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SubjectRe: [PATCH 00/20] iommu/amd: Use generic IOVA allocator
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On 2016年07月08日 19:44, Joerg Roedel wrote:
> Hi,
>
> here is a patch-set to make the AMD IOMMU driver use the
> generic IOVA allocator, which is already used in the Intel
> VT-d driver and a few other places.
>
> The main reason for the conversion is to make the driver
> benefit from the recent scalability improvements to the IOVA
> code. Some of these improvements happened in the Intel VT-d
> driver, these are not re-used but, for now, re-implemented.
>
> This leaves more room for merging things together into
> common code for the future.
>
> The allocator that was previously used will be removed with
> these patches.
>
> Please review.

Joerg,

Currently, those patches can not work at my eCarrizo board.
When I merged your patches, boot failed, and no any info print to me.
I set iommu=pt, it also does not work; set iommu=soft, boot ok.

When I removed those patches, kernel boot ok.

This eCarrizo board uart doesnot work, so I can not get useful
information from kernel by uart console, I also set 'text' in boot
option, but still cannot print any log.


Vincent.

>
> Thanks,
>
> Joerg
>
> Joerg Roedel (20):
> iommu: Add apply_dm_region call-back to iommu-ops
> iommu/amd: Select IOMMU_IOVA for AMD IOMMU
> iommu/amd: Allocate iova_domain for dma_ops_domain
> iommu/amd: Create a list of reserved iova addresses
> iommu/amd: Implement apply_dm_region call-back
> iommu/amd: Pass gfp-flags to iommu_map_page()
> iommu/amd: Remove special mapping code for dma_ops path
> iommu/amd: Make use of the generic IOVA allocator
> iommu/amd: Remove other remains of old address allocator
> iommu/amd: Remove align-parameter from __map_single()
> iommu/amd: Set up data structures for flush queue
> iommu/amd: Allow NULL pointer parameter for domain_flush_complete()
> iommu/amd: Implement flush queue
> iommu/amd: Implement timeout to flush unmap queues
> iommu/amd: Introduce dir2prot() helper
> iommu/amd: Optimize map_sg and unmap_sg
> iommu/amd: Use dev_data->domain in get_domain()
> iommu/amd: Handle IOMMU_DOMAIN_DMA in ops->domain_free call-back
> iommu/amd: Flush iova queue before releasing dma_ops_domain
> iommu/amd: Use container_of to get dma_ops_domain
>
> drivers/iommu/Kconfig | 1 +
> drivers/iommu/amd_iommu.c | 976 ++++++++++++++++------------------------
> drivers/iommu/amd_iommu_types.h | 1 -
> drivers/iommu/iommu.c | 3 +
> include/linux/iommu.h | 3 +
> 5 files changed, 387 insertions(+), 597 deletions(-)
>

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