Re: [PATCH kernel v4 0/4] powerpc/ioda2: Yet another attempt to allow DMA masks between 32 and 59
Argh. This was meant for the linuxppc list, will repost, please ignore this. On 12/07/2019 19:29, Alexey Kardashevskiy wrote: This is an attempt to allow DMA masks between 32..59 which are not large enough to use either a PHB3 bypass mode or a sketchy bypass. Depending on the max order, up to 40 is usually available. This is based on sha1 a2b6f26c264e Christophe Leroy "powerpc/module64: Use symbolic instructions names.". Please comment. Thanks. Alexey Kardashevskiy (4): powerpc/powernv/ioda: Fix race in TCE level allocation powerpc/iommu: Allow bypass-only for DMA powerpc/powernv/ioda2: Allocate TCE table levels on demand for default DMA window powerpc/powernv/ioda2: Create bigger default window with 64k IOMMU pages arch/powerpc/include/asm/iommu.h | 8 +- arch/powerpc/platforms/powernv/pci.h | 2 +- arch/powerpc/kernel/dma-iommu.c | 11 ++- arch/powerpc/kernel/iommu.c | 74 +-- arch/powerpc/platforms/powernv/pci-ioda-tce.c | 38 ++ arch/powerpc/platforms/powernv/pci-ioda.c | 40 -- 6 files changed, 121 insertions(+), 52 deletions(-) -- Alexey
[PATCH kernel v4 0/4] powerpc/ioda2: Yet another attempt to allow DMA masks between 32 and 59
This is an attempt to allow DMA masks between 32..59 which are not large enough to use either a PHB3 bypass mode or a sketchy bypass. Depending on the max order, up to 40 is usually available. This is based on sha1 a2b6f26c264e Christophe Leroy "powerpc/module64: Use symbolic instructions names.". Please comment. Thanks. Alexey Kardashevskiy (4): powerpc/powernv/ioda: Fix race in TCE level allocation powerpc/iommu: Allow bypass-only for DMA powerpc/powernv/ioda2: Allocate TCE table levels on demand for default DMA window powerpc/powernv/ioda2: Create bigger default window with 64k IOMMU pages arch/powerpc/include/asm/iommu.h | 8 +- arch/powerpc/platforms/powernv/pci.h | 2 +- arch/powerpc/kernel/dma-iommu.c | 11 ++- arch/powerpc/kernel/iommu.c | 74 +-- arch/powerpc/platforms/powernv/pci-ioda-tce.c | 38 ++ arch/powerpc/platforms/powernv/pci-ioda.c | 40 -- 6 files changed, 121 insertions(+), 52 deletions(-) -- 2.17.1
