From 071106ecf68c401173c58808b1cf5f68cc50d390 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 05 Jan 2024 08:39:27 +0000
Subject: [PATCH] change wifi driver to cypress
---
kernel/arch/nds32/kernel/sys_nds32.c | 34 ++++++++++++++++++++++++++++++++++
1 files changed, 34 insertions(+), 0 deletions(-)
diff --git a/kernel/arch/nds32/kernel/sys_nds32.c b/kernel/arch/nds32/kernel/sys_nds32.c
index 9de93ab..cb2d1e2 100644
--- a/kernel/arch/nds32/kernel/sys_nds32.c
+++ b/kernel/arch/nds32/kernel/sys_nds32.c
@@ -6,6 +6,8 @@
#include <asm/cachectl.h>
#include <asm/proc-fns.h>
+#include <asm/fpu.h>
+#include <asm/fp_udfiex_crtl.h>
SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
unsigned long, prot, unsigned long, flags,
@@ -48,3 +50,35 @@
return 0;
}
+
+SYSCALL_DEFINE2(fp_udfiex_crtl, unsigned int, cmd, unsigned int, act)
+{
+#if IS_ENABLED(CONFIG_SUPPORT_DENORMAL_ARITHMETIC)
+ int old_udf_iex;
+
+ if (!used_math()) {
+ load_fpu(&init_fpuregs);
+ current->thread.fpu.UDF_IEX_trap = init_fpuregs.UDF_IEX_trap;
+ set_used_math();
+ }
+
+ old_udf_iex = current->thread.fpu.UDF_IEX_trap;
+ act &= (FPCSR_mskUDFE | FPCSR_mskIEXE);
+
+ switch (cmd) {
+ case DISABLE_UDF_IEX_TRAP:
+ current->thread.fpu.UDF_IEX_trap &= ~act;
+ break;
+ case ENABLE_UDF_IEX_TRAP:
+ current->thread.fpu.UDF_IEX_trap |= act;
+ break;
+ case GET_UDF_IEX_TRAP:
+ break;
+ default:
+ return -EINVAL;
+ }
+ return old_udf_iex;
+#else
+ return -ENOTSUPP;
+#endif
+}
--
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