Re: [PATCH 3/3] media: atomisp: ia_css_debug: remove unused codes

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Hi Kate,

On 6/5/23 12:29, Kate Hsuan wrote:
> This portion of the codes was not referenced so it can be completely
> removed.
> 
> Signed-off-by: Kate Hsuan <hpa@xxxxxxxxxx>

So this patch fixes compile errors introduced by the first patch
and MAX_THREAD_NUM is still used after this by code in
"#ifdef HAS_WATCHDOG_SP_THREAD_DEBUG" blocks.

Note HAS_WATCHDOG_SP_THREAD_DEBUG is never set.

So IMHO the right thing to do here is:

1. Introduce a new patch which should be the first patch
   of the set which removes all code blocks protected by
   "#ifdef HAS_WATCHDOG_SP_THREAD_DEBUG" as well as
   the "uncomment this here" HAS_WATCHDOG_SP_THREAD_DEBUG bits
   in drivers/staging/media/atomisp/pci/hive_isp_css_common/debug_global.h

2.Make this patch the second (first patch after the
  HAS_WATCHDOG_SP_THREAD_DEBUG removal) patch of the series.

  And instead of renaming MAX_THREAD_NUM to
  MAX_THREAD_NUM_2400 / MAX_THREAD_NUM_2401 just entirely drop it
  and also drop the following now no longer used defines:
  SH_CSS_SP_INTERNAL_METADATA_THREAD
  SH_CSS_SP_INTERNAL_SERVICE_THREAD
  SH_CSS_MAX_SP_INTERNAL_THREADS

Regards,

Hans


SH_CSS_SP_INTERNAL_METADATA_THREAD and
  
the entire now no longer 

> ---
>  .../runtime/debug/interface/ia_css_debug.h    |  6 --
>  .../pci/runtime/debug/src/ia_css_debug.c      | 76 +------------------
>  2 files changed, 2 insertions(+), 80 deletions(-)
> 
> diff --git a/drivers/staging/media/atomisp/pci/runtime/debug/interface/ia_css_debug.h b/drivers/staging/media/atomisp/pci/runtime/debug/interface/ia_css_debug.h
> index fff89e9b4b01..3a3d72c6eaaa 100644
> --- a/drivers/staging/media/atomisp/pci/runtime/debug/interface/ia_css_debug.h
> +++ b/drivers/staging/media/atomisp/pci/runtime/debug/interface/ia_css_debug.h
> @@ -141,12 +141,6 @@ static inline void __printf(2, 0) ia_css_debug_vdtrace(unsigned int level,
>  __printf(2, 3) void ia_css_debug_dtrace(unsigned int level,
>  					const char *fmt, ...);
>  
> -/*! @brief Dump sp thread's stack contents
> - * SP thread's stack contents are set to 0xcafecafe. This function dumps the
> - * stack to inspect if the stack's boundaries are compromised.
> - * @return	None
> - */
> -void ia_css_debug_dump_sp_stack_info(void);
>  
>  /*! @brief Function to set the global dtrace verbosity level.
>   * @param[in]	trace_level	Maximum level of the messages to be traced.
> diff --git a/drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c b/drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c
> index bb6204cb42c5..bb30146c5fe7 100644
> --- a/drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c
> +++ b/drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c
> @@ -105,7 +105,8 @@
>   * TODO:SH_CSS_MAX_SP_THREADS is not the max number of sp threads
>   * future rework should fix this and remove the define MAX_THREAD_NUM
>   */
> -#define MAX_THREAD_NUM (SH_CSS_MAX_SP_THREADS + SH_CSS_MAX_SP_INTERNAL_THREADS)
> +#define MAX_THREAD_NUM_2400 (SH_CSS_MAX_SP_THREADS + SH_CSS_MAX_SP_INTERNAL_THREADS_2400)
> +#define MAX_THREAD_NUM_2401 (SH_CSS_MAX_SP_THREADS + SH_CSS_MAX_SP_INTERNAL_THREADS_2401)
>  
>  static struct pipe_graph_class {
>  	bool do_init;
> @@ -147,79 +148,6 @@ void ia_css_debug_dtrace(unsigned int level, const char *fmt, ...)
>  	va_end(ap);
>  }
>  
> -static void debug_dump_long_array_formatted(
> -    const sp_ID_t sp_id,
> -    hrt_address stack_sp_addr,
> -    unsigned int stack_size)
> -{
> -	unsigned int i;
> -	u32 val;
> -	u32 addr = (uint32_t)stack_sp_addr;
> -	u32 stack_size_words = CEIL_DIV(stack_size, sizeof(uint32_t));
> -
> -	/* When size is not multiple of four, last word is only relevant for
> -	 * remaining bytes */
> -	for (i = 0; i < stack_size_words; i++) {
> -		val = sp_dmem_load_uint32(sp_id, (hrt_address)addr);
> -		if ((i % 8) == 0)
> -			ia_css_debug_dtrace(IA_CSS_DEBUG_VERBOSE, "\n");
> -
> -		ia_css_debug_dtrace(IA_CSS_DEBUG_VERBOSE, "0x%08x ", val);
> -		addr += sizeof(uint32_t);
> -	}
> -
> -	ia_css_debug_dtrace(IA_CSS_DEBUG_VERBOSE, "\n");
> -}
> -
> -static void debug_dump_sp_stack_info(
> -    const sp_ID_t sp_id)
> -{
> -	const struct ia_css_fw_info *fw;
> -	unsigned int HIVE_ADDR_sp_threads_stack;
> -	unsigned int HIVE_ADDR_sp_threads_stack_size;
> -	u32 stack_sizes[MAX_THREAD_NUM];
> -	u32 stack_sp_addr[MAX_THREAD_NUM];
> -	unsigned int i;
> -
> -	fw = &sh_css_sp_fw;
> -
> -	ia_css_debug_dtrace(IA_CSS_DEBUG_VERBOSE, "sp_id(%u) stack info\n", sp_id);
> -	ia_css_debug_dtrace(IA_CSS_DEBUG_VERBOSE,
> -			    "from objects stack_addr_offset:0x%x stack_size_offset:0x%x\n",
> -			    fw->info.sp.threads_stack,
> -			    fw->info.sp.threads_stack_size);
> -
> -	HIVE_ADDR_sp_threads_stack = fw->info.sp.threads_stack;
> -	HIVE_ADDR_sp_threads_stack_size = fw->info.sp.threads_stack_size;
> -
> -	if (fw->info.sp.threads_stack == 0 ||
> -	    fw->info.sp.threads_stack_size == 0)
> -		return;
> -
> -	(void)HIVE_ADDR_sp_threads_stack;
> -	(void)HIVE_ADDR_sp_threads_stack_size;
> -
> -	sp_dmem_load(sp_id,
> -		     (unsigned int)sp_address_of(sp_threads_stack),
> -		     &stack_sp_addr, sizeof(stack_sp_addr));
> -	sp_dmem_load(sp_id,
> -		     (unsigned int)sp_address_of(sp_threads_stack_size),
> -		     &stack_sizes, sizeof(stack_sizes));
> -
> -	for (i = 0 ; i < MAX_THREAD_NUM; i++) {
> -		ia_css_debug_dtrace(IA_CSS_DEBUG_VERBOSE,
> -				    "thread: %u stack_addr: 0x%08x stack_size: %u\n",
> -				    i, stack_sp_addr[i], stack_sizes[i]);
> -		debug_dump_long_array_formatted(sp_id, (hrt_address)stack_sp_addr[i],
> -						stack_sizes[i]);
> -	}
> -}
> -
> -void ia_css_debug_dump_sp_stack_info(void)
> -{
> -	debug_dump_sp_stack_info(SP0_ID);
> -}
> -
>  void ia_css_debug_set_dtrace_level(const unsigned int trace_level)
>  {
>  	dbg_level = trace_level;




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