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1 | // ========== Copyright Header Begin ========================================== |
2 | // | |
3 | // OpenSPARC T2 Processor File: SS_Cpu.cc | |
4 | // Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. | |
5 | // DO NOT ALTER OR REMOVE COPYRIGHT NOTICES. | |
6 | // | |
7 | // The above named program is free software; you can redistribute it and/or | |
8 | // modify it under the terms of the GNU General Public | |
9 | // License version 2 as published by the Free Software Foundation. | |
10 | // | |
11 | // The above named program is distributed in the hope that it will be | |
12 | // useful, but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | // General Public License for more details. | |
15 | // | |
16 | // You should have received a copy of the GNU General Public | |
17 | // License along with this work; if not, write to the Free Software | |
18 | // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. | |
19 | // | |
20 | // ========== Copyright Header End ============================================ | |
21 | ||
22 | #include "SS_Cpu.h" | |
23 | #include "SS_Strand.h" | |
24 | #include "SS_Model.h" | |
25 | #include "SS_Signal.h" | |
26 | ||
27 | SS_Cpu::SS_Cpu( SS_Model& _model, const char* _name )/*{{{*/ | |
28 | : | |
29 | SS_Node(_model,_name), | |
30 | model(_model), | |
31 | strand_count(0) | |
32 | { | |
33 | clr_stepping(); | |
34 | } | |
35 | /*}}}*/ | |
36 | ||
37 | void SS_Cpu::flush( SS_Paddr pa )/*{{{*/ | |
38 | { | |
39 | for (uint_t i = 0; i < strand_count; i++) | |
40 | strand[i]->flush(pa); | |
41 | } | |
42 | /*}}}*/ | |
43 | void SS_Cpu::flush( SS_Strand* s, SS_Paddr pa, uint_t size )/*{{{*/ | |
44 | { | |
45 | SS_Signal::Type type; | |
46 | ||
47 | // Currently we support three sizes, 8b (sun sparc standard) | |
48 | // page flush (8k) and infinite (size == ~0). The page flush | |
49 | // and infinite flush (all decode caches) are handled with | |
50 | // the FLUSH_8K as that is flush all decode caches. | |
51 | ||
52 | if (size == 8) | |
53 | type = SS_Signal::FLUSH_8B; | |
54 | else if (size == 8192) | |
55 | type = SS_Signal::FLUSH_8K; | |
56 | else | |
57 | type = SS_Signal::FLUSH_ALL; | |
58 | ||
59 | for (uint_t i = 0; i < strand_count; i++) | |
60 | { | |
61 | if (is_stepping(i)) | |
62 | { | |
63 | SS_Signal* sgn = s->msg.make_signal(type); | |
64 | sgn->flush_pa = pa; | |
65 | strand[i]->post_signal(sgn); | |
66 | } | |
67 | } | |
68 | } | |
69 | /*}}}*/ | |
70 | void SS_Cpu::ras_flush( SS_Strand* requesting_strand, SS_Paddr pa, uint64_t size, SS_MemErrDetector::CacheType type )/*{{{*/ | |
71 | { | |
72 | for (uint_t i = 0; i < strand_count; i++) | |
73 | strand[i]->mem_err_detector.ras_flush(strand[i], requesting_strand, pa, size, type); | |
74 | } | |
75 | /*}}}*/ | |
76 | ||
77 | void SS_Cpu::snapshot( SS_SnapShot& ss )/*{{{*/ | |
78 | { | |
79 | char prefix[32]; | |
80 | get_name(prefix); | |
81 | ||
82 | // Before any snapshot is saved or loaded we ensure that the signal | |
83 | // queues are handled with first. That way we don't have to snapshot | |
84 | // those queues when we save and on load we don't have to restore | |
85 | // them. Note that this is functioanlly correct behaviour. | |
86 | ||
87 | for (uint_t i = 0; i < strand_count; i++) | |
88 | strand[i]->peek_signal(); | |
89 | ||
90 | uint_t flush_count = 0; // Leave here so snapshot is ok | |
91 | uint_t flush_strand = 0; // Leave here so snapshot is ok | |
92 | uint_t strand_count_ = 0; // Regenerated during restore | |
93 | uint_t strand_stepping_ = 0; // Regenerated during restore | |
94 | ||
95 | sprintf(ss.tag,"%s.strand_count",prefix); ss.val(&strand_count); | |
96 | sprintf(ss.tag,"%s.strand_stepping",prefix); ss.val(&strand_stepping[0]); | |
97 | if (ss.get_version() >= 4) | |
98 | { | |
99 | sprintf(ss.tag,"%s.strand_stepping.1",prefix); ss.val(&strand_stepping[1]); | |
100 | } | |
101 | sprintf(ss.tag,"%s.flush_strand",prefix); ss.val(&flush_strand); | |
102 | sprintf(ss.tag,"%s.flush_count",prefix); ss.val(&flush_count); | |
103 | } | |
104 | /*}}}*/ | |
105 | void SS_Cpu::ras_enable(char* cmd)/*{{{*/ | |
106 | { | |
107 | for (uint_t i = 0; i < strand_count; i++) | |
108 | { | |
109 | strand[i]->ras_enable(strand[i], cmd); | |
110 | } | |
111 | } | |
112 | /*}}}*/ |