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ras: acpi/apei: cper: add support for generic data v3 structure

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The ACPI 6.1 spec adds a new revision of the generic error data
entry structure. Add support to handle the new structure as well
as properly verify and iterate through the generic data entries.

Signed-off-by: Tyler Baicar <[email protected]>
CC: Jonathan (Zhixiong) Zhang <[email protected]>
Signed-off-by: Will Deacon <[email protected]>
This commit is contained in:
Tyler Baicar 2017-06-21 12:17:05 -06:00 • committed by Will Deacon
commit bbcc2e7b64
3 changed files with 63 additions and 21 deletions
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36
include/acpi/ghes.h
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@ -73,3 +73,39 @@ static inline void ghes_edac_unregister(struct ghes *ghes)
{
}
#endif
static inline int acpi_hest_get_version(struct acpi_hest_generic_data *gdata)
{
return gdata->revision >> 8;
}
static inline void *acpi_hest_get_payload(struct acpi_hest_generic_data *gdata)
{
if (acpi_hest_get_version(gdata) >= 3)
return (void *)(((struct acpi_hest_generic_data_v300 *)(gdata)) + 1);
return gdata + 1;
}
static inline int acpi_hest_get_error_length(struct acpi_hest_generic_data *gdata)
{
return ((struct acpi_hest_generic_data *)(gdata))->error_data_length;
}
static inline int acpi_hest_get_size(struct acpi_hest_generic_data *gdata)
{
if (acpi_hest_get_version(gdata) >= 3)
return sizeof(struct acpi_hest_generic_data_v300);
return sizeof(struct acpi_hest_generic_data);
}
static inline int acpi_hest_get_record_size(struct acpi_hest_generic_data *gdata)
{
return (acpi_hest_get_size(gdata) + acpi_hest_get_error_length(gdata));
}
static inline void *acpi_hest_get_next(struct acpi_hest_generic_data *gdata)
{
return (void *)(gdata) + acpi_hest_get_record_size(gdata);
}