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Commit 1273c253 authored by Vishal Verma's avatar Vishal Verma Committed by Dan Williams
Browse files

tools/testing/nvdimm: advertise a write cache for nfit_test 



Commit 546eb031 "libnvdimm, pmem: Do not flush power-fail protected CPU caches"
fixed the write_cache detection to correctly show the lack of a write
cache based on the platform capabilities described in the ACPI NFIT. The
nfit_test unit tests expected a write cache to be present, so change the
nfit test namespaces to only advertise a persistence domain limited to
the memory controller. This allows the kernel to show a write_cache
attribute, and the test behaviour remains unchanged.

Signed-off-by: default avatarVishal Verma <vishal.l.verma@intel.com>
Reviewed-by: default avatarRoss Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
parent c1985cef

tools/testing/nvdimm/test/nfit.c

+1 −2
Original line number Diff line number Diff line
@@ -1991,8 +1991,7 @@ static void nfit_test0_setup(struct nfit_test *t) 
	pcap->header.type = ACPI_NFIT_TYPE_CAPABILITIES;

	pcap->header.length = sizeof(*pcap);

	pcap->highest_capability = 1;

	pcap->capabilities = ACPI_NFIT_CAPABILITY_CACHE_FLUSH |

		ACPI_NFIT_CAPABILITY_MEM_FLUSH;

	pcap->capabilities = ACPI_NFIT_CAPABILITY_MEM_FLUSH;

	offset += pcap->header.length;



	if (t->setup_hotplug) {