From: Dave Airlie <airlied@redhat.com>
Date: Mon, 30 Nov 2015 00:45:19 +0000 (+1000)
Subject: r600: add shader key entries for tcs and tes.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=b1da110b71b20509e4689475e82e88750f69b8fc;p=mesa.git

r600: add shader key entries for tcs and tes.

with tessellation vs can now run on ls, and tes can
run on vs or es, tcs runs on hs.

Signed-off-by: Dave Airlie <airlied@redhat.com>
---

diff --git a/src/gallium/drivers/r600/r600_hw_context.c b/src/gallium/drivers/r600/r600_hw_context.c
index 13b69184a5b..b7845b5c19d 100644
--- a/src/gallium/drivers/r600/r600_hw_context.c
+++ b/src/gallium/drivers/r600/r600_hw_context.c
@@ -321,6 +321,10 @@ void r600_begin_new_cs(struct r600_context *ctx)
 		r600_mark_atom_dirty(ctx, &ctx->hw_shader_stages[R600_HW_STAGE_GS].atom);
 		r600_mark_atom_dirty(ctx, &ctx->gs_rings.atom);
 	}
+	if (ctx->tes_shader) {
+		r600_mark_atom_dirty(ctx, &ctx->hw_shader_stages[EG_HW_STAGE_HS].atom);
+		r600_mark_atom_dirty(ctx, &ctx->hw_shader_stages[EG_HW_STAGE_LS].atom);
+	}
 	r600_mark_atom_dirty(ctx, &ctx->hw_shader_stages[R600_HW_STAGE_VS].atom);
 	r600_mark_atom_dirty(ctx, &ctx->b.streamout.enable_atom);
 	r600_mark_atom_dirty(ctx, &ctx->b.render_cond_atom);
diff --git a/src/gallium/drivers/r600/r600_pipe.h b/src/gallium/drivers/r600/r600_pipe.h
index 041803df2ee..83f104ad3b5 100644
--- a/src/gallium/drivers/r600/r600_pipe.h
+++ b/src/gallium/drivers/r600/r600_pipe.h
@@ -500,6 +500,10 @@ struct r600_context {
 	struct r600_pipe_shader_selector *ps_shader;
 	struct r600_pipe_shader_selector *vs_shader;
 	struct r600_pipe_shader_selector *gs_shader;
+
+	struct r600_pipe_shader_selector *tcs_shader;
+	struct r600_pipe_shader_selector *tes_shader;
+
 	struct r600_rasterizer_state	*rasterizer;
 	bool				alpha_to_one;
 	bool				force_blend_disable;
diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c
index 4142c3e30e5..84bacb20368 100644
--- a/src/gallium/drivers/r600/r600_shader.c
+++ b/src/gallium/drivers/r600/r600_shader.c
@@ -1933,12 +1933,21 @@ static int r600_shader_from_tgsi(struct r600_context *rctx,
 	case TGSI_PROCESSOR_VERTEX:
 		shader->vs_as_gs_a = key.vs.as_gs_a;
 		shader->vs_as_es = key.vs.as_es;
+		shader->vs_as_ls = key.vs.as_ls;
 		if (shader->vs_as_es)
 			ring_outputs = true;
 		break;
 	case TGSI_PROCESSOR_GEOMETRY:
 		ring_outputs = true;
 		break;
+	case TGSI_PROCESSOR_TESS_CTRL:
+		shader->tcs_prim_mode = key.tcs.prim_mode;
+		break;
+	case TGSI_PROCESSOR_TESS_EVAL:
+		shader->tes_as_es = key.tes.as_es;
+		if (shader->tes_as_es)
+			ring_outputs = true;
+		break;
 	case TGSI_PROCESSOR_FRAGMENT:
 		shader->two_side = key.ps.color_two_side;
 		break;
@@ -1946,7 +1955,7 @@ static int r600_shader_from_tgsi(struct r600_context *rctx,
 		break;
 	}
 
-	if (shader->vs_as_es) {
+	if (shader->vs_as_es || shader->tes_as_es) {
 		ctx.gs_for_vs = &rctx->gs_shader->current->shader;
 	} else {
 		ctx.gs_for_vs = NULL;
@@ -2357,7 +2366,7 @@ static int r600_shader_from_tgsi(struct r600_context *rctx,
 	convert_edgeflag_to_int(&ctx);
 
 	if (ring_outputs) {
-		if (shader->vs_as_es) {
+		if (shader->vs_as_es || shader->tes_as_es) {
 			ctx.gs_export_gpr_tregs[0] = r600_get_temp(&ctx);
 			ctx.gs_export_gpr_tregs[1] = -1;
 			ctx.gs_export_gpr_tregs[2] = -1;
diff --git a/src/gallium/drivers/r600/r600_shader.h b/src/gallium/drivers/r600/r600_shader.h
index 2040f732bf5..398e7da7666 100644
--- a/src/gallium/drivers/r600/r600_shader.h
+++ b/src/gallium/drivers/r600/r600_shader.h
@@ -30,6 +30,16 @@
 extern "C" {
 #endif
 
+/* Valid shader configurations:
+ *
+ * API shaders       VS | TCS | TES | GS |pass| PS
+ * are compiled as:     |     |     |    |thru|
+ *                      |     |     |    |    |
+ * Only VS & PS:     VS | --  | --  | -- | -- | PS
+ * With GS:          ES | --  | --  | GS | VS | PS
+ * With Tessel.:     LS | HS  | VS  | -- | -- | PS
+ * With both:        LS | HS  | ES  | GS | VS | PS
+ */
 
 struct r600_shader_io {
 	unsigned		name;
@@ -86,7 +96,10 @@ struct r600_shader {
 	unsigned		max_arrays;
 	unsigned		num_arrays;
 	unsigned		vs_as_es;
+	unsigned		vs_as_ls;
 	unsigned		vs_as_gs_a;
+	unsigned                tes_as_es;
+	unsigned                tcs_prim_mode;
 	unsigned                ps_prim_id_input;
 	struct r600_shader_array * arrays;
 
@@ -102,8 +115,15 @@ union r600_shader_key {
 	struct {
 		unsigned	prim_id_out:8;
 		unsigned	as_es:1; /* export shader */
+		unsigned	as_ls:1; /* local shader */
 		unsigned	as_gs_a:1;
 	} vs;
+	struct {
+		unsigned	as_es:1;
+	} tes;
+	struct {
+		unsigned	prim_mode:3;
+	} tcs;
 };
 
 struct r600_shader_array {
diff --git a/src/gallium/drivers/r600/r600_state_common.c b/src/gallium/drivers/r600/r600_state_common.c
index 05afa23907a..961609a2e5f 100644
--- a/src/gallium/drivers/r600/r600_state_common.c
+++ b/src/gallium/drivers/r600/r600_state_common.c
@@ -743,7 +743,10 @@ static inline union r600_shader_key r600_shader_selector_key(struct pipe_context
 
 	switch (sel->type) {
 	case PIPE_SHADER_VERTEX: {
-		key.vs.as_es = (rctx->gs_shader != NULL);
+		key.vs.as_ls = (rctx->tes_shader != NULL);
+		if (!key.vs.as_ls)
+			key.vs.as_es = (rctx->gs_shader != NULL);
+
 		if (rctx->ps_shader->current->shader.gs_prim_id_input && !rctx->gs_shader) {
 			key.vs.as_gs_a = true;
 			key.vs.prim_id_out = rctx->ps_shader->current->shader.input[rctx->ps_shader->current->shader.ps_prim_id_input].spi_sid;
@@ -763,6 +766,12 @@ static inline union r600_shader_key r600_shader_selector_key(struct pipe_context
 			key.ps.nr_cbufs = 2;
 		break;
 	}
+	case PIPE_SHADER_TESS_EVAL:
+		key.tes.as_es = (rctx->gs_shader != NULL);
+		break;
+	case PIPE_SHADER_TESS_CTRL:
+		key.tcs.prim_mode = rctx->tes_shader->info.properties[TGSI_PROPERTY_TES_PRIM_MODE];
+		break;
 	default:
 		assert(0);
 	}