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[IA64] Remove unused variables. init_mm and swapper_pg_dir.
Signed-off-by: Kouya Shimura <kouya@jp.fujitsu.com>
This commit is contained in:
awilliam@xenbuild.aw committed
1 parent
de32c22ad3
commit
ed6ccffbeb
4 files changed
+9
-22
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@@ -178,9 +178,11 @@ RestRR: \
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empty_zero_page:
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.skip PAGE_SIZE
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#ifndef XEN
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.global swapper_pg_dir
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swapper_pg_dir:
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.skip PAGE_SIZE
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#endif
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#if defined(XEN) && defined(CONFIG_VIRTUAL_FRAME_TABLE)
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.global frametable_pg_dir
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@@ -859,8 +859,8 @@ cpu_init (void)
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ia64_setreg(_IA64_REG_CR_DCR, ( IA64_DCR_DP | IA64_DCR_DK | IA64_DCR_DX | IA64_DCR_DR
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| IA64_DCR_DA | IA64_DCR_DD | IA64_DCR_LC));
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#endif
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atomic_inc(&init_mm.mm_count);
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#ifndef XEN
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atomic_inc(&init_mm.mm_count);
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current->active_mm = &init_mm;
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#endif
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#ifdef XEN
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@@ -2,24 +2,12 @@
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#include <xen/sched.h>
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#include <asm/desc.h>
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#define INIT_MM(name) \
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{ \
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.pgd = swapper_pg_dir, \
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.mm_users = ATOMIC_INIT(2), \
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.mm_count = ATOMIC_INIT(1), \
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.page_table_lock = SPIN_LOCK_UNLOCKED, \
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.mmlist = LIST_HEAD_INIT(name.mmlist), \
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}
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#define IDLE_VCPU(_v) \
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{ \
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processor: 0, \
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domain: 0 \
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}
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struct mm_struct init_mm = INIT_MM(init_mm);
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EXPORT_SYMBOL(init_mm);
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/*
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* Initial task structure.
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*
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@@ -116,6 +116,9 @@ ia64_ivt:
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// 0x0000 Entry 0 (size 64 bundles) VHPT Translation (8,20,47)
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ENTRY(vhpt_miss)
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DBG_FAULT(0)
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#ifdef XEN
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FAULT(0)
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#else
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/*
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* The VHPT vector is invoked when the TLB entry for the virtual page table
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* is missing. This happens only as a result of a previous
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@@ -141,11 +144,7 @@ ENTRY(vhpt_miss)
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;;
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rsm psr.dt // use physical addressing for data
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mov r31=pr // save the predicate registers
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#ifdef XEN
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movl r19=THIS_CPU(cpu_kr)+IA64_KR_PT_BASE_OFFSET;;
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#else
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mov r19=IA64_KR(PT_BASE) // get page table base address
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#endif
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shl r21=r16,3 // shift bit 60 into sign bit
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shr.u r17=r16,61 // get the region number into r17
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;;
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@@ -241,6 +240,7 @@ ENTRY(vhpt_miss)
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mov pr=r31,-1 // restore predicate registers
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rfi
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#endif
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END(vhpt_miss)
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.org ia64_ivt+0x400
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@@ -625,7 +625,7 @@ ENTRY(nested_dtlb_miss)
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mov b0=r30
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br.sptk.many b0 // return to continuation point
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;;
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#endif
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#else
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/*
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* In the absence of kernel bugs, we get here when the virtually mapped linear
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* page table is accessed non-speculatively (e.g., in the Dirty-bit, Instruction
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@@ -649,11 +649,7 @@ ENTRY(nested_dtlb_miss)
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* Clobbered: b0, r18, r19, r21, psr.dt (cleared)
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*/
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rsm psr.dt // switch to using physical data addressing
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#ifdef XEN
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movl r19=THIS_CPU(cpu_kr)+IA64_KR_PT_BASE_OFFSET;;
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#else
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mov r19=IA64_KR(PT_BASE) // get the page table base address
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#endif
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shl r21=r16,3 // shift bit 60 into sign bit
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;;
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shr.u r17=r16,61 // get the region number into r17
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@@ -688,6 +684,7 @@ ENTRY(nested_dtlb_miss)
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(p6) br.cond.spnt page_fault
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mov b0=r30
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br.sptk.many b0 // return to continuation point
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#endif
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END(nested_dtlb_miss)
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.org ia64_ivt+0x1800
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