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This commit is contained in:
Bernhard Stoeckner
2025-01-27 19:36:56 +01:00
parent 9d0b0414a5
commit 54d69484da
1166 changed files with 318863 additions and 182687 deletions
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12
kernel-open/nvidia-peermem/nv-p2p.h
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@@ -189,6 +189,12 @@ int nvidia_p2p_get_pages( uint64_t p2p_token, uint32_t va_space,
struct nvidia_p2p_page_table **page_table,
void (*free_callback)(void *data), void *data);
/*
* Flags to be used with persistent APIs
*/
#define NVIDIA_P2P_FLAGS_DEFAULT 0
#define NVIDIA_P2P_FLAGS_FORCE_BAR1_MAPPING 1
/*
* @brief
* Pin and make the pages underlying a range of GPU virtual memory
@@ -212,7 +218,11 @@ int nvidia_p2p_get_pages( uint64_t p2p_token, uint32_t va_space,
* @param[out] page_table
* A pointer to an array of structures with P2P PTEs.
* @param[in] flags
* Must be set to zero for now.
* NVIDIA_P2P_FLAGS_DEFAULT:
* Default value to be used if no specific behavior is expected.
* NVIDIA_P2P_FLAGS_FORCE_BAR1_MAPPING:
* Force BAR1 mappings on certain coherent platforms,
* subject to capability and supported topology.
*
* @return
* 0 upon successful completion.