From 3baf2703161288169e4466dc308869903ee39682 Mon Sep 17 00:00:00 2001
From: Karol Herbst <kherbst@redhat.com>
Date: Mon, 14 Mar 2022 19:17:31 +0100
Subject: [PATCH] rusticl/mem: use helper context for COPY_HOST_PTR buffers

Signed-off-by: Karol Herbst <kherbst@redhat.com>
Acked-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15439>
---
 src/gallium/frontends/rusticl/core/memory.rs | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/gallium/frontends/rusticl/core/memory.rs b/src/gallium/frontends/rusticl/core/memory.rs
index fff35e1b15d..3de93c146c5 100644
--- a/src/gallium/frontends/rusticl/core/memory.rs
+++ b/src/gallium/frontends/rusticl/core/memory.rs
@@ -73,7 +73,7 @@ impl Mem {
         size: usize,
         host_ptr: *mut c_void,
     ) -> CLResult<Arc<Mem>> {
-        if bit_check(flags, CL_MEM_COPY_HOST_PTR | CL_MEM_ALLOC_HOST_PTR) {
+        if bit_check(flags, CL_MEM_ALLOC_HOST_PTR) {
             println!("host ptr semantics not implemented!");
         }
 
@@ -83,6 +83,13 @@ impl Mem {
             context.create_buffer(size)
         }?;
 
+        if bit_check(flags, CL_MEM_COPY_HOST_PTR) {
+            for (d, r) in &buffer {
+                d.helper_ctx()
+                    .buffer_subdata(r, 0, host_ptr, size.try_into().unwrap());
+            }
+        }
+
         let host_ptr = if bit_check(flags, CL_MEM_USE_HOST_PTR) {
             host_ptr
         } else {