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From: "Gupta, Nipun" <Nipun.Gupta@amd.com>
To: "Yigit, Ferruh" <Ferruh.Yigit@amd.com>,
	"dev@dpdk.org" <dev@dpdk.org>,
	"thomas@monjalon.net" <thomas@monjalon.net>,
	"david.marchand@redhat.com" <david.marchand@redhat.com>
Cc: "Anand, Harpreet" <harpreet.anand@amd.com>,
	"Agarwal, Nikhil" <nikhil.agarwal@amd.com>
Subject: RE: [PATCH v3 5/5] config/arm: add AMD CDX
Date: Mon, 8 May 2023 10:24:10 +0000	[thread overview]
Message-ID: <CH3PR12MB8308CA03F8AF1DEE0FC9B6BCE8719@CH3PR12MB8308.namprd12.prod.outlook.com> (raw)
In-Reply-To: <54328b0c-584e-dc58-2559-9d30e089a66a@amd.com>



> -----Original Message-----
> From: Yigit, Ferruh <Ferruh.Yigit@amd.com>
> Sent: Thursday, May 4, 2023 8:59 PM
> To: Gupta, Nipun <Nipun.Gupta@amd.com>; dev@dpdk.org;
> thomas@monjalon.net; david.marchand@redhat.com
> Cc: Anand, Harpreet <harpreet.anand@amd.com>; Agarwal, Nikhil
> <nikhil.agarwal@amd.com>
> Subject: Re: [PATCH v3 5/5] config/arm: add AMD CDX
> 
> On 4/21/2023 3:54 PM, Nipun Gupta wrote:
> > Adding support for AMD CDX devices
> >
> > Signed-off-by: Nipun Gupta <nipun.gupta@amd.com>
> > ---
> >  config/arm/arm64_cdx_linux_gcc | 17 +++++++++++++++++
> >  config/arm/meson.build         | 14 ++++++++++++++
> >  2 files changed, 31 insertions(+)
> >  create mode 100644 config/arm/arm64_cdx_linux_gcc
> >
> > diff --git a/config/arm/arm64_cdx_linux_gcc
> b/config/arm/arm64_cdx_linux_gcc
> > new file mode 100644
> > index 0000000000..8e6d619dae
> > --- /dev/null
> > +++ b/config/arm/arm64_cdx_linux_gcc
> > @@ -0,0 +1,17 @@
> > +[binaries]
> > +c = ['ccache', 'aarch64-linux-gnu-gcc']
> > +cpp = ['ccache', 'aarch64-linux-gnu-g++']
> > +ar = 'aarch64-linux-gnu-ar'
> > +as = 'aarch64-linux-gnu-as'
> > +strip = 'aarch64-linux-gnu-strip'
> > +pkgconfig = 'aarch64-linux-gnu-pkg-config'
> > +pcap-config = ''
> > +
> > +[host_machine]
> > +system = 'linux'
> > +cpu_family = 'aarch64'
> > +cpu = 'armv8-a'
> > +endian = 'little'
> > +
> > +[properties]
> > +platform = 'cdx'
> > diff --git a/config/arm/meson.build b/config/arm/meson.build
> > index 5213434ca4..39b8929534 100644
> > --- a/config/arm/meson.build
> > +++ b/config/arm/meson.build
> > @@ -305,6 +305,18 @@ soc_bluefield = {
> >      'numa': false
> >  }
> >
> > +soc_cdx = {
> > +    'description': 'AMD CDX',
> > +    'implementer': '0x41',
> > +    'part_number': '0xd42',
> > +    'flags': [
> > +        ['RTE_MACHINE', '"cdx"'],
> > +        ['RTE_MAX_LCORE', 16],
> > +        ['RTE_MAX_NUMA_NODES', 1]
> > +    ],
> > +    'numa': false
> > +}
> 
> Hi Nipun,
> 
> Why we need a new arm platform/config? Is it because of above flags?
> If it can work with default values, I think we can drop this patch.

Hi Ferruh,

CDX driver works with generic ARM compilation too (arm64_armv8_linux_gcc).

The versal platforms supporting CDX have A78 cores, and adding this cdx config
Helps to provide gcc option "march= armv8.4-a" which is for implementer
"0xd42" (ARM cortex A78 cores)., whereas for generic ARM compilation
"march= armv8-a".

Maybe ARM guys can provide more information regarding if there is any impact
on using generic architecture flag (i.e. march= armv8a) on A78 cores.

Thanks,
Nipun

  reply	other threads:[~2023-05-08 10:24 UTC|newest]

Thread overview: 102+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-24 14:07 [RFC PATCH 0/6] add support for CDX bus Nipun Gupta
2023-01-24 14:07 ` [RFC PATCH 1/6] bus/cdx: introduce cdx bus Nipun Gupta
2023-01-24 14:07 ` [RFC PATCH 2/6] bus/cdx: add dma map and unmap support Nipun Gupta
2023-01-24 14:07 ` [RFC PATCH 3/6] bus/cdx: add support for MSI Nipun Gupta
2023-01-24 14:07 ` [RFC PATCH 4/6] bus/cdx: support plug unplug and dev iterator Nipun Gupta
2023-01-24 14:07 ` [RFC PATCH 5/6] bus: enable cdx bus Nipun Gupta
2023-01-24 14:07 ` [RFC PATCH 6/6] config/arm: add AMD CDX Nipun Gupta
2023-04-07  6:01 ` [PATCH 0/6] add support for CDX bus Nipun Gupta
2023-04-07  6:01   ` [PATCH 1/6] bus/cdx: introduce cdx bus Nipun Gupta
2023-04-07  6:01   ` [PATCH 2/6] bus/cdx: add dma map and unmap support Nipun Gupta
2023-04-07  6:01   ` [PATCH 3/6] bus/cdx: add support for MSI Nipun Gupta
2023-04-07  6:01   ` [PATCH 4/6] bus/cdx: support plug unplug and dev iterator Nipun Gupta
2023-04-07  6:01   ` [PATCH 5/6] bus: enable cdx bus Nipun Gupta
2023-04-07  6:01   ` [PATCH 6/6] config/arm: add AMD CDX Nipun Gupta
2023-04-07  7:18   ` [PATCH 0/6] add support for CDX bus David Marchand
2023-04-07  7:29     ` Nipun Gupta
2023-04-13 13:25       ` Gupta, Nipun
2023-04-13 13:26 ` [PATCH v2 " Nipun Gupta
2023-04-13 13:26   ` [PATCH v2 1/6] bus/cdx: introduce cdx bus Nipun Gupta
2023-04-14 16:45     ` Ferruh Yigit
2023-04-16  9:20       ` Gupta, Nipun
2023-04-13 13:27   ` [PATCH v2 2/6] bus/cdx: add dma map and unmap support Nipun Gupta
2023-04-13 13:27   ` [PATCH v2 3/6] bus/cdx: add support for MSI Nipun Gupta
2023-04-14 16:45     ` Ferruh Yigit
2023-04-16  9:20       ` Gupta, Nipun
2023-04-13 13:27   ` [PATCH v2 4/6] bus/cdx: support plug unplug and dev iterator Nipun Gupta
2023-04-13 13:27   ` [PATCH v2 5/6] bus: enable cdx bus Nipun Gupta
2023-04-14 16:45     ` Ferruh Yigit
2023-04-16  9:21       ` Gupta, Nipun
2023-04-13 13:27   ` [PATCH v2 6/6] config/arm: add AMD CDX Nipun Gupta
2023-04-14 16:45   ` [PATCH v2 0/6] add support for CDX bus Ferruh Yigit
2023-04-21 14:54 ` [PATCH v3 0/5] Support AMD CDX bus, for FPGA based CDX devices. The CDX Nipun Gupta
2023-04-21 14:54   ` [PATCH v3 1/5] bus/cdx: introduce cdx bus Nipun Gupta
2023-04-21 14:54   ` [PATCH v3 2/5] bus/cdx: add DMA map and unmap support Nipun Gupta
2023-04-21 14:54   ` [PATCH v3 3/5] bus/cdx: add support for MSI Nipun Gupta
2023-04-21 14:54   ` [PATCH v3 4/5] bus/cdx: support plug unplug and dev iterator Nipun Gupta
2023-04-21 14:54   ` [PATCH v3 5/5] config/arm: add AMD CDX Nipun Gupta
2023-05-04 15:28     ` Ferruh Yigit
2023-05-08 10:24       ` Gupta, Nipun [this message]
2023-05-08 10:44         ` Thomas Monjalon
2023-05-08 10:48           ` Gupta, Nipun
2023-05-08 11:26         ` Ferruh Yigit
2023-05-08 17:16           ` Honnappa Nagarahalli
2023-05-08 17:47             ` Ferruh Yigit
2023-05-09  4:35               ` Gupta, Nipun
2023-05-09  5:55           ` Ruifeng Wang
2023-06-14 10:30             ` Ferruh Yigit
2023-06-15  7:00               ` Ruifeng Wang
2023-05-08 11:18 ` [PATCH v4 0/4] Support AMD CDX bus, for FPGA based CDX devices. The CDX Nipun Gupta
2023-05-08 11:18   ` [PATCH v4 1/4] bus/cdx: introduce cdx bus Nipun Gupta
2023-05-09  6:54     ` Xia, Chenbo
2023-05-09 11:09       ` Gupta, Nipun
2023-05-09 11:25         ` Ferruh Yigit
2023-05-10  1:29           ` Xia, Chenbo
2023-05-24 11:14     ` Thomas Monjalon
2023-05-24 17:04       ` Gupta, Nipun
2023-05-08 11:18   ` [PATCH v4 2/4] bus/cdx: add DMA map and unmap support Nipun Gupta
2023-05-08 11:18   ` [PATCH v4 3/4] bus/cdx: add support for MSI Nipun Gupta
2023-05-24 11:06     ` Thomas Monjalon
2023-05-24 17:06       ` Gupta, Nipun
2023-05-08 11:18   ` [PATCH v4 4/4] bus/cdx: support plug unplug and dev iterator Nipun Gupta
2023-05-12 10:25   ` [PATCH v4 0/4] Support AMD CDX bus, for FPGA based CDX devices. The CDX Ferruh Yigit
2023-05-25 10:08 ` [PATCH v5 0/5] Support AMD CDX bus Nipun Gupta
2023-05-25 10:08   ` [PATCH v5 1/5] bus/cdx: introduce " Nipun Gupta
2023-06-01 15:00     ` David Marchand
2023-06-01 18:10       ` Nipun Gupta
2023-06-05  8:04       ` Nipun Gupta
2023-05-25 10:08   ` [PATCH v5 2/5] bus/cdx: add DMA map and unmap support Nipun Gupta
2023-06-01 15:07     ` David Marchand
2023-05-25 10:08   ` [PATCH v5 3/5] eal/interrupts: add IRQ count in interrupt handle Nipun Gupta
2023-06-01 15:25     ` David Marchand
2023-06-01 18:04       ` Nipun Gupta
2023-06-01 18:18         ` Gupta, Nipun
2023-06-06  7:18     ` [EXT] " Harman Kalra
2023-06-06  7:27       ` Nipun Gupta
2023-06-07  5:45         ` Harman Kalra
2023-05-25 10:08   ` [PATCH v5 4/5] bus/cdx: add support for MSI Nipun Gupta
2023-06-01 15:09     ` David Marchand
2023-06-05  8:05       ` Nipun Gupta
2023-05-25 10:08   ` [PATCH v5 5/5] bus/cdx: support plug unplug and dev iterator Nipun Gupta
2023-06-05 13:26 ` [PATCH v6 0/4] Support AMD CDX bus Nipun Gupta
2023-06-05 13:26   ` [PATCH v6 1/4] bus/cdx: introduce " Nipun Gupta
2023-06-06  8:55     ` Thomas Monjalon
2023-06-05 13:26   ` [PATCH v6 2/4] bus/cdx: add DMA map and unmap support Nipun Gupta
2023-06-05 13:26   ` [PATCH v6 3/4] bus/cdx: add support for MSI Nipun Gupta
2023-06-06  9:30     ` David Marchand
2023-06-06  9:42       ` Nipun Gupta
2023-06-05 13:26   ` [PATCH v6 4/4] bus/cdx: support plug unplug and dev iterator Nipun Gupta
2023-06-06 10:02 ` [PATCH v7 0/4] Support AMD CDX bus Nipun Gupta
2023-06-06 10:02   ` [PATCH v7 1/4] bus/cdx: introduce " Nipun Gupta
2023-06-06 13:00     ` Thomas Monjalon
2023-06-06 13:38       ` Nipun Gupta
2023-06-06 13:43         ` Thomas Monjalon
2023-06-06 10:02   ` [PATCH v7 2/4] bus/cdx: add DMA map and unmap support Nipun Gupta
2023-06-06 10:02   ` [PATCH v7 3/4] bus/cdx: add support for MSI Nipun Gupta
2023-06-06 10:02   ` [PATCH v7 4/4] bus/cdx: support plug unplug and dev iterator Nipun Gupta
2023-06-07  4:24 ` [PATCH v8 0/4] Support AMD CDX bus Nipun Gupta
2023-06-07  4:24   ` [PATCH v8 1/4] bus/cdx: introduce " Nipun Gupta
2023-06-07  4:24   ` [PATCH v8 2/4] bus/cdx: add DMA map and unmap support Nipun Gupta
2023-06-07  4:24   ` [PATCH v8 3/4] bus/cdx: add support for MSI Nipun Gupta
2023-06-07  4:24   ` [PATCH v8 4/4] bus/cdx: support plug unplug and dev iterator Nipun Gupta
2023-06-07 13:36   ` [PATCH v8 0/4] Support AMD CDX bus Thomas Monjalon

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