Shubhakar Gowda wrote: > ACPI 6.6 defines DSM function index 0xA to Query Address Range Scrub > (ARS) error injection capabilities. This patch adds support for this > DSM function in the NFIT DSM mask so that userspace and ndctl tool can > detect platform support for Query ARS error injection capabilities features. > > The patch updates NFIT initialization to include DSM 0xA, logs > supported DSMs for debugging, and uses the existing DSM infrastructure. > No kernel ABI changes are introduced.
Is this a duplicate of... http://lore.kernel.org/[email protected] ? If so why? Ira > > Signed-off-by: Shubhakar Gowda <[email protected]> > --- > drivers/acpi/nfit/core.c | 7 ++++++- > 1 file changed, 6 insertions(+), 1 deletion(-) > > diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c > index 5a1ced5..6cc863e 100644 > --- a/drivers/acpi/nfit/core.c > +++ b/drivers/acpi/nfit/core.c > @@ -2113,6 +2113,8 @@ enum nfit_aux_cmds { > NFIT_CMD_ARS_INJECT_SET = 7, > NFIT_CMD_ARS_INJECT_CLEAR = 8, > NFIT_CMD_ARS_INJECT_GET = 9, > + /* ACPI 6.6: DSM function 0xA — Query ARS Error Inject Capabilities */ > + NFIT_CMD_ARS_QUERY_CAP = 10, > }; > > static void acpi_nfit_init_dsms(struct acpi_nfit_desc *acpi_desc) > @@ -2152,10 +2154,13 @@ static void acpi_nfit_init_dsms(struct acpi_nfit_desc > *acpi_desc) > (1 << NFIT_CMD_TRANSLATE_SPA) | > (1 << NFIT_CMD_ARS_INJECT_SET) | > (1 << NFIT_CMD_ARS_INJECT_CLEAR) | > - (1 << NFIT_CMD_ARS_INJECT_GET); > + (1 << NFIT_CMD_ARS_INJECT_GET) | > + (1 << NFIT_CMD_ARS_QUERY_CAP); > for_each_set_bit(i, &dsm_mask, BITS_PER_LONG) > if (acpi_check_dsm(adev->handle, guid, 1, 1ULL << i)) > set_bit(i, &acpi_desc->bus_dsm_mask); > + dev_dbg(acpi_desc->dev, "NFIT DSM mask detected: %#lx\n", > + acpi_desc->bus_dsm_mask); > > /* Enumerate allowed NVDIMM_BUS_FAMILY_INTEL commands */ > dsm_mask = NVDIMM_BUS_INTEL_FW_ACTIVATE_CMDMASK; > -- > 2.43.0 >
