github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-07-29 18:51:21 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

LoongArch: Adjust SETUP_SLEEP and SETUP_WAKEUP

Browse Source 
SETUP_SLEEP should only save the GPR context, which is symmetric to
SETUP_WAKEUP, so move the acpi_saved_sp handling out of SETUP_SLEEP.

Move "addi.d  sp, sp, PT_SIZE" into SETUP_WAKEUP for the same reason.

No functional changes.

Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
This commit is contained in:
Huacai Chen 2025-01-25 18:51:43 +08:00
parent 5d0cc7e585
commit 307094c9e2
1 changed files with 6 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
arch/loongarch/power/suspend_asm.S
View File

@ -30,9 +30,6 @@
st.d $r29, sp, PT_R29
st.d $r30, sp, PT_R30
st.d $r31, sp, PT_R31
la.pcrel t0, acpi_saved_sp
st.d sp, t0, 0
.endm
.macro SETUP_WAKEUP
@ -51,6 +48,7 @@
ld.d $r29, sp, PT_R29
ld.d $r30, sp, PT_R30
ld.d $r31, sp, PT_R31
addi.d sp, sp, PT_SIZE
.endm
.text
@ -59,6 +57,10 @@
/* Sleep/wakeup code for Loongson-3 */
SYM_FUNC_START(loongarch_suspend_enter)
SETUP_SLEEP
la.pcrel t0, acpi_saved_sp
st.d sp, t0, 0
bl __flush_cache_all
/* Pass RA and SP to BIOS */
@ -82,7 +84,7 @@ SYM_INNER_LABEL(loongarch_wakeup_start, SYM_L_GLOBAL)
la.pcrel t0, acpi_saved_sp
ld.d sp, t0, 0
SETUP_WAKEUP
addi.d sp, sp, PT_SIZE
jr ra
SYM_FUNC_END(loongarch_suspend_enter)