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 <jbarnes@virtuousgeek.org> Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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@ -6798,6 +6798,12 @@ intel_modeset_affected_pipes(struct drm_crtc *crtc, unsigned *modeset_pipes,
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*prepare_pipes &= ~(*disable_pipes);
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}
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#define for_each_intel_crtc_masked(dev, mask, intel_crtc) \
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list_for_each_entry((intel_crtc), \
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&(dev)->mode_config.crtc_list, \
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base.head) \
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if (mask & (1 <<(intel_crtc)->pipe)) \
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bool intel_set_mode(struct drm_crtc *crtc,
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struct drm_display_mode *mode,
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int x, int y, struct drm_framebuffer *fb)
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@ -6807,73 +6813,92 @@ bool intel_set_mode(struct drm_crtc *crtc,
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struct drm_display_mode *adjusted_mode, saved_mode, saved_hwmode;
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struct drm_encoder_helper_funcs *encoder_funcs;
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struct drm_encoder *encoder;
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unsigned disable_pipe, prepare_pipes, modeset_pipes;
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struct intel_crtc *intel_crtc;
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unsigned disable_pipes, prepare_pipes, modeset_pipes;
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bool ret = true;
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intel_modeset_affected_pipes(crtc, &modeset_pipes,
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&prepare_pipes, &disable_pipe);
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&prepare_pipes, &disable_pipes);
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DRM_DEBUG_KMS("set mode pipe masks: modeset: %x, prepare: %x, disable: %x\n",
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modeset_pipes, prepare_pipes, disable_pipes);
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intel_modeset_commit_output_state(dev);
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crtc->enabled = drm_helper_crtc_in_use(crtc);
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if (!crtc->enabled) {
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drm_helper_disable_unused_functions(dev);
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return true;
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}
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for_each_intel_crtc_masked(dev, disable_pipes, intel_crtc)
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drm_helper_disable_unused_functions(dev);
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saved_hwmode = crtc->hwmode;
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saved_mode = crtc->mode;
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adjusted_mode = intel_modeset_adjusted_mode(crtc, mode);
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if (IS_ERR(adjusted_mode)) {
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return false;
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/* Hack: Because we don't (yet) support global modeset on multiple
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* crtcs, we don't keep track of the new mode for more than one crtc.
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* Hence simply check whether any bit is set in modeset_pipes in all the
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* pieces of code that are not yet converted to deal with mutliple crtcs
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* changing their mode at the same time. */
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adjusted_mode = NULL;
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if (modeset_pipes) {
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adjusted_mode = intel_modeset_adjusted_mode(crtc, mode);
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if (IS_ERR(adjusted_mode)) {
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return false;
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}
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intel_crtc_prepare_encoders(dev);
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}
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intel_crtc_prepare_encoders(dev);
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for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc)
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dev_priv->display.crtc_disable(&intel_crtc->base);
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dev_priv->display.crtc_disable(crtc);
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crtc->mode = *mode;
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if (modeset_pipes) {
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crtc->mode = *mode;
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crtc->x = x;
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crtc->y = y;
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}
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/* Set up the DPLL and any encoders state that needs to adjust or depend
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* on the DPLL.
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*/
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ret = !intel_crtc_mode_set(crtc, mode, adjusted_mode, x, y, fb);
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if (!ret)
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goto done;
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for_each_intel_crtc_masked(dev, modeset_pipes, intel_crtc) {
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ret = !intel_crtc_mode_set(&intel_crtc->base,
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mode, adjusted_mode,
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x, y, fb);
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if (!ret)
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goto done;
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list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
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list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
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if (encoder->crtc != crtc)
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continue;
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if (encoder->crtc != &intel_crtc->base)
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continue;
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DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n",
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encoder->base.id, drm_get_encoder_name(encoder),
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mode->base.id, mode->name);
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encoder_funcs = encoder->helper_private;
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encoder_funcs->mode_set(encoder, mode, adjusted_mode);
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DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n",
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encoder->base.id, drm_get_encoder_name(encoder),
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mode->base.id, mode->name);
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encoder_funcs = encoder->helper_private;
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encoder_funcs->mode_set(encoder, mode, adjusted_mode);
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}
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}
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crtc->x = x;
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crtc->y = y;
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/* Now enable the clocks, plane, pipe, and connectors that we set up. */
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dev_priv->display.crtc_enable(crtc);
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for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc)
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dev_priv->display.crtc_enable(&intel_crtc->base);
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/* Store real post-adjustment hardware mode. */
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crtc->hwmode = *adjusted_mode;
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if (modeset_pipes) {
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/* Store real post-adjustment hardware mode. */
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crtc->hwmode = *adjusted_mode;
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/* Calculate and store various constants which
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* are later needed by vblank and swap-completion
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* timestamping. They are derived from true hwmode.
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*/
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drm_calc_timestamping_constants(crtc);
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/* Calculate and store various constants which
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* are later needed by vblank and swap-completion
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* timestamping. They are derived from true hwmode.
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*/
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drm_calc_timestamping_constants(crtc);
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}
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/* FIXME: add subpixel order */
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done:
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drm_mode_destroy(dev, adjusted_mode);
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if (!ret) {
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if (!ret && crtc->enabled) {
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crtc->hwmode = saved_hwmode;
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crtc->mode = saved_mode;
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}
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@ -6881,6 +6906,8 @@ done:
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return ret;
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}
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#undef for_each_intel_crtc_masked
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static void intel_set_config_free(struct intel_set_config *config)
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{
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if (!config)
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