diff options
| author | Tomer Tayar <ttayar@habana.ai> | 2020-07-09 16:17:48 +0300 |
|---|---|---|
| committer | Oded Gabbay <oded.gabbay@gmail.com> | 2020-09-22 18:49:54 +0300 |
| commit | ef6a0f6caa4a5dbfbb42b642e23fb06182798d30 (patch) | |
| tree | c55f87fb98e6845c184515282f2d169c3e9cb2dc /drivers/misc/habanalabs/goya | |
| parent | fa8641a14f2841e1712e554ebfa58f1ac7b7db1b (diff) | |
| download | linux-ef6a0f6caa4a5dbfbb42b642e23fb06182798d30.tar.bz2 | |
habanalabs: Add an option to map CB to device MMU
There are cases in which the device should access the host memory of a
CB through the device MMU, and thus this memory should be mapped.
The patch adds a flag to the CB IOCTL, in which a user can ask the
driver to perform the mapping when creating a CB.
The mapping is allowed only if a dedicated VA range was allocated for
the specific ASIC.
Signed-off-by: Tomer Tayar <ttayar@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/goya')
| -rw-r--r-- | drivers/misc/habanalabs/goya/goya.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/misc/habanalabs/goya/goya.c b/drivers/misc/habanalabs/goya/goya.c index 6c81a4b148de..5cddd46a8fb8 100644 --- a/drivers/misc/habanalabs/goya/goya.c +++ b/drivers/misc/habanalabs/goya/goya.c @@ -3811,7 +3811,7 @@ static int goya_parse_cb_mmu(struct hl_device *hdev, sizeof(struct packet_msg_prot) * 2; rc = hl_cb_create(hdev, &hdev->kernel_cb_mgr, hdev->kernel_ctx, - parser->patched_cb_size, false, + parser->patched_cb_size, false, false, &patched_cb_handle); if (rc) { @@ -3885,7 +3885,7 @@ static int goya_parse_cb_no_mmu(struct hl_device *hdev, goto free_userptr; rc = hl_cb_create(hdev, &hdev->kernel_cb_mgr, hdev->kernel_ctx, - parser->patched_cb_size, false, + parser->patched_cb_size, false, false, &patched_cb_handle); if (rc) { dev_err(hdev->dev, |