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* Re: linux-next: Tree for Nov 22 (riscv: DMA_GLOBAL_POOL)
       [not found] <20231122145257.6f668afa@canb.auug.org.au>
@ 2023-11-22 22:37 ` Randy Dunlap
  2023-11-30 16:35   ` Conor Dooley
  0 siblings, 1 reply; 3+ messages in thread
From: Randy Dunlap @ 2023-11-22 22:37 UTC (permalink / raw)
  To: Stephen Rothwell, Linux Next Mailing List
  Cc: Linux Kernel Mailing List, linux-riscv

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On 11/21/23 19:52, Stephen Rothwell wrote:
> Hi all,
> 
> Changes since 20231121:
> 

on riscv 32-bit:

WARNING: unmet direct dependencies detected for DMA_GLOBAL_POOL
  Depends on [n]: !ARCH_HAS_DMA_SET_UNCACHED [=n] && !DMA_DIRECT_REMAP [=y]
  Selected by [y]:
  - ARCH_R9A07G043 [=y] && SOC_RENESAS [=y] && RISCV [=y] && NONPORTABLE [=y] && RISCV_ALTERNATIVE [=y] && !RISCV_ISA_ZICBOM [=n] && RISCV_SBI [=y]

WARNING: unmet direct dependencies detected for DMA_GLOBAL_POOL
  Depends on [n]: !ARCH_HAS_DMA_SET_UNCACHED [=n] && !DMA_DIRECT_REMAP [=y]
  Selected by [y]:
  - ARCH_R9A07G043 [=y] && SOC_RENESAS [=y] && RISCV [=y] && NONPORTABLE [=y] && RISCV_ALTERNATIVE [=y] && !RISCV_ISA_ZICBOM [=n] && RISCV_SBI [=y]


Full randconfig file is attached.

-- 
~Randy

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^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: linux-next: Tree for Nov 22 (riscv: DMA_GLOBAL_POOL)
  2023-11-22 22:37 ` linux-next: Tree for Nov 22 (riscv: DMA_GLOBAL_POOL) Randy Dunlap
@ 2023-11-30 16:35   ` Conor Dooley
  2023-11-30 17:04     ` Randy Dunlap
  0 siblings, 1 reply; 3+ messages in thread
From: Conor Dooley @ 2023-11-30 16:35 UTC (permalink / raw)
  To: Randy Dunlap
  Cc: Stephen Rothwell, Linux Next Mailing List,
	Linux Kernel Mailing List, linux-riscv, Geert Uytterhoeven,
	Lad, Prabhakar


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On Wed, Nov 22, 2023 at 02:37:43PM -0800, Randy Dunlap wrote:
> 
> 
> On 11/21/23 19:52, Stephen Rothwell wrote:
> > Hi all,
> > 
> > Changes since 20231121:
> > 
> 
> on riscv 32-bit:
> 
> WARNING: unmet direct dependencies detected for DMA_GLOBAL_POOL
>   Depends on [n]: !ARCH_HAS_DMA_SET_UNCACHED [=n] && !DMA_DIRECT_REMAP [=y]
>   Selected by [y]:
>   - ARCH_R9A07G043 [=y] && SOC_RENESAS [=y] && RISCV [=y] && NONPORTABLE [=y] && RISCV_ALTERNATIVE [=y] && !RISCV_ISA_ZICBOM [=n] && RISCV_SBI [=y]
> 
> WARNING: unmet direct dependencies detected for DMA_GLOBAL_POOL
>   Depends on [n]: !ARCH_HAS_DMA_SET_UNCACHED [=n] && !DMA_DIRECT_REMAP [=y]
>   Selected by [y]:
>   - ARCH_R9A07G043 [=y] && SOC_RENESAS [=y] && RISCV [=y] && NONPORTABLE [=y] && RISCV_ALTERNATIVE [=y] && !RISCV_ISA_ZICBOM [=n] && RISCV_SBI [=y]

DMA_DIRECT_REMAP is selected by the T-HEAD CMO erratum.
DMA_GLOBAL_POOL by the Andes CMO erratum.

We could do

diff --git a/drivers/soc/renesas/Kconfig b/drivers/soc/renesas/Kconfig
index 0071864c2111..d8723fdf1e55 100644
--- a/drivers/soc/renesas/Kconfig
+++ b/drivers/soc/renesas/Kconfig
@@ -339,6 +339,7 @@ if RISCV
 
 config ARCH_R9A07G043
 	bool "RISC-V Platform support for RZ/Five"
+	depends on !DMA_DIRECT_REMAP
 	depends on NONPORTABLE
 	depends on RISCV_ALTERNATIVE
 	depends on !RISCV_ISA_ZICBOM


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^ permalink raw reply related	[flat|nested] 3+ messages in thread

* Re: linux-next: Tree for Nov 22 (riscv: DMA_GLOBAL_POOL)
  2023-11-30 16:35   ` Conor Dooley
@ 2023-11-30 17:04     ` Randy Dunlap
  0 siblings, 0 replies; 3+ messages in thread
From: Randy Dunlap @ 2023-11-30 17:04 UTC (permalink / raw)
  To: Conor Dooley
  Cc: Stephen Rothwell, Linux Next Mailing List,
	Linux Kernel Mailing List, linux-riscv, Geert Uytterhoeven,
	Lad, Prabhakar



On 11/30/23 08:35, Conor Dooley wrote:
> On Wed, Nov 22, 2023 at 02:37:43PM -0800, Randy Dunlap wrote:
>>
>>
>> On 11/21/23 19:52, Stephen Rothwell wrote:
>>> Hi all,
>>>
>>> Changes since 20231121:
>>>
>>
>> on riscv 32-bit:
>>
>> WARNING: unmet direct dependencies detected for DMA_GLOBAL_POOL
>>   Depends on [n]: !ARCH_HAS_DMA_SET_UNCACHED [=n] && !DMA_DIRECT_REMAP [=y]
>>   Selected by [y]:
>>   - ARCH_R9A07G043 [=y] && SOC_RENESAS [=y] && RISCV [=y] && NONPORTABLE [=y] && RISCV_ALTERNATIVE [=y] && !RISCV_ISA_ZICBOM [=n] && RISCV_SBI [=y]
>>
>> WARNING: unmet direct dependencies detected for DMA_GLOBAL_POOL
>>   Depends on [n]: !ARCH_HAS_DMA_SET_UNCACHED [=n] && !DMA_DIRECT_REMAP [=y]
>>   Selected by [y]:
>>   - ARCH_R9A07G043 [=y] && SOC_RENESAS [=y] && RISCV [=y] && NONPORTABLE [=y] && RISCV_ALTERNATIVE [=y] && !RISCV_ISA_ZICBOM [=n] && RISCV_SBI [=y]
> 
> DMA_DIRECT_REMAP is selected by the T-HEAD CMO erratum.
> DMA_GLOBAL_POOL by the Andes CMO erratum.
> 
> We could do
> 
> diff --git a/drivers/soc/renesas/Kconfig b/drivers/soc/renesas/Kconfig
> index 0071864c2111..d8723fdf1e55 100644
> --- a/drivers/soc/renesas/Kconfig
> +++ b/drivers/soc/renesas/Kconfig
> @@ -339,6 +339,7 @@ if RISCV
>  
>  config ARCH_R9A07G043
>  	bool "RISC-V Platform support for RZ/Five"
> +	depends on !DMA_DIRECT_REMAP
>  	depends on NONPORTABLE
>  	depends on RISCV_ALTERNATIVE
>  	depends on !RISCV_ISA_ZICBOM

OK, that works for me.

Tested-by: Randy Dunlap <rdunlap@infradead.org> # build-tested

Thanks.

-- 
~Randy

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^ permalink raw reply	[flat|nested] 3+ messages in thread

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     [not found] <20231122145257.6f668afa@canb.auug.org.au>
2023-11-22 22:37 ` linux-next: Tree for Nov 22 (riscv: DMA_GLOBAL_POOL) Randy Dunlap
2023-11-30 16:35   ` Conor Dooley
2023-11-30 17:04     ` Randy Dunlap

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