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This commit is contained in:
Bernhard Stoeckner
2025-01-27 19:36:56 +01:00
parent 9d0b0414a5
commit 54d69484da
1166 changed files with 318863 additions and 182687 deletions
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32
kernel-open/nvidia-uvm/uvm.h
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@@ -379,6 +379,17 @@ NV_STATUS UvmIsPageableMemoryAccessSupportedOnGpu(const NvProcessorUuid *gpuUuid
// OS state required to register the GPU is malformed, or the partition
// identified by the user handles or its configuration changed.
//
// NV_ERR_NVLINK_FABRIC_NOT_READY:
// (On NvSwitch-connected system) Indicates that the fabric has not been
// configured yet. Caller must retry GPU registration.
//
// NV_ERR_NVLINK_FABRIC_FAILURE:
// (On NvSwitch-connected systems) Indicates that the NvLink fabric
// failed to be configured.
//
// NV_ERR_GPU_MEMORY_ONLINING_FAULURE:
// (On coherent systems) The GPU's memory onlining failed.
//
// NV_ERR_GENERIC:
// Unexpected error. We try hard to avoid returning this error code,
// because it is not very informative.
@@ -1317,9 +1328,8 @@ NV_STATUS UvmCleanUpZombieResources(void);
//
// NV_ERR_INVALID_ARGUMENT:
// perGpuAttribs is NULL but gpuAttribsCount is non-zero or vice-versa,
// or caching is requested on more than one GPU.
// The Confidential Computing feature is enabled and the perGpuAttribs
// list is empty.
// or caching is requested on more than one GPU, or (in Confidential
// Computing only) the perGpuAttribs list is empty.
//
// NV_ERR_NOT_SUPPORTED:
// The current process is not the one which called UvmInitialize, and
@@ -1469,7 +1479,9 @@ NV_STATUS UvmAllocDeviceP2P(NvProcessorUuid gpuUuid,
// If read duplication is enabled on any pages in the VA range, then those pages
// are read duplicated at the destination processor, leaving the source copy, if
// present, intact with only its mapping changed to read-only if it wasn't
// already mapped that way.
// already mapped that way. The exception to this behavior is migrating pages
// between different NUMA nodes, in which case the pages are migrated to the
// destination node and a read-only mapping is created to the migrated pages.
//
// Pages in the VA range are migrated even if their preferred location is set to
// a processor other than the destination processor.
@@ -2212,7 +2224,9 @@ NV_STATUS UvmMapDynamicParallelismRegion(void *base,
//
// If UvmMigrate, UvmMigrateAsync or UvmMigrateRangeGroup is called on any pages
// in this VA range, then those pages will also be read duplicated on the
// destination processor for the migration.
// destination processor for the migration unless the migration is between CPU
// NUMA nodes, in which case the pages are migrated to the destination NUMA
// node and a read-only mapping to the migrated pages is created.
//
// Enabling read duplication on a VA range requires the CPU and all GPUs with
// registered VA spaces to be fault-capable. Otherwise, the migration and
@@ -3945,9 +3959,7 @@ NV_STATUS UvmToolsDisableCounters(UvmToolsCountersHandle counters,
// In-process scenario when targetVa address + size overlaps with buffer + size.
//
// This is essentially a UVM version of RM ctrl call
// NV83DE_CTRL_CMD_DEBUG_READ_MEMORY. For implementation constraints (and more
// information), please refer to the documentation:
// //sw/docs/resman/components/compute/UVM/subsystems/UVM_8_Tools_API_Design.docx
// NV83DE_CTRL_CMD_DEBUG_READ_MEMORY.
//
// Arguments:
// session: (INPUT)
@@ -4001,9 +4013,7 @@ NV_STATUS UvmToolsReadProcessMemory(UvmToolsSessionHandle session,
// buffer + size.
//
// This is essentially a UVM version of RM ctrl call
// NV83DE_CTRL_CMD_DEBUG_READ_MEMORY. For implementation constraints (and more
// information), please refer to the documentation:
// //sw/docs/resman/components/compute/UVM/subsystems/UVM_8_Tools_API_Design.docx
// NV83DE_CTRL_CMD_DEBUG_READ_MEMORY.
//
// Arguments:
// session: (INPUT)