/** * Copyright © 2002-2004 Philippe Gerum. * * ARM port * Copyright (C) 2005 Stelian Pop * * Xenomai 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. * * Xenomai 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 Xenomai; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA * 02111-1307, USA. */ #ifndef _COBALT_ARM_ASM_MACHINE_H #define _COBALT_ARM_ASM_MACHINE_H #include #include #define XNARCH_HOST_TICK_IRQ __ipipe_hrtimer_irq #include #include #include #include #include #include #include #include #include #include #include #define xnarch_cache_aliasing() cache_is_vivt() #if __LINUX_ARM_ARCH__ < 5 static inline __attribute_const__ unsigned long ffnz(unsigned long x) { int r = 0; if (!x) return 0; if (!(x & 0xffff)) { x >>= 16; r += 16; } if (!(x & 0xff)) { x >>= 8; r += 8; } if (!(x & 0xf)) { x >>= 4; r += 4; } if (!(x & 3)) { x >>= 2; r += 2; } if (!(x & 1)) { x >>= 1; r += 1; } return r; } #else static inline __attribute_const__ unsigned long ffnz(unsigned long ul) { int __r; __asm__("clz\t%0, %1" : "=r" (__r) : "r"(ul & (-ul)) : "cc"); return 31 - __r; } #endif #include #endif /* !_COBALT_ARM_ASM_MACHINE_H */