On Wed, Oct 26, 2016 at 03:41:35PM +0200, Maarten Lankhorst wrote:
> Allow the driver to write watermarks during atomic evasion.
> This will make it possible to write the watermarks in a cleaner
> way on gen9+.
>
> intel_atomic_state is not used here yet, but will be used when
> we program all watermarks as a separate step during evasion.
>
> This also writes linetime all the time, while before it was only
> done during plane updates. This looks like this could be a bugfix,
> but I'm not sure what it affects.
>
> Changes since v1:
> - Add comment about atomic evasion to commit message.
> - Unwrap I915_WRITE call. (Lyude)
>
> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
> Cc: Matt Roper <matthew.d.roper@xxxxxxxxx>
> Cc: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/i915_drv.h | 6 ++++--
> drivers/gpu/drm/i915/intel_display.c | 20 +++++++++-----------
> drivers/gpu/drm/i915/intel_pm.c | 18 ++++++++++++++++--
> 3 files changed, 29 insertions(+), 15 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index 7a621c74254e..7a477d6a486e 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -485,6 +485,7 @@ struct sdvo_device_mapping {
>
> struct intel_connector;
> struct intel_encoder;
> +struct intel_atomic_state;
> struct intel_crtc_state;
> struct intel_initial_plane_config;
> struct intel_crtc;
> @@ -498,8 +499,9 @@ struct drm_i915_display_funcs {
> int (*compute_intermediate_wm)(struct drm_device *dev,
> struct intel_crtc *intel_crtc,
> struct intel_crtc_state *newstate);
> - void (*initial_watermarks)(struct intel_crtc_state *cstate);
> - void (*optimize_watermarks)(struct intel_crtc_state *cstate);
> + void (*initial_watermarks)(struct intel_atomic_state *state, struct intel_crtc_state *cstate);
> + void (*atomic_evade_watermarks)(struct intel_atomic_state *state, struct intel_crtc_state *cstate);
Same drive by comment I gave before somewhere:
That name is still super confusing. We're not trying to evade watermarks are we?
--
Ville Syrjälä
Intel OTC
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