* Patch "MIPS: kernel: cps-vec: Replace mips32r2 ISA level with mips64r2" has been added to the 4.1-stable tree
@ 2015-08-06 23:30 gregkh
2015-08-06 23:38 ` Paul Burton
0 siblings, 1 reply; 3+ messages in thread
From: gregkh @ 2015-08-06 23:30 UTC (permalink / raw)
To: markos.chandras, gregkh, paul.burton, ralf; +Cc: stable, stable-commits
This is a note to let you know that I've just added the patch titled
MIPS: kernel: cps-vec: Replace mips32r2 ISA level with mips64r2
to the 4.1-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:
mips-kernel-cps-vec-replace-mips32r2-isa-level-with-mips64r2.patch
and it can be found in the queue-4.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From 977e043d5ea1270ce985e4c165724ff91dc3c3e2 Mon Sep 17 00:00:00 2001
From: Markos Chandras <markos.chandras@imgtec.com>
Date: Wed, 1 Jul 2015 09:13:30 +0100
Subject: MIPS: kernel: cps-vec: Replace mips32r2 ISA level with mips64r2
From: Markos Chandras <markos.chandras@imgtec.com>
commit 977e043d5ea1270ce985e4c165724ff91dc3c3e2 upstream.
mips32r2 is a subset of mips64r2, so we replace mips32r2 with mips64r2
in preparation for 64-bit CPS support.
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10588/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/mips/kernel/cps-vec.S | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/arch/mips/kernel/cps-vec.S
+++ b/arch/mips/kernel/cps-vec.S
@@ -229,7 +229,7 @@ LEAF(mips_cps_core_init)
nop
.set push
- .set mips32r2
+ .set mips64r2
.set mt
/* Only allow 1 TC per VPE to execute... */
@@ -346,7 +346,7 @@ LEAF(mips_cps_boot_vpes)
nop
.set push
- .set mips32r2
+ .set mips64r2
.set mt
1: /* Enter VPE configuration state */
Patches currently in stable-queue which might be from markos.chandras@imgtec.com are
queue-4.1/mips-kernel-cps-vec-replace-mips32r2-isa-level-with-mips64r2.patch
queue-4.1/mips-kernel-cps-vec-use-ta0-ta3-pseudo-registers-for-64-bit.patch
queue-4.1/revert-mips-kconfig-disable-smp-cps-for-64-bit.patch
queue-4.1/mips-require-o32-fp64-support-for-mips64-with-o32-compat.patch
queue-4.1/mips-fpu.h-allow-64-bit-fpu-on-a-64-bit-mips-r6-cpu.patch
queue-4.1/mips-kernel-cps-vec-replace-la-macro-with-ptr_la.patch
queue-4.1/mips-c-r4k-fix-cache-flushing-for-mt-cores.patch
queue-4.1/mips-kernel-smp-cps-fix-64-bit-compatibility-errors-due-to-pointer-casting.patch
queue-4.1/mips-kernel-cps-vec-replace-kseg0-with-ckseg0.patch
queue-4.1/mips-fix-erroneous-jr-emulation-for-mips-r6.patch
queue-4.1/mips-cps-vec-use-macros-for-various-arithmetics-and-memory-operations.patch
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: Patch "MIPS: kernel: cps-vec: Replace mips32r2 ISA level with mips64r2" has been added to the 4.1-stable tree
2015-08-06 23:30 Patch "MIPS: kernel: cps-vec: Replace mips32r2 ISA level with mips64r2" has been added to the 4.1-stable tree gregkh
@ 2015-08-06 23:38 ` Paul Burton
2015-08-07 1:32 ` Greg KH
0 siblings, 1 reply; 3+ messages in thread
From: Paul Burton @ 2015-08-06 23:38 UTC (permalink / raw)
To: gregkh, stable; +Cc: markos.chandras, ralf, stable-commits
On Thu, Aug 06, 2015 at 04:30:01PM -0700, gregkh@linuxfoundation.org wrote:
>
> This is a note to let you know that I've just added the patch titled
>
> MIPS: kernel: cps-vec: Replace mips32r2 ISA level with mips64r2
>
> to the 4.1-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:
> mips-kernel-cps-vec-replace-mips32r2-isa-level-with-mips64r2.patch
> and it can be found in the queue-4.1 subdirectory.
>
> If you, or anyone else, feels it should not be added to the stable tree,
> please let <stable@vger.kernel.org> know about it.
Hi Greg,
This patch breaks the boot of SMP kernels on Imagination's current
MIPS32 systems. This & the other MIPS64 related patches that were
submitted as part of the same series do not improve things for any CPUs
that Linux supports even as of the v4.2 cycle, so I do not believe they
should have been marked for backport.
So please either drop this patch (& preferrably the other MIPS64 CPS SMP
ones too) or also backport the series I've just submitted:
http://marc.info/?l=linux-mips&m=143881461431570&w=2
My preference would be for not backporting any of these:
> queue-4.1/mips-kernel-cps-vec-replace-mips32r2-isa-level-with-mips64r2.patch
> queue-4.1/mips-kernel-cps-vec-use-ta0-ta3-pseudo-registers-for-64-bit.patch
> queue-4.1/revert-mips-kconfig-disable-smp-cps-for-64-bit.patch
> queue-4.1/mips-kernel-cps-vec-replace-la-macro-with-ptr_la.patch
> queue-4.1/mips-kernel-smp-cps-fix-64-bit-compatibility-errors-due-to-pointer-casting.patch
> queue-4.1/mips-kernel-cps-vec-replace-kseg0-with-ckseg0.patch
> queue-4.1/mips-cps-vec-use-macros-for-various-arithmetics-and-memory-operations.patch
Thanks,
Paul
>
> From 977e043d5ea1270ce985e4c165724ff91dc3c3e2 Mon Sep 17 00:00:00 2001
> From: Markos Chandras <markos.chandras@imgtec.com>
> Date: Wed, 1 Jul 2015 09:13:30 +0100
> Subject: MIPS: kernel: cps-vec: Replace mips32r2 ISA level with mips64r2
>
> From: Markos Chandras <markos.chandras@imgtec.com>
>
> commit 977e043d5ea1270ce985e4c165724ff91dc3c3e2 upstream.
>
> mips32r2 is a subset of mips64r2, so we replace mips32r2 with mips64r2
> in preparation for 64-bit CPS support.
>
> Reviewed-by: Paul Burton <paul.burton@imgtec.com>
> Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
> Cc: linux-mips@linux-mips.org
> Patchwork: https://patchwork.linux-mips.org/patch/10588/
> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
>
> ---
> arch/mips/kernel/cps-vec.S | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> --- a/arch/mips/kernel/cps-vec.S
> +++ b/arch/mips/kernel/cps-vec.S
> @@ -229,7 +229,7 @@ LEAF(mips_cps_core_init)
> nop
>
> .set push
> - .set mips32r2
> + .set mips64r2
> .set mt
>
> /* Only allow 1 TC per VPE to execute... */
> @@ -346,7 +346,7 @@ LEAF(mips_cps_boot_vpes)
> nop
>
> .set push
> - .set mips32r2
> + .set mips64r2
> .set mt
>
> 1: /* Enter VPE configuration state */
>
>
> Patches currently in stable-queue which might be from markos.chandras@imgtec.com are
>
> queue-4.1/mips-kernel-cps-vec-replace-mips32r2-isa-level-with-mips64r2.patch
> queue-4.1/mips-kernel-cps-vec-use-ta0-ta3-pseudo-registers-for-64-bit.patch
> queue-4.1/revert-mips-kconfig-disable-smp-cps-for-64-bit.patch
> queue-4.1/mips-require-o32-fp64-support-for-mips64-with-o32-compat.patch
> queue-4.1/mips-fpu.h-allow-64-bit-fpu-on-a-64-bit-mips-r6-cpu.patch
> queue-4.1/mips-kernel-cps-vec-replace-la-macro-with-ptr_la.patch
> queue-4.1/mips-c-r4k-fix-cache-flushing-for-mt-cores.patch
> queue-4.1/mips-kernel-smp-cps-fix-64-bit-compatibility-errors-due-to-pointer-casting.patch
> queue-4.1/mips-kernel-cps-vec-replace-kseg0-with-ckseg0.patch
> queue-4.1/mips-fix-erroneous-jr-emulation-for-mips-r6.patch
> queue-4.1/mips-cps-vec-use-macros-for-various-arithmetics-and-memory-operations.patch
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: Patch "MIPS: kernel: cps-vec: Replace mips32r2 ISA level with mips64r2" has been added to the 4.1-stable tree
2015-08-06 23:38 ` Paul Burton
@ 2015-08-07 1:32 ` Greg KH
0 siblings, 0 replies; 3+ messages in thread
From: Greg KH @ 2015-08-07 1:32 UTC (permalink / raw)
To: Paul Burton; +Cc: stable, markos.chandras, ralf, stable-commits
On Thu, Aug 06, 2015 at 04:38:15PM -0700, Paul Burton wrote:
> On Thu, Aug 06, 2015 at 04:30:01PM -0700, gregkh@linuxfoundation.org wrote:
> >
> > This is a note to let you know that I've just added the patch titled
> >
> > MIPS: kernel: cps-vec: Replace mips32r2 ISA level with mips64r2
> >
> > to the 4.1-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:
> > mips-kernel-cps-vec-replace-mips32r2-isa-level-with-mips64r2.patch
> > and it can be found in the queue-4.1 subdirectory.
> >
> > If you, or anyone else, feels it should not be added to the stable tree,
> > please let <stable@vger.kernel.org> know about it.
>
> Hi Greg,
>
> This patch breaks the boot of SMP kernels on Imagination's current
> MIPS32 systems. This & the other MIPS64 related patches that were
> submitted as part of the same series do not improve things for any CPUs
> that Linux supports even as of the v4.2 cycle, so I do not believe they
> should have been marked for backport.
>
> So please either drop this patch (& preferrably the other MIPS64 CPS SMP
> ones too) or also backport the series I've just submitted:
>
> http://marc.info/?l=linux-mips&m=143881461431570&w=2
>
> My preference would be for not backporting any of these:
>
> > queue-4.1/mips-kernel-cps-vec-replace-mips32r2-isa-level-with-mips64r2.patch
> > queue-4.1/mips-kernel-cps-vec-use-ta0-ta3-pseudo-registers-for-64-bit.patch
> > queue-4.1/revert-mips-kconfig-disable-smp-cps-for-64-bit.patch
> > queue-4.1/mips-kernel-cps-vec-replace-la-macro-with-ptr_la.patch
> > queue-4.1/mips-kernel-smp-cps-fix-64-bit-compatibility-errors-due-to-pointer-casting.patch
> > queue-4.1/mips-kernel-cps-vec-replace-kseg0-with-ckseg0.patch
> > queue-4.1/mips-cps-vec-use-macros-for-various-arithmetics-and-memory-operations.patch
Thanks, I'll go drop all of these from the queue.
greg k-h
^ permalink raw reply [flat|nested] 3+ messages in thread
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2015-08-06 23:30 Patch "MIPS: kernel: cps-vec: Replace mips32r2 ISA level with mips64r2" has been added to the 4.1-stable tree gregkh
2015-08-06 23:38 ` Paul Burton
2015-08-07 1:32 ` Greg KH
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