diff options
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 46 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_drv.h | 1 |
2 files changed, 42 insertions, 5 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 320c696374a..cfe9e7093b2 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -6557,21 +6557,57 @@ static void hsw_package_c8_gpu_busy(struct drm_i915_private *dev_priv) } } +#define for_each_power_domain(domain, mask) \ + for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++) \ + if ((1 << (domain)) & (mask)) + +static unsigned long get_pipe_power_domains(struct drm_device *dev, + enum pipe pipe, bool pfit_enabled) +{ + unsigned long mask; + enum transcoder transcoder; + + transcoder = intel_pipe_to_cpu_transcoder(dev->dev_private, pipe); + + mask = BIT(POWER_DOMAIN_PIPE(pipe)); + mask |= BIT(POWER_DOMAIN_TRANSCODER(transcoder)); + if (pfit_enabled) + mask |= BIT(POWER_DOMAIN_PIPE_PANEL_FITTER(pipe)); + + return mask; +} + static void modeset_update_power_wells(struct drm_device *dev) { - bool enable = false; + unsigned long pipe_domains[I915_MAX_PIPES] = { 0, }; struct intel_crtc *crtc; + /* + * First get all needed power domains, then put all unneeded, to avoid + * any unnecessary toggling of the power wells. + */ list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) { + enum intel_display_power_domain domain; + if (!crtc->base.enabled) continue; - if (crtc->pipe != PIPE_A || crtc->config.pch_pfit.enabled || - crtc->config.cpu_transcoder != TRANSCODER_EDP) - enable = true; + pipe_domains[crtc->pipe] = get_pipe_power_domains(dev, + crtc->pipe, + crtc->config.pch_pfit.enabled); + + for_each_power_domain(domain, pipe_domains[crtc->pipe]) + intel_display_power_get(dev, domain); } - intel_set_power_well(dev, enable); + list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) { + enum intel_display_power_domain domain; + + for_each_power_domain(domain, crtc->enabled_power_domains) + intel_display_power_put(dev, domain); + + crtc->enabled_power_domains = pipe_domains[crtc->pipe]; + } } static void haswell_modeset_global_resources(struct drm_device *dev) diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index e33f387d418..af1553ca0f4 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -326,6 +326,7 @@ struct intel_crtc { * some outputs connected to this crtc. */ bool active; + unsigned long enabled_power_domains; bool eld_vld; bool primary_enabled; /* is the primary plane (partially) visible? */ bool lowfreq_avail; |