diff options
| author | Nicholas Piggin <npiggin@gmail.com> | 2017-04-19 05:12:17 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-05-03 20:45:55 +1000 |
| commit | 700b7eadd5625d22b8235fb21259b3d7d564c000 (patch) | |
| tree | dfc4d8ea12ce0770a45761adef12fe46194d4622 /arch | |
| parent | 6b3d12a948d27977816a15eb48409a298902a548 (diff) | |
| download | linux-700b7eadd5625d22b8235fb21259b3d7d564c000.tar.bz2 | |
powerpc/64s: Power9 has no LPCR[VRMASD] field so don't set it
Power9/ISAv3 has no VRMASD field in LPCR, we shouldn't be setting reserved bits,
so don't set them on Power9.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/kernel/cpu_setup_power.S | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/arch/powerpc/kernel/cpu_setup_power.S b/arch/powerpc/kernel/cpu_setup_power.S index 1fce4ddd2e6c..10cb2896b2ae 100644 --- a/arch/powerpc/kernel/cpu_setup_power.S +++ b/arch/powerpc/kernel/cpu_setup_power.S @@ -30,7 +30,7 @@ _GLOBAL(__setup_cpu_power7) mtspr SPRN_LPID,r0 mfspr r3,SPRN_LPCR li r4,(LPCR_LPES1 >> LPCR_LPES_SH) - bl __init_LPCR + bl __init_LPCR_ISA206 bl __init_tlb_power7 mtlr r11 blr @@ -44,7 +44,7 @@ _GLOBAL(__restore_cpu_power7) mtspr SPRN_LPID,r0 mfspr r3,SPRN_LPCR li r4,(LPCR_LPES1 >> LPCR_LPES_SH) - bl __init_LPCR + bl __init_LPCR_ISA206 bl __init_tlb_power7 mtlr r11 blr @@ -62,7 +62,7 @@ _GLOBAL(__setup_cpu_power8) mfspr r3,SPRN_LPCR ori r3, r3, LPCR_PECEDH li r4,0 /* LPES = 0 */ - bl __init_LPCR + bl __init_LPCR_ISA206 bl __init_HFSCR bl __init_tlb_power8 bl __init_PMU_HV @@ -84,7 +84,7 @@ _GLOBAL(__restore_cpu_power8) mfspr r3,SPRN_LPCR ori r3, r3, LPCR_PECEDH li r4,0 /* LPES = 0 */ - bl __init_LPCR + bl __init_LPCR_ISA206 bl __init_HFSCR bl __init_tlb_power8 bl __init_PMU_HV @@ -108,7 +108,7 @@ _GLOBAL(__setup_cpu_power9) LOAD_REG_IMMEDIATE(r4, LPCR_UPRT | LPCR_HR) andc r3, r3, r4 li r4,0 /* LPES = 0 */ - bl __init_LPCR + bl __init_LPCR_ISA300 bl __init_HFSCR bl __init_tlb_power9 bl __init_PMU_HV @@ -132,7 +132,7 @@ _GLOBAL(__restore_cpu_power9) LOAD_REG_IMMEDIATE(r4, LPCR_UPRT | LPCR_HR) andc r3, r3, r4 li r4,0 /* LPES = 0 */ - bl __init_LPCR + bl __init_LPCR_ISA300 bl __init_HFSCR bl __init_tlb_power9 bl __init_PMU_HV @@ -150,7 +150,7 @@ __init_hvmode_206: std r5,CPU_SPEC_FEATURES(r4) blr -__init_LPCR: +__init_LPCR_ISA206: /* Setup a sane LPCR: * Called with initial LPCR in R3 and desired LPES 2-bit value in R4 * @@ -163,6 +163,11 @@ __init_LPCR: * * Other bits untouched for now */ + li r5,0x10 + rldimi r3,r5, LPCR_VRMASD_SH, 64-LPCR_VRMASD_SH-5 + + /* POWER9 has no VRMASD */ +__init_LPCR_ISA300: rldimi r3,r4, LPCR_LPES_SH, 64-LPCR_LPES_SH-2 ori r3,r3,(LPCR_PECE0|LPCR_PECE1|LPCR_PECE2) li r5,4 @@ -170,8 +175,6 @@ __init_LPCR: clrrdi r3,r3,1 /* clear HDICE */ li r5,4 rldimi r3,r5, LPCR_VC_SH, 0 - li r5,0x10 - rldimi r3,r5, LPCR_VRMASD_SH, 64-LPCR_VRMASD_SH-5 mtspr SPRN_LPCR,r3 isync blr |