v3:
improve the coding style.

v2:
use debugfs_create_x64 and debugfs_create_x8 to create node.

v1:
1. Add guest driver CUID support
2. Do not expose vf index(variable "fcn_idx") to customers,
   replace the fcn_idx with pad.
   Only expose the unitid to customers.

background:
Change fcn_idx to pad, VF index won't expose to guest vm.
Introduce a new unitid field as the VF identifier to replace the VF index:
 1).unitid is assigned by the host driver
 2).It is delivered to the guest via the pf2vf message
 3).The application or umd can retrieve united from the sysfs node

Signed-off-by: chong li <chongli2@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

When we do a full adapter reset, if we know the timedout fence
mark the fence with -ETIME rather than -ECANCELED so it
gets properly handled by userspace.

v2: rebase

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Add amdgpu_regs_pcie64 debugfs node to
read/write 64bit PCIE registers.

Signed-off-by: Stanley.Yang <Stanley.Yang@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Debugfs files for amdgpu are better to be handled in the dedicated
amdgpu_debugfs.c/.h files.

Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Move didt callbacks to register access block.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Define register access block which consolidates different register access
methods. Add smc method to register access block.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

This was done entirely with mindless brute force, using

    git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
        xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'

to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.

Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.

For the same reason the 'flex' versions will be done as a separate
conversion.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

This is the result of running the Coccinelle script from
scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to
avoid scalar types (which need careful case-by-case checking), and
instead replace kmalloc-family calls that allocate struct or union
object instances:

Single allocations:	kmalloc(sizeof(TYPE), ...)
are replaced with:	kmalloc_obj(TYPE, ...)

Array allocations:	kmalloc_array(COUNT, sizeof(TYPE), ...)
are replaced with:	kmalloc_objs(TYPE, COUNT, ...)

Flex array allocations:	kmalloc(struct_size(PTR, FAM, COUNT), ...)
are replaced with:	kmalloc_flex(*PTR, FAM, COUNT, ...)

(where TYPE may also be *VAR)

The resulting allocations no longer return "void *", instead returning
"TYPE *".

Signed-off-by: Kees Cook <kees@kernel.org>

The drm_*() macros include the device which is helpful for debugging
issues in multi-GPU systems.

Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org>
Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

pm_runtime_put_autosuspend(), pm_runtime_put_sync_autosuspend(),
pm_runtime_autosuspend() and pm_request_autosuspend() now include a call
to pm_runtime_mark_last_busy(). Remove the now-redundant explicit call to
pm_runtime_mark_last_busy().

Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>