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LoongArch: Adjust misc routines for 32BIT/64BIT

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Adjust misc routines for both 32BIT and 64BIT, including: bitops, bswap,
checksum, string, jump label, unaligned access emulator, suspend/wakeup
routines, etc.

Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
This commit is contained in:
Huacai Chen
2025-12-08 18:09:17 +08:00
parent 48c7294775
commit b15dfdacd9
10 changed files with 151 additions and 82 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
arch/loongarch/power/platform.c
View File

@@ -72,10 +72,10 @@ static int __init loongson3_acpi_suspend_init(void)
status = acpi_evaluate_integer(NULL, "\\SADR", NULL, &suspend_addr);
if (ACPI_FAILURE(status) || !suspend_addr) {
pr_info("ACPI S3 supported with hardware register default\n");
loongson_sysconf.suspend_addr = (u64)default_suspend_addr;
loongson_sysconf.suspend_addr = (unsigned long)default_suspend_addr;
} else {
pr_info("ACPI S3 supported with Loongson ACPI SADR extension\n");
loongson_sysconf.suspend_addr = (u64)phys_to_virt(PHYSADDR(suspend_addr));
loongson_sysconf.suspend_addr = (unsigned long)phys_to_virt(PHYSADDR(suspend_addr));
}
#endif
return 0;

72
arch/loongarch/power/suspend_asm.S
View File

@@ -14,41 +14,41 @@
/* preparatory stuff */
.macro SETUP_SLEEP
addi.d sp, sp, -PT_SIZE
st.d $r1, sp, PT_R1
st.d $r2, sp, PT_R2
st.d $r3, sp, PT_R3
st.d $r4, sp, PT_R4
st.d $r21, sp, PT_R21
st.d $r22, sp, PT_R22
st.d $r23, sp, PT_R23
st.d $r24, sp, PT_R24
st.d $r25, sp, PT_R25
st.d $r26, sp, PT_R26
st.d $r27, sp, PT_R27
st.d $r28, sp, PT_R28
st.d $r29, sp, PT_R29
st.d $r30, sp, PT_R30
st.d $r31, sp, PT_R31
PTR_ADDI sp, sp, -PT_SIZE
REG_S $r1, sp, PT_R1
REG_S $r2, sp, PT_R2
REG_S $r3, sp, PT_R3
REG_S $r4, sp, PT_R4
REG_S $r21, sp, PT_R21
REG_S $r22, sp, PT_R22
REG_S $r23, sp, PT_R23
REG_S $r24, sp, PT_R24
REG_S $r25, sp, PT_R25
REG_S $r26, sp, PT_R26
REG_S $r27, sp, PT_R27
REG_S $r28, sp, PT_R28
REG_S $r29, sp, PT_R29
REG_S $r30, sp, PT_R30
REG_S $r31, sp, PT_R31
.endm
.macro SETUP_WAKEUP
ld.d $r1, sp, PT_R1
ld.d $r2, sp, PT_R2
ld.d $r3, sp, PT_R3
ld.d $r4, sp, PT_R4
ld.d $r21, sp, PT_R21
ld.d $r22, sp, PT_R22
ld.d $r23, sp, PT_R23
ld.d $r24, sp, PT_R24
ld.d $r25, sp, PT_R25
ld.d $r26, sp, PT_R26
ld.d $r27, sp, PT_R27
ld.d $r28, sp, PT_R28
ld.d $r29, sp, PT_R29
ld.d $r30, sp, PT_R30
ld.d $r31, sp, PT_R31
addi.d sp, sp, PT_SIZE
REG_L $r1, sp, PT_R1
REG_L $r2, sp, PT_R2
REG_L $r3, sp, PT_R3
REG_L $r4, sp, PT_R4
REG_L $r21, sp, PT_R21
REG_L $r22, sp, PT_R22
REG_L $r23, sp, PT_R23
REG_L $r24, sp, PT_R24
REG_L $r25, sp, PT_R25
REG_L $r26, sp, PT_R26
REG_L $r27, sp, PT_R27
REG_L $r28, sp, PT_R28
REG_L $r29, sp, PT_R29
REG_L $r30, sp, PT_R30
REG_L $r31, sp, PT_R31
PTR_ADDI sp, sp, PT_SIZE
.endm
.text
@@ -59,15 +59,15 @@ SYM_FUNC_START(loongarch_suspend_enter)
SETUP_SLEEP
la.pcrel t0, acpi_saved_sp
st.d sp, t0, 0
REG_S sp, t0, 0
bl __flush_cache_all
/* Pass RA and SP to BIOS */
addi.d a1, sp, 0
PTR_ADDI a1, sp, 0
la.pcrel a0, loongarch_wakeup_start
la.pcrel t0, loongarch_suspend_addr
ld.d t0, t0, 0
REG_L t0, t0, 0
jirl ra, t0, 0 /* Call BIOS's STR sleep routine */
/*
@@ -83,7 +83,7 @@ SYM_INNER_LABEL(loongarch_wakeup_start, SYM_L_GLOBAL)
csrwr t0, LOONGARCH_CSR_CRMD
la.pcrel t0, acpi_saved_sp
ld.d sp, t0, 0
REG_L sp, t0, 0
SETUP_WAKEUP
jr ra