* [PATCH kernel] powerpc/powernv/ioda2: Add 256M IOMMU page size to the default POWER8 case
@ 2018-07-02 7:42 Alexey Kardashevskiy
2018-07-12 5:12 ` Alexey Kardashevskiy
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: Alexey Kardashevskiy @ 2018-07-02 7:42 UTC (permalink / raw)
To: linuxppc-dev; +Cc: Alexey Kardashevskiy, Russell Currey, linux-kernel
The sketchy bypass uses 256M pages so add this page size as well.
This should cause no behavioral change but will be used later.
Fixes: 477afd6ea6 "powerpc/ioda: Use ibm,supported-tce-sizes for IOMMU page size mask"
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
---
arch/powerpc/platforms/powernv/pci-ioda.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index 5bd0eb6..557c11d 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -2925,7 +2925,7 @@ static unsigned long pnv_ioda_parse_tce_sizes(struct pnv_phb *phb)
/* Add 16M for POWER8 by default */
if (cpu_has_feature(CPU_FTR_ARCH_207S) &&
!cpu_has_feature(CPU_FTR_ARCH_300))
- mask |= SZ_16M;
+ mask |= SZ_16M | SZ_256M;
return mask;
}
--
2.11.0
^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [PATCH kernel] powerpc/powernv/ioda2: Add 256M IOMMU page size to the default POWER8 case
2018-07-02 7:42 [PATCH kernel] powerpc/powernv/ioda2: Add 256M IOMMU page size to the default POWER8 case Alexey Kardashevskiy
@ 2018-07-12 5:12 ` Alexey Kardashevskiy
2018-07-12 7:21 ` Russell Currey
2018-07-19 6:07 ` [kernel] " Michael Ellerman
2 siblings, 0 replies; 4+ messages in thread
From: Alexey Kardashevskiy @ 2018-07-12 5:12 UTC (permalink / raw)
To: linuxppc-dev; +Cc: Russell Currey, linux-kernel
On Mon, 2 Jul 2018 17:42:05 +1000
Alexey Kardashevskiy <aik@ozlabs.ru> wrote:
> The sketchy bypass uses 256M pages so add this page size as well.
>
> This should cause no behavioral change but will be used later.
>
> Fixes: 477afd6ea6 "powerpc/ioda: Use ibm,supported-tce-sizes for IOMMU page size mask"
> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
> ---
> arch/powerpc/platforms/powernv/pci-ioda.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
> index 5bd0eb6..557c11d 100644
> --- a/arch/powerpc/platforms/powernv/pci-ioda.c
> +++ b/arch/powerpc/platforms/powernv/pci-ioda.c
> @@ -2925,7 +2925,7 @@ static unsigned long pnv_ioda_parse_tce_sizes(struct pnv_phb *phb)
> /* Add 16M for POWER8 by default */
> if (cpu_has_feature(CPU_FTR_ARCH_207S) &&
> !cpu_has_feature(CPU_FTR_ARCH_300))
> - mask |= SZ_16M;
> + mask |= SZ_16M | SZ_256M;
Ping?
> return mask;
> }
>
> --
> 2.11.0
>
--
Alexey
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH kernel] powerpc/powernv/ioda2: Add 256M IOMMU page size to the default POWER8 case
2018-07-02 7:42 [PATCH kernel] powerpc/powernv/ioda2: Add 256M IOMMU page size to the default POWER8 case Alexey Kardashevskiy
2018-07-12 5:12 ` Alexey Kardashevskiy
@ 2018-07-12 7:21 ` Russell Currey
2018-07-19 6:07 ` [kernel] " Michael Ellerman
2 siblings, 0 replies; 4+ messages in thread
From: Russell Currey @ 2018-07-12 7:21 UTC (permalink / raw)
To: Alexey Kardashevskiy, linuxppc-dev; +Cc: linux-kernel
On Mon, 2018-07-02 at 17:42 +1000, Alexey Kardashevskiy wrote:
> The sketchy bypass uses 256M pages so add this page size as well.
>
> This should cause no behavioral change but will be used later.
>
> Fixes: 477afd6ea6 "powerpc/ioda: Use ibm,supported-tce-sizes for
> IOMMU page size mask"
> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Russell Currey <ruscur@russell.cc>
> ---
> arch/powerpc/platforms/powernv/pci-ioda.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c
> b/arch/powerpc/platforms/powernv/pci-ioda.c
> index 5bd0eb6..557c11d 100644
> --- a/arch/powerpc/platforms/powernv/pci-ioda.c
> +++ b/arch/powerpc/platforms/powernv/pci-ioda.c
> @@ -2925,7 +2925,7 @@ static unsigned long
> pnv_ioda_parse_tce_sizes(struct pnv_phb *phb)
> /* Add 16M for POWER8 by default */
> if (cpu_has_feature(CPU_FTR_ARCH_207S) &&
> !cpu_has_feature(CPU_FTR_ARCH_300))
> - mask |= SZ_16M;
> + mask |= SZ_16M | SZ_256M;
> return mask;
> }
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [kernel] powerpc/powernv/ioda2: Add 256M IOMMU page size to the default POWER8 case
2018-07-02 7:42 [PATCH kernel] powerpc/powernv/ioda2: Add 256M IOMMU page size to the default POWER8 case Alexey Kardashevskiy
2018-07-12 5:12 ` Alexey Kardashevskiy
2018-07-12 7:21 ` Russell Currey
@ 2018-07-19 6:07 ` Michael Ellerman
2 siblings, 0 replies; 4+ messages in thread
From: Michael Ellerman @ 2018-07-19 6:07 UTC (permalink / raw)
To: Alexey Kardashevskiy, linuxppc-dev; +Cc: Alexey Kardashevskiy, linux-kernel
On Mon, 2018-07-02 at 07:42:05 UTC, Alexey Kardashevskiy wrote:
> The sketchy bypass uses 256M pages so add this page size as well.
>
> This should cause no behavioral change but will be used later.
>
> Fixes: 477afd6ea6 "powerpc/ioda: Use ibm,supported-tce-sizes for IOMMU page size mask"
> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/00c376fdd7ed6cc083da3a3c51a63a
cheers
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2018-07-19 6:07 UTC | newest]
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2018-07-02 7:42 [PATCH kernel] powerpc/powernv/ioda2: Add 256M IOMMU page size to the default POWER8 case Alexey Kardashevskiy
2018-07-12 5:12 ` Alexey Kardashevskiy
2018-07-12 7:21 ` Russell Currey
2018-07-19 6:07 ` [kernel] " Michael Ellerman
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