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From: Christoph Hellwig <hch@infradead.org>
To: Serge Semin <fancer.lancer@gmail.com>
Cc: Ralf Baechle <ralf@linux-mips.org>,
	Paul Burton <paul.burton@mips.com>,
	James Hogan <jhogan@kernel.org>,
	Matt Redfearn <matt.redfearn@mips.com>,
	Mike Rapoport <rppt@linux.ibm.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Michal Hocko <mhocko@suse.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Thomas Bogendoerfer <tbogendoerfer@suse.de>,
	Huacai Chen <chenhc@lemote.com>, Stefan Agner <stefan@agner.ch>,
	Stephen Rothwell <sfr@canb.auug.org.au>,
	Alexandre Belloni <alexandre.belloni@bootlin.com>,
	Juergen Gross <jgross@suse.com>,
	linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 12/12] mips: Enable OF_RESERVED_MEM config
Date: Tue, 23 Apr 2019 23:17:50 -0700
Message-ID: <20190424061750.GA30717@infradead.org> (raw)
In-Reply-To: <20190423224748.3765-13-fancer.lancer@gmail.com>

On Wed, Apr 24, 2019 at 01:47:48AM +0300, Serge Semin wrote:
> Since memblock-patchset was introduced the reserved-memory nodes are
> supported being declared in dt-files. So these nodes are actually parsed
> during the arch setup procedure when the early_init_fdt_scan_reserved_mem()
> method is called. But some of the features like private reserved memory
> pools aren't available at the moment, since OF_RESERVED_MEM isn't enabled
> for the MIPS platform. Lets fix it by enabling the config.
> 
> But due to the arch-specific boot mem_map container utilization we need
> to manually call the fdt_init_reserved_mem() method after all the available
> and reserved memory has been moved to memblock. The function call performed
> before bootmem_init() fails due to the lack of any memblock memory regions
> to allocate from at that stage.

Architectures should not select this symbol directly, it will be
automatically enabled if either DMA_DECLARE_COHERENT or DMA_CMA
are enabled, which are required for the actual underlying memory
allocators.

  reply index

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-23 22:47 [PATCH 00/12] mips: Post-bootmem-memblock transition fixes Serge Semin
2019-04-23 22:47 ` [PATCH 01/12] mips: Make sure kernel .bss exists in boot mem pool Serge Semin
2019-04-24 22:30   ` Paul Burton
2019-04-23 22:47 ` [PATCH 02/12] mips: Discard rudiments from bootmem_init Serge Semin
2019-04-24 22:30   ` Paul Burton
2019-04-23 22:47 ` [PATCH 03/12] mips: Combine memblock init and memory reservation loops Serge Semin
2019-04-24 22:30   ` Paul Burton
2019-04-23 22:47 ` [PATCH 04/12] mips: Reserve memory for the kernel image resources Serge Semin
2019-04-24 22:43   ` Paul Burton
2019-04-26  0:00     ` Serge Semin
2019-04-30 22:58       ` Paul Burton
2019-05-02 14:24         ` Serge Semin
2019-05-02 18:45           ` Paul Burton
2019-05-03 17:21             ` Serge Semin
2019-05-02 18:35   ` Paul Burton
2019-05-21 14:56   ` Geert Uytterhoeven
2019-05-21 15:53     ` Mike Rapoport
2019-05-21 16:39       ` Serge Semin
2019-05-22  7:50         ` Geert Uytterhoeven
2019-05-22  7:47       ` Geert Uytterhoeven
2019-05-22  8:08         ` Mike Rapoport
2019-05-22  8:14           ` Geert Uytterhoeven
2019-05-22 13:34             ` Serge Semin
2019-05-22 13:44               ` Geert Uytterhoeven
2019-05-22 13:54                 ` Serge Semin
2020-10-14  9:49                   ` Maciej W. Rozycki
2019-04-23 22:47 ` [PATCH 05/12] mips: Discard post-CMA-init foreach loop Serge Semin
2019-05-02 18:35   ` Paul Burton
2019-04-23 22:47 ` [PATCH 06/12] mips: Use memblock to reserve the __nosave memory range Serge Semin
2019-05-02 18:35   ` Paul Burton
2019-04-23 22:47 ` [PATCH 07/12] mips: Add reserve-nomap memory type support Serge Semin
2019-05-02 18:35   ` Paul Burton
2019-04-23 22:47 ` [PATCH 08/12] mips: Dump memblock regions for debugging Serge Semin
2019-04-24 13:45   ` Mike Rapoport
2019-04-24 14:20     ` Serge Semin
2019-04-23 22:47 ` [PATCH 09/12] mips: Perform early low memory test Serge Semin
2019-04-23 22:47 ` [PATCH 10/12] mips: Print the kernel virtual mem layout on debugging Serge Semin
2019-04-24 13:47   ` Mike Rapoport
2019-04-24 14:35     ` Serge Semin
2019-04-23 22:47 ` [PATCH 11/12] mips: Make sure dt memory regions are valid Serge Semin
2019-04-23 22:47 ` [PATCH 12/12] mips: Enable OF_RESERVED_MEM config Serge Semin
2019-04-24  6:17   ` Christoph Hellwig [this message]
2019-04-24  8:34     ` Serge Semin

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