x86/mce: Add macros for the corrected error count bit field

The bit field [52:38] of MCi_STATUS contains the corrected error count. Add {*_SHIFT|*_MASK|*_CEC(c)} macros for it. [ bp: use GENMASK_ULL. ] Signed-off-by: Qiuxu Zhuo <[email protected]> Signed-off-by: Tony Luck <[email protected]> Signed-off-by: Borislav Petkov <[email protected]> Cc: Aristeu Rozanski <[email protected]> Cc: Mauro Carvalho Chehab <[email protected]> Cc: [email protected] Cc: [email protected] Link: https://lkml.kernel.org/r/20180925000343.GB5998@agluck-desk
berg · Sep 27, 2018 · e5276b1 · e5276b1
1 parent 93ac575
commit e5276b1
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h
@@ -39,6 +39,9 @@
 #define MCI_STATUS_PCC		BIT_ULL(57)  /* processor context corrupt */
 #define MCI_STATUS_S		BIT_ULL(56)  /* Signaled machine check */
 #define MCI_STATUS_AR		BIT_ULL(55)  /* Action required */
+#define MCI_STATUS_CEC_SHIFT	38           /* Corrected Error Count */
+#define MCI_STATUS_CEC_MASK	GENMASK_ULL(52,38)
+#define MCI_STATUS_CEC(c)	(((c) & MCI_STATUS_CEC_MASK) >> MCI_STATUS_CEC_SHIFT)
 
 /* AMD-specific bits */
 #define MCI_STATUS_TCC		BIT_ULL(55)  /* Task context corrupt */