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authorLinus Torvalds <torvalds@linux-foundation.org>2010-10-21 23:37:27 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-21 23:37:27 +0200
commite36f561a2c88394ef2708f1ab300fe8a79e9f651 (patch)
tree385f378c4240955e4356d49686a8ef606a82a7c1 /arch/m32r
parentMerge branch 'next-spi' of git://git.secretlab.ca/git/linux-2.6 (diff)
parentFix IRQ flag handling naming (diff)
downloadlinux-e36f561a2c88394ef2708f1ab300fe8a79e9f651.tar.xz
linux-e36f561a2c88394ef2708f1ab300fe8a79e9f651.zip
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/m32r')
-rw-r--r--arch/m32r/include/asm/irqflags.h104
-rw-r--r--arch/m32r/include/asm/system.h66
2 files changed, 105 insertions, 65 deletions
diff --git a/arch/m32r/include/asm/irqflags.h b/arch/m32r/include/asm/irqflags.h
new file mode 100644
index 000000000000..1f92d29982ae
--- /dev/null
+++ b/arch/m32r/include/asm/irqflags.h
@@ -0,0 +1,104 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 Hiroyuki Kondo, Hirokazu Takata, and Hitoshi Yamamoto
+ * Copyright (C) 2004, 2006 Hirokazu Takata <takata at linux-m32r.org>
+ */
+
+#ifndef _ASM_M32R_IRQFLAGS_H
+#define _ASM_M32R_IRQFLAGS_H
+
+#include <linux/types.h>
+
+static inline unsigned long arch_local_save_flags(void)
+{
+ unsigned long flags;
+ asm volatile("mvfc %0,psw" : "=r"(flags));
+ return flags;
+}
+
+static inline void arch_local_irq_disable(void)
+{
+#if !defined(CONFIG_CHIP_M32102) && !defined(CONFIG_CHIP_M32104)
+ asm volatile (
+ "clrpsw #0x40 -> nop"
+ : : : "memory");
+#else
+ unsigned long tmpreg0, tmpreg1;
+ asm volatile (
+ "ld24 %0, #0 ; Use 32-bit insn. \n\t"
+ "mvfc %1, psw ; No interrupt can be accepted here. \n\t"
+ "mvtc %0, psw \n\t"
+ "and3 %0, %1, #0xffbf \n\t"
+ "mvtc %0, psw \n\t"
+ : "=&r" (tmpreg0), "=&r" (tmpreg1)
+ :
+ : "cbit", "memory");
+#endif
+}
+
+static inline void arch_local_irq_enable(void)
+{
+#if !defined(CONFIG_CHIP_M32102) && !defined(CONFIG_CHIP_M32104)
+ asm volatile (
+ "setpsw #0x40 -> nop"
+ : : : "memory");
+#else
+ unsigned long tmpreg;
+ asm volatile (
+ "mvfc %0, psw; \n\t"
+ "or3 %0, %0, #0x0040; \n\t"
+ "mvtc %0, psw; \n\t"
+ : "=&r" (tmpreg)
+ :
+ : "cbit", "memory");
+#endif
+}
+
+static inline unsigned long arch_local_irq_save(void)
+{
+ unsigned long flags;
+
+#if !(defined(CONFIG_CHIP_M32102) || defined(CONFIG_CHIP_M32104))
+ asm volatile (
+ "mvfc %0, psw; \n\t"
+ "clrpsw #0x40 -> nop; \n\t"
+ : "=r" (flags)
+ :
+ : "memory");
+#else
+ unsigned long tmpreg;
+ asm volatile (
+ "ld24 %1, #0 \n\t"
+ "mvfc %0, psw \n\t"
+ "mvtc %1, psw \n\t"
+ "and3 %1, %0, #0xffbf \n\t"
+ "mvtc %1, psw \n\t"
+ : "=r" (flags), "=&r" (tmpreg)
+ :
+ : "cbit", "memory");
+#endif
+ return flags;
+}
+
+static inline void arch_local_irq_restore(unsigned long flags)
+{
+ asm volatile("mvtc %0,psw"
+ :
+ : "r" (flags)
+ : "cbit", "memory");
+}
+
+static inline bool arch_irqs_disabled_flags(unsigned long flags)
+{
+ return !(flags & 0x40);
+}
+
+static inline bool arch_irqs_disabled(void)
+{
+ return arch_irqs_disabled_flags(arch_local_save_flags());
+}
+
+#endif /* _ASM_M32R_IRQFLAGS_H */
diff --git a/arch/m32r/include/asm/system.h b/arch/m32r/include/asm/system.h
index c980f5ba8de7..13c46794ccb1 100644
--- a/arch/m32r/include/asm/system.h
+++ b/arch/m32r/include/asm/system.h
@@ -11,6 +11,7 @@
*/
#include <linux/compiler.h>
+#include <linux/irqflags.h>
#include <asm/assembler.h>
#ifdef __KERNEL__
@@ -54,71 +55,6 @@
); \
} while(0)
-/* Interrupt Control */
-#if !defined(CONFIG_CHIP_M32102) && !defined(CONFIG_CHIP_M32104)
-#define local_irq_enable() \
- __asm__ __volatile__ ("setpsw #0x40 -> nop": : :"memory")
-#define local_irq_disable() \
- __asm__ __volatile__ ("clrpsw #0x40 -> nop": : :"memory")
-#else /* CONFIG_CHIP_M32102 || CONFIG_CHIP_M32104 */
-static inline void local_irq_enable(void)
-{
- unsigned long tmpreg;
- __asm__ __volatile__(
- "mvfc %0, psw; \n\t"
- "or3 %0, %0, #0x0040; \n\t"
- "mvtc %0, psw; \n\t"
- : "=&r" (tmpreg) : : "cbit", "memory");
-}
-
-static inline void local_irq_disable(void)
-{
- unsigned long tmpreg0, tmpreg1;
- __asm__ __volatile__(
- "ld24 %0, #0 ; Use 32-bit insn. \n\t"
- "mvfc %1, psw ; No interrupt can be accepted here. \n\t"
- "mvtc %0, psw \n\t"
- "and3 %0, %1, #0xffbf \n\t"
- "mvtc %0, psw \n\t"
- : "=&r" (tmpreg0), "=&r" (tmpreg1) : : "cbit", "memory");
-}
-#endif /* CONFIG_CHIP_M32102 || CONFIG_CHIP_M32104 */
-
-#define local_save_flags(x) \
- __asm__ __volatile__("mvfc %0,psw" : "=r"(x) : /* no input */)
-
-#define local_irq_restore(x) \
- __asm__ __volatile__("mvtc %0,psw" : /* no outputs */ \
- : "r" (x) : "cbit", "memory")
-
-#if !(defined(CONFIG_CHIP_M32102) || defined(CONFIG_CHIP_M32104))
-#define local_irq_save(x) \
- __asm__ __volatile__( \
- "mvfc %0, psw; \n\t" \
- "clrpsw #0x40 -> nop; \n\t" \
- : "=r" (x) : /* no input */ : "memory")
-#else /* CONFIG_CHIP_M32102 || CONFIG_CHIP_M32104 */
-#define local_irq_save(x) \
- ({ \
- unsigned long tmpreg; \
- __asm__ __volatile__( \
- "ld24 %1, #0 \n\t" \
- "mvfc %0, psw \n\t" \
- "mvtc %1, psw \n\t" \
- "and3 %1, %0, #0xffbf \n\t" \
- "mvtc %1, psw \n\t" \
- : "=r" (x), "=&r" (tmpreg) \
- : : "cbit", "memory"); \
- })
-#endif /* CONFIG_CHIP_M32102 || CONFIG_CHIP_M32104 */
-
-#define irqs_disabled() \
- ({ \
- unsigned long flags; \
- local_save_flags(flags); \
- !(flags & 0x40); \
- })
-
#define nop() __asm__ __volatile__ ("nop" : : )
#define xchg(ptr, x) \