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cxl/test: Add type2 support for mock CFMWS0

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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.

Tested-by: Alison Schofield <alison.schofield@intel.com>
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Link: https://patch.msgid.link/20260629221104.3891733-3-dave.jiang@intel.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
This commit is contained in:
Dave Jiang 2026-06-29 15:10:59 -07:00
parent afae0fa7c6
commit fc8fc576d9
1 changed files with 28 additions and 1 deletions
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29
tools/testing/cxl/test/cxl.c
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@ -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,
@ -476,6 +490,11 @@ 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;
@ -497,11 +516,15 @@ 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];
int align = SZ_256M;
cfmws_elc_update(window, i);
if (i == 0 && !type2_test)
cfmws_elc_update(window, i);
if (window->restrictions & ACPI_CEDT_CFMWS_RESTRICT_VOLATILE)
align = max_t(int, SZ_256M, PMD_SIZE);
res = alloc_mock_res(window->window_size, align);
@ -1837,6 +1860,8 @@ static bool __init have_multiple_modparms(void)
count++;
if (hmem_test)
count++;
if (type2_test)
count++;
return count > 1;
}
@ -2067,6 +2092,8 @@ 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");