nvc0: import nvc0 gallium driver

1 files changed, 648 insertions, 0 deletions

diff --git a/src/gallium/drivers/nvc0/nvc0_pc.h b/src/gallium/drivers/nvc0/nvc0_pc.h
new file mode 100644
index 00000000000..b48b0b1fbad
--- /dev/null
+++ b/src/gallium/drivers/nvc0/nvc0_pc.h
@@ -0,0 +1,648 @@
+/*
+ * Copyright 2010 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 __NVC0_COMPILER_H__
+#define __NVC0_COMPILER_H__
+
+#include <stdio.h>
+
+#ifndef NOUVEAU_DBG
+#ifdef NOUVEAU_DEBUG
+# define NOUVEAU_DBG(args...) debug_printf(args);
+#else
+# define NOUVEAU_DBG(args...)
+#endif
+#endif
+
+#ifndef NOUVEAU_ERR
+#define NOUVEAU_ERR(fmt, args...) \
+   fprintf(stderr, "%s:%d -  "fmt, __FUNCTION__, __LINE__, ##args);
+#endif
+
+#include "pipe/p_defines.h"
+#include "util/u_inlines.h"
+#include "util/u_memory.h"
+#include "util/u_double_list.h"
+
+/* pseudo opcodes */
+#define NV_OP_UNDEF      0
+#define NV_OP_BIND       1
+#define NV_OP_MERGE      2
+#define NV_OP_PHI        3
+#define NV_OP_SELECT     4
+#define NV_OP_NOP        5
+
+/**
+ * BIND forces source operand i into the same register as destination operand i
+ * SELECT forces its multiple source operands and its destination operand into
+ *  one and the same register.
+ */
+
+/* base opcodes */
+#define NV_OP_LD         6
+#define NV_OP_ST         7
+#define NV_OP_MOV        8
+#define NV_OP_AND        9
+#define NV_OP_OR        10
+#define NV_OP_XOR       11
+#define NV_OP_SHL       12
+#define NV_OP_SHR       13
+#define NV_OP_NOT       14
+#define NV_OP_SET       15
+#define NV_OP_ADD       16
+#define NV_OP_SUB       17
+#define NV_OP_MUL       18
+#define NV_OP_MAD       19
+#define NV_OP_ABS       20
+#define NV_OP_NEG       21
+#define NV_OP_MAX       22
+#define NV_OP_MIN       23
+#define NV_OP_CVT       24
+#define NV_OP_CEIL      25
+#define NV_OP_FLOOR     26
+#define NV_OP_TRUNC     27
+#define NV_OP_SAD       28
+
+/* shader opcodes */
+#define NV_OP_VFETCH    29
+#define NV_OP_PFETCH    30
+#define NV_OP_EXPORT    31
+#define NV_OP_LINTERP   32
+#define NV_OP_PINTERP   33
+#define NV_OP_EMIT      34
+#define NV_OP_RESTART   35
+#define NV_OP_TEX       36
+#define NV_OP_TXB       37
+#define NV_OP_TXL       38
+#define NV_OP_TXF       39
+#define NV_OP_TXQ       40
+#define NV_OP_QUADOP    41
+#define NV_OP_DFDX      42
+#define NV_OP_DFDY      43
+#define NV_OP_KIL       44
+
+/* control flow opcodes */
+#define NV_OP_BRA       45
+#define NV_OP_CALL      46
+#define NV_OP_RET       47
+#define NV_OP_EXIT      48
+#define NV_OP_BREAK     49
+#define NV_OP_BREAKADDR 50
+#define NV_OP_JOINAT    51
+#define NV_OP_JOIN      52
+
+/* typed opcodes */
+#define NV_OP_ADD_F32   NV_OP_ADD
+#define NV_OP_ADD_B32   53
+#define NV_OP_MUL_F32   NV_OP_MUL
+#define NV_OP_MUL_B32   54
+#define NV_OP_ABS_F32   NV_OP_ABS
+#define NV_OP_ABS_S32   55
+#define NV_OP_NEG_F32   NV_OP_NEG
+#define NV_OP_NEG_S32   56
+#define NV_OP_MAX_F32   NV_OP_MAX
+#define NV_OP_MAX_S32   57
+#define NV_OP_MAX_U32   58
+#define NV_OP_MIN_F32   NV_OP_MIN
+#define NV_OP_MIN_S32   59
+#define NV_OP_MIN_U32   60
+#define NV_OP_SET_F32   61
+#define NV_OP_SET_S32   62
+#define NV_OP_SET_U32   63
+#define NV_OP_SAR       64
+#define NV_OP_RCP       65
+#define NV_OP_RSQ       66
+#define NV_OP_LG2       67
+#define NV_OP_SIN       68
+#define NV_OP_COS       69
+#define NV_OP_EX2       70
+#define NV_OP_PRESIN    71
+#define NV_OP_PREEX2    72
+#define NV_OP_SAT       73
+
+/* newly added opcodes */
+#define NV_OP_SET_F32_AND 74
+#define NV_OP_SET_F32_OR  75
+#define NV_OP_SET_F32_XOR 76
+#define NV_OP_SELP        77
+#define NV_OP_SLCT        78
+#define NV_OP_SLCT_F32    NV_OP_SLCT
+#define NV_OP_SLCT_S32    79
+#define NV_OP_SLCT_U32    80
+#define NV_OP_SUB_F32     NV_OP_SUB
+#define NV_OP_SUB_S32     81
+#define NV_OP_MAD_F32     NV_OP_MAD
+#define NV_OP_FSET_F32    82
+
+#define NV_OP_COUNT     83
+
+/* nv50 files omitted */
+#define NV_FILE_GPR      0
+#define NV_FILE_COND     1
+#define NV_FILE_PRED     2
+#define NV_FILE_IMM      16
+#define NV_FILE_MEM_S    32
+#define NV_FILE_MEM_V    34
+#define NV_FILE_MEM_A    35
+#define NV_FILE_MEM_L    48
+#define NV_FILE_MEM_G    64
+#define NV_FILE_MEM_C(i) (80 + i)
+
+#define NV_IS_MEMORY_FILE(f) ((f) >= NV_FILE_MEM_S)
+
+#define NV_MOD_NEG 1
+#define NV_MOD_ABS 2
+#define NV_MOD_NOT 4
+#define NV_MOD_SAT 8
+
+#define NV_TYPE_U8  0x00
+#define NV_TYPE_S8  0x01
+#define NV_TYPE_U16 0x02
+#define NV_TYPE_S16 0x03
+#define NV_TYPE_U32 0x04
+#define NV_TYPE_S32 0x05
+#define NV_TYPE_P32 0x07
+#define NV_TYPE_F32 0x09
+#define NV_TYPE_F64 0x0b
+#define NV_TYPE_VEC(x, n) (NV_TYPE_##x | (n << 4))
+#define NV_TYPE_ANY 0xff
+
+#define NV_TYPE_ISINT(t) ((t) < 7)
+#define NV_TYPE_ISSGD(t) ((t) & 1)
+
+#define NV_CC_FL 0x0
+#define NV_CC_LT 0x1
+#define NV_CC_EQ 0x2
+#define NV_CC_LE 0x3
+#define NV_CC_GT 0x4
+#define NV_CC_NE 0x5
+#define NV_CC_GE 0x6
+#define NV_CC_U  0x8
+#define NV_CC_TR 0xf
+#define NV_CC_O  0x10
+#define NV_CC_C  0x11
+#define NV_CC_A  0x12
+#define NV_CC_S  0x13
+
+#define NV_PC_MAX_INSTRUCTIONS 2048
+#define NV_PC_MAX_VALUES (NV_PC_MAX_INSTRUCTIONS * 4)
+
+#define NV_PC_MAX_BASIC_BLOCKS 1024
+
+struct nv_op_info {
+   uint base;                /* e.g. ADD_S32 -> ADD */
+   char name[12];
+   uint8_t type;
+   uint8_t mods;
+   unsigned flow        : 1;
+   unsigned commutative : 1;
+   unsigned vector      : 1;
+   unsigned predicate   : 1;
+   unsigned pseudo      : 1;
+   unsigned immediate   : 3;
+   unsigned memory      : 3;
+};
+
+extern struct nv_op_info nvc0_op_info_table[];
+
+#define NV_BASEOP(op) (nvc0_op_info_table[op].base)
+#define NV_OPTYPE(op) (nvc0_op_info_table[op].type)
+
+static INLINE uint
+nv_op_base(uint opcode)
+{
+   return nvc0_op_info_table[opcode].base;
+}
+
+static INLINE boolean
+nv_is_texture_op(uint opcode)
+{
+   return (opcode >= NV_OP_TEX && opcode <= NV_OP_TXQ);
+}
+
+static INLINE boolean
+nv_is_vector_op(uint opcode)
+{
+   return nvc0_op_info_table[opcode].vector ? TRUE : FALSE;
+}
+
+static INLINE boolean
+nv_op_commutative(uint opcode)
+{
+   return nvc0_op_info_table[opcode].commutative ? TRUE : FALSE;
+}
+
+static INLINE uint8_t
+nv_op_supported_src_mods(uint opcode)
+{
+   return nvc0_op_info_table[opcode].mods;
+}
+
+static INLINE boolean
+nv_op_predicateable(uint opcode)
+{
+   return nvc0_op_info_table[opcode].predicate ? TRUE : FALSE;
+}
+
+static INLINE uint
+nv_type_order(ubyte type)
+{
+   switch (type & 0xf) {
+   case NV_TYPE_U8:
+   case NV_TYPE_S8:
+      return 0;
+   case NV_TYPE_U16:
+   case NV_TYPE_S16:
+      return 1;
+   case NV_TYPE_U32:
+   case NV_TYPE_F32:
+   case NV_TYPE_S32:
+   case NV_TYPE_P32:
+      return 2;
+   case NV_TYPE_F64:
+      return 3;
+   }
+   assert(0);
+   return 0;
+}
+
+static INLINE uint
+nv_type_sizeof(ubyte type)
+{
+   if (type & 0xf0)
+      return (1 << nv_type_order(type)) * (type >> 4);
+   return 1 << nv_type_order(type);
+}
+
+static INLINE uint
+nv_type_sizeof_base(ubyte type)
+{
+   return 1 << nv_type_order(type);
+}
+
+struct nv_reg {
+   uint32_t address; /* for memory locations */
+   int id; /* for registers */
+   ubyte file;
+   ubyte size;
+   union {
+      int32_t s32;
+      int64_t s64;
+      uint64_t u64;
+      uint32_t u32;
+      float f32;
+      double f64;
+   } imm;
+};
+
+struct nv_range {
+   struct nv_range *next;
+   int bgn;
+   int end;
+};
+
+struct nv_ref;
+
+struct nv_value {
+   struct nv_reg reg; 
+   struct nv_instruction *insn;
+   struct nv_value *join;
+   struct nv_ref *last_use;
+   int n;
+   struct nv_range *livei;
+   int refc;
+   struct nv_value *next;
+   struct nv_value *prev;
+};
+
+struct nv_ref {
+   struct nv_value *value;
+   struct nv_instruction *insn;
+   struct list_head list; /* connects uses of the same value */
+   uint8_t mod;
+   uint8_t flags;
+};
+
+struct nv_basic_block;
+
+struct nv_instruction {
+   struct nv_instruction *next;
+   struct nv_instruction *prev;
+   uint opcode;
+   uint serial;
+
+   struct nv_value *def[5];
+   struct nv_ref *src[6];
+
+   int8_t predicate; /* index of predicate src */
+   int8_t indirect;  /* index of pointer src */
+
+   union {
+      struct {
+         uint8_t t; /* TIC binding */
+         uint8_t s; /* TSC binding */
+      } tex;
+      struct {
+         uint8_t d; /* output type */
+         uint8_t s; /* input type */
+      } cvt;
+   } ext;
+
+   struct nv_basic_block *bb;
+   struct nv_basic_block *target; /* target block of control flow insn */
+
+   unsigned cc         : 5; /* condition code */
+   unsigned fixed      : 1; /* don't optimize away (prematurely) */
+   unsigned terminator : 1;
+   unsigned join       : 1;
+   unsigned set_cond   : 4; /* 2nd byte */
+   unsigned saturate   : 1;
+   unsigned centroid   : 1;
+   unsigned flat       : 1;
+   unsigned patch      : 1;
+   unsigned lanes      : 4; /* 3rd byte */
+   unsigned tex_argc   : 3;
+   unsigned tex_live   : 1;
+   unsigned tex_cube   : 1; /* 4th byte */
+   unsigned tex_mask   : 4;
+
+   uint8_t quadop;
+};
+
+static INLINE int
+nvi_vector_size(struct nv_instruction *nvi)
+{
+   int i;
+   assert(nvi);
+   for (i = 0; i < 5 && nvi->def[i]; ++i);
+   return i;
+}
+
+#define CFG_EDGE_FORWARD     0
+#define CFG_EDGE_BACK        1
+#define CFG_EDGE_LOOP_ENTER  2
+#define CFG_EDGE_LOOP_LEAVE  4
+#define CFG_EDGE_FAKE        8
+
+/* 'WALL' edge means where reachability check doesn't follow */
+/* 'LOOP' edge means just having to do with loops */
+#define IS_LOOP_EDGE(k) ((k) & 7)
+#define IS_WALL_EDGE(k) ((k) & 9)
+
+struct nv_basic_block {
+   struct nv_instruction *entry; /* first non-phi instruction */
+   struct nv_instruction *exit;
+   struct nv_instruction *phi; /* very first instruction */
+   int num_instructions;
+
+   struct nv_basic_block *out[2]; /* no indirect branches -> 2 */
+   struct nv_basic_block *in[8]; /* hope that suffices */
+   uint num_in;
+   ubyte out_kind[2];
+   ubyte in_kind[8];
+
+   int id;
+   int subroutine;
+   uint priv; /* reset to 0 after you're done */
+   uint pass_seq;
+
+   uint32_t emit_pos; /* position, size in emitted code */
+   uint32_t emit_size;
+
+   uint32_t live_set[NV_PC_MAX_VALUES / 32];
+};
+
+struct nvc0_translation_info;
+
+struct nv_pc {
+   struct nv_basic_block **root;
+   struct nv_basic_block *current_block;
+   struct nv_basic_block *parent_block;
+
+   int loop_nesting_bound;
+   uint pass_seq;
+
+   struct nv_value values[NV_PC_MAX_VALUES];
+   struct nv_instruction instructions[NV_PC_MAX_INSTRUCTIONS];
+   struct nv_ref **refs;
+   struct nv_basic_block *bb_list[NV_PC_MAX_BASIC_BLOCKS];
+   int num_values;
+   int num_instructions;
+   int num_refs;
+   int num_blocks;
+   int num_subroutines;
+
+   int max_reg[4];
+
+   uint32_t *immd_buf; /* populated on emit */
+   unsigned immd_count;
+
+   uint32_t *emit;
+   unsigned emit_size;
+   unsigned emit_pos;
+
+   void *reloc_entries;
+   unsigned num_relocs;
+
+   /* optimization enables */
+   boolean opt_reload_elim;
+   boolean is_fragprog;
+};
+
+void nvc0_insn_append(struct nv_basic_block *, struct nv_instruction *);
+void nvc0_insn_insert_after(struct nv_instruction *, struct nv_instruction *);
+
+static INLINE struct nv_instruction *
+nv_alloc_instruction(struct nv_pc *pc, uint opcode)
+{
+   struct nv_instruction *insn;
+
+   insn = &pc->instructions[pc->num_instructions++];
+   assert(pc->num_instructions < NV_PC_MAX_INSTRUCTIONS);
+
+   insn->opcode = opcode;
+   insn->cc = 0;
+   insn->indirect = -1;
+   insn->predicate = -1;
+
+   return insn;
+}
+
+static INLINE struct nv_instruction *
+new_instruction(struct nv_pc *pc, uint opcode)
+{
+   struct nv_instruction *insn = nv_alloc_instruction(pc, opcode);
+
+   nvc0_insn_append(pc->current_block, insn);
+   return insn;
+}
+
+static INLINE struct nv_instruction *
+new_instruction_at(struct nv_pc *pc, struct nv_instruction *at, uint opcode)
+{
+   struct nv_instruction *insn = nv_alloc_instruction(pc, opcode);
+
+   nvc0_insn_insert_after(at, insn);
+   return insn;
+}
+
+static INLINE struct nv_value *
+new_value(struct nv_pc *pc, ubyte file, ubyte size)
+{
+   struct nv_value *value = &pc->values[pc->num_values];
+
+   assert(pc->num_values < NV_PC_MAX_VALUES - 1);
+
+   value->n = pc->num_values++;
+   value->join = value;
+   value->reg.id = -1;
+   value->reg.file = file;
+   value->reg.size = size;
+   return value;
+}
+
+static INLINE struct nv_value *
+new_value_like(struct nv_pc *pc, struct nv_value *like)
+{
+   return new_value(pc, like->reg.file, like->reg.size);
+}
+
+static INLINE struct nv_ref *
+new_ref(struct nv_pc *pc, struct nv_value *val)
+{
+   int i;
+   struct nv_ref *ref;
+
+   if ((pc->num_refs % 64) == 0) {
+      const unsigned old_size = pc->num_refs * sizeof(struct nv_ref *);
+      const unsigned new_size = (pc->num_refs + 64) * sizeof(struct nv_ref *);
+
+      pc->refs = REALLOC(pc->refs, old_size, new_size);
+
+      ref = CALLOC(64, sizeof(struct nv_ref));
+      for (i = 0; i < 64; ++i)
+         pc->refs[pc->num_refs + i] = &ref[i];
+   }
+
+   ref = pc->refs[pc->num_refs++];
+   ref->value = val;
+
+   LIST_INITHEAD(&ref->list);
+
+   ++val->refc;
+   return ref;
+}
+
+static INLINE struct nv_basic_block *
+new_basic_block(struct nv_pc *pc)
+{
+   struct nv_basic_block *bb;
+
+   if (pc->num_blocks >= NV_PC_MAX_BASIC_BLOCKS)
+      return NULL;
+
+   bb = CALLOC_STRUCT(nv_basic_block);
+
+   bb->id = pc->num_blocks;
+   pc->bb_list[pc->num_blocks++] = bb;
+   return bb;
+}
+
+static INLINE void
+nv_reference(struct nv_pc *pc,
+             struct nv_instruction *nvi, int c, struct nv_value *s)
+{
+   struct nv_ref **d = &nvi->src[c];
+   assert(c < 6);
+
+   if (*d) {
+      --(*d)->value->refc;
+      LIST_DEL(&(*d)->list);
+   }
+
+   if (s) {
+      if (!*d) {
+         *d = new_ref(pc, s);
+         (*d)->insn = nvi;
+      } else {
+         LIST_DEL(&(*d)->list);
+         (*d)->value = s;
+         ++(s->refc);
+      }
+      if (!s->last_use)
+         s->last_use = *d;
+      else
+         LIST_ADDTAIL(&s->last_use->list, &(*d)->list);
+
+      s->last_use = *d;
+      (*d)->insn = nvi;
+   } else {
+      *d = NULL;
+   }
+}
+
+/* nvc0_emit.c */
+void nvc0_emit_instruction(struct nv_pc *, struct nv_instruction *);
+
+/* nvc0_print.c */
+const char *nvc0_opcode_name(uint opcode);
+void nvc0_print_instruction(struct nv_instruction *);
+
+/* nvc0_pc.c */
+void nvc0_print_function(struct nv_basic_block *root);
+void nvc0_print_program(struct nv_pc *);
+
+boolean nvc0_insn_can_load(struct nv_instruction *, int s,
+                           struct nv_instruction *);
+boolean nvc0_insn_is_predicateable(struct nv_instruction *);
+
+int nvc0_insn_refcount(struct nv_instruction *);
+void nvc0_insn_delete(struct nv_instruction *);
+void nvc0_insns_permute(struct nv_instruction *prev, struct nv_instruction *);
+
+void nvc0_bblock_attach(struct nv_basic_block *parent,
+                        struct nv_basic_block *child, ubyte edge_kind);
+boolean nvc0_bblock_dominated_by(struct nv_basic_block *,
+                                 struct nv_basic_block *);
+boolean nvc0_bblock_reachable_by(struct nv_basic_block *future,
+                                 struct nv_basic_block *past,
+                                 struct nv_basic_block *final);
+struct nv_basic_block *nvc0_bblock_dom_frontier(struct nv_basic_block *);
+
+int nvc0_pc_replace_value(struct nv_pc *pc,
+                          struct nv_value *old_val,
+                          struct nv_value *new_val);
+
+struct nv_value *nvc0_pc_find_immediate(struct nv_ref *);
+struct nv_value *nvc0_pc_find_constant(struct nv_ref *);
+
+typedef void (*nv_pc_pass_func)(void *priv, struct nv_basic_block *b);
+
+void nvc0_pc_pass_in_order(struct nv_basic_block *, nv_pc_pass_func, void *);
+
+int nvc0_pc_exec_pass0(struct nv_pc *pc);
+int nvc0_pc_exec_pass1(struct nv_pc *pc);
+int nvc0_pc_exec_pass2(struct nv_pc *pc);
+
+int nvc0_tgsi_to_nc(struct nv_pc *, struct nvc0_translation_info *);
+
+#endif // NV50_COMPILER_H