diff options
Diffstat (limited to 'arch/powerpc/platforms/pseries/lpar.c')
| -rw-r--r-- | arch/powerpc/platforms/pseries/lpar.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c index c2e13a51f369..251060cf1713 100644 --- a/arch/powerpc/platforms/pseries/lpar.c +++ b/arch/powerpc/platforms/pseries/lpar.c @@ -717,6 +717,29 @@ static int pseries_lpar_resize_hpt(unsigned long shift) return 0; } +/* Actually only used for radix, so far */ +static int pseries_lpar_register_process_table(unsigned long base, + unsigned long page_size, unsigned long table_size) +{ + long rc; + unsigned long flags = PROC_TABLE_NEW; + + if (radix_enabled()) + flags |= PROC_TABLE_RADIX | PROC_TABLE_GTSE; + for (;;) { + rc = plpar_hcall_norets(H_REGISTER_PROC_TBL, flags, base, + page_size, table_size); + if (!H_IS_LONG_BUSY(rc)) + break; + mdelay(get_longbusy_msecs(rc)); + } + if (rc != H_SUCCESS) { + pr_err("Failed to register process table (rc=%ld)\n", rc); + BUG(); + } + return rc; +} + void __init hpte_init_pseries(void) { mmu_hash_ops.hpte_invalidate = pSeries_lpar_hpte_invalidate; @@ -731,6 +754,12 @@ void __init hpte_init_pseries(void) mmu_hash_ops.resize_hpt = pseries_lpar_resize_hpt; } +void radix_init_pseries(void) +{ + pr_info("Using radix MMU under hypervisor\n"); + register_process_table = pseries_lpar_register_process_table; +} + #ifdef CONFIG_PPC_SMLPAR #define CMO_FREE_HINT_DEFAULT 1 static int cmo_free_hint_flag = CMO_FREE_HINT_DEFAULT; |