Re: [PATCH] swiotlb: set IO TLB segment size via cmdline | linuxppc-dev | Ratatoskr

[PATCH] swiotlb: set IO TLB segment size via cmdline · Roman Skakun <hidden> · 2021-09-14
Re: [PATCH] swiotlb: set IO TLB segment size via cmdline · Jan Beulich <hidden> · 2021-09-14
Re: [PATCH] swiotlb: set IO TLB segment size via cmdline · Christoph Hellwig <hch@lst.de> · 2021-09-14
Re: [PATCH] swiotlb: set IO TLB segment size via cmdline · Stefano Stabellini <sstabellini@kernel.org> · 2021-09-15
Re: [PATCH] swiotlb: set IO TLB segment size via cmdline · Roman Skakun <hidden> · 2021-09-16
Re: [PATCH] swiotlb: set IO TLB segment size via cmdline · Roman Skakun <hidden> · 2021-09-15
Re: [PATCH] swiotlb: set IO TLB segment size via cmdline · Jan Beulich <hidden> · 2021-09-15
Re: [PATCH] swiotlb: set IO TLB segment size via cmdline · Christoph Hellwig <hch@lst.de> · 2021-09-15
Re: [PATCH] swiotlb: set IO TLB segment size via cmdline · Roman Skakun <hidden> · 2021-09-17
Re: [PATCH] swiotlb: set IO TLB segment size via cmdline · Robin Murphy <robin.murphy@arm.com> · 2021-09-17
Re: [PATCH] swiotlb: set IO TLB segment size via cmdline · Roman Skakun <hidden> · 2021-09-21
Re: [PATCH] swiotlb: set IO TLB segment size via cmdline · Jan Beulich <hidden> · 2021-09-17
Re: [PATCH] swiotlb: set IO TLB segment size via cmdline · Roman Skakun <hidden> · 2021-09-17

Re: [PATCH] swiotlb: set IO TLB segment size via cmdline

From: Christoph Hellwig <hch@lst.de>
Date: 2021-09-15 13:53:28
Also in: linux-doc, linux-iommu, linux-mips, lkml, xen-devel

On Wed, Sep 15, 2021 at 03:49:52PM +0200, Jan Beulich wrote:

But the question remains: Why does the framebuffer need to be mapped
in a single giant chunk?

More importantly: if you use dynamic dma mappings for your framebuffer
you're doing something wrong.