From bc2a9650f089edb98cd62fc5768b88cdda08fa2c Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Thu, 9 Mar 2017 11:45:40 +1100 Subject: 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. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Stewart Smith --- asm/head.S | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'asm') diff --git a/asm/head.S b/asm/head.S index 23daa724..beb53550 100644 --- a/asm/head.S +++ b/asm/head.S @@ -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 -- cgit v1.2.1