linux-kernel - Re: [PATCH v2] drm/radeon: Fix EEH during kexec

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Date:   Thu, 1 Aug 2019 14:48:39 -0400
From:   Alex Deucher <alexdeucher@...il.com>
To:     KyleMahlkuch <kmahlkuc@...ux.vnet.ibm.com>
Cc:     Chunming Zhou <David1.Zhou@....com>,
        LKML <linux-kernel@...r.kernel.org>,
        amd-gfx list <amd-gfx@...ts.freedesktop.org>,
        "Deucher, Alexander" <alexander.deucher@....com>,
        Christian Koenig <christian.koenig@....com>
Subject: Re: [PATCH v2] drm/radeon: Fix EEH during kexec

On Thu, Aug 1, 2019 at 2:01 PM KyleMahlkuch <kmahlkuc@...ux.vnet.ibm.com> wrote:
>
> During kexec some adapters hit an EEH since they are not properly
> shut down in the radeon_pci_shutdown() function. Adding
> radeon_suspend_kms() fixes this issue.
>
> Signed-off-by: Kyle Mahlkuch <Kyle.Mahlkuch at ibm.com>

Applied.  thanks!

Alex

> ---
>  drivers/gpu/drm/radeon/radeon_drv.c | 8 ++++++++
>  1 file changed, 8 insertions(+)
>
> diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
> index a6cbe11..15d7beb 100644
> --- a/drivers/gpu/drm/radeon/radeon_drv.c
> +++ b/drivers/gpu/drm/radeon/radeon_drv.c
> @@ -349,11 +349,19 @@ static int radeon_pci_probe(struct pci_dev *pdev,
>  static void
>  radeon_pci_shutdown(struct pci_dev *pdev)
>  {
> +       struct drm_device *ddev = pci_get_drvdata(pdev);
> +
>         /* if we are running in a VM, make sure the device
>          * torn down properly on reboot/shutdown
>          */
>         if (radeon_device_is_virtual())
>                 radeon_pci_remove(pdev);
> +
> +       /* Some adapters need to be suspended before a
> +       * shutdown occurs in order to prevent an error
> +       * during kexec.
> +       */
> +       radeon_suspend_kms(ddev, true, true, false);
>  }
>
>  static int radeon_pmops_suspend(struct device *dev)
> --
> 1.8.3.1
>
> _______________________________________________
> amd-gfx mailing list
> amd-gfx@...ts.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx

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