gpu: nvgpu: unify nvgpu and pci probe

We have completely different versions of probe for
nvgpu and pci device
Extract out common steps into nvgpu_probe() function
and separate it out in new file nvgpu_common.c
Divide task of nvgpu_probe() into further smaller
functions

Do platform specific things (like irq handling,
memresource management, power management) only in
individual probes and then call nvgpu_probe() to
complete the common initialization

Move all debugfs initialization to common gk20a_debug_init()
This also helps to bringup all debug nodes to pci device

Pass debugfs_symlink name as a parameter to gk20a_debug_init()
This allows us to set separate debugfs symlink for nvgpu
and pci device

In case of railgating, cde and ce debugfs, check if
platform supports them or not

Copy vidmem_is_vidmem from platform to mm structure
and set it to true for pci device

Return from gk20a_scale_init() if we don't have either of
governor or qos_notifier

Fix gk20a_alloc_debugfs_init() and gk20a_secure_page_alloc()
to receive device pointer instead of platform_device

Export gk20a_railgating_debugfs_init() so that we can call
it from gk20a_debug_init()

Jira DNVGPU-56
Jira DNVGPU-58

Change-Id: I3cc048082b0a1e57415a9fb8bfb9eec0f0a280cd
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/1204207
(cherry picked from commit add6bb0a3d5bd98131bbe6f62d4358d4d722b0fe)
Reviewed-on: http://git-master/r/1204462
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/vgpu/vgpu.c b/drivers/gpu/nvgpu/vgpu/vgpu.c
index c548175a..27d98eb8 100644
--- a/drivers/gpu/nvgpu/vgpu/vgpu.c
+++ b/drivers/gpu/nvgpu/vgpu/vgpu.c
@@ -599,7 +599,7 @@ int vgpu_probe(struct platform_device *pdev)
         if (IS_ERR(priv->intr_handler))
                 return -ENOMEM;
 
-        gk20a_debug_init(dev);
+        gk20a_debug_init(dev, "gpu.0");
 
         /* Set DMA parameters to allow larger sgt lists */
         dev->dma_parms = &gk20a->dma_parms;