diff options
Diffstat (limited to 'arch/loongarch/kernel/head.S')
| -rw-r--r-- | arch/loongarch/kernel/head.S | 39 |
1 files changed, 17 insertions, 22 deletions
diff --git a/arch/loongarch/kernel/head.S b/arch/loongarch/kernel/head.S index e3865e92a917..aba548db2446 100644 --- a/arch/loongarch/kernel/head.S +++ b/arch/loongarch/kernel/head.S @@ -43,36 +43,29 @@ SYM_DATA(kernel_fsize, .long _kernel_fsize); SYM_CODE_START(kernel_entry) # kernel entry point - /* Config direct window and set PG */ - SETUP_DMWINS t0 + SETUP_TWINS + SETUP_MODES t0 JUMP_VIRT_ADDR t0, t1 - - /* Enable PG */ - li.w t0, 0xb0 # PLV=0, IE=0, PG=1 - csrwr t0, LOONGARCH_CSR_CRMD - li.w t0, 0x04 # PLV=0, PIE=1, PWE=0 - csrwr t0, LOONGARCH_CSR_PRMD - li.w t0, 0x00 # FPE=0, SXE=0, ASXE=0, BTE=0 - csrwr t0, LOONGARCH_CSR_EUEN + SETUP_DMWINS t0 la.pcrel t0, __bss_start # clear .bss - st.d zero, t0, 0 + LONG_S zero, t0, 0 la.pcrel t1, __bss_stop - LONGSIZE 1: - addi.d t0, t0, LONGSIZE - st.d zero, t0, 0 + PTR_ADDI t0, t0, LONGSIZE + LONG_S zero, t0, 0 bne t0, t1, 1b la.pcrel t0, fw_arg0 - st.d a0, t0, 0 # firmware arguments + PTR_S a0, t0, 0 # firmware arguments la.pcrel t0, fw_arg1 - st.d a1, t0, 0 + PTR_S a1, t0, 0 la.pcrel t0, fw_arg2 - st.d a2, t0, 0 + PTR_S a2, t0, 0 #ifdef CONFIG_PAGE_SIZE_4KB - li.d t0, 0 - li.d t1, CSR_STFILL + LONG_LI t0, 0 + LONG_LI t1, CSR_STFILL csrxchg t0, t1, LOONGARCH_CSR_IMPCTL1 #endif /* KSave3 used for percpu base, initialized as 0 */ @@ -98,7 +91,7 @@ SYM_CODE_START(kernel_entry) # kernel entry point /* Jump to the new kernel: new_pc = current_pc + random_offset */ pcaddi t0, 0 - add.d t0, t0, a0 + PTR_ADD t0, t0, a0 jirl zero, t0, 0xc #endif /* CONFIG_RANDOMIZE_BASE */ @@ -121,12 +114,14 @@ SYM_CODE_END(kernel_entry) */ SYM_CODE_START(smpboot_entry) - SETUP_DMWINS t0 + SETUP_TWINS + SETUP_MODES t0 JUMP_VIRT_ADDR t0, t1 + SETUP_DMWINS t0 #ifdef CONFIG_PAGE_SIZE_4KB - li.d t0, 0 - li.d t1, CSR_STFILL + LONG_LI t0, 0 + LONG_LI t1, CSR_STFILL csrxchg t0, t1, LOONGARCH_CSR_IMPCTL1 #endif /* Enable PG */ |