Now that we are using the dma-iommu api we have a lot of unused code.
This patch removes all that unused code.
Signed-off-by: Tom Murphy
---
drivers/iommu/amd_iommu.c | 209 --
1 file changed, 209 deletions(-)
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 218faf3a6d9c..02b351834a3b 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -116,18 +116,6 @@ struct kmem_cache *amd_iommu_irq_cache;
static void update_domain(struct protection_domain *domain);
static int protection_domain_init(struct protection_domain *domain);
static void detach_device(struct device *dev);
-static void iova_domain_flush_tlb(struct iova_domain *iovad);
-
-/*
- * Data container for a dma_ops specific protection domain
- */
-struct dma_ops_domain {
- /* generic protection domain information */
- struct protection_domain domain;
-
- /* IOVA RB-Tree */
- struct iova_domain iovad;
-};
static struct iova_domain reserved_iova_ranges;
static struct lock_class_key reserved_rbtree_key;
@@ -201,12 +189,6 @@ static struct protection_domain *to_pdomain(struct
iommu_domain *dom)
return container_of(dom, struct protection_domain, domain);
}
-static struct dma_ops_domain* to_dma_ops_domain(struct protection_domain
*domain)
-{
- BUG_ON(domain->flags != PD_DMA_OPS_MASK);
- return container_of(domain, struct dma_ops_domain, domain);
-}
-
static struct iommu_dev_data *alloc_dev_data(u16 devid)
{
struct iommu_dev_data *dev_data;
@@ -1280,12 +1262,6 @@ static void domain_flush_pages(struct protection_domain
*domain,
__domain_flush_pages(domain, address, size, 0);
}
-/* Flush the whole IO/TLB for a given protection domain */
-static void domain_flush_tlb(struct protection_domain *domain)
-{
- __domain_flush_pages(domain, 0, CMD_INV_IOMMU_ALL_PAGES_ADDRESS, 0);
-}
-
/* Flush the whole IO/TLB for a given protection domain - including PDE */
static void domain_flush_tlb_pde(struct protection_domain *domain)
{
@@ -1689,43 +1665,6 @@ static unsigned long iommu_unmap_page(struct
protection_domain *dom,
return unmapped;
}
-/
- *
- * The next functions belong to the address allocator for the dma_ops
- * interface functions.
- *
- /
-
-
-static unsigned long dma_ops_alloc_iova(struct device *dev,
- struct dma_ops_domain *dma_dom,
- unsigned int pages, u64 dma_mask)
-{
- unsigned long pfn = 0;
-
- pages = __roundup_pow_of_two(pages);
-
- if (dma_mask > DMA_BIT_MASK(32))
- pfn = alloc_iova_fast(_dom->iovad, pages,
- IOVA_PFN(DMA_BIT_MASK(32)), false);
-
- if (!pfn)
- pfn = alloc_iova_fast(_dom->iovad, pages,
- IOVA_PFN(dma_mask), true);
-
- return (pfn << PAGE_SHIFT);
-}
-
-static void dma_ops_free_iova(struct dma_ops_domain *dma_dom,
- unsigned long address,
- unsigned int pages)
-{
- pages = __roundup_pow_of_two(pages);
- address >>= PAGE_SHIFT;
-
- free_iova_fast(_dom->iovad, address, pages);
-}
-
/
*
* The next functions belong to the domain allocation. A domain is
@@ -1827,21 +1766,6 @@ static void free_gcr3_table(struct protection_domain
*domain)
free_page((unsigned long)domain->gcr3_tbl);
}
-static void dma_ops_domain_flush_tlb(struct dma_ops_domain *dom)
-{
- domain_flush_tlb(>domain);
- domain_flush_complete(>domain);
-}
-
-static void iova_domain_flush_tlb(struct iova_domain *iovad)
-{
- struct dma_ops_domain *dom;
-
- dom = container_of(iovad, struct dma_ops_domain, iovad);
-
- dma_ops_domain_flush_tlb(dom);
-}
-
/*
* Free a domain, only used if something went wrong in the
* allocation path and we need to free an already allocated page table
@@ -2437,100 +2361,6 @@ static int dir2prot(enum dma_data_direction direction)
return 0;
}
-/*
- * This function contains common code for mapping of a physically
- * contiguous memory region into DMA address space. It is used by all
- * mapping functions provided with this IOMMU driver.
- * Must be called with the domain lock held.
- */
-static dma_addr_t __map_single(struct device *dev,
- struct dma_ops_domain *dma_dom,
- phys_addr_t paddr,
- size_t size,
- enum dma_data_direction direction,
- u64 dma_mask)
-{
- dma_addr_t offset = paddr & ~PAGE_MASK;
- dma_addr_t address, start, ret;
- unsigned int
