All of lore.kernel.org
 help / color / mirror / Atom feed
From: "Rafael J. Wysocki" <rafael@kernel.org>
To: Joerg Roedel <joro@8bytes.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>,
	"Rafael J . Wysocki" <rjw@rjwysocki.net>,
	Len Brown <lenb@kernel.org>,
	Linux PCI <linux-pci@vger.kernel.org>,
	ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Joerg Roedel <jroedel@suse.de>
Subject: Re: [PATCH v3 3/4] PCI/ACPI: Move _OSC query checks to separate function
Date: Wed, 1 Sep 2021 20:57:30 +0200	[thread overview]
Message-ID: <CAJZ5v0gPRcv-jmRU8JmQiXy_+Kb7augKvKWxiGHz3K9VqqS2Yg@mail.gmail.com> (raw)
In-Reply-To: <20210824122054.29481-4-joro@8bytes.org>

On Tue, Aug 24, 2021 at 2:21 PM Joerg Roedel <joro@8bytes.org> wrote:
>
> From: Joerg Roedel <jroedel@suse.de>
>
> Move the checks about whether the _OSC controls are requested from the
> firmware to a separate function.
>
> Signed-off-by: Joerg Roedel <jroedel@suse.de>

Reviewed-by: Rafael J. Wysocki <rafael@kernel.org>

> ---
>  drivers/acpi/pci_root.c | 28 +++++++++++++++++++---------
>  1 file changed, 19 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
> index ed4e6b55e9bc..f12e512bcddc 100644
> --- a/drivers/acpi/pci_root.c
> +++ b/drivers/acpi/pci_root.c
> @@ -449,6 +449,24 @@ static u32 calculate_control(void)
>         return control;
>  }
>
> +static bool os_control_query_checks(struct acpi_pci_root *root, u32 support)
> +{
> +       struct acpi_device *device = root->device;
> +
> +       if (pcie_ports_disabled) {
> +               dev_info(&device->dev, "PCIe port services disabled; not requesting _OSC control\n");
> +               return false;
> +       }
> +
> +       if ((support & ACPI_PCIE_REQ_SUPPORT) != ACPI_PCIE_REQ_SUPPORT) {
> +               decode_osc_support(root, "not requesting OS control; OS requires",
> +                                  ACPI_PCIE_REQ_SUPPORT);
> +               return false;
> +       }
> +
> +       return true;
> +}
> +
>  static void negotiate_os_control(struct acpi_pci_root *root, int *no_aspm,
>                                  bool is_pcie)
>  {
> @@ -485,16 +503,8 @@ static void negotiate_os_control(struct acpi_pci_root *root, int *no_aspm,
>                 return;
>         }
>
> -       if (pcie_ports_disabled) {
> -               dev_info(&device->dev, "PCIe port services disabled; not requesting _OSC control\n");
> +       if (!os_control_query_checks(root, support))
>                 return;
> -       }
> -
> -       if ((support & ACPI_PCIE_REQ_SUPPORT) != ACPI_PCIE_REQ_SUPPORT) {
> -               decode_osc_support(root, "not requesting OS control; OS requires",
> -                                  ACPI_PCIE_REQ_SUPPORT);
> -               return;
> -       }
>
>         requested = control = calculate_control();
>
> --
> 2.32.0
>

  reply	other threads:[~2021-09-01 18:57 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-24 12:20 [PATCH v3 0/4] PCI/ACPI: Simplify PCIe _OSC feature negotiation Joerg Roedel
2021-08-24 12:20 ` [PATCH v3 1/4] PCI/ACPI: Remove OSC_PCI_SUPPORT_MASKS and OSC_PCI_CONTROL_MASKS Joerg Roedel
2021-09-01 18:53   ` Rafael J. Wysocki
2021-08-24 12:20 ` [PATCH v3 2/4] PCI/ACPI: Move supported and control calculations to separaten functions Joerg Roedel
2021-09-01 18:56   ` Rafael J. Wysocki
2021-08-24 12:20 ` [PATCH v3 3/4] PCI/ACPI: Move _OSC query checks to separate function Joerg Roedel
2021-09-01 18:57   ` Rafael J. Wysocki [this message]
2021-08-24 12:20 ` [PATCH v3 4/4] PCI/ACPI: Check for _OSC support in acpi_pci_osc_control_set() Joerg Roedel
2021-09-01 19:31   ` Rafael J. Wysocki
2021-09-01 19:33 ` [PATCH v3 0/4] PCI/ACPI: Simplify PCIe _OSC feature negotiation Rafael J. Wysocki
2021-09-13 16:14   ` Rafael J. Wysocki
2021-09-14 13:49     ` Joerg Roedel
2021-09-14 13:52       ` Bjorn Helgaas
2021-09-28 21:21 ` Bjorn Helgaas
2021-09-29  8:09   ` Joerg Roedel

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=CAJZ5v0gPRcv-jmRU8JmQiXy_+Kb7augKvKWxiGHz3K9VqqS2Yg@mail.gmail.com \
    --to=rafael@kernel.org \
    --cc=bhelgaas@google.com \
    --cc=joro@8bytes.org \
    --cc=jroedel@suse.de \
    --cc=lenb@kernel.org \
    --cc=linux-acpi@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-pci@vger.kernel.org \
    --cc=rjw@rjwysocki.net \
    --subject='Re: [PATCH v3 3/4] PCI/ACPI: Move _OSC query checks to separate function' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.