[PATCH kernel v3 5/7] KVM: PPC: Replace SPAPR_TCE_SHIFT with IOMMU_PAGE_SHIFT_4K

[Alexey Kardashevskiy]

SPAPR_TCE_SHIFT is used in few places only and since IOMMU_PAGE_SHIFT_4K
can be easily used instead, remove SPAPR_TCE_SHIFT.

Signed-off-by: Alexey Kardashevskiy <a...@ozlabs.ru>
Reviewed-by: David Gibson <da...@gibson.dropbear.id.au>
---
 arch/powerpc/include/asm/kvm_book3s_64.h | 2 --
 arch/powerpc/kvm/book3s_64_vio.c         | 3 ++-
 arch/powerpc/kvm/book3s_64_vio_hv.c      | 4 ++--
 3 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/arch/powerpc/include/asm/kvm_book3s_64.h 
b/arch/powerpc/include/asm/kvm_book3s_64.h
index 2aa79c8..7529aab 100644
--- a/arch/powerpc/include/asm/kvm_book3s_64.h
+++ b/arch/powerpc/include/asm/kvm_book3s_64.h
@@ -33,8 +33,6 @@ static inline void svcpu_put(struct kvmppc_book3s_shadow_vcpu 
*svcpu)
 }
 #endif
 
-#define SPAPR_TCE_SHIFT                12
-
 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 #define KVM_DEFAULT_HPT_ORDER  24      /* 16MB HPT by default */
 #endif
diff --git a/arch/powerpc/kvm/book3s_64_vio.c b/arch/powerpc/kvm/book3s_64_vio.c
index 1a1e14f..84993d1 100644
--- a/arch/powerpc/kvm/book3s_64_vio.c
+++ b/arch/powerpc/kvm/book3s_64_vio.c
@@ -36,12 +36,13 @@
 #include <asm/ppc-opcode.h>
 #include <asm/kvm_host.h>
 #include <asm/udbg.h>
+#include <asm/iommu.h>
 
 #define TCES_PER_PAGE  (PAGE_SIZE / sizeof(u64))
 
 static unsigned long kvmppc_tce_pages(unsigned long window_size)
 {
-       return ALIGN((window_size >> SPAPR_TCE_SHIFT)
+       return ALIGN((window_size >> IOMMU_PAGE_SHIFT_4K)
                     * sizeof(u64), PAGE_SIZE) / PAGE_SIZE;
 }
 
diff --git a/arch/powerpc/kvm/book3s_64_vio_hv.c 
b/arch/powerpc/kvm/book3s_64_vio_hv.c
index 124d692..0ce4ffb 100644
--- a/arch/powerpc/kvm/book3s_64_vio_hv.c
+++ b/arch/powerpc/kvm/book3s_64_vio_hv.c
@@ -99,7 +99,7 @@ long kvmppc_h_put_tce(struct kvm_vcpu *vcpu, unsigned long 
liobn,
        if (ret != H_SUCCESS)
                return ret;
 
-       idx = ioba >> SPAPR_TCE_SHIFT;
+       idx = ioba >> IOMMU_PAGE_SHIFT_4K;
        page = stt->pages[idx / TCES_PER_PAGE];
        tbl = (u64 *)page_address(page);
 
@@ -127,7 +127,7 @@ long kvmppc_h_get_tce(struct kvm_vcpu *vcpu, unsigned long 
liobn,
        if (ret != H_SUCCESS)
                return ret;
 
-       idx = ioba >> SPAPR_TCE_SHIFT;
+       idx = ioba >> IOMMU_PAGE_SHIFT_4K;
        page = stt->pages[idx / TCES_PER_PAGE];
        tbl = (u64 *)page_address(page);
 
-- 
2.5.0.rc3

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