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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 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.
*/
#ifndef __NV50_IR_DRIVER_H__
#define __NV50_IR_DRIVER_H__
#include "pipe/p_shader_tokens.h"
#include "tgsi/tgsi_util.h"
#include "tgsi/tgsi_parse.h"
#include "tgsi/tgsi_scan.h"
/*
* This struct constitutes linkage information in TGSI terminology.
*
* It is created by the code generator and handed to the pipe driver
* for input/output slot assignment.
*/
struct nv50_ir_varying
{
uint8_t slot[4]; /* native slots for xyzw (addresses in 32-bit words) */
unsigned mask : 4; /* vec4 mask */
unsigned linear : 1; /* linearly interpolated if true (and not flat) */
unsigned flat : 1;
unsigned sc : 1; /* special colour interpolation mode (SHADE_MODEL) */
unsigned centroid : 1;
unsigned patch : 1; /* patch constant value */
unsigned regular : 1; /* driver-specific meaning (e.g. input in sreg) */
unsigned input : 1; /* indicates direction of system values */
unsigned oread : 1; /* true if output is read from parallel TCP */
ubyte id; /* TGSI register index */
ubyte sn; /* TGSI semantic name */
ubyte si; /* TGSI semantic index */
};
#define NV50_PROGRAM_IR_TGSI 0
#define NV50_PROGRAM_IR_SM4 1
#define NV50_PROGRAM_IR_GLSL 2
#define NV50_PROGRAM_IR_LLVM 3
#ifdef DEBUG
# define NV50_IR_DEBUG_BASIC (1 << 0)
# define NV50_IR_DEBUG_VERBOSE (2 << 0)
# define NV50_IR_DEBUG_REG_ALLOC (1 << 2)
#else
# define NV50_IR_DEBUG_BASIC 0
# define NV50_IR_DEBUG_VERBOSE 0
# define NV50_IR_DEBUG_REG_ALLOC 0
#endif
#define NV50_SEMANTIC_CLIPDISTANCE (TGSI_SEMANTIC_COUNT + 0)
#define NV50_SEMANTIC_TEXCOORD (TGSI_SEMANTIC_COUNT + 1)
#define NV50_SEMANTIC_POINTCOORD (TGSI_SEMANTIC_COUNT + 2)
#define NV50_SEMANTIC_VIEWPORTINDEX (TGSI_SEMANTIC_COUNT + 4)
#define NV50_SEMANTIC_LAYER (TGSI_SEMANTIC_COUNT + 5)
#define NV50_SEMANTIC_INVOCATIONID (TGSI_SEMANTIC_COUNT + 6)
#define NV50_SEMANTIC_TESSFACTOR (TGSI_SEMANTIC_COUNT + 7)
#define NV50_SEMANTIC_TESSCOORD (TGSI_SEMANTIC_COUNT + 8)
#define NV50_SEMANTIC_SAMPLEMASK (TGSI_SEMANTIC_COUNT + 9)
#define NV50_SEMANTIC_COUNT (TGSI_SEMANTIC_COUNT + 10)
#define NV50_TESS_PART_FRACT_ODD 0
#define NV50_TESS_PART_FRACT_EVEN 1
#define NV50_TESS_PART_POW2 2
#define NV50_TESS_PART_INTEGER 3
#define NV50_PRIM_PATCHES PIPE_PRIM_MAX
struct nv50_ir_prog_symbol
{
uint32_t label;
uint32_t offset;
};
struct nv50_ir_prog_info
{
uint16_t target; /* chipset (0x50, 0x84, 0xc0, ...) */
uint8_t type; /* PIPE_SHADER */
uint8_t optLevel; /* optimization level (0 to 3) */
uint8_t dbgFlags;
struct {
int16_t maxGPR; /* may be -1 if none used */
int16_t maxOutput;
uint32_t tlsSpace; /* required local memory per thread */
uint32_t *code;
uint32_t codeSize;
uint8_t sourceRep; /* NV50_PROGRAM_IR */
const void *source;
void *relocData;
struct nv50_ir_prog_symbol *syms;
uint16_t numSyms;
} bin;
struct nv50_ir_varying sv[PIPE_MAX_SHADER_INPUTS];
struct nv50_ir_varying in[PIPE_MAX_SHADER_INPUTS];
struct nv50_ir_varying out[PIPE_MAX_SHADER_OUTPUTS];
uint8_t numInputs;
uint8_t numOutputs;
uint8_t numPatchConstants; /* also included in numInputs/numOutputs */
uint8_t numSysVals;
struct {
uint32_t *buf; /* for IMMEDIATE_ARRAY */
uint16_t bufSize; /* size of immediate array */
uint16_t count; /* count of inline immediates */
uint32_t *data; /* inline immediate data */
uint8_t *type; /* for each vec4 (128 bit) */
} immd;
union {
struct {
uint32_t inputMask[4]; /* mask of attributes read (1 bit per scalar) */
} vp;
struct {
uint8_t inputPatchSize;
uint8_t outputPatchSize;
uint8_t partitioning; /* PIPE_TESS_PART */
int8_t winding; /* +1 (clockwise) / -1 (counter-clockwise) */
uint8_t domain; /* PIPE_PRIM_{QUADS,TRIANGLES,LINES} */
uint8_t outputPrim; /* PIPE_PRIM_{TRIANGLES,LINES,POINTS} */
} tp;
struct {
uint8_t inputPrim;
uint8_t outputPrim;
unsigned instanceCount;
unsigned maxVertices;
} gp;
struct {
unsigned numColourResults;
boolean writesDepth;
boolean earlyFragTests;
boolean separateFragData;
boolean usesDiscard;
} fp;
} prop;
struct {
uint8_t clipDistance; /* index of first clip distance output */
uint8_t clipDistanceMask; /* mask of clip distances defined */
uint8_t cullDistanceMask; /* clip distance mode (1 bit per output) */
int8_t genUserClip; /* request user clip planes for ClipVertex */
uint16_t ucpBase; /* base address for UCPs */
uint8_t ucpBinding; /* constant buffer index of UCP data */
uint8_t pointSize; /* output index for PointSize */
uint8_t instanceId; /* system value index of InstanceID */
uint8_t vertexId; /* system value index of VertexID */
uint8_t edgeFlagIn;
uint8_t edgeFlagOut;
uint8_t fragDepth; /* output index of FragDepth */
uint8_t sampleMask; /* output index of SampleMask */
uint8_t backFaceColor[2]; /* input/output indices of back face colour */
uint8_t globalAccess; /* 1 for read, 2 for wr, 3 for rw */
} io;
/* driver callback to assign input/output locations */
int (*assignSlots)(struct nv50_ir_prog_info *);
void *driverPriv;
};
#ifdef __cplusplus
extern "C" {
#endif
extern int nv50_ir_generate_code(struct nv50_ir_prog_info *);
extern void nv50_ir_relocate_code(void *relocData, uint32_t *code,
uint32_t codePos,
uint32_t libPos,
uint32_t dataPos);
/* obtain code that will be shared among programs */
extern void nv50_ir_get_target_library(uint32_t chipset,
const uint32_t **code, uint32_t *size);
#ifdef __cplusplus
}
#endif
#endif // __NV50_IR_DRIVER_H__
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