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From: Sam Ravnborg <sam@ravnborg.org>
To: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: Barebox List <barebox@lists.infradead.org>
Subject: Re: [PATCH 08/12] ARM: mmu: Share code for dma_alloc_coherent()
Date: Thu, 17 Jan 2019 23:06:16 +0100	[thread overview]
Message-ID: <20190117220616.GB12259@ravnborg.org> (raw)
In-Reply-To: <CAHQ1cqEuppxED3KNjw08eg5QzBG5tjnPk6uAk-L2QYresOdHmg@mail.gmail.com>

On Thu, Jan 17, 2019 at 01:54:46PM -0800, Andrey Smirnov wrote:
> On Thu, Jan 17, 2019 at 1:23 PM Sam Ravnborg <sam@ravnborg.org> wrote:
> >
> > Hi Andrey.
> >
> > On Wed, Jan 16, 2019 at 10:38:36PM -0800, Andrey Smirnov wrote:
> > > Both ARM and ARM64 implement almost identical algorithms in
> > > dma_alloc_coherent(). Move the code to mmu-common.c, so it can be
> > > shared.
> > >
> > > Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
> > > ---
> > >  arch/arm/cpu/mmu-common.c | 21 +++++++++++++++++++++
> > >  arch/arm/cpu/mmu-common.h |  7 +++++++
> > We already have rch/arm/cpu/mmu.h, wait is the benefit of the extra header file?
> 
> Arch/arm/cpu/mmu.h is a 32-bit specific file that is not used on
> AArch64, which has its own counterpart in arch/arm/cpu/mmu_64.h.
> Mmu-common.h contains the bits that are shared between the two
> architectures.

I have only looked at 32bit so far, so missed that mmu.h was only 32bit.
With this in mind mmu-common.h makes good sense.

	Sam

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  reply	other threads:[~2019-01-17 22:06 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-17  6:38 [PATCH 00/12] ARM/ARM64 MMU code consolidation, zeroing of DMA coherent memory Andrey Smirnov
2019-01-17  6:38 ` [PATCH 01/12] ARM: mmu: Drop custom virt_to_phys/phys_to_virt Andrey Smirnov
2019-01-17  6:38 ` [PATCH 02/12] ARM: mmu: Simplify the use of dma_inv_range() Andrey Smirnov
2019-01-17  6:38 ` [PATCH 03/12] ARM: mmu: Share code for dma_(un)map_single() Andrey Smirnov
2019-01-17  6:38 ` [PATCH 04/12] ARM64: mmu: Use arch_remap_range() internaly Andrey Smirnov
2019-01-17  6:38 ` [PATCH 05/12] ARM64: mmu: Merge create_sections() and map_region() together Andrey Smirnov
2019-01-17  6:38 ` [PATCH 06/12] ARM: mmu: Share code for dma_free_coherent() Andrey Smirnov
2019-01-17  6:38 ` [PATCH 07/12] ARM64: mmu: Invalidate memory before remapping as DMA coherent Andrey Smirnov
2019-01-17  6:38 ` [PATCH 08/12] ARM: mmu: Share code for dma_alloc_coherent() Andrey Smirnov
2019-01-17 21:23   ` Sam Ravnborg
2019-01-17 21:54     ` Andrey Smirnov
2019-01-17 22:06       ` Sam Ravnborg [this message]
2019-01-17  6:38 ` [PATCH 09/12] ARM: mmu: Share code for dma_sync_single_for_cpu() Andrey Smirnov
2019-01-17 21:28   ` Sam Ravnborg
2019-01-17 21:50     ` Andrey Smirnov
2019-01-17 22:04       ` Sam Ravnborg
2019-01-17  6:38 ` [PATCH 10/12] ARM: mmu: Share sanity checking code in mmu_init() Andrey Smirnov
2019-01-17  6:38 ` [PATCH 11/12] ARM: mmu: Share code for arm_mmu_not_initialized_error() Andrey Smirnov
2019-01-17  6:38 ` [PATCH 12/12] ARM: mmu: Make sure DMA coherent memory is zeroed out Andrey Smirnov
2019-01-17 21:36   ` Sam Ravnborg
2019-01-17 22:00     ` Andrey Smirnov
2019-01-17 22:11       ` Sam Ravnborg
2019-01-17 21:40 ` [PATCH 00/12] ARM/ARM64 MMU code consolidation, zeroing of DMA coherent memory Sam Ravnborg
2019-01-17 22:01   ` Andrey Smirnov
2019-01-17 22:06   ` Sam Ravnborg

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