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-rw-r--r--arch/ia64/kernel/relocate_kernel.S321
1 files changed, 0 insertions, 321 deletions
diff --git a/arch/ia64/kernel/relocate_kernel.S b/arch/ia64/kernel/relocate_kernel.S
deleted file mode 100644
index 527a7b896a6e..000000000000
--- a/arch/ia64/kernel/relocate_kernel.S
+++ /dev/null
@@ -1,321 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * arch/ia64/kernel/relocate_kernel.S
- *
- * Relocate kexec'able kernel and start it
- *
- * Copyright (C) 2005 Hewlett-Packard Development Company, L.P.
- * Copyright (C) 2005 Khalid Aziz <khalid.aziz@hp.com>
- * Copyright (C) 2005 Intel Corp, Zou Nan hai <nanhai.zou@intel.com>
- */
-#include <linux/pgtable.h>
-#include <asm/asmmacro.h>
-#include <asm/kregs.h>
-#include <asm/page.h>
-#include <asm/mca_asm.h>
-
- /* Must be relocatable PIC code callable as a C function
- */
-GLOBAL_ENTRY(relocate_new_kernel)
- .prologue
- alloc r31=ar.pfs,4,0,0,0
- .body
-.reloc_entry:
-{
- rsm psr.i| psr.ic
- mov r2=ip
-}
- ;;
-{
- flushrs // must be first insn in group
- srlz.i
-}
- ;;
- dep r2=0,r2,61,3 //to physical address
- ;;
- //first switch to physical mode
- add r3=1f-.reloc_entry, r2
- movl r16 = IA64_PSR_AC|IA64_PSR_BN|IA64_PSR_IC
- mov ar.rsc=0 // put RSE in enforced lazy mode
- ;;
- add sp=(memory_stack_end - 16 - .reloc_entry),r2
- add r8=(register_stack - .reloc_entry),r2
- ;;
- mov r18=ar.rnat
- mov ar.bspstore=r8
- ;;
- mov cr.ipsr=r16
- mov cr.iip=r3
- mov cr.ifs=r0
- srlz.i
- ;;
- mov ar.rnat=r18
- rfi // note: this unmask MCA/INIT (psr.mc)
- ;;
-1:
- //physical mode code begin
- mov b6=in1
- dep r28=0,in2,61,3 //to physical address
-
- // purge all TC entries
-#define O(member) IA64_CPUINFO_##member##_OFFSET
- GET_THIS_PADDR(r2, ia64_cpu_info) // load phys addr of cpu_info into r2
- ;;
- addl r17=O(PTCE_STRIDE),r2
- addl r2=O(PTCE_BASE),r2
- ;;
- ld8 r18=[r2],(O(PTCE_COUNT)-O(PTCE_BASE));; // r18=ptce_base
- ld4 r19=[r2],4 // r19=ptce_count[0]
- ld4 r21=[r17],4 // r21=ptce_stride[0]
- ;;
- ld4 r20=[r2] // r20=ptce_count[1]
- ld4 r22=[r17] // r22=ptce_stride[1]
- mov r24=r0
- ;;
- adds r20=-1,r20
- ;;
-#undef O
-2:
- cmp.ltu p6,p7=r24,r19
-(p7) br.cond.dpnt.few 4f
- mov ar.lc=r20
-3:
- ptc.e r18
- ;;
- add r18=r22,r18
- br.cloop.sptk.few 3b
- ;;
- add r18=r21,r18
- add r24=1,r24
- ;;
- br.sptk.few 2b
-4:
- srlz.i
- ;;
- // purge TR entry for kernel text and data
- movl r16=KERNEL_START
- mov r18=KERNEL_TR_PAGE_SHIFT<<2
- ;;
- ptr.i r16, r18
- ptr.d r16, r18
- ;;
- srlz.i
- ;;
-
- // purge TR entry for pal code
- mov r16=in3
- mov r18=IA64_GRANULE_SHIFT<<2
- ;;
- ptr.i r16,r18
- ;;
- srlz.i
- ;;
-
- // purge TR entry for stack
- mov r16=IA64_KR(CURRENT_STACK)
- ;;
- shl r16=r16,IA64_GRANULE_SHIFT
- movl r19=PAGE_OFFSET
- ;;
- add r16=r19,r16
- mov r18=IA64_GRANULE_SHIFT<<2
- ;;
- ptr.d r16,r18
- ;;
- srlz.i
- ;;
-
- //copy segments
- movl r16=PAGE_MASK
- mov r30=in0 // in0 is page_list
- br.sptk.few .dest_page
- ;;
-.loop:
- ld8 r30=[in0], 8;;
-.dest_page:
- tbit.z p0, p6=r30, 0;; // 0x1 dest page
-(p6) and r17=r30, r16
-(p6) br.cond.sptk.few .loop;;
-
- tbit.z p0, p6=r30, 1;; // 0x2 indirect page
-(p6) and in0=r30, r16
-(p6) br.cond.sptk.few .loop;;
-
- tbit.z p0, p6=r30, 2;; // 0x4 end flag
-(p6) br.cond.sptk.few .end_loop;;
-
- tbit.z p6, p0=r30, 3;; // 0x8 source page
-(p6) br.cond.sptk.few .loop
-
- and r18=r30, r16
-
- // simple copy page, may optimize later
- movl r14=PAGE_SIZE/8 - 1;;
- mov ar.lc=r14;;
-1:
- ld8 r14=[r18], 8;;
- st8 [r17]=r14;;
- fc.i r17
- add r17=8, r17
- br.ctop.sptk.few 1b
- br.sptk.few .loop
- ;;
-
-.end_loop:
- sync.i // for fc.i
- ;;
- srlz.i
- ;;
- srlz.d
- ;;
- br.call.sptk.many b0=b6;;
-
-.align 32
-memory_stack:
- .fill 8192, 1, 0
-memory_stack_end:
-register_stack:
- .fill 8192, 1, 0
-register_stack_end:
-relocate_new_kernel_end:
-END(relocate_new_kernel)
-
-.global relocate_new_kernel_size
-relocate_new_kernel_size:
- data8 relocate_new_kernel_end - relocate_new_kernel
-
-GLOBAL_ENTRY(ia64_dump_cpu_regs)
- .prologue
- alloc loc0=ar.pfs,1,2,0,0
- .body
- mov ar.rsc=0 // put RSE in enforced lazy mode
- add loc1=4*8, in0 // save r4 and r5 first
- ;;
-{
- flushrs // flush dirty regs to backing store
- srlz.i
-}
- st8 [loc1]=r4, 8
- ;;
- st8 [loc1]=r5, 8
- ;;
- add loc1=32*8, in0
- mov r4=ar.rnat
- ;;
- st8 [in0]=r0, 8 // r0
- st8 [loc1]=r4, 8 // rnat
- mov r5=pr
- ;;
- st8 [in0]=r1, 8 // r1
- st8 [loc1]=r5, 8 // pr
- mov r4=b0
- ;;
- st8 [in0]=r2, 8 // r2
- st8 [loc1]=r4, 8 // b0
- mov r5=b1;
- ;;
- st8 [in0]=r3, 24 // r3
- st8 [loc1]=r5, 8 // b1
- mov r4=b2
- ;;
- st8 [in0]=r6, 8 // r6
- st8 [loc1]=r4, 8 // b2
- mov r5=b3
- ;;
- st8 [in0]=r7, 8 // r7
- st8 [loc1]=r5, 8 // b3
- mov r4=b4
- ;;
- st8 [in0]=r8, 8 // r8
- st8 [loc1]=r4, 8 // b4
- mov r5=b5
- ;;
- st8 [in0]=r9, 8 // r9
- st8 [loc1]=r5, 8 // b5
- mov r4=b6
- ;;
- st8 [in0]=r10, 8 // r10
- st8 [loc1]=r5, 8 // b6
- mov r5=b7
- ;;
- st8 [in0]=r11, 8 // r11
- st8 [loc1]=r5, 8 // b7
- mov r4=b0
- ;;
- st8 [in0]=r12, 8 // r12
- st8 [loc1]=r4, 8 // ip
- mov r5=loc0
- ;;
- st8 [in0]=r13, 8 // r13
- extr.u r5=r5, 0, 38 // ar.pfs.pfm
- mov r4=r0 // user mask
- ;;
- st8 [in0]=r14, 8 // r14
- st8 [loc1]=r5, 8 // cfm
- ;;
- st8 [in0]=r15, 8 // r15
- st8 [loc1]=r4, 8 // user mask
- mov r5=ar.rsc
- ;;
- st8 [in0]=r16, 8 // r16
- st8 [loc1]=r5, 8 // ar.rsc
- mov r4=ar.bsp
- ;;
- st8 [in0]=r17, 8 // r17
- st8 [loc1]=r4, 8 // ar.bsp
- mov r5=ar.bspstore
- ;;
- st8 [in0]=r18, 8 // r18
- st8 [loc1]=r5, 8 // ar.bspstore
- mov r4=ar.rnat
- ;;
- st8 [in0]=r19, 8 // r19
- st8 [loc1]=r4, 8 // ar.rnat
- mov r5=ar.ccv
- ;;
- st8 [in0]=r20, 8 // r20
- st8 [loc1]=r5, 8 // ar.ccv
- mov r4=ar.unat
- ;;
- st8 [in0]=r21, 8 // r21
- st8 [loc1]=r4, 8 // ar.unat
- mov r5 = ar.fpsr
- ;;
- st8 [in0]=r22, 8 // r22
- st8 [loc1]=r5, 8 // ar.fpsr
- mov r4 = ar.unat
- ;;
- st8 [in0]=r23, 8 // r23
- st8 [loc1]=r4, 8 // unat
- mov r5 = ar.fpsr
- ;;
- st8 [in0]=r24, 8 // r24
- st8 [loc1]=r5, 8 // fpsr
- mov r4 = ar.pfs
- ;;
- st8 [in0]=r25, 8 // r25
- st8 [loc1]=r4, 8 // ar.pfs
- mov r5 = ar.lc
- ;;
- st8 [in0]=r26, 8 // r26
- st8 [loc1]=r5, 8 // ar.lc
- mov r4 = ar.ec
- ;;
- st8 [in0]=r27, 8 // r27
- st8 [loc1]=r4, 8 // ar.ec
- mov r5 = ar.csd
- ;;
- st8 [in0]=r28, 8 // r28
- st8 [loc1]=r5, 8 // ar.csd
- mov r4 = ar.ssd
- ;;
- st8 [in0]=r29, 8 // r29
- st8 [loc1]=r4, 8 // ar.ssd
- ;;
- st8 [in0]=r30, 8 // r30
- ;;
- st8 [in0]=r31, 8 // r31
- mov ar.pfs=loc0
- ;;
- br.ret.sptk.many rp
-END(ia64_dump_cpu_regs)
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