The hmm code is still complex and has bugs. Add a debug print
when memory gets allocated, in order to help identifying what's
happening out there.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>
---
drivers/staging/media/atomisp/pci/hmm/hmm.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/media/atomisp/pci/hmm/hmm.c b/drivers/staging/media/atomisp/pci/hmm/hmm.c
index 5e983442ca80..c8a6e2d6e498 100644
--- a/drivers/staging/media/atomisp/pci/hmm/hmm.c
+++ b/drivers/staging/media/atomisp/pci/hmm/hmm.c
@@ -253,7 +253,7 @@ ia_css_ptr hmm_alloc(size_t bytes, enum hmm_bo_type type,
goto alloc_page_err;
}
- /* Combind the virtual address and pages togather */
+ /* Combine the virtual address and pages together */
ret = hmm_bo_bind(bo);
if (ret) {
dev_err(atomisp_dev, "hmm_bo_bind failed.\n");
@@ -265,6 +265,10 @@ ia_css_ptr hmm_alloc(size_t bytes, enum hmm_bo_type type,
if (attrs & ATOMISP_MAP_FLAG_CLEARED)
hmm_set(bo->start, 0, bytes);
+ dev_dbg(atomisp_dev,
+ "%s: pages: 0x%08x (%ld bytes), type: %d from highmem %d, user ptr %p, cached %d\n",
+ __func__, bo->start, bytes, type, from_highmem, userptr, cached);
+
return bo->start;
bind_err:
--
2.26.2
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