diff options
| author | David S. Miller <davem@sunset.davemloft.net> | 2006-02-09 17:21:53 -0800 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-03-20 01:12:06 -0800 |
| commit | 618e9ed98aed924a1fc664eb6522db4a5e927043 (patch) | |
| tree | 08ace6185b8f9709cb22a23d329def1dae622666 /arch/sparc64/mm | |
| parent | aa9143b9719c07fb6f1f6207790c9c5086ae07e7 (diff) | |
[SPARC64]: Hypervisor TSB context switching.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64/mm')
| -rw-r--r-- | arch/sparc64/mm/tsb.c | 48 |
1 files changed, 47 insertions, 1 deletions
diff --git a/arch/sparc64/mm/tsb.c b/arch/sparc64/mm/tsb.c index 2cc8e6528c63..6ae2a5a702cb 100644 --- a/arch/sparc64/mm/tsb.c +++ b/arch/sparc64/mm/tsb.c @@ -149,7 +149,7 @@ static void setup_tsb_params(struct mm_struct *mm, unsigned long tsb_bytes) BUG(); }; - if (tlb_type == cheetah_plus) { + if (tlb_type == cheetah_plus || tlb_type == hypervisor) { /* Physical mapping, no locked TLB entry for TSB. */ tsb_reg |= tsb_paddr; @@ -166,6 +166,52 @@ static void setup_tsb_params(struct mm_struct *mm, unsigned long tsb_bytes) mm->context.tsb_map_pte = tte; } + /* Setup the Hypervisor TSB descriptor. */ + if (tlb_type == hypervisor) { + struct hv_tsb_descr *hp = &mm->context.tsb_descr; + + switch (PAGE_SIZE) { + case 8192: + default: + hp->pgsz_idx = HV_PGSZ_IDX_8K; + break; + + case 64 * 1024: + hp->pgsz_idx = HV_PGSZ_IDX_64K; + break; + + case 512 * 1024: + hp->pgsz_idx = HV_PGSZ_IDX_512K; + break; + + case 4 * 1024 * 1024: + hp->pgsz_idx = HV_PGSZ_IDX_4MB; + break; + }; + hp->assoc = 1; + hp->num_ttes = tsb_bytes / 16; + hp->ctx_idx = 0; + switch (PAGE_SIZE) { + case 8192: + default: + hp->pgsz_mask = HV_PGSZ_MASK_8K; + break; + + case 64 * 1024: + hp->pgsz_mask = HV_PGSZ_MASK_64K; + break; + + case 512 * 1024: + hp->pgsz_mask = HV_PGSZ_MASK_512K; + break; + + case 4 * 1024 * 1024: + hp->pgsz_mask = HV_PGSZ_MASK_4MB; + break; + }; + hp->tsb_base = tsb_paddr; + hp->resv = 0; + } } /* The page tables are locked against modifications while this |