On 24/11/2016 08:21, Chris Wilson wrote:
On Thu, Nov 24, 2016 at 08:15:31AM +0000, Tvrtko Ursulin wrote:
On 24/11/2016 07:13, Chris Wilson wrote:
On Wed, Nov 23, 2016 at 04:52:38PM -0800, Anusha Srivatsa wrote:
Remove the enable_guc_loading parameter. Load the GuC on
plaforms that have GuC. All issues we found so far are related
to GuC features like the command submission, but no bug is related
to the guc loading itself.
This addresses the case when we need GuC loaded even with no GuC feature
in use, like - GuC authenticating HuC loading.
Why not just load the firmware if it may be used?
It was discussed briefly in the other thread, but I suppose as soon
as the HuC patches go in that would be always so it may not be that
useful.
Unless there is a reason to add a HuC enable/disable parameter in
general. I have no idea on that one.
In hindsight, we should have had i915.enable_dmc to easily protect users
against failures. History says we will regret enabling a new piece of
hw/fw without a feature option.
So..
1. Add i915.enable_huc, default to enabled
2. Unexport i915.enable_guc_loading
3. Gate enable_guc_loading by i915.enable_huc and
i915.enable_guc_submission
?
Regards,
Tvrtko
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