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[IA64] Add API for allocating Dynamic TR resource.

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Dynamic TR resource should be managed in the uniform way.
Add two interfaces for kernel:
ia64_itr_entry: Allocate a (pair of) TR for caller.
ia64_ptr_entry: Purge a (pair of ) TR by caller.

Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com>
Signed-off-by: Anthony Xu <anthony.xu@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
Xiantao Zhang
2008-04-03 11:02:58 -07:00
committed by Tony Luck
parent 9597362d35
commit 96651896b8
5 changed files with 279 additions and 0 deletions
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5
arch/ia64/kernel/mca_asm.S
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@@ -219,8 +219,13 @@ ia64_reload_tr:
mov r20=IA64_TR_CURRENT_STACK
;;
itr.d dtr[r20]=r16
GET_THIS_PADDR(r2, ia64_mca_tr_reload)
mov r18 = 1
;;
srlz.d
;;
st8 [r2] =r18
;;
done_tlb_purge_and_reload: