diff options
Diffstat (limited to 'arch/loongarch/include/asm/stackframe.h')
| -rw-r--r-- | arch/loongarch/include/asm/stackframe.h | 37 |
1 files changed, 35 insertions, 2 deletions
diff --git a/arch/loongarch/include/asm/stackframe.h b/arch/loongarch/include/asm/stackframe.h index 4ca953062b5b..3eda298702b1 100644 --- a/arch/loongarch/include/asm/stackframe.h +++ b/arch/loongarch/include/asm/stackframe.h @@ -7,11 +7,13 @@ #include <linux/threads.h> +#include <asm/addrspace.h> #include <asm/asm.h> #include <asm/asmmacro.h> #include <asm/asm-offsets.h> #include <asm/loongarch.h> #include <asm/thread_info.h> +#include <asm/unwind_hints.h> /* Make the addition of cfi info a little easier. */ .macro cfi_rel_offset reg offset=0 docfi=0 @@ -36,6 +38,31 @@ cfi_restore \reg \offset \docfi .endm + .macro SETUP_DMWINS temp + li.d \temp, CSR_DMW0_INIT # WUC, PLV0, 0x8000 xxxx xxxx xxxx + csrwr \temp, LOONGARCH_CSR_DMWIN0 + li.d \temp, CSR_DMW1_INIT # CAC, PLV0, 0x9000 xxxx xxxx xxxx + csrwr \temp, LOONGARCH_CSR_DMWIN1 + li.d \temp, CSR_DMW2_INIT # WUC, PLV0, 0xa000 xxxx xxxx xxxx + csrwr \temp, LOONGARCH_CSR_DMWIN2 + li.d \temp, CSR_DMW3_INIT # 0x0, unused + csrwr \temp, LOONGARCH_CSR_DMWIN3 + .endm + +/* Jump to the runtime virtual address. */ + .macro JUMP_VIRT_ADDR temp1 temp2 + li.d \temp1, CACHE_BASE + pcaddi \temp2, 0 + bstrins.d \temp1, \temp2, (DMW_PABITS - 1), 0 + jirl zero, \temp1, 0xc + .endm + + .macro STACKLEAK_ERASE +#ifdef CONFIG_GCC_PLUGIN_STACKLEAK + bl stackleak_erase_on_task_stack +#endif + .endm + .macro BACKUP_T0T1 csrwr t0, EXCEPTION_KS0 csrwr t1, EXCEPTION_KS1 @@ -77,7 +104,7 @@ * 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 @@ -90,7 +117,7 @@ .endm .macro set_saved_sp stackp temp temp2 - la.abs \temp, kernelsp + la.pcrel \temp, kernelsp #ifdef CONFIG_SMP LONG_ADD \temp, \temp, u0 #endif @@ -149,6 +176,11 @@ cfi_st u0, PT_R21, \docfi csrrd u0, PERCPU_BASE_KS 9: +#ifdef CONFIG_KGDB + li.w t0, CSR_CRMD_WE + csrxchg t0, t0, LOONGARCH_CSR_CRMD +#endif + UNWIND_HINT_REGS .endm .macro SAVE_ALL docfi=0 @@ -206,6 +238,7 @@ .macro RESTORE_SP_AND_RET docfi=0 cfi_ld sp, PT_R3, \docfi + UNWIND_HINT_FUNC ertn .endm |