Lines Matching +full:0 +full:x31
70 REG_L a2, 0(a0)
78 ALTERNATIVE("sfence.vma", "nop", 0, RISCV_ISA_EXT_SVVPTC, 1)
99 * register will contain 0, and we should continue on the current TP.
125 andi sp, sp, 0x1
162 * Set the scratch register to 0, so that if a recursive exception
196 REG_L t1, 0(t0)
286 /* we reach here from kernel context, sscratch must be 0 */
287 csrrw x31, CSR_SCRATCH, x31
288 asm_per_cpu sp, overflow_stack, x31
289 li x31, OVERFLOW_STACK_SIZE
290 add sp, sp, x31
291 /* zero out x31 again and restore x31 */
292 xor x31, x31, x31
293 csrrw x31, CSR_SCRATCH, x31