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habanalabs: print more info when failing to pin user memory

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pin_user_pages_fast() might fail and return a negative number, or pin
less pages than requested and return the number of the pages that were
pinned.
For the latter, it is informative to print also the memory size and the
number of requested pages.

Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
This commit is contained in:
Tomer Tayar 2021-06-10 20:48:39 +03:00 • committed by Oded Gabbay
parent 3002f467a0
commit f5d6e39eb2
1 changed files with 2 additions and 2 deletions
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4
drivers/misc/habanalabs/common/memory.c
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@ -1612,8 +1612,8 @@ static int get_user_memory(struct hl_device *hdev, u64 addr, u64 size,
if (rc != npages) {
dev_err(hdev->dev,
"Failed (%d) to pin host memory with user ptr 0x%llx\n",
rc, addr);
"Failed (%d) to pin host memory with user ptr 0x%llx, size 0x%llx, npages %d\n",
rc, addr, size, npages);
if (rc < 0)
goto destroy_pages;
npages = rc;