272 lines
4.2 KiB
ArmAsm
272 lines
4.2 KiB
ArmAsm
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright 2014, Michael Ellerman, IBM Corp.
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*/
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#include <ppc-asm.h>
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.text
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FUNC_START(core_busy_loop)
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stdu %r1, -168(%r1)
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std r14, 160(%r1)
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std r15, 152(%r1)
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std r16, 144(%r1)
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std r17, 136(%r1)
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std r18, 128(%r1)
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std r19, 120(%r1)
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std r20, 112(%r1)
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std r21, 104(%r1)
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std r22, 96(%r1)
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std r23, 88(%r1)
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std r24, 80(%r1)
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std r25, 72(%r1)
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std r26, 64(%r1)
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std r27, 56(%r1)
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std r28, 48(%r1)
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std r29, 40(%r1)
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std r30, 32(%r1)
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std r31, 24(%r1)
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li r3, 0x3030
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std r3, -96(%r1)
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li r4, 0x4040
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std r4, -104(%r1)
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li r5, 0x5050
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std r5, -112(%r1)
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li r6, 0x6060
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std r6, -120(%r1)
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li r7, 0x7070
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std r7, -128(%r1)
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li r8, 0x0808
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std r8, -136(%r1)
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li r9, 0x0909
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std r9, -144(%r1)
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li r10, 0x1010
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std r10, -152(%r1)
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li r11, 0x1111
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std r11, -160(%r1)
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li r14, 0x1414
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std r14, -168(%r1)
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li r15, 0x1515
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std r15, -176(%r1)
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li r16, 0x1616
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std r16, -184(%r1)
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li r17, 0x1717
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std r17, -192(%r1)
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li r18, 0x1818
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std r18, -200(%r1)
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li r19, 0x1919
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std r19, -208(%r1)
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li r20, 0x2020
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std r20, -216(%r1)
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li r21, 0x2121
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std r21, -224(%r1)
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li r22, 0x2222
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std r22, -232(%r1)
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li r23, 0x2323
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std r23, -240(%r1)
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li r24, 0x2424
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std r24, -248(%r1)
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li r25, 0x2525
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std r25, -256(%r1)
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li r26, 0x2626
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std r26, -264(%r1)
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li r27, 0x2727
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std r27, -272(%r1)
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li r28, 0x2828
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std r28, -280(%r1)
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li r29, 0x2929
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std r29, -288(%r1)
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li r30, 0x3030
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li r31, 0x3131
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li r3, 0
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0: addi r3, r3, 1
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cmpwi r3, 100
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blt 0b
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/* Return 1 (fail) unless we get through all the checks */
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li r3, 1
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/* Check none of our registers have been corrupted */
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cmpwi r4, 0x4040
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bne 1f
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cmpwi r5, 0x5050
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bne 1f
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cmpwi r6, 0x6060
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bne 1f
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cmpwi r7, 0x7070
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bne 1f
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cmpwi r8, 0x0808
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bne 1f
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cmpwi r9, 0x0909
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bne 1f
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cmpwi r10, 0x1010
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bne 1f
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cmpwi r11, 0x1111
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bne 1f
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cmpwi r14, 0x1414
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bne 1f
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cmpwi r15, 0x1515
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bne 1f
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cmpwi r16, 0x1616
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bne 1f
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cmpwi r17, 0x1717
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bne 1f
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cmpwi r18, 0x1818
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bne 1f
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cmpwi r19, 0x1919
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bne 1f
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cmpwi r20, 0x2020
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bne 1f
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cmpwi r21, 0x2121
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bne 1f
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cmpwi r22, 0x2222
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bne 1f
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cmpwi r23, 0x2323
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bne 1f
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cmpwi r24, 0x2424
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bne 1f
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cmpwi r25, 0x2525
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bne 1f
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cmpwi r26, 0x2626
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bne 1f
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cmpwi r27, 0x2727
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bne 1f
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cmpwi r28, 0x2828
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bne 1f
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cmpwi r29, 0x2929
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bne 1f
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cmpwi r30, 0x3030
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bne 1f
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cmpwi r31, 0x3131
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bne 1f
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/* Load junk into all our registers before we reload them from the stack. */
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li r3, 0xde
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li r4, 0xad
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li r5, 0xbe
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li r6, 0xef
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li r7, 0xde
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li r8, 0xad
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li r9, 0xbe
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li r10, 0xef
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li r11, 0xde
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li r14, 0xad
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li r15, 0xbe
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li r16, 0xef
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li r17, 0xde
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li r18, 0xad
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li r19, 0xbe
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li r20, 0xef
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li r21, 0xde
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li r22, 0xad
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li r23, 0xbe
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li r24, 0xef
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li r25, 0xde
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li r26, 0xad
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li r27, 0xbe
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li r28, 0xef
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li r29, 0xdd
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ld r3, -96(%r1)
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cmpwi r3, 0x3030
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bne 1f
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ld r4, -104(%r1)
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cmpwi r4, 0x4040
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bne 1f
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ld r5, -112(%r1)
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cmpwi r5, 0x5050
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bne 1f
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ld r6, -120(%r1)
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cmpwi r6, 0x6060
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bne 1f
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ld r7, -128(%r1)
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cmpwi r7, 0x7070
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bne 1f
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ld r8, -136(%r1)
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cmpwi r8, 0x0808
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bne 1f
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ld r9, -144(%r1)
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cmpwi r9, 0x0909
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bne 1f
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ld r10, -152(%r1)
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cmpwi r10, 0x1010
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bne 1f
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ld r11, -160(%r1)
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cmpwi r11, 0x1111
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bne 1f
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ld r14, -168(%r1)
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cmpwi r14, 0x1414
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bne 1f
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ld r15, -176(%r1)
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cmpwi r15, 0x1515
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bne 1f
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ld r16, -184(%r1)
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cmpwi r16, 0x1616
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bne 1f
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ld r17, -192(%r1)
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cmpwi r17, 0x1717
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bne 1f
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ld r18, -200(%r1)
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cmpwi r18, 0x1818
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bne 1f
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ld r19, -208(%r1)
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cmpwi r19, 0x1919
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bne 1f
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ld r20, -216(%r1)
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cmpwi r20, 0x2020
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bne 1f
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ld r21, -224(%r1)
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cmpwi r21, 0x2121
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bne 1f
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ld r22, -232(%r1)
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cmpwi r22, 0x2222
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bne 1f
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ld r23, -240(%r1)
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cmpwi r23, 0x2323
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bne 1f
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ld r24, -248(%r1)
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cmpwi r24, 0x2424
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bne 1f
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ld r25, -256(%r1)
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cmpwi r25, 0x2525
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bne 1f
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ld r26, -264(%r1)
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cmpwi r26, 0x2626
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bne 1f
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ld r27, -272(%r1)
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cmpwi r27, 0x2727
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bne 1f
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ld r28, -280(%r1)
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cmpwi r28, 0x2828
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bne 1f
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ld r29, -288(%r1)
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cmpwi r29, 0x2929
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bne 1f
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/* Load 0 (success) to return */
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li r3, 0
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1: ld r14, 160(%r1)
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ld r15, 152(%r1)
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ld r16, 144(%r1)
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ld r17, 136(%r1)
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ld r18, 128(%r1)
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ld r19, 120(%r1)
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ld r20, 112(%r1)
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ld r21, 104(%r1)
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ld r22, 96(%r1)
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ld r23, 88(%r1)
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ld r24, 80(%r1)
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ld r25, 72(%r1)
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ld r26, 64(%r1)
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ld r27, 56(%r1)
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ld r28, 48(%r1)
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ld r29, 40(%r1)
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ld r30, 32(%r1)
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ld r31, 24(%r1)
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addi %r1, %r1, 168
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blr
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