From 7d9ae6332e77c1dd57cd5679a27d6690d2e8215d Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Fri, 15 Oct 2021 10:16:21 +0300 Subject: [PATCH] drm/i915: Extract ilk_pch_get_config() MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Pull the ilk+ PCH state readout into its own function and relocate to the appropriate file. The clock readout parts are perhaps a bit iffy since we depend on the gmch DPLL readout code. But we can think about the clock readout big picture later. Cc: Dave Airlie Cc: Jani Nikula Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20211015071625.593-6-ville.syrjala@linux.intel.com Reviewed-by: Dave Airlie --- drivers/gpu/drm/i915/display/intel_display.c | 72 ++---------------------- drivers/gpu/drm/i915/display/intel_display.h | 3 +- drivers/gpu/drm/i915/display/intel_pch_display.c | 68 ++++++++++++++++++++++ drivers/gpu/drm/i915/display/intel_pch_display.h | 1 + 4 files changed, 75 insertions(+), 69 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 4824981..9bac741 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -111,11 +111,6 @@ #include "skl_universal_plane.h" #include "vlv_sideband.h" -static void i9xx_crtc_clock_get(struct intel_crtc *crtc, - struct intel_crtc_state *pipe_config); -static void ilk_pch_clock_get(struct intel_crtc *crtc, - struct intel_crtc_state *pipe_config); - static void intel_set_transcoder_timings(const struct intel_crtc_state *crtc_state); static void intel_set_pipe_src_size(const struct intel_crtc_state *crtc_state); static void intel_cpu_transcoder_set_m_n(const struct intel_crtc_state *crtc_state, @@ -4226,50 +4221,9 @@ static bool ilk_get_pipe_config(struct intel_crtc *crtc, i9xx_get_pipe_color_config(pipe_config); intel_color_get_config(pipe_config); - if (intel_de_read(dev_priv, PCH_TRANSCONF(crtc->pipe)) & TRANS_ENABLE) { - struct intel_shared_dpll *pll; - enum intel_dpll_id pll_id; - bool pll_active; - - pipe_config->has_pch_encoder = true; - - tmp = intel_de_read(dev_priv, FDI_RX_CTL(crtc->pipe)); - pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >> - FDI_DP_PORT_WIDTH_SHIFT) + 1; - - ilk_get_fdi_m_n_config(crtc, pipe_config); - - if (HAS_PCH_IBX(dev_priv)) { - /* - * The pipe->pch transcoder and pch transcoder->pll - * mapping is fixed. - */ - pll_id = (enum intel_dpll_id) crtc->pipe; - } else { - tmp = intel_de_read(dev_priv, PCH_DPLL_SEL); - if (tmp & TRANS_DPLLB_SEL(crtc->pipe)) - pll_id = DPLL_ID_PCH_PLL_B; - else - pll_id= DPLL_ID_PCH_PLL_A; - } - - pipe_config->shared_dpll = - intel_get_shared_dpll_by_id(dev_priv, pll_id); - pll = pipe_config->shared_dpll; - - pll_active = intel_dpll_get_hw_state(dev_priv, pll, - &pipe_config->dpll_hw_state); - drm_WARN_ON(dev, !pll_active); - - tmp = pipe_config->dpll_hw_state.dpll; - pipe_config->pixel_multiplier = - ((tmp & PLL_REF_SDVO_HDMI_MULTIPLIER_MASK) - >> PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT) + 1; + pipe_config->pixel_multiplier = 1; - ilk_pch_clock_get(crtc, pipe_config); - } else { - pipe_config->pixel_multiplier = 1; - } + ilk_pch_get_config(pipe_config); intel_get_transcoder_timings(crtc, pipe_config); intel_get_pipe_src_size(crtc, pipe_config); @@ -4852,8 +4806,8 @@ static int i9xx_pll_refclk(struct drm_device *dev, } /* Returns the clock of the currently programmed mode of the given pipe. */ -static void i9xx_crtc_clock_get(struct intel_crtc *crtc, - struct intel_crtc_state *pipe_config) +void i9xx_crtc_clock_get(struct intel_crtc *crtc, + struct intel_crtc_state *pipe_config) { struct drm_device *dev = crtc->base.dev; struct drm_i915_private *dev_priv = to_i915(dev); @@ -4963,24 +4917,6 @@ int intel_dotclock_calculate(int link_freq, return div_u64(mul_u32_u32(m_n->link_m, link_freq), m_n->link_n); } -static void ilk_pch_clock_get(struct intel_crtc *crtc, - struct intel_crtc_state *pipe_config) -{ - struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); - - /* read out port_clock from the DPLL */ - i9xx_crtc_clock_get(crtc, pipe_config); - - /* - * In case there is an active pipe without active ports, - * we may need some idea for the dotclock anyway. - * Calculate one based on the FDI configuration. - */ - pipe_config->hw.adjusted_mode.crtc_clock = - intel_dotclock_calculate(intel_fdi_link_freq(dev_priv, pipe_config), - &pipe_config->fdi_m_n); -} - /* Returns the currently programmed mode of the given encoder. */ struct drm_display_mode * intel_encoder_current_mode(struct intel_encoder *encoder) diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h index 5bc8d89..c2efba7 100644 --- a/drivers/gpu/drm/i915/display/intel_display.h +++ b/drivers/gpu/drm/i915/display/intel_display.h @@ -586,8 +586,9 @@ void intel_dp_set_m_n(const struct intel_crtc_state *crtc_state, enum link_m_n_set m_n); void ilk_get_fdi_m_n_config(struct intel_crtc *crtc, struct intel_crtc_state *pipe_config); +void i9xx_crtc_clock_get(struct intel_crtc *crtc, + struct intel_crtc_state *pipe_config); int intel_dotclock_calculate(int link_freq, const struct intel_link_m_n *m_n); - bool hsw_crtc_state_ips_capable(const struct intel_crtc_state *crtc_state); void hsw_enable_ips(const struct intel_crtc_state *crtc_state); void hsw_disable_ips(const struct intel_crtc_state *crtc_state); diff --git a/drivers/gpu/drm/i915/display/intel_pch_display.c b/drivers/gpu/drm/i915/display/intel_pch_display.c index b4c6557..13685c1 100644 --- a/drivers/gpu/drm/i915/display/intel_pch_display.c +++ b/drivers/gpu/drm/i915/display/intel_pch_display.c @@ -299,6 +299,74 @@ void ilk_pch_enable(struct intel_atomic_state *state, ilk_enable_pch_transcoder(crtc_state); } +static void ilk_pch_clock_get(struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + + /* read out port_clock from the DPLL */ + i9xx_crtc_clock_get(crtc, crtc_state); + + /* + * In case there is an active pipe without active ports, + * we may need some idea for the dotclock anyway. + * Calculate one based on the FDI configuration. + */ + crtc_state->hw.adjusted_mode.crtc_clock = + intel_dotclock_calculate(intel_fdi_link_freq(dev_priv, crtc_state), + &crtc_state->fdi_m_n); +} + +void ilk_pch_get_config(struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + struct intel_shared_dpll *pll; + enum pipe pipe = crtc->pipe; + enum intel_dpll_id pll_id; + bool pll_active; + u32 tmp; + + if ((intel_de_read(dev_priv, PCH_TRANSCONF(pipe)) & TRANS_ENABLE) == 0) + return; + + crtc_state->has_pch_encoder = true; + + tmp = intel_de_read(dev_priv, FDI_RX_CTL(pipe)); + crtc_state->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >> + FDI_DP_PORT_WIDTH_SHIFT) + 1; + + ilk_get_fdi_m_n_config(crtc, crtc_state); + + if (HAS_PCH_IBX(dev_priv)) { + /* + * The pipe->pch transcoder and pch transcoder->pll + * mapping is fixed. + */ + pll_id = (enum intel_dpll_id) pipe; + } else { + tmp = intel_de_read(dev_priv, PCH_DPLL_SEL); + if (tmp & TRANS_DPLLB_SEL(pipe)) + pll_id = DPLL_ID_PCH_PLL_B; + else + pll_id = DPLL_ID_PCH_PLL_A; + } + + crtc_state->shared_dpll = intel_get_shared_dpll_by_id(dev_priv, pll_id); + pll = crtc_state->shared_dpll; + + pll_active = intel_dpll_get_hw_state(dev_priv, pll, + &crtc_state->dpll_hw_state); + drm_WARN_ON(&dev_priv->drm, !pll_active); + + tmp = crtc_state->dpll_hw_state.dpll; + crtc_state->pixel_multiplier = + ((tmp & PLL_REF_SDVO_HDMI_MULTIPLIER_MASK) + >> PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT) + 1; + + ilk_pch_clock_get(crtc_state); +} + static void lpt_enable_pch_transcoder(struct drm_i915_private *dev_priv, enum transcoder cpu_transcoder) { diff --git a/drivers/gpu/drm/i915/display/intel_pch_display.h b/drivers/gpu/drm/i915/display/intel_pch_display.h index e0ff331..6e834fb 100644 --- a/drivers/gpu/drm/i915/display/intel_pch_display.h +++ b/drivers/gpu/drm/i915/display/intel_pch_display.h @@ -14,6 +14,7 @@ struct intel_crtc_state; void ilk_disable_pch_transcoder(struct intel_crtc *crtc); void ilk_pch_enable(struct intel_atomic_state *state, struct intel_crtc *crtc); +void ilk_pch_get_config(struct intel_crtc_state *crtc_state); void lpt_disable_pch_transcoder(struct drm_i915_private *dev_priv); void lpt_pch_enable(struct intel_atomic_state *state, -- 2.7.4