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File: [local] / sys / arch / m88k / include / asm_macro.h (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:07:09 2008 UTC (16 years, 3 months ago) by nbrk
Import of OpenBSD 4.2 release kernel tree with initial code to support Jornada 720/728, StrongARM 1110-based handheld PC. At this point kernel roots on NFS and boots into vfs_mountroot() and traps. What is supported: - glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode (needs some palette tweaks for non black/white/blue colors, i think) - saic, SA11x0 interrupt controller (needs cleanup) - sacom, SA11x0 UART (supported only as boot console for now) - SA11x0 GPIO controller fully supported (but can't handle multiple interrupt handlers on one gpio pin) - sassp, SSP port on SA11x0 that attaches spibus - Jornada microcontroller (jmcu) to control kbd, battery, etc throught the SPI bus (wskbd attaches on jmcu, but not tested) - tod functions seem work - initial code for SA-1111 (chip companion) : this is TODO Next important steps, i think: - gpio and intc on sa1111 - pcmcia support for sa11x0 (and sa1111 help logic) - REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs) - root on wd0! (using already supported PCMCIA-ATA) |
/* $OpenBSD: asm_macro.h,v 1.3 2005/12/03 16:52:16 miod Exp $ */ /* * Mach Operating System * Copyright (c) 1993-1991 Carnegie Mellon University * Copyright (c) 1991 OMRON Corporation * All Rights Reserved. * * Permission to use, copy, modify and distribute this software and its * documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * CARNEGIE MELLON AND OMRON ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON AND OMRON DISCLAIM ANY LIABILITY OF ANY KIND * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * Carnegie Mellon requests users of this software to return to * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 * * any improvements or extensions that they make and grant Carnegie the * rights to redistribute these changes. */ #ifndef __M88K_ASM_MACRO_H__ #define __M88K_ASM_MACRO_H__ /* * Various compiler macros used for speed and efficiency. * Anyone can include. */ #include <machine/asm.h> /* * Flushes the data pipeline. */ #define flush_pipeline() \ __asm__ __volatile__ (FLUSH_PIPELINE_STRING) /* * Sets the PSR. */ static __inline__ void set_psr(u_int psr) { __asm__ __volatile__ ("stcr %0, cr1" :: "r" (psr)); __asm__ __volatile__ (FLUSH_PIPELINE_STRING); } /* * Gets the PSR. */ static __inline__ u_int get_psr(void) { u_int psr; __asm__ __volatile__ ("ldcr %0, cr1" : "=r" (psr)); return (psr); } #define disable_interrupt(psr) set_psr(((psr) = get_psr()) | PSR_IND) /* * Provide access from C code to the assembly instruction ff1 */ static __inline__ unsigned ff1(unsigned val) { __asm__ __volatile__ ("ff1 %0, %0" : "=r" (val) : "0" (val)); return (val); } static __inline__ u_int get_cpu_pid(void) { u_int pid; __asm__ __volatile__ ("ldcr %0, cr0" : "=r" (pid)); return (pid); } #endif /* __M88K_ASM_MACRO_H__ */