From 615e29eeb4211b93d5af64ab72c874cca5430261 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Fri, 22 Jan 2021 15:26:33 -0800 Subject: [PATCH] drm/i915: Extract intel_mode_vblank_start() MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit We want to calculate the vblank_start for vblank evasion differently for vrr. To make that nicer lets first extract the current non-vrr case to a helper. Signed-off-by: Ville Syrjälä Reviewed-by: Manasi Navare Signed-off-by: Manasi Navare Link: https://patchwork.freedesktop.org/patch/msgid/20210122232647.22688-4-manasi.d.navare@intel.com --- drivers/gpu/drm/i915/display/intel_sprite.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_sprite.c b/drivers/gpu/drm/i915/display/intel_sprite.c index 138b971b4b21..ae8124fdf7de 100644 --- a/drivers/gpu/drm/i915/display/intel_sprite.c +++ b/drivers/gpu/drm/i915/display/intel_sprite.c @@ -62,6 +62,16 @@ int intel_usecs_to_scanlines(const struct drm_display_mode *adjusted_mode, 1000 * adjusted_mode->crtc_htotal); } +static int intel_mode_vblank_start(const struct drm_display_mode *mode) +{ + int vblank_start = mode->crtc_vblank_start; + + if (mode->flags & DRM_MODE_FLAG_INTERLACE) + vblank_start = DIV_ROUND_UP(vblank_start, 2); + + return vblank_start; +} + /** * intel_pipe_update_start() - start update of a set of display registers * @new_crtc_state: the new crtc state @@ -90,9 +100,7 @@ void intel_pipe_update_start(const struct intel_crtc_state *new_crtc_state) if (new_crtc_state->uapi.async_flip) return; - vblank_start = adjusted_mode->crtc_vblank_start; - if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) - vblank_start = DIV_ROUND_UP(vblank_start, 2); + vblank_start = intel_mode_vblank_start(adjusted_mode); /* FIXME needs to be calibrated sensibly */ min = vblank_start - intel_usecs_to_scanlines(adjusted_mode, -- 2.11.0