SWDEV-373400 - Lower the threshold of single alloc percent for APUs w/ small VRAM

Change-Id: Ie8e3504a0c468bc44633991cdfde66bcf0b74f06
2023-02-22 15:53:49 +08:00
parent c2abac32c8
commit 35a0855e4e
1 changed files with 7 additions and 0 deletions
@@ -1245,6 +1245,13 @@ bool Device::populateOCLDeviceConstants() {
    assert(global_segment_size > 0);
    info_.globalMemSize_ = static_cast<uint64_t>(global_segment_size);

+    // For APU with vram size <= 512MiB, use a smaller single alloc percentage
+    if (info_.globalMemSize_ <= 536870912) {
+      if (flagIsDefault(GPU_SINGLE_ALLOC_PERCENT)) {
+        GPU_SINGLE_ALLOC_PERCENT = 75;
+      }
+    }
+
    gpuvm_segment_max_alloc_ =
        uint64_t(info_.globalMemSize_ * std::min(GPU_SINGLE_ALLOC_PERCENT, 100u) / 100u);
    assert(gpuvm_segment_max_alloc_ > 0);