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authorOfir Bitton <obitton@habana.ai>2022-02-28 16:08:20 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-05-22 20:57:34 +0200
commit4c3b9f6e3bd0480474666f9e016ff57ea0c5ecaa (patch)
treedeb41501e3bac1d60d44810b0f1fcc3487c1d553 /drivers/misc/habanalabs/common/device.c
parent050a6f349a09d3cefb14f4114bfa047b2c5b2a65 (diff)
downloadlinux-next-4c3b9f6e3bd0480474666f9e016ff57ea0c5ecaa.tar.gz
habanalabs: add new return code to device fd open
In order to be more informative during device open, we are adding a new return code -EAGAIN that indicates device is still going through resource reclaiming and hence it cannot be used yet. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/habanalabs/common/device.c')
-rw-r--r--drivers/misc/habanalabs/common/device.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/misc/habanalabs/common/device.c b/drivers/misc/habanalabs/common/device.c
index dc9341a64541..3eb392b4308a 100644
--- a/drivers/misc/habanalabs/common/device.c
+++ b/drivers/misc/habanalabs/common/device.c
@@ -107,6 +107,8 @@ static void hpriv_release(struct kref *ref)
hdev->is_compute_ctx_active = false;
mutex_unlock(&hdev->fpriv_list_lock);
+ hdev->compute_ctx_in_release = 0;
+
kfree(hpriv);
}
@@ -150,6 +152,8 @@ static int hl_device_release(struct inode *inode, struct file *filp)
hl_ts_mgr_fini(hpriv->hdev, &hpriv->ts_mem_mgr);
hl_ctx_mgr_fini(hdev, &hpriv->ctx_mgr);
+ hdev->compute_ctx_in_release = 1;
+
if (!hl_hpriv_put(hpriv))
dev_notice(hdev->dev,
"User process closed FD but device still in use\n");