On 3/29/2018 12:29 PM, Arnd Bergmann wrote:
> On Thu, Mar 29, 2018 at 3:56 PM, Sinan Kaya <okaya@xxxxxxxxxxxxxx> wrote:
>> On 3/28/2018 11:55 AM, David Miller wrote:
>>> From: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
>>> Date: Thu, 29 Mar 2018 02:13:16 +1100
>>>
>>>> Let's fix all archs, it's way easier than fixing all drivers. Half of
>>>> the archs are unused or dead anyway.
>>>
>>> Agreed.
>>>
>>
>> I pinged most of the maintainers yesterday.
>> Which arches do we care about these days?
>> I have not been paying attention any other architecture besides arm64.
>>
>> arch status detail
>> ------ ------------- ------------------------------------
>> alpha question sent
Thanks for the detailed analysis.
>
> I'm guessing alpha has problems
>
> extern inline u32 readl(const volatile void __iomem *addr)
> {
> u32 ret = __raw_readl(addr);
> mb();
> return ret;
> }
> extern inline void writel(u32 b, volatile void __iomem *addr)
> {
> __raw_writel(b, addr);
> mb();
> }
Looks like a problem to me too. I'll start a thread with the alpha
people and CC you.
>
> There is a barrier in writel /after/ the acess but not before.
>
This is the consolidated list. I also heart back from m68k and corrected
contacts for arc and h8300.
arch status detail
------ ------------- ------------------------------------
alpha question sent Arnd: alpha has problems
arc question sent Vineet.Gupta1@xxxxxxxxxxxx says he'll get to this
in the next few days
arm no issues
arm64 no issues
c6x no issues no PCI
h8300 no issues no PCI: ysato@xxxxxxxxxxxxxxxxxxxx will fix it.
hexagon no issues no PCI
ia64 no issues confirmed by Tony Luck
m68k no issues geert@xxxxxxxxxxxxxx says no problem
metag no issues arnd: removed
microblaze question sent arnd: some mips platforms have problems
mips question sent arnd: some mips platforms have problems
nds32 question sent
nios2 no issues no PCI
openrisc no issues shorne@xxxxxxxxx says should no issues
parisc no issues grantgrundler@xxxxxxxxx says most probably no problem
but still looking
powerpc no issues
riscv no issues arnd: riscv should be fine
s390 no issues arnd: Pretty sure this is also fine
sh question sent
sparc no issues davem@xxxxxxxxxxxxx says always strongly ordered
unicore32 question sent resent to gxt@xxxxxxxxxx
x86 no issues
x86_64 no issues
>
> Arnd
>
--
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.
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