From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from iguana.tulip.relay.mailchannels.net (iguana.tulip.relay.mailchannels.net [23.83.218.253]) (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 7A2DF33B970 for ; Wed, 9 Sep 2026 17:03:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=23.83.218.253 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788973420; cv=none; b=OQWs++S0btXN9pdS0CFNldrB46OnUBLfHMfrUuABR86+UfKdALpE+T44ZvvxHdK/edayz2fCwmzBqGfEadlmCelgCLXjJmkdRVoJmreKGtq5zFOzMhcZ21l9DmzR2uBREAGOevOVP9K34J/z8acjmgn6WqnLqDgRXatCPrSZtRM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788973420; c=relaxed/simple; bh=7FW3BuozXe5ptMNAeQXR+LzJEgs7YrdLNtO4EKXrMGU=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=jhM3lX0R8lDmROhYNzCAJMjVI+LvkFoLp7Z1NUz4sqxt2+RlO/eYOKhq88ricP8UE9iI1HyNTIWexT0FLRRbArrVrOeQsRU9uJhYFqG+kaAHgjjQgzLLIoFuB2gMabUdbtclM13YpMQZ3eyfBgJnN+iZbiHzsZgQe238oyM2QIU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=stgolabs.net; spf=fail smtp.mailfrom=stgolabs.net; dkim=pass (2048-bit key) header.d=stgolabs.net header.i=@stgolabs.net header.b=H63T14r4; arc=none smtp.client-ip=23.83.218.253 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=stgolabs.net Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=stgolabs.net Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=stgolabs.net header.i=@stgolabs.net header.b="H63T14r4" X-Sender-Id: dreamhost|x-authsender|dave@stgolabs.net Received: from relay.mailchannels.net (localhost [127.0.0.1]) by relay.mailchannels.net (Postfix) with ESMTP id 91EF5629AB; Wed, 09 Sep 2026 17:03:32 +0000 (UTC) Received: from pdx1-sub0-mail-a213.dreamhost.com (100-98-23-243.trex-nlb.outbound.svc.cluster.local [100.98.23.243]) (Authenticated sender: dreamhost) by relay.mailchannels.net (Postfix) with ESMTPA id 604FA6396A; Wed, 09 Sep 2026 17:03:32 +0000 (UTC) X-Sender-Id: dreamhost|x-authsender|dave@stgolabs.net X-MC-Relay: Neutral X-MailChannels-SenderId: dreamhost|x-authsender|dave@stgolabs.net X-MailChannels-Auth-Id: dreamhost X-Scare-Coil: 6754ee4e54b43fa4_1788973412489_1366598741 X-MC-Loop-Signature: 1788973412489:221873434 X-MC-Ingress-Time: 1788973412488 Received: from pdx1-sub0-mail-a213.dreamhost.com (pop.dreamhost.com [64.90.62.162]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384) by 100.98.23.243 (trex/8.0.2); Wed, 09 Sep 2026 17:03:32 +0000 Received: from offworld.lan (unknown [76.167.199.67]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: dave@stgolabs.net) by pdx1-sub0-mail-a213.dreamhost.com (Postfix) with ESMTPSA id 4hg6Zq57pwz1dC; Wed, 9 Sep 2026 10:03:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=stgolabs.net; s=dreamhost; t=1788973412; bh=VT95OGeCGzxtkKfxh7TY4CFcOg+AQ3hXPCQXumSUKgc=; h=From:To:Cc:Subject:Date:Content-Transfer-Encoding; b=H63T14r4yOvkwzdPXXTt+OzRAdvGjOXexR6JZi+tW7ZWTul9xB/xn7+0+85oHVmVH 5wKrbmI7PQHZXlg8EGhAtnmY+oKHqlBbDsXiYgYe6tiX8xmcPZRUkWFK2MN168/6ia hgRZiP22VmE+2Uvnkw9kA7LDo+080C8+0MEqH4VD4g/i+zyF7M9vPyFj2NJsk0YIVh jNbky5ywfzaFU5cz5Ny9KUH6nYl+8Bs3cfTp3LAzpu4ObeIDHajy9lbMvKxfxKPmtE B3irvxZxHGKFR0Jzc6aDidhMNeqAYEV6y9qYuj813MwlqXjCM59xI5O2foLct4Lwxu 1B6LyH3CMtO7Q== From: Davidlohr Bueso To: dave.jiang@intel.com Cc: jic23@kernel.org, alison.schofield@intel.com, icheng@nvidia.com, ming.li@zohomail.com, benjamin.cheatham@amd.com, alucerop@amd.com, dave@stgolabs.net, linux-cxl@vger.kernel.org Subject: [PATCH v8 06/10] cxl/region: Log the coherency model at region creation Date: Wed, 9 Sep 2026 10:02:58 -0700 Message-Id: <20260909170302.1550680-7-dave@stgolabs.net> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20260909170302.1550680-1-dave@stgolabs.net> References: <20260909170302.1550680-1-dave@stgolabs.net> Precedence: bulk X-Mailing-List: linux-cxl@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Region assembly emits plenty of debug information - resources, interleave geometry, target placement - but not the coherency model the region operates in. Reviewed-by: Dave Jiang Signed-off-by: Davidlohr Bueso --- drivers/cxl/core/region.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/drivers/cxl/core/region.c b/drivers/cxl/core/region.c index 6ccb3b387619..9874be7732d4 100644 --- a/drivers/cxl/core/region.c +++ b/drivers/cxl/core/region.c @@ -1843,6 +1843,13 @@ static int cxl_region_attach_position(struct cxl_region *cxlr, return rc; } +static const char *cxl_coherency_name(enum cxl_decoder_type type, bool bi) +{ + if (type == CXL_DECODER_HOSTONLYMEM) + return "HDM-H"; + return bi ? "HDM-DB" : "HDM-D"; +} + static int cxl_region_attach_auto(struct cxl_region *cxlr, struct cxl_endpoint_decoder *cxled, int pos) { @@ -2797,8 +2804,10 @@ static struct cxl_region *devm_cxl_add_region(struct cxl_root_decoder *cxlrd, return ERR_PTR(rc); } - dev_dbg(port->uport_dev, "%s: created %s\n", - dev_name(&cxlrd->cxlsd.cxld.dev), dev_name(dev)); + dev_dbg(port->uport_dev, "%s: created %s %s\n", + dev_name(&cxlrd->cxlsd.cxld.dev), + cxl_coherency_name(cxlr->type, cxl_root_decoder_is_bi(cxlrd)), + dev_name(dev)); return cxlr; err: put_device(dev); -- 2.39.5