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authorYouling Tang <tangyouling@loongson.cn>2023-02-25 15:52:56 +0800
committerHuacai Chen <chenhuacai@loongson.cn>2023-02-25 22:12:16 +0800
commit396233c650084cb957eb6d87dd4abd3e56a7d499 (patch)
tree8d69c7f5d7d141cf1855545f16cb5ab1b845bcfa /arch/loongarch
parent8cbd5ebfe241699288cb152081854414f6265718 (diff)
LoongArch: Add la_abs macro implementation
Use the "la_abs macro" instead of the "la.abs pseudo instruction" to prepare for the subsequent PIE kernel. When PIE is not enabled, la_abs is equivalent to la.abs. Signed-off-by: Youling Tang <tangyouling@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Diffstat (limited to 'arch/loongarch')
-rw-r--r--arch/loongarch/include/asm/asmmacro.h4
-rw-r--r--arch/loongarch/include/asm/stackframe.h2
-rw-r--r--arch/loongarch/kernel/genex.S8
-rw-r--r--arch/loongarch/mm/tlbex.S14
4 files changed, 16 insertions, 12 deletions
diff --git a/arch/loongarch/include/asm/asmmacro.h b/arch/loongarch/include/asm/asmmacro.h
index be037a40580d..cdc9935d5554 100644
--- a/arch/loongarch/include/asm/asmmacro.h
+++ b/arch/loongarch/include/asm/asmmacro.h
@@ -274,4 +274,8 @@
nor \dst, \src, zero
.endm
+.macro la_abs reg, sym
+ la.abs \reg, \sym
+.endm
+
#endif /* _ASM_ASMMACRO_H */
diff --git a/arch/loongarch/include/asm/stackframe.h b/arch/loongarch/include/asm/stackframe.h
index 0274e704c13b..7df80e6ae9d2 100644
--- a/arch/loongarch/include/asm/stackframe.h
+++ b/arch/loongarch/include/asm/stackframe.h
@@ -86,7 +86,7 @@
* new value in sp.
*/
.macro get_saved_sp docfi=0
- la.abs t1, kernelsp
+ la_abs t1, kernelsp
#ifdef CONFIG_SMP
csrrd t0, PERCPU_BASE_KS
LONG_ADD t1, t1, t0
diff --git a/arch/loongarch/kernel/genex.S b/arch/loongarch/kernel/genex.S
index 7e5c293ed89f..44ff1ff64260 100644
--- a/arch/loongarch/kernel/genex.S
+++ b/arch/loongarch/kernel/genex.S
@@ -34,7 +34,7 @@ SYM_FUNC_END(__arch_cpu_idle)
SYM_FUNC_START(handle_vint)
BACKUP_T0T1
SAVE_ALL
- la.abs t1, __arch_cpu_idle
+ la_abs t1, __arch_cpu_idle
LONG_L t0, sp, PT_ERA
/* 32 byte rollback region */
ori t0, t0, 0x1f
@@ -43,7 +43,7 @@ SYM_FUNC_START(handle_vint)
LONG_S t0, sp, PT_ERA
1: move a0, sp
move a1, sp
- la.abs t0, do_vint
+ la_abs t0, do_vint
jirl ra, t0, 0
RESTORE_ALL_AND_RET
SYM_FUNC_END(handle_vint)
@@ -72,7 +72,7 @@ SYM_FUNC_END(except_vec_cex)
SAVE_ALL
build_prep_\prep
move a0, sp
- la.abs t0, do_\handler
+ la_abs t0, do_\handler
jirl ra, t0, 0
668:
RESTORE_ALL_AND_RET
@@ -93,6 +93,6 @@ SYM_FUNC_END(except_vec_cex)
BUILD_HANDLER reserved reserved none /* others */
SYM_FUNC_START(handle_sys)
- la.abs t0, handle_syscall
+ la_abs t0, handle_syscall
jr t0
SYM_FUNC_END(handle_sys)
diff --git a/arch/loongarch/mm/tlbex.S b/arch/loongarch/mm/tlbex.S
index 3dd2a9615cd9..244e2f5aeee5 100644
--- a/arch/loongarch/mm/tlbex.S
+++ b/arch/loongarch/mm/tlbex.S
@@ -39,7 +39,7 @@ SYM_FUNC_START(handle_tlb_protect)
move a1, zero
csrrd a2, LOONGARCH_CSR_BADV
REG_S a2, sp, PT_BVADDR
- la.abs t0, do_page_fault
+ la_abs t0, do_page_fault
jirl ra, t0, 0
RESTORE_ALL_AND_RET
SYM_FUNC_END(handle_tlb_protect)
@@ -115,7 +115,7 @@ smp_pgtable_change_load:
#ifdef CONFIG_64BIT
vmalloc_load:
- la.abs t1, swapper_pg_dir
+ la_abs t1, swapper_pg_dir
b vmalloc_done_load
#endif
@@ -186,7 +186,7 @@ tlb_huge_update_load:
nopage_tlb_load:
dbar 0
csrrd ra, EXCEPTION_KS2
- la.abs t0, tlb_do_page_fault_0
+ la_abs t0, tlb_do_page_fault_0
jr t0
SYM_FUNC_END(handle_tlb_load)
@@ -262,7 +262,7 @@ smp_pgtable_change_store:
#ifdef CONFIG_64BIT
vmalloc_store:
- la.abs t1, swapper_pg_dir
+ la_abs t1, swapper_pg_dir
b vmalloc_done_store
#endif
@@ -335,7 +335,7 @@ tlb_huge_update_store:
nopage_tlb_store:
dbar 0
csrrd ra, EXCEPTION_KS2
- la.abs t0, tlb_do_page_fault_1
+ la_abs t0, tlb_do_page_fault_1
jr t0
SYM_FUNC_END(handle_tlb_store)
@@ -410,7 +410,7 @@ smp_pgtable_change_modify:
#ifdef CONFIG_64BIT
vmalloc_modify:
- la.abs t1, swapper_pg_dir
+ la_abs t1, swapper_pg_dir
b vmalloc_done_modify
#endif
@@ -482,7 +482,7 @@ tlb_huge_update_modify:
nopage_tlb_modify:
dbar 0
csrrd ra, EXCEPTION_KS2
- la.abs t0, tlb_do_page_fault_1
+ la_abs t0, tlb_do_page_fault_1
jr t0
SYM_FUNC_END(handle_tlb_modify)