[Mesa-dev] [PATCH 1/2] clover: Return the minimum required value for CL_DEVICE_SINGLE_FP_CONFIG v2

Tom Stellard thomas.stellard at amd.com
Fri Mar 6 07:53:25 PST 2015


This means dropping CL_FP_DENORM from the current return value.

v2:
  - Add comments about minimum values for OpenCL 1.2.
---
 src/gallium/state_trackers/clover/api/device.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/gallium/state_trackers/clover/api/device.cpp b/src/gallium/state_trackers/clover/api/device.cpp
index b1f556f..b79997f 100644
--- a/src/gallium/state_trackers/clover/api/device.cpp
+++ b/src/gallium/state_trackers/clover/api/device.cpp
@@ -201,8 +201,11 @@ clGetDeviceInfo(cl_device_id d_dev, cl_device_info param,
       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, CL_FP_INF_NAN
+      // is no longer required and nothing is required for custom devices.
       buf.as_scalar<cl_device_fp_config>() =
-         CL_FP_DENORM | CL_FP_INF_NAN | CL_FP_ROUND_TO_NEAREST;
+         CL_FP_INF_NAN | CL_FP_ROUND_TO_NEAREST;
       break;
 
    case CL_DEVICE_DOUBLE_FP_CONFIG:
-- 
2.0.4



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