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/*
* Copyright 2011 Christoph Bumiller
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#include "codegen/nv50_ir.h"
#include "codegen/nv50_ir_build_util.h"
/* On nvc0, surface info is obtained via the surface binding points passed
* to the SULD/SUST instructions.
* On nve4, surface info is stored in c[] and is used by various special
* instructions, e.g. for clamping coordinates or generating an address.
* They couldn't just have added an equivalent to TIC now, couldn't they ?
*/
#define NVC0_SU_INFO_ADDR 0x00
#define NVC0_SU_INFO_FMT 0x04
#define NVC0_SU_INFO_DIM_X 0x08
#define NVC0_SU_INFO_PITCH 0x0c
#define NVC0_SU_INFO_DIM_Y 0x10
#define NVC0_SU_INFO_ARRAY 0x14
#define NVC0_SU_INFO_DIM_Z 0x18
#define NVC0_SU_INFO_UNK1C 0x1c
#define NVC0_SU_INFO_WIDTH 0x20
#define NVC0_SU_INFO_HEIGHT 0x24
#define NVC0_SU_INFO_DEPTH 0x28
#define NVC0_SU_INFO_TARGET 0x2c
#define NVC0_SU_INFO_BSIZE 0x30
#define NVC0_SU_INFO_RAW_X 0x34
#define NVC0_SU_INFO_MS_X 0x38
#define NVC0_SU_INFO_MS_Y 0x3c
#define NVC0_SU_INFO__STRIDE 0x40
#define NVC0_SU_INFO_DIM(i) (0x08 + (i) * 8)
#define NVC0_SU_INFO_SIZE(i) (0x20 + (i) * 4)
#define NVC0_SU_INFO_MS(i) (0x38 + (i) * 4)
namespace nv50_ir {
class NVC0LegalizeSSA : public Pass
{
private:
virtual bool visit(BasicBlock *);
virtual bool visit(Function *);
// we want to insert calls to the builtin library only after optimization
void handleDIV(Instruction *); // integer division, modulus
void handleRCPRSQLib(Instruction *, Value *[]);
void handleRCPRSQ(Instruction *); // double precision float recip/rsqrt
void handleFTZ(Instruction *);
void handleSET(CmpInstruction *);
void handleTEXLOD(TexInstruction *);
void handleShift(Instruction *);
protected:
BuildUtil bld;
};
class NVC0LegalizePostRA : public Pass
{
public:
NVC0LegalizePostRA(const Program *);
private:
virtual bool visit(Function *);
virtual bool visit(BasicBlock *);
void replaceCvt(Instruction *);
void replaceZero(Instruction *);
bool tryReplaceContWithBra(BasicBlock *);
void propagateJoin(BasicBlock *);
struct TexUse
{
TexUse(Instruction *use, const Instruction *tex, bool after)
: insn(use), tex(tex), after(after), level(-1) { }
Instruction *insn;
const Instruction *tex; // or split / mov
bool after;
int level;
};
struct Limits
{
Limits() { }
Limits(int min, int max) : min(min), max(max) { }
int min, max;
};
bool insertTextureBarriers(Function *);
inline bool insnDominatedBy(const Instruction *, const Instruction *) const;
void findFirstUses(Instruction *texi, std::list<TexUse> &uses);
void findFirstUsesBB(int minGPR, int maxGPR, Instruction *start,
const Instruction *texi, std::list<TexUse> &uses,
unordered_set<const BasicBlock *> &visited);
void addTexUse(std::list<TexUse>&, Instruction *, const Instruction *);
const Instruction *recurseDef(const Instruction *);
private:
LValue *rZero;
LValue *carry;
LValue *pOne;
const bool needTexBar;
};
class NVC0LoweringPass : public Pass
{
public:
NVC0LoweringPass(Program *);
protected:
bool handleRDSV(Instruction *);
bool handleWRSV(Instruction *);
bool handleEXPORT(Instruction *);
bool handleOUT(Instruction *);
bool handleDIV(Instruction *);
bool handleMOD(Instruction *);
bool handleSQRT(Instruction *);
bool handlePOW(Instruction *);
bool handleTEX(TexInstruction *);
bool handleTXD(TexInstruction *);
bool handleTXQ(TexInstruction *);
virtual bool handleManualTXD(TexInstruction *);
bool handleTXLQ(TexInstruction *);
bool handleSUQ(TexInstruction *);
bool handleATOM(Instruction *);
bool handleCasExch(Instruction *, bool needCctl);
void handleSurfaceOpGM107(TexInstruction *);
void handleSurfaceOpNVE4(TexInstruction *);
void handleSurfaceOpNVC0(TexInstruction *);
void handleSharedATOM(Instruction *);
void handleSharedATOMNVE4(Instruction *);
void handleLDST(Instruction *);
bool handleBUFQ(Instruction *);
void handlePIXLD(Instruction *);
void checkPredicate(Instruction *);
Value *loadMsAdjInfo32(TexInstruction::Target targ, uint32_t index, int slot, Value *ind, bool bindless);
virtual bool visit(Instruction *);
private:
virtual bool visit(Function *);
virtual bool visit(BasicBlock *);
void readTessCoord(LValue *dst, int c);
Value *loadResInfo32(Value *ptr, uint32_t off, uint16_t base);
Value *loadResInfo64(Value *ptr, uint32_t off, uint16_t base);
Value *loadResLength32(Value *ptr, uint32_t off, uint16_t base);
Value *loadSuInfo32(Value *ptr, int slot, uint32_t off, bool bindless);
Value *loadBufInfo64(Value *ptr, uint32_t off);
Value *loadBufLength32(Value *ptr, uint32_t off);
Value *loadUboInfo64(Value *ptr, uint32_t off);
Value *loadUboLength32(Value *ptr, uint32_t off);
Value *loadMsInfo32(Value *ptr, uint32_t off);
void adjustCoordinatesMS(TexInstruction *);
TexInstruction *processSurfaceCoordsGM107(TexInstruction *, Instruction *[4]);
void processSurfaceCoordsNVE4(TexInstruction *);
void processSurfaceCoordsNVC0(TexInstruction *);
void convertSurfaceFormat(TexInstruction *, Instruction **);
void insertOOBSurfaceOpResult(TexInstruction *);
Value *calculateSampleOffset(Value *sampleID);
protected:
Value *loadTexHandle(Value *ptr, unsigned int slot);
BuildUtil bld;
private:
const Target *const targ;
LValue *gpEmitAddress;
};
} // namespace nv50_ir
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