diff options
| author | Grigori Goronzy <[email protected]> | 2015-05-12 02:22:12 +0200 |
|---|---|---|
| committer | Grigori Goronzy <[email protected]> | 2015-05-24 01:14:48 +0200 |
| commit | 5c495e86388b55af067677e8608eb124a5d70d29 (patch) | |
| tree | 4831d1214727df07ae98eab15c2d90a2b3f378d0 | |
| parent | c922758685932e86d935972980df3be22d7b2fdf (diff) | |
clover: implement CL_MEM_ALLOC_HOST_PTR
This flag is typically used to request pinned host memory, to avoid
any copies between GPU and CPU.
This improves throughput with an older OpenCL app which I unfortunately
can't publish due to its licensing.
Reviewed-by: Francisco Jerez <[email protected]>
| -rw-r--r-- | src/gallium/state_trackers/clover/core/resource.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/clover/core/resource.cpp b/src/gallium/state_trackers/clover/core/resource.cpp index bcf87e15480..8ed4c4284e1 100644 --- a/src/gallium/state_trackers/clover/core/resource.cpp +++ b/src/gallium/state_trackers/clover/core/resource.cpp @@ -137,6 +137,10 @@ root_resource::root_resource(clover::device &dev, memory_obj &obj, PIPE_BIND_TRANSFER_READ | PIPE_BIND_TRANSFER_WRITE); + if (obj.flags() & CL_MEM_ALLOC_HOST_PTR) { + info.usage = PIPE_USAGE_STAGING; + } + pipe = dev.pipe->resource_create(dev.pipe, &info); if (!pipe) throw error(CL_OUT_OF_RESOURCES); |