From 3cb7feab5fcf78331b6e0e47f45c6f1d4d9944f1 Mon Sep 17 00:00:00 2001 From: Quentin Perret Date: Tue, 26 Oct 2021 13:44:55 +0100 Subject: [PATCH] ANDROID: KVM: arm64: Move hyp refcount manipulation helpers We will soon need to manipulate struct hyp_page refcounts from outside page_alloc.c, so move the helpers to a header file. Signed-off-by: Quentin Perret Bug: 209580772 Change-Id: I5cfeeb1e3e6a61cbba70c242cf25e035b26149e7 Signed-off-by: Will Deacon --- arch/arm64/kvm/hyp/include/nvhe/memory.h | 18 ++++++++++++++++++ arch/arm64/kvm/hyp/nvhe/page_alloc.c | 19 ------------------- 2 files changed, 18 insertions(+), 19 deletions(-) diff --git a/arch/arm64/kvm/hyp/include/nvhe/memory.h b/arch/arm64/kvm/hyp/include/nvhe/memory.h index 083b401e5840..5e2d7fc59747 100644 --- a/arch/arm64/kvm/hyp/include/nvhe/memory.h +++ b/arch/arm64/kvm/hyp/include/nvhe/memory.h @@ -46,4 +46,22 @@ static inline int hyp_page_count(void *addr) return p->refcount; } +static inline void hyp_page_ref_inc(struct hyp_page *p) +{ + BUG_ON(p->refcount == USHRT_MAX); + p->refcount++; +} + +static inline int hyp_page_ref_dec_and_test(struct hyp_page *p) +{ + BUG_ON(!p->refcount); + p->refcount--; + return (p->refcount == 0); +} + +static inline void hyp_set_page_refcounted(struct hyp_page *p) +{ + BUG_ON(p->refcount); + p->refcount = 1; +} #endif /* __KVM_HYP_MEMORY_H */ diff --git a/arch/arm64/kvm/hyp/nvhe/page_alloc.c b/arch/arm64/kvm/hyp/nvhe/page_alloc.c index 543cad6c376a..38ea4e1aa72f 100644 --- a/arch/arm64/kvm/hyp/nvhe/page_alloc.c +++ b/arch/arm64/kvm/hyp/nvhe/page_alloc.c @@ -144,25 +144,6 @@ static struct hyp_page *__hyp_extract_page(struct hyp_pool *pool, return p; } -static inline void hyp_page_ref_inc(struct hyp_page *p) -{ - BUG_ON(p->refcount == USHRT_MAX); - p->refcount++; -} - -static inline int hyp_page_ref_dec_and_test(struct hyp_page *p) -{ - BUG_ON(!p->refcount); - p->refcount--; - return (p->refcount == 0); -} - -static inline void hyp_set_page_refcounted(struct hyp_page *p) -{ - BUG_ON(p->refcount); - p->refcount = 1; -} - static void __hyp_put_page(struct hyp_pool *pool, struct hyp_page *p) { if (hyp_page_ref_dec_and_test(p))