From 5d248a013281ea80be3375cfc19e8ca541d33c34 Mon Sep 17 00:00:00 2001 From: Evgeny Voevodin Date: Thu, 7 May 2026 18:08:02 +0000 Subject: include: sbi_scratch: Add tmp1 scratch space for RNMI context saving RNMI handlers use MNSCRATCH instead of MSCRATCH and need separate scratch space from regular trap handling. Add tmp1 for RNMI context while tmp0 remains for regular traps. Signed-off-by: Evgeny Voevodin Reviewed-by: Anup Patel Link: https://lore.kernel.org/r/0a5d241fa1db03e71a3f56be24708cbbc8037e28.1778176768.git.evvoevod@tenstorrent.com Signed-off-by: Anup Patel --- firmware/fw_base.S | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'firmware') diff --git a/firmware/fw_base.S b/firmware/fw_base.S index 63bb4473..cdb15429 100644 --- a/firmware/fw_base.S +++ b/firmware/fw_base.S @@ -258,9 +258,10 @@ _scratch_init: /* Store hartid-to-scratch function address in scratch space */ lla a4, _hartid_to_scratch REG_S a4, SBI_SCRATCH_HARTID_TO_SCRATCH_OFFSET(tp) - /* Clear trap_context and tmp0 in scratch space */ + /* Clear trap_context, tmp0 and tmp1 in scratch space */ REG_S zero, SBI_SCRATCH_TRAP_CONTEXT_OFFSET(tp) REG_S zero, SBI_SCRATCH_TMP0_OFFSET(tp) + REG_S zero, SBI_SCRATCH_TMP1_OFFSET(tp) /* Store firmware options in scratch space */ MOV_3R s0, a0, s1, a1, s2, a2 #ifdef FW_OPTIONS -- cgit v1.3.1