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authorPaolo Bonzini <pbonzini@redhat.com>2022-06-09 09:45:00 -0400
committerPaolo Bonzini <pbonzini@redhat.com>2022-06-09 09:45:00 -0400
commit66da65005aa819e0b8d3a08f5ec1491b7690cb67 (patch)
tree001471fc80938e6e13c6ecf356503d4c65043d5a /arch/powerpc/mm/book3s64/iommu_api.c
parentKVM: x86: do not report a vCPU as preempted outside instruction boundaries (diff)
parentMAINTAINERS: Limit KVM RISC-V entry to existing selftests (diff)
downloadlinux-dev-66da65005aa819e0b8d3a08f5ec1491b7690cb67.tar.xz
linux-dev-66da65005aa819e0b8d3a08f5ec1491b7690cb67.zip
Merge tag 'kvm-riscv-fixes-5.19-1' of https://github.com/kvm-riscv/linux into HEAD
KVM/riscv fixes for 5.19, take #1 - Typo fix in arch/riscv/kvm/vmid.c - Remove broken reference pattern from MAINTAINERS entry
Diffstat (limited to 'arch/powerpc/mm/book3s64/iommu_api.c')
-rw-r--r--arch/powerpc/mm/book3s64/iommu_api.c68
1 files changed, 0 insertions, 68 deletions
diff --git a/arch/powerpc/mm/book3s64/iommu_api.c b/arch/powerpc/mm/book3s64/iommu_api.c
index cd18e94d0843..7fcfba162e0d 100644
--- a/arch/powerpc/mm/book3s64/iommu_api.c
+++ b/arch/powerpc/mm/book3s64/iommu_api.c
@@ -305,24 +305,6 @@ struct mm_iommu_table_group_mem_t *mm_iommu_lookup(struct mm_struct *mm,
}
EXPORT_SYMBOL_GPL(mm_iommu_lookup);
-struct mm_iommu_table_group_mem_t *mm_iommu_lookup_rm(struct mm_struct *mm,
- unsigned long ua, unsigned long size)
-{
- struct mm_iommu_table_group_mem_t *mem, *ret = NULL;
-
- list_for_each_entry_lockless(mem, &mm->context.iommu_group_mem_list,
- next) {
- if ((mem->ua <= ua) &&
- (ua + size <= mem->ua +
- (mem->entries << PAGE_SHIFT))) {
- ret = mem;
- break;
- }
- }
-
- return ret;
-}
-
struct mm_iommu_table_group_mem_t *mm_iommu_get(struct mm_struct *mm,
unsigned long ua, unsigned long entries)
{
@@ -369,56 +351,6 @@ long mm_iommu_ua_to_hpa(struct mm_iommu_table_group_mem_t *mem,
}
EXPORT_SYMBOL_GPL(mm_iommu_ua_to_hpa);
-long mm_iommu_ua_to_hpa_rm(struct mm_iommu_table_group_mem_t *mem,
- unsigned long ua, unsigned int pageshift, unsigned long *hpa)
-{
- const long entry = (ua - mem->ua) >> PAGE_SHIFT;
- unsigned long *pa;
-
- if (entry >= mem->entries)
- return -EFAULT;
-
- if (pageshift > mem->pageshift)
- return -EFAULT;
-
- if (!mem->hpas) {
- *hpa = mem->dev_hpa + (ua - mem->ua);
- return 0;
- }
-
- pa = (void *) vmalloc_to_phys(&mem->hpas[entry]);
- if (!pa)
- return -EFAULT;
-
- *hpa = (*pa & MM_IOMMU_TABLE_GROUP_PAGE_MASK) | (ua & ~PAGE_MASK);
-
- return 0;
-}
-
-extern void mm_iommu_ua_mark_dirty_rm(struct mm_struct *mm, unsigned long ua)
-{
- struct mm_iommu_table_group_mem_t *mem;
- long entry;
- void *va;
- unsigned long *pa;
-
- mem = mm_iommu_lookup_rm(mm, ua, PAGE_SIZE);
- if (!mem)
- return;
-
- if (mem->dev_hpa != MM_IOMMU_TABLE_INVALID_HPA)
- return;
-
- entry = (ua - mem->ua) >> PAGE_SHIFT;
- va = &mem->hpas[entry];
-
- pa = (void *) vmalloc_to_phys(va);
- if (!pa)
- return;
-
- *pa |= MM_IOMMU_TABLE_GROUP_PAGE_DIRTY;
-}
-
bool mm_iommu_is_devmem(struct mm_struct *mm, unsigned long hpa,
unsigned int pageshift, unsigned long *size)
{