NVIDIA/open-gpu-kernel-modules
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This commit is contained in:
Maneet Singh
2025-09-30 12:52:14 -07:00
parent 87c0b12473
commit 2b436058a6
147 changed files with 56986 additions and 55176 deletions
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26
kernel-open/nvidia-uvm/uvm_pmm_gpu.h
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@@ -190,8 +190,7 @@ typedef uvm_chunk_size_t uvm_chunk_sizes_mask_t;
typedef struct uvm_pmm_gpu_chunk_suballoc_struct uvm_pmm_gpu_chunk_suballoc_t;
#if UVM_IS_CONFIG_HMM()
#if UVM_IS_CONFIG_HMM() || defined(NV_MEMORY_DEVICE_COHERENT_PRESENT)
typedef struct
{
// For g_uvm_global.devmem_ranges
@@ -205,7 +204,9 @@ typedef struct
struct dev_pagemap pagemap;
} uvm_pmm_gpu_devmem_t;
#endif
#if UVM_IS_CONFIG_HMM()
typedef struct uvm_pmm_gpu_struct uvm_pmm_gpu_t;
// Return the GPU chunk for a given device private struct page.
@@ -219,19 +220,18 @@ uvm_gpu_id_t uvm_pmm_devmem_page_to_gpu_id(struct page *page);
// Return the PFN of the device private struct page for the given GPU chunk.
unsigned long uvm_pmm_gpu_devmem_get_pfn(uvm_pmm_gpu_t *pmm, uvm_gpu_chunk_t *chunk);
#endif
// Allocate and initialise struct page data in the kernel to support HMM.
NV_STATUS uvm_pmm_devmem_init(uvm_parent_gpu_t *gpu);
void uvm_pmm_devmem_deinit(uvm_parent_gpu_t *parent_gpu);
void uvm_pmm_gpu_device_p2p_init(uvm_parent_gpu_t *gpu);
void uvm_pmm_gpu_device_p2p_deinit(uvm_parent_gpu_t *gpu);
// Free unused ZONE_DEVICE pages.
void uvm_pmm_devmem_exit(void);
#else
static inline void uvm_pmm_devmem_exit(void)
{
}
#endif
void uvm_pmm_gpu_device_p2p_init(uvm_gpu_t *gpu);
void uvm_pmm_gpu_device_p2p_deinit(uvm_gpu_t *gpu);
struct uvm_gpu_chunk_struct
{
// Physical address of GPU chunk. This may be removed to save memory
@@ -627,10 +627,6 @@ static uvm_chunk_size_t uvm_chunk_find_prev_size(uvm_chunk_sizes_mask_t chunk_si
// retained, and it's up to the caller to release them.
NvU32 uvm_pmm_gpu_phys_to_virt(uvm_pmm_gpu_t *pmm, NvU64 phys_addr, NvU64 region_size, uvm_reverse_map_t *out_mappings);
// Allocate and initialise struct page data in the kernel to support HMM.
NV_STATUS uvm_pmm_devmem_init(uvm_parent_gpu_t *gpu);
void uvm_pmm_devmem_deinit(uvm_parent_gpu_t *parent_gpu);
// Iterates over every size in the input mask from smallest to largest
#define for_each_chunk_size(__size, __chunk_sizes) \
for ((__size) = (__chunk_sizes) ? uvm_chunk_find_first_size(__chunk_sizes) : \