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 4D6BDCCF9EB for ; Mon, 27 Oct 2025 16:30:37 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D8E8E10E515; Mon, 27 Oct 2025 16:30:36 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="IzrBfZQS"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.8]) by gabe.freedesktop.org (Postfix) with ESMTPS id F100810E515; Mon, 27 Oct 2025 16:30:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1761582619; x=1793118619; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=FV8hS9xkBaBxLb/7hSsP6P+NCmmObgRtX/epjMon8Ic=; b=IzrBfZQS7gU3IGRVC4/oYOEHHdCv4/IwOuXGxIUZHEb2aUGBk4mwQezc /jQlnahPIqEX08VduiupGh1007L1lVhRSDZWzg7wZ0v0mJQ8R+w1ujETU qKX6uJrOsWo9YJ66ooKGH2Q64CZHntL9g0SOcsTB+/f59+q1GrulJ2V9P PJUGLgC3KIoSlLNaSExLi5v1736bLRyvpS0WfhC4XcIn2L4Qwa/palfsU Fi2dQY+of7L6nf6SlVKBCDCNSUVvPhZ5yMjR+5LwOkShl8BRnSd2H8vK2 8AKjC3/0wMkI1l/eMe6sxAlw1qgRz/35FC99e2I9rw08AcIAhr9T4ja1k w==; X-CSE-ConnectionGUID: Mq9L5M9oTJC0UNOqbqm5eA== X-CSE-MsgGUID: O5Hzxcp3S9a5Mho15ImwBQ== X-IronPort-AV: E=McAfee;i="6800,10657,11586"; a="81299384" X-IronPort-AV: E=Sophos;i="6.19,259,1754982000"; d="scan'208";a="81299384" Received: from fmviesa007.fm.intel.com ([10.60.135.147]) by fmvoesa102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Oct 2025 09:30:19 -0700 X-CSE-ConnectionGUID: elZfBjo7TuG1nnJk6GwqMw== X-CSE-MsgGUID: qT1EW1lRRFCbEBBAdbllyg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.19,259,1754982000"; d="scan'208";a="184785821" Received: from mgolanimitul-x299-ud4-pro.iind.intel.com ([10.190.239.114]) by fmviesa007.fm.intel.com with ESMTP; 27 Oct 2025 09:30:17 -0700 From: Mitul Golani To: intel-gfx@lists.freedesktop.org Cc: intel-xe@lists.freedesktop.org, mitulkumar.ajitkumar.golani@intel.com, ankit.k.nautiyal@intel.com, uma.shankar@intel.com, ville.syrjala@linux.intel.com Subject: [PATCH v8 22/22] drm/i915/vrr: Add function to check if DC Balance Possible Date: Mon, 27 Oct 2025 21:59:27 +0530 Message-ID: <20251027162927.2655581-23-mitulkumar.ajitkumar.golani@intel.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20251027162927.2655581-1-mitulkumar.ajitkumar.golani@intel.com> References: <20251027162927.2655581-1-mitulkumar.ajitkumar.golani@intel.com> MIME-Version: 1.0 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" Add function to check if DC Balance possibile on requested PIPE and also validate along with DISPLAY_VER check. Signed-off-by: Mitul Golani Reviewed-by: Ankit Nautiyal --- drivers/gpu/drm/i915/display/intel_vrr.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/display/intel_vrr.c b/drivers/gpu/drm/i915/display/intel_vrr.c index d68306cdbf57..50bb3a1f6105 100644 --- a/drivers/gpu/drm/i915/display/intel_vrr.c +++ b/drivers/gpu/drm/i915/display/intel_vrr.c @@ -236,6 +236,22 @@ void intel_vrr_compute_cmrr_timings(struct intel_crtc_state *crtc_state) crtc_state->mode_flags |= I915_MODE_FLAG_VRR; } +static +int intel_vrr_dc_balance_possible(const struct intel_crtc_state *crtc_state) +{ + struct intel_display *display = to_intel_display(crtc_state); + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + enum pipe pipe = crtc->pipe; + + /* + * FIXME: Currently Firmware supports DC Balancing on PIPE A + * and PIPE B. Account those limitation while computing DC + * Balance parameters. + */ + return (HAS_VRR_DC_BALANCE(display) && + ((pipe == PIPE_A) || (pipe == PIPE_B))); +} + static void intel_vrr_compute_vrr_timings(struct intel_crtc_state *crtc_state, int vmin, int vmax) @@ -249,7 +265,7 @@ void intel_vrr_compute_vrr_timings(struct intel_crtc_state *crtc_state, crtc_state->vrr.enable = true; crtc_state->mode_flags |= I915_MODE_FLAG_VRR; - if (HAS_VRR_DC_BALANCE(display)) + if (intel_vrr_dc_balance_possible(crtc_state)) crtc_state->vrr.dc_balance.enable = true; } -- 2.48.1