mmapped_ipr.hh (8105:906864dd0937) mmapped_ipr.hh (8768:314eb1e2fa94)
1/*
2 * Copyright (c) 2007-2008 The Hewlett-Packard Development Company
3 * All rights reserved.
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software

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42
43/**
44 * @file
45 *
46 * ISA-specific helper functions for memory mapped IPR accesses.
47 */
48
49#include "arch/x86/regs/misc.hh"
1/*
2 * Copyright (c) 2007-2008 The Hewlett-Packard Development Company
3 * All rights reserved.
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software

--- 33 unchanged lines hidden (view full) ---

42
43/**
44 * @file
45 *
46 * ISA-specific helper functions for memory mapped IPR accesses.
47 */
48
49#include "arch/x86/regs/misc.hh"
50#include "config/full_system.hh"
51#include "cpu/base.hh"
52#include "cpu/thread_context.hh"
53#include "mem/packet.hh"
54
55namespace X86ISA
56{
57 inline Tick
58 handleIprRead(ThreadContext *xc, Packet *pkt)
59 {
50#include "cpu/base.hh"
51#include "cpu/thread_context.hh"
52#include "mem/packet.hh"
53
54namespace X86ISA
55{
56 inline Tick
57 handleIprRead(ThreadContext *xc, Packet *pkt)
58 {
60#if !FULL_SYSTEM
61 panic("Shouldn't have a memory mapped register in SE\n");
62#else
63 Addr offset = pkt->getAddr() & mask(3);
64 MiscRegIndex index = (MiscRegIndex)(pkt->getAddr() / sizeof(MiscReg));
65 MiscReg data = htog(xc->readMiscReg(index));
66 // Make sure we don't trot off the end of data.
67 assert(offset + pkt->getSize() <= sizeof(MiscReg));
68 pkt->setData(((uint8_t *)&data) + offset);
59 Addr offset = pkt->getAddr() & mask(3);
60 MiscRegIndex index = (MiscRegIndex)(pkt->getAddr() / sizeof(MiscReg));
61 MiscReg data = htog(xc->readMiscReg(index));
62 // Make sure we don't trot off the end of data.
63 assert(offset + pkt->getSize() <= sizeof(MiscReg));
64 pkt->setData(((uint8_t *)&data) + offset);
69#endif
70 return xc->getCpuPtr()->ticks(1);
71 }
72
73 inline Tick
74 handleIprWrite(ThreadContext *xc, Packet *pkt)
75 {
65 return xc->getCpuPtr()->ticks(1);
66 }
67
68 inline Tick
69 handleIprWrite(ThreadContext *xc, Packet *pkt)
70 {
76#if !FULL_SYSTEM
77 panic("Shouldn't have a memory mapped register in SE\n");
78#else
79 Addr offset = pkt->getAddr() & mask(3);
80 MiscRegIndex index = (MiscRegIndex)(pkt->getAddr() / sizeof(MiscReg));
81 MiscReg data;
82 data = htog(xc->readMiscRegNoEffect(index));
83 // Make sure we don't trot off the end of data.
84 assert(offset + pkt->getSize() <= sizeof(MiscReg));
85 pkt->writeData(((uint8_t *)&data) + offset);
86 xc->setMiscReg(index, gtoh(data));
71 Addr offset = pkt->getAddr() & mask(3);
72 MiscRegIndex index = (MiscRegIndex)(pkt->getAddr() / sizeof(MiscReg));
73 MiscReg data;
74 data = htog(xc->readMiscRegNoEffect(index));
75 // Make sure we don't trot off the end of data.
76 assert(offset + pkt->getSize() <= sizeof(MiscReg));
77 pkt->writeData(((uint8_t *)&data) + offset);
78 xc->setMiscReg(index, gtoh(data));
87#endif
88 return xc->getCpuPtr()->ticks(1);
89 }
90};
91
92#endif // __ARCH_X86_MMAPPEDIPR_HH__
79 return xc->getCpuPtr()->ticks(1);
80 }
81};
82
83#endif // __ARCH_X86_MMAPPEDIPR_HH__