diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_panel.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_panel.c | 113 |
1 files changed, 83 insertions, 30 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_panel.c b/drivers/gpu/drm/i915/display/intel_panel.c index ce2a34a25211..9232a305b1e6 100644 --- a/drivers/gpu/drm/i915/display/intel_panel.c +++ b/drivers/gpu/drm/i915/display/intel_panel.c @@ -42,6 +42,7 @@ #include "intel_lvds_regs.h" #include "intel_panel.h" #include "intel_quirks.h" +#include "intel_vrr.h" bool intel_panel_use_ssc(struct drm_i915_private *i915) { @@ -58,6 +59,38 @@ intel_panel_preferred_fixed_mode(struct intel_connector *connector) struct drm_display_mode, head); } +static bool is_in_vrr_range(struct intel_connector *connector, int vrefresh) +{ + const struct drm_display_info *info = &connector->base.display_info; + + return intel_vrr_is_capable(connector) && + vrefresh >= info->monitor_range.min_vfreq && + vrefresh <= info->monitor_range.max_vfreq; +} + +static bool is_best_fixed_mode(struct intel_connector *connector, + int vrefresh, int fixed_mode_vrefresh, + const struct drm_display_mode *best_mode) +{ + /* we want to always return something */ + if (!best_mode) + return true; + + /* + * With VRR always pick a mode with equal/higher than requested + * vrefresh, which we can then reduce to match the requested + * vrefresh by extending the vblank length. + */ + if (is_in_vrr_range(connector, vrefresh) && + is_in_vrr_range(connector, fixed_mode_vrefresh) && + fixed_mode_vrefresh < vrefresh) + return false; + + /* pick the fixed_mode that is closest in terms of vrefresh */ + return abs(fixed_mode_vrefresh - vrefresh) < + abs(drm_mode_vrefresh(best_mode) - vrefresh); +} + const struct drm_display_mode * intel_panel_fixed_mode(struct intel_connector *connector, const struct drm_display_mode *mode) @@ -65,11 +98,11 @@ intel_panel_fixed_mode(struct intel_connector *connector, const struct drm_display_mode *fixed_mode, *best_mode = NULL; int vrefresh = drm_mode_vrefresh(mode); - /* pick the fixed_mode that is closest in terms of vrefresh */ list_for_each_entry(fixed_mode, &connector->panel.fixed_modes, head) { - if (!best_mode || - abs(drm_mode_vrefresh(fixed_mode) - vrefresh) < - abs(drm_mode_vrefresh(best_mode) - vrefresh)) + int fixed_mode_vrefresh = drm_mode_vrefresh(fixed_mode); + + if (is_best_fixed_mode(connector, vrefresh, + fixed_mode_vrefresh, best_mode)) best_mode = fixed_mode; } @@ -178,27 +211,46 @@ int intel_panel_compute_config(struct intel_connector *connector, { const struct drm_display_mode *fixed_mode = intel_panel_fixed_mode(connector, adjusted_mode); + int vrefresh, fixed_mode_vrefresh; + bool is_vrr; if (!fixed_mode) return 0; + vrefresh = drm_mode_vrefresh(adjusted_mode); + fixed_mode_vrefresh = drm_mode_vrefresh(fixed_mode); + /* - * We don't want to lie too much to the user about the refresh - * rate they're going to get. But we have to allow a bit of latitude - * for Xorg since it likes to automagically cook up modes with slightly - * off refresh rates. + * Assume that we shouldn't muck about with the + * timings if they don't land in the VRR range. */ - if (abs(drm_mode_vrefresh(adjusted_mode) - drm_mode_vrefresh(fixed_mode)) > 1) { - drm_dbg_kms(connector->base.dev, - "[CONNECTOR:%d:%s] Requested mode vrefresh (%d Hz) does not match fixed mode vrefresh (%d Hz)\n", - connector->base.base.id, connector->base.name, - drm_mode_vrefresh(adjusted_mode), drm_mode_vrefresh(fixed_mode)); + is_vrr = is_in_vrr_range(connector, vrefresh) && + is_in_vrr_range(connector, fixed_mode_vrefresh); - return -EINVAL; + if (!is_vrr) { + /* + * We don't want to lie too much to the user about the refresh + * rate they're going to get. But we have to allow a bit of latitude + * for Xorg since it likes to automagically cook up modes with slightly + * off refresh rates. + */ + if (abs(vrefresh - fixed_mode_vrefresh) > 1) { + drm_dbg_kms(connector->base.dev, + "[CONNECTOR:%d:%s] Requested mode vrefresh (%d Hz) does not match fixed mode vrefresh (%d Hz)\n", + connector->base.base.id, connector->base.name, + vrefresh, fixed_mode_vrefresh); + + return -EINVAL; + } } drm_mode_copy(adjusted_mode, fixed_mode); + if (is_vrr && fixed_mode_vrefresh != vrefresh) + adjusted_mode->vtotal = + DIV_ROUND_CLOSEST(adjusted_mode->clock * 1000, + adjusted_mode->htotal * vrefresh); + drm_mode_set_crtcinfo(adjusted_mode, 0); return 0; @@ -512,11 +564,11 @@ static void i9xx_scale_aspect(struct intel_crtc_state *crtc_state, bits = panel_fitter_scaling(pipe_src_h, adjusted_mode->crtc_vdisplay); - *pfit_pgm_ratios |= (bits << PFIT_HORIZ_SCALE_SHIFT | - bits << PFIT_VERT_SCALE_SHIFT); + *pfit_pgm_ratios |= (PFIT_HORIZ_SCALE(bits) | + PFIT_VERT_SCALE(bits)); *pfit_control |= (PFIT_ENABLE | - VERT_INTERP_BILINEAR | - HORIZ_INTERP_BILINEAR); + PFIT_VERT_INTERP_BILINEAR | + PFIT_HORIZ_INTERP_BILINEAR); } } else if (scaled_width < scaled_height) { /* letter */ centre_vertically(adjusted_mode, @@ -527,18 +579,19 @@ static void i9xx_scale_aspect(struct intel_crtc_state *crtc_state, bits = panel_fitter_scaling(pipe_src_w, adjusted_mode->crtc_hdisplay); - *pfit_pgm_ratios |= (bits << PFIT_HORIZ_SCALE_SHIFT | - bits << PFIT_VERT_SCALE_SHIFT); + *pfit_pgm_ratios |= (PFIT_HORIZ_SCALE(bits) | + PFIT_VERT_SCALE(bits)); *pfit_control |= (PFIT_ENABLE | - VERT_INTERP_BILINEAR | - HORIZ_INTERP_BILINEAR); + PFIT_VERT_INTERP_BILINEAR | + PFIT_HORIZ_INTERP_BILINEAR); } } else { /* Aspects match, Let hw scale both directions */ *pfit_control |= (PFIT_ENABLE | - VERT_AUTO_SCALE | HORIZ_AUTO_SCALE | - VERT_INTERP_BILINEAR | - HORIZ_INTERP_BILINEAR); + PFIT_VERT_AUTO_SCALE | + PFIT_HORIZ_AUTO_SCALE | + PFIT_VERT_INTERP_BILINEAR | + PFIT_HORIZ_INTERP_BILINEAR); } } @@ -586,10 +639,10 @@ static int gmch_panel_fitting(struct intel_crtc_state *crtc_state, if (DISPLAY_VER(dev_priv) >= 4) pfit_control |= PFIT_SCALING_AUTO; else - pfit_control |= (VERT_AUTO_SCALE | - VERT_INTERP_BILINEAR | - HORIZ_AUTO_SCALE | - HORIZ_INTERP_BILINEAR); + pfit_control |= (PFIT_VERT_AUTO_SCALE | + PFIT_VERT_INTERP_BILINEAR | + PFIT_HORIZ_AUTO_SCALE | + PFIT_HORIZ_INTERP_BILINEAR); } break; default: @@ -610,7 +663,7 @@ out: /* Make sure pre-965 set dither correctly for 18bpp panels. */ if (DISPLAY_VER(dev_priv) < 4 && crtc_state->pipe_bpp == 18) - pfit_control |= PANEL_8TO6_DITHER_ENABLE; + pfit_control |= PFIT_PANEL_8TO6_DITHER_ENABLE; crtc_state->gmch_pfit.control = pfit_control; crtc_state->gmch_pfit.pgm_ratios = pfit_pgm_ratios; |