On 09.06.2025 22:41, Jason Gunthorpe wrote:
> These drivers just have a constant value for their page size, move it
> into their domain_alloc_paging function before setting up the geometry.
>
> Reviewed-by: Kevin Tian <[email protected]>
> Acked-by: Niklas Schnelle <[email protected]> # for s390-iommu.c
> Signed-off-by: Jason Gunthorpe <[email protected]>
> ---
>   drivers/iommu/exynos-iommu.c   | 3 ++-
Acked-by: Marek Szyprowski <[email protected]> # for exynos-iommu.c
>   drivers/iommu/ipmmu-vmsa.c     | 4 ++--
>   drivers/iommu/mtk_iommu_v1.c   | 3 ++-
>   drivers/iommu/omap-iommu.c     | 3 ++-
>   drivers/iommu/rockchip-iommu.c | 3 ++-
>   drivers/iommu/s390-iommu.c     | 2 +-
>   drivers/iommu/sprd-iommu.c     | 3 ++-
>   drivers/iommu/sun50i-iommu.c   | 3 ++-
>   drivers/iommu/tegra-smmu.c     | 3 ++-
>   9 files changed, 17 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c
> index fcb6a0f7c08275..b62a8f35c3e851 100644
> --- a/drivers/iommu/exynos-iommu.c
> +++ b/drivers/iommu/exynos-iommu.c
> @@ -925,6 +925,8 @@ static struct iommu_domain 
> *exynos_iommu_domain_alloc_paging(struct device *dev)
>       spin_lock_init(&domain->pgtablelock);
>       INIT_LIST_HEAD(&domain->clients);
>   
> +     domain->domain.pgsize_bitmap = SECT_SIZE | LPAGE_SIZE | SPAGE_SIZE;
> +
>       domain->domain.geometry.aperture_start = 0;
>       domain->domain.geometry.aperture_end   = ~0UL;
>       domain->domain.geometry.force_aperture = true;
> @@ -1477,7 +1479,6 @@ static const struct iommu_ops exynos_iommu_ops = {
>       .device_group = generic_device_group,
>       .probe_device = exynos_iommu_probe_device,
>       .release_device = exynos_iommu_release_device,
> -     .pgsize_bitmap = SECT_SIZE | LPAGE_SIZE | SPAGE_SIZE,
>       .of_xlate = exynos_iommu_of_xlate,
>       .default_domain_ops = &(const struct iommu_domain_ops) {
>               .attach_dev     = exynos_iommu_attach_device,
> diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c
> index 90341b24a81155..ffa892f6571406 100644
> --- a/drivers/iommu/ipmmu-vmsa.c
> +++ b/drivers/iommu/ipmmu-vmsa.c
> @@ -430,7 +430,7 @@ static int ipmmu_domain_init_context(struct 
> ipmmu_vmsa_domain *domain)
>        * non-secure mode.
>        */
>       domain->cfg.quirks = IO_PGTABLE_QUIRK_ARM_NS;
> -     domain->cfg.pgsize_bitmap = SZ_1G | SZ_2M | SZ_4K;
> +     domain->cfg.pgsize_bitmap = domain->io_domain.pgsize_bitmap;
>       domain->cfg.ias = 32;
>       domain->cfg.oas = 40;
>       domain->cfg.tlb = &ipmmu_flush_ops;
> @@ -571,6 +571,7 @@ static struct iommu_domain 
> *ipmmu_domain_alloc_paging(struct device *dev)
>               return NULL;
>   
>       mutex_init(&domain->mutex);
> +     domain->io_domain.pgsize_bitmap = SZ_1G | SZ_2M | SZ_4K;
>   
>       return &domain->io_domain;
>   }
> @@ -882,7 +883,6 @@ static const struct iommu_ops ipmmu_ops = {
>        */
>       .device_group = IS_ENABLED(CONFIG_ARM) && !IS_ENABLED(CONFIG_IOMMU_DMA)
>                       ? generic_device_group : generic_single_device_group,
> -     .pgsize_bitmap = SZ_1G | SZ_2M | SZ_4K,
>       .of_xlate = ipmmu_of_xlate,
>       .default_domain_ops = &(const struct iommu_domain_ops) {
>               .attach_dev     = ipmmu_attach_device,
> diff --git a/drivers/iommu/mtk_iommu_v1.c b/drivers/iommu/mtk_iommu_v1.c
> index 66824982e05fbf..496cfe37243ac2 100644
> --- a/drivers/iommu/mtk_iommu_v1.c
> +++ b/drivers/iommu/mtk_iommu_v1.c
> @@ -288,6 +288,8 @@ static struct iommu_domain 
> *mtk_iommu_v1_domain_alloc_paging(struct device *dev)
>       if (!dom)
>               return NULL;
>   
> +     dom->domain.pgsize_bitmap = MT2701_IOMMU_PAGE_SIZE;
> +
>       return &dom->domain;
>   }
>   
> @@ -582,7 +584,6 @@ static const struct iommu_ops mtk_iommu_v1_ops = {
>       .probe_finalize = mtk_iommu_v1_probe_finalize,
>       .release_device = mtk_iommu_v1_release_device,
>       .device_group   = generic_device_group,
> -     .pgsize_bitmap  = MT2701_IOMMU_PAGE_SIZE,
>       .owner          = THIS_MODULE,
>       .default_domain_ops = &(const struct iommu_domain_ops) {
>               .attach_dev     = mtk_iommu_v1_attach_device,
> diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c
> index 3c62337f43c677..21c218976143ef 100644
> --- a/drivers/iommu/omap-iommu.c
> +++ b/drivers/iommu/omap-iommu.c
> @@ -1584,6 +1584,8 @@ static struct iommu_domain 
> *omap_iommu_domain_alloc_paging(struct device *dev)
>   
>       spin_lock_init(&omap_domain->lock);
>   
> +     omap_domain->domain.pgsize_bitmap = OMAP_IOMMU_PGSIZES;
> +
>       omap_domain->domain.geometry.aperture_start = 0;
>       omap_domain->domain.geometry.aperture_end   = (1ULL << 32) - 1;
>       omap_domain->domain.geometry.force_aperture = true;
> @@ -1735,7 +1737,6 @@ static const struct iommu_ops omap_iommu_ops = {
>       .release_device = omap_iommu_release_device,
>       .device_group   = generic_single_device_group,
>       .of_xlate       = omap_iommu_of_xlate,
> -     .pgsize_bitmap  = OMAP_IOMMU_PGSIZES,
>       .default_domain_ops = &(const struct iommu_domain_ops) {
>               .attach_dev     = omap_iommu_attach_dev,
>               .map_pages      = omap_iommu_map,
> diff --git a/drivers/iommu/rockchip-iommu.c b/drivers/iommu/rockchip-iommu.c
> index 22f74ba33a0e38..f4a5ad096343ab 100644
> --- a/drivers/iommu/rockchip-iommu.c
> +++ b/drivers/iommu/rockchip-iommu.c
> @@ -1081,6 +1081,8 @@ static struct iommu_domain 
> *rk_iommu_domain_alloc_paging(struct device *dev)
>       spin_lock_init(&rk_domain->dt_lock);
>       INIT_LIST_HEAD(&rk_domain->iommus);
>   
> +     rk_domain->domain.pgsize_bitmap = RK_IOMMU_PGSIZE_BITMAP;
> +
>       rk_domain->domain.geometry.aperture_start = 0;
>       rk_domain->domain.geometry.aperture_end   = DMA_BIT_MASK(32);
>       rk_domain->domain.geometry.force_aperture = true;
> @@ -1171,7 +1173,6 @@ static const struct iommu_ops rk_iommu_ops = {
>       .probe_device = rk_iommu_probe_device,
>       .release_device = rk_iommu_release_device,
>       .device_group = generic_single_device_group,
> -     .pgsize_bitmap = RK_IOMMU_PGSIZE_BITMAP,
>       .of_xlate = rk_iommu_of_xlate,
>       .default_domain_ops = &(const struct iommu_domain_ops) {
>               .attach_dev     = rk_iommu_attach_device,
> diff --git a/drivers/iommu/s390-iommu.c b/drivers/iommu/s390-iommu.c
> index 433b59f435302b..9c80d61deb2c0b 100644
> --- a/drivers/iommu/s390-iommu.c
> +++ b/drivers/iommu/s390-iommu.c
> @@ -557,6 +557,7 @@ static struct iommu_domain 
> *s390_domain_alloc_paging(struct device *dev)
>       }
>       zdev->end_dma = zdev->start_dma + aperture_size - 1;
>   
> +     s390_domain->domain.pgsize_bitmap = SZ_4K;
>       s390_domain->domain.geometry.force_aperture = true;
>       s390_domain->domain.geometry.aperture_start = 0;
>       s390_domain->domain.geometry.aperture_end = max_tbl_size(s390_domain);
> @@ -1158,7 +1159,6 @@ static struct iommu_domain blocking_domain = {
>       .domain_alloc_paging = s390_domain_alloc_paging, \
>       .probe_device = s390_iommu_probe_device, \
>       .device_group = generic_device_group, \
> -     .pgsize_bitmap = SZ_4K, \
>       .get_resv_regions = s390_iommu_get_resv_regions, \
>       .default_domain_ops = &(const struct iommu_domain_ops) { \
>               .attach_dev     = s390_iommu_attach_device, \
> diff --git a/drivers/iommu/sprd-iommu.c b/drivers/iommu/sprd-iommu.c
> index 941d1f361c8cda..c7ca1d8a0b1530 100644
> --- a/drivers/iommu/sprd-iommu.c
> +++ b/drivers/iommu/sprd-iommu.c
> @@ -143,6 +143,8 @@ static struct iommu_domain 
> *sprd_iommu_domain_alloc_paging(struct device *dev)
>   
>       spin_lock_init(&dom->pgtlock);
>   
> +     dom->domain.pgsize_bitmap = SPRD_IOMMU_PAGE_SIZE;
> +
>       dom->domain.geometry.aperture_start = 0;
>       dom->domain.geometry.aperture_end = SZ_256M - 1;
>       dom->domain.geometry.force_aperture = true;
> @@ -410,7 +412,6 @@ static const struct iommu_ops sprd_iommu_ops = {
>       .probe_device   = sprd_iommu_probe_device,
>       .device_group   = generic_single_device_group,
>       .of_xlate       = sprd_iommu_of_xlate,
> -     .pgsize_bitmap  = SPRD_IOMMU_PAGE_SIZE,
>       .owner          = THIS_MODULE,
>       .default_domain_ops = &(const struct iommu_domain_ops) {
>               .attach_dev     = sprd_iommu_attach_device,
> diff --git a/drivers/iommu/sun50i-iommu.c b/drivers/iommu/sun50i-iommu.c
> index 76c9620af4bba8..de10b569d9a940 100644
> --- a/drivers/iommu/sun50i-iommu.c
> +++ b/drivers/iommu/sun50i-iommu.c
> @@ -697,6 +697,8 @@ sun50i_iommu_domain_alloc_paging(struct device *dev)
>   
>       refcount_set(&sun50i_domain->refcnt, 1);
>   
> +     sun50i_domain->domain.pgsize_bitmap = SZ_4K;
> +
>       sun50i_domain->domain.geometry.aperture_start = 0;
>       sun50i_domain->domain.geometry.aperture_end = DMA_BIT_MASK(32);
>       sun50i_domain->domain.geometry.force_aperture = true;
> @@ -842,7 +844,6 @@ static int sun50i_iommu_of_xlate(struct device *dev,
>   
>   static const struct iommu_ops sun50i_iommu_ops = {
>       .identity_domain = &sun50i_iommu_identity_domain,
> -     .pgsize_bitmap  = SZ_4K,
>       .device_group   = generic_single_device_group,
>       .domain_alloc_paging = sun50i_iommu_domain_alloc_paging,
>       .of_xlate       = sun50i_iommu_of_xlate,
> diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c
> index 61897d50162dd7..fa0913e9346c71 100644
> --- a/drivers/iommu/tegra-smmu.c
> +++ b/drivers/iommu/tegra-smmu.c
> @@ -318,6 +318,8 @@ static struct iommu_domain 
> *tegra_smmu_domain_alloc_paging(struct device *dev)
>   
>       spin_lock_init(&as->lock);
>   
> +     as->domain.pgsize_bitmap = SZ_4K;
> +
>       /* setup aperture */
>       as->domain.geometry.aperture_start = 0;
>       as->domain.geometry.aperture_end = 0xffffffff;
> @@ -1002,7 +1004,6 @@ static const struct iommu_ops tegra_smmu_ops = {
>       .probe_device = tegra_smmu_probe_device,
>       .device_group = tegra_smmu_device_group,
>       .of_xlate = tegra_smmu_of_xlate,
> -     .pgsize_bitmap = SZ_4K,
>       .default_domain_ops = &(const struct iommu_domain_ops) {
>               .attach_dev     = tegra_smmu_attach_dev,
>               .map_pages      = tegra_smmu_map,

Best regards
-- 
Marek Szyprowski, PhD
Samsung R&D Institute Poland


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