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habanalabs: fix backward compatibility of idle check
author
Oded Gabbay
<ogabbay@kernel.org>
Mon, 18 Jan 2021 11:19:51 +0000
(13:19 +0200)
committer
Oded Gabbay
<ogabbay@kernel.org>
Thu, 21 Jan 2021 18:30:22 +0000
(20:30 +0200)
Need to take the lower 32 bits of the driver's 64-bit idle mask and put
it in the legacy 32-bit variable that the userspace reads to know the
idle mask.
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
drivers/misc/habanalabs/common/habanalabs_ioctl.c
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diff --git
a/drivers/misc/habanalabs/common/habanalabs_ioctl.c
b/drivers/misc/habanalabs/common/habanalabs_ioctl.c
index
12efbd9
..
d25892d
100644
(file)
--- a/
drivers/misc/habanalabs/common/habanalabs_ioctl.c
+++ b/
drivers/misc/habanalabs/common/habanalabs_ioctl.c
@@
-133,6
+133,8
@@
static int hw_idle(struct hl_device *hdev, struct hl_info_args *args)
hw_idle.is_idle = hdev->asic_funcs->is_device_idle(hdev,
&hw_idle.busy_engines_mask_ext, NULL);
+ hw_idle.busy_engines_mask =
+ lower_32_bits(hw_idle.busy_engines_mask_ext);
return copy_to_user(out, &hw_idle,
min((size_t) max_size, sizeof(hw_idle))) ? -EFAULT : 0;