summaryrefslogtreecommitdiffstats
path: root/arch/blackfin/include/asm/irqflags.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/blackfin/include/asm/irqflags.h')
-rw-r--r--arch/blackfin/include/asm/irqflags.h289
1 files changed, 0 insertions, 289 deletions
diff --git a/arch/blackfin/include/asm/irqflags.h b/arch/blackfin/include/asm/irqflags.h
deleted file mode 100644
index 07aff230a812..000000000000
--- a/arch/blackfin/include/asm/irqflags.h
+++ /dev/null
@@ -1,289 +0,0 @@
-/*
- * interface to Blackfin CEC
- *
- * Copyright 2009 Analog Devices Inc.
- * Licensed under the GPL-2 or later.
- */
-
-#ifndef __ASM_BFIN_IRQFLAGS_H__
-#define __ASM_BFIN_IRQFLAGS_H__
-
-#include <mach/blackfin.h>
-
-#ifdef CONFIG_SMP
-# include <asm/pda.h>
-# include <asm/processor.h>
-# define bfin_irq_flags cpu_pda[blackfin_core_id()].imask
-#else
-extern unsigned long bfin_irq_flags;
-#endif
-
-static inline notrace void bfin_sti(unsigned long flags)
-{
- asm volatile("sti %0;" : : "d" (flags));
-}
-
-static inline notrace unsigned long bfin_cli(void)
-{
- unsigned long flags;
- asm volatile("cli %0;" : "=d" (flags));
- return flags;
-}
-
-#ifdef CONFIG_DEBUG_HWERR
-# define bfin_no_irqs 0x3f
-#else
-# define bfin_no_irqs 0x1f
-#endif
-
-/*****************************************************************************/
-/*
- * Hard, untraced CPU interrupt flag manipulation and access.
- */
-static inline notrace void __hard_local_irq_disable(void)
-{
- bfin_cli();
-}
-
-static inline notrace void __hard_local_irq_enable(void)
-{
- bfin_sti(bfin_irq_flags);
-}
-
-static inline notrace unsigned long hard_local_save_flags(void)
-{
- return bfin_read_IMASK();
-}
-
-static inline notrace unsigned long __hard_local_irq_save(void)
-{
- unsigned long flags;
- flags = bfin_cli();
-#ifdef CONFIG_DEBUG_HWERR
- bfin_sti(0x3f);
-#endif
- return flags;
-}
-
-static inline notrace int hard_irqs_disabled_flags(unsigned long flags)
-{
-#ifdef CONFIG_BF60x
- return (flags & IMASK_IVG11) == 0;
-#else
- return (flags & ~0x3f) == 0;
-#endif
-}
-
-static inline notrace int hard_irqs_disabled(void)
-{
- unsigned long flags = hard_local_save_flags();
- return hard_irqs_disabled_flags(flags);
-}
-
-static inline notrace void __hard_local_irq_restore(unsigned long flags)
-{
- if (!hard_irqs_disabled_flags(flags))
- __hard_local_irq_enable();
-}
-
-/*****************************************************************************/
-/*
- * Interrupt pipe handling.
- */
-#ifdef CONFIG_IPIPE
-
-#include <linux/compiler.h>
-#include <linux/ipipe_trace.h>
-/*
- * Way too many inter-deps between low-level headers in this port, so
- * we redeclare the required bits we cannot pick from
- * <asm/ipipe_base.h> to prevent circular dependencies.
- */
-void __ipipe_stall_root(void);
-void __ipipe_unstall_root(void);
-unsigned long __ipipe_test_root(void);
-unsigned long __ipipe_test_and_stall_root(void);
-void __ipipe_restore_root(unsigned long flags);
-
-#ifdef CONFIG_IPIPE_DEBUG_CONTEXT
-struct ipipe_domain;
-extern struct ipipe_domain ipipe_root;
-void ipipe_check_context(struct ipipe_domain *ipd);
-#define __check_irqop_context(ipd) ipipe_check_context(&ipipe_root)
-#else /* !CONFIG_IPIPE_DEBUG_CONTEXT */
-#define __check_irqop_context(ipd) do { } while (0)
-#endif /* !CONFIG_IPIPE_DEBUG_CONTEXT */
-
-/*
- * Interrupt pipe interface to linux/irqflags.h.
- */
-static inline notrace void arch_local_irq_disable(void)
-{
- __check_irqop_context();
- __ipipe_stall_root();
- barrier();
-}
-
-static inline notrace void arch_local_irq_enable(void)
-{
- barrier();
- __check_irqop_context();
- __ipipe_unstall_root();
-}
-
-static inline notrace unsigned long arch_local_save_flags(void)
-{
- return __ipipe_test_root() ? bfin_no_irqs : bfin_irq_flags;
-}
-
-static inline notrace int arch_irqs_disabled_flags(unsigned long flags)
-{
- return flags == bfin_no_irqs;
-}
-
-static inline notrace unsigned long arch_local_irq_save(void)
-{
- unsigned long flags;
-
- __check_irqop_context();
- flags = __ipipe_test_and_stall_root() ? bfin_no_irqs : bfin_irq_flags;
- barrier();
-
- return flags;
-}
-
-static inline notrace void arch_local_irq_restore(unsigned long flags)
-{
- __check_irqop_context();
- __ipipe_restore_root(flags == bfin_no_irqs);
-}
-
-static inline notrace unsigned long arch_mangle_irq_bits(int virt, unsigned long real)
-{
- /*
- * Merge virtual and real interrupt mask bits into a single
- * 32bit word.
- */
- return (real & ~(1 << 31)) | ((virt != 0) << 31);
-}
-
-static inline notrace int arch_demangle_irq_bits(unsigned long *x)
-{
- int virt = (*x & (1 << 31)) != 0;
- *x &= ~(1L << 31);
- return virt;
-}
-
-/*
- * Interface to various arch routines that may be traced.
- */
-#ifdef CONFIG_IPIPE_TRACE_IRQSOFF
-static inline notrace void hard_local_irq_disable(void)
-{
- if (!hard_irqs_disabled()) {
- __hard_local_irq_disable();
- ipipe_trace_begin(0x80000000);
- }
-}
-
-static inline notrace void hard_local_irq_enable(void)
-{
- if (hard_irqs_disabled()) {
- ipipe_trace_end(0x80000000);
- __hard_local_irq_enable();
- }
-}
-
-static inline notrace unsigned long hard_local_irq_save(void)
-{
- unsigned long flags = hard_local_save_flags();
- if (!hard_irqs_disabled_flags(flags)) {
- __hard_local_irq_disable();
- ipipe_trace_begin(0x80000001);
- }
- return flags;
-}
-
-static inline notrace void hard_local_irq_restore(unsigned long flags)
-{
- if (!hard_irqs_disabled_flags(flags)) {
- ipipe_trace_end(0x80000001);
- __hard_local_irq_enable();
- }
-}
-
-#else /* !CONFIG_IPIPE_TRACE_IRQSOFF */
-# define hard_local_irq_disable() __hard_local_irq_disable()
-# define hard_local_irq_enable() __hard_local_irq_enable()
-# define hard_local_irq_save() __hard_local_irq_save()
-# define hard_local_irq_restore(flags) __hard_local_irq_restore(flags)
-#endif /* !CONFIG_IPIPE_TRACE_IRQSOFF */
-
-#define hard_local_irq_save_cond() hard_local_irq_save()
-#define hard_local_irq_restore_cond(flags) hard_local_irq_restore(flags)
-
-#else /* !CONFIG_IPIPE */
-
-/*
- * Direct interface to linux/irqflags.h.
- */
-#define arch_local_save_flags() hard_local_save_flags()
-#define arch_local_irq_save() __hard_local_irq_save()
-#define arch_local_irq_restore(flags) __hard_local_irq_restore(flags)
-#define arch_local_irq_enable() __hard_local_irq_enable()
-#define arch_local_irq_disable() __hard_local_irq_disable()
-#define arch_irqs_disabled_flags(flags) hard_irqs_disabled_flags(flags)
-#define arch_irqs_disabled() hard_irqs_disabled()
-
-/*
- * Interface to various arch routines that may be traced.
- */
-#define hard_local_irq_save() __hard_local_irq_save()
-#define hard_local_irq_restore(flags) __hard_local_irq_restore(flags)
-#define hard_local_irq_enable() __hard_local_irq_enable()
-#define hard_local_irq_disable() __hard_local_irq_disable()
-#define hard_local_irq_save_cond() hard_local_save_flags()
-#define hard_local_irq_restore_cond(flags) do { (void)(flags); } while (0)
-
-#endif /* !CONFIG_IPIPE */
-
-#ifdef CONFIG_SMP
-#define hard_local_irq_save_smp() hard_local_irq_save()
-#define hard_local_irq_restore_smp(flags) hard_local_irq_restore(flags)
-#else
-#define hard_local_irq_save_smp() hard_local_save_flags()
-#define hard_local_irq_restore_smp(flags) do { (void)(flags); } while (0)
-#endif
-
-/*
- * Remap the arch-neutral IRQ state manipulation macros to the
- * blackfin-specific hard_local_irq_* API.
- */
-#define local_irq_save_hw(flags) \
- do { \
- (flags) = hard_local_irq_save(); \
- } while (0)
-#define local_irq_restore_hw(flags) \
- do { \
- hard_local_irq_restore(flags); \
- } while (0)
-#define local_irq_disable_hw() \
- do { \
- hard_local_irq_disable(); \
- } while (0)
-#define local_irq_enable_hw() \
- do { \
- hard_local_irq_enable(); \
- } while (0)
-#define local_irq_save_hw_notrace(flags) \
- do { \
- (flags) = __hard_local_irq_save(); \
- } while (0)
-#define local_irq_restore_hw_notrace(flags) \
- do { \
- __hard_local_irq_restore(flags); \
- } while (0)
-
-#define irqs_disabled_hw() hard_irqs_disabled()
-
-#endif
OpenPOWER on IntegriCloud