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acpi, nfit: add support for NVDIMM_FAMILY_INTEL v1.6 DSMs

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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>
This commit is contained in:
Dan Williams 2017-10-20 15:39:43 -07:00
parent b9b1504d3c
commit 11e1427016
2 changed files with 65 additions and 6 deletions
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45
drivers/acpi/nfit/core.c
View file

@ -370,6 +370,32 @@ static union acpi_object *acpi_label_info(acpi_handle handle)
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 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm,
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 @@ static int acpi_nfit_add_dimm(struct acpi_nfit_desc *acpi_desc,
* 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 @@ static int acpi_nfit_add_dimm(struct acpi_nfit_desc *acpi_desc,
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 @@ static int acpi_nfit_add_dimm(struct acpi_nfit_desc *acpi_desc,
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);

26
drivers/acpi/nfit/nfit.h
View file

@ -24,7 +24,7 @@
/* ACPI 6.1 */
#define UUID_NFIT_BUS "2f10e7a4-9e91-11e4-89d3-123b93f75cba"
/* http://pmem.io/documents/NVDIMM_DSM_Interface_Example.pdf */
/* http://pmem.io/documents/NVDIMM_DSM_Interface-V1.6.pdf */
#define UUID_NFIT_DIMM "4309ac30-0d11-11e4-9191-0800200c9a66"
/* https://github.com/HewlettPackard/hpe-nvm/blob/master/Documentation/ */
@ -38,12 +38,36 @@
| ACPI_NFIT_MEM_RESTORE_FAILED | ACPI_NFIT_MEM_FLUSH_FAILED \
| ACPI_NFIT_MEM_NOT_ARMED | ACPI_NFIT_MEM_MAP_FAILED)
#define NVDIMM_FAMILY_MAX NVDIMM_FAMILY_MSFT
#define NVDIMM_STANDARD_CMDMASK \
(1 << ND_CMD_SMART | 1 << ND_CMD_SMART_THRESHOLD | 1 << ND_CMD_DIMM_FLAGS \
| 1 << ND_CMD_GET_CONFIG_SIZE | 1 << ND_CMD_GET_CONFIG_DATA \
| 1 << ND_CMD_SET_CONFIG_DATA | 1 << ND_CMD_VENDOR_EFFECT_LOG_SIZE \
| 1 << ND_CMD_VENDOR_EFFECT_LOG | 1 << ND_CMD_VENDOR)
/*
* Command numbers that the kernel needs to know about to handle
* non-default DSM revision ids
*/
enum nvdimm_family_cmds {
NVDIMM_INTEL_GET_MODES = 11,
NVDIMM_INTEL_GET_FWINFO = 12,
NVDIMM_INTEL_START_FWUPDATE = 13,
NVDIMM_INTEL_SEND_FWUPDATE = 14,
NVDIMM_INTEL_FINISH_FWUPDATE = 15,
NVDIMM_INTEL_QUERY_FWUPDATE = 16,
NVDIMM_INTEL_SET_THRESHOLD = 17,
NVDIMM_INTEL_INJECT_ERROR = 18,
};
#define NVDIMM_INTEL_CMDMASK \
(NVDIMM_STANDARD_CMDMASK | 1 << NVDIMM_INTEL_GET_MODES \
| 1 << NVDIMM_INTEL_GET_FWINFO | 1 << NVDIMM_INTEL_START_FWUPDATE \
| 1 << NVDIMM_INTEL_SEND_FWUPDATE | 1 << NVDIMM_INTEL_FINISH_FWUPDATE \
| 1 << NVDIMM_INTEL_QUERY_FWUPDATE | 1 << NVDIMM_INTEL_SET_THRESHOLD \
| 1 << NVDIMM_INTEL_INJECT_ERROR)
enum nfit_uuids {
/* for simplicity alias the uuid index with the family id */
NFIT_DEV_DIMM = NVDIMM_FAMILY_INTEL,