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cxl/test: Add test for module parameters

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Add a test for module paraters during module init to make sure that
only one is activated.

[dj: Dropped counting fail_autoassemble modparm. (Alison) ]

Suggested-by: Alison Schofield <alison.schofield@intel.com>
Tested-by: Alison Schofield <alison.schofield@intel.com>
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Link: https://patch.msgid.link/20260629221104.3891733-2-dave.jiang@intel.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
This commit is contained in:
Dave Jiang 2026-06-29 15:10:58 -07:00
parent 96ddf1af34
commit afae0fa7c6
3 changed files with 22 additions and 1 deletions
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18
tools/testing/cxl/test/cxl.c
View File

@ -1827,11 +1827,29 @@ static struct attribute *cxl_acpi_attrs[] = {
};
ATTRIBUTE_GROUPS(cxl_acpi);
static bool __init have_multiple_modparms(void)
{
int count = 0;
if (interleave_arithmetic)
count++;
if (extended_linear_cache)
count++;
if (hmem_test)
count++;
return count > 1;
}
static __init int cxl_test_init(void)
{
int rc, i;
struct range mappable;
/* Enforce a single module param active at a time */
if (have_multiple_modparms())
return -EINVAL;
if (!IS_ALIGNED(mock_auto_region_size, PMD_SIZE)) {
pr_err_once("mock_auto_region_size %d must be PMD-aligned\n",
mock_auto_region_size);

3
tools/testing/cxl/test/hmem_test.c
View File

@ -3,8 +3,9 @@
#include <linux/moduleparam.h>
#include <linux/workqueue.h>
#include "../../../drivers/dax/bus.h"
#include "mock.h"
static bool hmem_test;
bool hmem_test;
static void hmem_test_work(struct work_struct *work)
{

2
tools/testing/cxl/test/mock.h
View File

@ -5,6 +5,8 @@
#include <linux/dax.h>
#include <cxl.h>
extern bool hmem_test;
struct cxl_mock_ops {
struct list_head list;
bool (*is_mock_adev)(struct acpi_device *dev);