexey ?
No the longer comment seems fine to me.
I'm not a big fan of the patch, it's basically a hack :)
But for a backportable fix I guess it is OK.
I would be happier
Christophe Leroy writes:
> [Backport of upstream commit b45ba4a51cde29b2939365ef0c07ad34c8321789]
>
> On powerpc32, patch_instruction() is called by apply_feature_fixups()
> which is called from early_init()
>
> There is the following note in front of early_init():
> * Note that the kernel may
"Gautham R. Shenoy" writes:
> From: "Gautham R. Shenoy"
>
> Subject: Re: [RESEND PATCH] powerpc/pseries: Fix cpu_hotplug_lock acquisition
> in resize_hpt
ps. A "RESEND" implies the patch is unchanged and you're just resending
it because it was ignored.
In this case it should have just been
"Gautham R. Shenoy" writes:
> From: "Gautham R. Shenoy"
>
> During a memory hotplug operations involving resizing of the HPT, we
> invoke a stop_machine() to perform the resizing. In this code path, we
> end up recursively taking the cpu_hotplug_lock, first in
> memory_hotplug_begin() and then
Christophe Leroy writes:
> Some SCC functions like the QMC requires an extended parameter RAM.
> On modern 8xx (ie 866 and 885), SPI area can already be relocated,
> allowing the use of those functions on SCC2. But SCC3 and SCC4
> parameter RAM collide with SMC1 and SMC2 parameter RAMs.
>
> This
Borislav Petkov writes:
> On Fri, May 10, 2019 at 04:13:20PM +0200, Borislav Petkov wrote:
>> On Fri, May 10, 2019 at 08:50:52PM +1000, Michael Ellerman wrote:
>> > Yeah that looks better to me. I didn't think about the case where EDAC
>> > core is modular.
>> >
Yury Norov writes:
> On Fri, May 10, 2019 at 01:32:22PM +1000, Michael Ellerman wrote:
>> Yury Norov writes:
>> > On Tue, May 07, 2019 at 08:54:31AM -0400, Rafael Aquini wrote:
>> >> On Mon, May 06, 2019 at 11:53:43AM -0400, Joel Savitz wrote:
>> >> >
Shawn Landden writes:
> It is safe to do SIMD in an interrupt on PowerPC.
No it's not sorry :)
> Only disable when there is no SIMD available
> (and this is a static branch).
>
> Tested and works with the WireGuard (Zinc) patch I wrote that needs this.
> Also improves performance of the crypto
Dmitry Vyukov writes:
> From: Arnd Bergmann
> Date: Sat, May 11, 2019 at 2:51 AM
> To: Dmitry Vyukov
> Cc: Nick Kossifidis, Christoph Hellwig, Linus Torvalds, Andrew Morton,
> linux-arch, Linux Kernel Mailing List, linuxppc-dev
>
>> On Fri, May 10, 2019 at 6:53 AM Dmitry Vyukov wrote:
>> > >
>>
Borislav Petkov writes:
> On Thu, May 09, 2019 at 04:55:34PM +0200, Borislav Petkov wrote:
>> On Fri, May 10, 2019 at 12:52:05AM +1000, Michael Ellerman wrote:
>> > Thanks. It would be nice if you could send it as a fix for 5.2, it's the
>> > last thing blocking on
David Laight writes:
> From: Michal Suchánek
>> Sent: 09 May 2019 14:38
> ...
>> > The problem is the combination of some new code called via printk(),
>> > check_pointer() which calls probe_kernel_read(). That then calls
>> > allow_user_access() (PPC_KUAP) and that uses mmu_has_feature() too
Yury Norov writes:
> On Tue, May 07, 2019 at 08:54:31AM -0400, Rafael Aquini wrote:
>> On Mon, May 06, 2019 at 11:53:43AM -0400, Joel Savitz wrote:
>> > There is currently no easy and architecture-independent way to find the
>> > lowest unusable virtual address available to a process without
>> >
Borislav Petkov writes:
> On Mon, May 06, 2019 at 08:50:45AM +0200, Johannes Thumshirn wrote:
>> Acked-by: Johannes Thumshirn
>
> Queued, thanks.
Thanks. It would be nice if you could send it as a fix for 5.2, it's the
last thing blocking one of my allmodconfig builds. But if you don't
think it
Yury Norov writes:
> On Tue, May 07, 2019 at 11:58:56PM +0100, Al Viro wrote:
>> On Tue, May 07, 2019 at 03:51:21PM -0700, Yury Norov wrote:
>> > Commit ed1cd6deb013 ("powerpc: Activate CONFIG_THREAD_INFO_IN_TASK")
>> > removes the function current_thread_info(). It's wrong because the
>> >
e generic
> ptrace API with PTRACE_GET_SYSCALL_INFO request.
>
> Cc: Michael Ellerman
> Cc: Elvira Khabirova
> Cc: Eugene Syromyatnikov
> Cc: Benjamin Herrenschmidt
> Cc: Paul Mackerras
> Cc: Oleg Nesterov
> Cc: Andy Lutomirski
> Cc: linuxppc-...@lists.ozlabs.org
Christophe Leroy writes:
> Le 26/04/2019 à 17:58, Christophe Leroy a écrit :
>> Book3E 64 is the only subarch not using pte_fragment. In order
>> to allow refactorisation, this patch converts it to pte_fragment.
>>
>> Reviewed-by: Aneesh Kumar K.V
>> Signed-off-by: Christophe Leroy
>> ---
>>
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Hi Linus,
Please pull one more powerpc fix for 5.1:
The following changes since commit 7a3a4d763837d3aa654cd1059030950410c04d77:
powerpc/mm_iommu: Allow pinning large regions (2019-04-17 21:36:51 +1000)
are available in the git repository at:
Joe Perches writes:
> On Fri, 2019-05-03 at 16:59 +1000, Michael Ellerman wrote:
>> On Thu, 2017-03-30 at 10:19:25 UTC, Joe Perches wrote:
>> > Fix fallout too.
>> >
>> > Signed-off-by: Joe Perches
>>
>> Applied to powerpc next,
On Thu, 2019-03-28 at 13:03:45 UTC, Christophe Leroy wrote:
> early_alloc_pgtable() never returns NULL as it panics on failure.
>
> This patch drops the three BUG_ON() which check the non nullity
> of early_alloc_pgtable() returned value.
>
> Signed-off-by: Christophe Leroy
Applied to powerpc
chmidt
> Cc: Paul Mackerras
> Cc: Michael Ellerman
> Cc: linuxppc-...@lists.ozlabs.org
Applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/90437bffa5f9b1440ba03e023f4875d1
cheers
On Thu, 2017-03-30 at 10:19:25 UTC, Joe Perches wrote:
> Fix fallout too.
>
> Signed-off-by: Joe Perches
Applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/1e496391a8452101308a23b7395cdd49
cheers
ined!
We don't want to export those symbols just for this driver, so make
the driver only configurable as a built-in.
This seems to have been broken since at least commit c92132f59806
("edac/85xx: Add PCIe error interrupt edac support") (Nov 2013).
Signed-off-by: Michael Ellerman
---
"Enrico Weigelt, metux IT consult" writes:
> Formatting of Kconfig files doesn't look so pretty, so let the
> Great White Handkerchief come around and clean it up.
>
> Signed-off-by: Enrico Weigelt, metux IT consult
> ---
> arch/powerpc/Kconfig | 28
Thomas Gleixner writes:
> On Mon, 1 Apr 2019, Dave Hansen wrote:
>> diff -puN mm/mmap.c~mpx-rss-pass-no-vma mm/mmap.c
>> --- a/mm/mmap.c~mpx-rss-pass-no-vma 2019-04-01 06:56:53.409411123 -0700
>> +++ b/mm/mmap.c 2019-04-01 06:56:53.423411123 -0700
>> @@ -2731,9 +2731,17 @@ int
lation barrier can be disabled from the command line
>> with the parameter: "nospectre_v1".
>>
>> Signed-off-by: Diana Craciun
>> Signed-off-by: Michael Ellerman
>> Signed-off-by: Sasha Levin
>> ---
>> arch/powerpc/kernel/security.c | 12 ++
Carlos O'Donell writes:
> On 4/8/19 3:20 PM, Tulio Magno Quites Machado Filho wrote:
>> Carlos O'Donell writes:
>>
>>> On 4/5/19 5:16 AM, Florian Weimer wrote:
* Carlos O'Donell:
> It is valuable that it be a trap, particularly for constant pools because
> it means that a jump into
Mathieu Desnoyers writes:
> Hi Carlos,
>
> - On Mar 22, 2019, at 4:09 PM, Carlos O'Donell codon...@redhat.com wrote:
...
>
> [...]
>>> +++ b/sysdeps/unix/sysv/linux/powerpc/bits/rseq.h
> [...]
>>> +/* Signature required before each abort handler code. */
>>> +#define RSEQ_SIG 0x53053053
>>
Mark Brown writes:
> On Wed, Mar 27, 2019 at 03:29:55PM +1100, Michael Ellerman wrote:
>> Mark Brown writes:
>
>> > Hrm, seems PowerPC is still not using the common clock API - is there
>> > any plan for that? There are some ASoC PowerPC uses so it's going to b
Mark Brown writes:
> On Tue, Mar 26, 2019 at 01:33:49PM +1100, Stephen Rothwell wrote:
>
>> After merging the sound-asoc tree, today's linux-next build (powerpc
>> allyesconfig) failed like this:
>
>> sound/soc/codecs/tlv320aic32x4-clk.c: In function 'clk_aic32x4_pll_prepare':
>>
ease within this function.
>
> Fixes: a8db8cf0d894 ("irq_domain: Replace irq_alloc_host() with
> revmap-specific initializers")
> Signed-off-by: Wen Yang
> Suggested-by: Christophe Leroy
> Reviewed-by: Peng Hao
> Cc: Vitaly Bordug
> Cc: Benjamin Herre
: Only define MAX_PHYSMEM_BITS in SPARSEMEM configurations
Christophe Leroy (1):
powerpc/6xx: fix setup and use of SPRN_SPRG_PGDIR for hash32
Michael Ellerman (2):
powerpc/vdso64: Fix CLOCK_MONOTONIC inconsistencies across Y2038
powerpc/security: Fix spectre_v2 reporting
arch
Petr Mladek writes:
> On Thu 2019-03-21 13:59:53, Michael Ellerman wrote:
>> Tetsuo Handa writes:
>> ...
>> > From 91f85d2bd494df2f73c605d8b4747e8cc0a61ae2 Mon Sep 17 00:00:00 2001
>> > From: Tetsuo Handa
>> > Date: Tue, 18 Dec 2018 05:53:04 +090
Hi Tetsuo,
Thanks for implementing this, it's really helpful.
Tetsuo Handa writes:
...
> From 91f85d2bd494df2f73c605d8b4747e8cc0a61ae2 Mon Sep 17 00:00:00 2001
> From: Tetsuo Handa
> Date: Tue, 18 Dec 2018 05:53:04 +0900
> Subject: [PATCH] printk: Add caller information to printk() output.
>
>
On Wed, 2019-03-13 at 13:14:38 UTC, Michael Ellerman wrote:
> Jakub Drnec reported:
> Setting the realtime clock can sometimes make the monotonic clock go
> back by over a hundred years. Decreasing the realtime clock across
> the y2k38 threshold is one reliable way to reproduc
Arnd Bergmann writes:
> On Wed, Mar 13, 2019 at 2:14 PM Michael Ellerman wrote:
>
>> That causes CLOCK_MONOTONIC to jump ahead by ~4 billion seconds which
>> it is not meant to do. Worse, if the time is then set back before the
>> Y2038 boundary CLOCK_MONOTONIC will jum
TCH] powerpc: vdso fixes (take #2)")
Cc: sta...@vger.kernel.org # v2.6.15+
Link: http://lkml.kernel.org/r/hac.zfes.62bwlnvavmp.1st...@seznam.cz
Reported-by: Jakub Drnec
Signed-off-by: Michael Ellerman
---
arch/powerpc/include/asm/vdso_datapage.h | 8
arch/powerpc/kernel/vdso64/gettimeofda
powerpc: Remove trailing semicolon after curly brace
Move static keyword at beginning of declaration
Matteo Croce (1):
powerpc/hvsi: Fix spelling mistake: "lenght" should be "length"
Michael Ellerman (19):
powerpc: Stop using pr_cont() in __die()
p
Linus Torvalds writes:
> On Mon, Mar 4, 2019 at 2:24 AM Michael Ellerman wrote:
>>
>> Without wading into the rest of the discussion, this does raise an
>> interesting point, ie. what about eg. rwlock's?
>>
>> They're basically equivalent to spinlocks, and s
Nicholas Piggin writes:
> Will Deacon's on March 2, 2019 12:03 am:
>> In preparation for removing all explicit mmiowb() calls from driver
>> code, implement a tracking system in asm-generic based loosely on the
>> PowerPC implementation. This allows architectures with a non-empty
>> mmiowb()
Nicholas Piggin writes:
> Michael Ellerman's on March 3, 2019 7:26 pm:
>> Nicholas Piggin writes:
...
>>> what was broken about the powerpc one, which is basically:
>>>
>>> static inline void mmiowb_set_pending(void)
>>> {
>>> struct mmiowb_state *ms = __mmiowb_state();
>>>
On Fri, 2019-03-01 at 14:20:40 UTC, Qian Cai wrote:
> The commit 24b6d4164348 ("mm: pass the vmem_altmap to vmemmap_free")
> removed a line in vmemmap_free(),
>
> altmap = to_vmem_altmap((unsigned long) section_base);
>
> but left a variable no longer used.
>
> arch/powerpc/mm/init_64.c: In
On Wed, 2019-02-27 at 11:45:30 UTC, Christophe Leroy wrote:
> Clear the on-stack STACK_FRAME_REGS_MARKER on exception exit in order
> to avoid confusing stacktrace like the one below.
>
> Call Trace:
> [c0e9dca0] [c01c42a0] print_address_description+0x64/0x2bc (unreliable)
> [c0e9dcd0] [c01c4684]
On Thu, 2019-02-28 at 02:35:05 UTC, Qian Cai wrote:
> arch/powerpc/mm/hugetlbpage-hash64.c: In function '__hash_page_huge':
> arch/powerpc/mm/hugetlbpage-hash64.c:29:28: warning: variable 'sz' set
> but not used [-Wunused-but-set-variable]
>
> Signed-off-by: Qian Cai
Applied to powerpc next,
On Wed, 2019-01-02 at 15:02:03 UTC, Firoz Khan wrote:
> The __SYSCALL macro's arguments are system call number,
> system call entry name and number of arguments for the
> system call.
>
> Argument- nargs in __SYSCALL(nr, entry, nargs) is neither
> calculated nor used anywhere. So it would be
Nicholas Piggin writes:
> Will Deacon's on March 2, 2019 12:03 am:
>> In preparation for removing all explicit mmiowb() calls from driver
>> code, implement a tracking system in asm-generic based loosely on the
>> PowerPC implementation. This allows architectures with a non-empty
>> mmiowb()
Linus Torvalds writes:
> Love the acronym, and the series looks good to me.
>
> Michael - can you check (or maybe you already did?) that this works
> for ppc too, and doesn't have any gotcha's?
Yeah it looks fine to me.
I gave it a quick boot with a patch to count how many mb()s we actually
werpc/include/asm/mmiowb.h
Thanks for fixing our bugs for us, I owe you some more beers :)
I meant to reply to your previous series saying that we could just use
more space in the paca, but you obviously worked that out yourself.
I'll run this through our builders and do some boot tests but I l
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