aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--arch/sparc/Kconfig.debug4
-rw-r--r--arch/sparc/kernel/irq.c12
-rw-r--r--include/asm-sparc/irqflags.h39
-rw-r--r--include/asm-sparc/system.h22
4 files changed, 51 insertions, 26 deletions
diff --git a/arch/sparc/Kconfig.debug b/arch/sparc/Kconfig.debug
index 120f6b529348..87dd496f15eb 100644
--- a/arch/sparc/Kconfig.debug
+++ b/arch/sparc/Kconfig.debug
@@ -1,5 +1,9 @@
1menu "Kernel hacking" 1menu "Kernel hacking"
2 2
3config TRACE_IRQFLAGS_SUPPORT
4 bool
5 default y
6
3source "lib/Kconfig.debug" 7source "lib/Kconfig.debug"
4 8
5config DEBUG_STACK_USAGE 9config DEBUG_STACK_USAGE
diff --git a/arch/sparc/kernel/irq.c b/arch/sparc/kernel/irq.c
index b76dc03fc318..722d67d32961 100644
--- a/arch/sparc/kernel/irq.c
+++ b/arch/sparc/kernel/irq.c
@@ -56,7 +56,7 @@
56#define SMP_NOP2 56#define SMP_NOP2
57#define SMP_NOP3 57#define SMP_NOP3
58#endif /* SMP */ 58#endif /* SMP */
59unsigned long __local_irq_save(void) 59unsigned long __raw_local_irq_save(void)
60{ 60{
61 unsigned long retval; 61 unsigned long retval;
62 unsigned long tmp; 62 unsigned long tmp;
@@ -74,7 +74,7 @@ unsigned long __local_irq_save(void)
74 return retval; 74 return retval;
75} 75}
76 76
77void local_irq_enable(void) 77void raw_local_irq_enable(void)
78{ 78{
79 unsigned long tmp; 79 unsigned long tmp;
80 80
@@ -89,7 +89,7 @@ void local_irq_enable(void)
89 : "memory"); 89 : "memory");
90} 90}
91 91
92void local_irq_restore(unsigned long old_psr) 92void raw_local_irq_restore(unsigned long old_psr)
93{ 93{
94 unsigned long tmp; 94 unsigned long tmp;
95 95
@@ -105,9 +105,9 @@ void local_irq_restore(unsigned long old_psr)
105 : "memory"); 105 : "memory");
106} 106}
107 107
108EXPORT_SYMBOL(__local_irq_save); 108EXPORT_SYMBOL(__raw_local_irq_save);
109EXPORT_SYMBOL(local_irq_enable); 109EXPORT_SYMBOL(raw_local_irq_enable);
110EXPORT_SYMBOL(local_irq_restore); 110EXPORT_SYMBOL(raw_local_irq_restore);
111 111
112/* 112/*
113 * Dave Redman (djhr@tadpole.co.uk) 113 * Dave Redman (djhr@tadpole.co.uk)
diff --git a/include/asm-sparc/irqflags.h b/include/asm-sparc/irqflags.h
new file mode 100644
index 000000000000..db398fb32826
--- /dev/null
+++ b/include/asm-sparc/irqflags.h
@@ -0,0 +1,39 @@
1/*
2 * include/asm-sparc/irqflags.h
3 *
4 * IRQ flags handling
5 *
6 * This file gets included from lowlevel asm headers too, to provide
7 * wrapped versions of the local_irq_*() APIs, based on the
8 * raw_local_irq_*() functions from the lowlevel headers.
9 */
10#ifndef _ASM_IRQFLAGS_H
11#define _ASM_IRQFLAGS_H
12
13#ifndef __ASSEMBLY__
14
15extern void raw_local_irq_restore(unsigned long);
16extern unsigned long __raw_local_irq_save(void);
17extern void raw_local_irq_enable(void);
18
19static inline unsigned long getipl(void)
20{
21 unsigned long retval;
22
23 __asm__ __volatile__("rd %%psr, %0" : "=r" (retval));
24 return retval;
25}
26
27#define raw_local_save_flags(flags) ((flags) = getipl())
28#define raw_local_irq_save(flags) ((flags) = __raw_local_irq_save())
29#define raw_local_irq_disable() ((void) __raw_local_irq_save())
30#define raw_irqs_disabled() ((getipl() & PSR_PIL) != 0)
31
32static inline int raw_irqs_disabled_flags(unsigned long flags)
33{
34 return ((flags & PSR_PIL) != 0);
35}
36
37#endif /* (__ASSEMBLY__) */
38
39#endif /* !(_ASM_IRQFLAGS_H) */
diff --git a/include/asm-sparc/system.h b/include/asm-sparc/system.h
index d1a2572e3f55..8c259de02614 100644
--- a/include/asm-sparc/system.h
+++ b/include/asm-sparc/system.h
@@ -15,6 +15,8 @@
15 15
16#ifndef __ASSEMBLY__ 16#ifndef __ASSEMBLY__
17 17
18#include <linux/irqflags.h>
19
18/* 20/*
19 * Sparc (general) CPU types 21 * Sparc (general) CPU types
20 */ 22 */
@@ -164,26 +166,6 @@ extern void fpsave(unsigned long *fpregs, unsigned long *fsr,
164 "o0", "o1", "o2", "o3", "o7"); \ 166 "o0", "o1", "o2", "o3", "o7"); \
165 } while(0) 167 } while(0)
166 168
167/*
168 * Changing the IRQ level on the Sparc.
169 */
170extern void local_irq_restore(unsigned long);
171extern unsigned long __local_irq_save(void);
172extern void local_irq_enable(void);
173
174static inline unsigned long getipl(void)
175{
176 unsigned long retval;
177
178 __asm__ __volatile__("rd %%psr, %0" : "=r" (retval));
179 return retval;
180}
181
182#define local_save_flags(flags) ((flags) = getipl())
183#define local_irq_save(flags) ((flags) = __local_irq_save())
184#define local_irq_disable() ((void) __local_irq_save())
185#define irqs_disabled() ((getipl() & PSR_PIL) != 0)
186
187/* XXX Change this if we ever use a PSO mode kernel. */ 169/* XXX Change this if we ever use a PSO mode kernel. */
188#define mb() __asm__ __volatile__ ("" : : : "memory") 170#define mb() __asm__ __volatile__ ("" : : : "memory")
189#define rmb() mb() 171#define rmb() mb()