Blackfin arch: merge adeos blackfin part to arch/blackfin/
[Mike Frysinger <vapier.adi@gmail.com>:
- handle bf531/bf532/bf534/bf536 variants in ipipe.h
- cleanup IPIPE logic for bfin_set_irq_handler()
- cleanup ipipe asm code a bit and add missing ENDPROC()
- simplify IPIPE code in trap_c
- unify some of the IPIPE code and fix style
- simplify DO_IRQ_L1 handling with ipipe code
- revert IRQ_SW_INT# addition from ipipe merge
- remove duplicate get_{c,s}clk() prototypes
]
Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
diff --git a/arch/blackfin/include/asm/irq.h b/arch/blackfin/include/asm/irq.h
index 21e25f7..3d97790 100644
--- a/arch/blackfin/include/asm/irq.h
+++ b/arch/blackfin/include/asm/irq.h
@@ -22,11 +22,176 @@
#include <asm/pda.h>
#include <asm/processor.h>
-static __inline__ int irq_canonicalize(int irq)
+#ifdef CONFIG_SMP
+/* Forward decl needed due to cdef inter dependencies */
+static inline uint32_t __pure bfin_dspid(void);
+# define blackfin_core_id() (bfin_dspid() & 0xff)
+# define bfin_irq_flags cpu_pda[blackfin_core_id()].imask
+#else
+extern unsigned long bfin_irq_flags;
+#endif
+
+#ifdef CONFIG_IPIPE
+
+#include <linux/ipipe_trace.h>
+
+void __ipipe_unstall_root(void);
+
+void __ipipe_restore_root(unsigned long flags);
+
+#ifdef CONFIG_DEBUG_HWERR
+# define __all_masked_irq_flags 0x3f
+# define __save_and_cli_hw(x) \
+ __asm__ __volatile__( \
+ "cli %0;" \
+ "sti %1;" \
+ : "=&d"(x) \
+ : "d" (0x3F) \
+ )
+#else
+# define __all_masked_irq_flags 0x1f
+# define __save_and_cli_hw(x) \
+ __asm__ __volatile__( \
+ "cli %0;" \
+ : "=&d"(x) \
+ )
+#endif
+
+#define irqs_enabled_from_flags_hw(x) ((x) != __all_masked_irq_flags)
+#define raw_irqs_disabled_flags(flags) (!irqs_enabled_from_flags_hw(flags))
+#define local_test_iflag_hw(x) irqs_enabled_from_flags_hw(x)
+
+#define local_save_flags(x) \
+ do { \
+ (x) = __ipipe_test_root() ? \
+ __all_masked_irq_flags : bfin_irq_flags; \
+ } while (0)
+
+#define local_irq_save(x) \
+ do { \
+ (x) = __ipipe_test_and_stall_root(); \
+ } while (0)
+
+#define local_irq_restore(x) __ipipe_restore_root(x)
+#define local_irq_disable() __ipipe_stall_root()
+#define local_irq_enable() __ipipe_unstall_root()
+#define irqs_disabled() __ipipe_test_root()
+
+#define local_save_flags_hw(x) \
+ __asm__ __volatile__( \
+ "cli %0;" \
+ "sti %0;" \
+ : "=d"(x) \
+ )
+
+#define irqs_disabled_hw() \
+ ({ \
+ unsigned long flags; \
+ local_save_flags_hw(flags); \
+ !irqs_enabled_from_flags_hw(flags); \
+ })
+
+static inline unsigned long raw_mangle_irq_bits(int virt, unsigned long real)
{
- return irq;
+ /* Merge virtual and real interrupt mask bits into a single
+ 32bit word. */
+ return (real & ~(1 << 31)) | ((virt != 0) << 31);
}
+static inline int raw_demangle_irq_bits(unsigned long *x)
+{
+ int virt = (*x & (1 << 31)) != 0;
+ *x &= ~(1L << 31);
+ return virt;
+}
+
+#ifdef CONFIG_IPIPE_TRACE_IRQSOFF
+
+#define local_irq_disable_hw() \
+ do { \
+ int _tmp_dummy; \
+ if (!irqs_disabled_hw()) \
+ ipipe_trace_begin(0x80000000); \
+ __asm__ __volatile__ ("cli %0;" : "=d" (_tmp_dummy) : ); \
+ } while (0)
+
+#define local_irq_enable_hw() \
+ do { \
+ if (irqs_disabled_hw()) \
+ ipipe_trace_end(0x80000000); \
+ __asm__ __volatile__ ("sti %0;" : : "d"(bfin_irq_flags)); \
+ } while (0)
+
+#define local_irq_save_hw(x) \
+ do { \
+ __save_and_cli_hw(x); \
+ if (local_test_iflag_hw(x)) \
+ ipipe_trace_begin(0x80000001); \
+ } while (0)
+
+#define local_irq_restore_hw(x) \
+ do { \
+ if (local_test_iflag_hw(x)) { \
+ ipipe_trace_end(0x80000001); \
+ local_irq_enable_hw_notrace(); \
+ } \
+ } while (0)
+
+#define local_irq_disable_hw_notrace() \
+ do { \
+ int _tmp_dummy; \
+ __asm__ __volatile__ ("cli %0;" : "=d" (_tmp_dummy) : ); \
+ } while (0)
+
+#define local_irq_enable_hw_notrace() \
+ __asm__ __volatile__( \
+ "sti %0;" \
+ : \
+ : "d"(bfin_irq_flags) \
+ )
+
+#define local_irq_save_hw_notrace(x) __save_and_cli_hw(x)
+
+#define local_irq_restore_hw_notrace(x) \
+ do { \
+ if (local_test_iflag_hw(x)) \
+ local_irq_enable_hw_notrace(); \
+ } while (0)
+
+#else /* CONFIG_IPIPE_TRACE_IRQSOFF */
+
+#define local_irq_enable_hw() \
+ __asm__ __volatile__( \
+ "sti %0;" \
+ : \
+ : "d"(bfin_irq_flags) \
+ )
+
+#define local_irq_disable_hw() \
+ do { \
+ int _tmp_dummy; \
+ __asm__ __volatile__ ( \
+ "cli %0;" \
+ : "=d" (_tmp_dummy)); \
+ } while (0)
+
+#define local_irq_restore_hw(x) \
+ do { \
+ if (irqs_enabled_from_flags_hw(x)) \
+ local_irq_enable_hw(); \
+ } while (0)
+
+#define local_irq_save_hw(x) __save_and_cli_hw(x)
+
+#define local_irq_disable_hw_notrace() local_irq_disable_hw()
+#define local_irq_enable_hw_notrace() local_irq_enable_hw()
+#define local_irq_save_hw_notrace(x) local_irq_save_hw(x)
+#define local_irq_restore_hw_notrace(x) local_irq_restore_hw(x)
+
+#endif /* CONFIG_IPIPE_TRACE_IRQSOFF */
+
+#else /* !CONFIG_IPIPE */
+
/*
* Interrupt configuring macros.
*/
@@ -39,21 +204,6 @@
); \
} while (0)
-#if ANOMALY_05000244 && defined(CONFIG_BFIN_ICACHE)
-# define NOP_PAD_ANOMALY_05000244 "nop; nop;"
-#else
-# define NOP_PAD_ANOMALY_05000244
-#endif
-
-#ifdef CONFIG_SMP
-/* Forward decl needed due to cdef inter dependencies */
-static inline uint32_t __pure bfin_dspid(void);
-# define blackfin_core_id() (bfin_dspid() & 0xff)
-# define bfin_irq_flags cpu_pda[blackfin_core_id()].imask
-#else
-extern unsigned long bfin_irq_flags;
-#endif
-
#define local_irq_enable() \
__asm__ __volatile__( \
"sti %0;" \
@@ -61,16 +211,6 @@
: "d" (bfin_irq_flags) \
)
-#define idle_with_irq_disabled() \
- __asm__ __volatile__( \
- NOP_PAD_ANOMALY_05000244 \
- ".align 8;" \
- "sti %0;" \
- "idle;" \
- : \
- : "d" (bfin_irq_flags) \
- )
-
#ifdef CONFIG_DEBUG_HWERR
# define __save_and_cli(x) \
__asm__ __volatile__( \
@@ -116,4 +256,33 @@
!irqs_enabled_from_flags(flags); \
})
+#define local_irq_save_hw(x) local_irq_save(x)
+#define local_irq_restore_hw(x) local_irq_restore(x)
+#define local_irq_enable_hw() local_irq_enable()
+#define local_irq_disable_hw() local_irq_disable()
+#define irqs_disabled_hw() irqs_disabled()
+
+#endif /* !CONFIG_IPIPE */
+
+#if ANOMALY_05000244 && defined(CONFIG_BFIN_ICACHE)
+# define NOP_PAD_ANOMALY_05000244 "nop; nop;"
+#else
+# define NOP_PAD_ANOMALY_05000244
+#endif
+
+#define idle_with_irq_disabled() \
+ __asm__ __volatile__( \
+ NOP_PAD_ANOMALY_05000244 \
+ ".align 8;" \
+ "sti %0;" \
+ "idle;" \
+ : \
+ : "d" (bfin_irq_flags) \
+ )
+
+static inline int irq_canonicalize(int irq)
+{
+ return irq;
+}
+
#endif /* _BFIN_IRQ_H_ */