From ad421372a61a6104f21520845e85ba89d691e783 Mon Sep 17 00:00:00 2001 From: Maarten Lankhorst Date: Mon, 15 Jun 2015 12:33:42 +0200 Subject: [PATCH] drm/i915: Assign a new pll from the crtc check function, v2. It saves another loop over all crtc's in the state, and computing clock is more of a per crtc thing. Signed-off-by: Maarten Lankhorst Reviewed-by: Matt Roper Tested-by(IVB): Matt Roper Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_display.c | 60 ++++++++++++---------------- 1 file changed, 26 insertions(+), 34 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 4b307ec173ef..0576be36cd68 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -11719,11 +11719,12 @@ static int intel_crtc_atomic_check(struct drm_crtc *crtc, struct drm_crtc_state *crtc_state) { struct drm_device *dev = crtc->dev; + struct drm_i915_private *dev_priv = dev->dev_private; struct intel_crtc *intel_crtc = to_intel_crtc(crtc); struct intel_crtc_state *pipe_config = to_intel_crtc_state(crtc_state); struct drm_atomic_state *state = crtc_state->state; - int idx = crtc->base.id; + int ret, idx = crtc->base.id; bool mode_changed = needs_modeset(crtc_state); if (mode_changed && !check_encoder_cloning(state, intel_crtc)) { @@ -11735,6 +11736,15 @@ static int intel_crtc_atomic_check(struct drm_crtc *crtc, "[CRTC:%i] mismatch between state->active(%i) and crtc->active(%i)\n", idx, crtc->state->active, intel_crtc->active); + if (mode_changed && crtc_state->enable && + dev_priv->display.crtc_compute_clock && + !WARN_ON(pipe_config->shared_dpll != DPLL_ID_PRIVATE)) { + ret = dev_priv->display.crtc_compute_clock(intel_crtc, + pipe_config); + if (ret) + return ret; + } + return intel_atomic_setup_scalers(dev, intel_crtc, pipe_config); } @@ -12789,53 +12799,37 @@ static void update_scanline_offset(struct intel_crtc *crtc) crtc->scanline_offset = 1; } -static int intel_modeset_setup_plls(struct drm_atomic_state *state) +static void intel_modeset_clear_plls(struct drm_atomic_state *state) { struct drm_device *dev = state->dev; struct drm_i915_private *dev_priv = to_i915(dev); - unsigned clear_pipes = 0; + struct intel_shared_dpll_config *shared_dpll = NULL; struct intel_crtc *intel_crtc; struct intel_crtc_state *intel_crtc_state; struct drm_crtc *crtc; struct drm_crtc_state *crtc_state; - int ret = 0; int i; if (!dev_priv->display.crtc_compute_clock) - return 0; + return; for_each_crtc_in_state(state, crtc, crtc_state, i) { + int dpll; + intel_crtc = to_intel_crtc(crtc); intel_crtc_state = to_intel_crtc_state(crtc_state); + dpll = intel_crtc_state->shared_dpll; - if (needs_modeset(crtc_state)) { - clear_pipes |= 1 << intel_crtc->pipe; - intel_crtc_state->shared_dpll = DPLL_ID_PRIVATE; - } - } - - if (clear_pipes) { - struct intel_shared_dpll_config *shared_dpll = - intel_atomic_get_shared_dpll_state(state); - - for (i = 0; i < dev_priv->num_shared_dpll; i++) - shared_dpll[i].crtc_mask &= ~clear_pipes; - } - - for_each_crtc_in_state(state, crtc, crtc_state, i) { - if (!needs_modeset(crtc_state) || !crtc_state->enable) + if (!needs_modeset(crtc_state) || dpll == DPLL_ID_PRIVATE) continue; - intel_crtc = to_intel_crtc(crtc); - intel_crtc_state = to_intel_crtc_state(crtc_state); + intel_crtc_state->shared_dpll = DPLL_ID_PRIVATE; - ret = dev_priv->display.crtc_compute_clock(intel_crtc, - intel_crtc_state); - if (ret) - return ret; - } + if (!shared_dpll) + shared_dpll = intel_atomic_get_shared_dpll_state(state); - return ret; + shared_dpll[dpll].crtc_mask &= ~(1 << intel_crtc->pipe); + } } /* @@ -12931,14 +12925,12 @@ static int intel_modeset_checks(struct drm_atomic_state *state) return ret; } - ret = intel_modeset_setup_plls(state); - if (ret) - return ret; + intel_modeset_clear_plls(state); if (IS_HASWELL(dev)) - ret = haswell_mode_set_planes_workaround(state); + return haswell_mode_set_planes_workaround(state); - return ret; + return 0; } static int -- GitLab