From nobody Sat Feb 7 22:54:57 2026 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 4AC49130E2A; Wed, 27 Mar 2024 12:07:26 +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=1711541247; cv=none; b=HjpOTiwAIVckBiGKntrNOeUq2QWjH4OZKNFKi0Jo+SE6jfG/XW28ZW0LM9kYbeGH0BH7quCTungbQh+pQe3ZqVbzbvlgVRhF6mNq8jjFz++Mzz8Mtsp7Nh+YruWP6EzSOmwGX5auVuGi1VtxwOozl9soVuAGBU6ICIrYsdP6FIc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711541247; c=relaxed/simple; bh=6s5uEWEPs9kmgBcCZZb7E6e5mydDPmBE6k8E5OOrCjs=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=IGRU5mBP7zBLo/d+PrnQkjos8YqShFJQ98v2lZmKLe9v/N7dDYT6ueqRqULPAPbsezFNHEpCWPMK6+hrCfOc4A8uQtngSjxX3RTGPYqYGBydpwjyYzBdNtSovCpzExEdQlkv5zI7oIhixJczN1jec9rigDF39VwEnvP1CZn43BM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=NR0kUem8; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="NR0kUem8" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BF9AAC43399; Wed, 27 Mar 2024 12:07:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1711541246; bh=6s5uEWEPs9kmgBcCZZb7E6e5mydDPmBE6k8E5OOrCjs=; h=From:To:Cc:Subject:Date:From; b=NR0kUem8Tz4mQBL1Be8PP3cIXrQw78z9R6V5rdaawqufLdn535LEnbUxpLqOR5qoz ZPsNkzq6zcCS0PZw0zjOXlJdWhJH7/WLKLUh/lYXhtMGC6ok5YeeL+rPdrF28AMNcZ cLlPLsWcxTc/8LaQHxbKtkUtgjpCsYOR/Y74bxmtpYNPLOFx71AYu869XJFiHMyjAQ DvKsEut+FY2sQ4EIPNeYUPTBUOAYuE3JhL3R0TkqFpDUAMWF14j6GIUdiKgg707tj3 gq/qsXJyExaUKSbwdWc8CZPyguoqetRE5q1ZIpr8w5KA9L46L8vuw8pzBS1p/ZavB6 nzLMSf+k5Fjtw== From: Sasha Levin To: stable@vger.kernel.org, ovidiu.bunea@amd.com Cc: Mario Limonciello , Alex Deucher , Charlene Liu , Alex Hung , Daniel Wheeler , amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: FAILED: Patch "drm/amd/display: Fix DML2 watermark calculation" failed to apply to 6.8-stable tree Date: Wed, 27 Mar 2024 08:07:24 -0400 Message-ID: <20240327120724.2825398-1-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Hint: ignore X-stable: review Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The patch below does not apply to the 6.8-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . Thanks, Sasha Acked-by: Alex Hung Reviewed-by: Charlene Liu Tested-by: Daniel Wheeler ------------------ original commit in Linus's tree ------------------ From 2254ab45dab22a18fdd29fe0e471706872c00093 Mon Sep 17 00:00:00 2001 From: Ovidiu Bunea Date: Mon, 18 Dec 2023 21:40:45 -0500 Subject: [PATCH] drm/amd/display: Fix DML2 watermark calculation [Why] core_mode_programming in DML2 should output watermark calculations to locals, but it incorrectly uses mode_lib [How] update code to match HW DML2 Cc: Mario Limonciello Cc: Alex Deucher Cc: stable@vger.kernel.org Reviewed-by: Charlene Liu Acked-by: Alex Hung Signed-off-by: Ovidiu Bunea Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher --- .../drm/amd/display/dc/dml2/display_mode_core.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/dml2/display_mode_core.c b/driv= ers/gpu/drm/amd/display/dc/dml2/display_mode_core.c index a6b938a12de13..9be5ebf3a8c0b 100644 --- a/drivers/gpu/drm/amd/display/dc/dml2/display_mode_core.c +++ b/drivers/gpu/drm/amd/display/dc/dml2/display_mode_core.c @@ -9446,13 +9446,13 @@ void dml_core_mode_programming(struct display_mode_= lib_st *mode_lib, const struc CalculateWatermarks_params->CompressedBufferSizeInkByte =3D locals->Comp= ressedBufferSizeInkByte; =20 // Output - CalculateWatermarks_params->Watermark =3D &s->dummy_watermark; // Waterm= arks *Watermark - CalculateWatermarks_params->DRAMClockChangeSupport =3D &mode_lib->ms.sup= port.DRAMClockChangeSupport[0]; - CalculateWatermarks_params->MaxActiveDRAMClockChangeLatencySupported =3D= &s->dummy_single_array[0][0]; // dml_float_t *MaxActiveDRAMClockChangeLate= ncySupported[] - CalculateWatermarks_params->SubViewportLinesNeededInMALL =3D &mode_lib->= ms.SubViewportLinesNeededInMALL[j]; // dml_uint_t SubViewportLinesNeededInM= ALL[] - CalculateWatermarks_params->FCLKChangeSupport =3D &mode_lib->ms.support.= FCLKChangeSupport[0]; - CalculateWatermarks_params->MaxActiveFCLKChangeLatencySupported =3D &s->= dummy_single[0]; // dml_float_t *MaxActiveFCLKChangeLatencySupported - CalculateWatermarks_params->USRRetrainingSupport =3D &mode_lib->ms.suppo= rt.USRRetrainingSupport[0]; + CalculateWatermarks_params->Watermark =3D &locals->Watermark; // Waterma= rks *Watermark + CalculateWatermarks_params->DRAMClockChangeSupport =3D &locals->DRAMCloc= kChangeSupport; + CalculateWatermarks_params->MaxActiveDRAMClockChangeLatencySupported =3D= locals->MaxActiveDRAMClockChangeLatencySupported; // dml_float_t *MaxActiv= eDRAMClockChangeLatencySupported[] + CalculateWatermarks_params->SubViewportLinesNeededInMALL =3D locals->Sub= ViewportLinesNeededInMALL; // dml_uint_t SubViewportLinesNeededInMALL[] + CalculateWatermarks_params->FCLKChangeSupport =3D &locals->FCLKChangeSup= port; + CalculateWatermarks_params->MaxActiveFCLKChangeLatencySupported =3D &loc= als->MaxActiveFCLKChangeLatencySupported; // dml_float_t *MaxActiveFCLKChan= geLatencySupported + CalculateWatermarks_params->USRRetrainingSupport =3D &locals->USRRetrain= ingSupport; =20 CalculateWatermarksMALLUseAndDRAMSpeedChangeSupport( &mode_lib->scratch, --=20 2.43.0