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| author | jkim <jkim@FreeBSD.org> | 2014-03-04 19:41:16 +0000 |
|---|---|---|
| committer | jkim <jkim@FreeBSD.org> | 2014-03-04 19:41:16 +0000 |
| commit | 373cea9476ea8bc27aaa8ba5e1f54abb066c079b (patch) | |
| tree | 9741dcbcc5c3890841791d13ad65b623160972f4 /sys/amd64/amd64/cpu_switch.S | |
| parent | 0e398a79d243a32c58f993075807b35e297c94b2 (diff) | |
| download | FreeBSD-src-373cea9476ea8bc27aaa8ba5e1f54abb066c079b.zip FreeBSD-src-373cea9476ea8bc27aaa8ba5e1f54abb066c079b.tar.gz | |
Remove dead code since r230426, fix a comment, and tidy up.
Reported by: jhb
MFC after: 3 days
Diffstat (limited to 'sys/amd64/amd64/cpu_switch.S')
| -rw-r--r-- | sys/amd64/amd64/cpu_switch.S | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/sys/amd64/amd64/cpu_switch.S b/sys/amd64/amd64/cpu_switch.S index ac30990..bbd85fb 100644 --- a/sys/amd64/amd64/cpu_switch.S +++ b/sys/amd64/amd64/cpu_switch.S @@ -345,8 +345,8 @@ ENTRY(savectx) movq %r14,PCB_R14(%rdi) movq %r15,PCB_R15(%rdi) - movq %cr0,%rsi - movq %rsi,PCB_CR0(%rdi) + movq %cr0,%rax + movq %rax,PCB_CR0(%rdi) movq %cr2,%rax movq %rax,PCB_CR2(%rdi) movq %cr3,%rax @@ -409,8 +409,6 @@ ENTRY(savectx) sldt PCB_LDT(%rdi) str PCB_TR(%rdi) -2: movq %rsi,%cr0 /* The previous %cr0 is saved in %rsi. */ - movl $1,%eax ret END(savectx) @@ -550,12 +548,12 @@ ENTRY(resumectx) END(resumectx) /* - * Wrapper around fpusave to care about TS0_CR. + * Wrapper around fpusave to care about CR0_TS. */ ENTRY(ctx_fpusave) - movq %cr0,%rsi + movq %cr0,%rax clts call fpusave - movq %rsi,%cr0 + movq %rax,%cr0 ret END(ctx_fpusave) |
