Re: [PATCH RFC] drm/verisilicon: Switch to drm_fb_dma_get_addr() for framebuffer addresses

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

Hi Chen-Yu,

[This is a private test report for your RFC patch.]
kernel test robot noticed the following build errors:

[auto build test ERROR on v7.2]
[also build test ERROR on linus/master next-20260818]
[cannot apply to drm-misc/drm-misc-next]
[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/Chen-Yu-Tsai/drm-verisilicon-Switch-to-drm_fb_dma_get_addr-for-framebuffer-addresses/20260807-184818
base:   v7.2
patch link:    https://lore.kernel.org/r/20260807104819.1295812-1-wenst%40chromium.org
patch subject: [PATCH RFC] drm/verisilicon: Switch to drm_fb_dma_get_addr() for framebuffer addresses
config: alpha-allmodconfig (https://download.01.org/0day-ci/archive/20260820/202608200439.C2DMMV97-lkp@intel.com/config)
compiler: alpha-linux-gcc (GCC) 16.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260820/202608200439.C2DMMV97-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/202608200439.C2DMMV97-lkp@intel.com/

All errors (new ones prefixed by >>):

   drivers/gpu/drm/verisilicon/vs_primary_plane.c: In function 'vs_primary_plane_atomic_update':
>> drivers/gpu/drm/verisilicon/vs_primary_plane.c:133:20: error: implicit declaration of function 'drm_fb_dma_get_gem_addr' [-Wimplicit-function-declaration]
     133 |         dma_addr = drm_fb_dma_get_gem_addr(fb, 0);
         |                    ^~~~~~~~~~~~~~~~~~~~~~~
--
   drivers/gpu/drm/verisilicon/vs_cursor_plane.c: In function 'vs_cursor_plane_atomic_update':
>> drivers/gpu/drm/verisilicon/vs_cursor_plane.c:180:20: error: implicit declaration of function 'drm_fb_dma_get_gem_addr' [-Wimplicit-function-declaration]
     180 |         dma_addr = drm_fb_dma_get_gem_addr(fb, 0);
         |                    ^~~~~~~~~~~~~~~~~~~~~~~


vim +/drm_fb_dma_get_gem_addr +133 drivers/gpu/drm/verisilicon/vs_primary_plane.c

    96	
    97	static void vs_primary_plane_atomic_update(struct drm_plane *plane,
    98						   struct drm_atomic_commit *atomic_state)
    99	{
   100		struct drm_plane_state *state = drm_atomic_get_new_plane_state(atomic_state,
   101									       plane);
   102		struct vs_plane_state *vs_state = to_vs_plane_state(state);
   103		struct drm_framebuffer *fb = state->fb;
   104		struct drm_crtc *crtc = state->crtc;
   105		struct vs_dc *dc;
   106		struct vs_crtc *vcrtc;
   107		unsigned int output;
   108		dma_addr_t dma_addr;
   109	
   110		if (!state->visible) {
   111			vs_primary_plane_atomic_disable(plane, atomic_state);
   112			return;
   113		}
   114	
   115		vcrtc = drm_crtc_to_vs_crtc(crtc);
   116		output = vcrtc->id;
   117		dc = vcrtc->dc;
   118	
   119		regmap_update_bits(dc->regs, VSDC_FB_CONFIG(output),
   120				   VSDC_FB_CONFIG_FMT_MASK,
   121				   VSDC_FB_CONFIG_FMT(vs_state->format.color));
   122		regmap_update_bits(dc->regs, VSDC_FB_CONFIG(output),
   123				   VSDC_FB_CONFIG_SWIZZLE_MASK,
   124				   VSDC_FB_CONFIG_SWIZZLE(vs_state->format.swizzle));
   125		regmap_assign_bits(dc->regs, VSDC_FB_CONFIG(output),
   126				   VSDC_FB_CONFIG_UV_SWIZZLE_EN,
   127				   vs_state->format.uv_swizzle);
   128	
   129		/*
   130		 * Primary plane cannot be moved, no clipping is involved,
   131		 * so the non-clipped framebuffer address can be used.
   132		 */
 > 133		dma_addr = drm_fb_dma_get_gem_addr(fb, 0);
   134	
   135		regmap_write(dc->regs, VSDC_FB_ADDRESS(output),
   136			     lower_32_bits(dma_addr));
   137		regmap_write(dc->regs, VSDC_FB_STRIDE(output),
   138			     fb->pitches[0]);
   139	
   140		regmap_write(dc->regs, VSDC_FB_TOP_LEFT(output),
   141			     VSDC_MAKE_PLANE_POS(state->crtc_x, state->crtc_y));
   142		regmap_write(dc->regs, VSDC_FB_BOTTOM_RIGHT(output),
   143			     VSDC_MAKE_PLANE_POS(state->crtc_x + state->crtc_w,
   144						 state->crtc_y + state->crtc_h));
   145		regmap_write(dc->regs, VSDC_FB_SIZE(output),
   146			     VSDC_MAKE_PLANE_SIZE(state->crtc_w, state->crtc_h));
   147	
   148		regmap_write(dc->regs, VSDC_FB_BLEND_CONFIG(output),
   149			     VSDC_FB_BLEND_CONFIG_BLEND_DISABLE);
   150	
   151		vs_primary_plane_commit(dc, output);
   152	}
   153	

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