diff options
| author | Jan Vesely <[email protected]> | 2017-09-01 17:48:39 -0400 |
|---|---|---|
| committer | Jan Vesely <[email protected]> | 2017-09-18 10:45:02 -0400 |
| commit | fdf0f1db22d1a85abb38131c6f0757eabcdad80a (patch) | |
| tree | 600fc84f0704753869262d3c795d234d55eb3fe0 /src/gallium/state_trackers | |
| parent | 7b2c5547c31360c798db00ef4aa2d2f852363bca (diff) | |
clover: Query and export half precision support
v2: PIPE_CAP_HALFS -> PIPE_SHADER_CAP_FP16
has_halfs -> has_halves
Signed-off-by: Jan Vesely <[email protected]>
Reviewed-by: Francisco Jerez <[email protected]>
Diffstat (limited to 'src/gallium/state_trackers')
| -rw-r--r-- | src/gallium/state_trackers/clover/api/device.cpp | 14 | ||||
| -rw-r--r-- | src/gallium/state_trackers/clover/core/device.cpp | 6 | ||||
| -rw-r--r-- | src/gallium/state_trackers/clover/core/device.hpp | 1 |
3 files changed, 18 insertions, 3 deletions
diff --git a/src/gallium/state_trackers/clover/api/device.cpp b/src/gallium/state_trackers/clover/api/device.cpp index b202102389f..26e88aadc73 100644 --- a/src/gallium/state_trackers/clover/api/device.cpp +++ b/src/gallium/state_trackers/clover/api/device.cpp @@ -150,7 +150,7 @@ clGetDeviceInfo(cl_device_id d_dev, cl_device_info param, break; case CL_DEVICE_PREFERRED_VECTOR_WIDTH_HALF: - buf.as_scalar<cl_uint>() = 0; + buf.as_scalar<cl_uint>() = dev.has_halves() ? 8 : 0; break; case CL_DEVICE_MAX_CLOCK_FREQUENCY: @@ -213,6 +213,13 @@ clGetDeviceInfo(cl_device_id d_dev, cl_device_info param, buf.as_scalar<cl_uint>() = 128; break; + case CL_DEVICE_HALF_FP_CONFIG: + // This is the "mandated minimum half precision floating-point + // capability" for OpenCL 1.x. + buf.as_scalar<cl_device_fp_config>() = + CL_FP_INF_NAN | CL_FP_ROUND_TO_NEAREST; + break; + case CL_DEVICE_SINGLE_FP_CONFIG: // This is the "mandated minimum single precision floating-point // capability" for OpenCL 1.1. In OpenCL 1.2, nothing is required for @@ -329,7 +336,8 @@ clGetDeviceInfo(cl_device_id d_dev, cl_device_info param, " cl_khr_local_int32_base_atomics" " cl_khr_local_int32_extended_atomics" " cl_khr_byte_addressable_store" - + std::string(dev.has_doubles() ? " cl_khr_fp64" : ""); + + std::string(dev.has_doubles() ? " cl_khr_fp64" : "") + + std::string(dev.has_halves() ? " cl_khr_fp16" : ""); break; case CL_DEVICE_PLATFORM: @@ -365,7 +373,7 @@ clGetDeviceInfo(cl_device_id d_dev, cl_device_info param, break; case CL_DEVICE_NATIVE_VECTOR_WIDTH_HALF: - buf.as_scalar<cl_uint>() = 0; + buf.as_scalar<cl_uint>() = dev.has_halves() ? 8 : 0; break; case CL_DEVICE_OPENCL_C_VERSION: diff --git a/src/gallium/state_trackers/clover/core/device.cpp b/src/gallium/state_trackers/clover/core/device.cpp index fc74bd51a9e..c0ee0acaaf9 100644 --- a/src/gallium/state_trackers/clover/core/device.cpp +++ b/src/gallium/state_trackers/clover/core/device.cpp @@ -191,6 +191,12 @@ device::has_doubles() const { } bool +device::has_halves() const { + return pipe->get_shader_param(pipe, PIPE_SHADER_COMPUTE, + PIPE_SHADER_CAP_FP16); +} + +bool device::has_unified_memory() const { return pipe->get_param(pipe, PIPE_CAP_UMA); } diff --git a/src/gallium/state_trackers/clover/core/device.hpp b/src/gallium/state_trackers/clover/core/device.hpp index 4e11519421a..c61be790a94 100644 --- a/src/gallium/state_trackers/clover/core/device.hpp +++ b/src/gallium/state_trackers/clover/core/device.hpp @@ -67,6 +67,7 @@ namespace clover { cl_uint max_compute_units() const; bool image_support() const; bool has_doubles() const; + bool has_halves() const; bool has_unified_memory() const; cl_uint mem_base_addr_align() const; |