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path: root/drivers/gpu/drm/i915/display/intel_display.c
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Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_display.c')
-rw-r--r--drivers/gpu/drm/i915/display/intel_display.c95
1 files changed, 0 insertions, 95 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 8f95c994b3a7..82e687b40db4 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -133,101 +133,6 @@ static void hsw_set_transconf(const struct intel_crtc_state *crtc_state);
static void bdw_set_pipemisc(const struct intel_crtc_state *crtc_state);
static void ilk_pfit_enable(const struct intel_crtc_state *crtc_state);
-/**
- * intel_update_watermarks - update FIFO watermark values based on current modes
- * @dev_priv: i915 device
- *
- * Calculate watermark values for the various WM regs based on current mode
- * and plane configuration.
- *
- * There are several cases to deal with here:
- * - normal (i.e. non-self-refresh)
- * - self-refresh (SR) mode
- * - lines are large relative to FIFO size (buffer can hold up to 2)
- * - lines are small relative to FIFO size (buffer can hold more than 2
- * lines), so need to account for TLB latency
- *
- * The normal calculation is:
- * watermark = dotclock * bytes per pixel * latency
- * where latency is platform & configuration dependent (we assume pessimal
- * values here).
- *
- * The SR calculation is:
- * watermark = (trunc(latency/line time)+1) * surface width *
- * bytes per pixel
- * where
- * line time = htotal / dotclock
- * surface width = hdisplay for normal plane and 64 for cursor
- * and latency is assumed to be high, as above.
- *
- * The final value programmed to the register should always be rounded up,
- * and include an extra 2 entries to account for clock crossings.
- *
- * We don't use the sprite, so we can ignore that. And on Crestline we have
- * to set the non-SR watermarks to 8.
- */
-void intel_update_watermarks(struct drm_i915_private *dev_priv)
-{
- if (dev_priv->display.funcs.wm->update_wm)
- dev_priv->display.funcs.wm->update_wm(dev_priv);
-}
-
-static int intel_compute_pipe_wm(struct intel_atomic_state *state,
- struct intel_crtc *crtc)
-{
- struct drm_i915_private *dev_priv = to_i915(state->base.dev);
- if (dev_priv->display.funcs.wm->compute_pipe_wm)
- return dev_priv->display.funcs.wm->compute_pipe_wm(state, crtc);
- return 0;
-}
-
-static int intel_compute_intermediate_wm(struct intel_atomic_state *state,
- struct intel_crtc *crtc)
-{
- struct drm_i915_private *dev_priv = to_i915(state->base.dev);
- if (!dev_priv->display.funcs.wm->compute_intermediate_wm)
- return 0;
- if (drm_WARN_ON(&dev_priv->drm,
- !dev_priv->display.funcs.wm->compute_pipe_wm))
- return 0;
- return dev_priv->display.funcs.wm->compute_intermediate_wm(state, crtc);
-}
-
-static bool intel_initial_watermarks(struct intel_atomic_state *state,
- struct intel_crtc *crtc)
-{
- struct drm_i915_private *dev_priv = to_i915(state->base.dev);
- if (dev_priv->display.funcs.wm->initial_watermarks) {
- dev_priv->display.funcs.wm->initial_watermarks(state, crtc);
- return true;
- }
- return false;
-}
-
-static void intel_atomic_update_watermarks(struct intel_atomic_state *state,
- struct intel_crtc *crtc)
-{
- struct drm_i915_private *dev_priv = to_i915(state->base.dev);
- if (dev_priv->display.funcs.wm->atomic_update_watermarks)
- dev_priv->display.funcs.wm->atomic_update_watermarks(state, crtc);
-}
-
-static void intel_optimize_watermarks(struct intel_atomic_state *state,
- struct intel_crtc *crtc)
-{
- struct drm_i915_private *dev_priv = to_i915(state->base.dev);
- if (dev_priv->display.funcs.wm->optimize_watermarks)
- dev_priv->display.funcs.wm->optimize_watermarks(state, crtc);
-}
-
-static int intel_compute_global_watermarks(struct intel_atomic_state *state)
-{
- struct drm_i915_private *dev_priv = to_i915(state->base.dev);
- if (dev_priv->display.funcs.wm->compute_global_watermarks)
- return dev_priv->display.funcs.wm->compute_global_watermarks(state);
- return 0;
-}
-
/* returns HPLL frequency in kHz */
int vlv_get_hpll_vco(struct drm_i915_private *dev_priv)
{