[Intel-gfx] [RFC 06/22] drm/i915/slpc: If using SLPC, do not set frequency
daniel at ffwll.ch
Fri Jan 22 09:22:08 PST 2016
On Fri, Jan 22, 2016 at 05:53:29PM +0100, Daniel Vetter wrote:
> On Wed, Jan 20, 2016 at 06:26:08PM -0800, tom.orourke at intel.com wrote:
> > From: Tom O'Rourke <Tom.O'Rourke at intel.com>
> > When frequency requests are made by SLPC, host driver
> > should not attempt to make frequency requests due to
> > potential conflicts.
> > Host-based turbo operations are already avoided when
> > SLPC is used. This change covers other frequency
> > requests such as from sysfs or debugfs interfaces.
> > Signed-off-by: Tom O'Rourke <Tom.O'Rourke at intel.com>
> Does this break the sysfs interface, i.e. can userspace still set limits
> when SLPC is in use?
Ah found the sysfs control bits later on in the series.
Software Engineer, Intel Corporation
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