diff options
Diffstat (limited to 'drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c')
-rw-r--r-- | drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 45 |
1 files changed, 18 insertions, 27 deletions
diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c index 6dc6d8b6b368..627a3ed5ee8f 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -1558,6 +1558,7 @@ static irqreturn_t arm_smmu_evtq_thread(int irq, void *dev) dev_info(smmu->dev, "\t0x%016llx\n", (unsigned long long)evt[i]); + cond_resched(); } /* @@ -2841,17 +2842,9 @@ static int arm_smmu_dev_disable_feature(struct device *dev, static struct iommu_ops arm_smmu_ops = { .capable = arm_smmu_capable, .domain_alloc = arm_smmu_domain_alloc, - .domain_free = arm_smmu_domain_free, - .attach_dev = arm_smmu_attach_dev, - .map_pages = arm_smmu_map_pages, - .unmap_pages = arm_smmu_unmap_pages, - .flush_iotlb_all = arm_smmu_flush_iotlb_all, - .iotlb_sync = arm_smmu_iotlb_sync, - .iova_to_phys = arm_smmu_iova_to_phys, .probe_device = arm_smmu_probe_device, .release_device = arm_smmu_release_device, .device_group = arm_smmu_device_group, - .enable_nesting = arm_smmu_enable_nesting, .of_xlate = arm_smmu_of_xlate, .get_resv_regions = arm_smmu_get_resv_regions, .put_resv_regions = generic_iommu_put_resv_regions, @@ -2865,6 +2858,16 @@ static struct iommu_ops arm_smmu_ops = { .page_response = arm_smmu_page_response, .pgsize_bitmap = -1UL, /* Restricted during device attach */ .owner = THIS_MODULE, + .default_domain_ops = &(const struct iommu_domain_ops) { + .attach_dev = arm_smmu_attach_dev, + .map_pages = arm_smmu_map_pages, + .unmap_pages = arm_smmu_unmap_pages, + .flush_iotlb_all = arm_smmu_flush_iotlb_all, + .iotlb_sync = arm_smmu_iotlb_sync, + .iova_to_phys = arm_smmu_iova_to_phys, + .enable_nesting = arm_smmu_enable_nesting, + .free = arm_smmu_domain_free, + } }; /* Probing and initialisation functions */ @@ -2911,32 +2914,20 @@ static int arm_smmu_init_one_queue(struct arm_smmu_device *smmu, return 0; } -static void arm_smmu_cmdq_free_bitmap(void *data) -{ - unsigned long *bitmap = data; - bitmap_free(bitmap); -} - static int arm_smmu_cmdq_init(struct arm_smmu_device *smmu) { - int ret = 0; struct arm_smmu_cmdq *cmdq = &smmu->cmdq; unsigned int nents = 1 << cmdq->q.llq.max_n_shift; - atomic_long_t *bitmap; atomic_set(&cmdq->owner_prod, 0); atomic_set(&cmdq->lock, 0); - bitmap = (atomic_long_t *)bitmap_zalloc(nents, GFP_KERNEL); - if (!bitmap) { - dev_err(smmu->dev, "failed to allocate cmdq bitmap\n"); - ret = -ENOMEM; - } else { - cmdq->valid_map = bitmap; - devm_add_action(smmu->dev, arm_smmu_cmdq_free_bitmap, bitmap); - } + cmdq->valid_map = (atomic_long_t *)devm_bitmap_zalloc(smmu->dev, nents, + GFP_KERNEL); + if (!cmdq->valid_map) + return -ENOMEM; - return ret; + return 0; } static int arm_smmu_init_queues(struct arm_smmu_device *smmu) @@ -2981,10 +2972,10 @@ static int arm_smmu_init_l1_strtab(struct arm_smmu_device *smmu) { unsigned int i; struct arm_smmu_strtab_cfg *cfg = &smmu->strtab_cfg; - size_t size = sizeof(*cfg->l1_desc) * cfg->num_l1_ents; void *strtab = smmu->strtab_cfg.strtab; - cfg->l1_desc = devm_kzalloc(smmu->dev, size, GFP_KERNEL); + cfg->l1_desc = devm_kcalloc(smmu->dev, cfg->num_l1_ents, + sizeof(*cfg->l1_desc), GFP_KERNEL); if (!cfg->l1_desc) return -ENOMEM; |