[PATCH] arm64: use memblocks_present

[PATCH] arm64: use memblocks_present

[Peng Fan]

arm64_memory_present is doing same thing as memblocks_present, so
let's use common code memblocks_present instead of platform
specific arm64_memory_present.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 arch/arm64/mm/init.c | 20 +-------------------
 1 file changed, 1 insertion(+), 19 deletions(-)

diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index 7205a9085b4d..2302b4093a63 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -285,24 +285,6 @@ int pfn_valid(unsigned long pfn)
 }
 EXPORT_SYMBOL(pfn_valid);
 
-#ifndef CONFIG_SPARSEMEM
-static void __init arm64_memory_present(void)
-{
-}
-#else
-static void __init arm64_memory_present(void)
-{
-	struct memblock_region *reg;
-
-	for_each_memblock(memory, reg) {
-		int nid = memblock_get_region_node(reg);
-
-		memory_present(nid, memblock_region_memory_base_pfn(reg),
-				memblock_region_memory_end_pfn(reg));
-	}
-}
-#endif
-
 static phys_addr_t memory_limit = PHYS_ADDR_MAX;
 
 /*
@@ -489,7 +471,7 @@ void __init bootmem_init(void)
 	 * Sparsemem tries to allocate bootmem in memory_present(), so must be
 	 * done after the fixed reservations.
 	 */
-	arm64_memory_present();
+	memblocks_present();
 
 	sparse_init();
 	zone_sizes_init(min, max);
-- 
2.14.1


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Re: [PATCH] arm64: use memblocks_present

[Mike Rapoport]

On Sun, Feb 10, 2019 at 09:28:43AM +0000, Peng Fan wrote:
> arm64_memory_present is doing same thing as memblocks_present, so
> let's use common code memblocks_present instead of platform
> specific arm64_memory_present.
> 
> Signed-off-by: Peng Fan <peng.fan@nxp.com>

Acked-by: Mike Rapoport <rppt@linux.ibm.com>

> ---
>  arch/arm64/mm/init.c | 20 +-------------------
>  1 file changed, 1 insertion(+), 19 deletions(-)
> 
> diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
> index 7205a9085b4d..2302b4093a63 100644
> --- a/arch/arm64/mm/init.c
> +++ b/arch/arm64/mm/init.c
> @@ -285,24 +285,6 @@ int pfn_valid(unsigned long pfn)
>  }
>  EXPORT_SYMBOL(pfn_valid);
>  
> -#ifndef CONFIG_SPARSEMEM
> -static void __init arm64_memory_present(void)
> -{
> -}
> -#else
> -static void __init arm64_memory_present(void)
> -{
> -	struct memblock_region *reg;
> -
> -	for_each_memblock(memory, reg) {
> -		int nid = memblock_get_region_node(reg);
> -
> -		memory_present(nid, memblock_region_memory_base_pfn(reg),
> -				memblock_region_memory_end_pfn(reg));
> -	}
> -}
> -#endif
> -
>  static phys_addr_t memory_limit = PHYS_ADDR_MAX;
>  
>  /*
> @@ -489,7 +471,7 @@ void __init bootmem_init(void)
>  	 * Sparsemem tries to allocate bootmem in memory_present(), so must be
>  	 * done after the fixed reservations.
>  	 */
> -	arm64_memory_present();
> +	memblocks_present();
>  
>  	sparse_init();
>  	zone_sizes_init(min, max);
> -- 
> 2.14.1
> 

-- 
Sincerely yours,
Mike.


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Re: [PATCH] arm64: use memblocks_present

[Will Deacon]

On Sun, Feb 10, 2019 at 09:28:43AM +0000, Peng Fan wrote:
> arm64_memory_present is doing same thing as memblocks_present, so
> let's use common code memblocks_present instead of platform
> specific arm64_memory_present.
> 
> Signed-off-by: Peng Fan <peng.fan@nxp.com>
> ---
>  arch/arm64/mm/init.c | 20 +-------------------
>  1 file changed, 1 insertion(+), 19 deletions(-)

Acked-by: Will Deacon <will.deacon@arm.com>

Catalin -- can you pick this one up, please?

Will

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Re: [PATCH] arm64: use memblocks_present

[Catalin Marinas]

On Sun, Feb 10, 2019 at 09:28:43AM +0000, Peng Fan wrote:
> arm64_memory_present is doing same thing as memblocks_present, so
> let's use common code memblocks_present instead of platform
> specific arm64_memory_present.
> 
> Signed-off-by: Peng Fan <peng.fan@nxp.com>

I already merged a similar one (see commit
a2c801c53d1682871fba1e037c9d3b0c9fffee8a in -next).

-- 
Catalin

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RE: [PATCH] arm64: use memblocks_present

[Peng Fan]

> -----Original Message-----
> From: Catalin Marinas [mailto:catalin.marinas@arm.com]
> Sent: 2019年2月11日 20:21
> To: Peng Fan <peng.fan@nxp.com>
> Cc: will.deacon@arm.com; akpm@linux-foundation.org;
> rppt@linux.vnet.ibm.com; ard.biesheuvel@linaro.org; f.fainelli@gmail.com;
> robin.murphy@arm.com; james.morse@arm.com; ghackmann@android.com;
> stefan@agner.ch; hannes@cmpxchg.org; logang@deltatee.com;
> linux-arm-kernel@lists.infradead.org; linux-kernel@vger.kernel.org;
> van.freenix@gmail.com
> Subject: Re: [PATCH] arm64: use memblocks_present
> 
> On Sun, Feb 10, 2019 at 09:28:43AM +0000, Peng Fan wrote:
> > arm64_memory_present is doing same thing as memblocks_present, so
> > let's use common code memblocks_present instead of platform specific
> > arm64_memory_present.
> >
> > Signed-off-by: Peng Fan <peng.fan@nxp.com>
> 
> I already merged a similar one (see commit
> a2c801c53d1682871fba1e037c9d3b0c9fffee8a in -next).

I should check your tree first before sending patches.

The arm32 code could also use similar logic, need check arm tree :)

Thanks,
Peng.

> 
> --
> Catalin
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Re: [PATCH] arm64: use memblocks_present

[Logan Gunthorpe]

On 2019-02-10 2:28 a.m., Peng Fan wrote:
> arm64_memory_present is doing same thing as memblocks_present, so
> let's use common code memblocks_present instead of platform
> specific arm64_memory_present.

I've already sent patches for this[1]. The arm64 one was already queued
up by Catalin.

Thanks,

Logan

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