From eb14cb747bc53465cbc93e54d9f19f49eed2c0c7 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Tue, 10 Sep 2013 17:02:54 +0300 Subject: [PATCH] drm/i915: Add state readout and checking for has_dp_encoder and dp_m_n MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Add functions to read out the CPU and PCH transcoder M/N values, and use them to fill out the pipe config dp_m_n information. And while at it populate has_dp_encoder too. Also refactor ironlake_get_fdi_m_n_config() to simply call the new intel_cpu_transcoder_get_m_n() function. v2: Remember the DDI Signed-off-by: Ville Syrjälä Reviewed-by: Jani Nikula Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_ddi.c | 14 +++++ drivers/gpu/drm/i915/intel_display.c | 76 ++++++++++++++++++++++++---- drivers/gpu/drm/i915/intel_dp.c | 4 ++ drivers/gpu/drm/i915/intel_drv.h | 2 + 4 files changed, 86 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index d5215e2db42c..491899539aa5 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -1285,6 +1285,20 @@ static void intel_ddi_get_config(struct intel_encoder *encoder, default: break; } + + switch (temp & TRANS_DDI_MODE_SELECT_MASK) { + case TRANS_DDI_MODE_SELECT_HDMI: + case TRANS_DDI_MODE_SELECT_DVI: + case TRANS_DDI_MODE_SELECT_FDI: + break; + case TRANS_DDI_MODE_SELECT_DP_SST: + case TRANS_DDI_MODE_SELECT_DP_MST: + pipe_config->has_dp_encoder = true; + intel_dp_get_m_n(intel_crtc, pipe_config); + break; + default: + break; + } } static void intel_ddi_destroy(struct drm_encoder *encoder) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 1f280cc7b1e3..a4f24346d0be 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -5858,20 +5858,64 @@ static int ironlake_crtc_mode_set(struct drm_crtc *crtc, return ret; } -static void ironlake_get_fdi_m_n_config(struct intel_crtc *crtc, - struct intel_crtc_config *pipe_config) +static void intel_pch_transcoder_get_m_n(struct intel_crtc *crtc, + struct intel_link_m_n *m_n) +{ + struct drm_device *dev = crtc->base.dev; + struct drm_i915_private *dev_priv = dev->dev_private; + enum pipe pipe = crtc->pipe; + + m_n->link_m = I915_READ(PCH_TRANS_LINK_M1(pipe)); + m_n->link_n = I915_READ(PCH_TRANS_LINK_N1(pipe)); + m_n->gmch_m = I915_READ(PCH_TRANS_DATA_M1(pipe)) + & ~TU_SIZE_MASK; + m_n->gmch_n = I915_READ(PCH_TRANS_DATA_N1(pipe)); + m_n->tu = ((I915_READ(PCH_TRANS_DATA_M1(pipe)) + & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1; +} + +static void intel_cpu_transcoder_get_m_n(struct intel_crtc *crtc, + enum transcoder transcoder, + struct intel_link_m_n *m_n) { struct drm_device *dev = crtc->base.dev; struct drm_i915_private *dev_priv = dev->dev_private; - enum transcoder transcoder = pipe_config->cpu_transcoder; + enum pipe pipe = crtc->pipe; + + if (INTEL_INFO(dev)->gen >= 5) { + m_n->link_m = I915_READ(PIPE_LINK_M1(transcoder)); + m_n->link_n = I915_READ(PIPE_LINK_N1(transcoder)); + m_n->gmch_m = I915_READ(PIPE_DATA_M1(transcoder)) + & ~TU_SIZE_MASK; + m_n->gmch_n = I915_READ(PIPE_DATA_N1(transcoder)); + m_n->tu = ((I915_READ(PIPE_DATA_M1(transcoder)) + & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1; + } else { + m_n->link_m = I915_READ(PIPE_LINK_M_G4X(pipe)); + m_n->link_n = I915_READ(PIPE_LINK_N_G4X(pipe)); + m_n->gmch_m = I915_READ(PIPE_DATA_M_G4X(pipe)) + & ~TU_SIZE_MASK; + m_n->gmch_n = I915_READ(PIPE_DATA_N_G4X(pipe)); + m_n->tu = ((I915_READ(PIPE_DATA_M_G4X(pipe)) + & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1; + } +} + +void intel_dp_get_m_n(struct intel_crtc *crtc, + struct intel_crtc_config *pipe_config) +{ + if (crtc->config.has_pch_encoder) + intel_pch_transcoder_get_m_n(crtc, &pipe_config->dp_m_n); + else + intel_cpu_transcoder_get_m_n(crtc, pipe_config->cpu_transcoder, + &pipe_config->dp_m_n); +} - pipe_config->fdi_m_n.link_m = I915_READ(PIPE_LINK_M1(transcoder)); - pipe_config->fdi_m_n.link_n = I915_READ(PIPE_LINK_N1(transcoder)); - pipe_config->fdi_m_n.gmch_m = I915_READ(PIPE_DATA_M1(transcoder)) - & ~TU_SIZE_MASK; - pipe_config->fdi_m_n.gmch_n = I915_READ(PIPE_DATA_N1(transcoder)); - pipe_config->fdi_m_n.tu = ((I915_READ(PIPE_DATA_M1(transcoder)) - & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1; +static void ironlake_get_fdi_m_n_config(struct intel_crtc *crtc, + struct intel_crtc_config *pipe_config) +{ + intel_cpu_transcoder_get_m_n(crtc, pipe_config->cpu_transcoder, + &pipe_config->fdi_m_n); } static void ironlake_get_pfit_config(struct intel_crtc *crtc, @@ -8239,6 +8283,11 @@ static void intel_dump_pipe_config(struct intel_crtc *crtc, pipe_config->fdi_m_n.gmch_m, pipe_config->fdi_m_n.gmch_n, pipe_config->fdi_m_n.link_m, pipe_config->fdi_m_n.link_n, pipe_config->fdi_m_n.tu); + DRM_DEBUG_KMS("dp: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n", + pipe_config->has_dp_encoder, + pipe_config->dp_m_n.gmch_m, pipe_config->dp_m_n.gmch_n, + pipe_config->dp_m_n.link_m, pipe_config->dp_m_n.link_n, + pipe_config->dp_m_n.tu); DRM_DEBUG_KMS("requested mode:\n"); drm_mode_debug_printmodeline(&pipe_config->requested_mode); DRM_DEBUG_KMS("adjusted mode:\n"); @@ -8608,6 +8657,13 @@ intel_pipe_config_compare(struct drm_device *dev, PIPE_CONF_CHECK_I(fdi_m_n.link_n); PIPE_CONF_CHECK_I(fdi_m_n.tu); + PIPE_CONF_CHECK_I(has_dp_encoder); + PIPE_CONF_CHECK_I(dp_m_n.gmch_m); + PIPE_CONF_CHECK_I(dp_m_n.gmch_n); + PIPE_CONF_CHECK_I(dp_m_n.link_m); + PIPE_CONF_CHECK_I(dp_m_n.link_n); + PIPE_CONF_CHECK_I(dp_m_n.tu); + PIPE_CONF_CHECK_I(adjusted_mode.crtc_hdisplay); PIPE_CONF_CHECK_I(adjusted_mode.crtc_htotal); PIPE_CONF_CHECK_I(adjusted_mode.crtc_hblank_start); diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 8c70a833950d..9ba697cc1499 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1444,6 +1444,10 @@ static void intel_dp_get_config(struct intel_encoder *encoder, pipe_config->adjusted_mode.flags |= flags; + pipe_config->has_dp_encoder = true; + + intel_dp_get_m_n(crtc, pipe_config); + if (dp_to_dig_port(intel_dp)->port == PORT_A) { if ((I915_READ(DP_A) & DP_PLL_FREQ_MASK) == DP_PLL_FREQ_160MHZ) pipe_config->port_clock = 162000; diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index b6393e2a2a55..f6d5c920f896 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -801,5 +801,7 @@ extern void hsw_pc8_disable_interrupts(struct drm_device *dev); extern void hsw_pc8_restore_interrupts(struct drm_device *dev); extern void intel_aux_display_runtime_get(struct drm_i915_private *dev_priv); extern void intel_aux_display_runtime_put(struct drm_i915_private *dev_priv); +extern void intel_dp_get_m_n(struct intel_crtc *crtc, + struct intel_crtc_config *pipe_config); #endif /* __INTEL_DRV_H__ */ -- 2.39.5