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Diffstat (limited to 'src/gallium/drivers/freedreno/ir.h')
| -rw-r--r-- | src/gallium/drivers/freedreno/ir.h | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/src/gallium/drivers/freedreno/ir.h b/src/gallium/drivers/freedreno/ir.h new file mode 100644 index 00000000000..e8025446b3e --- /dev/null +++ b/src/gallium/drivers/freedreno/ir.h @@ -0,0 +1,243 @@ +/* + * Copyright (c) 2012 Rob Clark <robdclark@gmail.com> + * + * 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 (including the next + * paragraph) 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. + */ + +#ifndef IR_H_ +#define IR_H_ + +#include <stdint.h> +#include <stdbool.h> + +#include "instr.h" + +/* low level intermediate representation of an adreno shader program */ + +struct ir_shader; + +struct ir_shader * fd_asm_parse(const char *src); + +struct ir_shader_info { + uint16_t sizedwords; + int8_t max_reg; /* highest GPR # used by shader */ + uint8_t max_input_reg; + uint64_t regs_written; +}; + +struct ir_register { + enum { + IR_REG_CONST = 0x1, + IR_REG_EXPORT = 0x2, + IR_REG_NEGATE = 0x4, + IR_REG_ABS = 0x8, + } flags; + int num; + char *swizzle; +}; + +enum ir_pred { + IR_PRED_NONE = 0, + IR_PRED_EQ = 1, + IR_PRED_NE = 2, +}; + +struct ir_instruction { + struct ir_shader *shader; + enum { + IR_FETCH, + IR_ALU, + } instr_type; + enum ir_pred pred; + int sync; + unsigned regs_count; + struct ir_register *regs[5]; + union { + /* FETCH specific: */ + struct { + instr_fetch_opc_t opc; + unsigned const_idx; + /* maybe vertex fetch specific: */ + unsigned const_idx_sel; + enum sq_surfaceformat fmt; + bool is_signed : 1; + bool is_normalized : 1; + uint32_t stride; + uint32_t offset; + } fetch; + /* ALU specific: */ + struct { + instr_vector_opc_t vector_opc; + instr_scalar_opc_t scalar_opc; + bool vector_clamp : 1; + bool scalar_clamp : 1; + } alu; + }; +}; + +struct ir_cf { + struct ir_shader *shader; + instr_cf_opc_t cf_type; + + union { + /* EXEC/EXEC_END specific: */ + struct { + unsigned instrs_count; + struct ir_instruction *instrs[6]; + uint32_t addr, cnt, sequence; + } exec; + /* ALLOC specific: */ + struct { + instr_alloc_type_t type; /* SQ_POSITION or SQ_PARAMETER_PIXEL */ + int size; + } alloc; + }; +}; + +/* somewhat arbitrary limits.. */ +#define MAX_ATTRIBUTES 32 +#define MAX_CONSTS 32 +#define MAX_SAMPLERS 32 +#define MAX_UNIFORMS 32 +#define MAX_VARYINGS 32 + +struct ir_attribute { + const char *name; + int rstart; /* first register */ + int num; /* number of registers */ +}; + +struct ir_const { + float val[4]; + int cstart; /* first const register */ +}; + +struct ir_sampler { + const char *name; + int idx; +}; + +struct ir_uniform { + const char *name; + int cstart; /* first const register */ + int num; /* number of const registers */ +}; + +struct ir_varying { + const char *name; + int rstart; /* first register */ + int num; /* number of registers */ +}; + +struct ir_shader { + unsigned cfs_count; + struct ir_cf *cfs[0x56]; + uint32_t heap[100 * 4096]; + unsigned heap_idx; + + enum ir_pred pred; /* pred inherited by newly created instrs */ + + /* @ headers: */ + uint32_t attributes_count; + struct ir_attribute *attributes[MAX_ATTRIBUTES]; + + uint32_t consts_count; + struct ir_const *consts[MAX_CONSTS]; + + uint32_t samplers_count; + struct ir_sampler *samplers[MAX_SAMPLERS]; + + uint32_t uniforms_count; + struct ir_uniform *uniforms[MAX_UNIFORMS]; + + uint32_t varyings_count; + struct ir_varying *varyings[MAX_VARYINGS]; + +}; + +struct ir_shader * ir_shader_create(void); +void ir_shader_destroy(struct ir_shader *shader); +void * ir_shader_assemble(struct ir_shader *shader, + struct ir_shader_info *info); + +struct ir_attribute * ir_attribute_create(struct ir_shader *shader, + int rstart, int num, const char *name); +struct ir_const * ir_const_create(struct ir_shader *shader, + int cstart, float v0, float v1, float v2, float v3); +struct ir_sampler * ir_sampler_create(struct ir_shader *shader, + int idx, const char *name); +struct ir_uniform * ir_uniform_create(struct ir_shader *shader, + int cstart, int num, const char *name); +struct ir_varying * ir_varying_create(struct ir_shader *shader, + int rstart, int num, const char *name); + +struct ir_cf * ir_cf_create(struct ir_shader *shader, instr_cf_opc_t cf_type); + +struct ir_instruction * ir_instr_create(struct ir_cf *cf, int instr_type); + +struct ir_register * ir_reg_create(struct ir_instruction *instr, + int num, const char *swizzle, int flags); + +/* some helper fxns: */ + +static inline struct ir_cf * +ir_cf_create_alloc(struct ir_shader *shader, instr_alloc_type_t type, int size) +{ + struct ir_cf *cf = ir_cf_create(shader, ALLOC); + if (!cf) + return cf; + cf->alloc.type = type; + cf->alloc.size = size; + return cf; +} +static inline struct ir_instruction * +ir_instr_create_alu(struct ir_cf *cf, instr_vector_opc_t vop, instr_scalar_opc_t sop) +{ + struct ir_instruction *instr = ir_instr_create(cf, IR_ALU); + if (!instr) + return instr; + instr->alu.vector_opc = vop; + instr->alu.scalar_opc = sop; + return instr; +} +static inline struct ir_instruction * +ir_instr_create_vtx_fetch(struct ir_cf *cf, int ci, int cis, + enum sq_surfaceformat fmt, bool is_signed, int stride) +{ + struct ir_instruction *instr = instr = ir_instr_create(cf, IR_FETCH); + instr->fetch.opc = VTX_FETCH; + instr->fetch.const_idx = ci; + instr->fetch.const_idx_sel = cis; + instr->fetch.fmt = fmt; + instr->fetch.is_signed = is_signed; + instr->fetch.stride = stride; + return instr; +} +static inline struct ir_instruction * +ir_instr_create_tex_fetch(struct ir_cf *cf, int ci) +{ + struct ir_instruction *instr = instr = ir_instr_create(cf, IR_FETCH); + instr->fetch.opc = TEX_FETCH; + instr->fetch.const_idx = ci; + return instr; +} + + +#endif /* IR_H_ */ |