[PATCH] drm/amdgpu: Fix no irq process when evict vram

[Mike Lothian]

Is this a follow on to
https://cgit.freedesktop.org/~agd5f/linux/commit/?h=drm-next-4.16-wip&id=b9141cd3930e390f156739829ca9589fda7926e4


On Wed, 13 Dec 2017 at 07:11 Yintian Tao <yttao at amd.com> wrote:

> When unload amdgpu driver we use sdma to evict vram but there is no
> irq process after sdma completed work which raises that waiting for the
> fence costs 2s which will trigger VFLR under SRIOV and at last make
> unload driver failed.The reason is that the shutdown varible in adev
> is set to true before evict vram, it cause ISR directly return without
> processing.Therefore, we need set the varible after evict vram.
>
> Change-Id: I7bf75481aa0744b99c41672b49670adc70b478bd
> Signed-off-by: Yintian Tao <yttao at amd.com>
> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> index a269bbc..80934ee 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> @@ -2458,7 +2458,6 @@ void amdgpu_device_fini(struct amdgpu_device *adev)
>         int r;
>
>         DRM_INFO("amdgpu: finishing device.\n");
> -       adev->shutdown = true;
>         if (adev->mode_info.mode_config_initialized)
>                 drm_crtc_force_disable_all(adev->ddev);
>
> @@ -2466,6 +2465,7 @@ void amdgpu_device_fini(struct amdgpu_device *adev)
>         amdgpu_fence_driver_fini(adev);
>         amdgpu_fbdev_fini(adev);
>         r = amdgpu_fini(adev);
> +       adev->shutdown = true;
>         if (adev->firmware.gpu_info_fw) {
>                 release_firmware(adev->firmware.gpu_info_fw);
>                 adev->firmware.gpu_info_fw = NULL;
> --
> 2.7.4
>
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