[thomash:topic/ttm_branch_v5 7/15] drivers/gpu/drm/drm_cache.c:386:54: error: 'has_movntdqa' undeclared

[thomash:topic/ttm_branch_v5 7/15] drivers/gpu/drm/drm_cache.c:386:54: error: 'has_movntdqa' undeclared

[kernel test robot]

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tree:   git://people.freedesktop.org/~thomash/linux topic/ttm_branch_v5
head:   9f73f48e82d8cc2d9a3f649b8d86d290bc76f1be
commit: 4f04be58645eac4d7d401dffff634ed246a6b6b9 [7/15] drm: Add a prefetching memcpy_from_wc
config: ia64-allmodconfig (attached as .config)
compiler: ia64-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git remote add thomash git://people.freedesktop.org/~thomash/linux
        git fetch --no-tags thomash topic/ttm_branch_v5
        git checkout 4f04be58645eac4d7d401dffff634ed246a6b6b9
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=ia64 

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

All errors (new ones prefixed by >>):

   In file included from include/linux/init.h:5,
                    from include/linux/io.h:10,
                    from include/linux/dma-buf-map.h:9,
                    from drivers/gpu/drm/drm_cache.c:31:
   drivers/gpu/drm/drm_cache.c: In function 'drm_memcpy_from_wc':
>> drivers/gpu/drm/drm_cache.c:386:54: error: 'has_movntdqa' undeclared (first use in this function)
     386 |  if (IS_ENABLED(CONFIG_X86) && static_branch_likely(&has_movntdqa)) {
         |                                                      ^~~~~~~~~~~~
   include/linux/compiler.h:77:40: note: in definition of macro 'likely'
      77 | # define likely(x) __builtin_expect(!!(x), 1)
         |                                        ^
   include/linux/jump_label.h:495:34: note: in expansion of macro 'likely_notrace'
     495 | #define static_branch_likely(x)  likely_notrace(static_key_enabled(&(x)->key))
         |                                  ^~~~~~~~~~~~~~
   include/linux/jump_label.h:495:49: note: in expansion of macro 'static_key_enabled'
     495 | #define static_branch_likely(x)  likely_notrace(static_key_enabled(&(x)->key))
         |                                                 ^~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/drm_cache.c:386:32: note: in expansion of macro 'static_branch_likely'
     386 |  if (IS_ENABLED(CONFIG_X86) && static_branch_likely(&has_movntdqa)) {
         |                                ^~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/drm_cache.c:386:54: note: each undeclared identifier is reported only once for each function it appears in
     386 |  if (IS_ENABLED(CONFIG_X86) && static_branch_likely(&has_movntdqa)) {
         |                                                      ^~~~~~~~~~~~
   include/linux/compiler.h:77:40: note: in definition of macro 'likely'
      77 | # define likely(x) __builtin_expect(!!(x), 1)
         |                                        ^
   include/linux/jump_label.h:495:34: note: in expansion of macro 'likely_notrace'
     495 | #define static_branch_likely(x)  likely_notrace(static_key_enabled(&(x)->key))
         |                                  ^~~~~~~~~~~~~~
   include/linux/jump_label.h:495:49: note: in expansion of macro 'static_key_enabled'
     495 | #define static_branch_likely(x)  likely_notrace(static_key_enabled(&(x)->key))
         |                                                 ^~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/drm_cache.c:386:32: note: in expansion of macro 'static_branch_likely'
     386 |  if (IS_ENABLED(CONFIG_X86) && static_branch_likely(&has_movntdqa)) {
         |                                ^~~~~~~~~~~~~~~~~~~~
>> drivers/gpu/drm/drm_cache.c:387:3: error: implicit declaration of function '__drm_memcpy_from_wc'; did you mean 'drm_memcpy_from_wc'? [-Werror=implicit-function-declaration]
     387 |   __drm_memcpy_from_wc(dst->is_iomem ?
         |   ^~~~~~~~~~~~~~~~~~~~
         |   drm_memcpy_from_wc
   cc1: some warnings being treated as errors


vim +/has_movntdqa +386 drivers/gpu/drm/drm_cache.c

   371	
   372	/**
   373	 * drm_memcpy_from_wc - Perform the fastest available memcpy from a source
   374	 * that may be WC.
   375	 * @dst: The destination pointer
   376	 * @src: The source pointer
   377	 * @len: The size of the area o transfer in bytes
   378	 *
   379	 * Tries an arch optimized memcpy for prefetching reading out of a WC region,
   380	 * and if no such beast is available, falls back to a normal memcpy.
   381	 */
   382	void drm_memcpy_from_wc(struct dma_buf_map *dst,
   383				const struct dma_buf_map *src,
   384				unsigned long len)
   385	{
 > 386		if (IS_ENABLED(CONFIG_X86) && static_branch_likely(&has_movntdqa)) {
 > 387			__drm_memcpy_from_wc(dst->is_iomem ?
   388					     (void __force *)dst->vaddr_iomem :
   389					     dst->vaddr,
   390					     src->is_iomem ?
   391					     (void const __force *)src->vaddr_iomem :
   392					     src->vaddr,
   393					     len);
   394			return;
   395		}
   396	
   397		memcpy_fallback(dst, src, len);
   398	}
   399	EXPORT_SYMBOL(drm_memcpy_from_wc);
   400	

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

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