From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9CF87C7EE2A for ; Tue, 24 Jun 2025 07:51:32 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 3FC8210E4F8; Tue, 24 Jun 2025 07:51:32 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="DDuwCsS6"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.7]) by gabe.freedesktop.org (Postfix) with ESMTPS id D562910E509; Tue, 24 Jun 2025 07:51:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1750751491; x=1782287491; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=OEgjSNwtcrjDj+aoKIt7Kg+oA1RgPSCbortL+EJISNM=; b=DDuwCsS6hCYXEJQSIgwmFPbLNswuFON9C+SBojJBP676Xmpj4k4Xqq1N isTMthkE2FvmrqolON9ekb4n/iWanNgwLFWyU2xVWckAyz3YI4Jhwy28j deHPgdAA0acodEFQLjm1Rv+fzRbSA21ASRN0Mx4qA+4gYt51/HnxjkOkQ lUsc5UqASH31MpHttrif5WDCZE6e2sciwQQb7YyW+/SLWLVeB0gdTBeE6 rTjrkwaIm6N9s82G3+DLSMHAY/JzhQW/pKFBdEMrEUvRgoU3b+e8GMEYY eC0eagz8WKUZECwCA5HAO3+1jcMVD0niAbemB+4iWZRa3ncrlucngzhk3 A==; X-CSE-ConnectionGUID: tZHaTzQcSR+X7GGiPtS9AQ== X-CSE-MsgGUID: bmTqq5iRRQCyCr4aG4x+PA== X-IronPort-AV: E=McAfee;i="6800,10657,11473"; a="78398255" X-IronPort-AV: E=Sophos;i="6.16,261,1744095600"; d="scan'208";a="78398255" Received: from fmviesa002.fm.intel.com ([10.60.135.142]) by fmvoesa101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Jun 2025 00:51:30 -0700 X-CSE-ConnectionGUID: Gntxaj5bSbajB3//TwiJbA== X-CSE-MsgGUID: VdCBDH0pQvKHLDKH3ckaHQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.16,261,1744095600"; d="scan'208";a="175446463" Received: from mgolanimitul-x299-ud4-pro.iind.intel.com ([10.190.239.114]) by fmviesa002.fm.intel.com with ESMTP; 24 Jun 2025 00:51:28 -0700 From: Mitul Golani To: intel-xe@lists.freedesktop.org, intel-gfx@lists.freedesktop.org Cc: ville.syrjala@linux.intel.com, ankit.k.nautiyal@intel.com, jani.nikula@linux.intel.com Subject: [PATCH v7 11/18] drm/i915/vrr: Implement vblank evasion with DC balancing Date: Tue, 24 Jun 2025 13:19:41 +0530 Message-ID: <20250624074948.671761-12-mitulkumar.ajitkumar.golani@intel.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250624074948.671761-1-mitulkumar.ajitkumar.golani@intel.com> References: <20250624074948.671761-1-mitulkumar.ajitkumar.golani@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: Ville Syrjälä Add vblank evasion logic when vrr is already enabled along with dc balance is computed. Signed-off-by: Ville Syrjälä Signed-off-by: Mitul Golani Reviewed-by: Ankit Nautiyal --- drivers/gpu/drm/i915/display/intel_dsb.c | 31 ++++++++++++++++++++- drivers/gpu/drm/i915/display/intel_vblank.c | 26 +++++++++++++++-- 2 files changed, 53 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_dsb.c b/drivers/gpu/drm/i915/display/intel_dsb.c index 53d8ae3a70e9..ec624dc1987e 100644 --- a/drivers/gpu/drm/i915/display/intel_dsb.c +++ b/drivers/gpu/drm/i915/display/intel_dsb.c @@ -721,7 +721,36 @@ void intel_dsb_vblank_evade(struct intel_atomic_state *state, if (crtc_state->has_psr) intel_dsb_emit_wait_dsl(dsb, DSB_OPCODE_WAIT_DSL_OUT, 0, 0); - if (pre_commit_is_vrr_active(state, crtc)) { + if (pre_commit_is_vrr_active(state, crtc) && crtc_state->vrr.dc_balance.enable) { + int vblank_delay = intel_vrr_vblank_delay(crtc_state); + int vmin_vblank_start, vmax_vblank_start; + + vmin_vblank_start = intel_vrr_dcb_vmin_vblank_start_next(crtc_state); + + if (vmin_vblank_start >= 0) { + end = vmin_vblank_start; + start = end - vblank_delay - latency; + intel_dsb_wait_scanline_out(state, dsb, start, end); + } + + vmax_vblank_start = intel_vrr_dcb_vmax_vblank_start_next(crtc_state); + + if (vmax_vblank_start >= 0) { + end = vmax_vblank_start; + start = end - vblank_delay - latency; + intel_dsb_wait_scanline_out(state, dsb, start, end); + } + + vmin_vblank_start = intel_vrr_dcb_vmin_vblank_start_final(crtc_state); + end = vmin_vblank_start; + start = end - vblank_delay - latency; + intel_dsb_wait_scanline_out(state, dsb, start, end); + + vmax_vblank_start = intel_vrr_dcb_vmax_vblank_start_final(crtc_state); + end = vmax_vblank_start; + start = end - vblank_delay - latency; + intel_dsb_wait_scanline_out(state, dsb, start, end); + } else if (pre_commit_is_vrr_active(state, crtc)) { int vblank_delay = intel_vrr_vblank_delay(crtc_state); end = intel_vrr_vmin_vblank_start(crtc_state); diff --git a/drivers/gpu/drm/i915/display/intel_vblank.c b/drivers/gpu/drm/i915/display/intel_vblank.c index d544e274bcfa..685768124852 100644 --- a/drivers/gpu/drm/i915/display/intel_vblank.c +++ b/drivers/gpu/drm/i915/display/intel_vblank.c @@ -644,10 +644,30 @@ intel_pre_commit_crtc_state(struct intel_atomic_state *state, static int vrr_vblank_start(const struct intel_crtc_state *crtc_state) { - if (intel_vrr_is_push_sent(crtc_state)) - return intel_vrr_vmin_vblank_start(crtc_state); + bool is_push_sent = intel_vrr_is_push_sent(crtc_state); + int vblank_start; + + if (!crtc_state->vrr.dc_balance.enable) { + if (is_push_sent) + return intel_vrr_vmin_vblank_start(crtc_state); + else + return intel_vrr_vmax_vblank_start(crtc_state); + } + + if (is_push_sent) + vblank_start = intel_vrr_dcb_vmin_vblank_start_next(crtc_state); else - return intel_vrr_vmax_vblank_start(crtc_state); + vblank_start = intel_vrr_dcb_vmax_vblank_start_next(crtc_state); + + if (vblank_start >= 0) + return vblank_start; + + if (is_push_sent) + vblank_start = intel_vrr_dcb_vmin_vblank_start_final(crtc_state); + else + vblank_start = intel_vrr_dcb_vmax_vblank_start_final(crtc_state); + + return vblank_start; } void intel_vblank_evade_init(const struct intel_crtc_state *old_crtc_state, -- 2.48.1