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 B6D743D88EC for ; Tue, 19 May 2026 21:37:42 +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=1779226663; cv=none; b=MaJewAvx7Qcfa4ePeZbEHCxDY38js4oaiq9qoM8VNY/znhYdQfkJywrK513l69BwLbnkvS9UvQKV/dkwFBa2ozcDSoJyL9dRFIxJUF16TQ+lk+9cGgArBFRIGvOQqyGOkCCL31KbjyE5TOoAFG1jzhNhsNlmrD6bHxzZKWckpTc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779226663; c=relaxed/simple; bh=f6d+24L2K8ABRa5T3Wm3DqNiWpNQRl2Q8qj6hYZRXkw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=OPaeKgdFKSQR5AxItRzQGWYqlgHU9ENEDsL6Kz1wnQcvg+d86rrn4sY9RHMEFmMZ0HyvWc9PMYtYLibDxp2MlxnXdfryM+mn/lONzuCvkxgEjpqvqHJFZs40MzWFxMhwQzxS8QMJGSkL0zGODxoT37KBW7s/U5jzmvX4sDxVJb8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 Received: by smtp.kernel.org (Postfix) with ESMTPSA id 453F21F000E9; Tue, 19 May 2026 21:37:42 +0000 (UTC) From: Dave Jiang To: linux-cxl@vger.kernel.org Cc: djbw@kernel.org, dave@stgolabs.net, jic23@kernel.org, alison.schofield@intel.com, vishal.l.verma@intel.com Subject: [PATCH v2 2/6] cxl/test: Add type2 support for mock CFMWS0 Date: Tue, 19 May 2026 14:37:29 -0700 Message-ID: <20260519213734.69737-3-dave.jiang@intel.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260519213734.69737-1-dave.jiang@intel.com> References: <20260519213734.69737-1-dave.jiang@intel.com> Precedence: bulk X-Mailing-List: linux-cxl@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add a module parameter 'type2_test' for triggering type2 test support in cxl_test. Setup the CFMWS0 configuration to be type2 when 'type2_test' is set. Signed-off-by: Dave Jiang --- v2: - Add exclusive module check --- tools/testing/cxl/test/cxl.c | 29 ++++++++++++++++++++++++++++- 1 file changed, 28 insertions(+), 1 deletion(-) diff --git a/tools/testing/cxl/test/cxl.c b/tools/testing/cxl/test/cxl.c index e60cd0b2ac7b..4893933d6789 100644 --- a/tools/testing/cxl/test/cxl.c +++ b/tools/testing/cxl/test/cxl.c @@ -17,6 +17,7 @@ static int interleave_arithmetic; static bool extended_linear_cache; static bool fail_autoassemble; +static bool type2_test; #define FAKE_QTG_ID 42 @@ -384,6 +385,19 @@ static struct { }, }; +static struct acpi_cedt_cfmws type2_cfmws0 = { + .header = { + .type = ACPI_CEDT_TYPE_CFMWS, + .length = sizeof(mock_cedt.cfmws0), + }, + .interleave_ways = 0, + .granularity = 4, + .restrictions = ACPI_CEDT_CFMWS_RESTRICT_DEVMEM | + ACPI_CEDT_CFMWS_RESTRICT_VOLATILE, + .qtg_id = FAKE_QTG_ID, + .window_size = SZ_256M * 4, +}; + struct acpi_cedt_cfmws *mock_cfmws[] = { [0] = &mock_cedt.cfmws0.cfmws, [1] = &mock_cedt.cfmws1.cfmws, @@ -472,6 +486,11 @@ static void cfmws_elc_update(struct acpi_cedt_cfmws *window, int index) window->window_size = mock_auto_region_size * 2; } +static void update_type2_cfmws(void) +{ + memcpy(&mock_cedt.cfmws0.cfmws, &type2_cfmws0, sizeof(type2_cfmws0)); +} + static int populate_cedt(void) { struct cxl_mock_res *res; @@ -493,10 +512,14 @@ static int populate_cedt(void) chbs->length = size; } + if (type2_test) + update_type2_cfmws(); + for (i = cfmws_start; i <= cfmws_end; i++) { struct acpi_cedt_cfmws *window = mock_cfmws[i]; - cfmws_elc_update(window, i); + if (i == 0 && !type2_test) + cfmws_elc_update(window, i); res = alloc_mock_res(window->window_size, SZ_256M); if (!res) return -ENOMEM; @@ -1877,6 +1900,8 @@ bool __init have_multiple_modparms(void) count++; if (fail_autoassemble) count++; + if (type2_test) + count++; return count > 1; } @@ -2113,6 +2138,8 @@ module_param(extended_linear_cache, bool, 0444); MODULE_PARM_DESC(extended_linear_cache, "Enable extended linear cache support"); module_param(fail_autoassemble, bool, 0444); MODULE_PARM_DESC(fail_autoassemble, "Simulate missing member of an auto-region"); +module_param(type2_test, bool, 0444); +MODULE_PARM_DESC(type2_test, "Enable type 2 support testing"); module_init(cxl_test_init); module_exit(cxl_test_exit); MODULE_LICENSE("GPL v2"); -- 2.54.0