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cxl/test: Add support for acpi extended linear cache

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Add the mock wrappers for hmat_get_extended_linear_cache_size() in order
to emulate the ACPI helper function for the regions that are mock'd by
cxl_test.

Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Tested-by: Alison Schofield <alison.schofield@intel.com>
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Reviewed-by: Fabio M. De Francesco <fabio.m.de.francesco@linux.intel.com>
Link: https://patch.msgid.link/20251117144611.903692-4-dave.jiang@intel.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
This commit is contained in:
Dave Jiang
2025-11-17 07:46:11 -07:00
parent 4b1c0466c8
commit 68f4a852e1
4 changed files with 45 additions and 0 deletions
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1
tools/testing/cxl/Kbuild
View File

@@ -11,6 +11,7 @@ ldflags-y += --wrap=cxl_rcd_component_reg_phys
ldflags-y += --wrap=cxl_endpoint_parse_cdat
ldflags-y += --wrap=cxl_dport_init_ras_reporting
ldflags-y += --wrap=devm_cxl_endpoint_decoders_setup
ldflags-y += --wrap=hmat_get_extended_linear_cache_size
DRIVERS := ../../../drivers
CXL_SRC := $(DRIVERS)/cxl

21
tools/testing/cxl/test/cxl.c
View File

@@ -612,6 +612,25 @@ mock_acpi_evaluate_integer(acpi_handle handle, acpi_string pathname,
return AE_OK;
}
static int
mock_hmat_get_extended_linear_cache_size(struct resource *backing_res,
int nid, resource_size_t *cache_size)
{
struct acpi_cedt_cfmws *window = mock_cfmws[0];
struct resource cfmws0_res =
DEFINE_RES_MEM(window->base_hpa, window->window_size);
if (!extended_linear_cache ||
!resource_contains(&cfmws0_res, backing_res)) {
return hmat_get_extended_linear_cache_size(backing_res,
nid, cache_size);
}
*cache_size = mock_auto_region_size;
return 0;
}
static struct pci_bus mock_pci_bus[NR_BRIDGES];
static struct acpi_pci_root mock_pci_root[ARRAY_SIZE(mock_pci_bus)] = {
[0] = {
@@ -1140,6 +1159,8 @@ static struct cxl_mock_ops cxl_mock_ops = {
.devm_cxl_port_enumerate_dports = mock_cxl_port_enumerate_dports,
.cxl_endpoint_parse_cdat = mock_cxl_endpoint_parse_cdat,
.devm_cxl_add_dport_by_dev = mock_cxl_add_dport_by_dev,
.hmat_get_extended_linear_cache_size =
mock_hmat_get_extended_linear_cache_size,
.list = LIST_HEAD_INIT(cxl_mock_ops.list),
};

20
tools/testing/cxl/test/mock.c
View File

@@ -111,6 +111,26 @@ acpi_status __wrap_acpi_evaluate_integer(acpi_handle handle,
}
EXPORT_SYMBOL(__wrap_acpi_evaluate_integer);
int __wrap_hmat_get_extended_linear_cache_size(struct resource *backing_res,
int nid,
resource_size_t *cache_size)
{
int index, rc;
struct cxl_mock_ops *ops = get_cxl_mock_ops(&index);
if (ops)
rc = ops->hmat_get_extended_linear_cache_size(backing_res, nid,
cache_size);
else
rc = hmat_get_extended_linear_cache_size(backing_res, nid,
cache_size);
put_cxl_mock_ops(index);
return rc;
}
EXPORT_SYMBOL_GPL(__wrap_hmat_get_extended_linear_cache_size);
struct acpi_pci_root *__wrap_acpi_pci_find_root(acpi_handle handle)
{
int index;

3
tools/testing/cxl/test/mock.h
View File

@@ -25,6 +25,9 @@ struct cxl_mock_ops {
void (*cxl_endpoint_parse_cdat)(struct cxl_port *port);
struct cxl_dport *(*devm_cxl_add_dport_by_dev)(struct cxl_port *port,
struct device *dport_dev);
int (*hmat_get_extended_linear_cache_size)(struct resource *backing_res,
int nid,
resource_size_t *cache_size);
};
void register_cxl_mock_ops(struct cxl_mock_ops *ops);