cleanup swiotlb initialization v2

Christoph Hellwig
2022-02-27T14:30:44Z

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 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 | 23 ++--
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/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 | 109 ++++++++++++++++----
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 +++++++++++++++----------------
47 files changed, 253 insertions(+), 817 deletions(-)