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tools/testing/cxl: Make mock CEDT parsing more robust

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Accept any cxl_test topology device as the first argument in
cxl_chbs_context.

This is in preparation for reworking the detection of the component
registers across VH and RCH topologies. Move
mock_acpi_table_parse_cedt() beneath the definition of is_mock_port()
and use is_mock_port() instead of the explicit mock cxl_acpi device
check.

Acked-by: Alison Schofield <alison.schofield@intel.com>
Reviewed-by: Robert Richter <rrichter@amd.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/166993043433.1882361.17651413716599606118.stgit@dwillia2-xfh.jf.intel.com
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams 2022-12-01 13:33:54 -08:00
parent 4029c32fb6
commit 8b3b1c0dc5
2 changed files with 10 additions and 4 deletions
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4
drivers/cxl/acpi.c
View File

@ -70,6 +70,10 @@ static int cxl_acpi_cfmws_verify(struct device *dev,
return 0;
}
/*
* Note, @dev must be the first member, see 'struct cxl_chbs_context'
* and mock_acpi_table_parse_cedt()
*/
struct cxl_cfmws_context {
struct device *dev;
struct cxl_port *root_port;

10
tools/testing/cxl/test/cxl.c
View File

@ -320,10 +320,12 @@ static int populate_cedt(void)
return 0;
}
static bool is_mock_port(struct device *dev);
/*
* WARNING, this hack assumes the format of 'struct
* cxl_cfmws_context' and 'struct cxl_chbs_context' share the property that
* the first struct member is the device being probed by the cxl_acpi
* WARNING, this hack assumes the format of 'struct cxl_cfmws_context'
* and 'struct cxl_chbs_context' share the property that the first
* struct member is a cxl_test device being probed by the cxl_acpi
* driver.
*/
struct cxl_cedt_context {
@ -340,7 +342,7 @@ static int mock_acpi_table_parse_cedt(enum acpi_cedt_type id,
unsigned long end;
int i;
if (dev != &cxl_acpi->dev)
if (!is_mock_port(dev) && !is_mock_dev(dev))
return acpi_table_parse_cedt(id, handler_arg, arg);
if (id == ACPI_CEDT_TYPE_CHBS)