1 files changed, 132 insertions, 0 deletions
diff --git a/include/asm-arm/irqflags.h b/include/asm-arm/irqflags.h
new file mode 100644
index 000000000000..6d09974e6646
--- /dev/null
+++ b/include/asm-arm/irqflags.h
@@ -0,0 +1,132 @@
+#ifndef __ASM_ARM_IRQFLAGS_H
+#define __ASM_ARM_IRQFLAGS_H
+#ifdef __KERNEL__
+#include <asm/ptrace.h>
+/*
+ * CPU interrupt mask handling.
+ */
+#if __LINUX_ARM_ARCH__ >= 6
+#define raw_local_irq_save(x)                                   \
+        ({                                                      \
+        __asm__ __volatile__(                                   \
+        "mrs    %0, cpsr                @ local_irq_save\n"     \
+        "cpsid  i"                                              \
+        : "=r" (x) : : "memory", "cc");                         \
+        })
+#define raw_local_irq_enable()  __asm__("cpsie i        @ __sti" : : : "memory", "cc")
+#define raw_local_irq_disable() __asm__("cpsid i        @ __cli" : : : "memory", "cc")
+#define local_fiq_enable()  __asm__("cpsie f    @ __stf" : : : "memory", "cc")
+#define local_fiq_disable() __asm__("cpsid f    @ __clf" : : : "memory", "cc")
+#else
+/*
+ * Save the current interrupt enable state & disable IRQs
+ */
+#define raw_local_irq_save(x)                                   \
+        ({                                                      \
+                unsigned long temp;                             \
+                (void) (&temp == &x);                           \
+        __asm__ __volatile__(                                   \
+        "mrs    %0, cpsr                @ local_irq_save\n"     \
+"       orr     %1, %0, #128\n"                                 \
+"       msr     cpsr_c, %1"                                     \
+        : "=r" (x), "=r" (temp)                                 \
+        :                                                       \
+        : "memory", "cc");                                      \
+        })
+        
+/*
+ * Enable IRQs
+ */
+#define raw_local_irq_enable()                                  \
+        ({                                                      \
+                unsigned long temp;                             \
+        __asm__ __volatile__(                                   \
+        "mrs    %0, cpsr                @ local_irq_enable\n"   \
+"       bic     %0, %0, #128\n"                                 \
+"       msr     cpsr_c, %0"                                     \
+        : "=r" (temp)                                           \
+        :                                                       \
+        : "memory", "cc");                                      \
+        })
+/*
+ * Disable IRQs
+ */
+#define raw_local_irq_disable()                                 \
+        ({                                                      \
+                unsigned long temp;                             \
+        __asm__ __volatile__(                                   \
+        "mrs    %0, cpsr                @ local_irq_disable\n"  \
+"       orr     %0, %0, #128\n"                                 \
+"       msr     cpsr_c, %0"                                     \
+        : "=r" (temp)                                           \
+        :                                                       \
+        : "memory", "cc");                                      \
+        })
+/*
+ * Enable FIQs
+ */
+#define local_fiq_enable()                                      \
+        ({                                                      \
+                unsigned long temp;                             \
+        __asm__ __volatile__(                                   \
+        "mrs    %0, cpsr                @ stf\n"                \
+"       bic     %0, %0, #64\n"                                  \
+"       msr     cpsr_c, %0"                                     \
+        : "=r" (temp)                                           \
+        :                                                       \
+        : "memory", "cc");                                      \
+        })
+/*
+ * Disable FIQs
+ */
+#define local_fiq_disable()                                     \
+        ({                                                      \
+                unsigned long temp;                             \
+        __asm__ __volatile__(                                   \
+        "mrs    %0, cpsr                @ clf\n"                \
+"       orr     %0, %0, #64\n"                                  \
+"       msr     cpsr_c, %0"                                     \
+        : "=r" (temp)                                           \
+        :                                                       \
+        : "memory", "cc");                                      \
+        })
+#endif
+/*
+ * Save the current interrupt enable state.
+ */
+#define raw_local_save_flags(x)                                 \
+        ({                                                      \
+        __asm__ __volatile__(                                   \
+        "mrs    %0, cpsr                @ local_save_flags"     \
+        : "=r" (x) : : "memory", "cc");                         \
+        })
+/*
+ * restore saved IRQ & FIQ state
+ */
+#define raw_local_irq_restore(x)                                \
+        __asm__ __volatile__(                                   \
+        "msr    cpsr_c, %0              @ local_irq_restore\n"  \
+        :                                                       \
+        : "r" (x)                                               \
+        : "memory", "cc")
+#define raw_irqs_disabled_flags(flags)  \
+({                                      \
+        (int)((flags) & PSR_I_BIT);     \
+})
+#endif
+#endif

diff --git a/include/asm-arm/irqflags.h b/include/asm-arm/irqflags.h new file mode 100644 index 000000000000..6d09974e6646 --- /dev/null +++ b/include/asm-arm/irqflags.h
@@ -0,0 +1,132 @@
	1	#ifndef __ASM_ARM_IRQFLAGS_H
	2	#define __ASM_ARM_IRQFLAGS_H
	3
	4	#ifdef __KERNEL__
	5
	6	#include <asm/ptrace.h>
	7
	8	/*
	9	* CPU interrupt mask handling.
	10	*/
	11	#if __LINUX_ARM_ARCH__ >= 6
	12
	13	#define raw_local_irq_save(x) \
	14	({ \
	15	__asm__ __volatile__( \
	16	"mrs %0, cpsr @ local_irq_save\n" \
	17	"cpsid i" \
	18	: "=r" (x) : : "memory", "cc"); \
	19	})
	20
	21	#define raw_local_irq_enable() __asm__("cpsie i @ __sti" : : : "memory", "cc")
	22	#define raw_local_irq_disable() __asm__("cpsid i @ __cli" : : : "memory", "cc")
	23	#define local_fiq_enable() __asm__("cpsie f @ __stf" : : : "memory", "cc")
	24	#define local_fiq_disable() __asm__("cpsid f @ __clf" : : : "memory", "cc")
	25
	26	#else
	27
	28	/*
	29	* Save the current interrupt enable state & disable IRQs
	30	*/
	31	#define raw_local_irq_save(x) \
	32	({ \
	33	unsigned long temp; \
	34	(void) (&temp == &x); \
	35	__asm__ __volatile__( \
	36	"mrs %0, cpsr @ local_irq_save\n" \
	37	" orr %1, %0, #128\n" \
	38	" msr cpsr_c, %1" \
	39	: "=r" (x), "=r" (temp) \
	40	: \
	41	: "memory", "cc"); \
	42	})
	43
	44	/*
	45	* Enable IRQs
	46	*/
	47	#define raw_local_irq_enable() \
	48	({ \
	49	unsigned long temp; \
	50	__asm__ __volatile__( \
	51	"mrs %0, cpsr @ local_irq_enable\n" \
	52	" bic %0, %0, #128\n" \
	53	" msr cpsr_c, %0" \
	54	: "=r" (temp) \
	55	: \
	56	: "memory", "cc"); \
	57	})
	58
	59	/*
	60	* Disable IRQs
	61	*/
	62	#define raw_local_irq_disable() \
	63	({ \
	64	unsigned long temp; \
	65	__asm__ __volatile__( \
	66	"mrs %0, cpsr @ local_irq_disable\n" \
	67	" orr %0, %0, #128\n" \
	68	" msr cpsr_c, %0" \
	69	: "=r" (temp) \
	70	: \
	71	: "memory", "cc"); \
	72	})
	73
	74	/*
	75	* Enable FIQs
	76	*/
	77	#define local_fiq_enable() \
	78	({ \
	79	unsigned long temp; \
	80	__asm__ __volatile__( \
	81	"mrs %0, cpsr @ stf\n" \
	82	" bic %0, %0, #64\n" \
	83	" msr cpsr_c, %0" \
	84	: "=r" (temp) \
	85	: \
	86	: "memory", "cc"); \
	87	})
	88
	89	/*
	90	* Disable FIQs
	91	*/
	92	#define local_fiq_disable() \
	93	({ \
	94	unsigned long temp; \
	95	__asm__ __volatile__( \
	96	"mrs %0, cpsr @ clf\n" \
	97	" orr %0, %0, #64\n" \
	98	" msr cpsr_c, %0" \
	99	: "=r" (temp) \
	100	: \
	101	: "memory", "cc"); \
	102	})
	103
	104	#endif
	105
	106	/*
	107	* Save the current interrupt enable state.
	108	*/
	109	#define raw_local_save_flags(x) \
	110	({ \
	111	__asm__ __volatile__( \
	112	"mrs %0, cpsr @ local_save_flags" \
	113	: "=r" (x) : : "memory", "cc"); \
	114	})
	115
	116	/*
	117	* restore saved IRQ & FIQ state
	118	*/
	119	#define raw_local_irq_restore(x) \
	120	__asm__ __volatile__( \
	121	"msr cpsr_c, %0 @ local_irq_restore\n" \
	122	: \
	123	: "r" (x) \
	124	: "memory", "cc")
	125
	126	#define raw_irqs_disabled_flags(flags) \
	127	({ \
	128	(int)((flags) & PSR_I_BIT); \
	129	})
	130
	131	#endif
	132	#endif