diff options
Diffstat (limited to 'drivers/iommu/amd_iommu.c')
| -rw-r--r-- | drivers/iommu/amd_iommu.c | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 119148552aa0..de9f028be79e 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -489,70 +489,6 @@ static void iommu_uninit_device(struct device *dev) */ } -#ifdef CONFIG_AMD_IOMMU_STATS - -/* - * Initialization code for statistics collection - */ - -DECLARE_STATS_COUNTER(compl_wait); -DECLARE_STATS_COUNTER(cnt_map_single); -DECLARE_STATS_COUNTER(cnt_unmap_single); -DECLARE_STATS_COUNTER(cnt_map_sg); -DECLARE_STATS_COUNTER(cnt_unmap_sg); -DECLARE_STATS_COUNTER(cnt_alloc_coherent); -DECLARE_STATS_COUNTER(cnt_free_coherent); -DECLARE_STATS_COUNTER(cross_page); -DECLARE_STATS_COUNTER(domain_flush_single); -DECLARE_STATS_COUNTER(domain_flush_all); -DECLARE_STATS_COUNTER(alloced_io_mem); -DECLARE_STATS_COUNTER(total_map_requests); -DECLARE_STATS_COUNTER(complete_ppr); -DECLARE_STATS_COUNTER(invalidate_iotlb); -DECLARE_STATS_COUNTER(invalidate_iotlb_all); -DECLARE_STATS_COUNTER(pri_requests); - -static struct dentry *stats_dir; -static struct dentry *de_fflush; - -static void amd_iommu_stats_add(struct __iommu_counter *cnt) -{ - if (stats_dir == NULL) - return; - - cnt->dent = debugfs_create_u64(cnt->name, 0444, stats_dir, - &cnt->value); -} - -static void amd_iommu_stats_init(void) -{ - stats_dir = debugfs_create_dir("amd-iommu", NULL); - if (stats_dir == NULL) - return; - - de_fflush = debugfs_create_bool("fullflush", 0444, stats_dir, - &amd_iommu_unmap_flush); - - amd_iommu_stats_add(&compl_wait); - amd_iommu_stats_add(&cnt_map_single); - amd_iommu_stats_add(&cnt_unmap_single); - amd_iommu_stats_add(&cnt_map_sg); - amd_iommu_stats_add(&cnt_unmap_sg); - amd_iommu_stats_add(&cnt_alloc_coherent); - amd_iommu_stats_add(&cnt_free_coherent); - amd_iommu_stats_add(&cross_page); - amd_iommu_stats_add(&domain_flush_single); - amd_iommu_stats_add(&domain_flush_all); - amd_iommu_stats_add(&alloced_io_mem); - amd_iommu_stats_add(&total_map_requests); - amd_iommu_stats_add(&complete_ppr); - amd_iommu_stats_add(&invalidate_iotlb); - amd_iommu_stats_add(&invalidate_iotlb_all); - amd_iommu_stats_add(&pri_requests); -} - -#endif - /**************************************************************************** * * Interrupt handling functions @@ -675,8 +611,6 @@ static void iommu_handle_ppr_entry(struct amd_iommu *iommu, u64 *raw) { struct amd_iommu_fault fault; - INC_STATS_COUNTER(pri_requests); - if (PPR_REQ_TYPE(raw[0]) != PPR_REQ_FAULT) { pr_err_ratelimited("AMD-Vi: Unknown PPR request received\n"); return; @@ -2641,11 +2575,6 @@ static dma_addr_t __map_single(struct device *dev, pages = iommu_num_pages(paddr, size, PAGE_SIZE); paddr &= PAGE_MASK; - INC_STATS_COUNTER(total_map_requests); - - if (pages > 1) - INC_STATS_COUNTER(cross_page); - if (align) align_mask = (1UL << get_order(size)) - 1; @@ -2666,8 +2595,6 @@ static dma_addr_t __map_single(struct device *dev, } address += offset; - ADD_STATS_COUNTER(alloced_io_mem, size); - if (unlikely(amd_iommu_np_cache)) { domain_flush_pages(&dma_dom->domain, address, size); domain_flush_complete(&dma_dom->domain); @@ -2715,8 +2642,6 @@ static void __unmap_single(struct dma_ops_domain *dma_dom, start += PAGE_SIZE; } - SUB_STATS_COUNTER(alloced_io_mem, size); - dma_ops_free_addresses(dma_dom, dma_addr, pages); } @@ -2732,8 +2657,6 @@ static dma_addr_t map_page(struct device *dev, struct page *page, struct protection_domain *domain; u64 dma_mask; - INC_STATS_COUNTER(cnt_map_single); - domain = get_domain(dev); if (PTR_ERR(domain) == -EINVAL) return (dma_addr_t)paddr; @@ -2754,8 +2677,6 @@ static void unmap_page(struct device *dev, dma_addr_t dma_addr, size_t size, { struct protection_domain *domain; - INC_STATS_COUNTER(cnt_unmap_single); - domain = get_domain(dev); if (IS_ERR(domain)) return; @@ -2778,8 +2699,6 @@ static int map_sg(struct device *dev, struct scatterlist *sglist, int mapped_elems = 0; u64 dma_mask; - INC_STATS_COUNTER(cnt_map_sg); - domain = get_domain(dev); if (IS_ERR(domain)) return 0; @@ -2825,8 +2744,6 @@ static void unmap_sg(struct device *dev, struct scatterlist *sglist, struct scatterlist *s; int i; - INC_STATS_COUNTER(cnt_unmap_sg); - domain = get_domain(dev); if (IS_ERR(domain)) return; @@ -2849,8 +2766,6 @@ static void *alloc_coherent(struct device *dev, size_t size, struct protection_domain *domain; struct page *page; - INC_STATS_COUNTER(cnt_alloc_coherent); - domain = get_domain(dev); if (PTR_ERR(domain) == -EINVAL) { page = alloc_pages(flag, get_order(size)); @@ -2904,8 +2819,6 @@ static void free_coherent(struct device *dev, size_t size, struct protection_domain *domain; struct page *page; - INC_STATS_COUNTER(cnt_free_coherent); - page = virt_to_page(virt_addr); size = PAGE_ALIGN(size); @@ -2997,8 +2910,6 @@ int __init amd_iommu_init_dma_ops(void) if (!swiotlb) dma_ops = &nommu_dma_ops; - amd_iommu_stats_init(); - if (amd_iommu_unmap_flush) pr_info("AMD-Vi: IO/TLB flush on unmap enabled\n"); else @@ -3489,8 +3400,6 @@ out: static int __amd_iommu_flush_page(struct protection_domain *domain, int pasid, u64 address) { - INC_STATS_COUNTER(invalidate_iotlb); - return __flush_pasid(domain, pasid, address, false); } @@ -3511,8 +3420,6 @@ EXPORT_SYMBOL(amd_iommu_flush_page); static int __amd_iommu_flush_tlb(struct protection_domain *domain, int pasid) { - INC_STATS_COUNTER(invalidate_iotlb_all); - return __flush_pasid(domain, pasid, CMD_INV_IOMMU_ALL_PAGES_ADDRESS, true); } @@ -3632,8 +3539,6 @@ int amd_iommu_complete_ppr(struct pci_dev *pdev, int pasid, struct amd_iommu *iommu; struct iommu_cmd cmd; - INC_STATS_COUNTER(complete_ppr); - dev_data = get_dev_data(&pdev->dev); iommu = amd_iommu_rlookup_table[dev_data->devid]; |