Hi 2013/2/21 Daniel Vetter <daniel.vet...@ffwll.ch>: > Used by SDVO (and hopefully, eventually HDMI, if we ever get around > to fixing up the low dotclock CEA modes ...). > > This required adding a new encoder->mode_set callback to be able to > pass around the intel_crtc_config.
Again, can we please separate the callback in another patch and add some nice documentation explaining what's this callback, why it's called and what's its relationship with the other mode_set callbacks (again, think about future code readers, not people reading the patch)? Also, why not just convert every encoder to this callback right now? The pixel_multiplier part of the patch looks correct. > > Signed-off-by: Daniel Vetter <daniel.vet...@ffwll.ch> > --- > drivers/gpu/drm/i915/intel_display.c | 80 > +++++++++++++++++++----------------- > drivers/gpu/drm/i915/intel_drv.h | 19 ++------- > drivers/gpu/drm/i915/intel_sdvo.c | 39 +++++++++--------- > 3 files changed, 66 insertions(+), 72 deletions(-) > > diff --git a/drivers/gpu/drm/i915/intel_display.c > b/drivers/gpu/drm/i915/intel_display.c > index ad03b7f..3446e2b 100644 > --- a/drivers/gpu/drm/i915/intel_display.c > +++ b/drivers/gpu/drm/i915/intel_display.c > @@ -4280,14 +4280,15 @@ static void i9xx_update_pll_dividers(struct drm_crtc > *crtc, > } > > static void vlv_update_pll(struct drm_crtc *crtc, > - struct drm_display_mode *mode, > - struct drm_display_mode *adjusted_mode, > intel_clock_t *clock, intel_clock_t *reduced_clock, > int num_connectors) > { > struct drm_device *dev = crtc->dev; > struct drm_i915_private *dev_priv = dev->dev_private; > struct intel_crtc *intel_crtc = to_intel_crtc(crtc); > + struct drm_display_mode *adjusted_mode = > + &intel_crtc->config.adjusted_mode; > + struct drm_display_mode *mode = &intel_crtc->config.requested_mode; > int pipe = intel_crtc->pipe; > u32 dpll, mdiv, pdiv; > u32 bestn, bestm1, bestm2, bestp1, bestp2; > @@ -4354,11 +4355,11 @@ static void vlv_update_pll(struct drm_crtc *crtc, > > temp = 0; > if (is_sdvo) { > - temp = intel_mode_get_pixel_multiplier(adjusted_mode); > - if (temp > 1) > - temp = (temp - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT; > - else > - temp = 0; > + temp = 0; > + if (intel_crtc->config.pixel_multiplier > 1) { > + temp = (intel_crtc->config.pixel_multiplier - 1) > + << DPLL_MD_UDI_MULTIPLIER_SHIFT; > + } > } > I915_WRITE(DPLL_MD(pipe), temp); > POSTING_READ(DPLL_MD(pipe)); > @@ -4384,14 +4385,15 @@ static void vlv_update_pll(struct drm_crtc *crtc, > } > > static void i9xx_update_pll(struct drm_crtc *crtc, > - struct drm_display_mode *mode, > - struct drm_display_mode *adjusted_mode, > intel_clock_t *clock, intel_clock_t > *reduced_clock, > int num_connectors) > { > struct drm_device *dev = crtc->dev; > struct drm_i915_private *dev_priv = dev->dev_private; > struct intel_crtc *intel_crtc = to_intel_crtc(crtc); > + struct drm_display_mode *adjusted_mode = > + &intel_crtc->config.adjusted_mode; > + struct drm_display_mode *mode = &intel_crtc->config.requested_mode; > struct intel_encoder *encoder; > int pipe = intel_crtc->pipe; > u32 dpll; > @@ -4408,11 +4410,12 @@ static void i9xx_update_pll(struct drm_crtc *crtc, > dpll |= DPLLB_MODE_LVDS; > else > dpll |= DPLLB_MODE_DAC_SERIAL; > + > if (is_sdvo) { > - int pixel_multiplier = > intel_mode_get_pixel_multiplier(adjusted_mode); > - if (pixel_multiplier > 1) { > - if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) > - dpll |= (pixel_multiplier - 1) << > SDVO_MULTIPLIER_SHIFT_HIRES; > + if ((intel_crtc->config.pixel_multiplier > 1) && > + (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev))) { > + dpll |= (intel_crtc->config.pixel_multiplier - 1) > + << SDVO_MULTIPLIER_SHIFT_HIRES; > } > dpll |= DPLL_DVO_HIGH_SPEED; > } > @@ -4477,11 +4480,11 @@ static void i9xx_update_pll(struct drm_crtc *crtc, > if (INTEL_INFO(dev)->gen >= 4) { > u32 temp = 0; > if (is_sdvo) { > - temp = intel_mode_get_pixel_multiplier(adjusted_mode); > - if (temp > 1) > - temp = (temp - 1) << > DPLL_MD_UDI_MULTIPLIER_SHIFT; > - else > - temp = 0; > + temp = 0; > + if (intel_crtc->config.pixel_multiplier > 1) { > + temp = (intel_crtc->config.pixel_multiplier - > 1) > + << DPLL_MD_UDI_MULTIPLIER_SHIFT; > + } > } > I915_WRITE(DPLL_MD(pipe), temp); > } else { > @@ -4691,11 +4694,11 @@ static int i9xx_crtc_mode_set(struct drm_crtc *crtc, > has_reduced_clock ? &reduced_clock : NULL, > num_connectors); > else if (IS_VALLEYVIEW(dev)) > - vlv_update_pll(crtc, mode, adjusted_mode, &clock, > + vlv_update_pll(crtc, &clock, > has_reduced_clock ? &reduced_clock : NULL, > num_connectors); > else > - i9xx_update_pll(crtc, mode, adjusted_mode, &clock, > + i9xx_update_pll(crtc, &clock, > has_reduced_clock ? &reduced_clock : NULL, > num_connectors); > > @@ -5407,17 +5410,18 @@ int ironlake_get_lanes_required(int target_clock, int > link_bw, int bpp) > return bps / (link_bw * 8) + 1; > } > > -static void ironlake_set_m_n(struct drm_crtc *crtc, > - struct drm_display_mode *mode, > - struct drm_display_mode *adjusted_mode) > +static void ironlake_set_m_n(struct drm_crtc *crtc) > { > struct drm_device *dev = crtc->dev; > struct drm_i915_private *dev_priv = dev->dev_private; > struct intel_crtc *intel_crtc = to_intel_crtc(crtc); > + struct drm_display_mode *adjusted_mode = > + &intel_crtc->config.adjusted_mode; > + struct drm_display_mode *mode = &intel_crtc->config.requested_mode; > enum transcoder cpu_transcoder = intel_crtc->cpu_transcoder; > struct intel_encoder *intel_encoder, *edp_encoder = NULL; > struct intel_link_m_n m_n = {0}; > - int target_clock, pixel_multiplier, lane, link_bw; > + int target_clock, lane, link_bw; > bool is_dp = false, is_cpu_edp = false; > > for_each_encoder_on_crtc(dev, crtc, intel_encoder) { > @@ -5435,7 +5439,6 @@ static void ironlake_set_m_n(struct drm_crtc *crtc, > } > > /* FDI link */ > - pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); > lane = 0; > /* CPU eDP doesn't require FDI link, so just set DP M/N > according to current link config */ > @@ -5466,8 +5469,8 @@ static void ironlake_set_m_n(struct drm_crtc *crtc, > > intel_crtc->fdi_lanes = lane; > > - if (pixel_multiplier > 1) > - link_bw *= pixel_multiplier; > + if (intel_crtc->config.pixel_multiplier > 1) > + link_bw *= intel_crtc->config.pixel_multiplier; > intel_link_compute_m_n(intel_crtc->bpp, lane, target_clock, link_bw, > &m_n); > > I915_WRITE(PIPE_DATA_M1(cpu_transcoder), TU_SIZE(m_n.tu) | > m_n.gmch_m); > @@ -5477,7 +5480,6 @@ static void ironlake_set_m_n(struct drm_crtc *crtc, > } > > static uint32_t ironlake_compute_dpll(struct intel_crtc *intel_crtc, > - struct drm_display_mode *adjusted_mode, > intel_clock_t *clock, u32 fp) > { > struct drm_crtc *crtc = &intel_crtc->base; > @@ -5485,7 +5487,7 @@ static uint32_t ironlake_compute_dpll(struct intel_crtc > *intel_crtc, > struct drm_i915_private *dev_priv = dev->dev_private; > struct intel_encoder *intel_encoder; > uint32_t dpll; > - int factor, pixel_multiplier, num_connectors = 0; > + int factor, num_connectors = 0; > bool is_lvds = false, is_sdvo = false, is_tv = false; > bool is_dp = false, is_cpu_edp = false; > > @@ -5536,9 +5538,9 @@ static uint32_t ironlake_compute_dpll(struct intel_crtc > *intel_crtc, > else > dpll |= DPLLB_MODE_DAC_SERIAL; > if (is_sdvo) { > - pixel_multiplier = > intel_mode_get_pixel_multiplier(adjusted_mode); > - if (pixel_multiplier > 1) { > - dpll |= (pixel_multiplier - 1) << > PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT; > + if (intel_crtc->config.pixel_multiplier > 1) { > + dpll |= (intel_crtc->config.pixel_multiplier - 1) > + << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT; > } > dpll |= DPLL_DVO_HIGH_SPEED; > } > @@ -5642,7 +5644,7 @@ static int ironlake_crtc_mode_set(struct drm_crtc *crtc, > fp2 = reduced_clock.n << 16 | reduced_clock.m1 << 8 | > reduced_clock.m2; > > - dpll = ironlake_compute_dpll(intel_crtc, adjusted_mode, &clock, fp); > + dpll = ironlake_compute_dpll(intel_crtc, &clock, fp); > > DRM_DEBUG_KMS("Mode for pipe %d:\n", pipe); > drm_mode_debug_printmodeline(mode); > @@ -5696,7 +5698,7 @@ static int ironlake_crtc_mode_set(struct drm_crtc *crtc, > > /* Note, this also computes intel_crtc->fdi_lanes which is used below > in > * ironlake_check_fdi_lanes. */ > - ironlake_set_m_n(crtc, mode, adjusted_mode); > + ironlake_set_m_n(crtc); > > fdi_config_ok = ironlake_check_fdi_lanes(intel_crtc); > > @@ -5812,7 +5814,7 @@ static int haswell_crtc_mode_set(struct drm_crtc *crtc, > intel_set_pipe_timings(intel_crtc, mode, adjusted_mode); > > if (!is_dp || is_cpu_edp) > - ironlake_set_m_n(crtc, mode, adjusted_mode); > + ironlake_set_m_n(crtc); > > haswell_set_pipeconf(crtc, adjusted_mode, dither); > > @@ -5865,8 +5867,12 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, > encoder->base.base.id, > drm_get_encoder_name(&encoder->base), > mode->base.id, mode->name); > - encoder_funcs = encoder->base.helper_private; > - encoder_funcs->mode_set(&encoder->base, mode, adjusted_mode); > + if (encoder->mode_set) { > + encoder->mode_set(encoder); > + } else { > + encoder_funcs = encoder->base.helper_private; > + encoder_funcs->mode_set(&encoder->base, mode, > adjusted_mode); > + } > } > > return 0; > diff --git a/drivers/gpu/drm/i915/intel_drv.h > b/drivers/gpu/drm/i915/intel_drv.h > index edafbef..ef5111b 100644 > --- a/drivers/gpu/drm/i915/intel_drv.h > +++ b/drivers/gpu/drm/i915/intel_drv.h > @@ -102,8 +102,6 @@ > #define INTEL_DVO_CHIP_TVOUT 4 > > /* drm_display_mode->private_flags */ > -#define INTEL_MODE_PIXEL_MULTIPLIER_SHIFT (0x0) > -#define INTEL_MODE_PIXEL_MULTIPLIER_MASK (0xf << > INTEL_MODE_PIXEL_MULTIPLIER_SHIFT) > #define INTEL_MODE_DP_FORCE_6BPC (0x10) > /* > * Set when limited 16-235 (as opposed to full 0-255) RGB color range is > @@ -111,20 +109,6 @@ > */ > #define INTEL_MODE_LIMITED_COLOR_RANGE (0x40) > > -static inline void > -intel_mode_set_pixel_multiplier(struct drm_display_mode *mode, > - int multiplier) > -{ > - mode->clock *= multiplier; > - mode->private_flags |= multiplier; > -} > - > -static inline int > -intel_mode_get_pixel_multiplier(const struct drm_display_mode *mode) > -{ > - return (mode->private_flags & INTEL_MODE_PIXEL_MULTIPLIER_MASK) >> > INTEL_MODE_PIXEL_MULTIPLIER_SHIFT; > -} > - > struct intel_framebuffer { > struct drm_framebuffer base; > struct drm_i915_gem_object *obj; > @@ -159,6 +143,7 @@ struct intel_encoder { > void (*pre_pll_enable)(struct intel_encoder *); > void (*pre_enable)(struct intel_encoder *); > void (*enable)(struct intel_encoder *); > + void (*mode_set)(struct intel_encoder *intel_encoder); > void (*disable)(struct intel_encoder *); > void (*post_disable)(struct intel_encoder *); > /* Read out the current hw state of this connector, returning true if > @@ -204,6 +189,8 @@ struct intel_crtc_config { > * changes the crtc timings in the mode to prevent the crtc fixup from > * overwriting them. Currently only lvds needs that. */ > bool timings_set; > + /* Used by SDVO (and if we ever fix it, HDMI). */ > + unsigned pixel_multiplier; > }; > > struct intel_crtc { > diff --git a/drivers/gpu/drm/i915/intel_sdvo.c > b/drivers/gpu/drm/i915/intel_sdvo.c > index 33b46d9..06bb2e1 100644 > --- a/drivers/gpu/drm/i915/intel_sdvo.c > +++ b/drivers/gpu/drm/i915/intel_sdvo.c > @@ -788,7 +788,6 @@ static void intel_sdvo_get_dtd_from_mode(struct > intel_sdvo_dtd *dtd, > v_sync_offset = mode->vsync_start - mode->vdisplay; > > mode_clock = mode->clock; > - mode_clock /= intel_mode_get_pixel_multiplier(mode) ?: 1; > mode_clock /= 10; > dtd->part1.clock = mode_clock; > > @@ -1039,12 +1038,12 @@ intel_sdvo_get_preferred_input_mode(struct intel_sdvo > *intel_sdvo, > return true; > } > > -static bool intel_sdvo_mode_fixup(struct drm_encoder *encoder, > - const struct drm_display_mode *mode, > - struct drm_display_mode *adjusted_mode) > +static bool intel_sdvo_compute_config(struct intel_encoder *encoder, > + struct intel_crtc_config *pipe_config) > { > - struct intel_sdvo *intel_sdvo = to_intel_sdvo(encoder); > - int multiplier; > + struct intel_sdvo *intel_sdvo = to_intel_sdvo(&encoder->base); > + struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode; > + struct drm_display_mode *mode = &pipe_config->requested_mode; > > /* We need to construct preferred input timings based on our > * output timings. To do that, we have to set the output > @@ -1071,8 +1070,9 @@ static bool intel_sdvo_mode_fixup(struct drm_encoder > *encoder, > /* Make the CRTC code factor in the SDVO pixel multiplier. The > * SDVO device will factor out the multiplier during mode_set. > */ > - multiplier = intel_sdvo_get_pixel_multiplier(adjusted_mode); > - intel_mode_set_pixel_multiplier(adjusted_mode, multiplier); > + pipe_config->pixel_multiplier = > + intel_sdvo_get_pixel_multiplier(adjusted_mode); > + adjusted_mode->clock *= pipe_config->pixel_multiplier; > > if (intel_sdvo->color_range_auto) { > /* See CEA-861-E - 5.1 Default Encoding Parameters */ > @@ -1089,19 +1089,19 @@ static bool intel_sdvo_mode_fixup(struct drm_encoder > *encoder, > return true; > } > > -static void intel_sdvo_mode_set(struct drm_encoder *encoder, > - struct drm_display_mode *mode, > - struct drm_display_mode *adjusted_mode) > +static void intel_sdvo_mode_set(struct intel_encoder *intel_encoder) > { > - struct drm_device *dev = encoder->dev; > + struct drm_device *dev = intel_encoder->base.dev; > struct drm_i915_private *dev_priv = dev->dev_private; > - struct drm_crtc *crtc = encoder->crtc; > + struct drm_crtc *crtc = intel_encoder->base.crtc; > struct intel_crtc *intel_crtc = to_intel_crtc(crtc); > - struct intel_sdvo *intel_sdvo = to_intel_sdvo(encoder); > + struct drm_display_mode *adjusted_mode = > + &intel_crtc->config.adjusted_mode; > + struct drm_display_mode *mode = &intel_crtc->config.requested_mode; > + struct intel_sdvo *intel_sdvo = to_intel_sdvo(&intel_encoder->base); > u32 sdvox; > struct intel_sdvo_in_out_map in_out; > struct intel_sdvo_dtd input_dtd, output_dtd; > - int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); > int rate; > > if (!mode) > @@ -1161,7 +1161,7 @@ static void intel_sdvo_mode_set(struct drm_encoder > *encoder, > DRM_INFO("Setting input timings on %s failed\n", > SDVO_NAME(intel_sdvo)); > > - switch (pixel_multiplier) { > + switch (intel_crtc->config.pixel_multiplier) { > default: > case 1: rate = SDVO_CLOCK_RATE_MULT_1X; break; > case 2: rate = SDVO_CLOCK_RATE_MULT_2X; break; > @@ -1205,7 +1205,8 @@ static void intel_sdvo_mode_set(struct drm_encoder > *encoder, > } else if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) { > /* done in crtc_mode_set as it lives inside the dpll register > */ > } else { > - sdvox |= (pixel_multiplier - 1) << SDVO_PORT_MULTIPLY_SHIFT; > + sdvox |= (intel_crtc->config.pixel_multiplier - 1) > + << SDVO_PORT_MULTIPLY_SHIFT; > } > > if (input_dtd.part2.sdvo_flags & SDVO_NEED_TO_STALL && > @@ -2041,8 +2042,6 @@ done: > } > > static const struct drm_encoder_helper_funcs intel_sdvo_helper_funcs = { > - .mode_fixup = intel_sdvo_mode_fixup, > - .mode_set = intel_sdvo_mode_set, > }; > > static const struct drm_connector_funcs intel_sdvo_connector_funcs = { > @@ -2781,7 +2780,9 @@ bool intel_sdvo_init(struct drm_device *dev, uint32_t > sdvo_reg, bool is_sdvob) > > drm_encoder_helper_add(&intel_encoder->base, > &intel_sdvo_helper_funcs); > > + intel_encoder->compute_config = intel_sdvo_compute_config; > intel_encoder->disable = intel_disable_sdvo; > + intel_encoder->mode_set = intel_sdvo_mode_set; > intel_encoder->enable = intel_enable_sdvo; > intel_encoder->get_hw_state = intel_sdvo_get_hw_state; > > -- > 1.7.11.4 > > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Paulo Zanoni _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx