* [PATCH] arm64: drop unused __local_flush_icache_all()
@ 2016-03-15 9:47 Kefeng Wang
2016-03-15 11:32 ` Mark Rutland
2016-03-21 12:10 ` Catalin Marinas
0 siblings, 2 replies; 3+ messages in thread
From: Kefeng Wang @ 2016-03-15 9:47 UTC (permalink / raw)
To: linux-arm-kernel
After commit 65da0a8e34a8 ("arm64: use non-global mappings for UEFI
runtime regions"), nobody use __local_flush_icache_all() anymore,
so drop it.
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
---
arch/arm64/include/asm/cacheflush.h | 7 -------
1 file changed, 7 deletions(-)
diff --git a/arch/arm64/include/asm/cacheflush.h b/arch/arm64/include/asm/cacheflush.h
index 22dda61..c64268d 100644
--- a/arch/arm64/include/asm/cacheflush.h
+++ b/arch/arm64/include/asm/cacheflush.h
@@ -116,13 +116,6 @@ extern void copy_to_user_page(struct vm_area_struct *, struct page *,
#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
extern void flush_dcache_page(struct page *);
-static inline void __local_flush_icache_all(void)
-{
- asm("ic iallu");
- dsb(nsh);
- isb();
-}
-
static inline void __flush_icache_all(void)
{
asm("ic ialluis");
--
2.6.0.GIT
^ permalink raw reply related [flat|nested] 3+ messages in thread* [PATCH] arm64: drop unused __local_flush_icache_all()
2016-03-15 9:47 [PATCH] arm64: drop unused __local_flush_icache_all() Kefeng Wang
@ 2016-03-15 11:32 ` Mark Rutland
2016-03-21 12:10 ` Catalin Marinas
1 sibling, 0 replies; 3+ messages in thread
From: Mark Rutland @ 2016-03-15 11:32 UTC (permalink / raw)
To: linux-arm-kernel
On Tue, Mar 15, 2016 at 05:47:10PM +0800, Kefeng Wang wrote:
> After commit 65da0a8e34a8 ("arm64: use non-global mappings for UEFI
> runtime regions"), nobody use __local_flush_icache_all() anymore,
> so drop it.
>
> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
The only other user was the old ASID allocator. For the boot and idle
paths we do the local maintenance in asm. I don't imagine we're likely
to need this again soon.
So FWIW:
Acked-by: Mark Rutland <mark.rutland@arm.com>
Mark.
> ---
> arch/arm64/include/asm/cacheflush.h | 7 -------
> 1 file changed, 7 deletions(-)
>
> diff --git a/arch/arm64/include/asm/cacheflush.h b/arch/arm64/include/asm/cacheflush.h
> index 22dda61..c64268d 100644
> --- a/arch/arm64/include/asm/cacheflush.h
> +++ b/arch/arm64/include/asm/cacheflush.h
> @@ -116,13 +116,6 @@ extern void copy_to_user_page(struct vm_area_struct *, struct page *,
> #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
> extern void flush_dcache_page(struct page *);
>
> -static inline void __local_flush_icache_all(void)
> -{
> - asm("ic iallu");
> - dsb(nsh);
> - isb();
> -}
> -
> static inline void __flush_icache_all(void)
> {
> asm("ic ialluis");
> --
> 2.6.0.GIT
>
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel at lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
>
^ permalink raw reply [flat|nested] 3+ messages in thread* [PATCH] arm64: drop unused __local_flush_icache_all()
2016-03-15 9:47 [PATCH] arm64: drop unused __local_flush_icache_all() Kefeng Wang
2016-03-15 11:32 ` Mark Rutland
@ 2016-03-21 12:10 ` Catalin Marinas
1 sibling, 0 replies; 3+ messages in thread
From: Catalin Marinas @ 2016-03-21 12:10 UTC (permalink / raw)
To: linux-arm-kernel
On Tue, Mar 15, 2016 at 05:47:10PM +0800, Kefeng Wang wrote:
> After commit 65da0a8e34a8 ("arm64: use non-global mappings for UEFI
> runtime regions"), nobody use __local_flush_icache_all() anymore,
> so drop it.
>
> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Applied. Thanks.
--
Catalin
^ permalink raw reply [flat|nested] 3+ messages in thread
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2016-03-15 9:47 [PATCH] arm64: drop unused __local_flush_icache_all() Kefeng Wang
2016-03-15 11:32 ` Mark Rutland
2016-03-21 12:10 ` Catalin Marinas
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