lkml.org 
[lkml]   [2021]   [Jun]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH v11 09/12] swiotlb: Add restricted DMA alloc/free support
On Wed, Jun 16, 2021 at 12:59 PM Christoph Hellwig <hch@lst.de> wrote:
>
> On Wed, Jun 16, 2021 at 12:04:16PM +0800, Claire Chang wrote:
> > Just noticed that after propagating swiotlb_force setting into
> > io_tlb_default_mem->force, the memory allocation behavior for
> > swiotlb_force will change (i.e. always skipping arch_dma_alloc and
> > dma_direct_alloc_from_pool).
>
> Yes, I think we need to split a "use_for_alloc" flag from the force flag.

How about splitting is_dev_swiotlb_force into is_swiotlb_force_bounce
(io_tlb_mem->force_bounce) and is_swiotlb_force_alloc
(io_tlb_mem->force_alloc)?

\
 
 \ /
  Last update: 2021-06-16 07:18    [W:0.052 / U:0.184 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site