4 files changed, 19 insertions, 0 deletions
diff --git a/src/freedreno/ir3/ir3.h b/src/freedreno/ir3/ir3.h
index b5135fa4017..461ff633205 100644
--- a/src/freedreno/ir3/ir3.h
+++ b/src/freedreno/ir3/ir3.h
@@ -1437,7 +1437,9 @@ INSTR1(SQRT)
 
 /* cat5 instructions: */
 INSTR1(DSX)
+INSTR1(DSXPP_1)
 INSTR1(DSY)
+INSTR1(DSYPP_1)
 INSTR1F(3D, DSX)
 INSTR1F(3D, DSY)
 INSTR1(RGETPOS)
diff --git a/src/freedreno/ir3/ir3_compiler_nir.c b/src/freedreno/ir3/ir3_compiler_nir.c
index 602b3612165..51715025561 100644
--- a/src/freedreno/ir3/ir3_compiler_nir.c
+++ b/src/freedreno/ir3/ir3_compiler_nir.c
@@ -467,12 +467,20 @@ emit_alu(struct ir3_context *ctx, nir_alu_instr *alu)
 		dst[0] = ir3_DSX(b, src[0], 0);
 		dst[0]->cat5.type = TYPE_F32;
 		break;
+	case nir_op_fddx_fine:
+		dst[0] = ir3_DSXPP_1(b, src[0], 0);
+		dst[0]->cat5.type = TYPE_F32;
+		break;
 	case nir_op_fddy:
 	case nir_op_fddy_coarse:
 		dst[0] = ir3_DSY(b, src[0], 0);
 		dst[0]->cat5.type = TYPE_F32;
 		break;
 		break;
+	case nir_op_fddy_fine:
+		dst[0] = ir3_DSYPP_1(b, src[0], 0);
+		dst[0]->cat5.type = TYPE_F32;
+		break;
 	case nir_op_flt16:
 	case nir_op_flt32:
 		dst[0] = ir3_CMPS_F(b, src[0], 0, src[1], 0);
diff --git a/src/freedreno/ir3/ir3_legalize.c b/src/freedreno/ir3/ir3_legalize.c
index 7894b75c0e8..db21507181c 100644
--- a/src/freedreno/ir3/ir3_legalize.c
+++ b/src/freedreno/ir3/ir3_legalize.c
@@ -246,6 +246,13 @@ legalize_block(struct ir3_legalize_ctx *ctx, struct ir3_block *block)
 			list_addtail(&n->node, &block->instr_list);
 		}
 
+		if (n->opc == OPC_DSXPP_1 || n->opc == OPC_DSYPP_1) {
+			struct ir3_instruction *op_p = ir3_instr_clone(n);
+			op_p->flags = IR3_INSTR_P;
+
+			ctx->so->need_fine_derivatives = true;
+		}
+
 		if (is_sfu(n))
 			regmask_set(&state->needs_ss, n->regs[0]);
 
diff --git a/src/freedreno/ir3/ir3_shader.h b/src/freedreno/ir3/ir3_shader.h
index f056a3e5cd6..e6765985676 100644
--- a/src/freedreno/ir3/ir3_shader.h
+++ b/src/freedreno/ir3/ir3_shader.h
@@ -564,6 +564,8 @@ struct ir3_shader_variant {
 	/* do we need derivatives: */
 	bool need_pixlod;
 
+	bool need_fine_derivatives;
+
 	/* do we have kill, image write, etc (which prevents early-z): */
 	bool no_earlyz;