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Diffstat (limited to 'arch/blackfin/include/asm/ipipe.h')
-rw-r--r--arch/blackfin/include/asm/ipipe.h177
1 files changed, 54 insertions, 123 deletions
diff --git a/arch/blackfin/include/asm/ipipe.h b/arch/blackfin/include/asm/ipipe.h
index 76f53d8b9a0..17b5e92e3bc 100644
--- a/arch/blackfin/include/asm/ipipe.h
+++ b/arch/blackfin/include/asm/ipipe.h
@@ -32,13 +32,14 @@
#include <asm/ptrace.h>
#include <asm/irq.h>
#include <asm/bitops.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include <asm/traps.h>
+#include <asm/bitsperlong.h>
-#define IPIPE_ARCH_STRING "1.8-00"
+#define IPIPE_ARCH_STRING "1.16-01"
#define IPIPE_MAJOR_NUMBER 1
-#define IPIPE_MINOR_NUMBER 8
-#define IPIPE_PATCH_NUMBER 0
+#define IPIPE_MINOR_NUMBER 16
+#define IPIPE_PATCH_NUMBER 1
#ifdef CONFIG_SMP
#error "I-pipe/blackfin: SMP not implemented"
@@ -49,30 +50,25 @@
#define prepare_arch_switch(next) \
do { \
ipipe_schedule_notify(current, next); \
- local_irq_disable_hw(); \
+ hard_local_irq_disable(); \
} while (0)
#define task_hijacked(p) \
({ \
- int __x__ = ipipe_current_domain != ipipe_root_domain; \
- /* We would need to clear the SYNC flag for the root domain */ \
- /* over the current processor in SMP mode. */ \
- local_irq_enable_hw(); __x__; \
+ int __x__ = __ipipe_root_domain_p; \
+ if (__x__) \
+ hard_local_irq_enable(); \
+ !__x__; \
})
struct ipipe_domain;
struct ipipe_sysinfo {
-
- int ncpus; /* Number of CPUs on board */
- u64 cpufreq; /* CPU frequency (in Hz) */
-
- /* Arch-dependent block */
-
- struct {
- unsigned tmirq; /* Timer tick IRQ */
- u64 tmfreq; /* Timer frequency */
- } archdep;
+ int sys_nr_cpus; /* Number of CPUs on board */
+ int sys_hrtimer_irq; /* hrtimer device IRQ */
+ u64 sys_hrtimer_freq; /* hrtimer device frequency */
+ u64 sys_hrclock_freq; /* hrclock device frequency */
+ u64 sys_cpu_freq; /* CPU frequency (Hz) */
};
#define ipipe_read_tsc(t) \
@@ -83,9 +79,9 @@ struct ipipe_sysinfo {
"%2 = CYCLES2\n" \
"CC = %2 == %0\n" \
"if ! CC jump 1b\n" \
- : "=r" (((unsigned long *)&t)[1]), \
- "=r" (((unsigned long *)&t)[0]), \
- "=r" (__cy2) \
+ : "=d,a" (((unsigned long *)&t)[1]), \
+ "=d,a" (((unsigned long *)&t)[0]), \
+ "=d,a" (__cy2) \
: /*no input*/ : "CC"); \
t; \
})
@@ -114,39 +110,39 @@ void __ipipe_enable_irqdesc(struct ipipe_domain *ipd,
void __ipipe_disable_irqdesc(struct ipipe_domain *ipd,
unsigned irq);
-#define __ipipe_enable_irq(irq) (irq_desc[irq].chip->unmask(irq))
-
-#define __ipipe_disable_irq(irq) (irq_desc[irq].chip->mask(irq))
+#define __ipipe_enable_irq(irq) \
+ do { \
+ struct irq_desc *desc = irq_to_desc(irq); \
+ struct irq_chip *chip = get_irq_desc_chip(desc); \
+ chip->irq_unmask(&desc->irq_data); \
+ } while (0)
-#define __ipipe_lock_root() \
- set_bit(IPIPE_ROOTLOCK_FLAG, &ipipe_root_domain->flags)
+#define __ipipe_disable_irq(irq) \
+ do { \
+ struct irq_desc *desc = irq_to_desc(irq); \
+ struct irq_chip *chip = get_irq_desc_chip(desc); \
+ chip->irq_mask(&desc->irq_data); \
+ } while (0)
-#define __ipipe_unlock_root() \
- clear_bit(IPIPE_ROOTLOCK_FLAG, &ipipe_root_domain->flags)
+static inline int __ipipe_check_tickdev(const char *devname)
+{
+ return 1;
+}
void __ipipe_enable_pipeline(void);
#define __ipipe_hook_critical_ipi(ipd) do { } while (0)
-#define __ipipe_sync_pipeline(syncmask) \
- do { \
- struct ipipe_domain *ipd = ipipe_current_domain; \
- if (likely(ipd != ipipe_root_domain || !test_bit(IPIPE_ROOTLOCK_FLAG, &ipd->flags))) \
- __ipipe_sync_stage(syncmask); \
- } while (0)
+void ___ipipe_sync_pipeline(void);
void __ipipe_handle_irq(unsigned irq, struct pt_regs *regs);
-int __ipipe_get_irq_priority(unsigned irq);
-
-int __ipipe_get_irqthread_priority(unsigned irq);
-
-void __ipipe_stall_root_raw(void);
-
-void __ipipe_unstall_root_raw(void);
+int __ipipe_get_irq_priority(unsigned int irq);
void __ipipe_serial_debug(const char *fmt, ...);
+asmlinkage void __ipipe_call_irqtail(unsigned long addr);
+
DECLARE_PER_CPU(struct pt_regs, __ipipe_tick_regs);
extern unsigned long __ipipe_core_clock;
@@ -160,99 +156,34 @@ static inline unsigned long __ipipe_ffnz(unsigned long ul)
return ffs(ul) - 1;
}
-#define __ipipe_run_irqtail() /* Must be a macro */ \
+#define __ipipe_do_root_xirq(ipd, irq) \
+ ((ipd)->irqs[irq].handler(irq, &__raw_get_cpu_var(__ipipe_tick_regs)))
+
+#define __ipipe_run_irqtail(irq) /* Must be a macro */ \
do { \
- asmlinkage void __ipipe_call_irqtail(void); \
unsigned long __pending; \
- CSYNC(); \
+ CSYNC(); \
__pending = bfin_read_IPEND(); \
if (__pending & 0x8000) { \
__pending &= ~0x8010; \
if (__pending && (__pending & (__pending - 1)) == 0) \
- __ipipe_call_irqtail(); \
- } \
- } while (0)
-
-#define __ipipe_run_isr(ipd, irq) \
- do { \
- if (ipd == ipipe_root_domain) { \
- /* \
- * Note: the I-pipe implements a threaded interrupt model on \
- * this arch for Linux external IRQs. The interrupt handler we \
- * call here only wakes up the associated IRQ thread. \
- */ \
- if (ipipe_virtual_irq_p(irq)) { \
- /* No irqtail here; virtual interrupts have no effect \
- on IPEND so there is no need for processing \
- deferral. */ \
- local_irq_enable_nohead(ipd); \
- ipd->irqs[irq].handler(irq, ipd->irqs[irq].cookie); \
- local_irq_disable_nohead(ipd); \
- } else \
- /* \
- * No need to run the irqtail here either; \
- * we can't be preempted by hw IRQs, so \
- * non-Linux IRQs cannot stack over the short \
- * thread wakeup code. Which in turn means \
- * that no irqtail condition could be pending \
- * for domains above Linux in the pipeline. \
- */ \
- ipd->irqs[irq].handler(irq, &__raw_get_cpu_var(__ipipe_tick_regs)); \
- } else { \
- __clear_bit(IPIPE_SYNC_FLAG, &ipipe_cpudom_var(ipd, status)); \
- local_irq_enable_nohead(ipd); \
- ipd->irqs[irq].handler(irq, ipd->irqs[irq].cookie); \
- /* Attempt to exit the outer interrupt level before \
- * starting the deferred IRQ processing. */ \
- local_irq_disable_nohead(ipd); \
- __ipipe_run_irqtail(); \
- __set_bit(IPIPE_SYNC_FLAG, &ipipe_cpudom_var(ipd, status)); \
+ __ipipe_call_irqtail(__ipipe_irq_tail_hook); \
} \
} while (0)
#define __ipipe_syscall_watched_p(p, sc) \
- (((p)->flags & PF_EVNOTIFY) || (unsigned long)sc >= NR_syscalls)
-
-void ipipe_init_irq_threads(void);
-
-int ipipe_start_irq_thread(unsigned irq, struct irq_desc *desc);
-
-#define IS_SYSIRQ(irq) ((irq) > IRQ_CORETMR && (irq) <= SYS_IRQS)
-#define IS_GPIOIRQ(irq) ((irq) >= GPIO_IRQ_BASE && (irq) < NR_IRQS)
+ (ipipe_notifier_enabled_p(p) || (unsigned long)sc >= NR_syscalls)
-#define IRQ_SYSTMR IRQ_TIMER0
-#define IRQ_PRIOTMR CONFIG_IRQ_TIMER0
-
-#if defined(CONFIG_BF531) || defined(CONFIG_BF532) || defined(CONFIG_BF533)
-#define PRIO_GPIODEMUX(irq) CONFIG_PFA
-#elif defined(CONFIG_BF534) || defined(CONFIG_BF536) || defined(CONFIG_BF537)
-#define PRIO_GPIODEMUX(irq) CONFIG_IRQ_PROG_INTA
-#elif defined(CONFIG_BF52x)
-#define PRIO_GPIODEMUX(irq) ((irq) == IRQ_PORTF_INTA ? CONFIG_IRQ_PORTF_INTA : \
- (irq) == IRQ_PORTG_INTA ? CONFIG_IRQ_PORTG_INTA : \
- (irq) == IRQ_PORTH_INTA ? CONFIG_IRQ_PORTH_INTA : \
- -1)
-#elif defined(CONFIG_BF561)
-#define PRIO_GPIODEMUX(irq) ((irq) == IRQ_PROG0_INTA ? CONFIG_IRQ_PROG0_INTA : \
- (irq) == IRQ_PROG1_INTA ? CONFIG_IRQ_PROG1_INTA : \
- (irq) == IRQ_PROG2_INTA ? CONFIG_IRQ_PROG2_INTA : \
- -1)
+#ifdef CONFIG_BF561
#define bfin_write_TIMER_DISABLE(val) bfin_write_TMRS8_DISABLE(val)
#define bfin_write_TIMER_ENABLE(val) bfin_write_TMRS8_ENABLE(val)
#define bfin_write_TIMER_STATUS(val) bfin_write_TMRS8_STATUS(val)
#define bfin_read_TIMER_STATUS() bfin_read_TMRS8_STATUS()
#elif defined(CONFIG_BF54x)
-#define PRIO_GPIODEMUX(irq) ((irq) == IRQ_PINT0 ? CONFIG_IRQ_PINT0 : \
- (irq) == IRQ_PINT1 ? CONFIG_IRQ_PINT1 : \
- (irq) == IRQ_PINT2 ? CONFIG_IRQ_PINT2 : \
- (irq) == IRQ_PINT3 ? CONFIG_IRQ_PINT3 : \
- -1)
#define bfin_write_TIMER_DISABLE(val) bfin_write_TIMER_DISABLE0(val)
#define bfin_write_TIMER_ENABLE(val) bfin_write_TIMER_ENABLE0(val)
#define bfin_write_TIMER_STATUS(val) bfin_write_TIMER_STATUS0(val)
#define bfin_read_TIMER_STATUS(val) bfin_read_TIMER_STATUS0(val)
-#else
-# error "no PRIO_GPIODEMUX() for this part"
#endif
#define __ipipe_root_tick_p(regs) ((regs->ipend & 0x10) != 0)
@@ -261,18 +192,18 @@ int ipipe_start_irq_thread(unsigned irq, struct irq_desc *desc);
#define task_hijacked(p) 0
#define ipipe_trap_notify(t, r) 0
+#define __ipipe_root_tick_p(regs) 1
-#define __ipipe_stall_root_raw() do { } while (0)
-#define __ipipe_unstall_root_raw() do { } while (0)
-
-#define ipipe_init_irq_threads() do { } while (0)
-#define ipipe_start_irq_thread(irq, desc) 0
+#endif /* !CONFIG_IPIPE */
+#ifdef CONFIG_TICKSOURCE_CORETMR
#define IRQ_SYSTMR IRQ_CORETMR
#define IRQ_PRIOTMR IRQ_CORETMR
+#else
+#define IRQ_SYSTMR IRQ_TIMER0
+#define IRQ_PRIOTMR CONFIG_IRQ_TIMER0
+#endif
-#define __ipipe_root_tick_p(regs) 1
-
-#endif /* !CONFIG_IPIPE */
+#define ipipe_update_tick_evtdev(evtdev) do { } while (0)
#endif /* !__ASM_BLACKFIN_IPIPE_H */
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-18 14:08:00 +0000