* [PATCH] powerpc/64s/radix: remove unused flush_tlb_lpid variants
@ 2018-02-03 6:58 Nicholas Piggin
2018-02-05 5:21 ` Aneesh Kumar K.V
0 siblings, 1 reply; 2+ messages in thread
From: Nicholas Piggin @ 2018-02-03 6:58 UTC (permalink / raw)
To: linuxppc-dev; +Cc: Nicholas Piggin, Aneesh Kumar K . V
These were intended for use by KVM, but it has its own LPID
flushing code and never used these.
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
.../powerpc/include/asm/book3s/64/tlbflush-radix.h | 3 --
arch/powerpc/mm/tlb-radix.c | 40 ----------------------
2 files changed, 43 deletions(-)
diff --git a/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h b/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h
index 8eea90f80e45..19b45ba6caf9 100644
--- a/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h
+++ b/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h
@@ -47,9 +47,6 @@ extern void radix__flush_tlb_page_psize(struct mm_struct *mm, unsigned long vmad
#endif
extern void radix__flush_tlb_pwc(struct mmu_gather *tlb, unsigned long addr);
extern void radix__flush_tlb_collapsed_pmd(struct mm_struct *mm, unsigned long addr);
-extern void radix__flush_tlb_lpid_va(unsigned long lpid, unsigned long gpa,
- unsigned long page_size);
-extern void radix__flush_tlb_lpid(unsigned long lpid);
extern void radix__flush_tlb_all(void);
extern void radix__flush_tlb_pte_p9_dd1(unsigned long old_pte, struct mm_struct *mm,
unsigned long address);
diff --git a/arch/powerpc/mm/tlb-radix.c b/arch/powerpc/mm/tlb-radix.c
index 71d1b19ad1c0..8ce858ec59e1 100644
--- a/arch/powerpc/mm/tlb-radix.c
+++ b/arch/powerpc/mm/tlb-radix.c
@@ -603,46 +603,6 @@ void radix__flush_tlb_collapsed_pmd(struct mm_struct *mm, unsigned long addr)
}
#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
-void radix__flush_tlb_lpid_va(unsigned long lpid, unsigned long gpa,
- unsigned long page_size)
-{
- unsigned long rb,rs,prs,r;
- unsigned long ap;
- unsigned long ric = RIC_FLUSH_TLB;
-
- ap = mmu_get_ap(radix_get_mmu_psize(page_size));
- rb = gpa & ~(PPC_BITMASK(52, 63));
- rb |= ap << PPC_BITLSHIFT(58);
- rs = lpid & ((1UL << 32) - 1);
- prs = 0; /* process scoped */
- r = 1; /* raidx format */
-
- asm volatile("ptesync": : :"memory");
- asm volatile(PPC_TLBIE_5(%0, %4, %3, %2, %1)
- : : "r"(rb), "i"(r), "i"(prs), "i"(ric), "r"(rs) : "memory");
- asm volatile("eieio; tlbsync; ptesync": : :"memory");
- trace_tlbie(lpid, 0, rb, rs, ric, prs, r);
-}
-EXPORT_SYMBOL(radix__flush_tlb_lpid_va);
-
-void radix__flush_tlb_lpid(unsigned long lpid)
-{
- unsigned long rb,rs,prs,r;
- unsigned long ric = RIC_FLUSH_ALL;
-
- rb = 0x2 << PPC_BITLSHIFT(53); /* IS = 2 */
- rs = lpid & ((1UL << 32) - 1);
- prs = 0; /* partition scoped */
- r = 1; /* raidx format */
-
- asm volatile("ptesync": : :"memory");
- asm volatile(PPC_TLBIE_5(%0, %4, %3, %2, %1)
- : : "r"(rb), "i"(r), "i"(prs), "i"(ric), "r"(rs) : "memory");
- asm volatile("eieio; tlbsync; ptesync": : :"memory");
- trace_tlbie(lpid, 0, rb, rs, ric, prs, r);
-}
-EXPORT_SYMBOL(radix__flush_tlb_lpid);
-
void radix__flush_pmd_tlb_range(struct vm_area_struct *vma,
unsigned long start, unsigned long end)
{
--
2.15.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] powerpc/64s/radix: remove unused flush_tlb_lpid variants
2018-02-03 6:58 [PATCH] powerpc/64s/radix: remove unused flush_tlb_lpid variants Nicholas Piggin
@ 2018-02-05 5:21 ` Aneesh Kumar K.V
0 siblings, 0 replies; 2+ messages in thread
From: Aneesh Kumar K.V @ 2018-02-05 5:21 UTC (permalink / raw)
To: Nicholas Piggin, linuxppc-dev; +Cc: Nicholas Piggin
Nicholas Piggin <npiggin@gmail.com> writes:
> These were intended for use by KVM, but it has its own LPID
> flushing code and never used these.
>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
> Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
> Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
> ---
> .../powerpc/include/asm/book3s/64/tlbflush-radix.h | 3 --
> arch/powerpc/mm/tlb-radix.c | 40 ----------------------
> 2 files changed, 43 deletions(-)
>
> diff --git a/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h b/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h
> index 8eea90f80e45..19b45ba6caf9 100644
> --- a/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h
> +++ b/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h
> @@ -47,9 +47,6 @@ extern void radix__flush_tlb_page_psize(struct mm_struct *mm, unsigned long vmad
> #endif
> extern void radix__flush_tlb_pwc(struct mmu_gather *tlb, unsigned long addr);
> extern void radix__flush_tlb_collapsed_pmd(struct mm_struct *mm, unsigned long addr);
> -extern void radix__flush_tlb_lpid_va(unsigned long lpid, unsigned long gpa,
> - unsigned long page_size);
> -extern void radix__flush_tlb_lpid(unsigned long lpid);
> extern void radix__flush_tlb_all(void);
> extern void radix__flush_tlb_pte_p9_dd1(unsigned long old_pte, struct mm_struct *mm,
> unsigned long address);
> diff --git a/arch/powerpc/mm/tlb-radix.c b/arch/powerpc/mm/tlb-radix.c
> index 71d1b19ad1c0..8ce858ec59e1 100644
> --- a/arch/powerpc/mm/tlb-radix.c
> +++ b/arch/powerpc/mm/tlb-radix.c
> @@ -603,46 +603,6 @@ void radix__flush_tlb_collapsed_pmd(struct mm_struct *mm, unsigned long addr)
> }
> #endif /* CONFIG_TRANSPARENT_HUGEPAGE */
>
> -void radix__flush_tlb_lpid_va(unsigned long lpid, unsigned long gpa,
> - unsigned long page_size)
> -{
> - unsigned long rb,rs,prs,r;
> - unsigned long ap;
> - unsigned long ric = RIC_FLUSH_TLB;
> -
> - ap = mmu_get_ap(radix_get_mmu_psize(page_size));
> - rb = gpa & ~(PPC_BITMASK(52, 63));
> - rb |= ap << PPC_BITLSHIFT(58);
> - rs = lpid & ((1UL << 32) - 1);
> - prs = 0; /* process scoped */
> - r = 1; /* raidx format */
> -
> - asm volatile("ptesync": : :"memory");
> - asm volatile(PPC_TLBIE_5(%0, %4, %3, %2, %1)
> - : : "r"(rb), "i"(r), "i"(prs), "i"(ric), "r"(rs) : "memory");
> - asm volatile("eieio; tlbsync; ptesync": : :"memory");
> - trace_tlbie(lpid, 0, rb, rs, ric, prs, r);
> -}
> -EXPORT_SYMBOL(radix__flush_tlb_lpid_va);
> -
> -void radix__flush_tlb_lpid(unsigned long lpid)
> -{
> - unsigned long rb,rs,prs,r;
> - unsigned long ric = RIC_FLUSH_ALL;
> -
> - rb = 0x2 << PPC_BITLSHIFT(53); /* IS = 2 */
> - rs = lpid & ((1UL << 32) - 1);
> - prs = 0; /* partition scoped */
> - r = 1; /* raidx format */
> -
> - asm volatile("ptesync": : :"memory");
> - asm volatile(PPC_TLBIE_5(%0, %4, %3, %2, %1)
> - : : "r"(rb), "i"(r), "i"(prs), "i"(ric), "r"(rs) : "memory");
> - asm volatile("eieio; tlbsync; ptesync": : :"memory");
> - trace_tlbie(lpid, 0, rb, rs, ric, prs, r);
> -}
> -EXPORT_SYMBOL(radix__flush_tlb_lpid);
> -
> void radix__flush_pmd_tlb_range(struct vm_area_struct *vma,
> unsigned long start, unsigned long end)
> {
> --
> 2.15.1
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