Commit b9d5c839 authored by Ville Syrjälä's avatar Ville Syrjälä Committed by Matt Roper

drm/i915: Refactor ilk_update_wm (v3)

Split ilk_update_wm() into two parts; one doing the programming
and the other the calculations.

v2: Fix typo in commit message

v3 (by Matt): Heavily rebased for current codebase.
Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: default avatarMatt Roper <matthew.d.roper@intel.com>
Reviewed-by: default avatarMaarten Lankhorst <maarten.lankhorst@linux.intel.com>
Smoke-tested-by: default avatarPaulo Zanoni <przanoni@gmail.com>
Link: http://patchwork.freedesktop.org/patch/60366/
parent 791a32be
......@@ -3617,39 +3617,14 @@ static void skl_update_wm(struct drm_crtc *crtc)
dev_priv->wm.skl_hw = *results;
}
static void ilk_update_wm(struct drm_crtc *crtc)
static void ilk_program_watermarks(struct drm_i915_private *dev_priv)
{
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
struct intel_crtc_state *cstate = to_intel_crtc_state(crtc->state);
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_device *dev = dev_priv->dev;
struct intel_pipe_wm lp_wm_1_2 = {}, lp_wm_5_6 = {}, *best_lp_wm;
struct ilk_wm_maximums max;
struct intel_wm_config config = {};
struct ilk_wm_values results = {};
enum intel_ddb_partitioning partitioning;
struct intel_pipe_wm pipe_wm = {};
struct intel_pipe_wm lp_wm_1_2 = {}, lp_wm_5_6 = {}, *best_lp_wm;
struct intel_wm_config config = {};
WARN_ON(cstate->base.active != intel_crtc->active);
/*
* IVB workaround: must disable low power watermarks for at least
* one frame before enabling scaling. LP watermarks can be re-enabled
* when scaling is disabled.
*
* WaCxSRDisabledForSpriteScaling:ivb
*/
if (cstate->disable_lp_wm) {
ilk_disable_lp_wm(dev);
intel_wait_for_vblank(dev, intel_crtc->pipe);
}
intel_compute_pipe_wm(cstate, &pipe_wm);
if (!memcmp(&intel_crtc->wm.active, &pipe_wm, sizeof(pipe_wm)))
return;
intel_crtc->wm.active = pipe_wm;
ilk_compute_wm_config(dev, &config);
......@@ -3675,6 +3650,37 @@ static void ilk_update_wm(struct drm_crtc *crtc)
ilk_write_wm_values(dev_priv, &results);
}
static void ilk_update_wm(struct drm_crtc *crtc)
{
struct drm_i915_private *dev_priv = to_i915(crtc->dev);
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
struct intel_crtc_state *cstate = to_intel_crtc_state(crtc->state);
struct intel_pipe_wm pipe_wm = {};
WARN_ON(cstate->base.active != intel_crtc->active);
/*
* IVB workaround: must disable low power watermarks for at least
* one frame before enabling scaling. LP watermarks can be re-enabled
* when scaling is disabled.
*
* WaCxSRDisabledForSpriteScaling:ivb
*/
if (cstate->disable_lp_wm) {
ilk_disable_lp_wm(crtc->dev);
intel_wait_for_vblank(crtc->dev, intel_crtc->pipe);
}
intel_compute_pipe_wm(cstate, &pipe_wm);
if (!memcmp(&intel_crtc->wm.active, &pipe_wm, sizeof(pipe_wm)))
return;
intel_crtc->wm.active = pipe_wm;
ilk_program_watermarks(dev_priv);
}
static void skl_pipe_wm_active_state(uint32_t val,
struct skl_pipe_wm *active,
bool is_transwm,
......
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