On Fri, Oct 18, 2013 at 05:18:27PM +0200, Daniel Vetter wrote:
> This is useful when we only have aliasing ppgtt and want to figure out
> what exactly is accesssible and what not. Paulo can somehow overwrite
> the fbcon framebuffer with the blitter on his hsw machine ...
>
> Cc: Paulo Zanoni <przanoni@xxxxxxxxx>
> Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
> ---
> drivers/gpu/drm/i915/i915_debugfs.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
> index 061182a..e0a3b56 100644
> --- a/drivers/gpu/drm/i915/i915_debugfs.c
> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
> @@ -124,7 +124,9 @@ static inline const char *get_global_flag(struct drm_i915_gem_object *obj)
> static void
> describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
> {
> + struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
> struct i915_vma *vma;
> +
> seq_printf(m, "%pK: %s%s%s %8zdKiB %02x %02x %u %u %u%s%s%s",
> &obj->base,
> get_pin_flag(obj),
> @@ -155,6 +157,10 @@ describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
> seq_printf(m, "gtt offset: %08lx, size: %08lx)",
> vma->node.start, vma->node.size);
> }
> + if (dev_priv->mm.aliasing_ppgtt)
> + seq_pritnf(" (bindings: %s%s)",
> + obj->has_global_gtt_mapping ? "g" : "",
> + obj->has_aliasing_ppgtt_mapping ? "pp" : "");
So we have:
...(bindings: )...
...(bindings: g)...
...(bindings: pp)...
...(bindings: gpp)...
That looks more confusing than informative atm.
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
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