From: Alexey Kardashevskiy <aik@ozlabs.ru>
To: linuxppc-dev@lists.ozlabs.org
Cc: Alexey Kardashevskiy <aik@ozlabs.ru>,
Russell Currey <ruscur@russell.cc>,
linux-kernel@vger.kernel.org
Subject: [PATCH kernel] powerpc/powernv/ioda2: Add 256M IOMMU page size to the default POWER8 case
Date: Mon, 2 Jul 2018 17:42:05 +1000 [thread overview]
Message-ID: <20180702074205.12837-1-aik@ozlabs.ru> (raw)
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
next reply other threads:[~2018-07-02 7:42 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-02 7:42 Alexey Kardashevskiy [this message]
2018-07-12 5:12 ` [PATCH kernel] powerpc/powernv/ioda2: Add 256M IOMMU page size to the default POWER8 case Alexey Kardashevskiy
2018-07-12 7:21 ` Russell Currey
2018-07-19 6:07 ` [kernel] " Michael Ellerman
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