diff options
| author | Nicholas Piggin <npiggin@gmail.com> | 2017-10-24 21:44:44 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-11-10 22:11:35 +1100 |
| commit | 1696d0fb7fcd18160c9cc92a3f2b2d68e6923dd8 (patch) | |
| tree | 1f2788739eba799f1a06e5d5ec17328b758d27c0 /arch/powerpc/kernel/setup.h | |
| parent | 339a3293f4e493a6c40f71e4faab0c8389174313 (diff) | |
powerpc/64: Set DSCR default initially from SPR
Take the DSCR value set by firmware as the dscr_default value,
rather than zero.
POWER9 recommends DSCR default to a non-zero value.
Signed-off-by: From: Nicholas Piggin <npiggin@gmail.com>
[mpe: Make record_spr_defaults() __init]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel/setup.h')
| -rw-r--r-- | arch/powerpc/kernel/setup.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/setup.h b/arch/powerpc/kernel/setup.h index cfba134b3024..21c18071d9d5 100644 --- a/arch/powerpc/kernel/setup.h +++ b/arch/powerpc/kernel/setup.h @@ -45,6 +45,12 @@ void emergency_stack_init(void); static inline void emergency_stack_init(void) { }; #endif +#ifdef CONFIG_PPC64 +void record_spr_defaults(void); +#else +static inline void record_spr_defaults(void) { }; +#endif + /* * Having this in kvm_ppc.h makes include dependencies too * tricky to solve for setup-common.c so have it here. |