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gpu: nvgpu: Add VIDMEM debugging

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Add some VIDMEM debugging to help track the background free
thread and allocs/frees.

JIRA NVGPU-30
JIRA NVGPU-138

Change-Id: I88471b29d2a42c104666b111d0d3014110c9d56c
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1576330
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
This commit is contained in:
Alex Waterman
2017-10-09 17:45:02 -07:00
committed by mobile promotions
parent e26ce10cc6
commit 8aacfb1da4
4 changed files with 50 additions and 3 deletions
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7
drivers/gpu/nvgpu/common/linux/vidmem.c
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@@ -77,7 +77,8 @@ static void gk20a_vidbuf_release(struct dma_buf *dmabuf)
struct nvgpu_vidmem_linux *linux_buf = buf->priv;
struct gk20a *g = buf->g;
gk20a_dbg_fn("");
vidmem_dbg(g, "Releasing Linux VIDMEM buf: dmabuf=0x%p size=%zuKB",
dmabuf, buf->mem->size >> 10);
if (linux_buf && linux_buf->dmabuf_priv_delete)
linux_buf->dmabuf_priv_delete(linux_buf->dmabuf_priv);
@@ -202,6 +203,9 @@ int nvgpu_vidmem_export_linux(struct gk20a *g, size_t bytes)
/* fclose() on this drops one ref, freeing the dma buf */
fd_install(fd, priv->dmabuf->file);
vidmem_dbg(g, "Alloced Linux VIDMEM buf: dmabuf=0x%p size=%zuKB",
priv->dmabuf, buf->mem->size >> 10);
return fd;
fail:
@@ -209,6 +213,7 @@ fail:
nvgpu_kfree(g, priv);
gk20a_put(g);
vidmem_dbg(g, "Failed to alloc Linux VIDMEM buf: %d", err);
return err;
}