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This commit is contained in:
Maneet Singh
2025-08-04 11:15:02 -07:00
parent d890313300
commit 307159f262
1315 changed files with 477791 additions and 279973 deletions
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18
kernel-open/nvidia-uvm/uvm_pmm_gpu.h
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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
@@ -58,7 +58,7 @@
#include "uvm_va_block_types.h"
#include "uvm_linux.h"
#include "uvm_types.h"
#include "nv_uvm_types.h"
#include "nv_uvm_user_types.h"
#if UVM_IS_CONFIG_HMM() || defined(CONFIG_PCI_P2PDMA)
#include <linux/memremap.h>
#endif
@@ -351,6 +351,13 @@ typedef struct uvm_pmm_gpu_struct
// uvm_pmm_gpu_mark_root_chunk_(un)used().
struct list_head va_block_unused;
// List of discarded root GPU chunks, which are still mapped on the GPU.
// Chunks on this list are evicted with a lower priority than unused chunks.
//
// Updated by the VA block code with
// uvm_pmm_gpu_mark_root_chunk_discarded().
struct list_head va_block_discarded;
// List of root chunks used by VA blocks
struct list_head va_block_used;
@@ -425,6 +432,10 @@ static bool uvm_gpu_chunk_is_user(const uvm_gpu_chunk_t *chunk)
// page containing the chunk's starting address.
struct page *uvm_gpu_chunk_to_page(uvm_pmm_gpu_t *pmm, uvm_gpu_chunk_t *chunk);
// Return the physical address of the given chunk. The GPU must support
// coherence, (uvm_parent_gpu_is_coherent() should return true).
NvU64 uvm_gpu_chunk_to_sys_addr(uvm_pmm_gpu_t *pmm, uvm_gpu_chunk_t *chunk);
// User memory allocator.
//
// Allocates num_chunks chunks of size chunk_size in caller-supplied array
@@ -556,6 +567,9 @@ void uvm_pmm_gpu_mark_root_chunk_used(uvm_pmm_gpu_t *pmm, uvm_gpu_chunk_t *chunk
// Mark an allocated user chunk as unused
void uvm_pmm_gpu_mark_root_chunk_unused(uvm_pmm_gpu_t *pmm, uvm_gpu_chunk_t *chunk);
// Mark an allocated chunk as discarded
void uvm_pmm_gpu_mark_root_chunk_discarded(uvm_pmm_gpu_t *pmm, uvm_gpu_chunk_t *chunk);
static bool uvm_gpu_chunk_same_root(uvm_gpu_chunk_t *chunk1, uvm_gpu_chunk_t *chunk2)
{
return UVM_ALIGN_DOWN(chunk1->address, UVM_CHUNK_SIZE_MAX) == UVM_ALIGN_DOWN(chunk2->address, UVM_CHUNK_SIZE_MAX);