+++ /dev/null
-/* -*- linux-c -*-
- * include/asm-blackfin/ipipe.h
- *
- * Copyright (C) 2002-2007 Philippe Gerum.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, Inc., 675 Mass Ave, Cambridge MA 02139,
- * USA; either version 2 of the License, or (at your option) any later
- * version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-#ifndef __ASM_BLACKFIN_IPIPE_H
-#define __ASM_BLACKFIN_IPIPE_H
-
-#ifdef CONFIG_IPIPE
-
-#include <linux/cpumask.h>
-#include <linux/list.h>
-#include <linux/threads.h>
-#include <linux/irq.h>
-#include <linux/ipipe_percpu.h>
-#include <asm/ptrace.h>
-#include <asm/irq.h>
-#include <asm/bitops.h>
-#include <linux/atomic.h>
-#include <asm/traps.h>
-#include <asm/bitsperlong.h>
-
-#define IPIPE_ARCH_STRING "1.16-01"
-#define IPIPE_MAJOR_NUMBER 1
-#define IPIPE_MINOR_NUMBER 16
-#define IPIPE_PATCH_NUMBER 1
-
-#ifdef CONFIG_SMP
-#error "I-pipe/blackfin: SMP not implemented"
-#else /* !CONFIG_SMP */
-#define ipipe_processor_id() 0
-#endif /* CONFIG_SMP */
-
-#define prepare_arch_switch(next) \
-do { \
- ipipe_schedule_notify(current, next); \
- hard_local_irq_disable(); \
-} while (0)
-
-#define task_hijacked(p) \
- ({ \
- int __x__ = __ipipe_root_domain_p; \
- if (__x__) \
- hard_local_irq_enable(); \
- !__x__; \
- })
-
-struct ipipe_domain;
-
-struct ipipe_sysinfo {
- 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) \
- ({ \
- unsigned long __cy2; \
- __asm__ __volatile__ ("1: %0 = CYCLES2\n" \
- "%1 = CYCLES\n" \
- "%2 = CYCLES2\n" \
- "CC = %2 == %0\n" \
- "if ! CC jump 1b\n" \
- : "=d,a" (((unsigned long *)&t)[1]), \
- "=d,a" (((unsigned long *)&t)[0]), \
- "=d,a" (__cy2) \
- : /*no input*/ : "CC"); \
- t; \
- })
-
-#define ipipe_cpu_freq() __ipipe_core_clock
-#define ipipe_tsc2ns(_t) (((unsigned long)(_t)) * __ipipe_freq_scale)
-#define ipipe_tsc2us(_t) (ipipe_tsc2ns(_t) / 1000 + 1)
-
-/* Private interface -- Internal use only */
-
-#define __ipipe_check_platform() do { } while (0)
-
-#define __ipipe_init_platform() do { } while (0)
-
-extern atomic_t __ipipe_irq_lvdepth[IVG15 + 1];
-
-extern unsigned long __ipipe_irq_lvmask;
-
-extern struct ipipe_domain ipipe_root;
-
-/* enable/disable_irqdesc _must_ be used in pairs. */
-
-void __ipipe_enable_irqdesc(struct ipipe_domain *ipd,
- unsigned irq);
-
-void __ipipe_disable_irqdesc(struct ipipe_domain *ipd,
- unsigned 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_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)
-
-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)
-
-void ___ipipe_sync_pipeline(void);
-
-void __ipipe_handle_irq(unsigned irq, struct pt_regs *regs);
-
-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;
-
-extern unsigned long __ipipe_freq_scale;
-
-extern unsigned long __ipipe_irq_tail_hook;
-
-static inline unsigned long __ipipe_ffnz(unsigned long ul)
-{
- return ffs(ul) - 1;
-}
-
-#define __ipipe_do_root_xirq(ipd, irq) \
- ((ipd)->irqs[irq].handler(irq, raw_cpu_ptr(&__ipipe_tick_regs)))
-
-#define __ipipe_run_irqtail(irq) /* Must be a macro */ \
- do { \
- unsigned long __pending; \
- CSYNC(); \
- __pending = bfin_read_IPEND(); \
- if (__pending & 0x8000) { \
- __pending &= ~0x8010; \
- if (__pending && (__pending & (__pending - 1)) == 0) \
- __ipipe_call_irqtail(__ipipe_irq_tail_hook); \
- } \
- } while (0)
-
-#define __ipipe_syscall_watched_p(p, sc) \
- (ipipe_notifier_enabled_p(p) || (unsigned long)sc >= NR_syscalls)
-
-#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 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)
-#endif
-
-#define __ipipe_root_tick_p(regs) ((regs->ipend & 0x10) != 0)
-
-#else /* !CONFIG_IPIPE */
-
-#define task_hijacked(p) 0
-#define ipipe_trap_notify(t, r) 0
-#define __ipipe_root_tick_p(regs) 1
-
-#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_update_tick_evtdev(evtdev) do { } while (0)
-
-#endif /* !__ASM_BLACKFIN_IPIPE_H */
git.samba.org / sfrench / cifs-2.6.git / blobdiff