Changeset ef56a43 in mainline for kernel/genarch

Timestamp:

2019-04-06T06:55:42Z (7 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

fd67c9f

Parents:

29beac8

Message:

Do not send EOI to pic1 for the first 8 IRQs

Location:

kernel/genarch

Files:

• include/genarch/drivers/i8259/i8259.h (modified) (1 diff)
• src/drivers/i8259/i8259.c (modified) (1 diff)

kernel/genarch/include/genarch/drivers/i8259/i8259.h

@@ -55 +55 @@
 extern void pic_enable_irqs(uint16_t);
 extern void pic_disable_irqs(uint16_t);
-extern void pic_eoi(void);
+extern void pic_eoi(unsigned int);
 
 #endif

kernel/genarch/src/drivers/i8259/i8259.c

@@ -112 +112 @@
 }
 
-void pic_eoi(void)
+void pic_eoi(unsigned int irq)
 {
+        if (irq >= 8)
+                pio_write_8(&saved_pic1->port1, PIC_OCW4 | PIC_OCW4_NSEOI);
         pio_write_8(&saved_pic0->port1, PIC_OCW4 | PIC_OCW4_NSEOI);
-        pio_write_8(&saved_pic1->port1, PIC_OCW4 | PIC_OCW4_NSEOI);
 }