asm: Add POWER9 case to init_shared_sprs
For now, setup the HID and HMEER. We'll add more as we get
good default values from HW.
@@ -670,6 +670,8 @@ init_shared_sprs:
beq 3f
cmpwi cr0,%r3,PVR_TYPE_P8NVL
beq 3f
+ cmpwi cr0,%r3,PVR_TYPE_P9
+ beq 4f
/* Unsupported CPU type... what do we do ? */
b 9f
@@ -718,6 +720,28 @@ init_shared_sprs:
/* RPR (per-LPAR but let's treat it as replicated for now) */
LOAD_IMM64(%r3,0x00000103070F1F3F)
mtspr SPR_RPR,%r3
+ b 9f
+
+4: /* P9 */
+ /* HID0: Clear bit 5 (enable core recovery)
+ * Clear bit 4 (HILE)
+ */
+ mfspr %r3,SPR_HID0
+ li %r0,1
+ sldi %r4,%r0,(63-5)
+ sldi %r5,%r0,(63-4)
+ or %r0,%r4,%r5,
+ andc %r3,%r3,%r0
+ sync
+ mtspr SPR_HID0,%r3
+ isync
+ /* HMEER: Enable HMIs for core recovery and TOD errors. */
+ LOAD_IMM64(%r0,SPR_HMEER_HMI_ENABLE_MASK)
+ mfspr %r3,SPR_HMEER
+ or %r3,%r3,%r0
+ sync
+ mtspr SPR_HMEER,%r3
+ isync
9: blr
.global init_replicated_sprs
