diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 566a7d2feb1a7abcc2c49717c441f48f7c66a3bd..9af433a7cbf198ae8d9501cd2b6e6e00ab7e6f6a 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -126,6 +126,101 @@ static void ilk_pfit_enable(const struct intel_crtc_state *crtc_state); static void intel_modeset_setup_hw_state(struct drm_device *dev, struct drm_modeset_acquire_ctx *ctx); +/** + * 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. + */ +static void intel_update_watermarks(struct drm_i915_private *dev_priv) +{ + if (dev_priv->display.update_wm) + dev_priv->display.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.compute_pipe_wm) + return dev_priv->display.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.compute_intermediate_wm) + return 0; + if (drm_WARN_ON(&dev_priv->drm, + !dev_priv->display.compute_pipe_wm)) + return 0; + return dev_priv->display.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.initial_watermarks) { + dev_priv->display.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.atomic_update_watermarks) + dev_priv->display.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.optimize_watermarks) + dev_priv->display.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.compute_global_watermarks) + return dev_priv->display.compute_global_watermarks(state); + return 0; +} + /* returns HPLL frequency in kHz */ int vlv_get_hpll_vco(struct drm_i915_private *dev_priv) { @@ -2537,10 +2632,9 @@ static void intel_pre_plane_update(struct intel_atomic_state *state, * we'll continue to update watermarks the old way, if flags tell * us to. */ - if (dev_priv->display.initial_watermarks) - dev_priv->display.initial_watermarks(state, crtc); - else if (new_crtc_state->update_wm_pre) - intel_update_watermarks(dev_priv); + if (!intel_initial_watermarks(state, crtc)) + if (new_crtc_state->update_wm_pre) + intel_update_watermarks(dev_priv); } /* @@ -2912,8 +3006,7 @@ static void ilk_crtc_enable(struct intel_atomic_state *state, /* update DSPCNTR to configure gamma for pipe bottom color */ intel_disable_primary_plane(new_crtc_state); - if (dev_priv->display.initial_watermarks) - dev_priv->display.initial_watermarks(state, crtc); + intel_initial_watermarks(state, crtc); intel_enable_transcoder(new_crtc_state); if (new_crtc_state->has_pch_encoder) @@ -3123,8 +3216,7 @@ static void hsw_crtc_enable(struct intel_atomic_state *state, if (DISPLAY_VER(dev_priv) >= 11) icl_set_pipe_chicken(new_crtc_state); - if (dev_priv->display.initial_watermarks) - dev_priv->display.initial_watermarks(state, crtc); + intel_initial_watermarks(state, crtc); if (DISPLAY_VER(dev_priv) >= 11) { const struct intel_dbuf_state *dbuf_state = @@ -3541,7 +3633,7 @@ static void valleyview_crtc_enable(struct intel_atomic_state *state, /* update DSPCNTR to configure gamma for pipe bottom color */ intel_disable_primary_plane(new_crtc_state); - dev_priv->display.initial_watermarks(state, crtc); + intel_initial_watermarks(state, crtc); intel_enable_transcoder(new_crtc_state); intel_crtc_vblank_on(new_crtc_state); @@ -3584,9 +3676,7 @@ static void i9xx_crtc_enable(struct intel_atomic_state *state, /* update DSPCNTR to configure gamma for pipe bottom color */ intel_disable_primary_plane(new_crtc_state); - if (dev_priv->display.initial_watermarks) - dev_priv->display.initial_watermarks(state, crtc); - else + if (!intel_initial_watermarks(state, crtc)) intel_update_watermarks(dev_priv); intel_enable_transcoder(new_crtc_state); @@ -6765,32 +6855,23 @@ static int intel_crtc_atomic_check(struct intel_atomic_state *state, return ret; } - if (dev_priv->display.compute_pipe_wm) { - ret = dev_priv->display.compute_pipe_wm(state, crtc); - if (ret) { - drm_dbg_kms(&dev_priv->drm, - "Target pipe watermarks are invalid\n"); - return ret; - } - + ret = intel_compute_pipe_wm(state, crtc); + if (ret) { + drm_dbg_kms(&dev_priv->drm, + "Target pipe watermarks are invalid\n"); + return ret; } - if (dev_priv->display.compute_intermediate_wm) { - if (drm_WARN_ON(&dev_priv->drm, - !dev_priv->display.compute_pipe_wm)) - return 0; - - /* - * Calculate 'intermediate' watermarks that satisfy both the - * old state and the new state. We can program these - * immediately. - */ - ret = dev_priv->display.compute_intermediate_wm(state, crtc); - if (ret) { - drm_dbg_kms(&dev_priv->drm, - "No valid intermediate pipe watermarks are possible\n"); - return ret; - } + /* + * Calculate 'intermediate' watermarks that satisfy both the + * old state and the new state. We can program these + * immediately. + */ + ret = intel_compute_intermediate_wm(state, crtc); + if (ret) { + drm_dbg_kms(&dev_priv->drm, + "No valid intermediate pipe watermarks are possible\n"); + return ret; } if (DISPLAY_VER(dev_priv) >= 9) { @@ -8883,23 +8964,6 @@ static int intel_modeset_checks(struct intel_atomic_state *state) return 0; } -/* - * Handle calculation of various watermark data at the end of the atomic check - * phase. The code here should be run after the per-crtc and per-plane 'check' - * handlers to ensure that all derived state has been updated. - */ -static int calc_watermark_data(struct intel_atomic_state *state) -{ - struct drm_device *dev = state->base.dev; - struct drm_i915_private *dev_priv = to_i915(dev); - - /* Is there platform-specific watermark information to calculate? */ - if (dev_priv->display.compute_global_watermarks) - return dev_priv->display.compute_global_watermarks(state); - - return 0; -} - static void intel_crtc_check_fastset(const struct intel_crtc_state *old_crtc_state, struct intel_crtc_state *new_crtc_state) { @@ -9546,7 +9610,7 @@ static int intel_atomic_check(struct drm_device *dev, goto fail; intel_fbc_choose_crtc(dev_priv, state); - ret = calc_watermark_data(state); + ret = intel_compute_global_watermarks(state); if (ret) goto fail; @@ -9720,8 +9784,7 @@ static void commit_pipe_pre_planes(struct intel_atomic_state *state, intel_psr2_program_trans_man_trk_ctl(new_crtc_state); - if (dev_priv->display.atomic_update_watermarks) - dev_priv->display.atomic_update_watermarks(state, crtc); + intel_atomic_update_watermarks(state, crtc); } static void commit_pipe_post_planes(struct intel_atomic_state *state, @@ -9848,9 +9911,8 @@ static void intel_old_crtc_state_disables(struct intel_atomic_state *state, /* FIXME unify this for all platforms */ if (!new_crtc_state->hw.active && - !HAS_GMCH(dev_priv) && - dev_priv->display.initial_watermarks) - dev_priv->display.initial_watermarks(state, crtc); + !HAS_GMCH(dev_priv)) + intel_initial_watermarks(state, crtc); } static void intel_commit_modeset_disables(struct intel_atomic_state *state) @@ -10273,8 +10335,7 @@ static void intel_atomic_commit_tail(struct intel_atomic_state *state) if (DISPLAY_VER(dev_priv) == 2 && planes_enabling(old_crtc_state, new_crtc_state)) intel_set_cpu_fifo_underrun_reporting(dev_priv, crtc->pipe, true); - if (dev_priv->display.optimize_watermarks) - dev_priv->display.optimize_watermarks(state, crtc); + intel_optimize_watermarks(state, crtc); } intel_dbuf_post_plane_update(state); @@ -11376,7 +11437,7 @@ static void sanitize_watermarks(struct drm_i915_private *dev_priv) /* Write calculated watermark values back */ for_each_new_intel_crtc_in_state(intel_state, crtc, crtc_state, i) { crtc_state->wm.need_postvbl_update = true; - dev_priv->display.optimize_watermarks(intel_state, crtc); + intel_optimize_watermarks(intel_state, crtc); to_intel_crtc_state(crtc->base.state)->wm = crtc_state->wm; } diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 226f456cde3afa4f23df8bb4ad0875fbe312f956..11c9df62391dfda969ec13e949c77185b98d7086 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -7130,45 +7130,6 @@ void ilk_wm_get_hw_state(struct drm_i915_private *dev_priv) !(intel_uncore_read(&dev_priv->uncore, DISP_ARB_CTL) & DISP_FBC_WM_DIS); } -/** - * 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.update_wm) - dev_priv->display.update_wm(dev_priv); -} - void intel_enable_ipc(struct drm_i915_private *dev_priv) { u32 val; diff --git a/drivers/gpu/drm/i915/intel_pm.h b/drivers/gpu/drm/i915/intel_pm.h index 99bce0b4f5fb42f41f8cb71e9c7115fe5ac61d00..990cdcaf85cec5d9c90c507bbc5d7dfdf2af82bc 100644 --- a/drivers/gpu/drm/i915/intel_pm.h +++ b/drivers/gpu/drm/i915/intel_pm.h @@ -29,7 +29,6 @@ struct skl_wm_level; void intel_init_clock_gating(struct drm_i915_private *dev_priv); void intel_suspend_hw(struct drm_i915_private *dev_priv); int ilk_wm_max_level(const struct drm_i915_private *dev_priv); -void intel_update_watermarks(struct drm_i915_private *dev_priv); void intel_init_pm(struct drm_i915_private *dev_priv); void intel_init_clock_gating_hooks(struct drm_i915_private *dev_priv); void intel_pm_setup(struct drm_i915_private *dev_priv);