diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-21 17:37:27 -0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-21 17:37:27 -0400 |
commit | e36f561a2c88394ef2708f1ab300fe8a79e9f651 (patch) | |
tree | 385f378c4240955e4356d49686a8ef606a82a7c1 /arch/ia64/include | |
parent | 70ada77920723fbc2b35e9b301022fb1e166b41b (diff) | |
parent | df9ee29270c11dba7d0fe0b83ce47a4d8e8d2101 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-irqflags
* git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-irqflags:
Fix IRQ flag handling naming
MIPS: Add missing #inclusions of <linux/irq.h>
smc91x: Add missing #inclusion of <linux/irq.h>
Drop a couple of unnecessary asm/system.h inclusions
SH: Add missing consts to sys_execve() declaration
Blackfin: Rename IRQ flags handling functions
Blackfin: Add missing dep to asm/irqflags.h
Blackfin: Rename DES PC2() symbol to avoid collision
Blackfin: Split the BF532 BFIN_*_FIO_FLAG() functions to their own header
Blackfin: Split PLL code from mach-specific cdef headers
Diffstat (limited to 'arch/ia64/include')
-rw-r--r-- | arch/ia64/include/asm/irqflags.h | 94 | ||||
-rw-r--r-- | arch/ia64/include/asm/system.h | 76 |
2 files changed, 94 insertions, 76 deletions
diff --git a/arch/ia64/include/asm/irqflags.h b/arch/ia64/include/asm/irqflags.h new file mode 100644 index 000000000000..f82d6be2ecd2 --- /dev/null +++ b/arch/ia64/include/asm/irqflags.h | |||
@@ -0,0 +1,94 @@ | |||
1 | /* | ||
2 | * IRQ flags defines. | ||
3 | * | ||
4 | * Copyright (C) 1998-2003 Hewlett-Packard Co | ||
5 | * David Mosberger-Tang <davidm@hpl.hp.com> | ||
6 | * Copyright (C) 1999 Asit Mallick <asit.k.mallick@intel.com> | ||
7 | * Copyright (C) 1999 Don Dugger <don.dugger@intel.com> | ||
8 | */ | ||
9 | |||
10 | #ifndef _ASM_IA64_IRQFLAGS_H | ||
11 | #define _ASM_IA64_IRQFLAGS_H | ||
12 | |||
13 | #ifdef CONFIG_IA64_DEBUG_IRQ | ||
14 | extern unsigned long last_cli_ip; | ||
15 | static inline void arch_maybe_save_ip(unsigned long flags) | ||
16 | { | ||
17 | if (flags & IA64_PSR_I) | ||
18 | last_cli_ip = ia64_getreg(_IA64_REG_IP); | ||
19 | } | ||
20 | #else | ||
21 | #define arch_maybe_save_ip(flags) do {} while (0) | ||
22 | #endif | ||
23 | |||
24 | /* | ||
25 | * - clearing psr.i is implicitly serialized (visible by next insn) | ||
26 | * - setting psr.i requires data serialization | ||
27 | * - we need a stop-bit before reading PSR because we sometimes | ||
28 | * write a floating-point register right before reading the PSR | ||
29 | * and that writes to PSR.mfl | ||
30 | */ | ||
31 | |||
32 | static inline unsigned long arch_local_save_flags(void) | ||
33 | { | ||
34 | ia64_stop(); | ||
35 | #ifdef CONFIG_PARAVIRT | ||
36 | return ia64_get_psr_i(); | ||
37 | #else | ||
38 | return ia64_getreg(_IA64_REG_PSR); | ||
39 | #endif | ||
40 | } | ||
41 | |||
42 | static inline unsigned long arch_local_irq_save(void) | ||
43 | { | ||
44 | unsigned long flags = arch_local_save_flags(); | ||
45 | |||
46 | ia64_stop(); | ||
47 | ia64_rsm(IA64_PSR_I); | ||
48 | arch_maybe_save_ip(flags); | ||
49 | return flags; | ||
50 | } | ||
51 | |||
52 | static inline void arch_local_irq_disable(void) | ||
53 | { | ||
54 | #ifdef CONFIG_IA64_DEBUG_IRQ | ||
55 | arch_local_irq_save(); | ||
56 | #else | ||
57 | ia64_stop(); | ||
58 | ia64_rsm(IA64_PSR_I); | ||
59 | #endif | ||
60 | } | ||
61 | |||
62 | static inline void arch_local_irq_enable(void) | ||
63 | { | ||
64 | ia64_stop(); | ||
65 | ia64_ssm(IA64_PSR_I); | ||
66 | ia64_srlz_d(); | ||
67 | } | ||
68 | |||
69 | static inline void arch_local_irq_restore(unsigned long flags) | ||
70 | { | ||
71 | #ifdef CONFIG_IA64_DEBUG_IRQ | ||
72 | unsigned long old_psr = arch_local_save_flags(); | ||
73 | #endif | ||
74 | ia64_intrin_local_irq_restore(flags & IA64_PSR_I); | ||
75 | arch_maybe_save_ip(old_psr & ~flags); | ||
76 | } | ||
77 | |||
78 | static inline bool arch_irqs_disabled_flags(unsigned long flags) | ||
79 | { | ||
80 | return (flags & IA64_PSR_I) == 0; | ||
81 | } | ||
82 | |||
83 | static inline bool arch_irqs_disabled(void) | ||
84 | { | ||
85 | return arch_irqs_disabled_flags(arch_local_save_flags()); | ||
86 | } | ||
87 | |||
88 | static inline void arch_safe_halt(void) | ||
89 | { | ||
90 | ia64_pal_halt_light(); /* PAL_HALT_LIGHT */ | ||
91 | } | ||
92 | |||
93 | |||
94 | #endif /* _ASM_IA64_IRQFLAGS_H */ | ||
diff --git a/arch/ia64/include/asm/system.h b/arch/ia64/include/asm/system.h index dd028f2b13b3..6cca30705d50 100644 --- a/arch/ia64/include/asm/system.h +++ b/arch/ia64/include/asm/system.h | |||
@@ -107,87 +107,11 @@ extern struct ia64_boot_param { | |||
107 | */ | 107 | */ |
108 | #define set_mb(var, value) do { (var) = (value); mb(); } while (0) | 108 | #define set_mb(var, value) do { (var) = (value); mb(); } while (0) |
109 | 109 | ||
110 | #define safe_halt() ia64_pal_halt_light() /* PAL_HALT_LIGHT */ | ||
111 | |||
112 | /* | 110 | /* |
113 | * The group barrier in front of the rsm & ssm are necessary to ensure | 111 | * The group barrier in front of the rsm & ssm are necessary to ensure |
114 | * that none of the previous instructions in the same group are | 112 | * that none of the previous instructions in the same group are |
115 | * affected by the rsm/ssm. | 113 | * affected by the rsm/ssm. |
116 | */ | 114 | */ |
117 | /* For spinlocks etc */ | ||
118 | |||
119 | /* | ||
120 | * - clearing psr.i is implicitly serialized (visible by next insn) | ||
121 | * - setting psr.i requires data serialization | ||
122 | * - we need a stop-bit before reading PSR because we sometimes | ||
123 | * write a floating-point register right before reading the PSR | ||
124 | * and that writes to PSR.mfl | ||
125 | */ | ||
126 | #ifdef CONFIG_PARAVIRT | ||
127 | #define __local_save_flags() ia64_get_psr_i() | ||
128 | #else | ||
129 | #define __local_save_flags() ia64_getreg(_IA64_REG_PSR) | ||
130 | #endif | ||
131 | |||
132 | #define __local_irq_save(x) \ | ||
133 | do { \ | ||
134 | ia64_stop(); \ | ||
135 | (x) = __local_save_flags(); \ | ||
136 | ia64_stop(); \ | ||
137 | ia64_rsm(IA64_PSR_I); \ | ||
138 | } while (0) | ||
139 | |||
140 | #define __local_irq_disable() \ | ||
141 | do { \ | ||
142 | ia64_stop(); \ | ||
143 | ia64_rsm(IA64_PSR_I); \ | ||
144 | } while (0) | ||
145 | |||
146 | #define __local_irq_restore(x) ia64_intrin_local_irq_restore((x) & IA64_PSR_I) | ||
147 | |||
148 | #ifdef CONFIG_IA64_DEBUG_IRQ | ||
149 | |||
150 | extern unsigned long last_cli_ip; | ||
151 | |||
152 | # define __save_ip() last_cli_ip = ia64_getreg(_IA64_REG_IP) | ||
153 | |||
154 | # define local_irq_save(x) \ | ||
155 | do { \ | ||
156 | unsigned long __psr; \ | ||
157 | \ | ||
158 | __local_irq_save(__psr); \ | ||
159 | if (__psr & IA64_PSR_I) \ | ||
160 | __save_ip(); \ | ||
161 | (x) = __psr; \ | ||
162 | } while (0) | ||
163 | |||
164 | # define local_irq_disable() do { unsigned long __x; local_irq_save(__x); } while (0) | ||
165 | |||
166 | # define local_irq_restore(x) \ | ||
167 | do { \ | ||
168 | unsigned long __old_psr, __psr = (x); \ | ||
169 | \ | ||
170 | local_save_flags(__old_psr); \ | ||
171 | __local_irq_restore(__psr); \ | ||
172 | if ((__old_psr & IA64_PSR_I) && !(__psr & IA64_PSR_I)) \ | ||
173 | __save_ip(); \ | ||
174 | } while (0) | ||
175 | |||
176 | #else /* !CONFIG_IA64_DEBUG_IRQ */ | ||
177 | # define local_irq_save(x) __local_irq_save(x) | ||
178 | # define local_irq_disable() __local_irq_disable() | ||
179 | # define local_irq_restore(x) __local_irq_restore(x) | ||
180 | #endif /* !CONFIG_IA64_DEBUG_IRQ */ | ||
181 | |||
182 | #define local_irq_enable() ({ ia64_stop(); ia64_ssm(IA64_PSR_I); ia64_srlz_d(); }) | ||
183 | #define local_save_flags(flags) ({ ia64_stop(); (flags) = __local_save_flags(); }) | ||
184 | |||
185 | #define irqs_disabled() \ | ||
186 | ({ \ | ||
187 | unsigned long __ia64_id_flags; \ | ||
188 | local_save_flags(__ia64_id_flags); \ | ||
189 | (__ia64_id_flags & IA64_PSR_I) == 0; \ | ||
190 | }) | ||
191 | 115 | ||
192 | #ifdef __KERNEL__ | 116 | #ifdef __KERNEL__ |
193 | 117 | ||