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nfit, address-range-scrub: introduce nfit_spa->ars_state

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In preparation for re-working the ARS implementation to better handle
short vs long ARS runs, introduce nfit_spa->ars_state. For now this just
replaces the nfit_spa->ars_required bit-field/flag, but going forward it
will be used to track ARS completion and make short vs long ARS
requests.

Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams
2018-04-02 15:40:30 -07:00
parent 243f29fe44
commit 14c73f997a
2 changed files with 18 additions and 9 deletions
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11
drivers/acpi/nfit/nfit.h
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@@ -117,10 +117,17 @@ enum nfit_dimm_notifiers {
NFIT_NOTIFY_DIMM_HEALTH = 0x81,
};
enum nfit_ars_state {
ARS_REQ,
ARS_DONE,
ARS_SHORT,
ARS_FAILED,
};
struct nfit_spa {
struct list_head list;
struct nd_region *nd_region;
unsigned int ars_required:1;
unsigned long ars_state;
u32 clear_err_unit;
u32 max_ars;
struct acpi_nfit_system_address spa[0];
@@ -243,7 +250,7 @@ struct nfit_blk {
extern struct list_head acpi_descs;
extern struct mutex acpi_desc_lock;
int acpi_nfit_ars_rescan(struct acpi_nfit_desc *acpi_desc, u8 flags);
int acpi_nfit_ars_rescan(struct acpi_nfit_desc *acpi_desc, unsigned long flags);
#ifdef CONFIG_X86_MCE
void nfit_mce_register(void);