i965/fs: Add a devinfo field to the generator and use it for gen checks

Reviewed-by: Matt Turner <mattst88@gmail.com>

2 files changed, 58 insertions, 59 deletions

diff --git a/src/mesa/drivers/dri/i965/brw_fs.h b/src/mesa/drivers/dri/i965/brw_fs.h
index c42907050d..1d3f83d9cd 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.h
+++ b/src/mesa/drivers/dri/i965/brw_fs.h
@@ -639,6 +639,7 @@ private:
    bool patch_discard_jumps_to_fb_writes();
 
    struct brw_context *brw;
+   const struct brw_device_info *devinfo;
 
    struct brw_compile *p;
    const void * const key;
diff --git a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
index 1ef2d1d5aa..ce5ad8369f 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
@@ -130,14 +130,14 @@ fs_generator::fs_generator(struct brw_context *brw,
                            bool runtime_check_aads_emit,
                            const char *stage_abbrev)
 
-   : brw(brw), key(key),
+   : brw(brw), devinfo(brw->intelScreen->devinfo), key(key),
      prog_data(prog_data),
      prog(prog), promoted_constants(promoted_constants),
      runtime_check_aads_emit(runtime_check_aads_emit), debug_flag(false),
      stage_abbrev(stage_abbrev), mem_ctx(mem_ctx)
 {
    p = rzalloc(mem_ctx, struct brw_compile);
-   brw_init_compile(brw->intelScreen->devinfo, p, mem_ctx);
+   brw_init_compile(devinfo, p, mem_ctx);
 }
 
 fs_generator::~fs_generator()
@@ -159,7 +159,7 @@ public:
 bool
 fs_generator::patch_discard_jumps_to_fb_writes()
 {
-   if (brw->gen < 6 || this->discard_halt_patches.is_empty())
+   if (devinfo->gen < 6 || this->discard_halt_patches.is_empty())
       return false;
 
    int scale = brw_jump_scale(p->devinfo);
@@ -203,7 +203,7 @@ fs_generator::fire_fb_write(fs_inst *inst,
 
    brw_wm_prog_data *prog_data = (brw_wm_prog_data*) this->prog_data;
 
-   if (brw->gen < 6) {
+   if (devinfo->gen < 6) {
       brw_push_insn_state(p);
       brw_set_default_exec_size(p, BRW_EXECUTE_8);
       brw_set_default_mask_control(p, BRW_MASK_DISABLE);
@@ -254,7 +254,7 @@ fs_generator::generate_fb_write(fs_inst *inst, struct brw_reg payload)
    const brw_wm_prog_key * const key = (brw_wm_prog_key * const) this->key;
    struct brw_reg implied_header;
 
-   if (brw->gen < 8 && !brw->is_haswell) {
+   if (devinfo->gen < 8 && !devinfo->is_haswell) {
       brw_set_default_predicate_control(p, BRW_PREDICATE_NONE);
    }
 
@@ -277,7 +277,7 @@ fs_generator::generate_fb_write(fs_inst *inst, struct brw_reg payload)
       if (prog_data->uses_kill) {
          struct brw_reg pixel_mask;
 
-         if (brw->gen >= 6)
+         if (devinfo->gen >= 6)
             pixel_mask = retype(brw_vec1_grf(1, 7), BRW_REGISTER_TYPE_UW);
          else
             pixel_mask = retype(brw_vec1_grf(0, 0), BRW_REGISTER_TYPE_UW);
@@ -285,7 +285,7 @@ fs_generator::generate_fb_write(fs_inst *inst, struct brw_reg payload)
          brw_MOV(p, pixel_mask, brw_flag_reg(0, 1));
       }
 
-      if (brw->gen >= 6) {
+      if (devinfo->gen >= 6) {
          brw_push_insn_state(p);
          brw_set_default_exec_size(p, BRW_EXECUTE_16);
 	 brw_set_default_compression_control(p, BRW_COMPRESSION_COMPRESSED);
@@ -325,7 +325,7 @@ fs_generator::generate_fb_write(fs_inst *inst, struct brw_reg payload)
       fire_fb_write(inst, payload, implied_header, inst->mlen);
    } else {
       /* This can only happen in gen < 6 */
-      assert(brw->gen < 6);
+      assert(devinfo->gen < 6);
 
       struct brw_reg v1_null_ud = vec1(retype(brw_null_reg(), BRW_REGISTER_TYPE_UD));
 
@@ -413,8 +413,8 @@ fs_generator::generate_linterp(fs_inst *inst,
    struct brw_reg delta_y = offset(src[0], dispatch_width / 8);
    struct brw_reg interp = src[1];
 
-   if (brw->has_pln &&
-       (brw->gen >= 7 || (delta_x.nr & 1) == 0)) {
+   if (devinfo->has_pln &&
+       (devinfo->gen >= 7 || (delta_x.nr & 1) == 0)) {
       brw_PLN(p, dst, interp, delta_x);
    } else {
       brw_LINE(p, brw_null_reg(), interp, delta_x);
@@ -531,7 +531,7 @@ fs_generator::generate_tex(fs_inst *inst, struct brw_reg dst, struct brw_reg src
       unreachable("Invalid width for texture instruction");
    }
 
-   if (brw->gen >= 5) {
+   if (devinfo->gen >= 5) {
       switch (inst->opcode) {
       case SHADER_OPCODE_TEX:
 	 if (inst->shadow_compare) {
@@ -560,7 +560,7 @@ fs_generator::generate_tex(fs_inst *inst, struct brw_reg dst, struct brw_reg src
       case SHADER_OPCODE_TXD:
          if (inst->shadow_compare) {
             /* Gen7.5+.  Otherwise, lowered by brw_lower_texture_gradients(). */
-            assert(brw->gen >= 8 || brw->is_haswell);
+            assert(devinfo->gen >= 8 || devinfo->is_haswell);
             msg_type = HSW_SAMPLER_MESSAGE_SAMPLE_DERIV_COMPARE;
          } else {
             msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE_DERIVS;
@@ -570,17 +570,17 @@ fs_generator::generate_tex(fs_inst *inst, struct brw_reg dst, struct brw_reg src
 	 msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE_LD;
 	 break;
       case SHADER_OPCODE_TXF_CMS:
-         if (brw->gen >= 7)
+         if (devinfo->gen >= 7)
             msg_type = GEN7_SAMPLER_MESSAGE_SAMPLE_LD2DMS;
          else
             msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE_LD;
          break;
       case SHADER_OPCODE_TXF_UMS:
-         assert(brw->gen >= 7);
+         assert(devinfo->gen >= 7);
          msg_type = GEN7_SAMPLER_MESSAGE_SAMPLE_LD2DSS;
          break;
       case SHADER_OPCODE_TXF_MCS:
-         assert(brw->gen >= 7);
+         assert(devinfo->gen >= 7);
          msg_type = GEN7_SAMPLER_MESSAGE_SAMPLE_LD_MCS;
          break;
       case SHADER_OPCODE_LOD:
@@ -588,15 +588,15 @@ fs_generator::generate_tex(fs_inst *inst, struct brw_reg dst, struct brw_reg src
          break;
       case SHADER_OPCODE_TG4:
          if (inst->shadow_compare) {
-            assert(brw->gen >= 7);
+            assert(devinfo->gen >= 7);
             msg_type = GEN7_SAMPLER_MESSAGE_SAMPLE_GATHER4_C;
          } else {
-            assert(brw->gen >= 6);
+            assert(devinfo->gen >= 6);
             msg_type = GEN7_SAMPLER_MESSAGE_SAMPLE_GATHER4;
          }
          break;
       case SHADER_OPCODE_TG4_OFFSET:
-         assert(brw->gen >= 7);
+         assert(devinfo->gen >= 7);
          if (inst->shadow_compare) {
             msg_type = GEN7_SAMPLER_MESSAGE_SAMPLE_GATHER4_PO_C;
          } else {
@@ -679,11 +679,11 @@ fs_generator::generate_tex(fs_inst *inst, struct brw_reg dst, struct brw_reg src
    }
 
    if (is_combined_send) {
-      assert(brw->gen >= 9 || brw->is_cherryview);
+      assert(devinfo->gen >= 9 || devinfo->is_cherryview);
       rlen = 0;
    }
 
-   assert(brw->gen < 7 || !inst->header_present ||
+   assert(devinfo->gen < 7 || !inst->header_present ||
           src.file == BRW_GENERAL_REGISTER_FILE);
 
    assert(sampler_index.type == BRW_REGISTER_TYPE_UD);
@@ -693,13 +693,13 @@ fs_generator::generate_tex(fs_inst *inst, struct brw_reg dst, struct brw_reg src
     * Otherwise, we can use an implied move from g0 to the first message reg.
     */
    if (inst->header_present) {
-      if (brw->gen < 6 && !inst->offset) {
+      if (devinfo->gen < 6 && !inst->offset) {
          /* Set up an implied move from g0 to the MRF. */
          src = retype(brw_vec8_grf(0, 0), BRW_REGISTER_TYPE_UW);
       } else {
          struct brw_reg header_reg;
 
-         if (brw->gen >= 7) {
+         if (devinfo->gen >= 7) {
             header_reg = src;
          } else {
             assert(inst->base_mrf != -1);
@@ -890,7 +890,7 @@ fs_generator::generate_ddy(enum opcode opcode,
        */
       bool unroll_to_simd8 =
          (dispatch_width == 16 &&
-          (brw->gen == 4 || (brw->gen == 7 && !brw->is_haswell)));
+          (devinfo->gen == 4 || (devinfo->gen == 7 && !devinfo->is_haswell)));
 
       /* produce accurate derivatives */
       struct brw_reg src0 = brw_reg(src.file, src.nr, 0,
@@ -953,7 +953,7 @@ fs_generator::generate_ddy(enum opcode opcode,
 void
 fs_generator::generate_discard_jump(fs_inst *inst)
 {
-   assert(brw->gen >= 6);
+   assert(devinfo->gen >= 6);
 
    /* This HALT will be patched up at FB write time to point UIP at the end of
     * the program, and at brw_uip_jip() JIP will be set to the end of the
@@ -1039,7 +1039,7 @@ fs_generator::generate_uniform_pull_constant_load_gen7(fs_inst *inst,
    bool header_present = false;
    int mlen = 1;
 
-   if (brw->gen >= 9) {
+   if (devinfo->gen >= 9) {
       /* Skylake requires a message header in order to use SIMD4x2 mode. */
       src = retype(brw_vec4_grf(offset.nr - 1, 0), BRW_REGISTER_TYPE_UD);
       mlen = 2;
@@ -1122,7 +1122,7 @@ fs_generator::generate_varying_pull_constant_load(fs_inst *inst,
                                                   struct brw_reg index,
                                                   struct brw_reg offset)
 {
-   assert(brw->gen < 7); /* Should use the gen7 variant. */
+   assert(devinfo->gen < 7); /* Should use the gen7 variant. */
    assert(inst->header_present);
    assert(inst->mlen);
 
@@ -1139,7 +1139,7 @@ fs_generator::generate_varying_pull_constant_load(fs_inst *inst,
       rlen = 4;
    }
 
-   if (brw->gen >= 5)
+   if (devinfo->gen >= 5)
       msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE_LD;
    else {
       /* We always use the SIMD16 message so that we only have to load U, and
@@ -1163,7 +1163,7 @@ fs_generator::generate_varying_pull_constant_load(fs_inst *inst,
    brw_inst_set_qtr_control(p->devinfo, send, BRW_COMPRESSION_NONE);
    brw_set_dest(p, send, retype(dst, BRW_REGISTER_TYPE_UW));
    brw_set_src0(p, send, header);
-   if (brw->gen < 6)
+   if (devinfo->gen < 6)
       brw_inst_set_base_mrf(p->devinfo, send, inst->base_mrf);
 
    /* Our surface is set up as floats, regardless of what actual data is
@@ -1189,7 +1189,7 @@ fs_generator::generate_varying_pull_constant_load_gen7(fs_inst *inst,
                                                        struct brw_reg index,
                                                        struct brw_reg offset)
 {
-   assert(brw->gen >= 7);
+   assert(devinfo->gen >= 7);
    /* Varying-offset pull constant loads are treated as a normal expression on
     * gen7, so the fact that it's a send message is hidden at the IR level.
     */
@@ -1276,7 +1276,7 @@ fs_generator::generate_mov_dispatch_to_flags(fs_inst *inst)
    struct brw_reg flags = brw_flag_reg(0, inst->flag_subreg);
    struct brw_reg dispatch_mask;
 
-   if (brw->gen >= 6)
+   if (devinfo->gen >= 6)
       dispatch_mask = retype(brw_vec1_grf(1, 7), BRW_REGISTER_TYPE_UW);
    else
       dispatch_mask = retype(brw_vec1_grf(0, 0), BRW_REGISTER_TYPE_UW);
@@ -1395,7 +1395,7 @@ fs_generator::generate_pack_half_2x16_split(fs_inst *inst,
                                             struct brw_reg x,
                                             struct brw_reg y)
 {
-   assert(brw->gen >= 7);
+   assert(devinfo->gen >= 7);
    assert(dst.type == BRW_REGISTER_TYPE_UD);
    assert(x.type == BRW_REGISTER_TYPE_F);
    assert(y.type == BRW_REGISTER_TYPE_F);
@@ -1433,7 +1433,7 @@ fs_generator::generate_unpack_half_2x16_split(fs_inst *inst,
                                               struct brw_reg dst,
                                               struct brw_reg src)
 {
-   assert(brw->gen >= 7);
+   assert(devinfo->gen >= 7);
    assert(dst.type == BRW_REGISTER_TYPE_F);
    assert(src.type == BRW_REGISTER_TYPE_UD);
 
@@ -1463,7 +1463,7 @@ fs_generator::generate_shader_time_add(fs_inst *inst,
                                        struct brw_reg offset,
                                        struct brw_reg value)
 {
-   assert(brw->gen >= 7);
+   assert(devinfo->gen >= 7);
    brw_push_insn_state(p);
    brw_set_default_mask_control(p, true);
 
@@ -1537,8 +1537,6 @@ fs_generator::enable_debug(const char *shader_name)
 int
 fs_generator::generate_code(const cfg_t *cfg, int dispatch_width)
 {
-   const struct brw_device_info *devinfo = brw->intelScreen->devinfo;
-
    /* align to 64 byte boundary. */
    while (p->next_insn_offset % 64)
       brw_NOP(p);
@@ -1632,7 +1630,7 @@ fs_generator::generate_code(const cfg_t *cfg, int dispatch_width)
          break;
 
       case BRW_OPCODE_MAD:
-         assert(brw->gen >= 6);
+         assert(devinfo->gen >= 6);
 	 brw_set_default_access_mode(p, BRW_ALIGN_16);
          if (dispatch_width == 16 && !devinfo->supports_simd16_3src) {
             brw_set_default_exec_size(p, BRW_EXECUTE_8);
@@ -1654,7 +1652,7 @@ fs_generator::generate_code(const cfg_t *cfg, int dispatch_width)
 	 break;
 
       case BRW_OPCODE_LRP:
-         assert(brw->gen >= 6);
+         assert(devinfo->gen >= 6);
 	 brw_set_default_access_mode(p, BRW_ALIGN_16);
          if (dispatch_width == 16 && !devinfo->supports_simd16_3src) {
             brw_set_default_exec_size(p, BRW_EXECUTE_8);
@@ -1710,11 +1708,11 @@ fs_generator::generate_code(const cfg_t *cfg, int dispatch_width)
 	 brw_SHL(p, dst, src[0], src[1]);
 	 break;
       case BRW_OPCODE_F32TO16:
-         assert(brw->gen >= 7);
+         assert(devinfo->gen >= 7);
          brw_F32TO16(p, dst, src[0]);
          break;
       case BRW_OPCODE_F16TO32:
-         assert(brw->gen >= 7);
+         assert(devinfo->gen >= 7);
          brw_F16TO32(p, dst, src[0]);
          break;
       case BRW_OPCODE_CMP:
@@ -1729,7 +1727,7 @@ fs_generator::generate_code(const cfg_t *cfg, int dispatch_width)
           * coissuing would affect CMP instructions not otherwise affected by
           * the errata.
           */
-         if (dispatch_width == 16 && brw->gen == 7 && !brw->is_haswell) {
+         if (dispatch_width == 16 && devinfo->gen == 7 && !devinfo->is_haswell) {
             if (dst.file == BRW_GENERAL_REGISTER_FILE) {
                brw_set_default_exec_size(p, BRW_EXECUTE_8);
                brw_set_default_compression_control(p, BRW_COMPRESSION_NONE);
@@ -1760,32 +1758,32 @@ fs_generator::generate_code(const cfg_t *cfg, int dispatch_width)
 	 brw_SEL(p, dst, src[0], src[1]);
 	 break;
       case BRW_OPCODE_BFREV:
-         assert(brw->gen >= 7);
+         assert(devinfo->gen >= 7);
          /* BFREV only supports UD type for src and dst. */
          brw_BFREV(p, retype(dst, BRW_REGISTER_TYPE_UD),
                       retype(src[0], BRW_REGISTER_TYPE_UD));
          break;
       case BRW_OPCODE_FBH:
-         assert(brw->gen >= 7);
+         assert(devinfo->gen >= 7);
          /* FBH only supports UD type for dst. */
          brw_FBH(p, retype(dst, BRW_REGISTER_TYPE_UD), src[0]);
          break;
       case BRW_OPCODE_FBL:
-         assert(brw->gen >= 7);
+         assert(devinfo->gen >= 7);
          /* FBL only supports UD type for dst. */
          brw_FBL(p, retype(dst, BRW_REGISTER_TYPE_UD), src[0]);
          break;
       case BRW_OPCODE_CBIT:
-         assert(brw->gen >= 7);
+         assert(devinfo->gen >= 7);
          /* CBIT only supports UD type for dst. */
          brw_CBIT(p, retype(dst, BRW_REGISTER_TYPE_UD), src[0]);
          break;
       case BRW_OPCODE_ADDC:
-         assert(brw->gen >= 7);
+         assert(devinfo->gen >= 7);
          brw_ADDC(p, dst, src[0], src[1]);
          break;
       case BRW_OPCODE_SUBB:
-         assert(brw->gen >= 7);
+         assert(devinfo->gen >= 7);
          brw_SUBB(p, dst, src[0], src[1]);
          break;
       case BRW_OPCODE_MAC:
@@ -1793,7 +1791,7 @@ fs_generator::generate_code(const cfg_t *cfg, int dispatch_width)
          break;
 
       case BRW_OPCODE_BFE:
-         assert(brw->gen >= 7);
+         assert(devinfo->gen >= 7);
          brw_set_default_access_mode(p, BRW_ALIGN_16);
          if (dispatch_width == 16 && !devinfo->supports_simd16_3src) {
             brw_set_default_exec_size(p, BRW_EXECUTE_8);
@@ -1809,13 +1807,13 @@ fs_generator::generate_code(const cfg_t *cfg, int dispatch_width)
          break;
 
       case BRW_OPCODE_BFI1:
-         assert(brw->gen >= 7);
+         assert(devinfo->gen >= 7);
          /* The Haswell WaForceSIMD8ForBFIInstruction workaround says that we
           * should
           *
           *    "Force BFI instructions to be executed always in SIMD8."
           */
-         if (dispatch_width == 16 && brw->is_haswell) {
+         if (dispatch_width == 16 && devinfo->is_haswell) {
             brw_set_default_exec_size(p, BRW_EXECUTE_8);
             brw_set_default_compression_control(p, BRW_COMPRESSION_NONE);
             brw_BFI1(p, firsthalf(dst), firsthalf(src[0]), firsthalf(src[1]));
@@ -1827,7 +1825,7 @@ fs_generator::generate_code(const cfg_t *cfg, int dispatch_width)
          }
          break;
       case BRW_OPCODE_BFI2:
-         assert(brw->gen >= 7);
+         assert(devinfo->gen >= 7);
          brw_set_default_access_mode(p, BRW_ALIGN_16);
          /* The Haswell WaForceSIMD8ForBFIInstruction workaround says that we
           * should
@@ -1838,7 +1836,7 @@ fs_generator::generate_code(const cfg_t *cfg, int dispatch_width)
           * do for the other three-source instructions.
           */
          if (dispatch_width == 16 &&
-             (brw->is_haswell || !devinfo->supports_simd16_3src)) {
+             (devinfo->is_haswell || !devinfo->supports_simd16_3src)) {
             brw_set_default_exec_size(p, BRW_EXECUTE_8);
             brw_set_default_compression_control(p, BRW_COMPRESSION_NONE);
             brw_BFI2(p, firsthalf(dst), firsthalf(src[0]), firsthalf(src[1]), firsthalf(src[2]));
@@ -1854,7 +1852,7 @@ fs_generator::generate_code(const cfg_t *cfg, int dispatch_width)
       case BRW_OPCODE_IF:
 	 if (inst->src[0].file != BAD_FILE) {
 	    /* The instruction has an embedded compare (only allowed on gen6) */
-	    assert(brw->gen == 6);
+	    assert(devinfo->gen == 6);
 	    gen6_IF(p, inst->conditional_mod, src[0], src[1]);
 	 } else {
 	    brw_IF(p, dispatch_width == 16 ? BRW_EXECUTE_16 : BRW_EXECUTE_8);
@@ -1893,14 +1891,14 @@ fs_generator::generate_code(const cfg_t *cfg, int dispatch_width)
       case SHADER_OPCODE_LOG2:
       case SHADER_OPCODE_SIN:
       case SHADER_OPCODE_COS:
-         assert(brw->gen < 6 || inst->mlen == 0);
+         assert(devinfo->gen < 6 || inst->mlen == 0);
          assert(inst->conditional_mod == BRW_CONDITIONAL_NONE);
-	 if (brw->gen >= 7) {
+	 if (devinfo->gen >= 7) {
             gen6_math(p, dst, brw_math_function(inst->opcode), src[0],
                       brw_null_reg());
-	 } else if (brw->gen == 6) {
+	 } else if (devinfo->gen == 6) {
 	    generate_math_gen6(inst, dst, src[0], brw_null_reg());
-	 } else if (brw->gen == 5 || brw->is_g4x) {
+	 } else if (devinfo->gen == 5 || devinfo->is_g4x) {
 	    generate_math_g45(inst, dst, src[0]);
 	 } else {
 	    generate_math_gen4(inst, dst, src[0]);
@@ -1909,11 +1907,11 @@ fs_generator::generate_code(const cfg_t *cfg, int dispatch_width)
       case SHADER_OPCODE_INT_QUOTIENT:
       case SHADER_OPCODE_INT_REMAINDER:
       case SHADER_OPCODE_POW:
-         assert(brw->gen < 6 || inst->mlen == 0);
+         assert(devinfo->gen < 6 || inst->mlen == 0);
          assert(inst->conditional_mod == BRW_CONDITIONAL_NONE);
-	 if (brw->gen >= 7 && inst->opcode == SHADER_OPCODE_POW) {
+	 if (devinfo->gen >= 7 && inst->opcode == SHADER_OPCODE_POW) {
             gen6_math(p, dst, brw_math_function(inst->opcode), src[0], src[1]);
-	 } else if (brw->gen >= 6) {
+	 } else if (devinfo->gen >= 6) {
 	    generate_math_gen6(inst, dst, src[0], src[1]);
 	 } else {
 	    generate_math_gen4(inst, dst, src[0]);