* [PATCH kernel] powerpc/powernv/ioda: Finish removing explicit max window size check
@ 2018-01-18 2:51 Alexey Kardashevskiy
2018-01-22 3:34 ` [kernel] " Michael Ellerman
0 siblings, 1 reply; 2+ messages in thread
From: Alexey Kardashevskiy @ 2018-01-18 2:51 UTC (permalink / raw)
To: linuxppc-dev
Cc: Alexey Kardashevskiy, David Gibson, Russell Currey,
Jonas Pfefferle1
9003a2498 removed checn from the DMA window pages allocator, however
the VFIO driver tests limits before doing so by calling
the get_table_size hook which was left behind; this fixes it.
Fixes: 9003a2498 "powerpc/powernv/ioda: Remove explicit max window size check"
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
---
It is properly tested now. Only affected folks for now are DPDK guys
with machines with non-power-of-two physical RAM amount.
---
arch/powerpc/platforms/powernv/pci-ioda.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index b9146d5..1069f9c 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -2572,7 +2572,6 @@ static unsigned long pnv_pci_ioda2_get_table_size(__u32 page_shift,
unsigned long direct_table_size;
if (!levels || (levels > POWERNV_IOMMU_MAX_LEVELS) ||
- (window_size > memory_hotplug_max()) ||
!is_power_of_2(window_size))
return 0;
--
2.11.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [kernel] powerpc/powernv/ioda: Finish removing explicit max window size check
2018-01-18 2:51 [PATCH kernel] powerpc/powernv/ioda: Finish removing explicit max window size check Alexey Kardashevskiy
@ 2018-01-22 3:34 ` Michael Ellerman
0 siblings, 0 replies; 2+ messages in thread
From: Michael Ellerman @ 2018-01-22 3:34 UTC (permalink / raw)
To: Alexey Kardashevskiy, linuxppc-dev
Cc: Alexey Kardashevskiy, Jonas Pfefferle1, David Gibson
On Thu, 2018-01-18 at 02:51:03 UTC, Alexey Kardashevskiy wrote:
> 9003a2498 removed checn from the DMA window pages allocator, however
> the VFIO driver tests limits before doing so by calling
> the get_table_size hook which was left behind; this fixes it.
>
> Fixes: 9003a2498 "powerpc/powernv/ioda: Remove explicit max window size check"
> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/ae677ff02f2ddb0980953efd4afed1
cheers
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