From 302f53dc20593e72848f685643a34ea83d98bb65 Mon Sep 17 00:00:00 2001
From: Tom Stellard <thomas.stellard@amd.com>
Date: Thu, 25 Oct 2012 13:50:10 -0400
Subject: radeonsi: Add compute support v3
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v2:
  - Only dump shaders when env variable is set.

v3:
  - Don't emit VGT registers

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com
---
 src/gallium/drivers/radeonsi/radeonsi_pipe.c | 61 +++++++++++++++++++++++++++-
 1 file changed, 60 insertions(+), 1 deletion(-)

(limited to 'src/gallium/drivers/radeonsi/radeonsi_pipe.c')

diff --git a/src/gallium/drivers/radeonsi/radeonsi_pipe.c b/src/gallium/drivers/radeonsi/radeonsi_pipe.c
index ce6fabba65c..f668d8b9d6e 100644
--- a/src/gallium/drivers/radeonsi/radeonsi_pipe.c
+++ b/src/gallium/drivers/radeonsi/radeonsi_pipe.c
@@ -217,6 +217,7 @@ static struct pipe_context *r600_create_context(struct pipe_screen *screen, void
 	r600_init_query_functions(rctx);
 	r600_init_context_resource_functions(rctx);
 	si_init_surface_functions(rctx);
+	si_init_compute_functions(rctx);
 
 	rctx->context.create_video_decoder = vl_create_decoder;
 	rctx->context.create_video_buffer = vl_video_buffer_create;
@@ -342,6 +343,7 @@ static int r600_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
 	case PIPE_CAP_NPOT_TEXTURES:
         case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 	case PIPE_CAP_TGSI_INSTANCEID:
+	case PIPE_CAP_COMPUTE:
 		return 1;
 	case PIPE_CAP_TGSI_TEXCOORD:
 		return 0;
@@ -366,7 +368,6 @@ static int r600_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
 	case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 	case PIPE_CAP_USER_VERTEX_BUFFERS:
 	case PIPE_CAP_TEXTURE_MULTISAMPLE:
-	case PIPE_CAP_COMPUTE:
 	case PIPE_CAP_QUERY_TIMESTAMP:
 	case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
 	case PIPE_CAP_CUBE_MAP_ARRAY:
@@ -450,6 +451,13 @@ static int r600_get_shader_param(struct pipe_screen* pscreen, unsigned shader, e
 	case PIPE_SHADER_GEOMETRY:
 		/* TODO: support and enable geometry programs */
 		return 0;
+	case PIPE_SHADER_COMPUTE:
+		switch (param) {
+		case PIPE_SHADER_CAP_PREFERRED_IR:
+			return PIPE_SHADER_IR_LLVM;
+		default:
+			return 0;
+		}
 	default:
 		/* TODO: support tessellation */
 		return 0;
@@ -516,6 +524,56 @@ static int r600_get_video_param(struct pipe_screen *screen,
 	}
 }
 
+static int r600_get_compute_param(struct pipe_screen *screen,
+        enum pipe_compute_cap param,
+        void *ret)
+{
+	struct r600_screen *rscreen = (struct r600_screen *)screen;
+	//TODO: select these params by asic
+	switch (param) {
+	case PIPE_COMPUTE_CAP_IR_TARGET: {
+		const char *gpu = r600_get_llvm_processor_name(rscreen->family);
+	        if (ret) {
+			sprintf(ret, "%s-r600--", gpu);
+		}
+		return (8 + strlen(gpu)) * sizeof(char);
+	}
+	case PIPE_COMPUTE_CAP_GRID_DIMENSION:
+		if (ret) {
+			uint64_t * grid_dimension = ret;
+			grid_dimension[0] = 3;
+		}
+		return 1 * sizeof(uint64_t);
+	case PIPE_COMPUTE_CAP_MAX_GRID_SIZE:
+		if (ret) {
+			uint64_t * grid_size = ret;
+			grid_size[0] = 65535;
+			grid_size[1] = 65535;
+			grid_size[2] = 1;
+		}
+		return 3 * sizeof(uint64_t) ;
+
+	case PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE:
+		if (ret) {
+			uint64_t * block_size = ret;
+			block_size[0] = 256;
+			block_size[1] = 256;
+			block_size[2] = 256;
+		}
+		return 3 * sizeof(uint64_t);
+	case PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK:
+		if (ret) {
+			uint64_t * max_threads_per_block = ret;
+			*max_threads_per_block = 256;
+		}
+		return sizeof(uint64_t);
+
+	default:
+		fprintf(stderr, "unknown PIPE_COMPUTE_CAP %d\n", param);
+		return 0;
+	}
+}
+
 static void r600_destroy_screen(struct pipe_screen* pscreen)
 {
 	struct r600_screen *rscreen = (struct r600_screen *)pscreen;
@@ -727,6 +785,7 @@ struct pipe_screen *radeonsi_screen_create(struct radeon_winsys *ws)
 	rscreen->screen.get_shader_param = r600_get_shader_param;
 	rscreen->screen.get_paramf = r600_get_paramf;
 	rscreen->screen.get_video_param = r600_get_video_param;
+	rscreen->screen.get_compute_param = r600_get_compute_param;
 	rscreen->screen.is_format_supported = si_is_format_supported;
 	rscreen->screen.is_video_format_supported = vl_video_buffer_is_format_supported;
 	rscreen->screen.context_create = r600_create_context;
-- 
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