Re: [PATCH] ARM: remove ARM710 specific assembler code

2014-05-22 Thread Tony Lindgren
* Tony Lindgren [140522 11:41]: > * Arnd Bergmann [140520 13:10]: > > On Tuesday 20 May 2014 09:05:13 Tony Lindgren wrote: > > > * Arnd Bergmann [140519 04:27]: > > > > On Saturday 17 May 2014 10:56:02 Catalin Marinas wrote: > > > > > > > > For the case of ARM710T, I think the last remaining us

Re: [PATCH] ARM: remove ARM710 specific assembler code

2014-05-22 Thread Tony Lindgren
* Arnd Bergmann [140520 13:10]: > On Tuesday 20 May 2014 09:05:13 Tony Lindgren wrote: > > * Arnd Bergmann [140519 04:27]: > > > On Saturday 17 May 2014 10:56:02 Catalin Marinas wrote: > > > > > > For the case of ARM710T, I think the last remaining user that can be > > > configured is mach-integ

Re: [PATCH] ARM: remove ARM710 specific assembler code

2014-05-20 Thread Arnd Bergmann
On Tuesday 20 May 2014 09:05:13 Tony Lindgren wrote: > * Arnd Bergmann [140519 04:27]: > > On Saturday 17 May 2014 10:56:02 Catalin Marinas wrote: > > > > For the case of ARM710T, I think the last remaining user that can be > > configured is mach-integrator, but I don't know if anybody even has t

Re: [PATCH] ARM: remove ARM710 specific assembler code

2014-05-20 Thread Catalin Marinas
On Tue, May 20, 2014 at 04:48:19PM +0100, One Thousand Gnomes wrote: > > old features. Let's say in 10 years time we remove everything ARMv4, > > another 10 years ARMv5 and so on. We could make these milestones shorter > > but it really depends on what people use, we should not force them out > > o

Re: [PATCH] ARM: remove ARM710 specific assembler code

2014-05-20 Thread Tony Lindgren
* Arnd Bergmann [140519 04:27]: > On Saturday 17 May 2014 10:56:02 Catalin Marinas wrote: > > For the case of ARM710T, I think the last remaining user that can be > configured is mach-integrator, but I don't know if anybody even has that > CPU tile, or wants to keep using it. If Russell and Linus

Re: [PATCH] ARM: remove ARM710 specific assembler code

2014-05-20 Thread One Thousand Gnomes
> old features. Let's say in 10 years time we remove everything ARMv4, > another 10 years ARMv5 and so on. We could make these milestones shorter > but it really depends on what people use, we should not force them out > of the kernel if still in use. Why do you care ? Worry about it at the point

Re: [PATCH] ARM: remove ARM710 specific assembler code

2014-05-19 Thread Arnd Bergmann
On Saturday 17 May 2014 10:56:02 Catalin Marinas wrote: > > The difference between what you're proposing and what happened to ARMv3 > > is that ARMv3 was broken for quite some time (we read from some of the > > CP15 registers which are read-only in ARMv3) and no one ever raised a > > problem with t

Re: [PATCH] ARM: remove ARM710 specific assembler code

2014-05-19 Thread Catalin Marinas
On Sat, May 17, 2014 at 11:26:38AM +0100, Russell King - ARM Linux wrote: > On Sat, May 17, 2014 at 10:56:02AM +0100, Catalin Marinas wrote: > > > The difference between what you're proposing and what happened to ARMv3 > > > is that ARMv3 was broken for quite some time (we read from some of the > >

Re: [PATCH] ARM: remove ARM710 specific assembler code

2014-05-17 Thread Russell King - ARM Linux
On Sat, May 17, 2014 at 10:56:02AM +0100, Catalin Marinas wrote: > > The difference between what you're proposing and what happened to ARMv3 > > is that ARMv3 was broken for quite some time (we read from some of the > > CP15 registers which are read-only in ARMv3) and no one ever raised a > > probl

Re: [PATCH] ARM: remove ARM710 specific assembler code

2014-05-17 Thread Catalin Marinas
On 17 May 2014, at 10:46, Russell King - ARM Linux wrote: > On Sat, May 17, 2014 at 10:23:37AM +0100, Catalin Marinas wrote: >> On Fri, May 16, 2014 at 01:55:46PM +0100, Russell King - ARM Linux wrote: >>> There was a CPU called the ARM710, it was ARMv3 and it had no Thumb support. >>> >>> There

Re: [PATCH] ARM: remove ARM710 specific assembler code

2014-05-17 Thread Russell King - ARM Linux
On Sat, May 17, 2014 at 10:23:37AM +0100, Catalin Marinas wrote: > On Fri, May 16, 2014 at 01:55:46PM +0100, Russell King - ARM Linux wrote: > > There was a CPU called the ARM710, it was ARMv3 and it had no Thumb support. > > > > There is also a CPU called the ARM710T, which is ARMv4 and has Thumb

Re: [PATCH] ARM: remove ARM710 specific assembler code

2014-05-17 Thread Catalin Marinas
On Fri, May 16, 2014 at 01:55:46PM +0100, Russell King - ARM Linux wrote: > There was a CPU called the ARM710, it was ARMv3 and it had no Thumb support. > > There is also a CPU called the ARM710T, which is ARMv4 and has Thumb support. > > These are two completely different CPUs, the former was re

Re: [PATCH] ARM: remove ARM710 specific assembler code

2014-05-16 Thread Paul Bolle
On Fri, 2014-05-16 at 13:55 +0100, Russell King - ARM Linux wrote: > There was a CPU called the ARM710, it was ARMv3 and it had no Thumb support. > > There is also a CPU called the ARM710T, which is ARMv4 and has Thumb support. > > These are two completely different CPUs, the former was removed a

Re: [PATCH] ARM: remove ARM710 specific assembler code

2014-05-16 Thread Russell King - ARM Linux
On Fri, May 16, 2014 at 11:29:58AM +0200, Paul Bolle wrote: > Support for ARM710 CPUs was removed in v3.5. But a few lines of ARM710 > specific assembler code were left in the tree. Remove these too. > > Signed-off-by: Paul Bolle > --- > This minor cleanup was suggested by Arnd. This patch is mos

[PATCH] ARM: remove ARM710 specific assembler code

2014-05-16 Thread Paul Bolle
Support for ARM710 CPUs was removed in v3.5. But a few lines of ARM710 specific assembler code were left in the tree. Remove these too. Signed-off-by: Paul Bolle --- This minor cleanup was suggested by Arnd. This patch is mostly guesswork, as I already told Arnd, since I have never touched ARM as