/* $NetBSD: cpufunc.h,v 1.26 2002/08/14 23:24:46 thorpej Exp $ */ /* * Copyright (c) 1997 Mark Brinicombe. * Copyright (c) 1997 Causality Limited * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Causality Limited. * 4. The name of Causality Limited may not be used to endorse or promote * products derived from this software without specific prior written * permission. * * THIS SOFTWARE IS PROVIDED BY CAUSALITY LIMITED ``AS IS'' AND ANY EXPRESS * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL CAUSALITY LIMITED BE LIABLE FOR ANY DIRECT, * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * RiscBSD kernel project * * cpufunc.h * * Prototypes for cpu, mmu and tlb related functions. */ #ifndef _ARM32_CPUFUNC_H_ #define _ARM32_CPUFUNC_H_ #ifdef _KERNEL #include #include struct cpu_functions { /* CPU functions */ u_int (*cf_id) __P((void)); void (*cf_cpwait) __P((void)); /* MMU functions */ u_int (*cf_control) __P((u_int bic, u_int eor)); void (*cf_domains) __P((u_int domains)); void (*cf_setttb) __P((u_int ttb)); u_int (*cf_faultstatus) __P((void)); u_int (*cf_faultaddress) __P((void)); /* TLB functions */ void (*cf_tlb_flushID) __P((void)); void (*cf_tlb_flushID_SE) __P((u_int va)); void (*cf_tlb_flushI) __P((void)); void (*cf_tlb_flushI_SE) __P((u_int va)); void (*cf_tlb_flushD) __P((void)); void (*cf_tlb_flushD_SE) __P((u_int va)); /* * Cache operations: * * We define the following primitives: * * icache_sync_all Synchronize I-cache * icache_sync_range Synchronize I-cache range * * dcache_wbinv_all Write-back and Invalidate D-cache * dcache_wbinv_range Write-back and Invalidate D-cache range * dcache_inv_range Invalidate D-cache range * dcache_wb_range Write-back D-cache range * * idcache_wbinv_all Write-back and Invalidate D-cache, * Invalidate I-cache * idcache_wbinv_range Write-back and Invalidate D-cache, * Invalidate I-cache range * * Note that the ARM term for "write-back" is "clean". We use * the term "write-back" since it's a more common way to describe * the operation. * * There are some rules that must be followed: * * I-cache Synch (all or range): * The goal is to synchronize the instruction stream, * so you may beed to write-back dirty D-cache blocks * first. If a range is requested, and you can't * synchronize just a range, you have to hit the whole * thing. * * D-cache Write-Back and Invalidate range: * If you can't WB-Inv a range, you must WB-Inv the * entire D-cache. * * D-cache Invalidate: * If you can't Inv the D-cache, you must Write-Back * and Invalidate. Code that uses this operation * MUST NOT assume that the D-cache will not be written * back to memory. * * D-cache Write-Back: * If you can't Write-back without doing an Inv, * that's fine. Then treat this as a WB-Inv. * Skipping the invalidate is merely an optimization. * * All operations: * Valid virtual addresses must be passed to each * cache operation. */ void (*cf_icache_sync_all) __P((void)); void (*cf_icache_sync_range) __P((vaddr_t, vsize_t)); void (*cf_dcache_wbinv_all) __P((void)); void (*cf_dcache_wbinv_range) __P((vaddr_t, vsize_t)); void (*cf_dcache_inv_range) __P((vaddr_t, vsize_t)); void (*cf_dcache_wb_range) __P((vaddr_t, vsize_t)); void (*cf_idcache_wbinv_all) __P((void)); void (*cf_idcache_wbinv_range) __P((vaddr_t, vsize_t)); /* Other functions */ void (*cf_flush_prefetchbuf) __P((void)); void (*cf_drain_writebuf) __P((void)); void (*cf_flush_brnchtgt_C) __P((void)); void (*cf_flush_brnchtgt_E) __P((u_int va)); void (*cf_sleep) __P((int mode)); /* Soft functions */ int (*cf_dataabt_fixup) __P((void *arg)); int (*cf_prefetchabt_fixup) __P((void *arg)); void (*cf_context_switch) __P((void)); void (*cf_setup) __P((char *string)); }; extern struct cpu_functions cpufuncs; extern u_int cputype; #define cpu_id() cpufuncs.cf_id() #define cpu_cpwait() cpufuncs.cf_cpwait() #define cpu_control(c, e) cpufuncs.cf_control(c, e) #define cpu_domains(d) cpufuncs.cf_domains(d) #define cpu_setttb(t) cpufuncs.cf_setttb(t) #define cpu_faultstatus() cpufuncs.cf_faultstatus() #define cpu_faultaddress() cpufuncs.cf_faultaddress() #define cpu_tlb_flushID() cpufuncs.cf_tlb_flushID() #define cpu_tlb_flushID_SE(e) cpufuncs.cf_tlb_flushID_SE(e) #define cpu_tlb_flushI() cpufuncs.cf_tlb_flushI() #define cpu_tlb_flushI_SE(e) cpufuncs.cf_tlb_flushI_SE(e) #define cpu_tlb_flushD() cpufuncs.cf_tlb_flushD() #define cpu_tlb_flushD_SE(e) cpufuncs.cf_tlb_flushD_SE(e) #define cpu_icache_sync_all() cpufuncs.cf_icache_sync_all() #define cpu_icache_sync_range(a, s) cpufuncs.cf_icache_sync_range((a), (s)) #define cpu_dcache_wbinv_all() cpufuncs.cf_dcache_wbinv_all() #define cpu_dcache_wbinv_range(a, s) cpufuncs.cf_dcache_wbinv_range((a), (s)) #define cpu_dcache_inv_range(a, s) cpufuncs.cf_dcache_inv_range((a), (s)) #define cpu_dcache_wb_range(a, s) cpufuncs.cf_dcache_wb_range((a), (s)) #define cpu_idcache_wbinv_all() cpufuncs.cf_idcache_wbinv_all() #define cpu_idcache_wbinv_range(a, s) cpufuncs.cf_idcache_wbinv_range((a), (s)) #define cpu_flush_prefetchbuf() cpufuncs.cf_flush_prefetchbuf() #define cpu_drain_writebuf() cpufuncs.cf_drain_writebuf() #define cpu_flush_brnchtgt_C() cpufuncs.cf_flush_brnchtgt_C() #define cpu_flush_brnchtgt_E(e) cpufuncs.cf_flush_brnchtgt_E(e) #define cpu_sleep(m) cpufuncs.cf_sleep(m) #define cpu_dataabt_fixup(a) cpufuncs.cf_dataabt_fixup(a) #define cpu_prefetchabt_fixup(a) cpufuncs.cf_prefetchabt_fixup(a) #define ABORT_FIXUP_OK 0 /* fixup succeeded */ #define ABORT_FIXUP_FAILED 1 /* fixup failed */ #define ABORT_FIXUP_RETURN 2 /* abort handler should return */ #define cpu_setup(a) cpufuncs.cf_setup(a) int set_cpufuncs __P((void)); #define ARCHITECTURE_NOT_PRESENT 1 /* known but not configured */ #define ARCHITECTURE_NOT_SUPPORTED 2 /* not known */ void cpufunc_nullop __P((void)); int cpufunc_null_fixup __P((void *)); int early_abort_fixup __P((void *)); int late_abort_fixup __P((void *)); u_int cpufunc_id __P((void)); u_int cpufunc_control __P((u_int clear, u_int bic)); void cpufunc_domains __P((u_int domains)); u_int cpufunc_faultstatus __P((void)); u_int cpufunc_faultaddress __P((void)); #ifdef CPU_ARM3 u_int arm3_control __P((u_int clear, u_int bic)); void arm3_cache_flush __P((void)); #endif /* CPU_ARM3 */ #if defined(CPU_ARM6) || defined(CPU_ARM7) void arm67_setttb __P((u_int ttb)); void arm67_tlb_flush __P((void)); void arm67_tlb_purge __P((u_int va)); void arm67_cache_flush __P((void)); void arm67_context_switch __P((void)); #endif /* CPU_ARM6 || CPU_ARM7 */ #ifdef CPU_ARM6 void arm6_setup __P((char *string)); #endif /* CPU_ARM6 */ #ifdef CPU_ARM7 void arm7_setup __P((char *string)); #endif /* CPU_ARM7 */ #ifdef CPU_ARM7TDMI int arm7_dataabt_fixup __P((void *arg)); void arm7tdmi_setup __P((char *string)); void arm7tdmi_setttb __P((u_int ttb)); void arm7tdmi_tlb_flushID __P((void)); void arm7tdmi_tlb_flushID_SE __P((u_int va)); void arm7tdmi_cache_flushID __P((void)); void arm7tdmi_context_switch __P((void)); #endif /* CPU_ARM7TDMI */ #ifdef CPU_ARM8 void arm8_setttb __P((u_int ttb)); void arm8_tlb_flushID __P((void)); void arm8_tlb_flushID_SE __P((u_int va)); void arm8_cache_flushID __P((void)); void arm8_cache_flushID_E __P((u_int entry)); void arm8_cache_cleanID __P((void)); void arm8_cache_cleanID_E __P((u_int entry)); void arm8_cache_purgeID __P((void)); void arm8_cache_purgeID_E __P((u_int entry)); void arm8_cache_syncI __P((void)); void arm8_cache_cleanID_rng __P((vaddr_t start, vsize_t end)); void arm8_cache_cleanD_rng __P((vaddr_t start, vsize_t end)); void arm8_cache_purgeID_rng __P((vaddr_t start, vsize_t end)); void arm8_cache_purgeD_rng __P((vaddr_t start, vsize_t end)); void arm8_cache_syncI_rng __P((vaddr_t start, vsize_t end)); void arm8_context_switch __P((void)); void arm8_setup __P((char *string)); u_int arm8_clock_config __P((u_int, u_int)); #endif #ifdef CPU_SA110 void sa110_setup __P((char *string)); void sa110_context_switch __P((void)); #endif /* CPU_SA110 */ #if defined(CPU_SA1100) || defined(CPU_SA1110) void sa11x0_drain_readbuf __P((void)); void sa11x0_context_switch __P((void)); void sa11x0_cpu_sleep __P((int mode)); void sa11x0_setup __P((char *string)); #endif #if defined(CPU_SA110) || defined(CPU_SA1100) || defined(CPU_SA1110) void sa1_setttb __P((u_int ttb)); void sa1_tlb_flushID_SE __P((u_int va)); void sa1_cache_flushID __P((void)); void sa1_cache_flushI __P((void)); void sa1_cache_flushD __P((void)); void sa1_cache_flushD_SE __P((u_int entry)); void sa1_cache_cleanID __P((void)); void sa1_cache_cleanD __P((void)); void sa1_cache_cleanD_E __P((u_int entry)); void sa1_cache_purgeID __P((void)); void sa1_cache_purgeID_E __P((u_int entry)); void sa1_cache_purgeD __P((void)); void sa1_cache_purgeD_E __P((u_int entry)); void sa1_cache_syncI __P((void)); void sa1_cache_cleanID_rng __P((vaddr_t start, vsize_t end)); void sa1_cache_cleanD_rng __P((vaddr_t start, vsize_t end)); void sa1_cache_purgeID_rng __P((vaddr_t start, vsize_t end)); void sa1_cache_purgeD_rng __P((vaddr_t start, vsize_t end)); void sa1_cache_syncI_rng __P((vaddr_t start, vsize_t end)); #endif #ifdef CPU_ARM9 void arm9_setttb __P((u_int)); void arm9_tlb_flushID_SE __P((u_int va)); void arm9_cache_flushID __P((void)); void arm9_cache_flushID_SE __P((u_int)); void arm9_cache_flushI __P((void)); void arm9_cache_flushI_SE __P((u_int)); void arm9_cache_flushD __P((void)); void arm9_cache_flushD_SE __P((u_int)); void arm9_cache_cleanID __P((void)); void arm9_cache_syncI __P((void)); void arm9_cache_flushID_rng __P((vaddr_t, vsize_t)); void arm9_cache_flushD_rng __P((vaddr_t, vsize_t)); void arm9_cache_syncI_rng __P((vaddr_t, vsize_t)); void arm9_context_switch __P((void)); void arm9_setup __P((char *string)); #endif #if defined(CPU_ARM9) || defined(CPU_SA110) || defined(CPU_SA1100) || \ defined(CPU_SA1110) || defined(CPU_XSCALE_80200) || \ defined(CPU_XSCALE_80321) || defined(CPU_XSCALE_PXA2X0) void armv4_tlb_flushID __P((void)); void armv4_tlb_flushI __P((void)); void armv4_tlb_flushD __P((void)); void armv4_tlb_flushD_SE __P((u_int va)); void armv4_drain_writebuf __P((void)); #endif #if defined(CPU_IXP12X0) void ixp12x0_drain_readbuf __P((void)); void ixp12x0_context_switch __P((void)); void ixp12x0_setup __P((char *string)); #endif #if defined(CPU_XSCALE_80200) || defined(CPU_XSCALE_80321) || \ defined(CPU_XSCALE_PXA2X0) void xscale_cpwait __P((void)); void xscale_cpu_sleep __P((int mode)); u_int xscale_control __P((u_int clear, u_int bic)); void xscale_setttb __P((u_int ttb)); void xscale_tlb_flushID_SE __P((u_int va)); void xscale_cache_flushID __P((void)); void xscale_cache_flushI __P((void)); void xscale_cache_flushD __P((void)); void xscale_cache_flushD_SE __P((u_int entry)); void xscale_cache_cleanID __P((void)); void xscale_cache_cleanD __P((void)); void xscale_cache_cleanD_E __P((u_int entry)); void xscale_cache_clean_minidata __P((void)); void xscale_cache_purgeID __P((void)); void xscale_cache_purgeID_E __P((u_int entry)); void xscale_cache_purgeD __P((void)); void xscale_cache_purgeD_E __P((u_int entry)); void xscale_cache_syncI __P((void)); void xscale_cache_cleanID_rng __P((vaddr_t start, vsize_t end)); void xscale_cache_cleanD_rng __P((vaddr_t start, vsize_t end)); void xscale_cache_purgeID_rng __P((vaddr_t start, vsize_t end)); void xscale_cache_purgeD_rng __P((vaddr_t start, vsize_t end)); void xscale_cache_syncI_rng __P((vaddr_t start, vsize_t end)); void xscale_cache_flushD_rng __P((vaddr_t start, vsize_t end)); void xscale_context_switch __P((void)); void xscale_setup __P((char *string)); #endif /* CPU_XSCALE_80200 || CPU_XSCALE_80321 || CPU_XSCALE_PXA2X0 */ #define tlb_flush cpu_tlb_flushID #define setttb cpu_setttb #define drain_writebuf cpu_drain_writebuf /* * Macros for manipulating CPU interrupts */ #ifdef __PROG32 static __inline u_int32_t __set_cpsr_c(u_int bic, u_int eor) __attribute__((__unused__)); static __inline u_int32_t __set_cpsr_c(u_int bic, u_int eor) { u_int32_t tmp, ret; __asm __volatile( "mrs %0, cpsr\n" /* Get the CPSR */ "bic %1, %0, %2\n" /* Clear bits */ "eor %1, %1, %3\n" /* XOR bits */ "msr cpsr_c, %1\n" /* Set the control field of CPSR */ : "=&r" (ret), "=&r" (tmp) : "r" (bic), "r" (eor)); return ret; } #define disable_interrupts(mask) \ (__set_cpsr_c((mask) & (I32_bit | F32_bit), \ (mask) & (I32_bit | F32_bit))) #define enable_interrupts(mask) \ (__set_cpsr_c((mask) & (I32_bit | F32_bit), 0)) #define restore_interrupts(old_cpsr) \ (__set_cpsr_c((I32_bit | F32_bit), (old_cpsr) & (I32_bit | F32_bit))) #else /* ! __PROG32 */ #define disable_interrupts(mask) \ (set_r15((mask) & (R15_IRQ_DISABLE | R15_FIQ_DISABLE), \ (mask) & (R15_IRQ_DISABLE | R15_FIQ_DISABLE))) #define enable_interrupts(mask) \ (set_r15((mask) & (R15_IRQ_DISABLE | R15_FIQ_DISABLE), 0)) #define restore_interrupts(old_r15) \ (set_r15((R15_IRQ_DISABLE | R15_FIQ_DISABLE), \ (old_r15) & (R15_IRQ_DISABLE | R15_FIQ_DISABLE))) #endif /* __PROG32 */ #ifdef __PROG32 /* Functions to manipulate the CPSR. */ u_int SetCPSR(u_int bic, u_int eor); u_int GetCPSR(void); #else /* Functions to manipulate the processor control bits in r15. */ u_int set_r15(u_int bic, u_int eor); u_int get_r15(void); #endif /* __PROG32 */ /* * Functions to manipulate cpu r13 * (in arm/arm32/setstack.S) */ void set_stackptr __P((u_int mode, u_int address)); u_int get_stackptr __P((u_int mode)); /* * Miscellany */ int get_pc_str_offset __P((void)); /* * CPU functions from locore.S */ void cpu_reset __P((void)) __attribute__((__noreturn__)); /* * Cache info variables. */ /* PRIMARY CACHE VARIABLES */ int arm_picache_size; int arm_picache_line_size; int arm_picache_ways; int arm_pdcache_size; /* and unified */ int arm_pdcache_line_size; int arm_pdcache_ways; int arm_pcache_type; int arm_pcache_unified; int arm_dcache_align; int arm_dcache_align_mask; #endif /* _KERNEL */ #endif /* _ARM32_CPUFUNC_H_ */ /* End of cpufunc.h */