Re: [PATCH v2 5/5] MAINTAINERS: Add two files to Malta section

2019-11-23 Thread Aleksandar Markovic
On Saturday, November 23, 2019, Philippe Mathieu-Daudé 
wrote:

> On 11/22/19 9:37 PM, Aleksandar Markovic wrote:
>
>> On Fri, Nov 22, 2019 at 9:28 PM Philippe Mathieu-Daudé
>>  wrote:
>>
>>>
>>> On 11/13/19 2:47 PM, Aleksandar Markovic wrote:
>>>
 From: Aleksandar Markovic 

 Add two files that were recently introduced in a refactoring,
 that Malta emulation relies on. They are added by this patch
 to Malta section, but they are not added to the general MIPS
 section, since they are really not MIPS-specific, and there
 may be some non-MIPS hardware using them in future.

 Signed-off-by: Aleksandar Markovic 
 ---
MAINTAINERS | 2 ++
1 file changed, 2 insertions(+)

 diff --git a/MAINTAINERS b/MAINTAINERS
 index ba9ca98..f8a1646 100644
 --- a/MAINTAINERS
 +++ b/MAINTAINERS
 @@ -959,8 +959,10 @@ M: Philippe Mathieu-Daudé 
R: Hervé Poussineau 
R: Aurelien Jarno 
S: Maintained
 +F: hw/isa/piix4.c

>>>
>>> Maybe:
>>>
>>>  F: hw/*/piix4.c
>>>
>>> Or also add:
>>>
>>>  F: hw/acpi/piix4.c
>>>
>>>
>> Philippe, are you sure? hw/acpi/piix4.c is used in PC, not in Malta, no?
>>
>
> It is instantiated via:
>
>   mips_malta_init -> piix4_create -> piix4_pm_init
>
> The ACPI block is part of the PIIX4 chipset and should be mapped
> unconditionally.
>
>
Philippe, OK, sorry I failed to notice this detail. It just looked odd to
me that ACPI and MIPS could be connected, but stranger things happen. I am
going to add

F: hw/acpi/piix4.c

in the next version of this series. Should any change happen in the future,
I leave it to you to update the file list, of course.

Have a great sunny weekend!

Aleksandar



>
> The Malta indeed uses a PIIX4, which is a PIIX3 extended.
>
> The PC uses a Frankenstein PIIX3 with ACPI from PIIX4... I suppose because
> it started with a PIIX3, then we wanted power saving features but it was
> too late to switch to the PIIX4, so we abused of the fact than these blocks
> are exposed internally as PCI devices, so we can overload a PIIX3.
>
> See https://www.mail-archive.com/qemu-devel@nongnu.org/msg601512.html
>
>
> FYI I have a patch ready removing the 'if smbus' check in piix4_create().
>
>F: hw/mips/mips_malta.c
F: hw/mips/gt64xxx_pci.c
 +F: include/hw/southbridge/piix.h
F: tests/acceptance/linux_ssh_mips_malta.py

Mipssim


>>> Reviewed-by: Philippe Mathieu-Daudé 
>>>
>>>
>>>
>


Re: [PATCH v2 5/5] MAINTAINERS: Add two files to Malta section

2019-11-23 Thread Philippe Mathieu-Daudé

On 11/22/19 9:37 PM, Aleksandar Markovic wrote:

On Fri, Nov 22, 2019 at 9:28 PM Philippe Mathieu-Daudé
 wrote:


On 11/13/19 2:47 PM, Aleksandar Markovic wrote:

From: Aleksandar Markovic 

Add two files that were recently introduced in a refactoring,
that Malta emulation relies on. They are added by this patch
to Malta section, but they are not added to the general MIPS
section, since they are really not MIPS-specific, and there
may be some non-MIPS hardware using them in future.

Signed-off-by: Aleksandar Markovic 
---
   MAINTAINERS | 2 ++
   1 file changed, 2 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index ba9ca98..f8a1646 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -959,8 +959,10 @@ M: Philippe Mathieu-Daudé 
   R: Hervé Poussineau 
   R: Aurelien Jarno 
   S: Maintained
+F: hw/isa/piix4.c


Maybe:

 F: hw/*/piix4.c

Or also add:

 F: hw/acpi/piix4.c



Philippe, are you sure? hw/acpi/piix4.c is used in PC, not in Malta, no?


It is instantiated via:

  mips_malta_init -> piix4_create -> piix4_pm_init

The ACPI block is part of the PIIX4 chipset and should be mapped 
unconditionally.



The Malta indeed uses a PIIX4, which is a PIIX3 extended.

The PC uses a Frankenstein PIIX3 with ACPI from PIIX4... I suppose 
because it started with a PIIX3, then we wanted power saving features 
but it was too late to switch to the PIIX4, so we abused of the fact 
than these blocks are exposed internally as PCI devices, so we can 
overload a PIIX3.


See https://www.mail-archive.com/qemu-devel@nongnu.org/msg601512.html


FYI I have a patch ready removing the 'if smbus' check in piix4_create().


   F: hw/mips/mips_malta.c
   F: hw/mips/gt64xxx_pci.c
+F: include/hw/southbridge/piix.h
   F: tests/acceptance/linux_ssh_mips_malta.py

   Mipssim



Reviewed-by: Philippe Mathieu-Daudé 







Re: [PATCH v2 5/5] MAINTAINERS: Add two files to Malta section

2019-11-22 Thread Aleksandar Markovic
On Fri, Nov 22, 2019 at 9:28 PM Philippe Mathieu-Daudé
 wrote:
>
> On 11/13/19 2:47 PM, Aleksandar Markovic wrote:
> > From: Aleksandar Markovic 
> >
> > Add two files that were recently introduced in a refactoring,
> > that Malta emulation relies on. They are added by this patch
> > to Malta section, but they are not added to the general MIPS
> > section, since they are really not MIPS-specific, and there
> > may be some non-MIPS hardware using them in future.
> >
> > Signed-off-by: Aleksandar Markovic 
> > ---
> >   MAINTAINERS | 2 ++
> >   1 file changed, 2 insertions(+)
> >
> > diff --git a/MAINTAINERS b/MAINTAINERS
> > index ba9ca98..f8a1646 100644
> > --- a/MAINTAINERS
> > +++ b/MAINTAINERS
> > @@ -959,8 +959,10 @@ M: Philippe Mathieu-Daudé 
> >   R: Hervé Poussineau 
> >   R: Aurelien Jarno 
> >   S: Maintained
> > +F: hw/isa/piix4.c
>
> Maybe:
>
> F: hw/*/piix4.c
>
> Or also add:
>
> F: hw/acpi/piix4.c
>

Philippe, are you sure? hw/acpi/piix4.c is used in PC, not in Malta, no?

> >   F: hw/mips/mips_malta.c
> >   F: hw/mips/gt64xxx_pci.c
> > +F: include/hw/southbridge/piix.h
> >   F: tests/acceptance/linux_ssh_mips_malta.py
> >
> >   Mipssim
> >
>
> Reviewed-by: Philippe Mathieu-Daudé 
>
>



Re: [PATCH v2 5/5] MAINTAINERS: Add two files to Malta section

2019-11-22 Thread Philippe Mathieu-Daudé

On 11/13/19 2:47 PM, Aleksandar Markovic wrote:

From: Aleksandar Markovic 

Add two files that were recently introduced in a refactoring,
that Malta emulation relies on. They are added by this patch
to Malta section, but they are not added to the general MIPS
section, since they are really not MIPS-specific, and there
may be some non-MIPS hardware using them in future.

Signed-off-by: Aleksandar Markovic 
---
  MAINTAINERS | 2 ++
  1 file changed, 2 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index ba9ca98..f8a1646 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -959,8 +959,10 @@ M: Philippe Mathieu-Daudé 
  R: Hervé Poussineau 
  R: Aurelien Jarno 
  S: Maintained
+F: hw/isa/piix4.c


Maybe:

   F: hw/*/piix4.c

Or also add:

   F: hw/acpi/piix4.c


  F: hw/mips/mips_malta.c
  F: hw/mips/gt64xxx_pci.c
+F: include/hw/southbridge/piix.h
  F: tests/acceptance/linux_ssh_mips_malta.py
  
  Mipssim




Reviewed-by: Philippe Mathieu-Daudé 




[PATCH v2 5/5] MAINTAINERS: Add two files to Malta section

2019-11-13 Thread Aleksandar Markovic
From: Aleksandar Markovic 

Add two files that were recently introduced in a refactoring,
that Malta emulation relies on. They are added by this patch
to Malta section, but they are not added to the general MIPS
section, since they are really not MIPS-specific, and there
may be some non-MIPS hardware using them in future.

Signed-off-by: Aleksandar Markovic 
---
 MAINTAINERS | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index ba9ca98..f8a1646 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -959,8 +959,10 @@ M: Philippe Mathieu-Daudé 
 R: Hervé Poussineau 
 R: Aurelien Jarno 
 S: Maintained
+F: hw/isa/piix4.c
 F: hw/mips/mips_malta.c
 F: hw/mips/gt64xxx_pci.c
+F: include/hw/southbridge/piix.h
 F: tests/acceptance/linux_ssh_mips_malta.py
 
 Mipssim
-- 
2.7.4