linux-kernel - [mlankhorst:xe 161/165] drivers/gpu/drm/xe/xe_ggtt.c:138:6: error: no previous prototype for 'xe_ggtt

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Date:   Thu, 27 Jan 2022 19:37:26 +0800
From:   kernel test robot <lkp@...el.com>
To:     Jason Ekstrand <jason@...kstrand.net>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>
Subject: [mlankhorst:xe 161/165] drivers/gpu/drm/xe/xe_ggtt.c:138:6: error:
 no previous prototype for 'xe_ggtt_invalidate'

tree:   git://people.freedesktop.org/~mlankhorst/linux xe
head:   4bc3039b4403c76a13d58f7ac1f7c07dca6f88d8
commit: 97b49f6fa009a5e8c280503c7f33fedb5d3ddf25 [161/165] xe/ggtt: Invalidate the GGTT TLBs after any updates
config: i386-allyesconfig (https://download.01.org/0day-ci/archive/20220127/202201271930.2Cnt0yRu-lkp@intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        git remote add mlankhorst git://people.freedesktop.org/~mlankhorst/linux
        git fetch --no-tags mlankhorst xe
        git checkout 97b49f6fa009a5e8c280503c7f33fedb5d3ddf25
        # save the config file to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   In file included from drivers/gpu/drm/xe/xe_ggtt.c:14:
   drivers/gpu/drm/xe/xe_mmio.h: In function 'xe_mmio_read64':
   drivers/gpu/drm/xe/xe_mmio.h:28:9: error: implicit declaration of function 'readq'; did you mean 'readl'? [-Werror=implicit-function-declaration]
      28 |  return readq(xe->mmio.regs + reg);
         |         ^~~~~
         |         readl
   drivers/gpu/drm/xe/xe_ggtt.c: In function 'xe_ggtt_set_pte':
   drivers/gpu/drm/xe/xe_ggtt.c:55:2: error: implicit declaration of function 'writeq'; did you mean 'writel'? [-Werror=implicit-function-declaration]
      55 |  writeq(pte, &ggtt->gsm[addr >> GEN8_PTE_SHIFT]);
         |  ^~~~~~
         |  writel
   drivers/gpu/drm/xe/xe_ggtt.c: At top level:
>> drivers/gpu/drm/xe/xe_ggtt.c:138:6: error: no previous prototype for 'xe_ggtt_invalidate' [-Werror=missing-prototypes]
     138 | void xe_ggtt_invalidate(struct xe_device *xe)
         |      ^~~~~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors


vim +/xe_ggtt_invalidate +138 drivers/gpu/drm/xe/xe_ggtt.c

   137	
 > 138	void xe_ggtt_invalidate(struct xe_device *xe)
   139	{
   140		/* TODO: For GuC, we need to do something different here */
   141	
   142		/* TODO: i915 makes comments about this being uncached and
   143		 * therefore flushing WC buffers.  Is that really true here?
   144		 */
   145		xe_mmio_write32(xe, GFX_FLSH_CNTL_GEN6.reg, GFX_FLSH_CNTL_EN);
   146	}
   147	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org