Re: [PATCH v3 03/12] drm/i915/display: Use async flip when available for initial plane config

[kernel test robot <lkp@intel.com>]

Hi Maarten,

kernel test robot noticed the following build errors:

[auto build test ERROR on drm-xe/drm-xe-next]
[also build test ERROR on drm-intel/for-linux-next drm-intel/for-linux-next-fixes drm-tip/drm-tip linus/master v6.12-rc1]
[cannot apply to next-20241004]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Maarten-Lankhorst/drm-xe-display-Handle-stolen-bar-readout-in-the-same-way-as-lmem/20241004-000534
base:   https://gitlab.freedesktop.org/drm/xe/kernel.git drm-xe-next
patch link:    https://lore.kernel.org/r/20241003154421.33805-4-maarten.lankhorst%40linux.intel.com
patch subject: [PATCH v3 03/12] drm/i915/display: Use async flip when available for initial plane config
config: x86_64-rhel-8.3-rust (https://download.01.org/0day-ci/archive/20241004/202410042053.DCNgBMOr-lkp@intel.com/config)
compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241004/202410042053.DCNgBMOr-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202410042053.DCNgBMOr-lkp@intel.com/

All errors (new ones prefixed by >>):

>> drivers/gpu/drm/i915/display/skl_universal_plane.c:2814:14: error: call to undeclared function 'intel_read'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
    2814 |         plane_ctl = intel_read(i915, PLANE_CTL(pipe, plane_id));
         |                     ^
   1 error generated.


vim +/intel_read +2814 drivers/gpu/drm/i915/display/skl_universal_plane.c

  2789	
  2790	bool skl_fixup_initial_plane_config(struct intel_crtc *crtc,
  2791					    const struct intel_initial_plane_config *plane_config)
  2792	{
  2793		struct drm_i915_private *i915 = to_i915(crtc->base.dev);
  2794		struct intel_plane *plane = to_intel_plane(crtc->base.primary);
  2795		const struct intel_plane_state *plane_state =
  2796			to_intel_plane_state(plane->base.state);
  2797		enum plane_id plane_id = plane->id;
  2798		enum pipe pipe = crtc->pipe;
  2799		u32 base, plane_ctl;
  2800	
  2801		if (!plane_state->uapi.visible)
  2802			return false;
  2803	
  2804		base = intel_plane_ggtt_offset(plane_state);
  2805	
  2806		/*
  2807		 * We may have moved the surface to a different
  2808		 * part of ggtt, make the plane aware of that.
  2809		 */
  2810		if (plane_config->base == base)
  2811			return false;
  2812	
  2813		/* Perform an async flip to the new surface. */
> 2814		plane_ctl = intel_read(i915, PLANE_CTL(pipe, plane_id));

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