linux-kernel - Re: [PATCH v2 2/6] microblaze: prefer memblock API returning virtual address

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Message-ID: <0a5e0aef-15fd-2d0c-765c-e7ba60219b00@monstr.eu>
Date:   Wed, 5 Dec 2018 16:29:40 +0100
From:   Michal Simek <monstr@...str.eu>
To:     Mike Rapoport <rppt@...ux.ibm.com>,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        "David S. Miller" <davem@...emloft.net>,
        Guan Xuetao <gxt@....edu.cn>,
        Greentime Hu <green.hu@...il.com>,
        Jonas Bonn <jonas@...thpole.se>,
        Michael Ellerman <mpe@...erman.id.au>,
        Michal Hocko <mhocko@...e.com>,
        Mark Salter <msalter@...hat.com>,
        Paul Mackerras <paulus@...ba.org>,
        Rich Felker <dalias@...c.org>,
        Russell King <linux@...linux.org.uk>,
        Stefan Kristiansson <stefan.kristiansson@...nalahti.fi>,
        Stafford Horne <shorne@...il.com>,
        Vincent Chen <deanbo422@...il.com>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        linux-arm-kernel@...ts.infradead.org, linux-c6x-dev@...ux-c6x.org,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        linux-sh@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        openrisc@...ts.librecores.org, sparclinux@...r.kernel.org,
        Michal Simek <michal.simek@...inx.com>
Subject: Re: [PATCH v2 2/6] microblaze: prefer memblock API returning virtual
 address

On 03. 12. 18 16:47, Mike Rapoport wrote:
> Rather than use the memblock_alloc_base that returns a physical address and
> then convert this address to the virtual one, use appropriate memblock
> function that returns a virtual address.
> 
> Signed-off-by: Mike Rapoport <rppt@...ux.ibm.com>
> ---
>  arch/microblaze/mm/init.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c
> index b17fd8a..44f4b89 100644
> --- a/arch/microblaze/mm/init.c
> +++ b/arch/microblaze/mm/init.c
> @@ -363,8 +363,9 @@ void __init *early_get_page(void)
>  	 * Mem start + kernel_tlb -> here is limit
>  	 * because of mem mapping from head.S
>  	 */
> -	return __va(memblock_alloc_base(PAGE_SIZE, PAGE_SIZE,
> -				memory_start + kernel_tlb));
> +	return memblock_alloc_try_nid_raw(PAGE_SIZE, PAGE_SIZE,
> +				MEMBLOCK_LOW_LIMIT, memory_start + kernel_tlb,
> +				NUMA_NO_NODE);
>  }
>  
>  #endif /* CONFIG_MMU */
> 

I can't see any issue with functionality when this patch is applied.
If you want me to take this via my tree please let me know.
Otherwise:

Tested-by: Michal Simek <michal.simek@...inx.com>

Thanks,
Michal

-- 
Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel - Xilinx Microblaze
Maintainer of Linux kernel - Xilinx Zynq ARM and ZynqMP ARM64 SoCs
U-Boot custodian - Xilinx Microblaze/Zynq/ZynqMP/Versal SoCs




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