0001-radv-Optimize-rebinding-the-same-descriptor-set-v2.patch

From ead48c30b96cb585584dce766822fac09a753f98 Mon Sep 17 00:00:00 2001
From: Philip Rebohle <philip.rebohle@tu-dortmund.de>
Date: Tue, 30 Jul 2019 13:36:09 +0200
Subject: [PATCH] radv: Optimize rebinding the same descriptor set (v2)

Same idea as in 02a43edf186cb9998741ba765cb948bb238a122d, but
still call radv_set_descriptor_set, only skip BO list iteration.

Fixes performance issues in Wolfenstein Youngblood.
---
 src/amd/vulkan/radv_cmd_buffer.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/amd/vulkan/radv_cmd_buffer.c b/src/amd/vulkan/radv_cmd_buffer.c
index dd22b8e9ef3..71f9376d159 100644
--- a/src/amd/vulkan/radv_cmd_buffer.c
+++ b/src/amd/vulkan/radv_cmd_buffer.c
@@ -3270,9 +3270,18 @@ radv_bind_descriptor_set(struct radv_cmd_buffer *cmd_buffer,
 			 struct radv_descriptor_set *set, unsigned idx)
 {
 	struct radeon_winsys *ws = cmd_buffer->device->ws;
+	struct radv_descriptor_state *descriptors_state =
+		radv_get_descriptors_state(cmd_buffer, bind_point);
+	bool changed;
+
+	changed = descriptors_state->sets[idx] != set ||
+		!(descriptors_state->valid & (1u << idx));
 
 	radv_set_descriptor_set(cmd_buffer, bind_point, set, idx);
 
+	if (!changed)
+		return;
+
 	assert(set);
 	assert(!(set->layout->flags & VK_DESCRIPTOR_SET_LAYOUT_CREATE_PUSH_DESCRIPTOR_BIT_KHR));
 
-- 
2.22.0