[PATCH 14/16] drm/i915/guc/slpc: Sysfs hooks for slpc

[kernel test robot]

Hi Vinay,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on drm-tip/drm-tip]
[cannot apply to drm-intel/for-linux-next drm-exynos/exynos-drm-next tegra-drm/drm/tegra/for-next drm/drm-next v5.13 next-20210709]
[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]

url:    https://github.com/0day-ci/linux/commits/Vinay-Belgaumkar/Enable-GuC-based-power-management-features/20210710-092520
base:   git://anongit.freedesktop.org/drm/drm-tip drm-tip
config: x86_64-randconfig-a014-20210709 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 8d69635ed9ecf36fd0ca85906bfde17949671cbe)
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
        # install x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        # https://github.com/0day-ci/linux/commit/8388422991b4e0e4da460328634a7ec1d278de6a
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Vinay-Belgaumkar/Enable-GuC-based-power-management-features/20210710-092520
        git checkout 8388422991b4e0e4da460328634a7ec1d278de6a
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

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

All warnings (new ones prefixed by >>):

>> drivers/gpu/drm/i915/gt/intel_rps.c:1969:5: warning: no previous prototype for function 'intel_rps_read_punit_req' [-Wmissing-prototypes]
   u32 intel_rps_read_punit_req(struct intel_rps *rps)
       ^
   drivers/gpu/drm/i915/gt/intel_rps.c:1969:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   u32 intel_rps_read_punit_req(struct intel_rps *rps)
   ^
   static 
>> drivers/gpu/drm/i915/gt/intel_rps.c:1978:5: warning: no previous prototype for function 'intel_rps_get_req' [-Wmissing-prototypes]
   u32 intel_rps_get_req(struct intel_rps *rps, u32 pureq)
       ^
   drivers/gpu/drm/i915/gt/intel_rps.c:1978:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   u32 intel_rps_get_req(struct intel_rps *rps, u32 pureq)
   ^
   static 
>> drivers/gpu/drm/i915/gt/intel_rps.c:1985:5: warning: no previous prototype for function 'intel_rps_read_punit_req_frequency' [-Wmissing-prototypes]
   u32 intel_rps_read_punit_req_frequency(struct intel_rps *rps)
       ^
   drivers/gpu/drm/i915/gt/intel_rps.c:1985:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   u32 intel_rps_read_punit_req_frequency(struct intel_rps *rps)
   ^
   static 
   3 warnings generated.


vim +/intel_rps_read_punit_req +1969 drivers/gpu/drm/i915/gt/intel_rps.c

  1968	
> 1969	u32 intel_rps_read_punit_req(struct intel_rps *rps)
  1970	{
  1971		struct intel_uncore *uncore = rps_to_uncore(rps);
  1972	
  1973		u32 pureq = intel_uncore_read(uncore, GEN6_RPNSWREQ);
  1974	
  1975		return pureq;
  1976	}
  1977	
> 1978	u32 intel_rps_get_req(struct intel_rps *rps, u32 pureq)
  1979	{
  1980		u32 req = pureq >> GEN9_SW_REQ_UNSLICE_RATIO_SHIFT;
  1981	
  1982		return req;
  1983	}
  1984	
> 1985	u32 intel_rps_read_punit_req_frequency(struct intel_rps *rps)
  1986	{
  1987		u32 freq = intel_rps_get_req(rps, intel_rps_read_punit_req(rps));
  1988	
  1989		return intel_gpu_freq(rps, freq);
  1990	}
  1991	

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