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-rw-r--r--arch/loongarch/include/asm/stackframe.h13
1 files changed, 12 insertions, 1 deletions
diff --git a/arch/loongarch/include/asm/stackframe.h b/arch/loongarch/include/asm/stackframe.h
index 45b507a7b06f..66736837085b 100644
--- a/arch/loongarch/include/asm/stackframe.h
+++ b/arch/loongarch/include/asm/stackframe.h
@@ -38,11 +38,22 @@
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
- or \temp1, \temp1, \temp2
+ bstrins.d \temp1, \temp2, (DMW_PABITS - 1), 0
jirl zero, \temp1, 0xc
.endm