From 5da76e94c4b8d40465a907fc3a151051e8021cdc Mon Sep 17 00:00:00 2001 From: Maarten Lankhorst Date: Mon, 1 Jun 2015 12:50:04 +0200 Subject: [PATCH] drm/i915: Implement intel_crtc_control using atomic state, v4 Assume the callers lock everything with drm_modeset_lock_all. This change had to be done after converting suspend/resume to use atomic_state so the atomic state is preserved, otherwise all transitional state is erased. Now all callers of .crtc_enable and .crtc_disable go through atomic modeset! :-D Changes since v1: - Only check for crtc_state->active in valleyview_modeset_global_pipes. - Only check for crtc_state->active in modeset_update_crtc_power_domains. Changes since v2: - Rework on top of the changed patch order. Changes since v3: - Rename intel_crtc_toggle in description to *_control - Change return value to int. - Do not add plane state, should be done implicitly already. Signed-off-by: Maarten Lankhorst Reviewed-by: Matt Roper Signed-off-by: Jani Nikula --- drivers/gpu/drm/i915/intel_display.c | 53 +++++++++++++++++----------- drivers/gpu/drm/i915/intel_drv.h | 2 +- 2 files changed, 33 insertions(+), 22 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index c04bc80d1a65..048a86857d0d 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -6238,38 +6238,49 @@ void intel_display_suspend(struct drm_device *dev) } /* Master function to enable/disable CRTC and corresponding power wells */ -void intel_crtc_control(struct drm_crtc *crtc, bool enable) +int intel_crtc_control(struct drm_crtc *crtc, bool enable) { struct drm_device *dev = crtc->dev; - struct drm_i915_private *dev_priv = dev->dev_private; + struct drm_mode_config *config = &dev->mode_config; + struct drm_modeset_acquire_ctx *ctx = config->acquire_ctx; struct intel_crtc *intel_crtc = to_intel_crtc(crtc); - enum intel_display_power_domain domain; - unsigned long domains; + struct intel_crtc_state *pipe_config; + struct drm_atomic_state *state; + int ret; if (enable == intel_crtc->active) - return; + return 0; if (enable && !crtc->state->enable) - return; + return 0; - crtc->state->active = enable; - if (enable) { - domains = get_crtc_power_domains(crtc); - for_each_power_domain(domain, domains) - intel_display_power_get(dev_priv, domain); - intel_crtc->enabled_power_domains = domains; + /* this function should be called with drm_modeset_lock_all for now */ + if (WARN_ON(!ctx)) + return -EIO; + lockdep_assert_held(&ctx->ww_ctx); - dev_priv->display.crtc_enable(crtc); - intel_crtc_enable_planes(crtc); - } else { - intel_crtc_disable_planes(crtc); - dev_priv->display.crtc_disable(crtc); + state = drm_atomic_state_alloc(dev); + if (WARN_ON(!state)) + return -ENOMEM; - domains = intel_crtc->enabled_power_domains; - for_each_power_domain(domain, domains) - intel_display_power_put(dev_priv, domain); - intel_crtc->enabled_power_domains = 0; + state->acquire_ctx = ctx; + state->allow_modeset = true; + + pipe_config = intel_atomic_get_crtc_state(state, intel_crtc); + if (IS_ERR(pipe_config)) { + ret = PTR_ERR(pipe_config); + goto err; } + pipe_config->base.active = enable; + + ret = intel_set_mode(state); + if (!ret) + return ret; + +err: + DRM_ERROR("Updating crtc active failed with %i\n", ret); + drm_atomic_state_free(state); + return ret; } /** diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 4aa10a5198f6..7f8fa7f026aa 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -990,7 +990,7 @@ void intel_mark_busy(struct drm_device *dev); void intel_mark_idle(struct drm_device *dev); void intel_crtc_restore_mode(struct drm_crtc *crtc); void intel_display_suspend(struct drm_device *dev); -void intel_crtc_control(struct drm_crtc *crtc, bool enable); +int intel_crtc_control(struct drm_crtc *crtc, bool enable); void intel_crtc_update_dpms(struct drm_crtc *crtc); void intel_encoder_destroy(struct drm_encoder *encoder); int intel_connector_init(struct intel_connector *);