diff options
Diffstat (limited to '')
| -rw-r--r-- | arch/powerpc/mm/tlb-radix.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/arch/powerpc/mm/tlb-radix.c b/arch/powerpc/mm/tlb-radix.c index ae2e799822bd..5e17c4e873a5 100644 --- a/arch/powerpc/mm/tlb-radix.c +++ b/arch/powerpc/mm/tlb-radix.c @@ -46,9 +46,20 @@ static inline void _tlbiel_pid(unsigned long pid, unsigned long ric) int set; asm volatile("ptesync": : :"memory"); - for (set = 0; set < POWER9_TLB_SETS_RADIX ; set++) { + + /* + * Flush the first set of the TLB, and if we're doing a RIC_FLUSH_ALL, + * also flush the entire Page Walk Cache. + */ + __tlbiel_pid(pid, 0, ric); + + if (ric == RIC_FLUSH_ALL) + /* For the remaining sets, just flush the TLB */ + ric = RIC_FLUSH_TLB; + + for (set = 1; set < POWER9_TLB_SETS_RADIX ; set++) __tlbiel_pid(pid, set, ric); - } + asm volatile("ptesync": : :"memory"); asm volatile(PPC_INVALIDATE_ERAT "; isync" : : :"memory"); } |