diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 28 |
1 files changed, 21 insertions, 7 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 018fb7222f6..acee1416eb9 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -91,11 +91,11 @@ static int intel_framebuffer_init(struct drm_device *dev, struct intel_framebuffer *ifb, struct drm_mode_fb_cmd2 *mode_cmd, struct drm_i915_gem_object *obj); -static void intel_dp_set_m_n(struct intel_crtc *crtc); static void i9xx_set_pipeconf(struct intel_crtc *intel_crtc); static void intel_set_pipe_timings(struct intel_crtc *intel_crtc); static void intel_cpu_transcoder_set_m_n(struct intel_crtc *crtc, - struct intel_link_m_n *m_n); + struct intel_link_m_n *m_n, + struct intel_link_m_n *m2_n2); static void ironlake_set_pipeconf(struct drm_crtc *crtc); static void haswell_set_pipeconf(struct drm_crtc *crtc); static void intel_set_pipe_csc(struct drm_crtc *crtc); @@ -3980,7 +3980,7 @@ static void ironlake_crtc_enable(struct drm_crtc *crtc) if (intel_crtc->config.has_pch_encoder) { intel_cpu_transcoder_set_m_n(intel_crtc, - &intel_crtc->config.fdi_m_n); + &intel_crtc->config.fdi_m_n, NULL); } ironlake_set_pipeconf(crtc); @@ -4093,7 +4093,7 @@ static void haswell_crtc_enable(struct drm_crtc *crtc) if (intel_crtc->config.has_pch_encoder) { intel_cpu_transcoder_set_m_n(intel_crtc, - &intel_crtc->config.fdi_m_n); + &intel_crtc->config.fdi_m_n, NULL); } haswell_set_pipeconf(crtc); @@ -5509,7 +5509,8 @@ static void intel_pch_transcoder_set_m_n(struct intel_crtc *crtc, } static void intel_cpu_transcoder_set_m_n(struct intel_crtc *crtc, - struct intel_link_m_n *m_n) + struct intel_link_m_n *m_n, + struct intel_link_m_n *m2_n2) { struct drm_device *dev = crtc->base.dev; struct drm_i915_private *dev_priv = dev->dev_private; @@ -5521,6 +5522,18 @@ static void intel_cpu_transcoder_set_m_n(struct intel_crtc *crtc, I915_WRITE(PIPE_DATA_N1(transcoder), m_n->gmch_n); I915_WRITE(PIPE_LINK_M1(transcoder), m_n->link_m); I915_WRITE(PIPE_LINK_N1(transcoder), m_n->link_n); + /* M2_N2 registers to be set only for gen < 8 (M2_N2 available + * for gen < 8) and if DRRS is supported (to make sure the + * registers are not unnecessarily accessed). + */ + if (m2_n2 && INTEL_INFO(dev)->gen < 8 && + crtc->config.has_drrs) { + I915_WRITE(PIPE_DATA_M2(transcoder), + TU_SIZE(m2_n2->tu) | m2_n2->gmch_m); + I915_WRITE(PIPE_DATA_N2(transcoder), m2_n2->gmch_n); + I915_WRITE(PIPE_LINK_M2(transcoder), m2_n2->link_m); + I915_WRITE(PIPE_LINK_N2(transcoder), m2_n2->link_n); + } } else { I915_WRITE(PIPE_DATA_M_G4X(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m); I915_WRITE(PIPE_DATA_N_G4X(pipe), m_n->gmch_n); @@ -5529,12 +5542,13 @@ static void intel_cpu_transcoder_set_m_n(struct intel_crtc *crtc, } } -static void intel_dp_set_m_n(struct intel_crtc *crtc) +void intel_dp_set_m_n(struct intel_crtc *crtc) { if (crtc->config.has_pch_encoder) intel_pch_transcoder_set_m_n(crtc, &crtc->config.dp_m_n); else - intel_cpu_transcoder_set_m_n(crtc, &crtc->config.dp_m_n); + intel_cpu_transcoder_set_m_n(crtc, &crtc->config.dp_m_n, + &crtc->config.dp_m2_n2); } static void vlv_update_pll(struct intel_crtc *crtc) |