diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 82298b073b36..378c05b52e37 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -9183,6 +9183,52 @@ verify_shared_dpll_state(struct intel_crtc *crtc, } static void +verify_mpllb_state(struct intel_atomic_state *state, + struct intel_crtc_state *new_crtc_state) +{ + struct drm_i915_private *i915 = to_i915(state->base.dev); + struct intel_mpllb_state mpllb_hw_state = { 0 }; + struct intel_mpllb_state *mpllb_sw_state = &new_crtc_state->mpllb_state; + struct intel_crtc *crtc = to_intel_crtc(new_crtc_state->uapi.crtc); + struct intel_encoder *encoder; + + if (!IS_DG2(i915)) + return; + + if (!new_crtc_state->hw.active) + return; + + encoder = intel_get_crtc_new_encoder(state, new_crtc_state); + intel_mpllb_readout_hw_state(encoder, &mpllb_hw_state); + +#define MPLLB_CHECK(name) do { \ + if (mpllb_sw_state->name != mpllb_hw_state.name) { \ + pipe_config_mismatch(false, crtc, "MPLLB:" __stringify(name), \ + "(expected 0x%08x, found 0x%08x)", \ + mpllb_sw_state->name, \ + mpllb_hw_state.name); \ + } \ +} while (0) + + MPLLB_CHECK(mpllb_cp); + MPLLB_CHECK(mpllb_div); + MPLLB_CHECK(mpllb_div2); + MPLLB_CHECK(mpllb_fracn1); + MPLLB_CHECK(mpllb_fracn2); + MPLLB_CHECK(mpllb_sscen); + MPLLB_CHECK(mpllb_sscstep); + + /* + * ref_control is handled by the hardware/firemware and never + * programmed by the software, but the proper values are supplied + * in the bspec for verification purposes. + */ + MPLLB_CHECK(ref_control); + +#undef MPLLB_CHECK +} + +static void intel_modeset_verify_crtc(struct intel_crtc *crtc, struct intel_atomic_state *state, struct intel_crtc_state *old_crtc_state, @@ -9195,6 +9241,7 @@ intel_modeset_verify_crtc(struct intel_crtc *crtc, verify_connector_state(state, crtc); verify_crtc_state(crtc, old_crtc_state, new_crtc_state); verify_shared_dpll_state(crtc, old_crtc_state, new_crtc_state); + verify_mpllb_state(state, new_crtc_state); } static void |