wip: LoongArch: Kill la.abs

Signed-off-by: Xi Ruoyao <xry111@xry111.site>

arch/loongarch/include/asm/stackframe.h

@@ -76,8 +76,8 @@
  * kernelsp array for it. It stores the current sp in t0 and loads the
  * new value in sp.
  */
-	.macro	get_saved_sp docfi=0
-	la.abs	  t1, kernelsp
+	.macro	  get_saved_sp docfi=0
+	la.pcrel  t1, kernelsp
 #ifdef CONFIG_SMP
 	csrrd	  t0, PERCPU_BASE_KS
 	LONG_ADD  t1, t1, t0
@@ -89,8 +89,8 @@
 	LONG_L	  sp, t1, 0
 	.endm
 
-	.macro	set_saved_sp stackp temp temp2
-	la.abs	  \temp, kernelsp
+	.macro	  set_saved_sp stackp temp temp2
+	la.pcrel  \temp, kernelsp
 #ifdef CONFIG_SMP
 	LONG_ADD  \temp, \temp, u0
 #endif

arch/loongarch/include/asm/uaccess.h

@@ -21,7 +21,6 @@
 extern u64 __ua_limit;
 
 #define __UA_ADDR	".dword"
-#define __UA_LA		"la.abs"
 #define __UA_LIMIT	__ua_limit
 
 /*

arch/loongarch/kernel/entry.S

@@ -18,9 +18,9 @@
 	.text
 	.cfi_sections	.debug_frame
 	.align	5
-SYM_FUNC_START(handle_syscall)
+SYM_FUNC_START(handle_sys)
 	csrrd	t0, PERCPU_BASE_KS
-	la.abs	t1, kernelsp
+	la.pcrel	t1, kernelsp
 	add.d	t1, t1, t0
 	move	t2, sp
 	ld.d	sp, t1, 0
@@ -66,7 +66,7 @@ SYM_FUNC_START(handle_syscall)
 	bl	do_syscall
 
 	RESTORE_ALL_AND_RET
-SYM_FUNC_END(handle_syscall)
+SYM_FUNC_END(handle_sys)
 
 SYM_CODE_START(ret_from_fork)
 	bl	schedule_tail		# a0 = struct task_struct *prev

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.pcrel	t1, __arch_cpu_idle
 	LONG_L	t0, sp, PT_ERA
 	/* 32 byte rollback region */
 	ori	t0, t0, 0x1f
@@ -43,8 +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
-	jirl	ra, t0, 0
+	bl	do_vint
 	RESTORE_ALL_AND_RET
 SYM_FUNC_END(handle_vint)
 
@@ -71,8 +70,7 @@ SYM_FUNC_END(except_vec_cex)
 	SAVE_ALL
 	build_prep_\prep
 	move	a0, sp
-	la.abs	t0, do_\handler
-	jirl	ra, t0, 0
+	bl	do_\handler
 	RESTORE_ALL_AND_RET
 	SYM_FUNC_END(handle_\exception)
 	.endm
@@ -89,11 +87,6 @@ SYM_FUNC_END(except_vec_cex)
 	BUILD_HANDLER watch watch none
 	BUILD_HANDLER reserved reserved none	/* others */
 
-SYM_FUNC_START(handle_sys)
-	la.abs	t0, handle_syscall
-	jr	t0
-SYM_FUNC_END(handle_sys)
-
 SYM_FUNC_START(handler_trampoline)
 	csrwr	t0, EXCEPTION_KS0
 	csrwr	t1, EXCEPTION_KS1

arch/loongarch/kernel/head.S

@@ -107,7 +107,7 @@ SYM_CODE_START(smpboot_entry)
 	li.w		t0, 0x00		# FPE=0, SXE=0, ASXE=0, BTE=0
 	csrwr		t0, LOONGARCH_CSR_EUEN
 
-	la.abs		t0, cpuboot_data
+	la.pcrel	t0, cpuboot_data
 	ld.d		sp, t0, CPU_BOOT_STACK
 	ld.d		tp, t0, CPU_BOOT_TINFO
 

arch/loongarch/mm/tlbex.S

@@ -17,8 +17,7 @@
 	move	a0, sp
 	REG_S	a2, sp, PT_BVADDR
 	li.w	a1, \write
-	la.abs	t0, do_page_fault
-	jirl	ra, t0, 0
+	bl	do_page_fault
 	RESTORE_ALL_AND_RET
 	SYM_FUNC_END(tlb_do_page_fault_\write)
 	.endm
@@ -33,8 +32,7 @@ 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
-	jirl	ra, t0, 0
+	bl	do_page_fault
 	RESTORE_ALL_AND_RET
 SYM_FUNC_END(handle_tlb_protect)
 
@@ -123,7 +121,7 @@ leave_load:
 	ertn
 #ifdef CONFIG_64BIT
 vmalloc_load:
-	la.abs	t1, swapper_pg_dir
+	la.pcrel	t1, swapper_pg_dir
 	b	vmalloc_done_load
 #endif
 
@@ -197,8 +195,7 @@ tlb_huge_update_load:
 nopage_tlb_load:
 	dbar	0
 	csrrd	ra, EXCEPTION_KS2
-	la.abs	t0, tlb_do_page_fault_0
-	jr	t0
+	b	tlb_do_page_fault_0
 SYM_FUNC_END(handle_tlb_load)
 
 SYM_FUNC_START(handle_tlb_store)
@@ -289,7 +286,7 @@ leave_store:
 	ertn
 #ifdef CONFIG_64BIT
 vmalloc_store:
-	la.abs	t1, swapper_pg_dir
+	la.pcrel	t1, swapper_pg_dir
 	b	vmalloc_done_store
 #endif
 
@@ -365,8 +362,7 @@ tlb_huge_update_store:
 nopage_tlb_store:
 	dbar	0
 	csrrd	ra, EXCEPTION_KS2
-	la.abs	t0, tlb_do_page_fault_1
-	jr	t0
+	b	tlb_do_page_fault_1
 SYM_FUNC_END(handle_tlb_store)
 
 SYM_FUNC_START(handle_tlb_modify)
@@ -454,7 +450,7 @@ leave_modify:
 	ertn
 #ifdef CONFIG_64BIT
 vmalloc_modify:
-	la.abs	t1, swapper_pg_dir
+	la.pcrel	t1, swapper_pg_dir
 	b	vmalloc_done_modify
 #endif
 
@@ -524,8 +520,7 @@ tlb_huge_update_modify:
 nopage_tlb_modify:
 	dbar	0
 	csrrd	ra, EXCEPTION_KS2
-	la.abs	t0, tlb_do_page_fault_1
-	jr	t0
+	b	tlb_do_page_fault_1
 SYM_FUNC_END(handle_tlb_modify)
 
 SYM_FUNC_START(handle_tlb_refill)