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-rw-r--r--core/minute-ia/irq_handler.h11
1 files changed, 10 insertions, 1 deletions
diff --git a/core/minute-ia/irq_handler.h b/core/minute-ia/irq_handler.h
index db05601d6b..b76f51681a 100644
--- a/core/minute-ia/irq_handler.h
+++ b/core/minute-ia/irq_handler.h
@@ -10,6 +10,14 @@
#include "registers.h"
+#ifndef CONFIG_FPU
+#define save_fpu_ctx "fnsave 20(%eax)\n"
+#define rstr_fpu_ctx "frstor 20(%eax)\n"
+#else
+#define save_fpu_ctx
+#define rstr_fpu_ctx
+#endif
+
struct irq_data {
void (*routine)(void);
int irq;
@@ -47,10 +55,12 @@ struct irq_data {
"test %eax, %eax\n" \
"je 1f\n" \
"movl current_task, %eax\n" \
+ save_fpu_ctx \
"movl %esp, (%eax)\n" \
"movl next_task, %eax\n" \
"movl %eax, current_task\n" \
"movl (%eax), %esp\n" \
+ rstr_fpu_ctx \
"1:\n" \
"movl $"#vector ", (0xFEC00040)\n" \
"sub $1, __in_isr\n" \
@@ -58,5 +68,4 @@ struct irq_data {
"popa\n" \
"iret\n" \
);
-
#endif /* __CROS_EC_IRQ_HANDLER_H */