This uses two things that might be Linux specific,
__builtin_constant_p (might be gcc)
and
BUILD_BUG_ON. (maybe other dm's can have something similiar).

This saves 4k in the bw calcs code.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This results in a ~4.5k code size reduction.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

I've no idea if these are used on other platforms, but they
aren't used outside this file here, so make them static.

Drops 300 bytes.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This decreases code size by a few hundred bytes.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This drops ~400 bytes here.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This just removes more unused return/errors paths.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This never returned anything else.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This removes any remaining pointless return codepaths from the
DCE code.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This is similiar to previous patches, don't return when we don't
need to, also do error checking before allocating memory, makes
it simpler to cleanup after.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

There was lots of return true, and error checking that was never used
in these paths.

Just remove it all.

v2: I missed one return true.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

There is no need to check for these pointers being valid
at this level. Check earlier if required.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

The return value was unused.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This function never returned false under any sane circumstances.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This never returns anything but true.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This doesn't return anything except true.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This only ever returned true.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

The checks weren't useful here really.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This can't fail as is.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This isn't referenced anywhere, and if it was it should be const.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

It's not in a good shape and currently completely unused.
Signed-off-by: NHarry Wentland <harry.wentland@amd.com>
Acked-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

These aren't used in the tree anywhere, and there is a TODO.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This adds ~50k to the driver text segment, and 10k to data segment.

   text	   data	    bss	    dec	    hex	filename
2385556	  39681	   1045	2426282	 2505aa	drivers/gpu/drm/amd/amdgpu/amdgpu.o
  text	   data	    bss	    dec	    hex	filename
2336593	  28857	   1045	2366495	 241c1f	drivers/gpu/drm/amd/amdgpu/amdgpu.o
Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This code isn't used, and this function is huge, reimport later if
going to be used.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This extracts the bios parser object id handling into a common file.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This is unused code.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This reduces code size.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This reduces code size for the bw calcs code.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This code isn't used at all in the kernel tree, perhaps it can wait to
be imported when it is. It also does a lot of floating point calcs,
so probably good to drop it until it's needed and we can ensure
proper fpu accessors.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This just adds two accessor methods, and moves all the data
to static const.

v2: fix dcn build.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

There was a global construct symbol in the module symbols, kill it.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Signed-off-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

While reviewing I2C in DC identified a few places. Added a couple to the
TODO list.

1) Connector info read

See get_ext_display_connection_info

On some boards the connector information has to be read through a
special I2C channel. This line is only used for this purpose and only on
driver init.

2) SCDC stuff

This should all be reworked to go through DRM's SCDC code. When this is
done some unnecessary I2C code can be retired as well.

3) Max TMDS clock read

See dal_ddc_service_i2c_query_dp_dual_mode_adaptor

This should happen in DRM as well. I haven't checked if there's
currently functionality in DRM. If not we can propose something.

4) HDMI retimer programming

Some boards have an HDMI retimer that we need to program to pass PHY
compliance.

1 & 3 might be a good exercise if someone is looking for things to do.

v2: Merge dp_dual_mode_adaptor TODO
Acked-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NHarry Wentland <harry.wentland@amd.com>
Acked-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>