NVIDIA/open-gpu-kernel-modules
1
0
Fork 0
mirror of https://github.com/NVIDIA/open-gpu-kernel-modules.git synced 2026-02-28 19:03:58 +00:00
Code Issues Packages Projects Releases Wiki Activity

555.42.02

Browse Source 
(cherry picked from commit 5a1c474040)
This commit is contained in:
Bernhard Stoeckner
2024-05-21 15:11:46 +02:00
committed by Gaurav Juvekar
parent caa2dd11a0
commit 3084c04453
1004 changed files with 172522 additions and 150960 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
kernel-open/nvidia-uvm/uvm_gpu_semaphore.h
View File

@@ -29,8 +29,6 @@
#include "uvm_rm_mem.h"
#include "uvm_linux.h"
typedef NvU32 uvm_gpu_semaphore_notifier_t;
// A GPU semaphore is a memory location accessible by the GPUs and the CPU
// that's used for synchronization among them.
// The GPU has primitives to acquire (wait for) and release (set) 4-byte memory
@@ -47,15 +45,17 @@ struct uvm_gpu_semaphore_struct
// The semaphore pool page the semaphore came from
uvm_gpu_semaphore_pool_page_t *page;
// Index of the semaphore in semaphore page
NvU16 index;
// Pointer to the memory location
NvU32 *payload;
struct {
UvmCslIv *ivs;
NvU16 index;
NvU32 cached_payload;
uvm_gpu_semaphore_notifier_t last_pushed_notifier;
uvm_gpu_semaphore_notifier_t last_observed_notifier;
uvm_rm_mem_t *encrypted_payload;
uvm_rm_mem_t *notifier;
uvm_rm_mem_t *auth_tag;
UvmCslIv *ivs;
NvU32 last_pushed_notifier;
NvU32 last_observed_notifier;
} conf_computing;
};
@@ -151,17 +151,6 @@ NvU64 uvm_gpu_semaphore_get_gpu_proxy_va(uvm_gpu_semaphore_t *semaphore, uvm_gpu
NvU64 uvm_gpu_semaphore_get_gpu_va(uvm_gpu_semaphore_t *semaphore, uvm_gpu_t *gpu, bool is_proxy_va_space);
NvU32 *uvm_gpu_semaphore_get_cpu_va(uvm_gpu_semaphore_t *semaphore);
NvU32 *uvm_gpu_semaphore_get_encrypted_payload_cpu_va(uvm_gpu_semaphore_t *semaphore);
uvm_gpu_address_t uvm_gpu_semaphore_get_encrypted_payload_gpu_va(uvm_gpu_semaphore_t *semaphore);
uvm_gpu_semaphore_notifier_t *uvm_gpu_semaphore_get_notifier_cpu_va(uvm_gpu_semaphore_t *semaphore);
uvm_gpu_address_t uvm_gpu_semaphore_get_notifier_gpu_va(uvm_gpu_semaphore_t *semaphore);
void *uvm_gpu_semaphore_get_auth_tag_cpu_va(uvm_gpu_semaphore_t *semaphore);
uvm_gpu_address_t uvm_gpu_semaphore_get_auth_tag_gpu_va(uvm_gpu_semaphore_t *semaphore);
// Read the 32-bit payload of the semaphore
// Notably doesn't provide any memory ordering guarantees and needs to be used with
// care. For an example of what needs to be considered see