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* Copyright 2011 Christoph Bumiller
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
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* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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#ifndef __NV50_IR_DRIVER_H__
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#define __NV50_IR_DRIVER_H__
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#include "pipe/p_shader_tokens.h"
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#include "tgsi/tgsi_util.h"
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#include "tgsi/tgsi_parse.h"
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#include "tgsi/tgsi_scan.h"
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* This struct constitutes linkage information in TGSI terminology.
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* It is created by the code generator and handed to the pipe driver
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* for input/output slot assignment.
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struct nv50_ir_varying
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uint8_t slot[4]; /* native slots for xyzw (addresses in 32-bit words) */
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unsigned mask : 4; /* vec4 mask */
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unsigned linear : 1; /* linearly interpolated if true (and not flat) */
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unsigned sc : 1; /* special colour interpolation mode (SHADE_MODEL) */
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unsigned centroid : 1;
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unsigned patch : 1; /* patch constant value */
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unsigned regular : 1; /* driver-specific meaning (e.g. input in sreg) */
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unsigned input : 1; /* indicates direction of system values */
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unsigned oread : 1; /* true if output is read from parallel TCP */
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ubyte id; /* TGSI register index */
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ubyte sn; /* TGSI semantic name */
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ubyte si; /* TGSI semantic index */
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#define NV50_PROGRAM_IR_TGSI 0
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#define NV50_PROGRAM_IR_SM4 1
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#define NV50_PROGRAM_IR_GLSL 2
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#define NV50_PROGRAM_IR_LLVM 3
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# define NV50_IR_DEBUG_BASIC (1 << 0)
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# define NV50_IR_DEBUG_VERBOSE (2 << 0)
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# define NV50_IR_DEBUG_REG_ALLOC (1 << 2)
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# define NV50_IR_DEBUG_BASIC 0
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# define NV50_IR_DEBUG_VERBOSE 0
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# define NV50_IR_DEBUG_REG_ALLOC 0
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#define NV50_SEMANTIC_CLIPDISTANCE (TGSI_SEMANTIC_COUNT + 0)
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#define NV50_SEMANTIC_TEXCOORD (TGSI_SEMANTIC_COUNT + 1)
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#define NV50_SEMANTIC_POINTCOORD (TGSI_SEMANTIC_COUNT + 2)
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#define NV50_SEMANTIC_VIEWPORTINDEX (TGSI_SEMANTIC_COUNT + 4)
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#define NV50_SEMANTIC_LAYER (TGSI_SEMANTIC_COUNT + 5)
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#define NV50_SEMANTIC_INVOCATIONID (TGSI_SEMANTIC_COUNT + 6)
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#define NV50_SEMANTIC_TESSFACTOR (TGSI_SEMANTIC_COUNT + 7)
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#define NV50_SEMANTIC_TESSCOORD (TGSI_SEMANTIC_COUNT + 8)
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#define NV50_SEMANTIC_SAMPLEMASK (TGSI_SEMANTIC_COUNT + 9)
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#define NV50_SEMANTIC_COUNT (TGSI_SEMANTIC_COUNT + 10)
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#define NV50_TESS_PART_FRACT_ODD 0
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#define NV50_TESS_PART_FRACT_EVEN 1
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#define NV50_TESS_PART_POW2 2
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#define NV50_TESS_PART_INTEGER 3
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#define NV50_PRIM_PATCHES PIPE_PRIM_MAX
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struct nv50_ir_prog_info
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uint16_t target; /* chipset (0x50, 0x84, 0xc0, ...) */
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uint8_t type; /* PIPE_SHADER */
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uint8_t optLevel; /* optimization level (0 to 3) */
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int16_t maxGPR; /* may be -1 if none used */
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uint32_t tlsSpace; /* required local memory per thread */
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uint8_t sourceRep; /* NV50_PROGRAM_IR */
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struct nv50_ir_varying sv[PIPE_MAX_SHADER_INPUTS];
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struct nv50_ir_varying in[PIPE_MAX_SHADER_INPUTS];
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struct nv50_ir_varying out[PIPE_MAX_SHADER_OUTPUTS];
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uint8_t numPatchConstants; /* also included in numInputs/numOutputs */
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uint32_t *buf; /* for IMMEDIATE_ARRAY */
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uint16_t bufSize; /* size of immediate array */
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uint16_t count; /* count of inline immediates */
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uint32_t *data; /* inline immediate data */
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uint8_t *type; /* for each vec4 (128 bit) */
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uint32_t inputMask[4]; /* mask of attributes read (1 bit per scalar) */
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uint8_t inputPatchSize;
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uint8_t outputPatchSize;
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uint8_t partitioning; /* PIPE_TESS_PART */
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int8_t winding; /* +1 (clockwise) / -1 (counter-clockwise) */
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uint8_t domain; /* PIPE_PRIM_{QUADS,TRIANGLES,LINES} */
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uint8_t outputPrim; /* PIPE_PRIM_{TRIANGLES,LINES,POINTS} */
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unsigned instanceCount;
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unsigned maxVertices;
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unsigned numColourResults;
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boolean earlyFragTests;
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boolean separateFragData;
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uint8_t clipDistance; /* index of first clip distance output */
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uint8_t clipDistanceMask; /* mask of clip distances defined */
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uint8_t cullDistanceMask; /* clip distance mode (1 bit per output) */
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int8_t genUserClip; /* request user clip planes for ClipVertex */
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uint8_t pointSize; /* output index for PointSize */
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uint8_t vertexId; /* system value index of VertexID */
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uint8_t fragDepth; /* output index of FragDepth */
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uint8_t sampleMask; /* output index of SampleMask */
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uint8_t backFaceColor[2]; /* input/output indices of back face colour */
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uint8_t globalAccess; /* 1 for read, 2 for wr, 3 for rw */
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/* driver callback to assign input/output locations */
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int (*assignSlots)(struct nv50_ir_prog_info *);
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extern int nv50_ir_generate_code(struct nv50_ir_prog_info *);
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extern void nv50_ir_relocate_code(void *relocData, uint32_t *code,
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/* obtain code that will be shared among programs */
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extern void nv50_ir_get_target_library(uint32_t chipset,
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const uint32_t **code, uint32_t *size);
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#endif // __NV50_IR_DRIVER_H__