drm/i915: Remove wm_config from dev_priv/intel_atomic_state

We calculate the watermark config into intel_atomic_state and then save
it into dev_priv, but never actually use it from there.  This is
left-over from some early ILK-style watermark programming designs that
got changed over time.

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1463061971-19638-18-git-send-email-matthew.d.roper@intel.com

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index dd111f8..1ba6141 100644 (file)
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1975,9 +1975,6 @@ struct drm_i915_private {
                 */
                uint16_t skl_latency[8];
 
-               /* Committed wm config */
-               struct intel_wm_config config;
-
                /*
                 * The skl_wm_values structure is a bit too big for stack
                 * allocation, so we keep the staging struct where we store

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 1c187ed..7686512 100644 (file)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -13313,35 +13313,6 @@ static int calc_watermark_data(struct drm_atomic_state *state)
 {
        struct drm_device *dev = state->dev;
        struct drm_i915_private *dev_priv = to_i915(dev);
-       struct intel_atomic_state *intel_state = to_intel_atomic_state(state);
-       struct drm_crtc *crtc;
-       struct drm_crtc_state *cstate;
-       struct drm_plane *plane;
-       struct drm_plane_state *pstate;
-
-       /*
-        * Calculate watermark configuration details now that derived
-        * plane/crtc state is all properly updated.
-        */
-       drm_for_each_crtc(crtc, dev) {
-               cstate = drm_atomic_get_existing_crtc_state(state, crtc) ?:
-                       crtc->state;
-
-               if (cstate->active)
-                       intel_state->wm_config.num_pipes_active++;
-       }
-       drm_for_each_legacy_plane(plane, dev) {
-               pstate = drm_atomic_get_existing_plane_state(state, plane) ?:
-                       plane->state;
-
-               if (!to_intel_plane_state(pstate)->visible)
-                       continue;
-
-               intel_state->wm_config.sprites_enabled = true;
-               if (pstate->crtc_w != pstate->src_w >> 16 ||
-                   pstate->crtc_h != pstate->src_h >> 16)
-                       intel_state->wm_config.sprites_scaled = true;
-       }
 
        /* Is there platform-specific watermark information to calculate? */
        if (dev_priv->display.compute_global_watermarks)
@@ -13598,7 +13569,6 @@ static int intel_atomic_commit(struct drm_device *dev,
        }
 
        drm_atomic_helper_swap_state(dev, state);
-       dev_priv->wm.config = intel_state->wm_config;
        dev_priv->wm.distrust_bios_wm = false;
        dev_priv->wm.skl_results = intel_state->wm_results;
        intel_shared_dpll_commit(state);
@@ -15367,7 +15337,6 @@ retry:
        }
 
        /* Write calculated watermark values back */
-       to_i915(dev)->wm.config = to_intel_atomic_state(state)->wm_config;
        for_each_crtc_in_state(state, crtc, cstate, i) {
                struct intel_crtc_state *cs = to_intel_crtc_state(cstate);
 

diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 742d969..0cd30b4 100644 (file)
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -305,7 +305,6 @@ struct intel_atomic_state {
        unsigned int min_pixclk[I915_MAX_PIPES];
 
        struct intel_shared_dpll_config shared_dpll[I915_NUM_PLLS];
-       struct intel_wm_config wm_config;
 
        /*
         * Current watermarks can't be trusted during hardware readout, so