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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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21
tools/testing/cxl/test/cxl.c
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@@ -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),
};