[edk2-devel] [PATCH v6 2/5] MdePkg: Rename Cache Management Function To Clarify Fence Based Op

Laszlo Ersek lersek at redhat.com
Tue Oct 24 12:34:03 UTC 2023


On 10/21/23 19:33, Dhaval Sharma wrote:
> There are different ways to manage cache on RISC-V Processors.
> One way is to use fence instruction. Another way is to use CPU
> specific cache management operation instructions ratified as
> per RISC-V ISA specifications to be introduced in future
> patches. Current method is fence instruction based, rename the
> function accordingly to add that clarity.
> 
> Cc: Michael D Kinney <michael.d.kinney at intel.com>
> Cc: Liming Gao <gaoliming at byosoft.com.cn>
> Cc: Zhiguang Liu <zhiguang.liu at intel.com>
> Cc: Sunil V L <sunilvl at ventanamicro.com>
> Cc: Daniel Schaefer <git at danielschaefer.me>
> Cc: Laszlo Ersek <lersek at redhat.com>
> 
> Signed-off-by: Dhaval Sharma <dhaval at rivosinc.com>
> ---
> 
> Notes:
>     V6:
>     - As part of restructuring, adding cache instruction differentiation
>       in function naming
> 
>  MdePkg/Include/Library/BaseLib.h                    | 4 ++--
>  MdePkg/Library/BaseCacheMaintenanceLib/RiscVCache.c | 4 ++--
>  MdePkg/Library/BaseLib/RiscV64/FlushCache.S         | 8 ++++----
>  3 files changed, 8 insertions(+), 8 deletions(-)
> 
> diff --git a/MdePkg/Include/Library/BaseLib.h b/MdePkg/Include/Library/BaseLib.h
> index 7142bbfa42f2..d4b56a9601da 100644
> --- a/MdePkg/Include/Library/BaseLib.h
> +++ b/MdePkg/Include/Library/BaseLib.h
> @@ -212,7 +212,7 @@ RiscVClearPendingTimerInterrupt (
>  **/
>  VOID
>  EFIAPI
> -RiscVInvalidateInstCacheAsm (
> +RiscVInvalidateInstCacheAsmFence (
>    VOID
>    );
>  
> @@ -222,7 +222,7 @@ RiscVInvalidateInstCacheAsm (
>  **/
>  VOID
>  EFIAPI
> -RiscVInvalidateDataCacheAsm (
> +RiscVInvalidateDataCacheAsmFence (
>    VOID
>    );
>  
> diff --git a/MdePkg/Library/BaseCacheMaintenanceLib/RiscVCache.c b/MdePkg/Library/BaseCacheMaintenanceLib/RiscVCache.c
> index d5efcf49a4bf..4eb18edb9aa7 100644
> --- a/MdePkg/Library/BaseCacheMaintenanceLib/RiscVCache.c
> +++ b/MdePkg/Library/BaseCacheMaintenanceLib/RiscVCache.c
> @@ -21,7 +21,7 @@ InvalidateInstructionCache (
>    VOID
>    )
>  {
> -  RiscVInvalidateInstCacheAsm ();
> +  RiscVInvalidateInstCacheAsmFence ();
>  }
>  
>  /**
> @@ -193,7 +193,7 @@ InvalidateDataCache (
>    VOID
>    )
>  {
> -  RiscVInvalidateDataCacheAsm ();
> +  RiscVInvalidateDataCacheAsmFence ();
>  }
>  
>  /**
> diff --git a/MdePkg/Library/BaseLib/RiscV64/FlushCache.S b/MdePkg/Library/BaseLib/RiscV64/FlushCache.S
> index 7c10fdd268af..e0eea0b5fb25 100644
> --- a/MdePkg/Library/BaseLib/RiscV64/FlushCache.S
> +++ b/MdePkg/Library/BaseLib/RiscV64/FlushCache.S
> @@ -9,13 +9,13 @@
>  //------------------------------------------------------------------------------
>  
>  .align 3
> -ASM_GLOBAL ASM_PFX(RiscVInvalidateInstCacheAsm)
> -ASM_GLOBAL ASM_PFX(RiscVInvalidateDataCacheAsm)
> +ASM_GLOBAL ASM_PFX(RiscVInvalidateInstCacheAsmFence)
> +ASM_GLOBAL ASM_PFX(RiscVInvalidateDataCacheAsmFence)
>  
> -ASM_PFX(RiscVInvalidateInstCacheAsm):
> +ASM_PFX(RiscVInvalidateInstCacheAsmFence):
>      fence.i
>      ret
>  
> -ASM_PFX(RiscVInvalidateDataCacheAsm):
> +ASM_PFX(RiscVInvalidateDataCacheAsmFence):
>      fence
>      ret

Reviewed-by: Laszlo Ersek <lersek at redhat.com>



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