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author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2015-09-24 15:53:14 -0700 |
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committer | Matt Roper <matthew.d.roper@intel.com> | 2015-10-21 14:54:02 -0700 |
commit | b9d5c839f18c8bbd79a61013371eb8cadf6d897d (patch) | |
tree | 468f05eb1146a959a72dec9de6455598bed7adde /drivers/gpu/drm/i915/intel_pm.c | |
parent | 791a32be6eb233773dd5698375d051af99e68d3b (diff) | |
download | op-kernel-dev-b9d5c839f18c8bbd79a61013371eb8cadf6d897d.zip op-kernel-dev-b9d5c839f18c8bbd79a61013371eb8cadf6d897d.tar.gz |
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: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Smoke-tested-by: Paulo Zanoni <przanoni@gmail.com>
Link: http://patchwork.freedesktop.org/patch/60366/
Diffstat (limited to 'drivers/gpu/drm/i915/intel_pm.c')
-rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 64 |
1 files changed, 35 insertions, 29 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 63d43cf..e01e54a 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -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, |