user/sven/linux.git/include/linux/io-pgtable.h, branch v5.19.9

iommu/io-pgtable-arm-v7s: Add a quirk to allow pgtable PA up to 35bit

2022-08-25T09:45:48Z

[ Upstream commit bfdd231374181254742c5e2faef0bef2d30c0ee4 ] Single memory zone feature will remove ZONE_DMA32 and ZONE_DMA and cause pgtable PA size larger than 32bit. Since Mediatek IOMMU hardware support at most 35bit PA in pgtable, so add a quirk to allow the PA of pgtables support up to bit35. Signed-off-by: Ning Li Signed-off-by: Yunfei Wang Reviewed-by: Robin Murphy Acked-by: Will Deacon Link: https://lore.kernel.org/r/20220630092927.24925-2-yf.wang@mediatek.com Signed-off-by: Joerg Roedel Signed-off-by: Sasha Levin

Merge branches 'apple/dart', 'arm/smmu', 'iommu/fixes', 'x86/amd', 'x86/vt-d' and 'core' into next

2021-08-20T15:14:35Z

iommu/io-pgtable: Remove non-strict quirk

2021-08-18T11:25:32Z

IO_PGTABLE_QUIRK_NON_STRICT was never a very comfortable fit, since it's not a quirk of the pagetable format itself. Now that we have a more appropriate way to convey non-strict unmaps, though, this last of the non-quirk quirks can also go, and with the flush queue code also now enforcing its own ordering we can have a lovely cleanup all round. Signed-off-by: Robin Murphy Link: https://lore.kernel.org/r/155b5c621cd8936472e273a8b07a182f62c6c20d.1628682049.git.robin.murphy@arm.com Signed-off-by: Joerg Roedel

iommu/io-pgtable: Add DART pagetable format

2021-08-12T11:15:02Z

Apple's DART iommu uses a pagetable format that shares some similarities with the ones already implemented by io-pgtable.c. Add a new format variant to support the required differences so that we don't have to duplicate the pagetable handling code. Reviewed-by: Alexander Graf Reviewed-by: Alyssa Rosenzweig Reviewed-by: Robin Murphy Signed-off-by: Sven Peter Link: https://lore.kernel.org/r/20210803121651.61594-2-sven@svenpeter.dev Signed-off-by: Joerg Roedel

iommu/io-pgtable: Introduce map_pages() as a page table op

2021-07-26T10:37:07Z

Mapping memory into io-pgtables follows the same semantics that unmapping memory used to follow (i.e. a buffer will be mapped one page block per call to the io-pgtable code). This means that it can be optimized in the same way that unmapping memory was, so add a map_pages() callback to the io-pgtable ops structure, so that a range of pages of the same size can be mapped within the same call. Signed-off-by: Isaac J. Manjarres Suggested-by: Will Deacon Signed-off-by: Georgi Djakov Link: https://lore.kernel.org/r/1623850736-389584-4-git-send-email-quic_c_gdjako@quicinc.com Signed-off-by: Joerg Roedel

iommu/io-pgtable: Introduce unmap_pages() as a page table op

2021-07-26T10:37:06Z

The io-pgtable code expects to operate on a single block or granule of memory that is supported by the IOMMU hardware when unmapping memory. This means that when a large buffer that consists of multiple such blocks is unmapped, the io-pgtable code will walk the page tables to the correct level to unmap each block, even for blocks that are virtually contiguous and at the same level, which can incur an overhead in performance. Introduce the unmap_pages() page table op to express to the io-pgtable code that it should unmap a number of blocks of the same size, instead of a single block. Doing so allows multiple blocks to be unmapped in one call to the io-pgtable code, reducing the number of page table walks, and indirect calls. Signed-off-by: Isaac J. Manjarres Suggested-by: Will Deacon Signed-off-by: Will Deacon Signed-off-by: Georgi Djakov Link: https://lore.kernel.org/r/1623850736-389584-2-git-send-email-quic_c_gdjako@quicinc.com Signed-off-by: Joerg Roedel

iommu: remove DOMAIN_ATTR_IO_PGTABLE_CFG

2021-04-07T08:56:53Z

Use an explicit set_pgtable_quirks method instead that just passes the actual quirk bitmask instead. Signed-off-by: Christoph Hellwig Acked-by: Will Deacon Acked-by: Li Yang Link: https://lore.kernel.org/r/20210401155256.298656-20-hch@lst.de Signed-off-by: Joerg Roedel

Merge branches 'arm/renesas', 'arm/smmu', 'x86/amd', 'x86/vt-d' and 'core' into next

2021-02-12T14:27:17Z

iommu/io-pgtable-arm-v7s: Extend PA34 for MediaTek

2021-02-01T11:31:17Z

MediaTek extend the bit5 in lvl1 and lvl2 descriptor as PA34. Signed-off-by: Yong Wu Acked-by: Will Deacon Reviewed-by: Robin Murphy Reviewed-by: Tomasz Figa Link: https://lore.kernel.org/r/20210111111914.22211-11-yong.wu@mediatek.com Signed-off-by: Will Deacon

iommu/io-pgtable: Remove TLBI_ON_MAP quirk

2021-01-28T21:05:11Z

IO_PGTABLE_QUIRK_TLBI_ON_MAP is now fully superseded by the core API's iotlb_sync_map callback. Signed-off-by: Robin Murphy Link: https://lore.kernel.org/r/5abb80bba3a7c371d5ffb7e59c05586deddb9a91.1611764372.git.robin.murphy@arm.com [will: Remove unused 'iop' local variable from arm_v7s_map()] Signed-off-by: Will Deacon