src/gallium/drivers/r600/r600_asm.h

   1 /*
   2  * Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
   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  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  */
  23 #ifndef R600_ASM_H
  24 #define R600_ASM_H
  25
  26 #include "r600_pipe.h"
  27
  28 struct r600_bytecode_alu_src {
  29         unsigned                        sel;
  30         unsigned                        chan;
  31         unsigned                        neg;
  32         unsigned                        abs;
  33         unsigned                        rel;
  34         unsigned                        kc_bank;
  35         uint32_t                        value;
  36 };
  37
  38 struct r600_bytecode_alu_dst {
  39         unsigned                        sel;
  40         unsigned                        chan;
  41         unsigned                        clamp;
  42         unsigned                        write;
  43         unsigned                        rel;
  44 };
  45
  46 struct r600_bytecode_alu {
  47         struct list_head                list;
  48         struct r600_bytecode_alu_src            src[3];
  49         struct r600_bytecode_alu_dst            dst;
  50         unsigned                        inst;
  51         unsigned                        last;
  52         unsigned                        is_op3;
  53         unsigned                        execute_mask;
  54         unsigned                        update_pred;
  55         unsigned                        pred_sel;
  56         unsigned                        bank_swizzle;
  57         unsigned                        bank_swizzle_force;
  58         unsigned                        omod;
  59         unsigned                        index_mode;
  60 };
  61
  62 struct r600_bytecode_tex {
  63         struct list_head                list;
  64         unsigned                        inst;
  65         unsigned                        inst_mod;
  66         unsigned                        resource_id;
  67         unsigned                        src_gpr;
  68         unsigned                        src_rel;
  69         unsigned                        dst_gpr;
  70         unsigned                        dst_rel;
  71         unsigned                        dst_sel_x;
  72         unsigned                        dst_sel_y;
  73         unsigned                        dst_sel_z;
  74         unsigned                        dst_sel_w;
  75         unsigned                        lod_bias;
  76         unsigned                        coord_type_x;
  77         unsigned                        coord_type_y;
  78         unsigned                        coord_type_z;
  79         unsigned                        coord_type_w;
  80         int                             offset_x;
  81         int                             offset_y;
  82         int                             offset_z;
  83         unsigned                        sampler_id;
  84         unsigned                        src_sel_x;
  85         unsigned                        src_sel_y;
  86         unsigned                        src_sel_z;
  87         unsigned                        src_sel_w;
  88 };
  89
  90 struct r600_bytecode_vtx {
  91         struct list_head                list;
  92         unsigned                        inst;
  93         unsigned                        fetch_type;
  94         unsigned                        buffer_id;
  95         unsigned                        src_gpr;
  96         unsigned                        src_sel_x;
  97         unsigned                        mega_fetch_count;
  98         unsigned                        dst_gpr;
  99         unsigned                        dst_sel_x;
 100         unsigned                        dst_sel_y;
 101         unsigned                        dst_sel_z;
 102         unsigned                        dst_sel_w;
 103         unsigned                        use_const_fields;
 104         unsigned                        data_format;
 105         unsigned                        num_format_all;
 106         unsigned                        format_comp_all;
 107         unsigned                        srf_mode_all;
 108         unsigned                        offset;
 109         unsigned                        endian;
 110 };
 111
 112 struct r600_bytecode_output {
 113         unsigned                        array_base;
 114         unsigned                        array_size;
 115         unsigned                        comp_mask;
 116         unsigned                        type;
 117         unsigned                        end_of_program;
 118
 119         /* CF_INST. This is already bit-shifted and only needs to be or'd for bytecode. */
 120         unsigned                        inst;
 121
 122         unsigned                        elem_size;
 123         unsigned                        gpr;
 124         unsigned                        swizzle_x;
 125         unsigned                        swizzle_y;
 126         unsigned                        swizzle_z;
 127         unsigned                        swizzle_w;
 128         unsigned                        burst_count;
 129         unsigned                        barrier;
 130 };
 131
 132 struct r600_bytecode_kcache {
 133         unsigned                        bank;
 134         unsigned                        mode;
 135         unsigned                        addr;
 136 };
 137
 138 /* A value of CF_NATIVE in r600_bytecode_cf::inst means that this instruction
 139  * has already been encoded, and the encoding has been stored in
 140  * r600_bytecode::isa.  This is used by the LLVM backend to emit CF instructions
 141  * e.g. RAT_WRITE_* that can't be properly represented by struct
 142  * r600_bytecode_cf.
 143  */
 144 #define CF_NATIVE ~0
 145
 146 struct r600_bytecode_cf {
 147         struct list_head                list;
 148
 149         /* CF_INST. This is already bit-shifted and only needs to be or'd for bytecode. */
 150         unsigned                        inst;
 151
 152         unsigned                        addr;
 153         unsigned                        ndw;
 154         unsigned                        id;
 155         unsigned                        cond;
 156         unsigned                        pop_count;
 157         unsigned                        cf_addr; /* control flow addr */
 158         struct r600_bytecode_kcache             kcache[4];
 159         unsigned                        r6xx_uses_waterfall;
 160         unsigned                        eg_alu_extended;
 161         struct list_head                alu;
 162         struct list_head                tex;
 163         struct list_head                vtx;
 164         struct r600_bytecode_output             output;
 165         struct r600_bytecode_alu                *curr_bs_head;
 166         struct r600_bytecode_alu                *prev_bs_head;
 167         struct r600_bytecode_alu                *prev2_bs_head;
 168         unsigned isa[2];
 169 };
 170
 171 #define FC_NONE                         0
 172 #define FC_IF                           1
 173 #define FC_LOOP                         2
 174 #define FC_REP                          3
 175 #define FC_PUSH_VPM                     4
 176 #define FC_PUSH_WQM                     5
 177
 178 struct r600_cf_stack_entry {
 179         int                             type;
 180         struct r600_bytecode_cf         *start;
 181         struct r600_bytecode_cf         **mid; /* used to store the else point */
 182         int                             num_mid;
 183 };
 184
 185 #define SQ_MAX_CALL_DEPTH 0x00000020
 186 struct r600_cf_callstack {
 187         unsigned                        fc_sp_before_entry;
 188         int                             sub_desc_index;
 189         int                             current;
 190         int                             max;
 191 };
 192
 193 #define AR_HANDLE_NORMAL 0
 194 #define AR_HANDLE_RV6XX 1 /* except RV670 */
 195
 196
 197 struct r600_bytecode {
 198         enum chip_class                 chip_class;
 199         enum r600_msaa_texture_mode     msaa_texture_mode;
 200         int                             type;
 201         struct list_head                cf;
 202         struct r600_bytecode_cf         *cf_last;
 203         unsigned                        ndw;
 204         unsigned                        ncf;
 205         unsigned                        ngpr;
 206         unsigned                        nstack;
 207         unsigned                        nresource;
 208         unsigned                        force_add_cf;
 209         uint32_t                        *bytecode;
 210         uint32_t                        fc_sp;
 211         struct r600_cf_stack_entry      fc_stack[32];
 212         unsigned                        call_sp;
 213         struct r600_cf_callstack        callstack[SQ_MAX_CALL_DEPTH];
 214         unsigned        ar_loaded;
 215         unsigned        ar_reg;
 216         unsigned        ar_chan;
 217         unsigned        ar_handling;
 218         unsigned        r6xx_nop_after_rel_dst;
 219 };
 220
 221 /* eg_asm.c */
 222 int eg_bytecode_cf_build(struct r600_bytecode *bc, struct r600_bytecode_cf *cf);
 223
 224 /* r600_asm.c */
 225 void r600_bytecode_init(struct r600_bytecode *bc,
 226                         enum chip_class chip_class,
 227                         enum radeon_family family,
 228                         enum r600_msaa_texture_mode msaa_texture_mode);
 229 void r600_bytecode_clear(struct r600_bytecode *bc);
 230 int r600_bytecode_add_alu(struct r600_bytecode *bc, const struct r600_bytecode_alu *alu);
 231 int r600_bytecode_add_vtx(struct r600_bytecode *bc, const struct r600_bytecode_vtx *vtx);
 232 int r600_bytecode_add_tex(struct r600_bytecode *bc, const struct r600_bytecode_tex *tex);
 233 int r600_bytecode_add_output(struct r600_bytecode *bc, const struct r600_bytecode_output *output);
 234 int r600_bytecode_build(struct r600_bytecode *bc);
 235 int r600_bytecode_add_cfinst(struct r600_bytecode *bc, int inst);
 236 int r600_bytecode_add_alu_type(struct r600_bytecode *bc, const struct r600_bytecode_alu *alu, int type);
 237 void r600_bytecode_special_constants(uint32_t value, unsigned *sel, unsigned *neg);
 238 void r600_bytecode_dump(struct r600_bytecode *bc);
 239 void r600_bytecode_alu_read(struct r600_bytecode_alu *alu, uint32_t word0, uint32_t word1);
 240
 241 int cm_bytecode_add_cf_end(struct r600_bytecode *bc);
 242
 243 void *r600_create_vertex_fetch_shader(struct pipe_context *ctx,
 244                                       unsigned count,
 245                                       const struct pipe_vertex_element *elements);
 246
 247 /* r700_asm.c */
 248 void r700_bytecode_cf_vtx_build(uint32_t *bytecode, const struct r600_bytecode_cf *cf);
 249 int r700_bytecode_alu_build(struct r600_bytecode *bc, struct r600_bytecode_alu *alu, unsigned id);
 250 void r700_bytecode_alu_read(struct r600_bytecode_alu *alu, uint32_t word0, uint32_t word1);
 251 void r600_bytecode_export_read(struct r600_bytecode_output *output, uint32_t word0, uint32_t word1);
 252 void eg_bytecode_export_read(struct r600_bytecode_output *output, uint32_t word0, uint32_t word1);
 253
 254 void r600_vertex_data_type(enum pipe_format pformat, unsigned *format,
 255                            unsigned *num_format, unsigned *format_comp, unsigned *endian);
 256 #endif