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1 /*
2  * Copyright 2011 Christoph Bumiller
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  */
22 
23 #include "codegen/nv50_ir_target.h"
24 
25 namespace nv50_ir {
26 
27 #define NVC0_BUILTIN_DIV_U32 0
28 #define NVC0_BUILTIN_DIV_S32 1
29 #define NVC0_BUILTIN_RCP_F64 2
30 #define NVC0_BUILTIN_RSQ_F64 3
31 
32 #define NVC0_BUILTIN_COUNT 4
33 
34 class TargetNV50 : public Target
35 {
36 public:
37    TargetNV50(unsigned int chipset);
38 
39    virtual CodeEmitter *getCodeEmitter(Program::Type);
40 
41    virtual bool runLegalizePass(Program *, CGStage stage) const;
42 
43    virtual void getBuiltinCode(const uint32_t **code, uint32_t *size) const;
44 
45    virtual void parseDriverInfo(const struct nv50_ir_prog_info *);
46 
47    virtual bool insnCanLoad(const Instruction *insn, int s,
48                             const Instruction *ld) const;
49    virtual bool insnCanLoadOffset(const Instruction *insn, int s,
50                                   int offset) const;
51    virtual bool isOpSupported(operation, DataType) const;
52    virtual bool isAccessSupported(DataFile, DataType) const;
53    virtual bool isModSupported(const Instruction *, int s, Modifier) const;
54    virtual bool isSatSupported(const Instruction *) const;
55    virtual bool mayPredicate(const Instruction *, const Value *) const;
56 
57    virtual int getLatency(const Instruction *) const;
58    virtual int getThroughput(const Instruction *) const;
59 
60    virtual unsigned int getFileSize(DataFile) const;
61    virtual unsigned int getFileUnit(DataFile) const;
62 
63    virtual uint32_t getSVAddress(DataFile shaderFile, const Symbol *sv) const;
64 
65    uint32_t getBuiltinOffset(int builtin) const;
66 
67 private:
68    void initOpInfo();
69 
70    uint16_t sysvalLocation[SV_LAST + 1];
71    uint8_t wposMask;
72 };
73 
74 } // namespace nv50_ir
75