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This commit is contained in:
Bernhard Stoeckner
2023-07-18 15:54:53 +02:00
parent 22a077c4fe
commit 337e28efda
264 changed files with 67251 additions and 107479 deletions
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13
kernel-open/nvidia-uvm/uvm_perf_thrashing.c
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@@ -1455,7 +1455,18 @@ static uvm_perf_thrashing_hint_t get_hint_for_migration_thrashing(va_space_thras
hint.type = UVM_PERF_THRASHING_HINT_TYPE_NONE;
closest_resident_id = uvm_va_block_page_get_closest_resident(va_block, page_index, requester);
UVM_ASSERT(UVM_ID_IS_VALID(closest_resident_id));
if (uvm_va_block_is_hmm(va_block)) {
// HMM pages always start out resident on the CPU but may not be
// recorded in the va_block state because hmm_range_fault() or
// similar functions haven't been called to get an accurate snapshot
// of the Linux state. We can assume pages are CPU resident for the
// purpose of deciding where to migrate to reduce thrashing.
if (UVM_ID_IS_INVALID(closest_resident_id))
closest_resident_id = UVM_ID_CPU;
}
else {
UVM_ASSERT(UVM_ID_IS_VALID(closest_resident_id));
}
if (thrashing_processors_can_access(va_space, page_thrashing, preferred_location)) {
// The logic in uvm_va_block_select_residency chooses the preferred