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UUIDs generation

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Related-To: NEO-4964

Change-Id: I0ef5912fb744788f713803f539551c7b0b134208
Signed-off-by: Mateusz Hoppe <mateusz.hoppe@intel.com>
This commit is contained in:
Mateusz Hoppe
2020-09-08 17:33:33 +02:00
committed by sys_ocldev
parent d5f7ad616d
commit 0e7ec82577
4 changed files with 34 additions and 0 deletions
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15
shared/source/os_interface/linux/drm_neo.cpp
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@@ -473,6 +473,21 @@ uint32_t Drm::getVirtualMemoryAddressSpace(uint32_t vmId) {
return 0;
}
std::string Drm::generateUUID() {
const char uuidString[] = "00000000-0000-0000-%04" SCNx64 "-%012" SCNx64;
char buffer[36 + 1] = "00000000-0000-0000-0000-000000000000";
uuid++;
UNRECOVERABLE_IF(uuid == 0xFFFFFFFFFFFFFFFF);
uint64_t parts[2] = {0, 0};
parts[0] = uuid & 0xFFFFFFFFFFFF;
parts[1] = (uuid & 0xFFFF000000000000) >> 48;
sprintf(buffer, uuidString, parts[1], parts[0]);
return std::string(buffer, 36);
}
Drm::~Drm() {
destroyVirtualMemoryAddressSpace();
}

2
shared/source/os_interface/linux/drm_neo.h
View File

@@ -123,6 +123,7 @@ class Drm {
protected:
int getQueueSliceCount(drm_i915_gem_context_param_sseu *sseu);
std::string generateUUID();
bool sliceCountChangeSupported = false;
drm_i915_gem_context_param_sseu sseu{};
bool preemptionSupported = false;
@@ -133,6 +134,7 @@ class Drm {
int revisionId = 0;
GTTYPE eGtType = GTTYPE_UNDEFINED;
RootDeviceEnvironment &rootDeviceEnvironment;
uint64_t uuid = 0;
Drm(std::unique_ptr<HwDeviceId> hwDeviceIdIn, RootDeviceEnvironment &rootDeviceEnvironment);
std::unique_ptr<EngineInfo> engineInfo;