Re: [PATCH 2/2] drm/nvdla: Add driver support for NVDLA

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Hi Cai,

I love your patch! Yet something to improve:

[auto build test ERROR on drm/drm-next]
[also build test ERROR on drm-intel/for-linux-next drm-tip/drm-tip linus/master v5.18-rc3]
[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/intel-lab-lkp/linux/commits/Cai-Huoqing/drm-nvdla-Add-driver-support-for-NVDLA/20220419-220255
base:   git://anongit.freedesktop.org/drm/drm drm-next
config: h8300-randconfig-r014-20220420 (https://download.01.org/0day-ci/archive/20220420/202204201512.pp20MXT5-lkp@xxxxxxxxx/config)
compiler: h8300-linux-gcc (GCC) 11.2.0
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
        # https://github.com/intel-lab-lkp/linux/commit/7539e5487eb7d0c6f13c03bba596e51a2238106d
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Cai-Huoqing/drm-nvdla-Add-driver-support-for-NVDLA/20220419-220255
        git checkout 7539e5487eb7d0c6f13c03bba596e51a2238106d
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross W=1 O=build_dir ARCH=h8300 SHELL=/bin/bash drivers/gpu/

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

All error/warnings (new ones prefixed by >>):

>> make[5]: *** No rule to make target 'drivers/gpu/drm/nvdla/nvdla_engine_data.o', needed by 'drivers/gpu/drm/nvdla/built-in.a'.
>> make[5]: *** No rule to make target 'drivers/gpu/drm/nvdla/nvdla_engine_debug.o', needed by 'drivers/gpu/drm/nvdla/built-in.a'.
   make[5]: Target '__build' not remade because of errors.
--
>> drivers/gpu/drm/nvdla/nvdla_drm.c:45:9: warning: no previous prototype for 'dla_get_time_us' [-Wmissing-prototypes]
      45 | int64_t dla_get_time_us(void)
         |         ^~~~~~~~~~~~~~~
   drivers/gpu/drm/nvdla/nvdla_drm.c: In function 'nvdla_engine_isr':
>> drivers/gpu/drm/nvdla/nvdla_drm.c:75:18: warning: variable 'mask' set but not used [-Wunused-but-set-variable]
      75 |         uint32_t mask;
         |                  ^~~~
--
   drivers/gpu/drm/nvdla/nvdla_gem.c: In function 'nvdla_fill_task_desc':
>> drivers/gpu/drm/nvdla/nvdla_gem.c:39:17: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
      39 |                 (void __user *)local_task->address_list,
         |                 ^
--
   drivers/gpu/drm/nvdla/nvdla_scheduler.c: In function 'dla_op_completion':
>> drivers/gpu/drm/nvdla/nvdla_scheduler.c:513:26: warning: variable 'task' set but not used [-Wunused-but-set-variable]
     513 |         struct dla_task *task;
         |                          ^~~~
--
>> drivers/gpu/drm/nvdla/nvdla_scheduler.c:363: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Dequeue next operation of same type from list of operations
   drivers/gpu/drm/nvdla/nvdla_scheduler.c:505: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Handle operation completion notification
   drivers/gpu/drm/nvdla/nvdla_scheduler.c:610: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Read network configuration from DRAM, network descriptor address
   drivers/gpu/drm/nvdla/nvdla_scheduler.c:920: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Execute task selected by task scheduler
--
   drivers/gpu/drm/nvdla/nvdla_bdma.c: In function 'dla_bdma_dump_config':
>> drivers/gpu/drm/nvdla/nvdla_bdma.c:157:39: warning: variable 'bdma_surface' set but not used [-Wunused-but-set-variable]
     157 |         struct dla_bdma_surface_desc *bdma_surface;
         |                                       ^~~~~~~~~~~~
>> drivers/gpu/drm/nvdla/nvdla_bdma.c:156:34: warning: variable 'bdma_op' set but not used [-Wunused-but-set-variable]
     156 |         struct dla_bdma_op_desc *bdma_op;
         |                                  ^~~~~~~
--
   drivers/gpu/drm/nvdla/nvdla_conv.c: In function 'dla_conv_dump_config':
>> drivers/gpu/drm/nvdla/nvdla_conv.c:666:39: warning: variable 'conv_surface' set but not used [-Wunused-but-set-variable]
     666 |         struct dla_conv_surface_desc *conv_surface;
         |                                       ^~~~~~~~~~~~
>> drivers/gpu/drm/nvdla/nvdla_conv.c:665:34: warning: variable 'conv_op' set but not used [-Wunused-but-set-variable]
     665 |         struct dla_conv_op_desc *conv_op;
         |                                  ^~~~~~~
--
>> drivers/gpu/drm/nvdla/nvdla_engine.c:67: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Get DMA data cube address
   drivers/gpu/drm/nvdla/nvdla_engine.c:88: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Read input buffer address
--
>> drivers/gpu/drm/nvdla/nvdla_bdma.c:56: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Program BDMA slot for transfer
--
   drivers/gpu/drm/nvdla/nvdla_sdp.c: In function 'processor_sdp_program':
>> drivers/gpu/drm/nvdla/nvdla_sdp.c:190:18: warning: variable 'atom_size' set but not used [-Wunused-but-set-variable]
     190 |         uint32_t atom_size;
         |                  ^~~~~~~~~
   drivers/gpu/drm/nvdla/nvdla_sdp.c: In function 'dla_sdp_dump_config':
>> drivers/gpu/drm/nvdla/nvdla_sdp.c:708:38: warning: variable 'sdp_surface' set but not used [-Wunused-but-set-variable]
     708 |         struct dla_sdp_surface_desc *sdp_surface;
         |                                      ^~~~~~~~~~~
>> drivers/gpu/drm/nvdla/nvdla_sdp.c:707:33: warning: variable 'sdp_op' set but not used [-Wunused-but-set-variable]
     707 |         struct dla_sdp_op_desc *sdp_op;
         |                                 ^~~~~~
   At top level:
   drivers/gpu/drm/nvdla/nvdla_sdp.c:118:22: warning: 'map_perf_nan_inf' defined but not used [-Wunused-const-variable=]
     118 | static const uint8_t map_perf_nan_inf[] = {
         |                      ^~~~~~~~~~~~~~~~
   drivers/gpu/drm/nvdla/nvdla_sdp.c:113:22: warning: 'map_perf_sat' defined but not used [-Wunused-const-variable=]
     113 | static const uint8_t map_perf_sat[] = {
         |                      ^~~~~~~~~~~~
   drivers/gpu/drm/nvdla/nvdla_sdp.c:108:22: warning: 'map_perf_lut' defined but not used [-Wunused-const-variable=]
     108 | static const uint8_t map_perf_lut[] = {
         |                      ^~~~~~~~~~~~
   drivers/gpu/drm/nvdla/nvdla_sdp.c:103:22: warning: 'map_perf_dma' defined but not used [-Wunused-const-variable=]
     103 | static const uint8_t map_perf_dma[] = {
         |                      ^~~~~~~~~~~~
--
   drivers/gpu/drm/nvdla/nvdla_cdp.c: In function 'dla_cdp_dump_config':
>> drivers/gpu/drm/nvdla/nvdla_cdp.c:280:38: warning: variable 'cdp_surface' set but not used [-Wunused-but-set-variable]
     280 |         struct dla_cdp_surface_desc *cdp_surface;
         |                                      ^~~~~~~~~~~
>> drivers/gpu/drm/nvdla/nvdla_cdp.c:279:33: warning: variable 'cdp_op' set but not used [-Wunused-but-set-variable]
     279 |         struct dla_cdp_op_desc *cdp_op;
         |                                 ^~~~~~
   At top level:
   drivers/gpu/drm/nvdla/nvdla_cdp.c:28:22: warning: 'map_perf_lut' defined but not used [-Wunused-const-variable=]
      28 | static const uint8_t map_perf_lut[] = {
         |                      ^~~~~~~~~~~~
   drivers/gpu/drm/nvdla/nvdla_cdp.c:23:22: warning: 'map_perf_dma' defined but not used [-Wunused-const-variable=]
      23 | static const uint8_t map_perf_dma[] = {
         |                      ^~~~~~~~~~~~
..


vim +/dla_get_time_us +45 drivers/gpu/drm/nvdla/nvdla_drm.c

    44	
  > 45	int64_t dla_get_time_us(void)
    46	{
    47		return ktime_get_ns() / NSEC_PER_USEC;
    48	}
    49	
    50	void dla_reg_write(void *driver_context, uint32_t addr, uint32_t reg)
    51	{
    52		struct nvdla_device *nvdla_dev =
    53				(struct nvdla_device *)driver_context;
    54	
    55		if (!nvdla_dev)
    56			return;
    57	
    58		writel(reg, nvdla_dev->base + addr);
    59	}
    60	
    61	uint32_t dla_reg_read(void *driver_context, uint32_t addr)
    62	{
    63		struct nvdla_device *nvdla_dev =
    64				(struct nvdla_device *)driver_context;
    65	
    66		if (!nvdla_dev)
    67			return 0;
    68	
    69		return readl(nvdla_dev->base + addr);
    70	}
    71	
    72	static irqreturn_t nvdla_engine_isr(int32_t irq, void *data)
    73	{
    74		unsigned long flags;
  > 75		uint32_t mask;
    76		uint32_t reg;
    77		struct dla_processor *processor = NULL;
    78		struct dla_processor_group *group;
    79		struct dla_engine *engine;
    80		struct nvdla_device *nvdla_dev = (struct nvdla_device *)data;
    81	
    82		if (!nvdla_dev)
    83			return IRQ_NONE;
    84	
    85		engine = nvdla_dev->engine_context;
    86		spin_lock_irqsave(&nvdla_dev->nvdla_lock, flags);
    87	
    88		mask = glb_reg_read(engine, S_INTR_MASK);
    89		reg = glb_reg_read(engine, S_INTR_STATUS);
    90	
    91		if (reg & MASK(GLB_S_INTR_STATUS_0, CACC_DONE_STATUS0)) {
    92			processor = &engine->processors[DLA_OP_CONV];
    93			group = &processor->groups[0];
    94			group->events |= (1 << DLA_EVENT_OP_COMPLETED);
    95		}
    96		if (reg & MASK(GLB_S_INTR_STATUS_0, CACC_DONE_STATUS1)) {
    97			processor = &engine->processors[DLA_OP_CONV];
    98			group = &processor->groups[1];
    99			group->events |= (1 << DLA_EVENT_OP_COMPLETED);
   100		}
   101		if (reg & MASK(GLB_S_INTR_STATUS_0, SDP_DONE_STATUS0)) {
   102			processor = &engine->processors[DLA_OP_SDP];
   103			group = &processor->groups[0];
   104			group->events |= (1 << DLA_EVENT_OP_COMPLETED);
   105		}
   106		if (reg & MASK(GLB_S_INTR_STATUS_0, SDP_DONE_STATUS1)) {
   107			processor = &engine->processors[DLA_OP_SDP];
   108			group = &processor->groups[1];
   109			group->events |= (1 << DLA_EVENT_OP_COMPLETED);
   110		}
   111		if (reg & MASK(GLB_S_INTR_STATUS_0, CDP_DONE_STATUS0)) {
   112			processor = &engine->processors[DLA_OP_CDP];
   113			group = &processor->groups[0];
   114			group->events |= (1 << DLA_EVENT_OP_COMPLETED);
   115		}
   116		if (reg & MASK(GLB_S_INTR_STATUS_0, CDP_DONE_STATUS1)) {
   117			processor = &engine->processors[DLA_OP_CDP];
   118			group = &processor->groups[1];
   119			group->events |= (1 << DLA_EVENT_OP_COMPLETED);
   120		}
   121		if (reg & MASK(GLB_S_INTR_STATUS_0, RUBIK_DONE_STATUS0)) {
   122			processor = &engine->processors[DLA_OP_RUBIK];
   123			group = &processor->groups[0];
   124			group->events |= (1 << DLA_EVENT_OP_COMPLETED);
   125		}
   126		if (reg & MASK(GLB_S_INTR_STATUS_0, RUBIK_DONE_STATUS1)) {
   127			processor = &engine->processors[DLA_OP_RUBIK];
   128			group = &processor->groups[1];
   129			group->events |= (1 << DLA_EVENT_OP_COMPLETED);
   130		}
   131		if (reg & MASK(GLB_S_INTR_STATUS_0, PDP_DONE_STATUS0)) {
   132			processor = &engine->processors[DLA_OP_PDP];
   133			group = &processor->groups[0];
   134			group->events |= (1 << DLA_EVENT_OP_COMPLETED);
   135		}
   136		if (reg & MASK(GLB_S_INTR_STATUS_0, PDP_DONE_STATUS1)) {
   137			processor = &engine->processors[DLA_OP_PDP];
   138			group = &processor->groups[1];
   139			group->events |= (1 << DLA_EVENT_OP_COMPLETED);
   140		}
   141		if (reg & MASK(GLB_S_INTR_STATUS_0, BDMA_DONE_STATUS0)) {
   142			processor = &engine->processors[DLA_OP_BDMA];
   143			group = &processor->groups[0];
   144			group->events |= (1 << DLA_EVENT_OP_COMPLETED);
   145		}
   146		if (reg & MASK(GLB_S_INTR_STATUS_0, BDMA_DONE_STATUS1)) {
   147			processor = &engine->processors[DLA_OP_BDMA];
   148			group = &processor->groups[1];
   149			group->events |= (1 << DLA_EVENT_OP_COMPLETED);
   150		}
   151		if (reg & MASK(GLB_S_INTR_STATUS_0, CDMA_DAT_DONE_STATUS0)) {
   152			processor = &engine->processors[DLA_OP_CONV];
   153			group = &processor->groups[0];
   154			group->events |= (1 << DLA_EVENT_CDMA_DT_DONE);
   155		}
   156		if (reg & MASK(GLB_S_INTR_STATUS_0, CDMA_DAT_DONE_STATUS1)) {
   157			processor = &engine->processors[DLA_OP_CONV];
   158			group = &processor->groups[1];
   159			group->events |= (1 << DLA_EVENT_CDMA_DT_DONE);
   160		}
   161		if (reg & MASK(GLB_S_INTR_STATUS_0, CDMA_WT_DONE_STATUS0)) {
   162			processor = &engine->processors[DLA_OP_CONV];
   163			group = &processor->groups[0];
   164			group->events |= (1 << DLA_EVENT_CDMA_WT_DONE);
   165		}
   166		if (reg & MASK(GLB_S_INTR_STATUS_0, CDMA_WT_DONE_STATUS1)) {
   167			processor = &engine->processors[DLA_OP_CONV];
   168			group = &processor->groups[1];
   169			group->events |= (1 << DLA_EVENT_CDMA_WT_DONE);
   170		}
   171	
   172		glb_reg_write(engine, S_INTR_STATUS, reg);
   173		mask = glb_reg_read(engine, S_INTR_MASK);
   174		reg = glb_reg_read(engine, S_INTR_STATUS);
   175	
   176		complete(&nvdla_dev->event_notifier);
   177		spin_unlock_irqrestore(&nvdla_dev->nvdla_lock, flags);
   178	
   179		return IRQ_HANDLED;
   180	}
   181	

-- 
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