Temp patch for mesa to fix Arm64 AmdGPU corruption

0001-radeonsi-Temporary-patch-to-fix-corruption-with-pers.patch

From c174f3201f58f57571f5676f07041eb50060d181 Mon Sep 17 00:00:00 2001
From: Jon Nettleton <[email protected]>
Date: Tue, 14 Jul 2020 15:01:42 +0200
Subject: [PATCH] radeonsi: Temporary patch to fix corruption with persitent
 buffers

Until further debugging is done set kernel_flushes_hdp_before_ib to
false so persistent buffers are allocated from GTT memory.  I have
an open issue for this in mesa that perhaps this should become a
runtime DRI option that can be enabled.

Signed-off-by: Jon <[email protected]>
---
 src/gallium/winsys/amdgpu/drm/amdgpu_winsys.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/gallium/winsys/amdgpu/drm/amdgpu_winsys.c b/src/gallium/winsys/amdgpu/drm/amdgpu_winsys.c
index 7ac2a61bdfd..e0da35f37bc 100644
--- a/src/gallium/winsys/amdgpu/drm/amdgpu_winsys.c
+++ b/src/gallium/winsys/amdgpu/drm/amdgpu_winsys.c
@@ -117,6 +117,10 @@ static bool do_winsys_init(struct amdgpu_winsys *ws,
                               strstr(debug_get_option("AMD_DEBUG", ""), "zerovram") != NULL ||
                               driQueryOptionb(config->options, "radeonsi_zerovram");
 
+   #if defined(__aarch64__)
+      ws->info.kernel_flushes_hdp_before_ib = false;
+   #endif
+
    return true;
 
 fail:
-- 
2.26.2