Re: [PATCH 3/3] EDAC: mv64x60: replace in_le32/out_le32 with ioread32/iowrite32

Borislav Petkov writes: > Top-posting so that the PPC list can see the whole patch below. > > Since I don't know PPC, let me add PPC ML to CC for a confirmation this > change is correct. > > Which brings me to the tangential: this driver is from 2006-ish and > is for some

Re: [PATCH 1/2] powerpc/jprobes: Save and restore the parameter save area

"Naveen N. Rao" writes: > As pointed out in x86 setjmp_pre_handler(), we need to save and restore > the parameter save area since the jprobe hook might overwrite it. Since > there is no easy way to identify the size of the parameter save area, > we choose to

Re: [PATCH v3 2/2] powerpc/mm/hugetlb: Add support for 1G huge pages

"Aneesh Kumar K.V" writes: > POWER9 supports hugepages of size 2M and 1G in radix MMU mode. This patch > enables the usage of 1G page size for hugetlbfs. This also update the helper > such we can do 1G page allocation at runtime. > > We still don't enable 1G page

Re: kernel BUG at mm/usercopy.c:72!

Laura Abbott writes: > On 05/16/2017 07:32 AM, Kees Cook wrote: >> On Tue, May 16, 2017 at 4:09 AM, Michael Ellerman >> wrote: >>> [Cc'ing the relevant folks] >>> >>> Breno Leitao writes: Hello, Kernel 4.12-rc1 is

Re: [PATCH 3/3] EDAC: mv64x60: replace in_le32/out_le32 with ioread32/iowrite32

On Wed, May 17, 2017 at 11:16 PM, Chris Packham wrote: > On 18/05/17 06:18, Borislav Petkov wrote: > One thing I would like confirmation on is is in_le32 -> ioread32 the > correct change? I tossed up between ioread32 and readl. Looking at > mv643xx_eth.c which

Re: [PATCH] powerpc/sequoia: fix NAND partitions not to overlap

On Wed, 17 May 2017 14:06:13 +0200 Pavel Machek wrote: > On Sun 2017-04-02 12:05:36, Pavel Machek wrote: > > Fix overlapping NAND partitions. > > > > Signed-off-by: Pavel Machek > > Ping? Two partitions at same place are bad news... Please expand on "bad news"?

Re: [PATCH 3/3] EDAC: mv64x60: replace in_le32/out_le32 with ioread32/iowrite32

On 18/05/17 06:18, Borislav Petkov wrote: > Top-posting so that the PPC list can see the whole patch below. > > Since I don't know PPC, let me add PPC ML to CC for a confirmation this > change is correct. > > Which brings me to the tangential: this driver is from 2006-ish and > is for some

Re: [PATCH 3/3] EDAC: mv64x60: replace in_le32/out_le32 with ioread32/iowrite32

Top-posting so that the PPC list can see the whole patch below. Since I don't know PPC, let me add PPC ML to CC for a confirmation this change is correct. Which brings me to the tangential: this driver is from 2006-ish and is for some "Marvell MV64x60 Memory Controller kernel module for PPC

Re: [PATCH] powerpc/sequoia: fix NAND partitions not to overlap

On Sun 2017-04-02 12:05:36, Pavel Machek wrote: > Fix overlapping NAND partitions. > > Signed-off-by: Pavel Machek Ping? Two partitions at same place are bad news... Pavel > diff --git

Re: [PATCH v2] powerpc/fadump: set an upper limit for boot memory size

Hi Michael, On Friday 24 February 2017 05:54 PM, Hari Bathini wrote: By default, 5% of system RAM is reserved for preserving boot memory. Alternatively, a user can specify the amount of memory to reserve. See Documentation/powerpc/firmware-assisted-dump.txt for details. In addition to the

Re: [PATCH 3/9] kthread: remove unused macros

On Tue 2017-05-16 13:48:06, Christoph Hellwig wrote: > KTHREAD_DELAYED_WORK_INIT and DEFINE_KTHREAD_DELAYED_WORK are unused > and are using a timer helper that's about to go away. A patch using this API is flying around, see

Re: [PATCH 1/3] powerpc: Add __hard_irqs_disabled()

On Tue, 2017-05-16 at 14:56 +0530, Aneesh Kumar K.V wrote: > Add __hard_irqs_disabled() similar to arch_irqs_disabled to check whether irqs > are hard disabled. > > Signed-off-by: Aneesh Kumar K.V > --- > arch/powerpc/include/asm/hw_irq.h | 7 +++ > 1 file

Re: kernel BUG at mm/usercopy.c:72!

> > Kees, depending on how that turns out we may ask you to revert > > 517e1fbeb65f ("mm/usercopy: Drop extra is_vmalloc_or_module() check"). > > That's fine by me. Let me know what you think would be best. > > Laura, I don't see much harm in putting this back in place. It seems > like it's just

Re: powerpc/mm: Fix crash in page table dump with huge pages

On Tue, 2017-05-16 at 10:50:35 UTC, Michael Ellerman wrote: > The page table dump code doesn't know about huge pages, so currently > it crashes (or walks random memory, usually leading to a crash), if it > finds a huge page. On Book3S we only see huge pages in the Linux page > tables when we're

Re: powerpc/kprobes: Fix handling of instruction emulation on probe re-entry

On Mon, 2017-05-15 at 18:10:05 UTC, "Naveen N. Rao" wrote: > Commit 22d8b3dec214c ("powerpc/kprobes: Emulate instructions on kprobe > handler re-entry") enabled emulating instructions on kprobe re-entry, > rather than single-stepping always. However, we didn't update the single > stepping code to

Re: powernv:idle: Set NAPSTATELOST after recovering paca on P9 DD1

On Fri, 2017-05-12 at 09:22:06 UTC, "Gautham R. Shenoy" wrote: > From: "Gautham R. Shenoy" > > commit 17ed4c8f81da ("powerpc/powernv: Recover correct PACA on wakeup > from a stop on P9 DD1") promises to set the NAPSTATELOST bit in paca > after recovering the correct paca

Re: powerpc/modules: If mprofile-kernel is enabled add it to vermagic

On Wed, 2017-05-10 at 06:57:49 UTC, Michael Ellerman wrote: > On powerpc we can build the kernel with two different ABIs for mcount(), which > is used by ftrace. Kernels built with one ABI do not know how to load modules > built with the other ABI. The new style ABI is called "mprofile-kernel",

Re: [2/2] selftests/powerpc: Test TM and VMX register state

On Mon, 2017-05-08 at 07:16:27 UTC, Michael Neuling wrote: > Test that the VMX checkpointed register state is maintained when a VMX > unavailable exception is taken during a transaction. > > Thanks to Breno Leitao and > Gustavo Bueno Romero for the

Re: [1/2] powerpc/tm: Fix FP and VMX register corruption

On Mon, 2017-05-08 at 07:16:26 UTC, Michael Neuling wrote: > In this commit: > commit dc3106690b20305c3df06b42456fe386dd632ac9 > Author: Cyril Bur > powerpc: tm: Always use fp_state and vr_state to store live registers > > A section of code was removed that copied the

Re: [PATCH 1/1] futex: remove duplicated code

On 05/15/2017, 03:16 PM, Will Deacon wrote: > Whilst I think this is a good idea, the code in question actually results > in undefined behaviour per the C spec and is reported by UBSAN. Hi, yes, I know -- this patch was the 1st from the series of 3 which I sent a long time ago to fix that up too.

Re: [PATCH v8 07/10] powerpc/perf: PMU functions for Core IMC and hotplugging

Anju T Sudhakar writes: > --- a/arch/powerpc/include/asm/imc-pmu.h > +++ b/arch/powerpc/include/asm/imc-pmu.h > @@ -24,6 +24,7 @@ > */ > #define IMC_MAX_CHIPS32 > #define IMC_MAX_PMUS 32 > +#define IMC_MAX_CORES

Re: [RFC 0/2] Consolidate patch_instruction

Balbir Singh a écrit : On Tue, 2017-05-16 at 22:20 +0200, LEROY Christophe wrote: Balbir Singh a écrit : > patch_instruction is enhanced in this RFC to support > patching via a different virtual address (text_poke_area). > The mapping of

Re: [PATCH] powerpc/mm/hugetlb: Add support for reserving gigantic huge pages via kernel command line

On Wednesday 17 May 2017 10:31 AM, Anshuman Khandual wrote: On 05/16/2017 02:54 PM, Aneesh Kumar K.V wrote: +void __init reserve_hugetlb_gpages(void) +{ + char buf[10]; + phys_addr_t base; + unsigned long gpage_size = 1UL << 34; + static __initdata char