From: Paulo Zanoni <paulo.r.zanoni at intel.com> ... instead of mode->crtc_display. The spec says "pipe horizontal total number of pixels" and the "Haswell Watermark Calculator" tool uses the "Pipe H Total" instead of "Pipe H Src" as the value. Signed-off-by: Paulo Zanoni <paulo.r.zanoni at intel.com> --- drivers/gpu/drm/i915/intel_pm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index d056bc9..4cc5f99 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -2035,7 +2035,7 @@ haswell_update_linetime_wm(struct drm_device *dev, struct drm_crtc *crtc) * row at the given clock rate, multiplied by 8. * */ temp |= PIPE_WM_LINETIME_TIME( - ((mode->crtc_hdisplay * 1000) / mode->clock) * 8); + ((mode->htotal * 1000) / mode->clock) * 8); /* IPS watermarks are only used by pipe A, and are ignored by * pipes B and C. They are calculated similarly to the common -- 1.7.10.4
