mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-27 06:34:11 +08:00
9d0713edf7
We changed PAGE_OFFSET to be a variable rather than a constant, but this reference here in the hibernate assembler got missed. Signed-off-by: David S. Miller <davem@davemloft.net>
132 lines
2.3 KiB
ArmAsm
132 lines
2.3 KiB
ArmAsm
/*
|
|
* hibernate_asm.S: Hibernaton support specific for sparc64.
|
|
*
|
|
* Copyright (C) 2013 Kirill V Tkhai (tkhai@yandex.ru)
|
|
*/
|
|
|
|
#include <linux/linkage.h>
|
|
|
|
#include <asm/asm-offsets.h>
|
|
#include <asm/cpudata.h>
|
|
#include <asm/page.h>
|
|
|
|
ENTRY(swsusp_arch_suspend)
|
|
save %sp, -128, %sp
|
|
save %sp, -128, %sp
|
|
flushw
|
|
|
|
setuw saved_context, %g3
|
|
|
|
/* Save window regs */
|
|
rdpr %cwp, %g2
|
|
stx %g2, [%g3 + SC_REG_CWP]
|
|
rdpr %wstate, %g2
|
|
stx %g2, [%g3 + SC_REG_WSTATE]
|
|
stx %fp, [%g3 + SC_REG_FP]
|
|
|
|
/* Save state regs */
|
|
rdpr %tick, %g2
|
|
stx %g2, [%g3 + SC_REG_TICK]
|
|
rdpr %pstate, %g2
|
|
stx %g2, [%g3 + SC_REG_PSTATE]
|
|
|
|
/* Save global regs */
|
|
stx %g4, [%g3 + SC_REG_G4]
|
|
stx %g5, [%g3 + SC_REG_G5]
|
|
stx %g6, [%g3 + SC_REG_G6]
|
|
|
|
call swsusp_save
|
|
nop
|
|
|
|
mov %o0, %i0
|
|
restore
|
|
|
|
mov %o0, %i0
|
|
ret
|
|
restore
|
|
|
|
ENTRY(swsusp_arch_resume)
|
|
/* Write restore_pblist to %l0 */
|
|
sethi %hi(restore_pblist), %l0
|
|
ldx [%l0 + %lo(restore_pblist)], %l0
|
|
|
|
call __flush_tlb_all
|
|
nop
|
|
|
|
/* Write PAGE_OFFSET to %g7 */
|
|
sethi %hi(PAGE_OFFSET), %g7
|
|
ldx [%g7 + %lo(PAGE_OFFSET)], %g7
|
|
|
|
setuw (PAGE_SIZE-8), %g3
|
|
|
|
/* Use MMU Bypass */
|
|
rd %asi, %g1
|
|
wr %g0, ASI_PHYS_USE_EC, %asi
|
|
|
|
ba fill_itlb
|
|
nop
|
|
|
|
pbe_loop:
|
|
cmp %l0, %g0
|
|
be restore_ctx
|
|
sub %l0, %g7, %l0
|
|
|
|
ldxa [%l0 ] %asi, %l1 /* address */
|
|
ldxa [%l0 + 8] %asi, %l2 /* orig_address */
|
|
|
|
/* phys addr */
|
|
sub %l1, %g7, %l1
|
|
sub %l2, %g7, %l2
|
|
|
|
mov %g3, %l3 /* PAGE_SIZE-8 */
|
|
copy_loop:
|
|
ldxa [%l1 + %l3] ASI_PHYS_USE_EC, %g2
|
|
stxa %g2, [%l2 + %l3] ASI_PHYS_USE_EC
|
|
cmp %l3, %g0
|
|
bne copy_loop
|
|
sub %l3, 8, %l3
|
|
|
|
/* next pbe */
|
|
ba pbe_loop
|
|
ldxa [%l0 + 16] %asi, %l0
|
|
|
|
restore_ctx:
|
|
setuw saved_context, %g3
|
|
|
|
/* Restore window regs */
|
|
wrpr %g0, 0, %canrestore
|
|
wrpr %g0, 0, %otherwin
|
|
wrpr %g0, 6, %cansave
|
|
wrpr %g0, 0, %cleanwin
|
|
|
|
ldxa [%g3 + SC_REG_CWP] %asi, %g2
|
|
wrpr %g2, %cwp
|
|
ldxa [%g3 + SC_REG_WSTATE] %asi, %g2
|
|
wrpr %g2, %wstate
|
|
ldxa [%g3 + SC_REG_FP] %asi, %fp
|
|
|
|
/* Restore state regs */
|
|
ldxa [%g3 + SC_REG_PSTATE] %asi, %g2
|
|
wrpr %g2, %pstate
|
|
ldxa [%g3 + SC_REG_TICK] %asi, %g2
|
|
wrpr %g2, %tick
|
|
|
|
/* Restore global regs */
|
|
ldxa [%g3 + SC_REG_G4] %asi, %g4
|
|
ldxa [%g3 + SC_REG_G5] %asi, %g5
|
|
ldxa [%g3 + SC_REG_G6] %asi, %g6
|
|
|
|
wr %g1, %g0, %asi
|
|
|
|
restore
|
|
restore
|
|
|
|
wrpr %g0, 14, %pil
|
|
|
|
retl
|
|
mov %g0, %o0
|
|
|
|
fill_itlb:
|
|
ba pbe_loop
|
|
wrpr %g0, 15, %pil
|