Hi Tejas,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on drm-intel/for-linux-next]
[also build test ERROR on drm-tip/drm-tip linus/master v5.13-rc3 next-20210525]
[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/Tejas-Upadhyay/drm-i915-gt-Introduce-timeslicing-for-userspace/20210525-221509
base:   git://anongit.freedesktop.org/drm-intel for-linux-next
config: i386-randconfig-r005-20210525 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # 
https://github.com/0day-ci/linux/commit/f2b7eecbbed425bfed1aea378181b5629bbcb34f
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review 
Tejas-Upadhyay/drm-i915-gt-Introduce-timeslicing-for-userspace/20210525-221509
        git checkout f2b7eecbbed425bfed1aea378181b5629bbcb34f
        # save the attached .config to linux build tree
        make W=1 ARCH=i386 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <[email protected]>

All errors (new ones prefixed by >>):

   In file included from include/linux/kernel.h:13,
                    from include/linux/list.h:9,
                    from drivers/gpu/drm/i915/gt/intel_engine_user.c:6:
   drivers/gpu/drm/i915/gt/intel_engine_user.c: In function 
'set_scheduler_caps':
>> drivers/gpu/drm/i915/gt/intel_engine_user.c:97:27: error: 
>> 'I915_ENGINE_TIMESLICE_BIT' undeclared (first use in this function); did you 
>> mean 'I915_ENGINE_HAS_TIMESLICES'?
      97 | #define MAP(x, y) { ilog2(I915_ENGINE_##x), 
ilog2(I915_SCHEDULER_CAP_##y) }
         |                           ^~~~~~~~~~~~
   include/linux/log2.h:158:23: note: in definition of macro 'ilog2'
     158 |  __builtin_constant_p(n) ? \
         |                       ^
   drivers/gpu/drm/i915/gt/intel_engine_user.c:101:3: note: in expansion of 
macro 'MAP'
     101 |   MAP(TIMESLICE_BIT, TIMESLICING),
         |   ^~~
   drivers/gpu/drm/i915/gt/intel_engine_user.c:97:27: note: each undeclared 
identifier is reported only once for each function it appears in
      97 | #define MAP(x, y) { ilog2(I915_ENGINE_##x), 
ilog2(I915_SCHEDULER_CAP_##y) }
         |                           ^~~~~~~~~~~~
   include/linux/log2.h:158:23: note: in definition of macro 'ilog2'
     158 |  __builtin_constant_p(n) ? \
         |                       ^
   drivers/gpu/drm/i915/gt/intel_engine_user.c:101:3: note: in expansion of 
macro 'MAP'
     101 |   MAP(TIMESLICE_BIT, TIMESLICING),
         |   ^~~


vim +97 drivers/gpu/drm/i915/gt/intel_engine_user.c

750e76b4f9f63c Chris Wilson   2019-08-06   90  
750e76b4f9f63c Chris Wilson   2019-08-06   91  static void 
set_scheduler_caps(struct drm_i915_private *i915)
750e76b4f9f63c Chris Wilson   2019-08-06   92  {
750e76b4f9f63c Chris Wilson   2019-08-06   93   static const struct {
750e76b4f9f63c Chris Wilson   2019-08-06   94           u8 engine;
750e76b4f9f63c Chris Wilson   2019-08-06   95           u8 sched;
750e76b4f9f63c Chris Wilson   2019-08-06   96   } map[] = {
750e76b4f9f63c Chris Wilson   2019-08-06  @97  #define MAP(x, y) { 
ilog2(I915_ENGINE_##x), ilog2(I915_SCHEDULER_CAP_##y) }
750e76b4f9f63c Chris Wilson   2019-08-06   98           MAP(HAS_PREEMPTION, 
PREEMPTION),
750e76b4f9f63c Chris Wilson   2019-08-06   99           MAP(HAS_SEMAPHORES, 
SEMAPHORES),
750e76b4f9f63c Chris Wilson   2019-08-06  100           MAP(SUPPORTS_STATS, 
ENGINE_BUSY_STATS),
f2b7eecbbed425 Tejas Upadhyay 2021-05-25  101           MAP(TIMESLICE_BIT, 
TIMESLICING),
750e76b4f9f63c Chris Wilson   2019-08-06  102  #undef MAP
750e76b4f9f63c Chris Wilson   2019-08-06  103   };
750e76b4f9f63c Chris Wilson   2019-08-06  104   struct intel_engine_cs *engine;
750e76b4f9f63c Chris Wilson   2019-08-06  105   u32 enabled, disabled;
750e76b4f9f63c Chris Wilson   2019-08-06  106  
750e76b4f9f63c Chris Wilson   2019-08-06  107   enabled = 0;
750e76b4f9f63c Chris Wilson   2019-08-06  108   disabled = 0;
750e76b4f9f63c Chris Wilson   2019-08-06  109   for_each_uabi_engine(engine, 
i915) { /* all engines must agree! */
750e76b4f9f63c Chris Wilson   2019-08-06  110           int i;
750e76b4f9f63c Chris Wilson   2019-08-06  111  
750e76b4f9f63c Chris Wilson   2019-08-06  112           if (engine->schedule)
750e76b4f9f63c Chris Wilson   2019-08-06  113                   enabled |= 
(I915_SCHEDULER_CAP_ENABLED |
750e76b4f9f63c Chris Wilson   2019-08-06  114                               
I915_SCHEDULER_CAP_PRIORITY);
750e76b4f9f63c Chris Wilson   2019-08-06  115           else
750e76b4f9f63c Chris Wilson   2019-08-06  116                   disabled |= 
(I915_SCHEDULER_CAP_ENABLED |
750e76b4f9f63c Chris Wilson   2019-08-06  117                                
I915_SCHEDULER_CAP_PRIORITY);
750e76b4f9f63c Chris Wilson   2019-08-06  118  
750e76b4f9f63c Chris Wilson   2019-08-06  119           for (i = 0; i < 
ARRAY_SIZE(map); i++) {
750e76b4f9f63c Chris Wilson   2019-08-06  120                   if 
(engine->flags & BIT(map[i].engine))
750e76b4f9f63c Chris Wilson   2019-08-06  121                           enabled 
|= BIT(map[i].sched);
750e76b4f9f63c Chris Wilson   2019-08-06  122                   else
750e76b4f9f63c Chris Wilson   2019-08-06  123                           
disabled |= BIT(map[i].sched);
750e76b4f9f63c Chris Wilson   2019-08-06  124           }
750e76b4f9f63c Chris Wilson   2019-08-06  125   }
750e76b4f9f63c Chris Wilson   2019-08-06  126  
750e76b4f9f63c Chris Wilson   2019-08-06  127   i915->caps.scheduler = enabled 
& ~disabled;
750e76b4f9f63c Chris Wilson   2019-08-06  128   if (!(i915->caps.scheduler & 
I915_SCHEDULER_CAP_ENABLED))
750e76b4f9f63c Chris Wilson   2019-08-06  129           i915->caps.scheduler = 
0;
750e76b4f9f63c Chris Wilson   2019-08-06  130  }
750e76b4f9f63c Chris Wilson   2019-08-06  131  

---
0-DAY CI Kernel Test Service, Intel Corporation
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