Mesa (master): clover/device: Get device/ host unified memory from pipe driver

[Aaron Watry]

Module: Mesa
Branch: master
Commit: d364ab4a615b762b3684fa292590ef4cfaba9ea8
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=d364ab4a615b762b3684fa292590ef4cfaba9ea8

Author: Aaron Watry <awatry at gmail.com>
Date:   Fri Jun  2 21:51:43 2017 -0500

clover/device: Get device/host unified memory from pipe driver

clinfo no longer reports my discrete GCN card as unified memory

Signed-off-by: Aaron Watry <awatry at gmail.com>
Reviewed-by: Francisco Jerez <currojerez at riseup.net>

---

 src/gallium/state_trackers/clover/api/device.cpp  | 2 +-
 src/gallium/state_trackers/clover/core/device.cpp | 5 +++++
 src/gallium/state_trackers/clover/core/device.hpp | 1 +
 3 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/gallium/state_trackers/clover/api/device.cpp b/src/gallium/state_trackers/clover/api/device.cpp
index a80ca46654..0b33350bb2 100644
--- a/src/gallium/state_trackers/clover/api/device.cpp
+++ b/src/gallium/state_trackers/clover/api/device.cpp
@@ -336,7 +336,7 @@ clGetDeviceInfo(cl_device_id d_dev, cl_device_info param,
       break;
 
    case CL_DEVICE_HOST_UNIFIED_MEMORY:
-      buf.as_scalar<cl_bool>() = CL_TRUE;
+      buf.as_scalar<cl_bool>() = dev.has_unified_memory();
       break;
 
    case CL_DEVICE_NATIVE_VECTOR_WIDTH_CHAR:
diff --git a/src/gallium/state_trackers/clover/core/device.cpp b/src/gallium/state_trackers/clover/core/device.cpp
index 158c9aa696..8dfba1ad9f 100644
--- a/src/gallium/state_trackers/clover/core/device.cpp
+++ b/src/gallium/state_trackers/clover/core/device.cpp
@@ -189,6 +189,11 @@ device::has_doubles() const {
    return pipe->get_param(pipe, PIPE_CAP_DOUBLES);
 }
 
+bool
+device::has_unified_memory() const {
+   return pipe->get_param(pipe, PIPE_CAP_UMA);
+}
+
 std::vector<size_t>
 device::max_block_size() const {
    auto v = get_compute_param<uint64_t>(pipe, ir_format(),
diff --git a/src/gallium/state_trackers/clover/core/device.hpp b/src/gallium/state_trackers/clover/core/device.hpp
index 94a61d1050..7b3353df34 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_unified_memory() const;
 
       std::vector<size_t> max_block_size() const;
       cl_uint subgroup_size() const;