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 5259413D600; Tue, 23 Jul 2024 18:40:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721760033; cv=none; b=l/e19cYVtKxEMpjAPaoA6RahwNZ1wESDk2I6iMhSVebO9n6+xadkmeCAsUMfHgXOLcJempod9rcehNjYCvmHSrSului+5Il0EivMirZKa3vJHDo/MT+iyfMknTuGTS88dFeJELlLFnbR18Db2pSfahZsBd+Vep1GwbF96x1k6wI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721760033; c=relaxed/simple; bh=1qlIWpgVtBUtOUY3B0G9ms6o0U2loS3WvnKfYDOXWUE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Ay+9o9/ewxibMryx/AThSOYDgVszK9wEqK9ATdGX7EWl40+TLjUSLG6dSuNwK7lT7JVnm1OaLFy/O4Avo7KS6w1BqVyD7GfpTtCQcjLZuce/QgfSktpmLsgytPrHHEINk2jtl0PoHvcIKc/3NH3WWp021SGc6vKr9ry/yK2yh1w= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=HyW7svDG; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="HyW7svDG" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C302CC4AF0A; Tue, 23 Jul 2024 18:40:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1721760033; bh=1qlIWpgVtBUtOUY3B0G9ms6o0U2loS3WvnKfYDOXWUE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=HyW7svDGtqvWJNqE/LwSy27FbQ2eMh8x99UWwXyKcziZIBe4fhzmCxuTMkl+cp2Bv TEll5uafr7L6qKOKYGKtztMq3xvev3Gg9QUOrjRQwgv7ZOoHHx5yO/Jo+4DlJ1hNVL Eq+DnG0LuCYlyG8eZwyozOPnDhyQ/u0HckOiCJsM= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Nicholas Kazlauskas , Zaeem Mohamed , Paul Hsieh , Daniel Wheeler , Alex Deucher , Sasha Levin Subject: [PATCH 6.9 081/163] drm/amd/display: change dram_clock_latency to 34us for dcn35 Date: Tue, 23 Jul 2024 20:23:30 +0200 Message-ID: <20240723180146.599614174@linuxfoundation.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240723180143.461739294@linuxfoundation.org> References: <20240723180143.461739294@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Paul Hsieh [ Upstream commit 6071607bfefefc50a3907c0ba88878846960d29a ] [Why & How] Current DRAM setting would cause underflow on customer platform. Modify dram_clock_change_latency_us from 11.72 to 34.0 us as per recommendation from HW team Reviewed-by: Nicholas Kazlauskas Acked-by: Zaeem Mohamed Signed-off-by: Paul Hsieh Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/display/dc/dml/dcn35/dcn35_fpu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn35/dcn35_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn35/dcn35_fpu.c index 53e40d3c48d4b..6716696df7719 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/dcn35/dcn35_fpu.c +++ b/drivers/gpu/drm/amd/display/dc/dml/dcn35/dcn35_fpu.c @@ -177,7 +177,7 @@ struct _vcs_dpi_soc_bounding_box_st dcn3_5_soc = { .urgent_latency_pixel_data_only_us = 4.0, .urgent_latency_pixel_mixed_with_vm_data_us = 4.0, .urgent_latency_vm_data_only_us = 4.0, - .dram_clock_change_latency_us = 11.72, + .dram_clock_change_latency_us = 34.0, .urgent_out_of_order_return_per_channel_pixel_only_bytes = 4096, .urgent_out_of_order_return_per_channel_pixel_and_vm_bytes = 4096, .urgent_out_of_order_return_per_channel_vm_only_bytes = 4096, -- 2.43.0