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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30
kernel-open/nvidia-uvm/uvm_conf_computing.c
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@@ -1,5 +1,5 @@
/*******************************************************************************
Copyright (c) 2021-2023 NVIDIA Corporation
Copyright (c) 2021-2024 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
@@ -65,32 +65,13 @@ static ulong uvm_conf_computing_channel_iv_rotation_limit = UVM_CONF_COMPUTING_I
module_param(uvm_conf_computing_channel_iv_rotation_limit, ulong, S_IRUGO);
static UvmGpuConfComputeMode uvm_conf_computing_get_mode(const uvm_parent_gpu_t *parent)
{
return parent->rm_info.gpuConfComputeCaps.mode;
}
bool uvm_conf_computing_mode_is_hcc(const uvm_gpu_t *gpu)
{
return uvm_conf_computing_get_mode(gpu->parent) == UVM_GPU_CONF_COMPUTE_MODE_HCC;
}
void uvm_conf_computing_check_parent_gpu(const uvm_parent_gpu_t *parent)
{
uvm_parent_gpu_t *other_parent;
UvmGpuConfComputeMode parent_mode = uvm_conf_computing_get_mode(parent);
uvm_assert_mutex_locked(&g_uvm_global.global_lock);
// The Confidential Computing state of the GPU should match that of the
// system.
UVM_ASSERT((parent_mode != UVM_GPU_CONF_COMPUTE_MODE_NONE) == g_uvm_global.conf_computing_enabled);
// All GPUs derive Confidential Computing status from their parent. By
// current policy all parent GPUs have identical Confidential Computing
// status.
for_each_parent_gpu(other_parent)
UVM_ASSERT(parent_mode == uvm_conf_computing_get_mode(other_parent));
// Confidential Computing enablement on the system should match enablement
// on the GPU.
UVM_ASSERT(parent->rm_info.gpuConfComputeCaps.bConfComputingEnabled == g_uvm_global.conf_computing_enabled);
}
static void dma_buffer_destroy_locked(uvm_conf_computing_dma_buffer_pool_t *dma_buffer_pool,
@@ -343,9 +324,6 @@ static NV_STATUS dummy_iv_mem_init(uvm_gpu_t *gpu)
{
NV_STATUS status;
if (!uvm_conf_computing_mode_is_hcc(gpu))
return NV_OK;
status = uvm_mem_alloc_sysmem_dma(sizeof(UvmCslIv), gpu, NULL, &gpu->conf_computing.iv_mem);
if (status != NV_OK)
return status;