Differential D3341 Diff 7786 lib/libkvm/kvm_sparc64.h

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lib/libkvm/kvm_sparc64.h

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				/*-
				* Copyright (c) 1989, 1992, 1993
				* The Regents of the University of California. All rights reserved.
				*
				* This code is derived from software developed by the Computer Systems
				* Engineering group at Lawrence Berkeley Laboratory under DARPA contract
				* BG 91-66 and contributed to Berkeley.
				*
				* 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.
				* 4. Neither the name of the University nor the names of its contributors
				* may be used to endorse or promote products derived from this software
				* without specific prior written permission.
				*
				* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
				*
				* $FreeBSD$
				*/

				#ifndef __KVM_SPARC64_H__
				#define __KVM_SPARC64_H__

				#ifdef __sparc64__
				#include <machine/tlb.h>
				#include <machine/tte.h>
				#endif

				#define SPARC64_PAGE_SHIFT 13
				#define SPARC64_PAGE_SIZE (1 << SPARC64_PAGE_SHIFT)
				#define SPARC64_PAGE_MASK (SPARC64_PAGE_SIZE - 1)

				#define SPARC64_MIN_DIRECT_ADDRESS (0xfffff80000000000)

				#define SPARC64_DIRECT_ADDRESS_BITS (43)
				#define SPARC64_DIRECT_ADDRESS_MASK \
				((1UL << SPARC64_DIRECT_ADDRESS_BITS) - 1)

				#define SPARC64_DIRECT_TO_PHYS(va) ((va) & SPARC64_DIRECT_ADDRESS_MASK)

				#define SPARC64_TTE_SHIFT (5)

				#define SPARC64_TD_SIZE_SHIFT (61)
				#define SPARC64_TD_PA_SHIFT (13)

				#define SPARC64_TD_SIZE_BITS (2)
				#define SPARC64_TD_PA_CH_BITS (30) /* US-III{,i,+}, US-IV{,+}, SPARC64 V */
				#define SPARC64_TD_PA_BITS SPARC64_TD_PA_CH_BITS

				#define SPARC64_TD_SIZE_MASK (((uint64_t)1 << SPARC64_TD_SIZE_BITS) - 1)
				#define SPARC64_TD_PA_MASK (((uint64_t)1 << SPARC64_TD_PA_BITS) - 1)

				#define SPARC64_TD_V ((uint64_t)1 << 63)

				#define SPARC64_TV_SIZE_BITS (SPARC64_TD_SIZE_BITS)
				#define SPARC64_TV_VPN(va, sz) \
				((((va) >> SPARC64_TTE_PAGE_SHIFT(sz)) << SPARC64_TV_SIZE_BITS) \| sz)

				#define SPARC64_TTE_SIZE_SPREAD (3)
				#define SPARC64_TTE_PAGE_SHIFT(sz) \
				(SPARC64_PAGE_SHIFT + ((sz) * SPARC64_TTE_SIZE_SPREAD))

				#define SPARC64_TTE_GET_SIZE(tp) \
				(((tp)->tte_data >> SPARC64_TD_SIZE_SHIFT) & SPARC64_TD_SIZE_MASK)

				#define SPARC64_TTE_GET_PA(tp) \
				((tp)->tte_data & (SPARC64_TD_PA_MASK << SPARC64_TD_PA_SHIFT))

				struct sparc64_tte {
				uint64_t tte_vpn;
				uint64_t tte_data;
				};

				static __inline int
				sparc64_tte_match(struct sparc64_tte *tp, kvaddr_t va)
				{

				return (((tp->tte_data & SPARC64_TD_V) != 0) &&
				(tp->tte_vpn == SPARC64_TV_VPN(va, SPARC64_TTE_GET_SIZE(tp))));
				}

				#ifdef __sparc64__
				_Static_assert(PAGE_SHIFT == SPARC64_PAGE_SHIFT, "PAGE_SHIFT mismatch");
				_Static_assert(PAGE_SIZE == SPARC64_PAGE_SIZE, "PAGE_SIZE mismatch");
				_Static_assert(PAGE_MASK == SPARC64_PAGE_MASK, "PAGE_MASK mismatch");
				_Static_assert(VM_MIN_DIRECT_ADDRESS == SPARC64_MIN_DIRECT_ADDRESS,
				"VM_MIN_DIRECT_ADDRESS mismatch");
				_Static_assert(TLB_DIRECT_ADDRESS_BITS == SPARC64_DIRECT_ADDRESS_BITS,
				"TLB_DIRECT_ADDRESS_BITS mismatch");
				_Static_assert(TLB_DIRECT_ADDRESS_MASK == SPARC64_DIRECT_ADDRESS_MASK,
				"TLB_DIRECT_ADDRESS_MASK mismatch");
				_Static_assert(TTE_SHIFT == SPARC64_TTE_SHIFT, "TTE_SHIFT mismatch");
				_Static_assert(TD_SIZE_SHIFT == SPARC64_TD_SIZE_SHIFT,
				"TD_SIZE_SHIFT mismatch");
				_Static_assert(TD_PA_SHIFT == SPARC64_TD_PA_SHIFT,
				"TD_PA_SHIFT mismatch");
				_Static_assert(TD_SIZE_BITS == SPARC64_TD_SIZE_BITS, "TD_SIZE_BITS mismatch");
				_Static_assert(TD_PA_BITS == SPARC64_TD_PA_BITS, "TD_PA_BITS mismatch");
				_Static_assert(TD_SIZE_MASK == SPARC64_TD_SIZE_MASK, "TD_SIZE_MASK mismatch");
				_Static_assert(TD_PA_MASK == SPARC64_TD_PA_MASK, "TD_PA_MASK mismatch");
				_Static_assert(TD_V == SPARC64_TD_V, "TD_V mismatch");
				_Static_assert(TV_SIZE_BITS == SPARC64_TV_SIZE_BITS, "TV_SIZE_BITS mismatch");
				_Static_assert(TTE_SIZE_SPREAD == SPARC64_TTE_SIZE_SPREAD,
				"TTE_SIZE_SPREAD mismatch");
				#endif

				#endif /* !__KVM_SPARC64_H__ */