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Date: Thu, 28 Jan 2010 12:38:02 +0100
From: Joerg Roedel <joerg.roedel@....com>
To: Avi Kivity <avi@...hat.com>, Marcelo Tosatti <mtosatti@...hat.com>,
David Woodhouse <dwmw2@...radead.org>
CC: kvm@...r.kernel.org, iommu@...ts.linux-foundation.org,
linux-kernel@...r.kernel.org, Joerg Roedel <joerg.roedel@....com>
Subject: [PATCH 11/11] iommu-api: Remove iommu_{un}map_range functions
These functions are not longer used and can be removed
savely. There functionality is now provided by the
iommu_{un}map functions which are also capable of multiple
page sizes.
Signed-off-by: Joerg Roedel <joerg.roedel@....com>
---
arch/x86/kernel/amd_iommu.c | 48 -------------------------------------------
drivers/base/iommu.c | 26 +---------------------
include/linux/iommu.h | 20 -----------------
3 files changed, 2 insertions(+), 92 deletions(-)
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index 0e068c9..d8da998 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -2506,52 +2506,6 @@ static int amd_iommu_attach_device(struct iommu_domain *dom,
return ret;
}
-static int amd_iommu_map_range(struct iommu_domain *dom,
- unsigned long iova, phys_addr_t paddr,
- size_t size, int iommu_prot)
-{
- struct protection_domain *domain = dom->priv;
- unsigned long i, npages = iommu_num_pages(paddr, size, PAGE_SIZE);
- int prot = 0;
- int ret;
-
- if (iommu_prot & IOMMU_READ)
- prot |= IOMMU_PROT_IR;
- if (iommu_prot & IOMMU_WRITE)
- prot |= IOMMU_PROT_IW;
-
- iova &= PAGE_MASK;
- paddr &= PAGE_MASK;
-
- for (i = 0; i < npages; ++i) {
- ret = iommu_map_page(domain, iova, paddr, prot, PAGE_SIZE);
- if (ret)
- return ret;
-
- iova += PAGE_SIZE;
- paddr += PAGE_SIZE;
- }
-
- return 0;
-}
-
-static void amd_iommu_unmap_range(struct iommu_domain *dom,
- unsigned long iova, size_t size)
-{
-
- struct protection_domain *domain = dom->priv;
- unsigned long i, npages = iommu_num_pages(iova, size, PAGE_SIZE);
-
- iova &= PAGE_MASK;
-
- for (i = 0; i < npages; ++i) {
- iommu_unmap_page(domain, iova, PAGE_SIZE);
- iova += PAGE_SIZE;
- }
-
- iommu_flush_tlb_pde(domain);
-}
-
static int amd_iommu_map(struct iommu_domain *dom, unsigned long iova,
phys_addr_t paddr, int gfp_order, int iommu_prot)
{
@@ -2616,8 +2570,6 @@ static struct iommu_ops amd_iommu_ops = {
.detach_dev = amd_iommu_detach_device,
.map = amd_iommu_map,
.unmap = amd_iommu_unmap,
- .map_range = amd_iommu_map_range,
- .unmap_range = amd_iommu_unmap_range,
.iova_to_phys = amd_iommu_iova_to_phys,
.domain_has_cap = amd_iommu_domain_has_cap,
};
diff --git a/drivers/base/iommu.c b/drivers/base/iommu.c
index 55d37e4..6e6b6a1 100644
--- a/drivers/base/iommu.c
+++ b/drivers/base/iommu.c
@@ -80,20 +80,6 @@ void iommu_detach_device(struct iommu_domain *domain, struct device *dev)
}
EXPORT_SYMBOL_GPL(iommu_detach_device);
-int iommu_map_range(struct iommu_domain *domain, unsigned long iova,
- phys_addr_t paddr, size_t size, int prot)
-{
- return iommu_ops->map_range(domain, iova, paddr, size, prot);
-}
-EXPORT_SYMBOL_GPL(iommu_map_range);
-
-void iommu_unmap_range(struct iommu_domain *domain, unsigned long iova,
- size_t size)
-{
- iommu_ops->unmap_range(domain, iova, size);
-}
-EXPORT_SYMBOL_GPL(iommu_unmap_range);
-
phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain,
unsigned long iova)
{
@@ -119,10 +105,7 @@ int iommu_map(struct iommu_domain *domain, unsigned long iova,
BUG_ON((iova | paddr) & invalid_mask);
- if (iommu_ops->map)
- return iommu_ops->map(domain, iova, paddr, gfp_order, prot);
-
- return iommu_ops->map_range(domain, iova, paddr, size, prot);
+ return iommu_ops->map(domain, iova, paddr, gfp_order, prot);
}
EXPORT_SYMBOL_GPL(iommu_map);
@@ -136,11 +119,6 @@ int iommu_unmap(struct iommu_domain *domain, unsigned long iova, int gfp_order)
BUG_ON(iova & invalid_mask);
- if (iommu_ops->unmap)
- return iommu_ops->unmap(domain, iova, gfp_order);
-
- iommu_ops->unmap_range(domain, iova, size);
-
- return gfp_order;
+ return iommu_ops->unmap(domain, iova, gfp_order);
}
EXPORT_SYMBOL_GPL(iommu_unmap);
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 5a7a3d8..be22ad8 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -40,10 +40,6 @@ struct iommu_ops {
phys_addr_t paddr, int gfp_order, int prot);
int (*unmap)(struct iommu_domain *domain, unsigned long iova,
int gfp_order);
- int (*map_range)(struct iommu_domain *domain, unsigned long iova,
- phys_addr_t paddr, size_t size, int prot);
- void (*unmap_range)(struct iommu_domain *domain, unsigned long iova,
- size_t size);
phys_addr_t (*iova_to_phys)(struct iommu_domain *domain,
unsigned long iova);
int (*domain_has_cap)(struct iommu_domain *domain,
@@ -60,10 +56,6 @@ extern int iommu_attach_device(struct iommu_domain *domain,
struct device *dev);
extern void iommu_detach_device(struct iommu_domain *domain,
struct device *dev);
-extern int iommu_map_range(struct iommu_domain *domain, unsigned long iova,
- phys_addr_t paddr, size_t size, int prot);
-extern void iommu_unmap_range(struct iommu_domain *domain, unsigned long iova,
- size_t size);
extern int iommu_map(struct iommu_domain *domain, unsigned long iova,
phys_addr_t paddr, int gfp_order, int prot);
extern int iommu_unmap(struct iommu_domain *domain, unsigned long iova,
@@ -104,18 +96,6 @@ static inline void iommu_detach_device(struct iommu_domain *domain,
{
}
-static inline int iommu_map_range(struct iommu_domain *domain,
- unsigned long iova, phys_addr_t paddr,
- size_t size, int prot)
-{
- return -ENODEV;
-}
-
-static inline void iommu_unmap_range(struct iommu_domain *domain,
- unsigned long iova, size_t size)
-{
-}
-
static inline int iommu_map(struct iommu_domain *domain, unsigned long iova,
phys_addr_t paddr, int gfp_order, int prot)
{
--
1.6.6
--
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