[Mesa-dev] [PATCH 3/3] clover: Query drivers for max clock frequency

[Bruno Jiménez]

From: Tom Stellard <thomas.stellard at amd.com>

v2: PIPE_COMPUTE_CAP_MAX_CLOCK_FREQUENCY instead of
    PIPE_COMPUTE_MAX_CLOCK_FREQUENCY

Signed-off-by: Igor Gnatenko <i.gnatenko.brain at gmail.com>

clover: Correct the returned value for max_clock_frequency

According to OpenCL 1.1 spec, the returned value must be in MHz, and we
were returning it in kHz
---
 src/gallium/state_trackers/clover/api/device.cpp  | 2 +-
 src/gallium/state_trackers/clover/core/device.cpp | 6 ++++++
 src/gallium/state_trackers/clover/core/device.hpp | 1 +
 3 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/gallium/state_trackers/clover/api/device.cpp b/src/gallium/state_trackers/clover/api/device.cpp
index 7bc8d0a..f980845 100644
--- a/src/gallium/state_trackers/clover/api/device.cpp
+++ b/src/gallium/state_trackers/clover/api/device.cpp
@@ -122,7 +122,7 @@ clGetDeviceInfo(cl_device_id d_dev, cl_device_info param,
       break;
 
    case CL_DEVICE_MAX_CLOCK_FREQUENCY:
-      buf.as_scalar<cl_uint>() = 0;
+      buf.as_scalar<cl_uint>() = dev.max_clock_frequency();
       break;
 
    case CL_DEVICE_ADDRESS_BITS:
diff --git a/src/gallium/state_trackers/clover/core/device.cpp b/src/gallium/state_trackers/clover/core/device.cpp
index 2c5f9b7..4ae575f 100644
--- a/src/gallium/state_trackers/clover/core/device.cpp
+++ b/src/gallium/state_trackers/clover/core/device.cpp
@@ -154,6 +154,12 @@ device::max_mem_alloc_size() const {
                                       PIPE_COMPUTE_CAP_MAX_MEM_ALLOC_SIZE)[0];
 }
 
+cl_uint
+device::max_clock_frequency() const {
+   return get_compute_param<uint32_t>(pipe,
+                                      PIPE_COMPUTE_CAP_MAX_CLOCK_FREQUENCY)[0] / 1000;
+}
+
 std::vector<size_t>
 device::max_block_size() const {
    auto v = 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 433ac81..3662c6b 100644
--- a/src/gallium/state_trackers/clover/core/device.hpp
+++ b/src/gallium/state_trackers/clover/core/device.hpp
@@ -61,6 +61,7 @@ namespace clover {
       cl_uint max_const_buffers() const;
       size_t max_threads_per_block() const;
       cl_ulong max_mem_alloc_size() const;
+      cl_uint max_clock_frequency() const;
 
       std::vector<size_t> max_block_size() const;
       std::string device_name() const;
-- 
1.9.2