[Intel-gfx] [PATCH] drm/i915: Request driver probe from an async task

[David Weinehall]

On Fri, Mar 23, 2018 at 08:30:48AM +0000, Chris Wilson wrote:
> As we are careful not to register external interfaces before the
> internals are brought up, we are not dependent upon a synchronous
> probing and can allow ourselves to be probed from a secondary thread
> during system bootup. We already do relegate some configuration to
> asynchronous tasks (such as setting up the fbdev), now do the entire
> probe.
> 
> References: https://bugs.freedesktop.org/show_bug.cgi?id=105622
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

LGTM, and still seems to apply cleanly.

Reviewed-by: David Weinehall <david.weinehall at linux.intel.com>

> Cc: Imre Deak <imre.deak at intel.com>
> Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
> Cc: David Weinehall <david.weinehall at linux.intel.com>
> ---
>  drivers/gpu/drm/i915/i915_pci.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
> index 4364922e935d..be7b03d48229 100644
> --- a/drivers/gpu/drm/i915/i915_pci.c
> +++ b/drivers/gpu/drm/i915/i915_pci.c
> @@ -726,6 +726,7 @@ static struct pci_driver i915_pci_driver = {
>  	.probe = i915_pci_probe,
>  	.remove = i915_pci_remove,
>  	.driver.pm = &i915_pm_ops,
> +	.driver.probe_type = PROBE_PREFER_ASYNCHRONOUS,
>  };
>  
>  static int __init i915_init(void)
> -- 
> 2.16.2
>