[PATCH xf86-video-amdgpu 0/7] Enabling Color Management - Round 3

[Michel Dänzer]

Hi Leo,


sorry for the delay.


On 2018-06-01 06:03 PM, sunpeng.li at amd.com wrote:
> From: "Leo (Sunpeng) Li" <sunpeng.li at amd.com>
> 
> This ended up being different enough from v2 to warrant a new patchset. Per
> Michel's suggestions, there have been various optimizations and cleanups.
> Here's what's changed:
> 
> * Cache DRM color management property IDs at pre-init,
>     * instead of querying DRM each time we need to modify color properties.
> 
> * Remove drmmode_update_cm_props().
>     * Update color properties in drmmode_output_get_property() instead.
>     * This also makes old calls to update_cm_props redundant.
> 
> * Get rid of fake CRTCs.
>     * Previously, we were allocating a fake CRTC to configure color props on
>       outputs that don't have a CRTC.
>     * Instead, rr_configure_and_change_cm_property() can be easily modified to
>       accept NULL CRTCs.

Is it currently ever the case in the hardware / kernel, or expected to
ever be, that colour management is supported for some but not all CRTCs
of a GPU?

If not, the LUT sizes could be tracked once instead of per CRTC, and at
least the (DE)GAMMA_LUT_SIZE properties could always return the proper
values, even if the output currently isn't associated with a CRTC.


Other than that, I'm going to send some minor feedback on patches 2 & 3.
If you prefer, I could fix up those and other cosmetic issues before
pushing the patches.


-- 
Earthling Michel Dänzer               |               http://www.amd.com
Libre software enthusiast             |             Mesa and X developer