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This commit is contained in:
Bernhard Stoeckner
2025-04-17 19:35:38 +02:00
parent e8113f665d
commit 4159579888
1142 changed files with 309085 additions and 272273 deletions
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11
kernel-open/nvidia-uvm/uvm_hmm.c
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@@ -1,5 +1,5 @@
/*******************************************************************************
Copyright (c) 2016-2025 NVIDIA Corporation
Copyright (c) 2016-2024 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
@@ -34,8 +34,9 @@ MODULE_PARM_DESC(uvm_disable_hmm,
"enabled if is not supported in this driver build "
"configuration, or if ATS settings conflict with HMM.");
#else
// So far, we've only tested HMM on x86_64, so disable it by default everywhere
// else.
// TODO: Bug 4103580: UVM: HMM: implement HMM support on ARM64 (aarch64)
// So far, we've only tested HMM on x86_64 and aarch64 and it is broken on
// aarch64 so disable it by default everywhere except x86_64.
static bool uvm_disable_hmm = true;
MODULE_PARM_DESC(uvm_disable_hmm,
"Force-disable HMM functionality in the UVM driver. "
@@ -186,7 +187,7 @@ static NV_STATUS hmm_copy_devmem_page(struct page *dst_page, struct page *src_pa
if (status != NV_OK)
goto out;
status = uvm_parent_gpu_map_cpu_pages(gpu->parent, dst_page, PAGE_SIZE, &dma_addr);
status = uvm_gpu_map_cpu_page(gpu, dst_page, &dma_addr);
if (status != NV_OK)
goto out_unmap_gpu;
@@ -1602,7 +1603,7 @@ static NV_STATUS hmm_va_block_cpu_page_populate(uvm_va_block_t *va_block,
return status;
}
status = uvm_va_block_map_cpu_chunk_on_gpus(va_block, chunk);
status = uvm_va_block_map_cpu_chunk_on_gpus(va_block, chunk, page_index);
if (status != NV_OK) {
uvm_cpu_chunk_remove_from_block(va_block, page_to_nid(page), page_index);
uvm_cpu_chunk_free(chunk);