From: Christoph Hellwig <hch@lst.de>
To: iommu@lists.linux-foundation.org
Cc: x86@kernel.org, Anshuman Khandual <anshuman.khandual@arm.com>,
Tom Lendacky <thomas.lendacky@amd.com>,
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
Stefano Stabellini <sstabellini@kernel.org>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>,
Juergen Gross <jgross@suse.com>, Joerg Roedel <joro@8bytes.org>,
David Woodhouse <dwmw2@infradead.org>,
Lu Baolu <baolu.lu@linux.intel.com>,
Robin Murphy <robin.murphy@arm.com>,
linux-arm-kernel@lists.infradead.org,
xen-devel@lists.xenproject.org, linux-ia64@vger.kernel.org,
linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org,
linux-hyperv@vger.kernel.org, tboot-devel@lists.sourceforge.net,
linux-pci@vger.kernel.org
Subject: cleanup swiotlb initialization v8
Date: Mon, 4 Apr 2022 07:05:44 +0200 [thread overview]
Message-ID: <20220404050559.132378-1-hch@lst.de> (raw)
Hi all,
this series tries to clean up the swiotlb initialization, including
that of swiotlb-xen. To get there is also removes the x86 iommu table
infrastructure that massively obsfucates the initialization path.
Git tree:
git://git.infradead.org/users/hch/misc.git swiotlb-init-cleanup
Gitweb:
http://git.infradead.org/users/hch/misc.git/shortlog/refs/heads/swiotlb-init-cleanup
Changes since v7:
- rebased to Linux 5.18-rc1
- better document the lower bound swiotlb size for xen-swiotlb
- improve the nslabs calculation for the retry case in
swiotlb_init_remap and swiotlb_init_late
Changes since v6:
- use IO_TLB_MIN_SLABS instead of open coding the constant
- call the remap callback later in swiotlb_init_late
- set SWIOTLB_ANY for xen/x86
Changes since v5:
- split a patch into three
- fix setting x86_swiotlb_enable for Xen
- fix a comment about forced bounce buffering for guest memory
encryption
- remove the xen_initial_domain check from
xen_create_contiguous_region
Changes since v3:
- fix a compilation issue on some powerpc configfs
- fix and cleanup how forced bounce buffering is enabled for
guest memory encryption
Changes since v2:
- make ppc_swiotlb_flags actually work again
- also force enable swiotlb for guest encrypted memory to cater
to hyperv which doesn't set the host encrypted memory flag
Changes since v1:
- skip IOMMU initialization on Xen PV kernels
- various small whitespace / typo fixes
Diffstat:
arch/ia64/include/asm/iommu_table.h | 7 -
arch/x86/include/asm/iommu_table.h | 102 -------------------
arch/x86/include/asm/swiotlb.h | 30 -----
arch/x86/kernel/pci-iommu_table.c | 77 --------------
arch/x86/kernel/pci-swiotlb.c | 77 --------------
arch/x86/xen/pci-swiotlb-xen.c | 96 ------------------
b/arch/arm/mm/init.c | 6 -
b/arch/arm/xen/mm.c | 26 ++--
b/arch/arm64/mm/init.c | 6 -
b/arch/ia64/mm/init.c | 4
b/arch/mips/cavium-octeon/dma-octeon.c | 15 --
b/arch/mips/loongson64/dma.c | 2
b/arch/mips/pci/pci-octeon.c | 2
b/arch/mips/sibyte/common/dma.c | 2
b/arch/powerpc/include/asm/svm.h | 4
b/arch/powerpc/include/asm/swiotlb.h | 1
b/arch/powerpc/kernel/dma-swiotlb.c | 1
b/arch/powerpc/mm/mem.c | 6 -
b/arch/powerpc/platforms/pseries/setup.c | 3
b/arch/powerpc/platforms/pseries/svm.c | 26 ----
b/arch/riscv/mm/init.c | 8 -
b/arch/s390/mm/init.c | 3
b/arch/x86/include/asm/dma-mapping.h | 12 --
b/arch/x86/include/asm/gart.h | 5
b/arch/x86/include/asm/iommu.h | 8 +
b/arch/x86/include/asm/xen/page.h | 5
b/arch/x86/include/asm/xen/swiotlb-xen.h | 2
b/arch/x86/kernel/Makefile | 2
b/arch/x86/kernel/amd_gart_64.c | 5
b/arch/x86/kernel/aperture_64.c | 14 --
b/arch/x86/kernel/cpu/mshyperv.c | 8 -
b/arch/x86/kernel/pci-dma.c | 114 +++++++++++++++++----
b/arch/x86/kernel/tboot.c | 1
b/arch/x86/kernel/vmlinux.lds.S | 12 --
b/arch/x86/mm/mem_encrypt_amd.c | 3
b/arch/x86/pci/sta2x11-fixup.c | 2
b/arch/x86/xen/Makefile | 2
b/drivers/iommu/amd/init.c | 6 -
b/drivers/iommu/amd/iommu.c | 5
b/drivers/iommu/intel/dmar.c | 6 -
b/drivers/xen/swiotlb-xen.c | 132 -------------------------
b/include/linux/dmar.h | 6 -
b/include/linux/swiotlb.h | 22 ++--
b/include/trace/events/swiotlb.h | 29 +----
b/include/xen/arm/page.h | 1
b/include/xen/swiotlb-xen.h | 8 +
b/kernel/dma/direct.h | 2
b/kernel/dma/swiotlb.c | 163 ++++++++++++++-----------------
48 files changed, 252 insertions(+), 827 deletions(-)
next reply other threads:[~2022-04-04 5:06 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-04 5:05 Christoph Hellwig [this message]
2022-04-04 5:05 ` [PATCH 01/15] dma-direct: use is_swiotlb_active in dma_direct_map_page Christoph Hellwig
2022-04-04 5:05 ` [PATCH 02/15] swiotlb: make swiotlb_exit a no-op if SWIOTLB_FORCE is set Christoph Hellwig
2022-04-04 5:05 ` [PATCH 03/15] swiotlb: simplify swiotlb_max_segment Christoph Hellwig
2022-04-04 5:05 ` [PATCH 04/15] swiotlb: rename swiotlb_late_init_with_default_size Christoph Hellwig
2022-04-04 5:05 ` [PATCH 05/15] arm/xen: don't check for xen_initial_domain() in xen_create_contiguous_region Christoph Hellwig
2022-04-04 5:05 ` [PATCH 06/15] MIPS/octeon: use swiotlb_init instead of open coding it Christoph Hellwig
2022-04-04 5:05 ` [PATCH 07/15] x86: remove the IOMMU table infrastructure Christoph Hellwig
2022-04-07 0:20 ` Konrad Rzeszutek Wilk
2022-04-04 5:05 ` [PATCH 08/15] x86: centralize setting SWIOTLB_FORCE when guest memory encryption is enabled Christoph Hellwig
2022-04-04 5:05 ` [PATCH 09/15] swiotlb: make the swiotlb_init interface more useful Christoph Hellwig
2022-04-04 17:00 ` Michael Kelley (LINUX)
2022-06-01 17:25 ` Nathan Chancellor
2022-06-01 17:34 ` Christoph Hellwig
[not found] ` <YpemDuzdoaO3rijX@Ryzen-9-3900X.>
2022-06-01 17:57 ` Christoph Hellwig
2022-06-01 18:11 ` Nathan Chancellor
2022-06-01 18:21 ` Christoph Hellwig
2022-06-01 18:40 ` Nathan Chancellor
2022-04-04 5:05 ` [PATCH 10/15] swiotlb: add a SWIOTLB_ANY flag to lift the low memory restriction Christoph Hellwig
2022-04-07 0:25 ` Konrad Rzeszutek Wilk
2022-04-12 6:21 ` Christoph Hellwig
2022-04-04 5:05 ` [PATCH 11/15] swiotlb: pass a gfp_mask argument to swiotlb_init_late Christoph Hellwig
2022-04-04 5:05 ` [PATCH 12/15] swiotlb: provide swiotlb_init variants that remap the buffer Christoph Hellwig
2022-04-04 7:09 ` Dongli Zhang
2022-04-04 5:05 ` [PATCH 13/15] swiotlb: merge swiotlb-xen initialization into swiotlb Christoph Hellwig
2022-04-04 5:05 ` [PATCH 14/15] swiotlb: remove swiotlb_init_with_tbl and swiotlb_init_late_with_tbl Christoph Hellwig
2022-04-04 5:05 ` [PATCH 15/15] x86: remove cruft from <asm/dma-mapping.h> Christoph Hellwig
[not found] ` <67c1784af6f24f3e871ddfb1478e821c@FR3P281MB0843.DEUP281.PROD.OUTLOOK.COM>
2022-04-04 6:19 ` [PATCH 12/15] swiotlb: provide swiotlb_init variants that remap the buffer Alan Robinson
2022-04-05 20:06 ` cleanup swiotlb initialization v8 Boris Ostrovsky
2022-04-07 0:31 ` Konrad Rzeszutek Wilk
2022-04-13 6:20 ` Christoph Hellwig
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