[Intel-gfx] [PATCH 1/5] drm/i915: Place the Global GTT VM first in the list of VM

Kenneth Graunke kenneth at whitecape.org
Sat Jan 25 09:32:33 CET 2014


On 01/24/2014 06:17 PM, Ben Widawsky wrote:
> From: Chris Wilson <chris at chris-wilson.co.uk>
> 
> This is useful for debugging as we then know that the first entry is
> always the global GTT, and all later entries the per-process GTT VM.
> 
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> Reviewed-by: Ben Widawsky <ben at bwidawsk.net>
> ---
>  drivers/gpu/drm/i915/i915_gem.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
> index 024e454..946a577 100644
> --- a/drivers/gpu/drm/i915/i915_gem.c
> +++ b/drivers/gpu/drm/i915/i915_gem.c
> @@ -4634,7 +4634,7 @@ void i915_init_vm(struct drm_i915_private *dev_priv,
>  	INIT_LIST_HEAD(&vm->active_list);
>  	INIT_LIST_HEAD(&vm->inactive_list);
>  	INIT_LIST_HEAD(&vm->global_link);
> -	list_add(&vm->global_link, &dev_priv->vm_list);
> +	list_add_tail(&vm->global_link, &dev_priv->vm_list);
>  }
>  
>  void

These five patches are:
Tested-by: Kenneth Graunke <kenneth at whitecape.org>

On Broadwell with drm-intel-nightly, I don't get the batchbuffer as part
of my error state, which is a regression.  With these patches, it's back
again.

Thanks for investigating this, Ben.


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