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authorThomas Bushnell <thomas@gnu.org>1999-04-26 05:49:38 +0000
committerThomas Bushnell <thomas@gnu.org>1999-04-26 05:49:38 +0000
commit59ec5ca501a2f5d9fc2b2c41d474ec30e4fd67ee (patch)
tree97ace5e7a72b66e98b9210b7e99fc7f30d674e80 /linux/dev/kernel/softirq.c
parent195a918c4a64e79bfccb585801aeec0077d68a24 (diff)
1998-12-02 OKUJI Yoshinori <okuji@kuicr.kyoto-u.ac.jp>
* configure.in: Fix linuxdev option handling. * linux/Drivers.in: Remove linuxdev option and fix linking files. * linux/Makefile.in: Replace @DEFS@ with -DLINUX_DEV. * linux/dev/arch/i386/kernel/irq.c: Include missing header files. * linux/dev/arch/i386/kernel/setup.c: Include <device-drivers.h>. * linux/dev/glue/kmem.c: Add printf declaration. * linux/dev/glue/misc.c: Include <linux/types.h>. * linux/dev/init/main.c: Call linux_sched_init instead of sched_init. * linux/dev/kernel/sched.c: Add timer_bh declaration. (tqueue_bh): Fix the argument. (linux_sched_init): Renamed from sched_init. 1998-11-30 OKUJI Yoshinori <okuji@kuicr.kyoto-u.ac.jp> Clean up linux emulation code to make it architecture-independent as much as possible. * linux: Renamed from linuxdev. * Makefile.in (objfiles): Add linux.o instead of linuxdev.o. (MAKE): New variable. Used for the linux.o target. * configure.in: Add AC_CHECK_TOOL(MAKE, make). * i386/i386/spl.h: Include <i386/ipl.h>, for compatibility with OSF Mach 3.0. Suggested by Elgin Lee <ehl@funghi.com>. * linux/src: Renamed from linux/linux. * linux/dev: Renamed from linux/mach. * linux/Drivers.in (AC_INIT): Use dev/include/linux/autoconf.h, instead of mach/include/linux/autoconf.h. * Makefile.in (all): Target ../linux.o instead of ../linuxdev.o. * linux/dev/drivers/block/genhd.c: Include <machine/spl.h> instead of <i386/ipl.h>. * linux/dev/drivers/net/auto_irq.c: Remove unneeded header files, <i386/ipl.h> and <i386/pic.h>. * linux/dev/init/main.c: Many i386-dependent codes moved to ... * linux/dev/arch/i386/irq.c: ... here. * linux/dev/arch/i386/setup.c: New file. * linux/dev/arch/i386/linux_emul.h: Likewise. * linux/dev/arch/i386/glue/timer.c: Merged into sched.c. * linux/dev/arch/i386/glue/sched.c: Include <machine/spl.h> instead of <i386/ipl.h>, and moved to ... * linux/dev/kernel/sched.c: ... here. * linux/dev/arch/i386/glue/block.c: Include <machine/spl.h> and <linux_emul.h>, instead of i386-dependent header files, and moved to ... * linux/dev/glue/blocl.c: ... here. * linux/dev/arch/i386/glue/net.c: Include <machine/spl.h> and <linux_emul.h>, instead of i386-dependent header files, and moved to ... * linux/dev/glue/net.c: ... here. * linux/dev/arch/i386/glue/misc.c: Remove `x86' and moved to ... * linux/dev/glue/misc.c: ... here. * linux/dev/arch/i386/glue/kmem.c: Moved to ... * linux/dev/glue/kmem.c: ... here.
Diffstat (limited to 'linux/dev/kernel/softirq.c')
-rw-r--r--linux/dev/kernel/softirq.c46
1 files changed, 46 insertions, 0 deletions
diff --git a/linux/dev/kernel/softirq.c b/linux/dev/kernel/softirq.c
new file mode 100644
index 0000000..96102a7
--- /dev/null
+++ b/linux/dev/kernel/softirq.c
@@ -0,0 +1,46 @@
+/*
+ * linux/kernel/softirq.c
+ *
+ * Copyright (C) 1992 Linus Torvalds
+ *
+ * do_bottom_half() runs at normal kernel priority: all interrupts
+ * enabled. do_bottom_half() is atomic with respect to itself: a
+ * bottom_half handler need not be re-entrant.
+ */
+
+#define MACH_INCLUDE
+#include <linux/ptrace.h>
+#include <linux/interrupt.h>
+#include <asm/system.h>
+
+int bh_mask_count[32];
+unsigned long bh_active = 0;
+unsigned long bh_mask = 0;
+void (*bh_base[32]) (void);
+
+void
+linux_soft_intr (void)
+{
+ unsigned long active;
+ unsigned long mask, left;
+ void (**bh) (void);
+
+ sti ();
+ bh = bh_base;
+ active = bh_active & bh_mask;
+ for (mask = 1, left = ~0; left & active; bh++, mask += mask, left += left)
+ {
+ if (mask & active)
+ {
+ void (*fn) (void);
+ bh_active &= ~mask;
+ fn = *bh;
+ if (!fn)
+ goto bad_bh;
+ fn ();
+ }
+ }
+ return;
+bad_bh:
+ printk ("linux_soft_intr:bad interrupt handler entry %08lx\n", mask);
+}