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iommu/pages: Remove __iommu_alloc_pages()/__iommu_free_pages()

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These were only used by tegra-smmu and leaked the struct page out of the
API. Delete them since tega-smmu has been converted to the other APIs.

In the process flatten the call tree so we have fewer one line functions
calling other one line functions.. iommu_alloc_pages_node() is the real
allocator and everything else can just call it directly.

Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Mostafa Saleh <smostafa@google.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/3-v4-c8663abbb606+3f7-iommu_pages_jgg@nvidia.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Jason Gunthorpe 2025-04-08 13:53:51 -03:00 committed by Joerg Roedel
parent a96969a915
commit 8360c03dd9
1 changed files with 7 additions and 42 deletions
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49
drivers/iommu/iommu-pages.h
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@ -46,40 +46,6 @@ static inline void __iommu_free_account(struct page *page, int order)
mod_lruvec_page_state(page, NR_SECONDARY_PAGETABLE, -pgcnt);
}
/**
* __iommu_alloc_pages - allocate a zeroed page of a given order.
* @gfp: buddy allocator flags
* @order: page order
*
* returns the head struct page of the allocated page.
*/
static inline struct page *__iommu_alloc_pages(gfp_t gfp, int order)
{
struct page *page;
page = alloc_pages(gfp | __GFP_ZERO, order);
if (unlikely(!page))
return NULL;
__iommu_alloc_account(page, order);
return page;
}
/**
* __iommu_free_pages - free page of a given order
* @page: head struct page of the page
* @order: page order
*/
static inline void __iommu_free_pages(struct page *page, int order)
{
if (!page)
return;
__iommu_free_account(page, order);
__free_pages(page, order);
}
/**
* iommu_alloc_pages_node - allocate a zeroed page of a given order from
* specific NUMA node.
@ -110,12 +76,7 @@ static inline void *iommu_alloc_pages_node(int nid, gfp_t gfp, int order)
*/
static inline void *iommu_alloc_pages(gfp_t gfp, int order)
{
struct page *page = __iommu_alloc_pages(gfp, order);
if (unlikely(!page))
return NULL;
return page_address(page);
return iommu_alloc_pages_node(numa_node_id(), gfp, order);
}
/**
@ -138,7 +99,7 @@ static inline void *iommu_alloc_page_node(int nid, gfp_t gfp)
*/
static inline void *iommu_alloc_page(gfp_t gfp)
{
return iommu_alloc_pages(gfp, 0);
return iommu_alloc_pages_node(numa_node_id(), gfp, 0);
}
/**
@ -148,10 +109,14 @@ static inline void *iommu_alloc_page(gfp_t gfp)
*/
static inline void iommu_free_pages(void *virt, int order)
{
struct page *page;
if (!virt)
return;
__iommu_free_pages(virt_to_page(virt), order);
page = virt_to_page(virt);
__iommu_free_account(page, order);
__free_pages(page, order);
}
/**