diff options
| author | Jithu Joseph <jithu.joseph@intel.com> | 2023-03-21 17:33:57 -0700 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2023-03-27 16:10:20 +0200 |
| commit | fed696ce13662de882c8708ea7d0664d8e9e178b (patch) | |
| tree | 2537c2bd4b4675b3d7e0e588269faa7f5c0e8167 /drivers/platform/x86/intel/ifs/ifs.h | |
| parent | 5210fb4e18806648b5e87ecc206f1b35e1253401 (diff) | |
platform/x86/intel/ifs: Implement Array BIST test
Array BIST test (for a particular core) is triggered by writing
to MSR_ARRAY_BIST from one sibling of the core.
This will initiate a test for all supported arrays on that
CPU. Array BIST test may be aborted before completing all the
arrays in the event of an interrupt or other reasons.
In this case, kernel will restart the test from that point
onwards. Array test will also be aborted when the test fails,
in which case the test is stopped immediately without further
retry.
Signed-off-by: Jithu Joseph <jithu.joseph@intel.com>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Link: https://lore.kernel.org/r/20230322003359.213046-8-jithu.joseph@intel.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'drivers/platform/x86/intel/ifs/ifs.h')
| -rw-r--r-- | drivers/platform/x86/intel/ifs/ifs.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/platform/x86/intel/ifs/ifs.h b/drivers/platform/x86/intel/ifs/ifs.h index a7d87fb4c412..048131df13bc 100644 --- a/drivers/platform/x86/intel/ifs/ifs.h +++ b/drivers/platform/x86/intel/ifs/ifs.h @@ -127,6 +127,7 @@ #include <linux/device.h> #include <linux/miscdevice.h> +#define MSR_ARRAY_BIST 0x00000105 #define MSR_COPY_SCAN_HASHES 0x000002c2 #define MSR_SCAN_HASHES_STATUS 0x000002c3 #define MSR_AUTHENTICATE_AND_COPY_CHUNK 0x000002c4 @@ -192,6 +193,17 @@ union ifs_status { }; }; +/* MSR_ARRAY_BIST bit fields */ +union ifs_array { + u64 data; + struct { + u32 array_bitmask; + u16 array_bank; + u16 rsvd :15; + u16 ctrl_result :1; + }; +}; + /* * Driver populated error-codes * 0xFD: Test timed out before completing all the chunks. |