[U-Boot] [PATCH] ARM: cache_v7: use __weak

[Albert ARIBAUD]

Hi Jeroen,

On Mon, 23 Jun 2014 22:07:04 +0200, Jeroen Hofstee
<jeroen at myspectrum.nl> wrote:

> This is not only more readable but also prevents a warning
> about a missing prototype. The prototypes which are actually
> missing are added.
> 
> cc: Albert Aribaud <albert.u.boot at aribaud.net>
> Signed-off-by: Jeroen Hofstee <jeroen at myspectrum.nl>
> ---
>  arch/arm/cpu/armv7/cache_v7.c | 45 +++++++------------------------------------
>  arch/arm/include/asm/cache.h  |  3 +++
>  arch/arm/lib/cache-cp15.c     |  9 ++-------
>  arch/arm/lib/cache.c          | 13 +++----------
>  4 files changed, 15 insertions(+), 55 deletions(-)
> 
> diff --git a/arch/arm/cpu/armv7/cache_v7.c b/arch/arm/cpu/armv7/cache_v7.c
> index bc5fc42..a2c4032 100644
> --- a/arch/arm/cpu/armv7/cache_v7.c
> +++ b/arch/arm/cpu/armv7/cache_v7.c
> @@ -354,41 +354,10 @@ void invalidate_icache_all(void)
>  }
>  #endif
>  
> -/*
> - * Stub implementations for outer cache operations
> - */
> -void __v7_outer_cache_enable(void)
> -{
> -}
> -void v7_outer_cache_enable(void)
> -	__attribute__((weak, alias("__v7_outer_cache_enable")));
> -
> -void __v7_outer_cache_disable(void)
> -{
> -}
> -void v7_outer_cache_disable(void)
> -	__attribute__((weak, alias("__v7_outer_cache_disable")));
> -
> -void __v7_outer_cache_flush_all(void)
> -{
> -}
> -void v7_outer_cache_flush_all(void)
> -	__attribute__((weak, alias("__v7_outer_cache_flush_all")));
> -
> -void __v7_outer_cache_inval_all(void)
> -{
> -}
> -void v7_outer_cache_inval_all(void)
> -	__attribute__((weak, alias("__v7_outer_cache_inval_all")));
> -
> -void __v7_outer_cache_flush_range(u32 start, u32 end)
> -{
> -}
> -void v7_outer_cache_flush_range(u32 start, u32 end)
> -	__attribute__((weak, alias("__v7_outer_cache_flush_range")));
> -
> -void __v7_outer_cache_inval_range(u32 start, u32 end)
> -{
> -}
> -void v7_outer_cache_inval_range(u32 start, u32 end)
> -	__attribute__((weak, alias("__v7_outer_cache_inval_range")));
> +/*  Stub implementations for outer cache operations */
> +__weak void v7_outer_cache_enable(void) {}
> +__weak void v7_outer_cache_disable(void) {}
> +__weak void v7_outer_cache_flush_all(void) {}
> +__weak void v7_outer_cache_inval_all(void) {}
> +__weak void v7_outer_cache_flush_range(u32 start, u32 end) {}
> +__weak void v7_outer_cache_inval_range(u32 start, u32 end) {}
> diff --git a/arch/arm/include/asm/cache.h b/arch/arm/include/asm/cache.h
> index ddebbc8..a836e9f 100644
> --- a/arch/arm/include/asm/cache.h
> +++ b/arch/arm/include/asm/cache.h
> @@ -29,6 +29,9 @@ void l2_cache_enable(void);
>  void l2_cache_disable(void);
>  void set_section_dcache(int section, enum dcache_option option);
>  
> +void arm_init_before_mmu(void);
> +void arm_init_domains(void);
> +void cpu_cache_initialization(void);
>  void dram_bank_mmu_setup(int bank);
>  
>  #endif
> diff --git a/arch/arm/lib/cache-cp15.c b/arch/arm/lib/cache-cp15.c
> index 8642010..5fdfdbf 100644
> --- a/arch/arm/lib/cache-cp15.c
> +++ b/arch/arm/lib/cache-cp15.c
> @@ -14,11 +14,9 @@
>  
>  DECLARE_GLOBAL_DATA_PTR;
>  
> -void __arm_init_before_mmu(void)
> +__weak void arm_init_before_mmu(void)
>  {
>  }
> -void arm_init_before_mmu(void)
> -	__attribute__((weak, alias("__arm_init_before_mmu")));
>  
>  __weak void arm_init_domains(void)
>  {
> @@ -44,14 +42,11 @@ void set_section_dcache(int section, enum dcache_option option)
>  	page_table[section] = value;
>  }
>  
> -void __mmu_page_table_flush(unsigned long start, unsigned long stop)
> +__weak void mmu_page_table_flush(unsigned long start, unsigned long stop)
>  {
>  	debug("%s: Warning: not implemented\n", __func__);
>  }
>  
> -void mmu_page_table_flush(unsigned long start, unsigned long stop)
> -	__attribute__((weak, alias("__mmu_page_table_flush")));
> -
>  void mmu_set_region_dcache_behaviour(u32 start, int size,
>  				     enum dcache_option option)
>  {
> diff --git a/arch/arm/lib/cache.c b/arch/arm/lib/cache.c
> index 4f6b9f0..4e597a4 100644
> --- a/arch/arm/lib/cache.c
> +++ b/arch/arm/lib/cache.c
> @@ -9,7 +9,7 @@
>  
>  #include <common.h>
>  
> -void  __flush_cache(unsigned long start, unsigned long size)
> +__weak void flush_cache(unsigned long start, unsigned long size)
>  {
>  #if defined(CONFIG_ARM1136)
>  
> @@ -31,28 +31,21 @@ void  __flush_cache(unsigned long start, unsigned long size)
>  #endif /* CONFIG_ARM926EJS */
>  	return;
>  }
> -void  flush_cache(unsigned long start, unsigned long size)
> -	__attribute__((weak, alias("__flush_cache")));
>  
>  /*
>   * Default implementation:
>   * do a range flush for the entire range
>   */
> -void	__flush_dcache_all(void)
> +__weak void flush_dcache_all(void)
>  {
>  	flush_cache(0, ~0);
>  }
> -void	flush_dcache_all(void)
> -	__attribute__((weak, alias("__flush_dcache_all")));
> -
>  
>  /*
>   * Default implementation of enable_caches()
>   * Real implementation should be in platform code
>   */
> -void __enable_caches(void)
> +__weak void enable_caches(void)
>  {
>  	puts("WARNING: Caches not enabled\n");
>  }
> -void enable_caches(void)
> -	__attribute__((weak, alias("__enable_caches")));

Applied to u-boot-arm/master, thanks!

Amicalement,
-- 
Albert.