Re: [PATCH v3 1/7] swiotlb: make io_tlb_default_mem local to swiotlb.c

[PATCH v3 0/7] Allow dynamic allocation of software IO TLB bounce buffers · Petr Tesarik <hidden> · 2023-06-27
[PATCH v3 1/7] swiotlb: make io_tlb_default_mem local to swiotlb.c · Petr Tesarik <hidden> · 2023-06-27
Re: [PATCH v3 1/7] swiotlb: make io_tlb_default_mem local to swiotlb.c · Greg Kroah-Hartman <gregkh@linuxfoundation.org> · 2023-06-27
Re: [PATCH v3 1/7] swiotlb: make io_tlb_default_mem local to swiotlb.c · Robin Murphy <robin.murphy@arm.com> · 2023-06-27
Re: [PATCH v3 1/7] swiotlb: make io_tlb_default_mem local to swiotlb.c · Petr Tesařík <hidden> · 2023-06-27
Re: [PATCH v3 1/7] swiotlb: make io_tlb_default_mem local to swiotlb.c · Petr Tesařík <hidden> · 2023-06-27
Re: [PATCH v3 1/7] swiotlb: make io_tlb_default_mem local to swiotlb.c · Christoph Hellwig <hch@lst.de> · 2023-06-27
Re: [PATCH v3 1/7] swiotlb: make io_tlb_default_mem local to swiotlb.c · Petr Tesařík <hidden> · 2023-06-27
[PATCH v3 2/7] swiotlb: add documentation and rename swiotlb_do_find_slots() · Petr Tesarik <hidden> · 2023-06-27
[PATCH v3 3/7] swiotlb: separate memory pool data from other allocator data · Petr Tesarik <hidden> · 2023-06-27
[PATCH v3 4/7] swiotlb: if swiotlb is full, fall back to a transient memory pool · Petr Tesarik <hidden> · 2023-06-27
RE: [PATCH v3 4/7] swiotlb: if swiotlb is full, fall back to a transient memory pool · Michael Kelley (LINUX) <hidden> · 2023-07-06
Re: [PATCH v3 4/7] swiotlb: if swiotlb is full, fall back to a transient memory pool · Greg Kroah-Hartman <gregkh@linuxfoundation.org> · 2023-07-06
RE: [PATCH v3 4/7] swiotlb: if swiotlb is full, fall back to a transient memory pool · Michael Kelley (LINUX) <hidden> · 2023-07-06
Re: [PATCH v3 4/7] swiotlb: if swiotlb is full, fall back to a transient memory pool · Greg Kroah-Hartman <gregkh@linuxfoundation.org> · 2023-07-07
Re: [PATCH v3 4/7] swiotlb: if swiotlb is full, fall back to a transient memory pool · Petr Tesařík <hidden> · 2023-07-07
RE: [PATCH v3 4/7] swiotlb: if swiotlb is full, fall back to a transient memory pool · Michael Kelley (LINUX) <hidden> · 2023-07-08
Re: [PATCH v3 4/7] swiotlb: if swiotlb is full, fall back to a transient memory pool · Petr Tesařík <hidden> · 2023-07-10
RE: [PATCH v3 4/7] swiotlb: if swiotlb is full, fall back to a transient memory pool · Michael Kelley (LINUX) <hidden> · 2023-07-11
[PATCH v3 5/7] swiotlb: determine potential physical address limit · Petr Tesarik <hidden> · 2023-06-27
[PATCH v3 6/7] swiotlb: allocate a new memory pool when existing pools are full · Petr Tesarik <hidden> · 2023-06-27
[PATCH v3 7/7] swiotlb: search the software IO TLB only if a device makes use of it · Petr Tesarik <hidden> · 2023-06-27

From: Christoph Hellwig <hch@lst.de>
Date: 2023-06-27 15:48:13
Also in: linux-iommu, linux-mips, lkml, xen-devel

On Tue, Jun 27, 2023 at 01:30:06PM +0200, Petr Tesařík wrote:

Xen is the only user of an "is SWIOTLB present" interface. IIUC Xen
needs bounce buffers for the PCI frontend driver, but if there is no
other reason to have a SWIOTLB, the system does not set up one at boot.

Please take a look at my "unexport swiotlb_active v2" series that
unfortunately missed the 6.5 merge window waiting for reviews.

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