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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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15
kernel-open/nvidia-uvm/uvm_ats.h
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@@ -28,17 +28,32 @@
#include "uvm_forward_decl.h"
#include "uvm_ats_ibm.h"
#include "nv_uvm_types.h"
#include "uvm_lock.h"
#include "uvm_ats_sva.h"
#define UVM_ATS_SUPPORTED() (UVM_ATS_IBM_SUPPORTED() || UVM_ATS_SVA_SUPPORTED())
// ATS prefetcher uses hmm_range_fault() to query residency information.
// hmm_range_fault() needs CONFIG_HMM_MIRROR. To detect racing CPU invalidates
// of memory regions while hmm_range_fault() is being called, MMU interval
// notifiers are needed.
#if defined(CONFIG_HMM_MIRROR) && defined(NV_MMU_INTERVAL_NOTIFIER)
#define UVM_ATS_PREFETCH_SUPPORTED() 1
#else
#define UVM_ATS_PREFETCH_SUPPORTED() 0
#endif
typedef struct
{
// Mask of gpu_va_spaces which are registered for ATS access. The mask is
// indexed by gpu->id. This mask is protected by the VA space lock.
uvm_processor_mask_t registered_gpu_va_spaces;
// Protects racing invalidates in the VA space while hmm_range_fault() is
// being called in ats_compute_residency_mask().
uvm_rw_semaphore_t lock;
union
{
uvm_ibm_va_space_t ibm;