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From: Shameerali Kolothum Thodi <shameerali.kolothum.thodi@huawei.com>
To: Sami Mujawar <Sami.Mujawar@arm.com>,
	"david.e.box@linux.intel.com" <david.e.box@linux.intel.com>,
	"linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>,
	"linux-acpi@vger.kernel.org" <linux-acpi@vger.kernel.org>,
	"iommu@lists.linux-foundation.org"
	<iommu@lists.linux-foundation.org>,
	"devel@acpica.org" <devel@acpica.org>
Cc: Linuxarm <linuxarm@huawei.com>,
	Lorenzo Pieralisi <Lorenzo.Pieralisi@arm.com>,
	"joro@8bytes.org" <joro@8bytes.org>,
	"Robin Murphy" <Robin.Murphy@arm.com>,
	wanghuiqiang <wanghuiqiang@huawei.com>,
	Jonathan Cameron <jonathan.cameron@huawei.com>, nd <nd@arm.com>
Subject: RE: [Devel] Re: [RFC PATCH 2/4] ACPI/IORT: Add support for RMR node parsing
Date: Thu, 19 Nov 2020 12:07:07 +0000
Message-ID: <735edb5c4da842609c1d2a0eed73b06c@huawei.com> (raw)
In-Reply-To: <DB7PR08MB3097062CEEDB4635BF3F694784EA0@DB7PR08MB3097.eurprd08.prod.outlook.com>



> -----Original Message-----
> From: Sami Mujawar [mailto:Sami.Mujawar@arm.com]
> Sent: 09 November 2020 12:30
> To: david.e.box@linux.intel.com; Shameerali Kolothum Thodi
> <shameerali.kolothum.thodi@huawei.com>;
> linux-arm-kernel@lists.infradead.org; linux-acpi@vger.kernel.org;
> iommu@lists.linux-foundation.org; devel@acpica.org
> Cc: Linuxarm <linuxarm@huawei.com>; Lorenzo Pieralisi
> <Lorenzo.Pieralisi@arm.com>; joro@8bytes.org; Robin Murphy
> <Robin.Murphy@arm.com>; wanghuiqiang <wanghuiqiang@huawei.com>;
> Jonathan Cameron <jonathan.cameron@huawei.com>; nd <nd@arm.com>
> Subject: RE: [Devel] Re: [RFC PATCH 2/4] ACPI/IORT: Add support for RMR node
> parsing
> 
> Hi,
> 
> -----Original Message-----
> From: David E. Box <david.e.box@linux.intel.com>
> Sent: 28 October 2020 06:44 PM
> To: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>;
> linux-arm-kernel@lists.infradead.org; linux-acpi@vger.kernel.org;
> iommu@lists.linux-foundation.org; devel@acpica.org
> Cc: linuxarm@huawei.com; Lorenzo Pieralisi <Lorenzo.Pieralisi@arm.com>;
> joro@8bytes.org; Robin Murphy <Robin.Murphy@arm.com>;
> wanghuiqiang@huawei.com; jonathan.cameron@huawei.com
> Subject: [Devel] Re: [RFC PATCH 2/4] ACPI/IORT: Add support for RMR node
> parsing
> 
> Hi,
> 
> On Tue, 2020-10-27 at 11:26 +0000, Shameer Kolothum wrote:
> 
> ...
> 
> > @@ -1647,6 +1667,100 @@ static void __init iort_enable_acs(struct
> > acpi_iort_node *iort_node)
> >  #else
> >  static inline void iort_enable_acs(struct acpi_iort_node *iort_node)
> > { }
> >  #endif
> > +static int iort_rmr_desc_valid(struct acpi_iort_rmr_desc *desc)
> > +{
> > +	struct iort_rmr_entry *e;
> > +	u64 end, start = desc->base_address, length = desc->length;
> > +
> > +	if ((!IS_ALIGNED(start, SZ_64K)) || (length % SZ_64K != 0))
> 
> You could just do:
> 
> if ((!IS_ALIGNED(start, SZ_64K)) || (length % SZ_64K))
> 
> [SAMI] In my opinion, the following may be better:
> 	if (!IS_ALIGNED(start, SZ_64K) || !IS_ALIGNED(length, SZ_64K))
> [/SAMI]

Thanks for your suggestions. I don't have a strong opinion on either
of those, but will change it with the latter one for now.

Thanks,
Shameer

> Regards,
> 
> Sami Mujawar
> 
> David
> _______________________________________________
> Devel mailing list -- devel@acpica.org
> To unsubscribe send an email to devel-leave@acpica.org
> %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s

  reply index

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-27 11:26 [RFC PATCH 0/4] ACPI/IORT: Support for IORT RMR node Shameer Kolothum
2020-10-27 11:26 ` [RFC PATCH 1/4] ACPICA: IORT: Update for revision E Shameer Kolothum
     [not found]   ` <BYAPR11MB3256AFF743B4FCC400F4181C87160@BYAPR11MB3256.namprd11.prod.outlook.com>
     [not found]     ` <610c14ef56d64fe087ca52aede07d811@huawei.com>
     [not found]       ` <MWHPR11MB1599988D7C857E3AFFA4A48AF0170@MWHPR11MB1599.namprd11.prod.outlook.com>
2020-10-28 18:40         ` [Devel] " Shameerali Kolothum Thodi
2020-10-27 11:26 ` [RFC PATCH 2/4] ACPI/IORT: Add support for RMR node parsing Shameer Kolothum
2020-10-28 18:43   ` [Devel] " David E. Box
2020-11-09 12:29     ` [Devel] " Sami Mujawar
2020-11-19 12:07       ` Shameerali Kolothum Thodi [this message]
2020-10-27 11:26 ` [RFC PATCH 3/4] ACPI/IORT: Add RMR memory regions reservation helper Shameer Kolothum
2020-11-05 18:03   ` Robin Murphy
2020-11-06  8:30     ` Shameerali Kolothum Thodi
2020-11-06 13:06       ` Robin Murphy
2020-11-06 16:00         ` Shameerali Kolothum Thodi
2020-10-27 11:26 ` [RFC PATCH 4/4] iommu/dma: Reserve any RMR regions associated with a dev Shameer Kolothum
2020-10-28 16:43 ` [RFC PATCH 0/4] ACPI/IORT: Support for IORT RMR node Steven Price
2020-10-28 18:24   ` Shameerali Kolothum Thodi
2020-11-06 15:22     ` Steven Price
2020-11-06 16:17       ` Shameerali Kolothum Thodi
2020-11-06 16:26         ` Steven Price
2020-11-06 17:09           ` Robin Murphy

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