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authorAl Viro <viro@ftp.linux.org.uk>2006-10-07 09:16:45 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-07 13:51:14 -0400
commit2850bc273776cbb1b510c5828e9e456dffb50a32 (patch)
tree340bd599b6efde40618ef89de59cbe957269eac2 /arch/m68k/kernel
parent00079e04fe478cd3c59ae2106ef2fbe779e67024 (diff)
[PATCH] m68k pt_regs fixes
m68k_handle_int() split in two functions: __m68k_handle_int() takes pt_regs * and does set_irq_regs(); m68k_handle_int() doesn't get pt_regs *. Places where we used to call m68k_handle_int() recursively with the same pt_regs have simply lost the second argument, the rest is switched to __m68k_handle_int(). The rest of patch is just dropping pt_regs * where needed. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/m68k/kernel')
-rw-r--r--arch/m68k/kernel/entry.S4
-rw-r--r--arch/m68k/kernel/ints.c20
-rw-r--r--arch/m68k/kernel/setup.c2
-rw-r--r--arch/m68k/kernel/time.c7
4 files changed, 21 insertions, 12 deletions
diff --git a/arch/m68k/kernel/entry.S b/arch/m68k/kernel/entry.S
index 9083c8b7659f..34bf7bd126d2 100644
--- a/arch/m68k/kernel/entry.S
+++ b/arch/m68k/kernel/entry.S
@@ -205,7 +205,7 @@ ENTRY(auto_inthandler)
205 movel %sp,%sp@- 205 movel %sp,%sp@-
206 movel %d0,%sp@- | put vector # on stack 206 movel %d0,%sp@- | put vector # on stack
207auto_irqhandler_fixup = . + 2 207auto_irqhandler_fixup = . + 2
208 jsr m68k_handle_int | process the IRQ 208 jsr __m68k_handle_int | process the IRQ
209 addql #8,%sp | pop parameters off stack 209 addql #8,%sp | pop parameters off stack
210 210
211ret_from_interrupt: 211ret_from_interrupt:
@@ -239,7 +239,7 @@ user_irqvec_fixup = . + 2
239 movel %sp,%sp@- 239 movel %sp,%sp@-
240 movel %d0,%sp@- | put vector # on stack 240 movel %d0,%sp@- | put vector # on stack
241user_irqhandler_fixup = . + 2 241user_irqhandler_fixup = . + 2
242 jsr m68k_handle_int | process the IRQ 242 jsr __m68k_handle_int | process the IRQ
243 addql #8,%sp | pop parameters off stack 243 addql #8,%sp | pop parameters off stack
244 244
245 subqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1) 245 subqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1)
diff --git a/arch/m68k/kernel/ints.c b/arch/m68k/kernel/ints.c
index b33e37fb7b0e..6fa893fc5fd6 100644
--- a/arch/m68k/kernel/ints.c
+++ b/arch/m68k/kernel/ints.c
@@ -39,6 +39,7 @@
39#include <asm/page.h> 39#include <asm/page.h>
40#include <asm/machdep.h> 40#include <asm/machdep.h>
41#include <asm/cacheflush.h> 41#include <asm/cacheflush.h>
42#include <asm/irq_regs.h>
42 43
43#ifdef CONFIG_Q40 44#ifdef CONFIG_Q40
44#include <asm/q40ints.h> 45#include <asm/q40ints.h>
@@ -104,7 +105,7 @@ void __init init_IRQ(void)
104 * @handler: called from auto vector interrupts 105 * @handler: called from auto vector interrupts
105 * 106 *
106 * setup the handler to be called from auto vector interrupts instead of the 107 * setup the handler to be called from auto vector interrupts instead of the
107 * standard m68k_handle_int(), it will be called with irq numbers in the range 108 * standard __m68k_handle_int(), it will be called with irq numbers in the range
108 * from IRQ_AUTO_1 - IRQ_AUTO_7. 109 * from IRQ_AUTO_1 - IRQ_AUTO_7.
109 */ 110 */
110void __init m68k_setup_auto_interrupt(void (*handler)(unsigned int, struct pt_regs *)) 111void __init m68k_setup_auto_interrupt(void (*handler)(unsigned int, struct pt_regs *))
@@ -123,7 +124,7 @@ void __init m68k_setup_auto_interrupt(void (*handler)(unsigned int, struct pt_re
123 * setup user vector interrupts, this includes activating the specified range 124 * setup user vector interrupts, this includes activating the specified range
124 * of interrupts, only then these interrupts can be requested (note: this is 125 * of interrupts, only then these interrupts can be requested (note: this is
125 * different from auto vector interrupts). An optional handler can be installed 126 * different from auto vector interrupts). An optional handler can be installed
126 * to be called instead of the default m68k_handle_int(), it will be called 127 * to be called instead of the default __m68k_handle_int(), it will be called
127 * with irq numbers starting from IRQ_USER. 128 * with irq numbers starting from IRQ_USER.
128 */ 129 */
129void __init m68k_setup_user_interrupt(unsigned int vec, unsigned int cnt, 130void __init m68k_setup_user_interrupt(unsigned int vec, unsigned int cnt,
@@ -215,7 +216,7 @@ int setup_irq(unsigned int irq, struct irq_node *node)
215} 216}
216 217
217int request_irq(unsigned int irq, 218int request_irq(unsigned int irq,
218 irqreturn_t (*handler) (int, void *, struct pt_regs *), 219 irqreturn_t (*handler) (int, void *),
219 unsigned long flags, const char *devname, void *dev_id) 220 unsigned long flags, const char *devname, void *dev_id)
220{ 221{
221 struct irq_node *node; 222 struct irq_node *node;
@@ -379,18 +380,25 @@ unsigned int irq_canonicalize(unsigned int irq)
379 380
380EXPORT_SYMBOL(irq_canonicalize); 381EXPORT_SYMBOL(irq_canonicalize);
381 382
382asmlinkage void m68k_handle_int(unsigned int irq, struct pt_regs *regs) 383asmlinkage void m68k_handle_int(unsigned int irq)
383{ 384{
384 struct irq_node *node; 385 struct irq_node *node;
385
386 kstat_cpu(0).irqs[irq]++; 386 kstat_cpu(0).irqs[irq]++;
387 node = irq_list[irq]; 387 node = irq_list[irq];
388 do { 388 do {
389 node->handler(irq, node->dev_id, regs); 389 node->handler(irq, node->dev_id);
390 node = node->next; 390 node = node->next;
391 } while (node); 391 } while (node);
392} 392}
393 393
394asmlinkage void __m68k_handle_int(unsigned int irq, struct pt_regs *regs)
395{
396 struct pt_regs *old_regs;
397 old_regs = set_irq_regs(regs);
398 m68k_handle_int(irq);
399 set_irq_regs(old_regs);
400}
401
394asmlinkage void handle_badint(struct pt_regs *regs) 402asmlinkage void handle_badint(struct pt_regs *regs)
395{ 403{
396 kstat_cpu(0).irqs[0]++; 404 kstat_cpu(0).irqs[0]++;
diff --git a/arch/m68k/kernel/setup.c b/arch/m68k/kernel/setup.c
index f2d7ee0ee18c..869c4861346e 100644
--- a/arch/m68k/kernel/setup.c
+++ b/arch/m68k/kernel/setup.c
@@ -64,7 +64,7 @@ static char m68k_command_line[CL_SIZE];
64 64
65char m68k_debug_device[6] = ""; 65char m68k_debug_device[6] = "";
66 66
67void (*mach_sched_init) (irqreturn_t (*handler)(int, void *, struct pt_regs *)) __initdata = NULL; 67void (*mach_sched_init) (irqreturn_t (*handler)(int, void *)) __initdata = NULL;
68/* machine dependent irq functions */ 68/* machine dependent irq functions */
69void (*mach_init_IRQ) (void) __initdata = NULL; 69void (*mach_init_IRQ) (void) __initdata = NULL;
70void (*mach_get_model) (char *model); 70void (*mach_get_model) (char *model);
diff --git a/arch/m68k/kernel/time.c b/arch/m68k/kernel/time.c
index 28b2fefa4513..2a599c3ed787 100644
--- a/arch/m68k/kernel/time.c
+++ b/arch/m68k/kernel/time.c
@@ -21,6 +21,7 @@
21 21
22#include <asm/machdep.h> 22#include <asm/machdep.h>
23#include <asm/io.h> 23#include <asm/io.h>
24#include <asm/irq_regs.h>
24 25
25#include <linux/time.h> 26#include <linux/time.h>
26#include <linux/timex.h> 27#include <linux/timex.h>
@@ -37,13 +38,13 @@ static inline int set_rtc_mmss(unsigned long nowtime)
37 * timer_interrupt() needs to keep up the real-time clock, 38 * timer_interrupt() needs to keep up the real-time clock,
38 * as well as call the "do_timer()" routine every clocktick 39 * as well as call the "do_timer()" routine every clocktick
39 */ 40 */
40static irqreturn_t timer_interrupt(int irq, void *dummy, struct pt_regs * regs) 41static irqreturn_t timer_interrupt(int irq, void *dummy)
41{ 42{
42 do_timer(1); 43 do_timer(1);
43#ifndef CONFIG_SMP 44#ifndef CONFIG_SMP
44 update_process_times(user_mode(regs)); 45 update_process_times(user_mode(get_irq_regs()));
45#endif 46#endif
46 profile_tick(CPU_PROFILING, regs); 47 profile_tick(CPU_PROFILING);
47 48
48#ifdef CONFIG_HEARTBEAT 49#ifdef CONFIG_HEARTBEAT
49 /* use power LED as a heartbeat instead -- much more useful 50 /* use power LED as a heartbeat instead -- much more useful