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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: 5afb146c-b9b7-483e-932e-08dbb45f83ba X-MS-Exchange-CrossTenant-AuthSource: LV2PR12MB5869.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Sep 2023 13:44:12.9661 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: a00zGjIF5Fncb6OOVGrLqIFX2lC5kPQ3efl2rd6C77xFS5H+SfeUCWL3LZvZQ0Qd X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ2PR12MB7848 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230913_064421_568785_84D70922 X-CRM114-Status: GOOD ( 14.65 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org These drivers don't support IOMMU_DOMAIN_DMA, so this commit effectively allows them to support that mode. The prior work to require default_domains makes this safe because every one of these drivers is either compilation incompatible with dma-iommu.c, or already establishing a default_domain. In both cases alloc_domain() will never be called with IOMMU_DOMAIN_DMA for these drivers so it is safe to drop the test. Removing these tests clarifies that the domain allocation path is only about the functionality of a paging domain and has nothing to do with policy of how the paging domain is used for UNMANAGED/DMA/DMA_FQ. Tested-by: Niklas Schnelle Tested-by: Steven Price Tested-by: Marek Szyprowski Tested-by: Nicolin Chen Reviewed-by: Lu Baolu Reviewed-by: Jerry Snitselaar Signed-off-by: Jason Gunthorpe --- drivers/iommu/msm_iommu.c | 7 ++----- drivers/iommu/mtk_iommu_v1.c | 7 ++----- drivers/iommu/omap-iommu.c | 7 ++----- drivers/iommu/s390-iommu.c | 7 ++----- 4 files changed, 8 insertions(+), 20 deletions(-) diff --git a/drivers/iommu/msm_iommu.c b/drivers/iommu/msm_iommu.c index 26ed81cfeee897..a163cee0b7242d 100644 --- a/drivers/iommu/msm_iommu.c +++ b/drivers/iommu/msm_iommu.c @@ -302,13 +302,10 @@ static void __program_context(void __iomem *base, int ctx, SET_M(base, ctx, 1); } -static struct iommu_domain *msm_iommu_domain_alloc(unsigned type) +static struct iommu_domain *msm_iommu_domain_alloc_paging(struct device *dev) { struct msm_priv *priv; - if (type != IOMMU_DOMAIN_UNMANAGED) - return NULL; - priv = kzalloc(sizeof(*priv), GFP_KERNEL); if (!priv) goto fail_nomem; @@ -691,7 +688,7 @@ irqreturn_t msm_iommu_fault_handler(int irq, void *dev_id) static struct iommu_ops msm_iommu_ops = { .identity_domain = &msm_iommu_identity_domain, - .domain_alloc = msm_iommu_domain_alloc, + .domain_alloc_paging = msm_iommu_domain_alloc_paging, .probe_device = msm_iommu_probe_device, .device_group = generic_device_group, .pgsize_bitmap = MSM_IOMMU_PGSIZES, diff --git a/drivers/iommu/mtk_iommu_v1.c b/drivers/iommu/mtk_iommu_v1.c index 7c0c1d50df5f75..67e044c1a7d93b 100644 --- a/drivers/iommu/mtk_iommu_v1.c +++ b/drivers/iommu/mtk_iommu_v1.c @@ -270,13 +270,10 @@ static int mtk_iommu_v1_domain_finalise(struct mtk_iommu_v1_data *data) return 0; } -static struct iommu_domain *mtk_iommu_v1_domain_alloc(unsigned type) +static struct iommu_domain *mtk_iommu_v1_domain_alloc_paging(struct device *dev) { struct mtk_iommu_v1_domain *dom; - if (type != IOMMU_DOMAIN_UNMANAGED) - return NULL; - dom = kzalloc(sizeof(*dom), GFP_KERNEL); if (!dom) return NULL; @@ -585,7 +582,7 @@ static int mtk_iommu_v1_hw_init(const struct mtk_iommu_v1_data *data) static const struct iommu_ops mtk_iommu_v1_ops = { .identity_domain = &mtk_iommu_v1_identity_domain, - .domain_alloc = mtk_iommu_v1_domain_alloc, + .domain_alloc_paging = mtk_iommu_v1_domain_alloc_paging, .probe_device = mtk_iommu_v1_probe_device, .probe_finalize = mtk_iommu_v1_probe_finalize, .release_device = mtk_iommu_v1_release_device, diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c index 34340ef15241bc..fcf99bd195b32e 100644 --- a/drivers/iommu/omap-iommu.c +++ b/drivers/iommu/omap-iommu.c @@ -1580,13 +1580,10 @@ static struct iommu_domain omap_iommu_identity_domain = { .ops = &omap_iommu_identity_ops, }; -static struct iommu_domain *omap_iommu_domain_alloc(unsigned type) +static struct iommu_domain *omap_iommu_domain_alloc_paging(struct device *dev) { struct omap_iommu_domain *omap_domain; - if (type != IOMMU_DOMAIN_UNMANAGED) - return NULL; - omap_domain = kzalloc(sizeof(*omap_domain), GFP_KERNEL); if (!omap_domain) return NULL; @@ -1748,7 +1745,7 @@ static struct iommu_group *omap_iommu_device_group(struct device *dev) static const struct iommu_ops omap_iommu_ops = { .identity_domain = &omap_iommu_identity_domain, - .domain_alloc = omap_iommu_domain_alloc, + .domain_alloc_paging = omap_iommu_domain_alloc_paging, .probe_device = omap_iommu_probe_device, .release_device = omap_iommu_release_device, .device_group = omap_iommu_device_group, diff --git a/drivers/iommu/s390-iommu.c b/drivers/iommu/s390-iommu.c index f0c867c57a5b9b..5695ad71d60e24 100644 --- a/drivers/iommu/s390-iommu.c +++ b/drivers/iommu/s390-iommu.c @@ -39,13 +39,10 @@ static bool s390_iommu_capable(struct device *dev, enum iommu_cap cap) } } -static struct iommu_domain *s390_domain_alloc(unsigned domain_type) +static struct iommu_domain *s390_domain_alloc_paging(struct device *dev) { struct s390_domain *s390_domain; - if (domain_type != IOMMU_DOMAIN_UNMANAGED) - return NULL; - s390_domain = kzalloc(sizeof(*s390_domain), GFP_KERNEL); if (!s390_domain) return NULL; @@ -447,7 +444,7 @@ void zpci_destroy_iommu(struct zpci_dev *zdev) static const struct iommu_ops s390_iommu_ops = { .default_domain = &s390_iommu_platform_domain, .capable = s390_iommu_capable, - .domain_alloc = s390_domain_alloc, + .domain_alloc_paging = s390_domain_alloc_paging, .probe_device = s390_iommu_probe_device, .release_device = s390_iommu_release_device, .device_group = generic_device_group,