On Thursday, October 15, 2015 at 05:04:38 PM, Dinh Nguyen wrote:

Hi!

> >>> diff --git a/arch/arm/include/asm/pl310.h
> >>> b/arch/arm/include/asm/pl310.h index 18b90b7..7a11405 100644
> >>> --- a/arch/arm/include/asm/pl310.h
> >>> +++ b/arch/arm/include/asm/pl310.h
> >>> @@ -17,6 +17,8 @@
> >>> 
> >>>  #define L2X0_CTRL_EN                             1
> >>>  
> >>>  #define PL310_SHARED_ATT_OVERRIDE_ENABLE         (1 << 22)
> >>> 
> >>> +#define PL310_AUX_CTRL_DATA_PREFETCH_MASK        (1 << 28)
> >>> +#define PL310_AUX_CTRL_INST_PREFETCH_MASK        (1 << 29)
> >> 
> >> These would be
> >> 
> >> arch/arm/include/asm/hardware/cache-l2x0.h:#define
> >> L310_PREFETCH_CTRL_DATA_PREFETCH     BIT(28)
> >> arch/arm/include/asm/hardware/cache-l2x0.h:#define
> >> L310_PREFETCH_CTRL_INSTR_PREFETCH    BIT(29)
> >> 
> >> ...in kernel. So maybe staying with L310_ prefix makes sense?
> >> Otherwise it looks ok.
> > 
> > Why is it L... in one and PL... in the other one ? What does the "PL"
> > prefix stand for anyway ?
> 
> As Pavel pointed out, it should be L310_x as this is how the Linux
> kernel is defining it. It's my mistake in the previous patch to change
> the define to PL310.
> 
> I'll respin this patch with L310_PREFETCH_CTRL_DATA_PREFETCH and
> L310_PREFETCH_CTRL_INSTR_PREFETCH.

Well that didn't answer either of my questions ;-)

Best regards,
Marek Vasut
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