[PATCH] drm/amdgpu/si: fix SI after doorbell rework

[Zeng, Oak]

Reviewed-by: Oak Zeng <Oak.Zeng at amd.com>

Regards,
Oak

-----Original Message-----
From: Alex Deucher <alexdeucher at gmail.com> 
Sent: Tuesday, December 4, 2018 2:01 PM
To: amd-gfx list <amd-gfx at lists.freedesktop.org>; Zeng, Oak <Oak.Zeng at amd.com>
Cc: Deucher, Alexander <Alexander.Deucher at amd.com>
Subject: Re: [PATCH] drm/amdgpu/si: fix SI after doorbell rework

Ping?

On Sun, Dec 2, 2018 at 9:50 PM Alex Deucher <alexdeucher at gmail.com> wrote:
>
> SI does not use doorbells, move asic doorbell init later asic check.
>
> Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=108920
> Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c 
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> index c75badfa5c4c..5a72906fdc6b 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> @@ -515,7 +515,6 @@ void amdgpu_device_pci_config_reset(struct amdgpu_device *adev)
>   */
>  static int amdgpu_device_doorbell_init(struct amdgpu_device *adev)  {
> -       amdgpu_asic_init_doorbell_index(adev);
>
>         /* No doorbell on SI hardware generation */
>         if (adev->asic_type < CHIP_BONAIRE) { @@ -529,6 +528,8 @@ 
> static int amdgpu_device_doorbell_init(struct amdgpu_device *adev)
>         if (pci_resource_flags(adev->pdev, 2) & IORESOURCE_UNSET)
>                 return -EINVAL;
>
> +       amdgpu_asic_init_doorbell_index(adev);
> +
>         /* doorbell bar mapping */
>         adev->doorbell.base = pci_resource_start(adev->pdev, 2);
>         adev->doorbell.size = pci_resource_len(adev->pdev, 2);
> --
> 2.13.6
>