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pan/midgard: Factor out emit_attr_read

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We will load attributes directly for gl_VertexID.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
This commit is contained in:
Alyssa Rosenzweig 2019-12-19 13:24:17 -05:00
parent 695b35605b
commit 6e68890fd6
1 changed files with 33 additions and 24 deletions
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57
src/panfrost/midgard/midgard_compile.c
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@ -1300,6 +1300,37 @@ emit_varying_read(
emit_mir_instruction(ctx, ins);
}
static void
emit_attr_read(
compiler_context *ctx,
unsigned dest, unsigned offset,
unsigned nr_comp, nir_alu_type t)
{
midgard_instruction ins = m_ld_attr_32(dest, offset);
ins.load_store.arg_1 = 0x1E;
ins.load_store.arg_2 = 0x1E;
ins.mask = mask_of(nr_comp);
/* Use the type appropriate load */
switch (t) {
case nir_type_uint:
case nir_type_bool:
ins.load_store.op = midgard_op_ld_attr_32u;
break;
case nir_type_int:
ins.load_store.op = midgard_op_ld_attr_32i;
break;
case nir_type_float:
ins.load_store.op = midgard_op_ld_attr_32;
break;
default:
unreachable("Attempted to load unknown type");
break;
}
emit_mir_instruction(ctx, ins);
}
void
emit_sysval_read(compiler_context *ctx, nir_instr *instr, signed dest_override,
unsigned nr_components)
@ -1455,30 +1486,8 @@ emit_intrinsic(compiler_context *ctx, nir_intrinsic_instr *instr)
midgard_instruction move = v_mov(SSA_FIXED_REGISTER(0), reg);
emit_mir_instruction(ctx, move);
schedule_barrier(ctx);
} else if (ctx->stage == MESA_SHADER_VERTEX) {
midgard_instruction ins = m_ld_attr_32(reg, offset);
ins.load_store.arg_1 = 0x1E;
ins.load_store.arg_2 = 0x1E;
ins.mask = mask_of(nr_comp);
/* Use the type appropriate load */
switch (t) {
case nir_type_uint:
case nir_type_bool:
ins.load_store.op = midgard_op_ld_attr_32u;
break;
case nir_type_int:
ins.load_store.op = midgard_op_ld_attr_32i;
break;
case nir_type_float:
ins.load_store.op = midgard_op_ld_attr_32;
break;
default:
unreachable("Attempted to load unknown type");
break;
}
emit_mir_instruction(ctx, ins);
} else if (ctx->stage == MESA_SHADER_VERTEX) {
emit_attr_read(ctx, reg, offset, nr_comp, t);
} else {
DBG("Unknown load\n");
assert(0);