ac/gpu_info: add has_indirect_compute_dispatch

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

4 files changed, 11 insertions, 13 deletions

diff --git a/src/amd/common/ac_gpu_info.c b/src/amd/common/ac_gpu_info.c
index 4eeb6042ee..5a39577246 100644
--- a/src/amd/common/ac_gpu_info.c
+++ b/src/amd/common/ac_gpu_info.c
@@ -327,6 +327,7 @@ bool ac_query_gpu_info(int fd, amdgpu_device_handle dev,
 	/* DRM 3.1.0 doesn't flush TC for VI correctly. */
 	info->kernel_flushes_tc_l2_after_ib = info->chip_class != VI ||
 					      info->drm_minor >= 2;
+	info->has_indirect_compute_dispatch = true;
 
 	info->num_render_backends = amdinfo->rb_pipes;
 	/* The value returned by the kernel driver was wrong. */
@@ -483,6 +484,7 @@ void ac_print_gpu_info(struct radeon_info *info)
 	printf("    has_eqaa_surface_allocator = %u\n", info->has_eqaa_surface_allocator);
 	printf("    has_format_bc1_through_bc7 = %u\n", info->has_format_bc1_through_bc7);
 	printf("    kernel_flushes_tc_l2_after_ib = %u\n", info->kernel_flushes_tc_l2_after_ib);
+	printf("    has_indirect_compute_dispatch = %u\n", info->has_indirect_compute_dispatch);
 
 	printf("Shader core info:\n");
 	printf("    max_shader_clock = %i\n", info->max_shader_clock);
diff --git a/src/amd/common/ac_gpu_info.h b/src/amd/common/ac_gpu_info.h
index 5e404714db..d5d10c6010 100644
--- a/src/amd/common/ac_gpu_info.h
+++ b/src/amd/common/ac_gpu_info.h
@@ -105,6 +105,7 @@ struct radeon_info {
 	bool                        has_eqaa_surface_allocator;
 	bool                        has_format_bc1_through_bc7;
 	bool                        kernel_flushes_tc_l2_after_ib;
+	bool                        has_indirect_compute_dispatch;
 
 	/* Shader cores. */
 	uint32_t                    r600_max_quad_pipes; /* wave size / 16 */
diff --git a/src/gallium/drivers/radeonsi/si_get.c b/src/gallium/drivers/radeonsi/si_get.c
index cd3e63c73d..0e7d28e334 100644
--- a/src/gallium/drivers/radeonsi/si_get.c
+++ b/src/gallium/drivers/radeonsi/si_get.c
@@ -83,16 +83,6 @@ const char *si_get_family_name(const struct si_screen *sscreen)
 	}
 }
 
-static bool si_have_tgsi_compute(struct si_screen *sscreen)
-{
-	/* Old kernels disallowed some register writes for SI
-	 * that are used for indirect dispatches. */
-	return (sscreen->info.chip_class >= CIK ||
-		sscreen->info.drm_major == 3 ||
-		(sscreen->info.drm_major == 2 &&
-		 sscreen->info.drm_minor >= 45));
-}
-
 static int si_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
 {
 	struct si_screen *sscreen = (struct si_screen *)pscreen;
@@ -225,7 +215,7 @@ static int si_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
 		return 4;
 
 	case PIPE_CAP_GLSL_FEATURE_LEVEL:
-		if (si_have_tgsi_compute(sscreen))
+		if (sscreen->info.has_indirect_compute_dispatch)
 			return 450;
 		return 420;
 
@@ -294,7 +284,7 @@ static int si_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
 		return sscreen->info.has_fence_to_handle;
 
 	case PIPE_CAP_QUERY_BUFFER_OBJECT:
-		return si_have_tgsi_compute(sscreen);
+		return sscreen->info.has_indirect_compute_dispatch;
 
 	case PIPE_CAP_DRAW_PARAMETERS:
 	case PIPE_CAP_MULTI_DRAW_INDIRECT:
@@ -408,7 +398,7 @@ static int si_get_shader_param(struct pipe_screen* pscreen,
 		case PIPE_SHADER_CAP_SUPPORTED_IRS: {
 			int ir = 1 << PIPE_SHADER_IR_NATIVE;
 
-			if (si_have_tgsi_compute(sscreen))
+			if (sscreen->info.has_indirect_compute_dispatch)
 				ir |= 1 << PIPE_SHADER_IR_TGSI;
 
 			return ir;
diff --git a/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c b/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c
index 1b029e9496..129d4f46f5 100644
--- a/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c
+++ b/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c
@@ -539,6 +539,11 @@ static bool do_winsys_init(struct radeon_drm_winsys *ws)
     ws->info.has_eqaa_surface_allocator = false;
     ws->info.has_format_bc1_through_bc7 = ws->info.drm_minor >= 31;
     ws->info.kernel_flushes_tc_l2_after_ib = true;
+    /* Old kernels disallowed register writes via COPY_DATA
+     * that are used for indirect compute dispatches. */
+    ws->info.has_indirect_compute_dispatch = ws->info.chip_class == CIK ||
+                                             (ws->info.chip_class == SI &&
+                                              ws->info.drm_minor >= 45);
 
     ws->check_vm = strstr(debug_get_option("R600_DEBUG", ""), "check_vm") != NULL;