From 25c5b2665fe4cc5a93edd29b62e7c05c15dddd26 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Sun, 8 Jul 2012 22:08:04 +0200 Subject: [PATCH] drm/i915: implement new set_mode code flow ... using the pipe masks from the previous patch. Well, not quite: - We still need to call the disable_unused_functions helper, until we've moved the call to commit_output_state further down and adjusted intel_crtc_disable a bit. The next patch will do that. - Because we don't support (yet) mode changes on more than one crtc at a time, some of the modeset_pipes checks are a bit hackish - but that only needs fixing once we incorporate global modeset support. Reviewed-by: Jesse Barnes Signed-Off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_display.c | 99 ++++++++++++++++++---------- 1 file changed, 63 insertions(+), 36 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index d354aa0b8eed..16cbf9554216 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -6798,6 +6798,12 @@ intel_modeset_affected_pipes(struct drm_crtc *crtc, unsigned *modeset_pipes, *prepare_pipes &= ~(*disable_pipes); } +#define for_each_intel_crtc_masked(dev, mask, intel_crtc) \ + list_for_each_entry((intel_crtc), \ + &(dev)->mode_config.crtc_list, \ + base.head) \ + if (mask & (1 <<(intel_crtc)->pipe)) \ + bool intel_set_mode(struct drm_crtc *crtc, struct drm_display_mode *mode, int x, int y, struct drm_framebuffer *fb) @@ -6807,73 +6813,92 @@ bool intel_set_mode(struct drm_crtc *crtc, struct drm_display_mode *adjusted_mode, saved_mode, saved_hwmode; struct drm_encoder_helper_funcs *encoder_funcs; struct drm_encoder *encoder; - unsigned disable_pipe, prepare_pipes, modeset_pipes; + struct intel_crtc *intel_crtc; + unsigned disable_pipes, prepare_pipes, modeset_pipes; bool ret = true; intel_modeset_affected_pipes(crtc, &modeset_pipes, - &prepare_pipes, &disable_pipe); + &prepare_pipes, &disable_pipes); + + DRM_DEBUG_KMS("set mode pipe masks: modeset: %x, prepare: %x, disable: %x\n", + modeset_pipes, prepare_pipes, disable_pipes); intel_modeset_commit_output_state(dev); crtc->enabled = drm_helper_crtc_in_use(crtc); - if (!crtc->enabled) { - drm_helper_disable_unused_functions(dev); - return true; - } + for_each_intel_crtc_masked(dev, disable_pipes, intel_crtc) + drm_helper_disable_unused_functions(dev); saved_hwmode = crtc->hwmode; saved_mode = crtc->mode; - adjusted_mode = intel_modeset_adjusted_mode(crtc, mode); - if (IS_ERR(adjusted_mode)) { - return false; - } + /* Hack: Because we don't (yet) support global modeset on multiple + * crtcs, we don't keep track of the new mode for more than one crtc. + * Hence simply check whether any bit is set in modeset_pipes in all the + * pieces of code that are not yet converted to deal with mutliple crtcs + * changing their mode at the same time. */ + adjusted_mode = NULL; + if (modeset_pipes) { + adjusted_mode = intel_modeset_adjusted_mode(crtc, mode); + if (IS_ERR(adjusted_mode)) { + return false; + } - intel_crtc_prepare_encoders(dev); + intel_crtc_prepare_encoders(dev); + } - dev_priv->display.crtc_disable(crtc); + for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc) + dev_priv->display.crtc_disable(&intel_crtc->base); - crtc->mode = *mode; + if (modeset_pipes) { + crtc->mode = *mode; + crtc->x = x; + crtc->y = y; + } /* Set up the DPLL and any encoders state that needs to adjust or depend * on the DPLL. */ - ret = !intel_crtc_mode_set(crtc, mode, adjusted_mode, x, y, fb); - if (!ret) - goto done; + for_each_intel_crtc_masked(dev, modeset_pipes, intel_crtc) { + ret = !intel_crtc_mode_set(&intel_crtc->base, + mode, adjusted_mode, + x, y, fb); + if (!ret) + goto done; - list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { + list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { - if (encoder->crtc != crtc) - continue; + if (encoder->crtc != &intel_crtc->base) + continue; - DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n", - encoder->base.id, drm_get_encoder_name(encoder), - mode->base.id, mode->name); - encoder_funcs = encoder->helper_private; - encoder_funcs->mode_set(encoder, mode, adjusted_mode); + DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n", + encoder->base.id, drm_get_encoder_name(encoder), + mode->base.id, mode->name); + encoder_funcs = encoder->helper_private; + encoder_funcs->mode_set(encoder, mode, adjusted_mode); + } } - crtc->x = x; - crtc->y = y; - /* Now enable the clocks, plane, pipe, and connectors that we set up. */ - dev_priv->display.crtc_enable(crtc); + for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc) + dev_priv->display.crtc_enable(&intel_crtc->base); - /* Store real post-adjustment hardware mode. */ - crtc->hwmode = *adjusted_mode; + if (modeset_pipes) { + /* Store real post-adjustment hardware mode. */ + crtc->hwmode = *adjusted_mode; - /* Calculate and store various constants which - * are later needed by vblank and swap-completion - * timestamping. They are derived from true hwmode. - */ - drm_calc_timestamping_constants(crtc); + /* Calculate and store various constants which + * are later needed by vblank and swap-completion + * timestamping. They are derived from true hwmode. + */ + drm_calc_timestamping_constants(crtc); + } /* FIXME: add subpixel order */ done: drm_mode_destroy(dev, adjusted_mode); - if (!ret) { + if (!ret && crtc->enabled) { crtc->hwmode = saved_hwmode; crtc->mode = saved_mode; } @@ -6881,6 +6906,8 @@ done: return ret; } +#undef for_each_intel_crtc_masked + static void intel_set_config_free(struct intel_set_config *config) { if (!config) -- 2.20.1