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[SPARC64]: Hypervisor TSB context switching.

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Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2006-02-09 17:21:53 -08:00
parent aa9143b971
commit 618e9ed98a
4 changed files with 96 additions and 32 deletions
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48
arch/sparc64/mm/tsb.c
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@ -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;
}
}
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