This is backport for 4.19 and 4.14
(cherry picked from commit bba496656a73fc1d1330b49c7f82843836e9feb1)
Boot fails with GCC latent entropy plugin enabled.
This is due to early boot functions trying to access 'latent_entropy'
global data while the kernel is not relocated at its final
destination
This is backport for 4.9
(cherry picked from commit bba496656a73fc1d1330b49c7f82843836e9feb1)
Boot fails with GCC latent entropy plugin enabled.
This is due to early boot functions trying to access 'latent_entropy'
global data while the kernel is not relocated at its final
destination yet.
As t
This is backport for 5.10
(cherry picked from commit bba496656a73fc1d1330b49c7f82843836e9feb1)
Boot fails with GCC latent entropy plugin enabled.
This is due to early boot functions trying to access 'latent_entropy'
global data while the kernel is not relocated at its final
destination yet.
As
This is backport for 5.16 and 5.15
(cherry picked from commit bba496656a73fc1d1330b49c7f82843836e9feb1)
Boot fails with GCC latent entropy plugin enabled.
This is due to early boot functions trying to access 'latent_entropy'
global data while the kernel is not relocated at its final
destination
This is backport for 5.4
(cherry picked from commit bba496656a73fc1d1330b49c7f82843836e9feb1)
Boot fails with GCC latent entropy plugin enabled.
This is due to early boot functions trying to access 'latent_entropy'
global data while the kernel is not relocated at its final
destination yet.
As t
On 603 core, TLB miss handler don't do any change to the
page tables so pte_update() doesn't need to be atomic.
Signed-off-by: Christophe Leroy
---
arch/powerpc/include/asm/book3s/32/pgtable.h | 37
1 file changed, 22 insertions(+), 15 deletions(-)
diff --git a/arch/powerpc
When certain PHB HW failure causes phyp to recover PHB, it marks the PE
state as temporarily unavailable until recovery is complete. This also
triggers an EEH handler in Linux which needs to notify drivers, and perform
recovery. But before notifying the driver about the pci error it uses
get_adapte
On Sun, Jan 30, 2022 at 6:54 AM Guo Ren wrote:
> On Sun, Jan 30, 2022 at 6:41 AM Arnd Bergmann wrote:
> >
> > I would make these endian-specific, and reverse them on big-endian
> > architectures. That way it
> > should be possible to share them across all compat architectures
> > without needing
On Sun, Jan 30, 2022 at 6:47 AM Guo Ren wrote:
>
> On Sun, Jan 30, 2022 at 5:56 AM Arnd Bergmann wrote:
> >
> > On Sat, Jan 29, 2022 at 1:17 PM wrote:
> > > +
> > > +#define COMPAT_RLIM_INFINITY 0x7fff
> > >
> > > +#define F_GETLK64 12
> > > +#define F_SETLK64 13
> > > +#define F
On Sat, Jan 29, 2022 at 05:26:10PM +, Christophe Leroy wrote:
> This is a backport for 5.16 and 5.15.
>
> To apply, it also requires commit 37eb7ca91b69 ("powerpc/32s: Allocate
> one 256k IBAT instead of two consecutives 128k IBATs")
Thanks for these, now queued up.
greg k-h
On Sun, Jan 30, 2022 at 09:45:10AM +, Christophe Leroy wrote:
> This is backport for 4.19 and 4.14
>
> (cherry picked from commit bba496656a73fc1d1330b49c7f82843836e9feb1)
>
> Boot fails with GCC latent entropy plugin enabled.
All now queued up, thanks,
greg k-h
On Sun, Jan 30, 2022 at 7:32 PM Arnd Bergmann wrote:
>
> On Sun, Jan 30, 2022 at 6:54 AM Guo Ren wrote:
> > On Sun, Jan 30, 2022 at 6:41 AM Arnd Bergmann wrote:
> > >
> > > I would make these endian-specific, and reverse them on big-endian
> > > architectures. That way it
> > > should be possibl
On Fri, Dec 10, 2021 at 11:19:26PM +0100, Thomas Gleixner wrote:
> From: Thomas Gleixner
>
> Replace open coded MSI descriptor chasing and use the proper accessor
> functions instead.
>
> Signed-off-by: Thomas Gleixner
> Reviewed-by: Greg Kroah-Hartman
> Reviewed-by: Jason Gunthorpe
This pat
arch/powerpc/mm/ptdump/hashpagetable.c:264:29: warning: restricted __be64
degrades to integer
arch/powerpc/mm/ptdump/hashpagetable.c:265:49: warning: restricted __be64
degrades to integer
arch/powerpc/mm/ptdump/hashpagetable.c:267:36: warning: incorrect type in
assignment (different base t
https://bugzilla.kernel.org/show_bug.cgi?id=215389
--- Comment #9 from Erhard F. (erhar...@mailbox.org) ---
Created attachment 300354
--> https://bugzilla.kernel.org/attachment.cgi?id=300354&action=edit
dmesg (5.10-rc2 with ADB_PMU disabled, PowerMac G4 DP)
Took a little time but I double check
Hi Luke,
Interesting to read about the project, thanks for the post.
Excerpts from Luke Kenneth Casson Leighton's message of January 3, 2022 10:45
am:
> i am pleased to be able to announce the successful booting of microwatt-5.7
> linux buildroot... under a veriilator simulation of the microwatt
When ld detects unaligned relocations, it emits R_PPC64_UADDR64
relocations instead of R_PPC64_RELATIVE. Currently R_PPC64_UADDR64 are
detected by arch/powerpc/tools/relocs_check.sh and expected not to work.
Below is a simple chunk to trigger this behaviour:
\#pragma GCC push_options
\#pragma GCC
On January 31, 2022 3:31:41 AM UTC, Nicholas Piggin wrote:
>Hi Luke,
>
>Interesting to read about the project, thanks for the post.
no problem. it's been i think 18 years since i last did linux kernel work.
>> i also had to fix a couple of things in the linux kernel source
>> https://git.kern
On Fri, Jan 28, 2022 at 04:15:40PM +0100, David Hildenbrand wrote:
> ... and call node_dev_init() after memory_dev_init() from driver_init(),
> so before any of the existing arch/subsys calls. All online nodes should
> be known at that point.
>
> This is in line with memory_dev_init(), which initi
Le 31/01/2022 à 05:14, Alexey Kardashevskiy a écrit :
> When ld detects unaligned relocations, it emits R_PPC64_UADDR64
> relocations instead of R_PPC64_RELATIVE. Currently R_PPC64_UADDR64 are
> detected by arch/powerpc/tools/relocs_check.sh and expected not to work.
> Below is a simple chunk to
Hi all,
currenty the compat fcnt definitions are duplicate for all compat
architectures, and the native fcntl64 definitions aren't even usable
from userspace due to a bogus CONFIG_64BIT ifdef. This series tries
to sort out all that.
Changes since v1:
- only make the F*64 defines uapi visible fo
Signed-off-by: Christoph Hellwig
---
include/uapi/asm-generic/fcntl.h | 2 --
tools/include/uapi/asm-generic/fcntl.h | 2 --
2 files changed, 4 deletions(-)
diff --git a/include/uapi/asm-generic/fcntl.h b/include/uapi/asm-generic/fcntl.h
index ecd0f5bdfc1d6..caa482e3b01af 100644
--- a/incl
Add a new __ARCH_FLOCK_EXTRA_SYSID macro following the style of
__ARCH_FLOCK_PAD to avoid having a separate definition just for one
architecture.
Signed-off-by: Christoph Hellwig
---
arch/mips/include/uapi/asm/fcntl.h | 26 +++---
include/uapi/asm-generic/fcntl.h |
Don't bother to define the symbols empty, just don't use them. That
makes the intent a little more clear.
Signed-off-by: Christoph Hellwig
---
include/uapi/asm-generic/fcntl.h | 12
tools/include/uapi/asm-generic/fcntl.h | 12
2 files changed, 8 insertions(+), 16
The F_GETLK64/F_SETLK64/F_SETLKW64 fcntl opcodes are only implemented
for the 32-bit syscall APIs, but are also needed for compat handling
on 64-bit kernels.
Consolidate them in unistd.h instead of definining the internal compat
definitions in compat.h, which is rather errror prone (e.g. parisc
ge
Provide a single common definition for the compat_flock and
compat_flock64 structures using the same tricks as for the native
variants. Another extra define is added for the packing required on
x86.
Signed-off-by: Christoph Hellwig
---
arch/arm64/include/asm/compat.h | 16
ar
Since commit 84de6ab0e904 ("powerpc/603: don't handle PAGE_ACCESSED
in TLB miss handlers.") page table is not updated anymore by
TLB miss handlers.
Remove the comment.
Signed-off-by: Christophe Leroy
---
arch/powerpc/kernel/head_book3s_32.S | 8
1 file changed, 8 deletions(-)
diff --g
On book3s/32 MMU, PP bits don't offer kernel RO protection,
kernel pages are always RW.
However, on the 603 a page fault is always generated when the
C bit (change bit = dirty bit) is not set.
Enforce kernel RO protection by clearing C bit in TLB miss
handler when the page doesn't have _PAGE_RW f
https://bugzilla.kernel.org/show_bug.cgi?id=215389
--- Comment #10 from Christophe Leroy (christophe.le...@csgroup.eu) ---
Thanks for the tests.
I'm not surprised that the system doesn't poweroff or reboot without ADB_PMU
because the PMU manages power.
The "neverending build" is maybe because th
On 31.01.22 07:23, Oscar Salvador wrote:
> On Fri, Jan 28, 2022 at 04:15:40PM +0100, David Hildenbrand wrote:
>> ... and call node_dev_init() after memory_dev_init() from driver_init(),
>> so before any of the existing arch/subsys calls. All online nodes should
>> be known at that point.
>>
>> This
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