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russellcnv
2023-09-01 21:36:45 -07:00
parent 18b7303c54
commit 17546dbdda
122 changed files with 41587 additions and 34584 deletions
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42
kernel-open/nvidia-uvm/uvm_perf_prefetch.h
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@@ -61,21 +61,41 @@ typedef struct
// Global initialization function (no clean up needed).
NV_STATUS uvm_perf_prefetch_init(void);
// Returns whether prefetching is enabled in the VA space.
// va_space cannot be NULL.
bool uvm_perf_prefetch_enabled(uvm_va_space_t *va_space);
// Return the prefetch mask with the pages that may be prefetched in a ATS
// block. ATS block is a system allocated memory block with base aligned to
// UVM_VA_BLOCK_SIZE and a maximum size of UVM_VA_BLOCK_SIZE. The faulted_pages
// mask and faulted_region are the pages being faulted on the given residency.
//
// Only residency_mask can be NULL.
//
// Locking: The caller must hold the va_space lock.
void uvm_perf_prefetch_compute_ats(uvm_va_space_t *va_space,
const uvm_page_mask_t *faulted_pages,
uvm_va_block_region_t faulted_region,
uvm_va_block_region_t max_prefetch_region,
const uvm_page_mask_t *residency_mask,
uvm_perf_prefetch_bitmap_tree_t *bitmap_tree,
uvm_page_mask_t *out_prefetch_mask);
// Return a hint with the pages that may be prefetched in the block.
// The faulted_pages mask and faulted_region are the pages being migrated to
// the given residency.
// va_block_context must not be NULL, va_block_context->policy must be valid,
// and if the va_block is a HMM block, va_block_context->hmm.vma must be valid
// which also means the va_block_context->mm is not NULL, retained, and locked
// for at least read.
// va_block_context must not be NULL, and if the va_block is a HMM
// block, va_block_context->hmm.vma must be valid which also means the
// va_block_context->mm is not NULL, retained, and locked for at least
// read.
// Locking: The caller must hold the va_space lock and va_block lock.
void uvm_perf_prefetch_get_hint(uvm_va_block_t *va_block,
uvm_va_block_context_t *va_block_context,
uvm_processor_id_t new_residency,
const uvm_page_mask_t *faulted_pages,
uvm_va_block_region_t faulted_region,
uvm_perf_prefetch_bitmap_tree_t *bitmap_tree,
uvm_perf_prefetch_hint_t *out_hint);
void uvm_perf_prefetch_get_hint_va_block(uvm_va_block_t *va_block,
uvm_va_block_context_t *va_block_context,
uvm_processor_id_t new_residency,
const uvm_page_mask_t *faulted_pages,
uvm_va_block_region_t faulted_region,
uvm_perf_prefetch_bitmap_tree_t *bitmap_tree,
uvm_perf_prefetch_hint_t *out_hint);
void uvm_perf_prefetch_bitmap_tree_iter_init(const uvm_perf_prefetch_bitmap_tree_t *bitmap_tree,
uvm_page_index_t page_index,