acpi, nfit: add support for NVDIMM_FAMILY_INTEL v1.6 DSMs
Per v1.6 of the NVDIMM_FAMILY_INTEL command set [1] some of the new
commands require rev-id 2. In addition to enabling ND_CMD_CALL for these
new function numbers, add a lookup table for revision-ids by family
and function number.
[1]: http://pmem.io/documents/NVDIMM_DSM_Interface-V1.6.pdf
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
index 444832b..aa75d67 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -370,6 +370,32 @@
return pkg_to_buf(buf.pointer);
}
+static u8 nfit_dsm_revid(unsigned family, unsigned func)
+{
+ static const u8 revid_table[NVDIMM_FAMILY_MAX+1][32] = {
+ [NVDIMM_FAMILY_INTEL] = {
+ [NVDIMM_INTEL_GET_MODES] = 2,
+ [NVDIMM_INTEL_GET_FWINFO] = 2,
+ [NVDIMM_INTEL_START_FWUPDATE] = 2,
+ [NVDIMM_INTEL_SEND_FWUPDATE] = 2,
+ [NVDIMM_INTEL_FINISH_FWUPDATE] = 2,
+ [NVDIMM_INTEL_QUERY_FWUPDATE] = 2,
+ [NVDIMM_INTEL_SET_THRESHOLD] = 2,
+ [NVDIMM_INTEL_INJECT_ERROR] = 2,
+ },
+ };
+ u8 id;
+
+ if (family > NVDIMM_FAMILY_MAX)
+ return 0;
+ if (func > 31)
+ return 0;
+ id = revid_table[family][func];
+ if (id == 0)
+ return 1; /* default */
+ return id;
+}
+
int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm,
unsigned int cmd, void *buf, unsigned int buf_len, int *cmd_rc)
{
@@ -468,8 +494,15 @@
out_obj = acpi_label_write(handle, p->in_offset, p->in_length,
p->in_buf);
- } else
- out_obj = acpi_evaluate_dsm(handle, guid, 1, func, &in_obj);
+ } else {
+ u8 revid;
+
+ if (nfit_mem)
+ revid = nfit_dsm_revid(nfit_mem->family, func);
+ else
+ revid = 1;
+ out_obj = acpi_evaluate_dsm(handle, guid, revid, func, &in_obj);
+ }
if (!out_obj) {
dev_dbg(dev, "%s:%s _DSM failed cmd: %s\n", __func__, dimm_name,
@@ -1640,7 +1673,7 @@
* different command sets. Note, that checking for function0 (bit0)
* tells us if any commands are reachable through this GUID.
*/
- for (i = NVDIMM_FAMILY_INTEL; i <= NVDIMM_FAMILY_MSFT; i++)
+ for (i = 0; i <= NVDIMM_FAMILY_MAX; i++)
if (acpi_check_dsm(adev_dimm->handle, to_nfit_uuid(i), 1, 1))
if (family < 0 || i == default_dsm_family)
family = i;
@@ -1650,7 +1683,7 @@
if (override_dsm_mask && !disable_vendor_specific)
dsm_mask = override_dsm_mask;
else if (nfit_mem->family == NVDIMM_FAMILY_INTEL) {
- dsm_mask = 0x3fe;
+ dsm_mask = NVDIMM_INTEL_CMDMASK;
if (disable_vendor_specific)
dsm_mask &= ~(1 << ND_CMD_VENDOR);
} else if (nfit_mem->family == NVDIMM_FAMILY_HPE1) {
@@ -1670,7 +1703,9 @@
guid = to_nfit_uuid(nfit_mem->family);
for_each_set_bit(i, &dsm_mask, BITS_PER_LONG)
- if (acpi_check_dsm(adev_dimm->handle, guid, 1, 1ULL << i))
+ if (acpi_check_dsm(adev_dimm->handle, guid,
+ nfit_dsm_revid(nfit_mem->family, i),
+ 1ULL << i))
set_bit(i, &nfit_mem->dsm_mask);
obj = acpi_label_info(adev_dimm->handle);