Re: cleanup swiotlb initialization v8
On Mon, Apr 04, 2022 at 07:05:44AM +0200, Christoph Hellwig wrote: > 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 I've updated the git tree above with the commit message nitpicks and received reviews. I plan to pull the patches into the dma-mapping tree after -rc3 is released, so if any involved maintainer is not happy with the result, please speak up now.
Re: cleanup swiotlb initialization v8
On Mon, Apr 04, 2022 at 07:05:44AM +0200, Christoph Hellwig wrote: > 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 Hey Christoph, Feel free to tack on Reviewed-by: Konrad Rzeszutek Wilk on them if you would like. Thank you for doing the spring cleaning of this codebase!
Re: cleanup swiotlb initialization v8
On 4/4/22 1:05 AM, Christoph Hellwig wrote: 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 Tested-by: Boris Ostrovsky
cleanup swiotlb initialization v8
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(-)
