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This commit is contained in:
Bernhard Stoeckner
2025-02-27 17:32:23 +01:00
parent 81fe4fb417
commit 129479b1b7
141 changed files with 102245 additions and 100070 deletions
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27
kernel-open/nvidia-uvm/uvm_gpu.c
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@@ -1,5 +1,5 @@
/*******************************************************************************
Copyright (c) 2015-2024 NVIDIA Corporation
Copyright (c) 2015-2025 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
@@ -109,8 +109,10 @@ static void fill_parent_gpu_info(uvm_parent_gpu_t *parent_gpu, const UvmGpuInfo
// nvswitch is routed via physical pages, where the upper 13-bits of the
// 47-bit address space holds the routing information for each peer.
// Currently, this is limited to a 16GB framebuffer window size.
if (parent_gpu->nvswitch_info.is_nvswitch_connected)
if (parent_gpu->nvswitch_info.is_nvswitch_connected) {
parent_gpu->nvswitch_info.fabric_memory_window_start = gpu_info->nvswitchMemoryWindowStart;
parent_gpu->nvswitch_info.egm_fabric_memory_window_start = gpu_info->nvswitchEgmMemoryWindowStart;
}
uvm_uuid_string(uuid_buffer, &parent_gpu->uuid);
snprintf(parent_gpu->name,
@@ -244,6 +246,7 @@ static NV_STATUS get_gpu_fb_info(uvm_gpu_t *gpu)
if (!fb_info.bZeroFb) {
gpu->mem_info.size = ((NvU64)fb_info.heapSize + fb_info.reservedHeapSize) * 1024;
gpu->mem_info.max_allocatable_address = fb_info.maxAllocatableAddress;
gpu->mem_info.phys_start = (NvU64)fb_info.heapStart * 1024;
}
gpu->mem_info.max_vidmem_page_size = fb_info.maxVidmemPageSize;
@@ -568,6 +571,9 @@ static void gpu_info_print_common(uvm_gpu_t *gpu, struct seq_file *s)
UVM_SEQ_OR_DBG_PRINT(s, "big_page_size %u\n", gpu->big_page.internal_size);
UVM_SEQ_OR_DBG_PRINT(s, "rm_va_base 0x%llx\n", gpu->parent->rm_va_base);
UVM_SEQ_OR_DBG_PRINT(s, "rm_va_size 0x%llx\n", gpu->parent->rm_va_size);
UVM_SEQ_OR_DBG_PRINT(s, "vidmem_start %llu (%llu MBs)\n",
gpu->mem_info.phys_start,
gpu->mem_info.phys_start / (1024 * 1024));
UVM_SEQ_OR_DBG_PRINT(s, "vidmem_size %llu (%llu MBs)\n",
gpu->mem_info.size,
gpu->mem_info.size / (1024 * 1024));
@@ -1361,6 +1367,7 @@ static NV_STATUS init_parent_gpu(uvm_parent_gpu_t *parent_gpu,
const UvmGpuPlatformInfo *gpu_platform_info)
{
NV_STATUS status;
UvmGpuFbInfo fb_info = {0};
status = uvm_rm_locked_call(nvUvmInterfaceDeviceCreate(uvm_global_session_handle(),
gpu_info,
@@ -1384,8 +1391,15 @@ static NV_STATUS init_parent_gpu(uvm_parent_gpu_t *parent_gpu,
parent_gpu->egm.local_peer_id = gpu_info->egmPeerId;
parent_gpu->egm.base_address = gpu_info->egmBaseAddr;
status = uvm_rm_locked_call(nvUvmInterfaceGetFbInfo(parent_gpu->rm_device, &fb_info));
if (status != NV_OK)
return status;
parent_gpu->sli_enabled = (gpu_info->subdeviceCount > 1);
if (!fb_info.bZeroFb)
parent_gpu->max_allocatable_address = fb_info.maxAllocatableAddress;
parent_gpu->virt_mode = gpu_info->virtMode;
if (parent_gpu->virt_mode == UVM_VIRT_MODE_LEGACY) {
UVM_ERR_PRINT("Failed to init GPU %s. UVM is not supported in legacy virtualization mode\n",
@@ -1419,6 +1433,14 @@ static NV_STATUS init_parent_gpu(uvm_parent_gpu_t *parent_gpu,
uvm_mmu_init_gpu_chunk_sizes(parent_gpu);
status = uvm_pmm_devmem_init(parent_gpu);
if (status != NV_OK) {
UVM_ERR_PRINT("failed to intialize device private memory: %s, GPU %s\n",
nvstatusToString(status),
uvm_parent_gpu_name(parent_gpu));
return status;
}
status = uvm_ats_add_gpu(parent_gpu);
if (status != NV_OK) {
UVM_ERR_PRINT("uvm_ats_add_gpu failed: %s, GPU %s\n",
@@ -1667,6 +1689,7 @@ static void deinit_parent_gpu(uvm_parent_gpu_t *parent_gpu)
deinit_parent_procfs_files(parent_gpu);
uvm_pmm_devmem_deinit(parent_gpu);
uvm_ats_remove_gpu(parent_gpu);
UVM_ASSERT(atomic64_read(&parent_gpu->mapped_cpu_pages_size) == 0);