[Intel-gfx] [PATCH 16/24] drm/i915: Support readback of stolen objects upon error

[Jesse Barnes]

On Tue,  4 Sep 2012 21:03:08 +0100
Chris Wilson <chris at chris-wilson.co.uk> wrote:

> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> ---
>  drivers/gpu/drm/i915/i915_irq.c |    8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
> index dd49046..fe3f60c 100644
> --- a/drivers/gpu/drm/i915/i915_irq.c
> +++ b/drivers/gpu/drm/i915/i915_irq.c
> @@ -923,6 +923,14 @@ i915_error_object_create(struct drm_i915_private *dev_priv,
>  						     reloc_offset);
>  			memcpy_fromio(d, s, PAGE_SIZE);
>  			io_mapping_unmap_atomic(s);
> +		} else if (src->stolen) {
> +			unsigned long offset;
> +
> +			offset = dev_priv->mm.stolen_base;
> +			offset += src->stolen->start;
> +			offset += i << PAGE_SHIFT;
> +
> +			memcpy_fromio(d, (void *)offset, PAGE_SIZE);
>  		} else {
>  			struct page *page;
>  			void *s;

Reviewed-by: Jesse Barnes <jbarnes at virtuousgeek.org>

-- 
Jesse Barnes, Intel Open Source Technology Center