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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [xen-unstable] [IA64] Accelerate mov to rr
# HG changeset patch
# User awilliam@xxxxxxxxxxx
# Node ID c8fa605f131fa9422d90f286445c909e63fd6f7a
# Parent 7c2a5f96a192a07cc73991a52ff3ffd80658cf94
[IA64] Accelerate mov to rr
Signed-off-by: Anthony Xu <anthony.xu@xxxxxxxxx>
---
xen/arch/ia64/asm-offsets.c | 1
xen/arch/ia64/vmx/optvfault.S | 109 +++++++++++++++++++++++++++++++++++-------
xen/arch/ia64/vmx/vmx_ivt.S | 6 +-
3 files changed, 98 insertions(+), 18 deletions(-)
diff -r 7c2a5f96a192 -r c8fa605f131f xen/arch/ia64/asm-offsets.c
--- a/xen/arch/ia64/asm-offsets.c Sat Oct 14 16:28:32 2006 -0600
+++ b/xen/arch/ia64/asm-offsets.c Sat Oct 14 16:34:41 2006 -0600
@@ -141,6 +141,7 @@ void foo(void)
DEFINE(SWITCH_MPTA_OFFSET,offsetof(struct vcpu ,arch.arch_vmx.mpta));
DEFINE(IA64_PT_REGS_R16_SLOT, (((offsetof(struct pt_regs,
r16)-sizeof(struct pt_regs))>>3)&0x3f));
DEFINE(IA64_VCPU_FLAGS_OFFSET,offsetof(struct vcpu
,arch.arch_vmx.flags));
+ DEFINE(IA64_VCPU_MODE_FLAGS_OFFSET,offsetof(struct vcpu,
arch.mode_flags));
BLANK();
diff -r 7c2a5f96a192 -r c8fa605f131f xen/arch/ia64/vmx/optvfault.S
--- a/xen/arch/ia64/vmx/optvfault.S Sat Oct 14 16:28:32 2006 -0600
+++ b/xen/arch/ia64/vmx/optvfault.S Sat Oct 14 16:34:41 2006 -0600
@@ -18,11 +18,12 @@
#define ACCE_MOV_FROM_AR
#define ACCE_MOV_FROM_RR
+#define ACCE_MOV_TO_RR
//mov r1=ar3
-GLOBAL_ENTRY(asm_mov_from_ar)
+GLOBAL_ENTRY(vmx_asm_mov_from_ar)
#ifndef ACCE_MOV_FROM_AR
- br.many vmx_vitualization_fault_back
+ br.many vmx_virtualization_fault_back
#endif
add r18=VCPU_VTM_OFFSET_OFS,r21
mov r19=ar.itc
@@ -39,19 +40,19 @@ GLOBAL_ENTRY(asm_mov_from_ar)
mov b0=r17
br.sptk.few b0
;;
-END(asm_mov_from_ar)
+END(vmx_asm_mov_from_ar)
// mov r1=rr[r3]
-GLOBAL_ENTRY(asm_mov_from_rr)
+GLOBAL_ENTRY(vmx_asm_mov_from_rr)
#ifndef ACCE_MOV_FROM_RR
- br.many vmx_vitualization_fault_back
+ br.many vmx_virtualization_fault_back
#endif
extr.u r16=r25,20,7
extr.u r17=r25,6,7
movl r20=asm_mov_from_reg
;;
- adds r30=asm_mov_from_rr_back_1-asm_mov_from_reg,r20
+ adds r30=vmx_asm_mov_from_rr_back_1-asm_mov_from_reg,r20
shladd r16=r16,4,r20
mov r24=b0
;;
@@ -59,7 +60,7 @@ GLOBAL_ENTRY(asm_mov_from_rr)
mov b0=r16
br.many b0
;;
-asm_mov_from_rr_back_1:
+vmx_asm_mov_from_rr_back_1:
adds r30=vmx_resume_to_guest-asm_mov_from_reg,r20
adds r22=asm_mov_to_reg-asm_mov_from_reg,r20
shr.u r26=r19,61
@@ -70,7 +71,86 @@ asm_mov_from_rr_back_1:
ld8 r19=[r27]
mov b0=r17
br.many b0
-END(asm_mov_from_rr)
+END(vmx_asm_mov_from_rr)
+
+
+// mov rr[r3]=r2
+GLOBAL_ENTRY(vmx_asm_mov_to_rr)
+#ifndef ACCE_MOV_TO_RR
+ br.many vmx_virtualization_fault_back
+#endif
+ extr.u r16=r25,20,7
+ extr.u r17=r25,13,7
+ movl r20=asm_mov_from_reg
+ ;;
+ adds r30=vmx_asm_mov_to_rr_back_1-asm_mov_from_reg,r20
+ shladd r16=r16,4,r20
+ mov r22=b0
+ ;;
+ add r27=VCPU_VRR0_OFS,r21
+ mov b0=r16
+ br.many b0
+ ;;
+vmx_asm_mov_to_rr_back_1:
+ adds r30=vmx_asm_mov_to_rr_back_2-asm_mov_from_reg,r20
+ shr.u r23=r19,61
+ shladd r17=r17,4,r20
+ ;;
+ //if rr7, go back
+ cmp.eq p6,p0=7,r23
+ (p6) br.cond.dpnt.many vmx_virtualization_fault_back
+ ;;
+ mov r28=r19
+ mov b0=r17
+ br.many b0
+vmx_asm_mov_to_rr_back_2:
+ adds r30=vmx_resume_to_guest-asm_mov_from_reg,r20
+ shladd r27=r23,3,r27
+ ;; // +starting_rid
+ st8 [r27]=r19
+ mov b0=r30
+ ;;
+ adds r16=IA64_VCPU_STARTING_RID_OFFSET,r21
+ ;;
+ ld4 r16=[r16]
+ ;;
+ shl r16=r16,8
+ ;;
+ add r19=r19,r16
+ ;; //mangling rid 1 and 3
+ extr.u r16=r19,8,8
+ extr.u r17=r19,24,8
+ extr.u r18=r19,2,6
+ ;;
+ dep r19=r16,r19,24,8
+ ;;
+ dep r19=r17,r19,8,8
+ ;; //set ve 1
+ dep r19=-1,r19,0,1
+ cmp.lt p6,p0=14,r18
+ ;;
+ (p6) mov r18=14
+ ;;
+ (p6) dep r19=r18,r19,2,6
+ ;;
+ cmp.eq p6,p0=0,r23
+ ;;
+ cmp.eq.or p6,p0=4,r23
+ ;;
+ adds r16=IA64_VCPU_MODE_FLAGS_OFFSET,r21
+ (p6) adds r17=IA64_VCPU_META_SAVED_RR0_OFFSET,r21
+ ;;
+ ld8 r16=[r16]
+ cmp.eq p7,p0=r0,r0
+ (p6) shladd r17=r23,1,r17
+ ;;
+ (p6) st8 [r17]=r19
+ (p6) tbit.nz p6,p7=r16,0
+ ;;
+ (p7) mov rr[r28]=r19
+ mov r24=r22
+ br.many b0
+END(vmx_asm_mov_from_rr)
#define MOV_TO_REG0 \
@@ -346,20 +426,17 @@ ENTRY(vmx_resume_to_guest)
dep r16=r17,r16,IA64_PSR_RI_BIT,2
;;
mov cr.ipsr=r16
- mov r17=cr.isr
adds r19= VPD_VPSR_START_OFFSET,r25
- ld8 r26=[r25]
- add r29=PAL_VPS_RESUME_NORMAL,r20
- add r28=PAL_VPS_RESUME_HANDLER,r20
+ add r28=PAL_VPS_RESUME_NORMAL,r20
+ add r29=PAL_VPS_RESUME_HANDLER,r20
;;
ld8 r19=[r19]
mov b0=r29
cmp.ne p6,p7 = r0,r0
;;
- tbit.nz.or.andcm p6,p7 = r19,IA64_PSR_IC_BIT // p1=vpsr.ic
- tbit.nz.or.andcm p6,p7 = r17,IA64_ISR_IR_BIT //p1=cr.isr.ir
- ;;
- (p6) mov b0=r29
+ tbit.z p6,p7 = r19,IA64_PSR_IC_BIT // p1=vpsr.ic
+ ;;
+ (p6) ld8 r26=[r25]
(p7) mov b0=r28
mov pr=r31,-2
br.sptk.many b0 // call pal service
diff -r 7c2a5f96a192 -r c8fa605f131f xen/arch/ia64/vmx/vmx_ivt.S
--- a/xen/arch/ia64/vmx/vmx_ivt.S Sat Oct 14 16:28:32 2006 -0600
+++ b/xen/arch/ia64/vmx/vmx_ivt.S Sat Oct 14 16:34:41 2006 -0600
@@ -782,8 +782,10 @@ ENTRY(vmx_virtualization_fault)
;;
cmp.eq p6,p0=EVENT_MOV_FROM_AR,r24
cmp.eq p7,p0=EVENT_MOV_FROM_RR,r24
- (p6) br.dptk.many asm_mov_from_ar
- (p7) br.dptk.many asm_mov_from_rr
+ cmp.eq p8,p0=EVENT_MOV_TO_RR,r24
+ (p6) br.dptk.many vmx_asm_mov_from_ar
+ (p7) br.dptk.many vmx_asm_mov_from_rr
+ (p8) br.dptk.many vmx_asm_mov_to_rr
;;
vmx_virtualization_fault_back:
mov r19=37
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