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| author | Christoph Hellwig <hch@lst.de> | 2021-04-01 17:52:41 +0200 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2021-04-07 10:56:52 +0200 |
| commit | ba58d1216e2b2d2320b50591b767f50b13c623a8 (patch) | |
| tree | e807c30e7ba0e3e6ae327e30198ef51871f4d358 /drivers/iommu/fsl_pamu_domain.h | |
| parent | c8224508074e7d13fc31e8ca3d24e4f159983cb3 (diff) | |
| download | linux-ba58d1216e2b2d2320b50591b767f50b13c623a8.tar.gz | |
iommu/fsl_pamu: remove support for multiple windows
The only domains allocated forces use of a single window. Remove all the code related to multiple window support, as well as the need for qman_portal to force a single window. Remove the now unused DOMAIN_ATTR_WINDOWS iommu_attr. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Will Deacon <will@kernel.org> Acked-by: Li Yang <leoyang.li@nxp.com> Link: https://lore.kernel.org/r/20210401155256.298656-6-hch@lst.de Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/fsl_pamu_domain.h')
| -rw-r--r-- | drivers/iommu/fsl_pamu_domain.h | 16 |
1 files changed, 2 insertions, 14 deletions
diff --git a/drivers/iommu/fsl_pamu_domain.h b/drivers/iommu/fsl_pamu_domain.h index 53d359d66fe5..d3523ee9999d 100644 --- a/drivers/iommu/fsl_pamu_domain.h +++ b/drivers/iommu/fsl_pamu_domain.h @@ -18,22 +18,10 @@ struct dma_window { struct fsl_dma_domain { /* - * Number of windows assocaited with this domain. - * During domain initialization, it is set to the - * the maximum number of subwindows allowed for a LIODN. - * Minimum value for this is 1 indicating a single PAMU - * window, without any sub windows. Value can be set/ - * queried by set_attr/get_attr API for DOMAIN_ATTR_WINDOWS. - * Value can only be set once the geometry has been configured. - */ - u32 win_cnt; - /* * win_arr contains information of the configured - * windows for a domain. This is allocated only - * when the number of windows for the domain are - * set. + * windows for a domain. */ - struct dma_window *win_arr; + struct dma_window win_arr[1]; /* list of devices associated with the domain */ struct list_head devices; /* dma_domain states: |