From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> Move intel_crtc_update_active_timings() into intel_vblank.c where it more properly belongs. Also do the s/dev_priv/i915/ modernization rename while at it. Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> --- drivers/gpu/drm/i915/display/intel_display.c | 84 ------------------ drivers/gpu/drm/i915/display/intel_display.h | 1 - .../drm/i915/display/intel_modeset_setup.c | 1 + drivers/gpu/drm/i915/display/intel_vblank.c | 85 +++++++++++++++++++ drivers/gpu/drm/i915/display/intel_vblank.h | 2 + 5 files changed, 88 insertions(+), 85 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 020320468967..add3bed3d2e1 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -5903,90 +5903,6 @@ int intel_modeset_all_pipes(struct intel_atomic_state *state, return 0; } -void intel_crtc_update_active_timings(const 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 drm_display_mode adjusted_mode; - int vmax_vblank_start = 0; - unsigned long irqflags; - - drm_mode_init(&adjusted_mode, &crtc_state->hw.adjusted_mode); - - if (crtc_state->vrr.enable) { - adjusted_mode.crtc_vtotal = crtc_state->vrr.vmax; - adjusted_mode.crtc_vblank_end = crtc_state->vrr.vmax; - adjusted_mode.crtc_vblank_start = intel_vrr_vmin_vblank_start(crtc_state); - vmax_vblank_start = intel_vrr_vmax_vblank_start(crtc_state); - } - - /* - * Belts and suspenders locking to guarantee everyone sees 100% - * consistent state during fastset seamless refresh rate changes. - * - * vblank_time_lock takes care of all drm_vblank.c stuff, and - * uncore.lock takes care of __intel_get_crtc_scanline() which - * may get called elsewhere as well. - * - * TODO maybe just protect everything (including - * __intel_get_crtc_scanline()) with vblank_time_lock? - * Need to audit everything to make sure it's safe. - */ - spin_lock_irqsave(&dev_priv->drm.vblank_time_lock, irqflags); - spin_lock(&dev_priv->uncore.lock); - - drm_calc_timestamping_constants(&crtc->base, &adjusted_mode); - - crtc->vmax_vblank_start = vmax_vblank_start; - - crtc->mode_flags = crtc_state->mode_flags; - - /* - * The scanline counter increments at the leading edge of hsync. - * - * On most platforms it starts counting from vtotal-1 on the - * first active line. That means the scanline counter value is - * always one less than what we would expect. Ie. just after - * start of vblank, which also occurs at start of hsync (on the - * last active line), the scanline counter will read vblank_start-1. - * - * On gen2 the scanline counter starts counting from 1 instead - * of vtotal-1, so we have to subtract one (or rather add vtotal-1 - * to keep the value positive), instead of adding one. - * - * On HSW+ the behaviour of the scanline counter depends on the output - * type. For DP ports it behaves like most other platforms, but on HDMI - * there's an extra 1 line difference. So we need to add two instead of - * one to the value. - * - * On VLV/CHV DSI the scanline counter would appear to increment - * approx. 1/3 of a scanline before start of vblank. Unfortunately - * that means we can't tell whether we're in vblank or not while - * we're on that particular line. We must still set scanline_offset - * to 1 so that the vblank timestamps come out correct when we query - * the scanline counter from within the vblank interrupt handler. - * However if queried just before the start of vblank we'll get an - * answer that's slightly in the future. - */ - if (DISPLAY_VER(dev_priv) == 2) { - int vtotal; - - vtotal = adjusted_mode.crtc_vtotal; - if (adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE) - vtotal /= 2; - - crtc->scanline_offset = vtotal - 1; - } else if (HAS_DDI(dev_priv) && - intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI)) { - crtc->scanline_offset = 2; - } else { - crtc->scanline_offset = 1; - } - - spin_unlock(&dev_priv->uncore.lock); - spin_unlock_irqrestore(&dev_priv->drm.vblank_time_lock, irqflags); -} - /* * This implements the workaround described in the "notes" section of the mode * set sequence documentation. When going from no pipes or single pipe to diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h index 50285fb4fcf5..ce97cb72f6d3 100644 --- a/drivers/gpu/drm/i915/display/intel_display.h +++ b/drivers/gpu/drm/i915/display/intel_display.h @@ -422,7 +422,6 @@ bool intel_crtc_get_pipe_config(struct intel_crtc_state *crtc_state); bool intel_pipe_config_compare(const struct intel_crtc_state *current_config, const struct intel_crtc_state *pipe_config, bool fastset); -void intel_crtc_update_active_timings(const struct intel_crtc_state *crtc_state); void intel_plane_destroy(struct drm_plane *plane); void i9xx_set_pipeconf(const struct intel_crtc_state *crtc_state); diff --git a/drivers/gpu/drm/i915/display/intel_modeset_setup.c b/drivers/gpu/drm/i915/display/intel_modeset_setup.c index 60f71e6f0491..c51209a3d36a 100644 --- a/drivers/gpu/drm/i915/display/intel_modeset_setup.c +++ b/drivers/gpu/drm/i915/display/intel_modeset_setup.c @@ -26,6 +26,7 @@ #include "intel_modeset_setup.h" #include "intel_pch_display.h" #include "intel_pm.h" +#include "intel_vblank.h" #include "intel_wm.h" #include "skl_watermark.h" diff --git a/drivers/gpu/drm/i915/display/intel_vblank.c b/drivers/gpu/drm/i915/display/intel_vblank.c index 571f5dda1e66..48bf3923af11 100644 --- a/drivers/gpu/drm/i915/display/intel_vblank.c +++ b/drivers/gpu/drm/i915/display/intel_vblank.c @@ -8,6 +8,7 @@ #include "intel_de.h" #include "intel_display_types.h" #include "intel_vblank.h" +#include "intel_vrr.h" /* * This timing diagram depicts the video signal in and @@ -439,3 +440,87 @@ void intel_wait_for_pipe_scanline_moving(struct intel_crtc *crtc) { wait_for_pipe_scanline_moving(crtc, true); } + +void intel_crtc_update_active_timings(const struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct drm_i915_private *i915 = to_i915(crtc->base.dev); + struct drm_display_mode adjusted_mode; + int vmax_vblank_start = 0; + unsigned long irqflags; + + drm_mode_init(&adjusted_mode, &crtc_state->hw.adjusted_mode); + + if (crtc_state->vrr.enable) { + adjusted_mode.crtc_vtotal = crtc_state->vrr.vmax; + adjusted_mode.crtc_vblank_end = crtc_state->vrr.vmax; + adjusted_mode.crtc_vblank_start = intel_vrr_vmin_vblank_start(crtc_state); + vmax_vblank_start = intel_vrr_vmax_vblank_start(crtc_state); + } + + /* + * Belts and suspenders locking to guarantee everyone sees 100% + * consistent state during fastset seamless refresh rate changes. + * + * vblank_time_lock takes care of all drm_vblank.c stuff, and + * uncore.lock takes care of __intel_get_crtc_scanline() which + * may get called elsewhere as well. + * + * TODO maybe just protect everything (including + * __intel_get_crtc_scanline()) with vblank_time_lock? + * Need to audit everything to make sure it's safe. + */ + spin_lock_irqsave(&i915->drm.vblank_time_lock, irqflags); + spin_lock(&i915->uncore.lock); + + drm_calc_timestamping_constants(&crtc->base, &adjusted_mode); + + crtc->vmax_vblank_start = vmax_vblank_start; + + crtc->mode_flags = crtc_state->mode_flags; + + /* + * The scanline counter increments at the leading edge of hsync. + * + * On most platforms it starts counting from vtotal-1 on the + * first active line. That means the scanline counter value is + * always one less than what we would expect. Ie. just after + * start of vblank, which also occurs at start of hsync (on the + * last active line), the scanline counter will read vblank_start-1. + * + * On gen2 the scanline counter starts counting from 1 instead + * of vtotal-1, so we have to subtract one (or rather add vtotal-1 + * to keep the value positive), instead of adding one. + * + * On HSW+ the behaviour of the scanline counter depends on the output + * type. For DP ports it behaves like most other platforms, but on HDMI + * there's an extra 1 line difference. So we need to add two instead of + * one to the value. + * + * On VLV/CHV DSI the scanline counter would appear to increment + * approx. 1/3 of a scanline before start of vblank. Unfortunately + * that means we can't tell whether we're in vblank or not while + * we're on that particular line. We must still set scanline_offset + * to 1 so that the vblank timestamps come out correct when we query + * the scanline counter from within the vblank interrupt handler. + * However if queried just before the start of vblank we'll get an + * answer that's slightly in the future. + */ + if (DISPLAY_VER(i915) == 2) { + int vtotal; + + vtotal = adjusted_mode.crtc_vtotal; + if (adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE) + vtotal /= 2; + + crtc->scanline_offset = vtotal - 1; + } else if (HAS_DDI(i915) && + intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI)) { + crtc->scanline_offset = 2; + } else { + crtc->scanline_offset = 1; + } + + spin_unlock(&i915->uncore.lock); + spin_unlock_irqrestore(&i915->drm.vblank_time_lock, irqflags); +} diff --git a/drivers/gpu/drm/i915/display/intel_vblank.h b/drivers/gpu/drm/i915/display/intel_vblank.h index c9fea2c2a990..0884db7e76ae 100644 --- a/drivers/gpu/drm/i915/display/intel_vblank.h +++ b/drivers/gpu/drm/i915/display/intel_vblank.h @@ -11,6 +11,7 @@ struct drm_crtc; struct intel_crtc; +struct intel_crtc_state; u32 i915_get_vblank_counter(struct drm_crtc *crtc); u32 g4x_get_vblank_counter(struct drm_crtc *crtc); @@ -19,5 +20,6 @@ bool intel_crtc_get_vblank_timestamp(struct drm_crtc *crtc, int *max_error, int intel_get_crtc_scanline(struct intel_crtc *crtc); void intel_wait_for_pipe_scanline_stopped(struct intel_crtc *crtc); void intel_wait_for_pipe_scanline_moving(struct intel_crtc *crtc); +void intel_crtc_update_active_timings(const struct intel_crtc_state *crtc_state); #endif /* __INTEL_VBLANK_H__ */ -- 2.39.2