NVIDIA/open-gpu-kernel-modules
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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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16
kernel-open/nvidia-uvm/uvm_hopper.c
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@@ -1,5 +1,5 @@
/*******************************************************************************
Copyright (c) 2020-2023 NVIDIA Corporation
Copyright (c) 2020-2024 NVIDIA Corporation
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to
@@ -36,12 +36,6 @@ static uvm_gpu_peer_copy_mode_t hopper_peer_copy_mode(uvm_parent_gpu_t *parent_g
if (g_uvm_global.conf_computing_enabled)
return UVM_GPU_PEER_COPY_MODE_UNSUPPORTED;
// TODO: Bug 4174553: In some Grace Hopper setups, physical peer copies
// result on errors. Force peer copies to use virtual addressing until the
// issue is clarified.
if (uvm_parent_gpu_is_coherent(parent_gpu))
return UVM_GPU_PEER_COPY_MODE_VIRTUAL;
return g_uvm_global.peer_copy_mode;
}
@@ -69,6 +63,9 @@ void uvm_hal_hopper_arch_init_properties(uvm_parent_gpu_t *parent_gpu)
parent_gpu->rm_va_base = 0;
parent_gpu->rm_va_size = 64 * UVM_SIZE_1PB;
parent_gpu->peer_va_base = parent_gpu->rm_va_base + parent_gpu->rm_va_size;
parent_gpu->peer_va_size = NV_MAX_DEVICES * UVM_PEER_IDENTITY_VA_SIZE;
parent_gpu->uvm_mem_va_base = parent_gpu->rm_va_size + 384 * UVM_SIZE_1TB;
parent_gpu->uvm_mem_va_size = UVM_MEM_VA_SIZE;
@@ -121,4 +118,9 @@ void uvm_hal_hopper_arch_init_properties(uvm_parent_gpu_t *parent_gpu)
parent_gpu->plc_supported = true;
parent_gpu->no_ats_range_required = true;
// In Hopper there are not enough HW key slots available to support
// individual channel encryption keys, so channels on the same engine share
// the keys.
parent_gpu->conf_computing.per_channel_key_rotation = false;
}