diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 36cfca01a36a..046ac1a6f601 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -6714,7 +6714,13 @@ static bool hsw_compute_ips_config(struct intel_crtc_state *crtc_state) if (!hsw_crtc_state_ips_capable(crtc_state)) return false; - if (crtc_state->ips_force_disable) + /* + * When IPS gets enabled, the pipe CRC changes. Since IPS gets + * enabled and disabled dynamically based on package C states, + * user space can't make reliable use of the CRCs, so let's just + * completely disable it. + */ + if (crtc_state->crc_enabled) return false; /* IPS should be fine as long as at least one plane is enabled. */ @@ -11654,7 +11660,7 @@ clear_intel_crtc_state(struct intel_crtc_state *crtc_state) saved_state->shared_dpll = crtc_state->shared_dpll; saved_state->dpll_hw_state = crtc_state->dpll_hw_state; saved_state->pch_pfit.force_thru = crtc_state->pch_pfit.force_thru; - saved_state->ips_force_disable = crtc_state->ips_force_disable; + saved_state->crc_enabled = crtc_state->crc_enabled; if (IS_G4X(dev_priv) || IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) saved_state->wm = crtc_state->wm; |