109 lines
2.9 KiB
C
109 lines
2.9 KiB
C
/*
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* Secondary space support for E2K binary compiler
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* asm/secondary_space.h
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*/
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#ifndef _SECONDARY_SPACE_H
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#define _SECONDARY_SPACE_H
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#ifndef __ASSEMBLY__
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#include <linux/mm_types.h>
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#include <asm/machdep.h>
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#include <asm/page.h>
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#include <asm/processor.h>
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#include <asm/types.h>
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#include <asm/smp.h>
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#include <asm/mmu_regs.h>
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#endif /* !__ASSEMBLY__ */
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#define BINCO_PROTOCOL_VERSION 4
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#define NATIVE_IS_NEXT_ELBRUS_2S \
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((int)machine.native_iset_ver >= ELBRUS_2S_ISET)
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#define NATIVE_SS_SIZE \
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((NATIVE_IS_NEXT_ELBRUS_2S) ? \
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(0x800000000000UL) : (0x100000000UL))
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#define NATIVE_SS_ADDR_START \
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(NATIVE_IS_NEXT_ELBRUS_2S ? \
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0x0000400000000000L : 0x0000100000000000L)
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#ifdef CONFIG_KVM_GUEST_KERNEL
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/* it is native guest kernel (not paravirtualized based on pv_ops) */
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#include <asm/kvm/guest/secondary_space.h>
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#elif defined(CONFIG_PARAVIRT_GUEST)
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/* it is paravirtualized host and guest kernel */
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#include <asm/paravirt/secondary_space.h>
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#else /* ! CONFIG_KVM_GUEST_KERNEL && ! CONFIG_PARAVIRT_GUEST */
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/* it is native kernel without any virtualization */
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/* or host kernel with virtualization support */
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#define IS_NEXT_ELBRUS_2S NATIVE_IS_NEXT_ELBRUS_2S
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#define SS_SIZE NATIVE_SS_SIZE
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#define SS_ADDR_START NATIVE_SS_ADDR_START
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#endif /* ! CONFIG_KVM_GUEST_KERNEL */
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/*
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* If updating this value - do not forget to update E2K_ARG3_MASK -
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* mask for 63-45 bits and PAGE_OFFSET.
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*/
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#define SS_ADDR_END (SS_ADDR_START + SS_SIZE)
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#ifdef CONFIG_SECONDARY_SPACE_SUPPORT
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#define ADDR_IN_SS(a) ((a >= SS_ADDR_START) && (a < SS_ADDR_END))
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#else
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#define ADDR_IN_SS(a) 0
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#endif
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#define DEBUG_SS_MODE 0 /* Secondary Space Debug */
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#define DebugSS(...) DebugPrint(DEBUG_SS_MODE, ##__VA_ARGS__)
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#ifndef __ASSEMBLY__
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extern
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s64 sys_el_binary(s64 work, s64 arg2, s64 arg3, s64 arg4);
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/*
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* Intreface of el_binary() syscall
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* Work argument(arg1) values:
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*/
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#define GET_SECONDARY_SPACE_OFFSET 0
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#define SET_SECONDARY_REMAP_BOUND 1
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#define SET_SECONDARY_DESCRIPTOR 2
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#define SET_SECONDARY_MTRR_DEPRECATED 3
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#define GET_SECONDARY_MTRR_DEPRECATED 4
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#define GET_SNXE_USAGE 5
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#define TGKILL_INFO_DEPRECATED 6
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#define SIG_EXIT_GROUP 7
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#define FLUSH_CMD_CACHES_DEPRECATED 8
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#define SET_SC_RSTRT_IGNORE_DEPRECATED 9
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#define SET_RP_BOUNDS_AND_IP 10
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#define SET_SECONDARY_64BIT_MODE 11
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#define GET_PROTOCOL_VERSION 12
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#define SET_IC_NEED_FLUSH_ON_SWITCH 13
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#define GET_UPT_SEC_AD_SHIFT_DSBL 14
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#define SET_UPT_SEC_AD_SHIFT_DSBL 15
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/* Selector numbers for GET_SECONDARY_SPACE_OFFSET */
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enum sel_num {
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CS_SELECTOR = 0,
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DS_SELECTOR = 1,
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ES_SELECTOR = 2,
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SS_SELECTOR = 3,
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FS_SELECTOR = 4,
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GS_SELECTOR = 5,
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};
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#define E2K_ARG3_MASK (0xffffe000ffffffffLL)
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#define I32_ADDR_TO_E2K(arg) \
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({ \
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s64 argm; \
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argm = arg; \
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if (machine.native_iset_ver < E2K_ISET_V3) { \
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argm &= E2K_ARG3_MASK; \
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argm |= SS_ADDR_START; \
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} \
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argm; \
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})
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#endif /* !__ASSEMBLY__ */
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#endif /* _SECONDARY_SPACE_H */
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