[Intel-gfx] [PATCH 1/2] drm/i915: Early return for no-op i915_vma_pin_fence()

[Mika Kuoppala]

Chris Wilson <chris at chris-wilson.co.uk> writes:

> If we have no fence and desire no fence on the vma, return before we try
> and take the vm->mutex.
>
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: Mika Kuoppala <mika.kuoppala at linux.intel.com>

Reviewed-by: Mika Kuoppala <mika.kuoppala at linux.intel.com>

> ---
>  drivers/gpu/drm/i915/i915_gem_fence_reg.c | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/i915_gem_fence_reg.c b/drivers/gpu/drm/i915/i915_gem_fence_reg.c
> index 71efccfde122..d9c34a23cd67 100644
> --- a/drivers/gpu/drm/i915/i915_gem_fence_reg.c
> +++ b/drivers/gpu/drm/i915/i915_gem_fence_reg.c
> @@ -412,6 +412,9 @@ int i915_vma_pin_fence(struct i915_vma *vma)
>  {
>  	int err;
>  
> +	if (!vma->fence && !i915_gem_object_is_tiled(vma->obj))
> +		return 0;
> +
>  	/*
>  	 * Note that we revoke fences on runtime suspend. Therefore the user
>  	 * must keep the device awake whilst using the fence.
> -- 
> 2.25.0.rc1