clover, gallium: add PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK

This is not necessarily the product of MAX_BLOCK_SIZE[i].

Reviewed-by: Tom Stellard <[email protected]>
Reviewed-by: Francisco Jerez <[email protected]>

3 files changed, 9 insertions, 1 deletions

diff --git a/src/gallium/state_trackers/clover/api/device.cpp b/src/gallium/state_trackers/clover/api/device.cpp
index 03767519aaf..1a9127bb3d5 100644
--- a/src/gallium/state_trackers/clover/api/device.cpp
+++ b/src/gallium/state_trackers/clover/api/device.cpp
@@ -87,7 +87,8 @@ clGetDeviceInfo(cl_device_id dev, cl_device_info param,
                                      dev->max_block_size());
 
    case CL_DEVICE_MAX_WORK_GROUP_SIZE:
-      return scalar_property<size_t>(buf, size, size_ret, SIZE_MAX);
+      return scalar_property<size_t>(buf, size, size_ret,
+                                     dev->max_threads_per_block());
 
    case CL_DEVICE_PREFERRED_VECTOR_WIDTH_CHAR:
       return scalar_property<cl_uint>(buf, size, size_ret, 16);
diff --git a/src/gallium/state_trackers/clover/core/device.cpp b/src/gallium/state_trackers/clover/core/device.cpp
index 8390f3f4abb..59e43af075d 100644
--- a/src/gallium/state_trackers/clover/core/device.cpp
+++ b/src/gallium/state_trackers/clover/core/device.cpp
@@ -138,6 +138,12 @@ _cl_device_id::max_const_buffers() const {
                                  PIPE_SHADER_CAP_MAX_CONST_BUFFERS);
 }
 
+size_t
+_cl_device_id::max_threads_per_block() const {
+   return get_compute_param<uint64_t>(
+      pipe, PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK)[0];
+}
+
 std::vector<size_t>
 _cl_device_id::max_block_size() const {
    return get_compute_param<uint64_t>(pipe, PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE);
diff --git a/src/gallium/state_trackers/clover/core/device.hpp b/src/gallium/state_trackers/clover/core/device.hpp
index 8f284ba5e42..d10635275b1 100644
--- a/src/gallium/state_trackers/clover/core/device.hpp
+++ b/src/gallium/state_trackers/clover/core/device.hpp
@@ -55,6 +55,7 @@ public:
    cl_ulong max_mem_input() const;
    cl_ulong max_const_buffer_size() const;
    cl_uint max_const_buffers() const;
+   size_t max_threads_per_block() const;
 
    std::vector<size_t> max_block_size() const;
    std::string device_name() const;