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[v3,0/4] PCI/ACPI: Simplify PCIe _OSC feature negotiation

Message ID 20210824122054.29481-1-joro@8bytes.org (mailing list archive)
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Series PCI/ACPI: Simplify PCIe _OSC feature negotiation | expand

Message

Joerg Roedel Aug. 24, 2021, 12:20 p.m. UTC
From: Joerg Roedel <jroedel@suse.de>

Hi,

here is the third version of my patches to simplify the _OSC
negotiation of PCIe features between Linux and the firmware.

This version is a complete rewrite, so there is no changelog to the
previous version. Patches 1-3 are cleanups and small restructurings of
the code as a preparation for patch 4.

The last patch gets rid of the dedicated _OSC query to check for _OSC
support and merges that functionality into acpi_pci_osc_control_set().

This allows to simplify and/or remove other functions and consilidate
error handling in negotiate_os_control().

I have tested the patches with and without 'pcie_ports=compat' and
found no regressions on my test machine.

Please review.

Thanks,

	Joerg



Joerg Roedel (4):
  PCI/ACPI: Remove OSC_PCI_SUPPORT_MASKS and OSC_PCI_CONTROL_MASKS
  PCI/ACPI: Move supported and control calculations to separaten
    functions
  PCI/ACPI: Move _OSC query checks to separate function
  PCI/ACPI: Check for _OSC support in acpi_pci_osc_control_set()

 drivers/acpi/pci_root.c | 161 +++++++++++++++++++++-------------------
 include/linux/acpi.h    |   2 -
 2 files changed, 84 insertions(+), 79 deletions(-)

Comments

Rafael J. Wysocki Sept. 1, 2021, 7:33 p.m. UTC | #1
On Tue, Aug 24, 2021 at 2:21 PM Joerg Roedel <joro@8bytes.org> wrote:
>
> From: Joerg Roedel <jroedel@suse.de>
>
> Hi,
>
> here is the third version of my patches to simplify the _OSC
> negotiation of PCIe features between Linux and the firmware.
>
> This version is a complete rewrite, so there is no changelog to the
> previous version. Patches 1-3 are cleanups and small restructurings of
> the code as a preparation for patch 4.
>
> The last patch gets rid of the dedicated _OSC query to check for _OSC
> support and merges that functionality into acpi_pci_osc_control_set().
>
> This allows to simplify and/or remove other functions and consilidate
> error handling in negotiate_os_control().
>
> I have tested the patches with and without 'pcie_ports=compat' and
> found no regressions on my test machine.

I have reviewed the patches, so if you want me to queue up this
series, please let me know.

Thanks,
Rafael


> Joerg Roedel (4):
>   PCI/ACPI: Remove OSC_PCI_SUPPORT_MASKS and OSC_PCI_CONTROL_MASKS
>   PCI/ACPI: Move supported and control calculations to separaten
>     functions
>   PCI/ACPI: Move _OSC query checks to separate function
>   PCI/ACPI: Check for _OSC support in acpi_pci_osc_control_set()
>
>  drivers/acpi/pci_root.c | 161 +++++++++++++++++++++-------------------
>  include/linux/acpi.h    |   2 -
>  2 files changed, 84 insertions(+), 79 deletions(-)
>
> --
> 2.32.0
>
Rafael J. Wysocki Sept. 13, 2021, 4:14 p.m. UTC | #2
On Wed, Sep 1, 2021 at 9:33 PM Rafael J. Wysocki <rafael@kernel.org> wrote:
>
> On Tue, Aug 24, 2021 at 2:21 PM Joerg Roedel <joro@8bytes.org> wrote:
> >
> > From: Joerg Roedel <jroedel@suse.de>
> >
> > Hi,
> >
> > here is the third version of my patches to simplify the _OSC
> > negotiation of PCIe features between Linux and the firmware.
> >
> > This version is a complete rewrite, so there is no changelog to the
> > previous version. Patches 1-3 are cleanups and small restructurings of
> > the code as a preparation for patch 4.
> >
> > The last patch gets rid of the dedicated _OSC query to check for _OSC
> > support and merges that functionality into acpi_pci_osc_control_set().
> >
> > This allows to simplify and/or remove other functions and consilidate
> > error handling in negotiate_os_control().
> >
> > I have tested the patches with and without 'pcie_ports=compat' and
> > found no regressions on my test machine.
>
> I have reviewed the patches, so if you want me to queue up this
> series, please let me know.

Should I assume that Bjorn will be taking it?
Joerg Roedel Sept. 14, 2021, 1:49 p.m. UTC | #3
On Mon, Sep 13, 2021 at 06:14:38PM +0200, Rafael J. Wysocki wrote:
> Should I assume that Bjorn will be taking it?

No idea, checking git-log on the file shows mixed Signed-off-bys from
both of you. Bjorn?


	Joerg
Bjorn Helgaas Sept. 14, 2021, 1:52 p.m. UTC | #4
On Tue, Sep 14, 2021 at 8:50 AM Joerg Roedel <joro@8bytes.org> wrote:
>
> On Mon, Sep 13, 2021 at 06:14:38PM +0200, Rafael J. Wysocki wrote:
> > Should I assume that Bjorn will be taking it?
>
> No idea, checking git-log on the file shows mixed Signed-off-bys from
> both of you. Bjorn?

I'll merge it, hopefully this week.  Thanks!

Bjorn
Bjorn Helgaas Sept. 28, 2021, 9:21 p.m. UTC | #5
On Tue, Aug 24, 2021 at 02:20:50PM +0200, Joerg Roedel wrote:
> From: Joerg Roedel <jroedel@suse.de>
> 
> Hi,
> 
> here is the third version of my patches to simplify the _OSC
> negotiation of PCIe features between Linux and the firmware.
> 
> This version is a complete rewrite, so there is no changelog to the
> previous version. Patches 1-3 are cleanups and small restructurings of
> the code as a preparation for patch 4.
> 
> The last patch gets rid of the dedicated _OSC query to check for _OSC
> support and merges that functionality into acpi_pci_osc_control_set().
> 
> This allows to simplify and/or remove other functions and consilidate
> error handling in negotiate_os_control().
> 
> I have tested the patches with and without 'pcie_ports=compat' and
> found no regressions on my test machine.
> 
> Please review.
> 
> Thanks,
> 
> 	Joerg
> 
> 
> 
> Joerg Roedel (4):
>   PCI/ACPI: Remove OSC_PCI_SUPPORT_MASKS and OSC_PCI_CONTROL_MASKS
>   PCI/ACPI: Move supported and control calculations to separaten
>     functions
>   PCI/ACPI: Move _OSC query checks to separate function
>   PCI/ACPI: Check for _OSC support in acpi_pci_osc_control_set()
> 
>  drivers/acpi/pci_root.c | 161 +++++++++++++++++++++-------------------
>  include/linux/acpi.h    |   2 -
>  2 files changed, 84 insertions(+), 79 deletions(-)

Applied with Rafael's reviewed-by to pci/acpi for v5.16, thanks!
Joerg Roedel Sept. 29, 2021, 8:09 a.m. UTC | #6
On Tue, Sep 28, 2021 at 04:21:19PM -0500, Bjorn Helgaas wrote:
> Applied with Rafael's reviewed-by to pci/acpi for v5.16, thanks!

Thanks Bjorn!