File U_radeonsi-vcn-Add-decode-DPB-buffers-as-CS-dependency.patch of Package Mesa

From 8b35da91b23afc65256b78a59d116fd09544cd28 Mon Sep 17 00:00:00 2001
From: David Rosca <david.rosca@amd.com>
Date: Mon, 5 Aug 2024 09:14:37 +0200
Subject: [PATCH] radeonsi/vcn: Add decode DPB buffers as CS dependency

This is needed to ensure correct synchronization in kernel eg. when it
moves the buffers between VRAM and GTT.

Reviewed-by: Boyuan Zhang <Boyuan.Zhang@amd.com>
(cherry picked from commit 0c024bbe641b092bbbc751baae54a37642794de0)

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30537>
---
 src/gallium/drivers/radeonsi/radeon_vcn_dec.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/gallium/drivers/radeonsi/radeon_vcn_dec.c b/src/gallium/drivers/radeonsi/radeon_vcn_dec.c
index ede5f9d7c1a5..9e3d0b88493b 100644
--- a/src/gallium/drivers/radeonsi/radeon_vcn_dec.c
+++ b/src/gallium/drivers/radeonsi/radeon_vcn_dec.c
@@ -1838,6 +1838,7 @@ static unsigned rvcn_dec_dynamic_dpb_t2_message(struct radeon_decoder *dec, rvcn
                RVID_ERR("Ref list from application is incorrect, using dummy buffer instead.\n");
                addr = dec->ws->buffer_get_virtual_address(dummy->dpb.res->buf);
             }
+            dec->ws->cs_add_buffer(&dec->cs, d->dpb.res->buf, RADEON_USAGE_READWRITE | RADEON_USAGE_SYNCHRONIZED, RADEON_DOMAIN_VRAM);
             dynamic_dpb_t2->dpbAddrLo[i] = addr;
             dynamic_dpb_t2->dpbAddrHi[i] = addr >> 32;
             ++dynamic_dpb_t2->dpbArraySize;
-- 
2.43.0