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276 lines
5.8 KiB
276 lines
5.8 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* Declarations for to Hexagon Virtal Machine. |
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* |
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* Copyright (c) 2010-2013, The Linux Foundation. All rights reserved. |
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*/ |
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#ifndef ASM_HEXAGON_VM_H |
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#define ASM_HEXAGON_VM_H |
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/* |
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* In principle, a Linux kernel for the VM could |
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* selectively define the virtual instructions |
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* as inline assembler macros, but for a first pass, |
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* we'll use subroutines for both the VM and the native |
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* kernels. It's costing a subroutine call/return, |
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* but it makes for a single set of entry points |
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* for tracing/debugging. |
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*/ |
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#define HVM_TRAP1_VMVERSION 0 |
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#define HVM_TRAP1_VMRTE 1 |
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#define HVM_TRAP1_VMSETVEC 2 |
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#define HVM_TRAP1_VMSETIE 3 |
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#define HVM_TRAP1_VMGETIE 4 |
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#define HVM_TRAP1_VMINTOP 5 |
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#define HVM_TRAP1_VMCLRMAP 10 |
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#define HVM_TRAP1_VMNEWMAP 11 |
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#define HVM_TRAP1_FORMERLY_VMWIRE 12 |
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#define HVM_TRAP1_VMCACHE 13 |
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#define HVM_TRAP1_VMGETTIME 14 |
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#define HVM_TRAP1_VMSETTIME 15 |
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#define HVM_TRAP1_VMWAIT 16 |
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#define HVM_TRAP1_VMYIELD 17 |
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#define HVM_TRAP1_VMSTART 18 |
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#define HVM_TRAP1_VMSTOP 19 |
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#define HVM_TRAP1_VMVPID 20 |
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#define HVM_TRAP1_VMSETREGS 21 |
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#define HVM_TRAP1_VMGETREGS 22 |
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#define HVM_TRAP1_VMTIMEROP 24 |
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#ifndef __ASSEMBLY__ |
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enum VM_CACHE_OPS { |
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hvmc_ickill, |
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hvmc_dckill, |
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hvmc_l2kill, |
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hvmc_dccleaninva, |
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hvmc_icinva, |
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hvmc_idsync, |
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hvmc_fetch_cfg |
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}; |
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enum VM_INT_OPS { |
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hvmi_nop, |
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hvmi_globen, |
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hvmi_globdis, |
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hvmi_locen, |
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hvmi_locdis, |
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hvmi_affinity, |
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hvmi_get, |
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hvmi_peek, |
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hvmi_status, |
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hvmi_post, |
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hvmi_clear |
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}; |
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extern void _K_VM_event_vector(void); |
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void __vmrte(void); |
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long __vmsetvec(void *); |
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long __vmsetie(long); |
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long __vmgetie(void); |
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long __vmintop(enum VM_INT_OPS, long, long, long, long); |
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long __vmclrmap(void *, unsigned long); |
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long __vmnewmap(void *); |
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long __vmcache(enum VM_CACHE_OPS op, unsigned long addr, unsigned long len); |
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unsigned long long __vmgettime(void); |
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long __vmsettime(unsigned long long); |
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long __vmstart(void *, void *); |
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void __vmstop(void); |
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long __vmwait(void); |
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void __vmyield(void); |
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long __vmvpid(void); |
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static inline long __vmcache_ickill(void) |
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{ |
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return __vmcache(hvmc_ickill, 0, 0); |
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} |
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static inline long __vmcache_dckill(void) |
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{ |
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return __vmcache(hvmc_dckill, 0, 0); |
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} |
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static inline long __vmcache_l2kill(void) |
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{ |
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return __vmcache(hvmc_l2kill, 0, 0); |
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} |
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static inline long __vmcache_dccleaninva(unsigned long addr, unsigned long len) |
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{ |
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return __vmcache(hvmc_dccleaninva, addr, len); |
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} |
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static inline long __vmcache_icinva(unsigned long addr, unsigned long len) |
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{ |
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return __vmcache(hvmc_icinva, addr, len); |
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} |
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static inline long __vmcache_idsync(unsigned long addr, |
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unsigned long len) |
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{ |
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return __vmcache(hvmc_idsync, addr, len); |
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} |
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static inline long __vmcache_fetch_cfg(unsigned long val) |
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{ |
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return __vmcache(hvmc_fetch_cfg, val, 0); |
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} |
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/* interrupt operations */ |
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static inline long __vmintop_nop(void) |
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{ |
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return __vmintop(hvmi_nop, 0, 0, 0, 0); |
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} |
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static inline long __vmintop_globen(long i) |
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{ |
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return __vmintop(hvmi_globen, i, 0, 0, 0); |
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} |
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static inline long __vmintop_globdis(long i) |
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{ |
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return __vmintop(hvmi_globdis, i, 0, 0, 0); |
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} |
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static inline long __vmintop_locen(long i) |
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{ |
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return __vmintop(hvmi_locen, i, 0, 0, 0); |
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} |
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static inline long __vmintop_locdis(long i) |
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{ |
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return __vmintop(hvmi_locdis, i, 0, 0, 0); |
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} |
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static inline long __vmintop_affinity(long i, long cpu) |
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{ |
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return __vmintop(hvmi_affinity, i, cpu, 0, 0); |
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} |
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static inline long __vmintop_get(void) |
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{ |
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return __vmintop(hvmi_get, 0, 0, 0, 0); |
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} |
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static inline long __vmintop_peek(void) |
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{ |
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return __vmintop(hvmi_peek, 0, 0, 0, 0); |
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} |
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static inline long __vmintop_status(long i) |
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{ |
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return __vmintop(hvmi_status, i, 0, 0, 0); |
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} |
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static inline long __vmintop_post(long i) |
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{ |
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return __vmintop(hvmi_post, i, 0, 0, 0); |
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} |
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static inline long __vmintop_clear(long i) |
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{ |
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return __vmintop(hvmi_clear, i, 0, 0, 0); |
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} |
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#else /* Only assembly code should reference these */ |
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#endif /* __ASSEMBLY__ */ |
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/* |
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* Constants for virtual instruction parameters and return values |
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*/ |
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/* vmnewmap arguments */ |
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#define VM_TRANS_TYPE_LINEAR 0 |
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#define VM_TRANS_TYPE_TABLE 1 |
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#define VM_TLB_INVALIDATE_FALSE 0 |
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#define VM_TLB_INVALIDATE_TRUE 1 |
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/* vmsetie arguments */ |
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#define VM_INT_DISABLE 0 |
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#define VM_INT_ENABLE 1 |
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/* vmsetimask arguments */ |
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#define VM_INT_UNMASK 0 |
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#define VM_INT_MASK 1 |
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#define VM_NEWMAP_TYPE_LINEAR 0 |
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#define VM_NEWMAP_TYPE_PGTABLES 1 |
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/* |
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* Event Record definitions useful to both C and Assembler |
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*/ |
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/* VMEST Layout */ |
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#define HVM_VMEST_UM_SFT 31 |
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#define HVM_VMEST_UM_MSK 1 |
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#define HVM_VMEST_IE_SFT 30 |
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#define HVM_VMEST_IE_MSK 1 |
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#define HVM_VMEST_SS_SFT 29 |
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#define HVM_VMEST_SS_MSK 1 |
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#define HVM_VMEST_EVENTNUM_SFT 16 |
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#define HVM_VMEST_EVENTNUM_MSK 0xff |
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#define HVM_VMEST_CAUSE_SFT 0 |
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#define HVM_VMEST_CAUSE_MSK 0xffff |
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/* |
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* The initial program gets to find a system environment descriptor |
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* on its stack when it begins execution. The first word is a version |
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* code to indicate what is there. Zero means nothing more. |
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*/ |
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#define HEXAGON_VM_SED_NULL 0 |
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/* |
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* Event numbers for vector binding |
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*/ |
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#define HVM_EV_RESET 0 |
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#define HVM_EV_MACHCHECK 1 |
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#define HVM_EV_GENEX 2 |
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#define HVM_EV_TRAP 8 |
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#define HVM_EV_INTR 15 |
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/* These shoud be nuked as soon as we know the VM is up to spec v0.1.1 */ |
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#define HVM_EV_INTR_0 16 |
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#define HVM_MAX_INTR 240 |
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/* |
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* Cause values for General Exception |
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*/ |
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#define HVM_GE_C_BUS 0x01 |
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#define HVM_GE_C_XPROT 0x11 |
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#define HVM_GE_C_XUSER 0x14 |
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#define HVM_GE_C_INVI 0x15 |
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#define HVM_GE_C_PRIVI 0x1B |
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#define HVM_GE_C_XMAL 0x1C |
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#define HVM_GE_C_WREG 0x1D |
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#define HVM_GE_C_PCAL 0x1E |
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#define HVM_GE_C_RMAL 0x20 |
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#define HVM_GE_C_WMAL 0x21 |
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#define HVM_GE_C_RPROT 0x22 |
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#define HVM_GE_C_WPROT 0x23 |
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#define HVM_GE_C_RUSER 0x24 |
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#define HVM_GE_C_WUSER 0x25 |
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#define HVM_GE_C_CACHE 0x28 |
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/* |
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* Cause codes for Machine Check |
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*/ |
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#define HVM_MCHK_C_DOWN 0x00 |
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#define HVM_MCHK_C_BADSP 0x01 |
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#define HVM_MCHK_C_BADEX 0x02 |
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#define HVM_MCHK_C_BADPT 0x03 |
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#define HVM_MCHK_C_REGWR 0x29 |
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#endif
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