[PATCH 27/44] sparc: remove leon_dma_ops

2017-06-16 Thread Christoph Hellwig
We can just use pci32_dma_ops directly. Signed-off-by: Christoph Hellwig Acked-by: David S. Miller --- arch/sparc/include/asm/dma-mapping.h | 3 +-- arch/sparc/kernel/ioport.c | 5 + 2 files changed, 2 insertions(+), 6 deletions(-) diff --git a/arch/sparc/include/asm/dma-mapping.

Re: [PATCH 27/44] sparc: remove leon_dma_ops

2017-06-16 Thread Christoph Hellwig
On Mon, Jun 12, 2017 at 10:06:26AM +0200, Andreas Larsson wrote: > Yes, it is needed. LEON systems are AMBA bus based. The common case here is > DMA over AMBA buses. Some LEON systems have PCI bridges, but in general > CONFIG_PCI is not a given. Ok, and even for AMBA we use the pci ops, so I'll

Re: [PATCH 27/44] sparc: remove leon_dma_ops

2017-06-12 Thread Andreas Larsson
On 2017-06-08 15:25, Christoph Hellwig wrote: We can just use pci32_dma_ops. Btw, given that leon is 32-bit and appears to be PCI based, do even need the special case for it in get_arch_dma_ops at all? Hi! Yes, it is needed. LEON systems are AMBA bus based. The common case here is DMA over A

Re: [PATCH 27/44] sparc: remove leon_dma_ops

2017-06-08 Thread David Miller
From: Christoph Hellwig Date: Thu, 8 Jun 2017 15:25:52 +0200 > We can just use pci32_dma_ops. > > Btw, given that leon is 32-bit and appears to be PCI based, do even need > the special case for it in get_arch_dma_ops at all? I would need to defer to the LEON developers on that, but they haven'

[PATCH 27/44] sparc: remove leon_dma_ops

2017-06-08 Thread Christoph Hellwig
We can just use pci32_dma_ops. Btw, given that leon is 32-bit and appears to be PCI based, do even need the special case for it in get_arch_dma_ops at all? Signed-off-by: Christoph Hellwig --- arch/sparc/include/asm/dma-mapping.h | 3 +-- arch/sparc/kernel/ioport.c | 5 + 2 files