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Re: [RFC] asm-generic/pci_iomap.h: make custom PCI BAR requirements explicit

Started by"Luis R. Rodriguez" <mcgrof@suse.com>
First post2015-10-03 01:20 +0200
Last post2015-10-05 19:00 +0200
Articles 3 — 2 participants

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  Re: [RFC] asm-generic/pci_iomap.h: make custom PCI BAR requirements  explicit "Luis R. Rodriguez" <mcgrof@suse.com> - 2015-10-03 01:20 +0200
    Re: [RFC] asm-generic/pci_iomap.h: make custom PCI BAR requirements  explicit Randy Dunlap <rdunlap@infradead.org> - 2015-10-04 02:20 +0200
      Re: [RFC] asm-generic/pci_iomap.h: make custom PCI BAR requirements  explicit "Luis R. Rodriguez" <mcgrof@suse.com> - 2015-10-05 19:00 +0200

#1238700 — Re: [RFC] asm-generic/pci_iomap.h: make custom PCI BAR requirements explicit

From"Luis R. Rodriguez" <mcgrof@suse.com>
Date2015-10-03 01:20 +0200
SubjectRe: [RFC] asm-generic/pci_iomap.h: make custom PCI BAR requirements explicit
Message-ID<qfhMm-10f-5@gated-at.bofh.it>
On Fri, Aug 28, 2015 at 07:13:08PM -0700, Randy Dunlap wrote:
> On 08/28/15 17:17, Luis R. Rodriguez wrote:
> > 
> >  arch/s390/Kconfig                 |  8 +++++
> >  arch/s390/include/asm/io.h        | 11 -------
> >  arch/s390/include/asm/pci.h       |  2 --
> >  arch/s390/include/asm/pci_iomap.h | 33 +++++++++++++++++++++
> >  arch/s390/pci/pci.c               |  2 ++
> >  include/asm-generic/io.h          | 12 --------
> >  include/asm-generic/iomap.h       | 10 -------
> >  include/asm-generic/pci_iomap.h   | 62 +++++++++++++++++++++++++++++++++++----
> >  lib/Kconfig                       |  1 +
> >  lib/pci_iomap.c                   |  5 ++++
> >  10 files changed, 105 insertions(+), 41 deletions(-)
> >  create mode 100644 arch/s390/include/asm/pci_iomap.h
> > 
> > diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
> > index 1d57000b1b24..1217b7db4265 100644
> > --- a/arch/s390/Kconfig
> > +++ b/arch/s390/Kconfig
> > @@ -614,6 +614,14 @@ endif	# PCI
> >  config PCI_DOMAINS
> >  	def_bool PCI
> >  
> > +config ARCH_PCI_NON_DISJUNCTIVE
> > +	def_bool PCI
> > +	help
> > +	  On the S390 architecture PCI BAR spaces are not disjunctive, as such
> 
> 	are not disjoint?  may be overlapping?
> 
> > +	  the PCI bar is required on a series of otherwise asm generic PCI
> > +	  routines, as such S390 requires itw own implemention for these
> 
> 	                                  its own implementation

Thanks, I've re-written this as:

mcgrof@ergon ~/linux-next (git::(no branch, rebasing 20150805-pend-all))$ git diff
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index f4725d1af438..8ba5826ed13b 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -618,10 +618,10 @@ config PCI_DOMAINS
 config ARCH_PCI_NON_DISJUNCTIVE
        def_bool PCI
        help
-         On the S390 architecture PCI BAR spaces are not disjunctive, as such
-         the PCI bar is required on a series of otherwise asm generic PCI
-         routines, as such S390 requires itw own implemention for these
-         routines.
+         On the S390 architecture PCI BAR spaces may overlap with each other,
+         because of this the PCI bar is required on a series of otherwise asm
+         generic PCI routines and this in turn requires S390 to provide its
+         own implementation for these routines.
 
 config HAS_IOMEM
        def_bool PCI
> 

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#1239026

FromRandy Dunlap <rdunlap@infradead.org>
Date2015-10-04 02:20 +0200
Message-ID<qfFbX-PH-11@gated-at.bofh.it>
In reply to#1238700
On 10/02/15 16:17, Luis R. Rodriguez wrote:
> On Fri, Aug 28, 2015 at 07:13:08PM -0700, Randy Dunlap wrote:
>> On 08/28/15 17:17, Luis R. Rodriguez wrote:
>>>
>>>  arch/s390/Kconfig                 |  8 +++++
>>>  arch/s390/include/asm/io.h        | 11 -------
>>>  arch/s390/include/asm/pci.h       |  2 --
>>>  arch/s390/include/asm/pci_iomap.h | 33 +++++++++++++++++++++
>>>  arch/s390/pci/pci.c               |  2 ++
>>>  include/asm-generic/io.h          | 12 --------
>>>  include/asm-generic/iomap.h       | 10 -------
>>>  include/asm-generic/pci_iomap.h   | 62 +++++++++++++++++++++++++++++++++++----
>>>  lib/Kconfig                       |  1 +
>>>  lib/pci_iomap.c                   |  5 ++++
>>>  10 files changed, 105 insertions(+), 41 deletions(-)
>>>  create mode 100644 arch/s390/include/asm/pci_iomap.h
>>>
>>> diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
>>> index 1d57000b1b24..1217b7db4265 100644
>>> --- a/arch/s390/Kconfig
>>> +++ b/arch/s390/Kconfig
>>> @@ -614,6 +614,14 @@ endif	# PCI
>>>  config PCI_DOMAINS
>>>  	def_bool PCI
>>>  
>>> +config ARCH_PCI_NON_DISJUNCTIVE
>>> +	def_bool PCI
>>> +	help
>>> +	  On the S390 architecture PCI BAR spaces are not disjunctive, as such
>>
>> 	are not disjoint?  may be overlapping?
>>
>>> +	  the PCI bar is required on a series of otherwise asm generic PCI
>>> +	  routines, as such S390 requires itw own implemention for these
>>
>> 	                                  its own implementation
> 
> Thanks, I've re-written this as:
> 
> mcgrof@ergon ~/linux-next (git::(no branch, rebasing 20150805-pend-all))$ git diff
> diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
> index f4725d1af438..8ba5826ed13b 100644
> --- a/arch/s390/Kconfig
> +++ b/arch/s390/Kconfig
> @@ -618,10 +618,10 @@ config PCI_DOMAINS
>  config ARCH_PCI_NON_DISJUNCTIVE
>         def_bool PCI
>         help
> -         On the S390 architecture PCI BAR spaces are not disjunctive, as such
> -         the PCI bar is required on a series of otherwise asm generic PCI
> -         routines, as such S390 requires itw own implemention for these
> -         routines.
> +         On the S390 architecture PCI BAR spaces may overlap with each other,

That "other," should not end with a comma.  Either use a semi-colon or use a
period and begin the next sentence with Because.

> +         because of this the PCI bar is required on a series of otherwise asm
> +         generic PCI routines and this in turn requires S390 to provide its
> +         own implementation for these routines.
>  
>  config HAS_IOMEM
>         def_bool PCI
>>


-- 
~Randy
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#1239745

From"Luis R. Rodriguez" <mcgrof@suse.com>
Date2015-10-05 19:00 +0200
Message-ID<qghhf-4Jy-1@gated-at.bofh.it>
In reply to#1239026
On Sat, Oct 03, 2015 at 05:14:20PM -0700, Randy Dunlap wrote:
> On 10/02/15 16:17, Luis R. Rodriguez wrote:
> > On Fri, Aug 28, 2015 at 07:13:08PM -0700, Randy Dunlap wrote:
> >> On 08/28/15 17:17, Luis R. Rodriguez wrote:
> >>>
> >>>  arch/s390/Kconfig                 |  8 +++++
> >>>  arch/s390/include/asm/io.h        | 11 -------
> >>>  arch/s390/include/asm/pci.h       |  2 --
> >>>  arch/s390/include/asm/pci_iomap.h | 33 +++++++++++++++++++++
> >>>  arch/s390/pci/pci.c               |  2 ++
> >>>  include/asm-generic/io.h          | 12 --------
> >>>  include/asm-generic/iomap.h       | 10 -------
> >>>  include/asm-generic/pci_iomap.h   | 62 +++++++++++++++++++++++++++++++++++----
> >>>  lib/Kconfig                       |  1 +
> >>>  lib/pci_iomap.c                   |  5 ++++
> >>>  10 files changed, 105 insertions(+), 41 deletions(-)
> >>>  create mode 100644 arch/s390/include/asm/pci_iomap.h
> >>>
> >>> diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
> >>> index 1d57000b1b24..1217b7db4265 100644
> >>> --- a/arch/s390/Kconfig
> >>> +++ b/arch/s390/Kconfig
> >>> @@ -614,6 +614,14 @@ endif	# PCI
> >>>  config PCI_DOMAINS
> >>>  	def_bool PCI
> >>>  
> >>> +config ARCH_PCI_NON_DISJUNCTIVE
> >>> +	def_bool PCI
> >>> +	help
> >>> +	  On the S390 architecture PCI BAR spaces are not disjunctive, as such
> >>
> >> 	are not disjoint?  may be overlapping?
> >>
> >>> +	  the PCI bar is required on a series of otherwise asm generic PCI
> >>> +	  routines, as such S390 requires itw own implemention for these
> >>
> >> 	                                  its own implementation
> > 
> > Thanks, I've re-written this as:
> > 
> > mcgrof@ergon ~/linux-next (git::(no branch, rebasing 20150805-pend-all))$ git diff
> > diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
> > index f4725d1af438..8ba5826ed13b 100644
> > --- a/arch/s390/Kconfig
> > +++ b/arch/s390/Kconfig
> > @@ -618,10 +618,10 @@ config PCI_DOMAINS
> >  config ARCH_PCI_NON_DISJUNCTIVE
> >         def_bool PCI
> >         help
> > -         On the S390 architecture PCI BAR spaces are not disjunctive, as such
> > -         the PCI bar is required on a series of otherwise asm generic PCI
> > -         routines, as such S390 requires itw own implemention for these
> > -         routines.
> > +         On the S390 architecture PCI BAR spaces may overlap with each other,
> 
> That "other," should not end with a comma.  Either use a semi-colon or use a
> period and begin the next sentence with Because.

Amended, thanks.

 Luis
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