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[UR][L0] Enable support for using L0 spec External Semaphores #17671

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Merged
merged 6 commits into from
Mar 27, 2025
Merged

[UR][L0] Enable support for using L0 spec External Semaphores #17671

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a1c10ba
[UR][L0] Enable support for using L0 spec External Semaphores
nrspruit Mar 26, 2025
94c2158
Fixed formatting
nrspruit Mar 26, 2025
869d5ec
[UR][L0] Update to directly use the new apis if they exist
nrspruit Mar 26, 2025
b4ddb8d
Handle translating all events given Exp
nrspruit Mar 26, 2025
049df6d
Fix comment
nrspruit Mar 27, 2025
49d641e
Fix invalid symbols
nrspruit Mar 27, 2025
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42 changes: 40 additions & 2 deletions unified-runtime/source/adapters/level_zero/platform.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -227,6 +227,7 @@ ur_result_t ur_platform_handle_t_::initialize() {

bool MutableCommandListSpecExtensionSupported = false;
bool ZeIntelExternalSemaphoreExtensionSupported = false;
bool ZeExternalSemaphoreExtensionSupported = false;
bool ZeImmediateCommandListAppendExtensionFound = false;
for (auto &extension : ZeExtensions) {
// Check if global offset extension is available
Expand Down Expand Up @@ -267,13 +268,20 @@ ur_result_t ur_platform_handle_t_::initialize() {
MutableCommandListSpecExtensionSupported = true;
}
}
// Check if extension is available for External Sempahores
// Check if extension is available for Exp External Sempahores
if (strncmp(extension.name, ZE_INTEL_EXTERNAL_SEMAPHORE_EXP_NAME,
strlen(ZE_INTEL_EXTERNAL_SEMAPHORE_EXP_NAME) + 1) == 0) {
if (extension.version == ZE_EXTERNAL_SEMAPHORE_EXP_VERSION_1_0) {
ZeIntelExternalSemaphoreExtensionSupported = true;
}
}
// Check if extension is available for Spec External Sempahores
if (strncmp(extension.name, ZE_EXTERNAL_SEMAPHORES_EXTENSION_NAME,
strlen(ZE_EXTERNAL_SEMAPHORES_EXTENSION_NAME) + 1) == 0) {
if (extension.version == ZE_EXTERNAL_SEMAPHORE_EXT_VERSION_1_0) {
ZeExternalSemaphoreExtensionSupported = true;
}
}
if (strncmp(extension.name, ZE_EU_COUNT_EXT_NAME,
strlen(ZE_EU_COUNT_EXT_NAME) + 1) == 0) {
if (extension.version == ZE_EU_COUNT_EXT_VERSION_1_0) {
Expand Down Expand Up @@ -323,7 +331,37 @@ ur_result_t ur_platform_handle_t_::initialize() {
// If yes, then set up L0 API pointers if the platform supports it.
ZeUSMImport.setZeUSMImport(this);

if (ZeIntelExternalSemaphoreExtensionSupported) {
if (ZeExternalSemaphoreExtensionSupported) {
ZeExternalSemaphoreExt.Supported |=
(ZE_CALL_NOCHECK(
zeDriverGetExtensionFunctionAddress,
(ZeDriver, "zeDeviceImportExternalSemaphoreExt",
reinterpret_cast<void **>(
&ZeExternalSemaphoreExt.zexImportExternalSemaphoreExp))) ==
0);
ZeExternalSemaphoreExt.Supported |=
(ZE_CALL_NOCHECK(
zeDriverGetExtensionFunctionAddress,
(ZeDriver, "zeCommandListAppendWaitExternalSemaphoreExt",
reinterpret_cast<void **>(
&ZeExternalSemaphoreExt
.zexCommandListAppendWaitExternalSemaphoresExp))) == 0);
ZeExternalSemaphoreExt.Supported |=
(ZE_CALL_NOCHECK(
zeDriverGetExtensionFunctionAddress,
(ZeDriver, "zeCommandListAppendSignalExternalSemaphoreExt",
reinterpret_cast<void **>(
&ZeExternalSemaphoreExt
.zexCommandListAppendSignalExternalSemaphoresExp))) ==
0);
ZeExternalSemaphoreExt.Supported |=
(ZE_CALL_NOCHECK(zeDriverGetExtensionFunctionAddress,
(ZeDriver, "zeDeviceReleaseExternalSemaphoreExt",
reinterpret_cast<void **>(
&ZeExternalSemaphoreExt
.zexDeviceReleaseExternalSemaphoreExp))) ==
0);
} else if (ZeIntelExternalSemaphoreExtensionSupported) {
ZeExternalSemaphoreExt.Supported |=
(ZE_CALL_NOCHECK(
zeDriverGetExtensionFunctionAddress,
Expand Down
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