diff options
| author | Tomer Tayar <ttayar@habana.ai> | 2022-06-30 22:05:51 +0300 |
|---|---|---|
| committer | Oded Gabbay <ogabbay@kernel.org> | 2022-07-12 09:09:31 +0300 |
| commit | 168fc71857efad3e122d7b26889824844b1e7146 (patch) | |
| tree | 54db242091d273d42639e95c390c8e0685a4cd2b /drivers/misc/habanalabs/include | |
| parent | 3f043b3192454e430ece973a75c5b9fd9a344dd8 (diff) | |
habanalabs/gaudi2: map virtual MSI-X doorbell memory for user
Upon the initialization of a user context, map the host memory page of
the virtual MSI-X doorbell in the device MMU.
A reserved VA is used for this purpose, so user can use it directly
without any allocation/map operation.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Diffstat (limited to 'drivers/misc/habanalabs/include')
| -rw-r--r-- | drivers/misc/habanalabs/include/gaudi2/gaudi2.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/misc/habanalabs/include/gaudi2/gaudi2.h b/drivers/misc/habanalabs/include/gaudi2/gaudi2.h index 071fc5a820f7..5b4f9e108798 100644 --- a/drivers/misc/habanalabs/include/gaudi2/gaudi2.h +++ b/drivers/misc/habanalabs/include/gaudi2/gaudi2.h @@ -54,6 +54,9 @@ #define RESERVED_VA_RANGE_FOR_ARC_ON_HBM_START 0x1001500000000000ull #define RESERVED_VA_RANGE_FOR_ARC_ON_HBM_END 0x10016FFFFFFFFFFFull +#define RESERVED_VA_FOR_VIRTUAL_MSIX_DOORBELL_START 0xFFF077FFFFFF0000ull +#define RESERVED_VA_FOR_VIRTUAL_MSIX_DOORBELL_END 0xFFF077FFFFFFFFFFull + #define RESERVED_VA_RANGE_FOR_ARC_ON_HOST_START 0xFFF0780000000000ull #define RESERVED_VA_RANGE_FOR_ARC_ON_HOST_END 0xFFF07FFFFFFFFFFFull |