mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 10:05:19 +07:00
c0f6feba78
Make it a local symbol so that it doesn't appear in objdump output. No functionality change - code remains the same, just the global label disappears: ffffffff81039dbe: bf 03 00 00 00 mov $0x3,%edi ffffffff81039dc3: 31 c0 xor %eax,%eax ffffffff81039dc5: e8 b6 fd ff ff callq ffffffff81039b80 <x86_acpi_enter_sleep_state> -ffffffff81039dca: eb 00 jmp ffffffff81039dcc <resume_point> - -ffffffff81039dcc <resume_point>: +ffffffff81039dca: eb 00 jmp ffffffff81039dcc <do_suspend_lowlevel+0x9c> ffffffff81039dcc: 48 c7 c0 80 1a ca 82 mov $0xffffffff82ca1a80,%rax ffffffff81039dd3: 48 8b 98 e2 00 00 00 mov 0xe2(%rax),%rbx ffffffff81039dda: 0f 22 e3 mov %rbx,%cr4 Signed-off-by: Borislav Petkov <bp@suse.de> Cc: <linux-pm@vger.kernel.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Len Brown <len.brown@intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Pavel Machek <pavel@ucw.cz> Cc: Rafael J. Wysocki <rjw@rjwysocki.net> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1429080614-22610-1-git-send-email-bp@alien8.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
125 lines
2.7 KiB
ArmAsm
125 lines
2.7 KiB
ArmAsm
.text
|
|
#include <linux/linkage.h>
|
|
#include <asm/segment.h>
|
|
#include <asm/pgtable_types.h>
|
|
#include <asm/page_types.h>
|
|
#include <asm/msr.h>
|
|
#include <asm/asm-offsets.h>
|
|
|
|
# Copyright 2003 Pavel Machek <pavel@suse.cz>, distribute under GPLv2
|
|
|
|
.code64
|
|
/*
|
|
* Hooray, we are in Long 64-bit mode (but still running in low memory)
|
|
*/
|
|
ENTRY(wakeup_long64)
|
|
movq saved_magic, %rax
|
|
movq $0x123456789abcdef0, %rdx
|
|
cmpq %rdx, %rax
|
|
jne bogus_64_magic
|
|
|
|
movw $__KERNEL_DS, %ax
|
|
movw %ax, %ss
|
|
movw %ax, %ds
|
|
movw %ax, %es
|
|
movw %ax, %fs
|
|
movw %ax, %gs
|
|
movq saved_rsp, %rsp
|
|
|
|
movq saved_rbx, %rbx
|
|
movq saved_rdi, %rdi
|
|
movq saved_rsi, %rsi
|
|
movq saved_rbp, %rbp
|
|
|
|
movq saved_rip, %rax
|
|
jmp *%rax
|
|
ENDPROC(wakeup_long64)
|
|
|
|
bogus_64_magic:
|
|
jmp bogus_64_magic
|
|
|
|
ENTRY(do_suspend_lowlevel)
|
|
subq $8, %rsp
|
|
xorl %eax, %eax
|
|
call save_processor_state
|
|
|
|
movq $saved_context, %rax
|
|
movq %rsp, pt_regs_sp(%rax)
|
|
movq %rbp, pt_regs_bp(%rax)
|
|
movq %rsi, pt_regs_si(%rax)
|
|
movq %rdi, pt_regs_di(%rax)
|
|
movq %rbx, pt_regs_bx(%rax)
|
|
movq %rcx, pt_regs_cx(%rax)
|
|
movq %rdx, pt_regs_dx(%rax)
|
|
movq %r8, pt_regs_r8(%rax)
|
|
movq %r9, pt_regs_r9(%rax)
|
|
movq %r10, pt_regs_r10(%rax)
|
|
movq %r11, pt_regs_r11(%rax)
|
|
movq %r12, pt_regs_r12(%rax)
|
|
movq %r13, pt_regs_r13(%rax)
|
|
movq %r14, pt_regs_r14(%rax)
|
|
movq %r15, pt_regs_r15(%rax)
|
|
pushfq
|
|
popq pt_regs_flags(%rax)
|
|
|
|
movq $.Lresume_point, saved_rip(%rip)
|
|
|
|
movq %rsp, saved_rsp
|
|
movq %rbp, saved_rbp
|
|
movq %rbx, saved_rbx
|
|
movq %rdi, saved_rdi
|
|
movq %rsi, saved_rsi
|
|
|
|
addq $8, %rsp
|
|
movl $3, %edi
|
|
xorl %eax, %eax
|
|
call x86_acpi_enter_sleep_state
|
|
/* in case something went wrong, restore the machine status and go on */
|
|
jmp .Lresume_point
|
|
|
|
.align 4
|
|
.Lresume_point:
|
|
/* We don't restore %rax, it must be 0 anyway */
|
|
movq $saved_context, %rax
|
|
movq saved_context_cr4(%rax), %rbx
|
|
movq %rbx, %cr4
|
|
movq saved_context_cr3(%rax), %rbx
|
|
movq %rbx, %cr3
|
|
movq saved_context_cr2(%rax), %rbx
|
|
movq %rbx, %cr2
|
|
movq saved_context_cr0(%rax), %rbx
|
|
movq %rbx, %cr0
|
|
pushq pt_regs_flags(%rax)
|
|
popfq
|
|
movq pt_regs_sp(%rax), %rsp
|
|
movq pt_regs_bp(%rax), %rbp
|
|
movq pt_regs_si(%rax), %rsi
|
|
movq pt_regs_di(%rax), %rdi
|
|
movq pt_regs_bx(%rax), %rbx
|
|
movq pt_regs_cx(%rax), %rcx
|
|
movq pt_regs_dx(%rax), %rdx
|
|
movq pt_regs_r8(%rax), %r8
|
|
movq pt_regs_r9(%rax), %r9
|
|
movq pt_regs_r10(%rax), %r10
|
|
movq pt_regs_r11(%rax), %r11
|
|
movq pt_regs_r12(%rax), %r12
|
|
movq pt_regs_r13(%rax), %r13
|
|
movq pt_regs_r14(%rax), %r14
|
|
movq pt_regs_r15(%rax), %r15
|
|
|
|
xorl %eax, %eax
|
|
addq $8, %rsp
|
|
jmp restore_processor_state
|
|
ENDPROC(do_suspend_lowlevel)
|
|
|
|
.data
|
|
ENTRY(saved_rbp) .quad 0
|
|
ENTRY(saved_rsi) .quad 0
|
|
ENTRY(saved_rdi) .quad 0
|
|
ENTRY(saved_rbx) .quad 0
|
|
|
|
ENTRY(saved_rip) .quad 0
|
|
ENTRY(saved_rsp) .quad 0
|
|
|
|
ENTRY(saved_magic) .quad 0
|