From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B59BA1171A for ; Mon, 21 Aug 2023 20:09:44 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 36315C433C8; Mon, 21 Aug 2023 20:09:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1692648584; bh=0dh40JgdtAoQvznQg7p+9sfjh4m5zlQvZ0B7w93IONM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Da6UM3SxI7wURSAvQhB14Nkiy/wnhKncu8/pY7wOIQpOxcSw28QqU9mBl0dskb1Wh uekH3ZHEf5ivB5AQWX6iPgHpx90N9xw0p30Y9poC20gJ4ZXq2asR+TJFSUayRcnTg0 cdvIFV7YLRIFFVx7HNVIb0gnoOSzwn6stmtUGMvg= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Nicholas Kazlauskas , Hamza Mahfooz , Daniel Miess , Alex Deucher Subject: [PATCH 6.4 228/234] drm/amd/display: disable RCO for DCN314 Date: Mon, 21 Aug 2023 21:43:11 +0200 Message-ID: <20230821194138.991703538@linuxfoundation.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230821194128.754601642@linuxfoundation.org> References: <20230821194128.754601642@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Daniel Miess commit 85e41f1ed5d94a26fe4e57003c399936d291ed70 upstream. [Why] RCO is causing error messages on some DCN314 systems [How] Force disable RCO for DCN314 Fixes: 17fbdbda9cc8 ("drm/amd/display: Enable dcn314 DPP RCO") Reviewed-by: Nicholas Kazlauskas Acked-by: Hamza Mahfooz Signed-off-by: Daniel Miess Signed-off-by: Alex Deucher Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/amd/display/dc/dcn314/dcn314_dccg.c | 2 +- drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c | 4 ++++ 2 files changed, 5 insertions(+), 1 deletion(-) --- a/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_dccg.c +++ b/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_dccg.c @@ -322,7 +322,7 @@ static void dccg314_dpp_root_clock_contr { struct dcn_dccg *dccg_dcn = TO_DCN_DCCG(dccg); - if (dccg->dpp_clock_gated[dpp_inst] == clock_on) + if (dccg->dpp_clock_gated[dpp_inst] != clock_on) return; if (clock_on) { --- a/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c @@ -1936,6 +1936,10 @@ static bool dcn314_resource_construct( dc->debug = debug_defaults_drv; else dc->debug = debug_defaults_diags; + + /* Disable root clock optimization */ + dc->debug.root_clock_optimization.u32All = 0; + // Init the vm_helper if (dc->vm_helper) vm_helper_init(dc->vm_helper, 16);