From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 1E6843F6619; Wed, 20 May 2026 18:09:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779300556; cv=none; b=QPA2JgBKJiSq8DUh+WF6gYaO1feEEW1z1fe97+hxX7ejq7jbuElUwZupgP6Ufw+8l++Tc90sqNgQTOx+QZw3sBbVs3sURdg+I8AM+5OlUkcEgbdI7gSWnSNLvV6Z4nCFzS04ou3lv3SgzHdueUONCGx86B91+zSwEsZL3PIkz3g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779300556; c=relaxed/simple; bh=+iwJKNwSZXDuh4ETO8HZwLS7YkRb/7J6Io8QJ5pTd3Y=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=HaZl5bgybp9DQRfFGlPmNnxm+wdV6IJgH85By67UqudlHFj8d6IfItnFBD0GwvLT+yAtSnTgyQT9eTEf7M9TzotxoiGc6QEvTOJaiuyIIQW12sk1kzchQGFQy1iRoN5IS+AS99GhLGcxgLkov15eaqvzdY91ilNd4q9wzQEp0KQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=iP/K/RpB; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="iP/K/RpB" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E2F521F000E9; Wed, 20 May 2026 18:09:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1779300554; bh=TNd6X7BwiwBzrpOyLmO9Tw/zyBr+6abSALEk0ods7KQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=iP/K/RpBkrkiwTjNFec3X4xNdvrWqQEO0pG0HrLbsc9Zz0ea9LRk+RCm/osXt2CtS DEmndM8jho+uNUjW8TKGpK//D33JI0/88WoRevUgCPiZE78CaljGGrrzqCiS/Yj2Q0 w4t7mRJR6RX4H1hnCqi7YjtW6+79liIbAj67XZ4E= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Ahsan Atta , Giovanni Cabiddu , Herbert Xu , Sasha Levin Subject: [PATCH 6.12 220/666] crypto: qat - disable 420xx AE cluster when lead engine is fused off Date: Wed, 20 May 2026 18:17:11 +0200 Message-ID: <20260520162115.978031870@linuxfoundation.org> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260520162111.222830634@linuxfoundation.org> References: <20260520162111.222830634@linuxfoundation.org> User-Agent: quilt/0.69 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 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Ahsan Atta [ Upstream commit f216e0f2d1787e662bb6662c9c522185aa3b855a ] The get_ae_mask() function only disables individual engines based on the fuse register, but engines are organized in clusters of 4. If the lead engine of a cluster is fused off, the entire cluster must be disabled. Replace the single bitmask inversion with explicit test_bit() checks on the lead engine of each group, disabling the full ADF_AE_GROUP when the lead bit is set. Signed-off-by: Ahsan Atta Reviewed-by: Giovanni Cabiddu Fixes: fcf60f4bcf54 ("crypto: qat - add support for 420xx devices") Signed-off-by: Herbert Xu Signed-off-by: Sasha Levin --- .../intel/qat/qat_420xx/adf_420xx_hw_data.c | 20 +++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) diff --git a/drivers/crypto/intel/qat/qat_420xx/adf_420xx_hw_data.c b/drivers/crypto/intel/qat/qat_420xx/adf_420xx_hw_data.c index 0e7d0db475d5d..5d32f2958da87 100644 --- a/drivers/crypto/intel/qat/qat_420xx/adf_420xx_hw_data.c +++ b/drivers/crypto/intel/qat/qat_420xx/adf_420xx_hw_data.c @@ -98,9 +98,25 @@ static struct adf_hw_device_class adf_420xx_class = { static u32 get_ae_mask(struct adf_hw_device_data *self) { - u32 me_disable = self->fuses[ADF_FUSECTL4]; + unsigned long fuses = self->fuses[ADF_FUSECTL4]; + u32 mask = ADF_420XX_ACCELENGINES_MASK; - return ~me_disable & ADF_420XX_ACCELENGINES_MASK; + if (test_bit(0, &fuses)) + mask &= ~ADF_AE_GROUP_0; + + if (test_bit(4, &fuses)) + mask &= ~ADF_AE_GROUP_1; + + if (test_bit(8, &fuses)) + mask &= ~ADF_AE_GROUP_2; + + if (test_bit(12, &fuses)) + mask &= ~ADF_AE_GROUP_3; + + if (test_bit(16, &fuses)) + mask &= ~ADF_AE_GROUP_4; + + return mask; } static u32 uof_get_num_objs(struct adf_accel_dev *accel_dev) -- 2.53.0