From: YueHaibing
Fixes gcc '-Wunused-but-set-variable' warning:
drivers/crypto/nx/nx-842.c: In function 'decompress':
drivers/crypto/nx/nx-842.c:356:25: warning: variable 'dpadding' set but not
used [-Wunused-but-set-variable]
drivers/crypto/nx/nx-842-pseries.c: In function
This patch fix the below section mismatch warnings.
WARNING: vmlinux.o(.text+0x2d1f44): Section mismatch in reference from the
function devm_memremap_pages_release() to the function
.meminit.text:arch_remove_memory()
WARNING: vmlinux.o(.text+0x2d265c): Section mismatch in reference from the
This move the dependency to DEV_DAX_PMEM_COMPAT such that only
if DEV_DAX_PMEM is built as module we can allow the compat support.
This allows to test the new code easily in a emulation setup where we
often build things without module support.
Signed-off-by: Aneesh Kumar K.V
---
With some architectures like ppc64, set_pmd_at() cannot cope with
a situation where there is already some (different) valid entry present.
Use pmdp_set_access_flags() instead to modify the pfn which is built to
deal with modifying existing PMD entries.
This is similar to
commit cae85cb8add3
Steven Rostedt's on March 30, 2019 1:31 am:
> [ Added Peter ]
>
> On Fri, 29 Mar 2019 19:13:55 +1000
> Nicholas Piggin wrote:
>
>> Suraj Jitindar Singh's on March 29, 2019 3:20 pm:
>> > On Wed, 2019-03-27 at 17:51 +0100, Cédric Le Goater wrote:
>> >> On 3/27/19 5:37 PM, Cédric Le Goater
On Fri, Mar 29, 2019 at 01:07:07PM +, George Spelvin wrote:
> I was working on some scaling code that can benefit from 64x64->128-bit
> multiplies. GCC supports an __int128 type on processors with hardware
> support (including z/Arch and MIPS64), but the support was broken on
> early
From: Nathan Fontenot
[ Upstream commit cd24e457fd8b2d087d9236700c8d2957054598bf ]
When a PRRN event is received we are already running in a worker
thread. Instead of spawning off another worker thread on the prrn_work
workqueue to handle the PRRN event we can just call the PRRN handler
routine
From: Nathan Fontenot
[ Upstream commit cd24e457fd8b2d087d9236700c8d2957054598bf ]
When a PRRN event is received we are already running in a worker
thread. Instead of spawning off another worker thread on the prrn_work
workqueue to handle the PRRN event we can just call the PRRN handler
routine
On Fri, Mar 29, 2019 at 9:01 AM wrote:
>
> From: Laurentiu Tudor
>
> Prior to calling iommu_map()/iommu_unmap() page align the size or
> failures such as below could happen:
>
> iommu: unaligned: iova 0x... pa 0x... size 0x4000 min_pagesz 0x1
> qman_portal 5.qman-portal: failed to
On Fri, Mar 29, 2019 at 9:01 AM wrote:
>
> From: Laurentiu Tudor
>
> ARM SoCs use SMMU so the liodn fixup done in the qman driver is no
> longer making sense and it also breaks the ICID settings inherited
> from u-boot. Do the fixups only for PPC targets.
>
> Signed-off-by: Laurentiu Tudor
>
On 3/29/2019 9:14 PM, Yue Haibing wrote:
From: YueHaibing
Fixes gcc '-Wunused-but-set-variable' warning:
drivers/misc/ocxl/link.c: In function 'xsl_fault_handler':
drivers/misc/ocxl/link.c:187:17: warning: variable 'tid' set but not used
[-Wunused-but-set-variable]
On Fri, Mar 29, 2019 at 9:03 AM wrote:
>
> From: Laurentiu Tudor
>
> Add a one-to-one iommu mapping for bman private data memory (FBPR).
> This is required for BMAN to work without faults behind an iommu.
>
> Signed-off-by: Laurentiu Tudor
> ---
> drivers/soc/fsl/qbman/bman_ccsr.c | 11
No need to add dummy frames when calling trace_hardirqs_on or
trace_hardirqs_off. GCC properly handles empty stacks.
In addition, powerpc doesn't set CONFIG_FRAME_POINTER, therefore
__builtin_return_address(1..) returns NULL at all time. So the
dummy frames are definitely unneeded here.
In the
As syscalls are now handled via a fast entry path, syscall related
actions can be removed from the generic transfer_to_handler path.
Signed-off-by: Christophe Leroy
---
arch/powerpc/kernel/entry_32.S | 19 ---
1 file changed, 19 deletions(-)
diff --git
syscalls are from user only, so we can account time without checking
whether returning to kernel or user as it will only be user.
Signed-off-by: Christophe Leroy
---
arch/powerpc/kernel/entry_32.S | 5 -
1 file changed, 5 deletions(-)
diff --git a/arch/powerpc/kernel/entry_32.S
This patch implements a fast entry for syscalls.
Syscalls don't have to preserve non volatile registers except LR.
This patch then implement a fast entry for syscalls, where
volatile registers get clobbered.
As this entry is dedicated to syscall it always sets MSR_EE
and warns in case MSR_EE
This patch implements a fast entry for syscalls.
Syscalls don't have to preserve non volatile registers except LR.
This patch then implement a fast entry for syscalls, where
volatile registers get clobbered.
As this entry is dedicated to syscall it always sets MSR_EE
and warns in case MSR_EE
[text mostly copied from benh's RFC/WIP]
ppc32 are still doing something rather gothic and wrong on 32-bit
which we stopped doing on 64-bit a while ago.
We have that thing where some handlers "copy" the EE value from the
original stack frame into the new MSR before transferring to the
handler.
EXC_XFER_TEMPLATE() is not called with COPY_EE anymore so
we can get rid of copyee parameters and related COPY_EE and NOCOPY
macros.
Suggested-by: Benjamin Herrenschmidt
[splited out from benh RFC patch]
Signed-off-by: Christophe Leroy
---
arch/powerpc/kernel/head_32.h| 12
All exceptions handlers know when to reenable interrupts, so
it is safer to enter all of them with MSR_EE unset, except
for syscalls.
Suggested-by: Benjamin Herrenschmidt
[splited out from benh RFC patch]
Signed-off-by: Christophe Leroy
---
arch/powerpc/kernel/head_32.S| 68
syscalls are expected to be entered with MSR_EE set. Lets
make it inconditional by forcing MSR_EE on syscalls.
This patch adds EXC_XFER_SYS for that.
Suggested-by: Benjamin Herrenschmidt
[splited out from benh RFC patch]
Signed-off-by: Christophe Leroy
---
arch/powerpc/kernel/head_32.S
Refactor exception entry macros by using the ones defined in head_32.h
Signed-off-by: Christophe Leroy
---
arch/powerpc/kernel/head_32.h | 4 ++
arch/powerpc/kernel/head_40x.S | 88 +-
2 files changed, 6 insertions(+), 86 deletions(-)
diff --git
SPEFloatingPointException() is the only exception handler which 'forgets' to
re-enable interrupts. This patch makes sure it does.
Suggested-by: Benjamin Herrenschmidt
Signed-off-by: Christophe Leroy
---
arch/powerpc/kernel/traps.c | 8
1 file changed, 8 insertions(+)
diff --git
This patch splits NORMAL_EXCEPTION_PROLOG in the same way as in
head_8xx.S and head_32.S and renames it EXCEPTION_PROLOG() as well
to match head_32.h
Signed-off-by: Christophe Leroy
---
arch/powerpc/kernel/head_40x.S | 26 --
1 file changed, 16 insertions(+), 10
This patch adds STACK_FRAME_REGS_MARKER in the stack at exception entry
in order to see interrupts in call traces as below:
[0.013964] Call Trace:
[0.014014] [c0745db0] [c007a9d4] tick_periodic.constprop.5+0xd8/0x104
(unreliable)
[0.014086] [c0745dc0] [c007aa20]
6xx/8xx EXC_XFER_TEMPLATE() macro adds a i##n symbol which is
unused and can be removed.
40x and booke EXC_XFER_TEMPLATE() macros takes msr from the caller
while the 6xx/8xx version uses only MSR_KERNEL as msr value.
This patch modifies the 6xx/8xx version to make it similar to the
40x and booke
EXCEPTION_PROLOG is similar in head_8xx.S and head_32.S
This patch creates head_32.h and moves EXCEPTION_PROLOG macro
into it. It also converts it from a GCC macro to a GAS macro
in order to ease refactorisation with 40x later, since
GAS macros allows the use of #ifdef/#else/#endif inside it.
And
As preparation for using head_32.h for head_40x.S, move
LOAD_MSR_KERNEL() there and use it to load r10 with MSR_KERNEL value.
In the mean time, this patch modifies it so that it takes into account
the size of the passed value to determine if 'li' can be used or if
'lis/ori' is needed instead of
The purpose of this series is to implement a fast syscall entry
on ppc32, as already done on ppc64.
Unlike all other exceptions which can happen at any time and
require to preserve all registers, the syscalls do not
require the preservation of volatile registers (except LR).
Syscall entries can
Unlike said in the comment, r1 is not reused by the critical
exception handler, as it uses a dedicated critirq_ctx stack.
Decrementing r1 early is then unneeded.
Should the above be valid, the code is crap buggy anyway as
r1 gets some intermediate values that would jeopardise the
whole process
On Fri, 2019-03-29 at 22:26 +1100, Michael Ellerman wrote:
>
> From: Diana Craciun
>
> commit ebcd1bfc33c7a90df941df68a6e5d4018c022fba upstream.
>
> Implement the barrier_nospec as a isync;sync instruction sequence.
> The implementation uses the infrastructure built for BOOK3S 64.
>
>
From: YueHaibing
Fixes gcc '-Wunused-but-set-variable' warning:
drivers/misc/ocxl/link.c: In function 'xsl_fault_handler':
drivers/misc/ocxl/link.c:187:17: warning: variable 'tid' set but not used
[-Wunused-but-set-variable]
drivers/misc/ocxl/link.c:187:6: warning: variable 'lpid' set but not
[ Added Peter ]
On Fri, 29 Mar 2019 19:13:55 +1000
Nicholas Piggin wrote:
> Suraj Jitindar Singh's on March 29, 2019 3:20 pm:
> > On Wed, 2019-03-27 at 17:51 +0100, Cédric Le Goater wrote:
> >> On 3/27/19 5:37 PM, Cédric Le Goater wrote:
> >> > On 3/27/19 1:36 PM, Sebastian Andrzej Siewior
Should this one go stable 4.14/4.19 too?
On Fri, 2019-03-29 at 16:00 +0200, laurentiu.tu...@nxp.com wrote:
>
> From: Laurentiu Tudor
>
> Fix issue with the entry indexing in the sg frame cleanup code being
> off-by-1. This problem showed up when doing some basic iperf tests and
> manifested
On Fri, Mar 29, 2019 at 03:51:16PM +0100, Greg KH wrote:
> On Fri, Mar 29, 2019 at 10:25:48PM +1100, Michael Ellerman wrote:
> > -BEGIN PGP SIGNED MESSAGE-
> > Hash: SHA1
> >
> > Hi Greg,
> >
> > Please queue up these powerpc patches for 4.14 if you have no objections.
>
> Some of these
This is a note to let you know that I've just added the patch titled
powerpc/fsl: Fixed warning: orphan section `__btb_flush_fixup'
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch
This is a note to let you know that I've just added the patch titled
powerpc/security: Fix spectre_v2 reporting
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
This is a note to let you know that I've just added the patch titled
powerpc/fsl: Update Spectre v2 reporting
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
This is a note to let you know that I've just added the patch titled
powerpc/fsl: Flush the branch predictor at each kernel entry (64bit)
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the
This is a note to let you know that I've just added the patch titled
powerpc/fsl: Flush the branch predictor at each kernel entry (32 bit)
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of
This is a note to let you know that I've just added the patch titled
powerpc/fsl: Flush branch predictor when entering KVM
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
This is a note to let you know that I've just added the patch titled
powerpc/fsl: Fix the flush of branch predictor.
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
This is a note to let you know that I've just added the patch titled
powerpc/fsl: Enable runtime patching if nospectre_v2 boot arg is used
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of
This is a note to let you know that I've just added the patch titled
powerpc/fsl: Emulate SPRN_BUCSR register
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
This is a note to let you know that I've just added the patch titled
powerpc/fsl: Add nospectre_v2 command line argument
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
This is a note to let you know that I've just added the patch titled
powerpc/fsl: Add macro to flush the branch predictor
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
This is a note to let you know that I've just added the patch titled
powerpc/fsl: Add infrastructure to fixup branch predictor flush
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the
This is a note to let you know that I've just added the patch titled
[PATCH stable v4.14 32/32] powerpc/security: Fix spectre_v2 reporting
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of
This is a note to let you know that I've just added the patch titled
[PATCH stable v4.14 07/32] powerpc64s: Show ori31 availability in
spectre_v1 sysfs file not v2
to the 4.14-stable tree which can be found at:
This is a note to let you know that I've just added the patch titled
[PATCH stable v4.14 04/32] powerpc: Use barrier_nospec in copy_from_user()
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename
This is a note to let you know that I've just added the patch titled
[PATCH stable v4.14 23/32] powerpc/fsl: Emulate SPRN_BUCSR register
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the
This is a note to let you know that I've just added the patch titled
[PATCH stable v4.14 29/32] powerpc/fsl: Update Spectre v2 reporting
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the
This is a note to let you know that I've just added the patch titled
[PATCH stable v4.14 14/32] powerpc/fsl: Sanitize the syscall table for NXP
PowerPC 32 bit platforms
to the 4.14-stable tree which can be found at:
This is a note to let you know that I've just added the patch titled
[PATCH stable v4.14 25/32] powerpc/fsl: Flush the branch predictor at each
kernel entry (64bit)
to the 4.14-stable tree which can be found at:
This is a note to let you know that I've just added the patch titled
[PATCH stable v4.14 26/32] powerpc/fsl: Flush the branch predictor at each
kernel entry (32 bit)
to the 4.14-stable tree which can be found at:
This is a note to let you know that I've just added the patch titled
[PATCH stable v4.14 27/32] powerpc/fsl: Flush branch predictor when
entering KVM
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The
This is a note to let you know that I've just added the patch titled
[PATCH stable v4.14 30/32] powerpc/fsl: Fixed warning: orphan section
`__btb_flush_fixup'
to the 4.14-stable tree which can be found at:
This is a note to let you know that I've just added the patch titled
[PATCH stable v4.14 31/32] powerpc/fsl: Fix the flush of branch predictor.
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename
This is a note to let you know that I've just added the patch titled
[PATCH stable v4.14 22/32] powerpc/fsl: Fix spectre_v2 mitigations reporting
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The
This is a note to let you know that I've just added the patch titled
[PATCH stable v4.14 18/32] powerpc/pseries: Query hypervisor for count
cache flush settings
to the 4.14-stable tree which can be found at:
This is a note to let you know that I've just added the patch titled
[PATCH stable v4.14 19/32] powerpc/powernv: Query firmware for count cache
flush settings
to the 4.14-stable tree which can be found at:
This is a note to let you know that I've just added the patch titled
[PATCH stable v4.14 28/32] powerpc/fsl: Enable runtime patching if
nospectre_v2 boot arg is used
to the 4.14-stable tree which can be found at:
This is a note to let you know that I've just added the patch titled
[PATCH stable v4.14 05/32] powerpc/64: Use barrier_nospec in syscall entry
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename
This is a note to let you know that I've just added the patch titled
[PATCH stable v4.14 20/32] powerpc/fsl: Add infrastructure to fixup branch
predictor flush
to the 4.14-stable tree which can be found at:
This is a note to let you know that I've just added the patch titled
[PATCH stable v4.14 13/32] powerpc/fsl: Add barrier_nospec implementation
for NXP PowerPC Book3E
to the 4.14-stable tree which can be found at:
This is a note to let you know that I've just added the patch titled
[PATCH stable v4.14 15/32] powerpc/asm: Add a patch_site macro & helpers
for patching instructions
to the 4.14-stable tree which can be found at:
This is a note to let you know that I've just added the patch titled
[PATCH stable v4.14 02/32] powerpc/64s: Patch barrier_nospec in modules
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of
This is a note to let you know that I've just added the patch titled
[PATCH stable v4.14 06/32] powerpc/64s: Enhance the information in
cpu_show_spectre_v1()
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
This is a note to let you know that I've just added the patch titled
[PATCH stable v4.14 03/32] powerpc/64s: Enable barrier_nospec based on
firmware settings
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
This is a note to let you know that I've just added the patch titled
[PATCH stable v4.14 17/32] powerpc/64s: Add support for software count
cache flush
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The
This is a note to let you know that I've just added the patch titled
[PATCH stable v4.14 01/32] powerpc/64s: Add support for ori barrier_nospec
patching
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The
This is a note to let you know that I've just added the patch titled
[PATCH stable v4.14 24/32] powerpc/fsl: Add nospectre_v2 command line
argument
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The
This is a note to let you know that I've just added the patch titled
[PATCH stable v4.14 21/32] powerpc/fsl: Add macro to flush the branch
predictor
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The
This is a note to let you know that I've just added the patch titled
[PATCH stable v4.14 16/32] powerpc/64s: Add new security feature flags for
count cache flush
to the 4.14-stable tree which can be found at:
This is a note to let you know that I've just added the patch titled
[PATCH stable v4.14 09/32] powerpc/64: Make stf barrier PPC_BOOK3S_64
specific.
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The
This is a note to let you know that I've just added the patch titled
[PATCH stable v4.14 12/32] powerpc/64: Make meltdown reporting Book3S 64
specific
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The
This is a note to let you know that I've just added the patch titled
[PATCH stable v4.14 08/32] powerpc/64: Disable the speculation barrier from
the command line
to the 4.14-stable tree which can be found at:
This is a note to let you know that I've just added the patch titled
[PATCH stable v4.14 11/32] powerpc/64: Call setup_barrier_nospec() from
setup_arch()
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
This is a note to let you know that I've just added the patch titled
[PATCH stable v4.14 10/32] powerpc/64: Add CONFIG_PPC_BARRIER_NOSPEC
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the
On Fri, Mar 29, 2019 at 10:25:48PM +1100, Michael Ellerman wrote:
> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA1
>
> Hi Greg,
>
> Please queue up these powerpc patches for 4.14 if you have no objections.
Some of these also need to go to 4.19, right? Want me to add them
there, or are you
On 29/03/2019 14:00, laurentiu.tu...@nxp.com wrote:
From: Laurentiu Tudor
Add a one-to-one iommu mapping for bman private data memory (FBPR).
This is required for BMAN to work without faults behind an iommu.
Signed-off-by: Laurentiu Tudor
---
drivers/soc/fsl/qbman/bman_ccsr.c | 11
From: Laurentiu Tudor
The driver relies on the no longer valid assumption that dma addresses
(iovas) are identical to physical addressees and uses phys_to_virt() to
make iova -> vaddr conversions. Fix this also for scatter-gather frames
using the iova -> phys conversion function added in the
From: Laurentiu Tudor
Add a couple of new APIs to check the probing status of the required
cpu bound qman and bman portals:
'int bman_portals_probed()' and 'int qman_portals_probed()'.
They return the following values.
* 1 if qman/bman portals were all probed correctly
* 0 if qman/bman
From: Laurentiu Tudor
Add a one-to-one iommu mapping for bman private data memory (FBPR).
This is required for BMAN to work without faults behind an iommu.
Signed-off-by: Laurentiu Tudor
---
drivers/soc/fsl/qbman/bman_ccsr.c | 11 +++
1 file changed, 11 insertions(+)
diff --git
From: Laurentiu Tudor
ARM SoCs use SMMU so the liodn fixup done in the qman driver is no
longer making sense and it also breaks the ICID settings inherited
from u-boot. Do the fixups only for PPC targets.
Signed-off-by: Laurentiu Tudor
---
drivers/soc/fsl/qbman/qman_ccsr.c | 2 ++
1 file
From: Laurentiu Tudor
Add a one-to-one iommu mapping for qman private data memory areas
(FQD and PFDR). This is required for QMAN to work without faults
behind an iommu.
Signed-off-by: Laurentiu Tudor
---
drivers/soc/fsl/qbman/qman_ccsr.c | 15 +++
1 file changed, 15 insertions(+)
From: Laurentiu Tudor
Enabling SMMU altered the order of device probing causing the dpaa1
ethernet driver to get probed before qbman and causing a boot crash.
Add predictability in the probing order by deferring the ethernet
driver probe after qbman and portals by using the recently introduced
From: Laurentiu Tudor
Prior to calling iommu_map()/iommu_unmap() page align the size or
failures such as below could happen:
iommu: unaligned: iova 0x... pa 0x... size 0x4000 min_pagesz 0x1
qman_portal 5.qman-portal: failed to iommu_map() -22
Seen when booted a kernel compiled with
From: Laurentiu Tudor
Add an API that retrieves the 'struct device' that the specified fman
port probed against. The new API will be used in a subsequent iommu
enablement related patch.
Signed-off-by: Laurentiu Tudor
Acked-by: Madalin Bucur
---
drivers/net/ethernet/freescale/fman/fman_port.c
From: Laurentiu Tudor
During probing, FMAN is reset thus losing all its register
settings. Backup port ICID registers before reset and restore
them after, similarly to how it's done on powerpc / PAMU based
platforms.
This also has the side effect of disabling the old code path
(liodn
From: Laurentiu Tudor
The dma transactions initiator is the rx fman port so that's the device
that the dma mappings should be done. Previously the mappings were done
through the MAC device which makes no sense because it's neither dma-able
nor connected in any way to smmu.
Signed-off-by:
From: Laurentiu Tudor
This patch series contains several fixes in preparation for SMMU
support on NXP LS1043A and LS1046A chips. Once these get picked up,
I'll submit the actual SMMU enablement patches consisting in the
required device tree changes.
This patch series contains only part of the
From: Laurentiu Tudor
Fix issue with the entry indexing in the sg frame cleanup code being
off-by-1. This problem showed up when doing some basic iperf tests and
manifested in traffic coming to a halt.
Signed-off-by: Laurentiu Tudor
Acked-by: Madalin Bucur
---
From: Laurentiu Tudor
The driver relies on the no longer valid assumption that dma addresses
(iovas) are identical to physical addressees and uses phys_to_virt() to
make iova -> vaddr conversions. Fix this by adding a function that does
proper iova -> phys conversions using the iommu api and
From: Laurentiu Tudor
Add a one-to-one iommu mapping for qman portal CENA register area.
This is required for QMAN stashing to work without faults behind
an iommu.
Signed-off-by: Laurentiu Tudor
---
drivers/soc/fsl/qbman/qman_portal.c | 17 +
1 file changed, 17 insertions(+)
(Cross-posted in case there are generic issues; please trim if
discussion wanders into single-architecture details.)
I was working on some scaling code that can benefit from 64x64->128-bit
multiplies. GCC supports an __int128 type on processors with hardware
support (including z/Arch and
commit 92edf8df0ff2ae86cc632eeca0e651fd8431d40d upstream.
When I updated the spectre_v2 reporting to handle software count cache
flush I got the logic wrong when there's no software count cache
enabled at all.
The result is that on systems with the software count cache flush
disabled we print:
From: Christophe Leroy
commit 27da80719ef132cf8c80eb406d5aeb37dddf78cc upstream.
The commit identified below adds MC_BTB_FLUSH macro only when
CONFIG_PPC_FSL_BOOK3E is defined. This results in the following error
on some configs (seen several times with kisskb randconfig_defconfig)
From: Diana Craciun
commit 039daac5526932ec731e4499613018d263af8b3e upstream.
Fixed the following build warning:
powerpc-linux-gnu-ld: warning: orphan section `__btb_flush_fixup' from
`arch/powerpc/kernel/head_44x.o' being placed in section
`__btb_flush_fixup'.
Signed-off-by: Diana Craciun
From: Diana Craciun
commit dfa88658fb0583abb92e062c7a9cd5a5b94f2a46 upstream.
Report branch predictor state flush as a mitigation for
Spectre variant 2.
Signed-off-by: Diana Craciun
Signed-off-by: Michael Ellerman
---
arch/powerpc/kernel/security.c | 5 -
1 file changed, 4
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