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Restrict system memory allocations to certain address range

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Change-Id: Ibe8c1183368ce48f2c820d0f1a71f0b15703ffcd
This commit is contained in:
Zdanowicz, Zbigniew
2018-01-22 16:43:26 +01:00
parent 3532c6373f
commit e42d43953d
19 changed files with 297 additions and 27 deletions
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13
runtime/os_interface/linux/drm_memory_manager.cpp
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@@ -1,5 +1,5 @@
/*
* Copyright (c) 2017, Intel Corporation
* Copyright (c) 2017 - 2018, Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
@@ -21,7 +21,6 @@
*/
#include "runtime/device/device.h"
#include "runtime/helpers/aligned_memory.h"
#include "runtime/helpers/ptr_math.h"
#include "runtime/helpers/options.h"
#include "runtime/os_interface/32bit_memory.h"
@@ -50,13 +49,13 @@ DrmMemoryManager::DrmMemoryManager(Drm *drm, gemCloseWorkerMode mode, bool force
}
if (forcePinAllowed) {
auto mem = ::alignedMalloc(MemoryConstants::pageSize, MemoryConstants::pageSize);
auto mem = alignedMallocWrapper(MemoryConstants::pageSize, MemoryConstants::pageSize);
DEBUG_BREAK_IF(mem == nullptr);
pinBB = allocUserptr(reinterpret_cast<uintptr_t>(mem), MemoryConstants::pageSize, 0, true);
if (!pinBB) {
::alignedFree(mem);
alignedFreeWrapper(mem);
} else {
pinBB->isAllocated = true;
}
@@ -129,7 +128,7 @@ uint32_t DrmMemoryManager::unreference(OCLRT::BufferObject *bo, bool synchronous
}
} else {
::alignedFree(address);
alignedFreeWrapper(address);
}
}
}
@@ -174,7 +173,7 @@ DrmAllocation *DrmMemoryManager::allocateGraphicsMemory(size_t size, size_t alig
// It's needed to prevent overlapping pages with user pointers
size_t cSize = std::max(alignUp(size, minAlignment), minAlignment);
auto res = ::alignedMalloc(cSize, cAlignment);
auto res = alignedMallocWrapper(cSize, cAlignment);
if (!res)
return nullptr;
@@ -182,7 +181,7 @@ DrmAllocation *DrmMemoryManager::allocateGraphicsMemory(size_t size, size_t alig
BufferObject *bo = allocUserptr(reinterpret_cast<uintptr_t>(res), cSize, 0, true);
if (!bo) {
::alignedFree(res);
alignedFreeWrapper(res);
return nullptr;
}