media: atomisp: add debug for hmm alloc

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@kernel.org>

diff --git a/drivers/staging/media/atomisp/pci/hmm/hmm.c b/drivers/staging/media/atomisp/pci/hmm/hmm.c
index 462f206..f9c2c78 100644 (file)
--- 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: