/* * linux/include/asm-arm/glue.h * * Copyright (C) 1997-1999 Russell King * Copyright (C) 2000-2002 Deep Blue Solutions Ltd. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * This file provides the glue to stick the processor-specific bits * into the kernel in an efficient manner. The idea is to use branches * when we're only targetting one class of TLB, or indirect calls * when we're targetting multiple classes of TLBs. */ #ifdef __KERNEL__ #include <linux/config.h> #ifdef __STDC__ #define ____glue(name,fn) name##fn #else #define ____glue(name,fn) name/**/fn #endif #define __glue(name,fn) ____glue(name,fn) /* * MMU TLB Model * ============= * * We have the following to choose from: * v3 - ARMv3 * v4 - ARMv4 without write buffer * v4wb - ARMv4 with write buffer without I TLB flush entry instruction * v4wbi - ARMv4 with write buffer with I TLB flush entry instruction */ #undef _TLB #undef MULTI_TLB #if defined(CONFIG_CPU_ARM610) || defined(CONFIG_CPU_ARM710) # ifdef _TLB # define MULTI_TLB 1 # else # define _TLB v3 # endif #endif #if defined(CONFIG_CPU_ARM720T) # ifdef _TLB # define MULTI_TLB 1 # else # define _TLB v4 # endif #endif #if defined(CONFIG_CPU_ARM920T) || defined(CONFIG_CPU_ARM922T) || \ defined(CONFIG_CPU_ARM926T) || defined(CONFIG_CPU_ARM1020) || \ defined(CONFIG_CPU_XSCALE) # ifdef _TLB # define MULTI_TLB 1 # else # define _TLB v4wbi # endif #endif #if defined(CONFIG_CPU_SA110) || defined(CONFIG_CPU_SA1100) # ifdef _TLB # define MULTI_TLB 1 # else # define _TLB v4wb # endif #endif #ifndef _TLB #error Unknown TLB model #endif /* * Data Abort Model * ================ * * We have the following to choose from: * arm6 - ARM6 style * arm7 - ARM7 style * v4_early - ARMv4 without Thumb early abort handler * v4t_late - ARMv4 with Thumb late abort handler * v4t_early - ARMv4 with Thumb early abort handler * v5ej_early - ARMv5 with Thumb and Java early abort handler */ #undef CPU_ABORT_HANDLER #undef MULTI_ABORT #if defined(CONFIG_CPU_ARM610) # ifdef CPU_ABORT_HANDLER # define MULTI_ABORT 1 # else # define CPU_ABORT_HANDLER cpu_arm6_data_abort # endif #endif #if defined(CONFIG_CPU_ARM710) # ifdef CPU_ABORT_HANDLER # define MULTI_ABORT 1 # else # define CPU_ABORT_HANDLER cpu_arm7_data_abort # endif #endif #if defined(CONFIG_CPU_ARM720T) # ifdef CPU_ABORT_HANDLER # define MULTI_ABORT 1 # else # define CPU_ABORT_HANDLER v4t_late_abort # endif #endif #if defined(CONFIG_CPU_SA110) || defined(CONFIG_CPU_SA1100) # ifdef CPU_ABORT_HANDLER # define MULTI_ABORT 1 # else # define CPU_ABORT_HANDLER v4_early_abort # endif #endif #if defined(CONFIG_CPU_ARM920T) || defined(CONFIG_CPU_ARM922T) || \ defined(CONFIG_CPU_ARM1020) || defined(CONFIG_CPU_XSCALE) # ifdef CPU_ABORT_HANDLER # define MULTI_ABORT 1 # else # define CPU_ABORT_HANDLER v4t_early_abort # endif #endif #if defined(CONFIG_CPU_ARM926T) # ifdef CPU_ABORT_HANDLER # define MULTI_ABORT 1 # else # define CPU_ABORT_HANDLER v5ej_early_abort # endif #endif #ifndef CPU_ABORT_HANDLER #error Unknown data abort handler type #endif /* * User Space Model * ================ * * This section selects the correct set of functions for dealing with * page-based copying and clearing for user space for the particular * processor(s) we're building for. * * We have the following to choose from: * v3 - ARMv3 * v4wt - ARMv4 with writethrough cache, without minicache * v4wb - ARMv4 with writeback cache, without minicache * v4_mc - ARMv4 with minicache * v5te_mc - ARMv5TE with minicache */ #undef _USER #undef MULTI_USER #if defined(CONFIG_CPU_ARM610) || defined(CONFIG_CPU_ARM710) # ifdef _USER # define MULTI_USER 1 # else # define _USER v3 # endif #endif #if defined(CONFIG_CPU_ARM720T) # ifdef _USER # define MULTI_USER 1 # else # define _USER v4wt # endif #endif #if defined(CONFIG_CPU_ARM920T) || defined(CONFIG_CPU_ARM922T) || \ defined(CONFIG_CPU_ARM926T) || defined(CONFIG_CPU_SA110) || \ defined(CONFIG_CPU_ARM1020) # ifdef _USER # define MULTI_USER 1 # else # define _USER v4wb # endif #endif #if defined(CONFIG_CPU_SA1100) # ifdef _USER # define MULTI_USER 1 # else # define _USER v4_mc # endif #endif #if defined(CONFIG_CPU_XSCALE) # ifdef _USER # define MULTI_USER 1 # else # define _USER v5te_mc # endif #endif #ifndef _USER #error Unknown user operations model #endif #endif