diff options
| author | Ofir Bitton <obitton@habana.ai> | 2020-07-13 13:36:55 +0300 |
|---|---|---|
| committer | Oded Gabbay <oded.gabbay@gmail.com> | 2020-07-24 20:31:37 +0300 |
| commit | a04b7cd97eef13a489ca44c979cf91e24cfa7b55 (patch) | |
| tree | 5e887df646106fcb7d155cec600b76b8dc5f5903 /drivers/misc/habanalabs/common/context.c | |
| parent | eb8b293e794bbbafa9d615ea939982a19bf92867 (diff) | |
| download | lwn-a04b7cd97eef13a489ca44c979cf91e24cfa7b55.tar.gz lwn-a04b7cd97eef13a489ca44c979cf91e24cfa7b55.zip | |
habanalabs: create internal CB pool
Create a device MMU-mapped internal command buffer pool, in order to allow
the driver to allocate CBs for the signal/wait operations
that are fetched by the queues when they are configured with the user's
address space ID.
We must pre-map this internal pool due to performance issues.
This pool is needed for future ASIC support and it is currently unused in
GOYA and GAUDI.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Diffstat (limited to 'drivers/misc/habanalabs/common/context.c')
| -rw-r--r-- | drivers/misc/habanalabs/common/context.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/misc/habanalabs/common/context.c b/drivers/misc/habanalabs/common/context.c index 1e3e5b19ecd9..b75a20364fad 100644 --- a/drivers/misc/habanalabs/common/context.c +++ b/drivers/misc/habanalabs/common/context.c @@ -153,10 +153,18 @@ int hl_ctx_init(struct hl_device *hdev, struct hl_ctx *ctx, bool is_kernel_ctx) rc = -ENOMEM; goto mem_ctx_err; } + + rc = hdev->asic_funcs->ctx_init(ctx); + if (rc) { + dev_err(hdev->dev, "ctx_init failed\n"); + goto ctx_init_err; + } } return 0; +ctx_init_err: + hl_vm_ctx_fini(ctx); mem_ctx_err: if (ctx->asid != HL_KERNEL_ASID_ID) hl_asid_free(hdev, ctx->asid); |