Changeset View
Changeset View
Standalone View
Standalone View
head/sys/powerpc/aim/locore64.S
| Show First 20 Lines • Show All 99 Lines • ▼ Show 20 Lines | 1: or 31,31,31 /* yield */ | ||||
| /* Released */ | /* Released */ | ||||
| or 2,2,2 /* unyield */ | or 2,2,2 /* unyield */ | ||||
| /* Make sure that it will be software reset. Clear SRR1 */ | /* Make sure that it will be software reset. Clear SRR1 */ | ||||
| li %r1,0 | li %r1,0 | ||||
| mtsrr1 %r1 | mtsrr1 %r1 | ||||
| ba EXC_RST | ba EXC_RST | ||||
| /* | /* | ||||
| * Now start the real text section | * Now start the real text section | ||||
| */ | */ | ||||
| .text | .text | ||||
| .globl btext | .globl btext | ||||
| btext: | btext: | ||||
| Show All 27 Lines | 1: mflr %r2 | ||||
| ld %r1,0(%r2) | ld %r1,0(%r2) | ||||
| add %r2,%r1,%r2 | add %r2,%r1,%r2 | ||||
| /* Get load offset */ | /* Get load offset */ | ||||
| ld %r31,-0x8000(%r2) /* First TOC entry is TOC base */ | ld %r31,-0x8000(%r2) /* First TOC entry is TOC base */ | ||||
| subf %r31,%r31,%r2 /* Subtract from real TOC base to get base */ | subf %r31,%r31,%r2 /* Subtract from real TOC base to get base */ | ||||
| /* Set up the stack pointer */ | /* Set up the stack pointer */ | ||||
| ld %r1,TOC_REF(tmpstk)(%r2) | bl 1f | ||||
| addi %r1,%r1,TMPSTKSZ-96 | .llong tmpstk + TMPSTKSZ - 96 - . | ||||
| add %r1,%r1,%r31 | 1: mflr %r30 | ||||
| ld %r1,0(%r30) | |||||
| add %r1,%r1,%r30 | |||||
| nop | |||||
| /* Relocate kernel */ | /* Relocate kernel */ | ||||
| std %r3,48(%r1) | std %r3,48(%r1) | ||||
| std %r4,56(%r1) | std %r4,56(%r1) | ||||
| std %r5,64(%r1) | std %r5,64(%r1) | ||||
| std %r6,72(%r1) | std %r6,72(%r1) | ||||
| std %r7,80(%r1) | std %r7,80(%r1) | ||||
| Show All 20 Lines | 1: mflr %r3 | ||||
| mr %r1, %r3 | mr %r1, %r3 | ||||
| li %r3, 0 | li %r3, 0 | ||||
| std %r3, 0(%r1) | std %r3, 0(%r1) | ||||
| bl mi_startup | bl mi_startup | ||||
| nop | nop | ||||
| /* Unreachable */ | /* Unreachable */ | ||||
| b . | b . | ||||
| ASENTRY_NOPROF(__restartkernel) | |||||
| /* | |||||
| * r3-r7: arguments to go to __start | |||||
| * r8: offset from current kernel address to apply | |||||
| * r9: MSR to set when (atomically) jumping to __start + r8 | |||||
| */ | |||||
| mtsrr1 %r9 | |||||
| bl 1f | |||||
| 1: mflr %r25 | |||||
| add %r25,%r8,%r25 | |||||
| addi %r25,%r25,2f-1b | |||||
| mtsrr0 %r25 | |||||
| rfid | |||||
| 2: bl __start | |||||
| nop | |||||
| #include <powerpc/aim/trap_subr64.S> | #include <powerpc/aim/trap_subr64.S> | ||||