From: "Leif Lindholm" <leif.lindholm@linaro.org>
To: "Chang, Abner (HPS SW/FW Technologist)" <abner.chang@hpe.com>
Cc: "devel@edk2.groups.io" <devel@edk2.groups.io>
Subject: Re: [edk2-devel] [edk2-staging/RISC-V-V2 PATCH v1 07/22]: MdePkg/BaseIoLibIntrinsic: RISC-V I/O intrinsic functions.
Date: Tue, 17 Sep 2019 15:14:19 +0100 [thread overview]
Message-ID: <20190917141419.GH28454@bivouac.eciton.net> (raw)
In-Reply-To: <CS1PR8401MB1192E0A6C0BEA012F9C66EF7FF8C0@CS1PR8401MB1192.NAMPRD84.PROD.OUTLOOK.COM>
On Mon, Sep 16, 2019 at 05:37:51AM +0000, Chang, Abner (HPS SW/FW Technologist) wrote:
> > -----Original Message-----
> > From: Leif Lindholm [mailto:leif.lindholm@linaro.org]
> > Sent: Thursday, September 5, 2019 10:28 PM
> > To: devel@edk2.groups.io; Chang, Abner (HPS SW/FW Technologist)
> > <abner.chang@hpe.com>
> > Subject: Re: [edk2-devel] [edk2-staging/RISC-V-V2 PATCH v1 07/22]:
> > MdePkg/BaseIoLibIntrinsic: RISC-V I/O intrinsic functions.
> >
> > On Wed, Sep 04, 2019 at 06:43:02PM +0800, Abner Chang wrote:
> > > RISC-V MMIO library instance. RISC-V only supports memory map I/O.
> > > However the first implementation of RISC-V EDK2 port uses PC/AT as the
> > > RISC-V platform spec. We have to keep the I/O functions as the temporary
> > solution.
> >
> > Can you expand on the I/O port situation?
> > Since the architecture doesn't support it, what do these functions do?
> >
> > For the pure MMIO ops using compliant C, we really don't need yet another
> > implementation pretending it's architecture specific. We should just have a
> > single IoLibMmio.c and an IoLibMmioNonCompliant.c if the x86 folks want to
> > keep their current one.
>
> Hmm. That was for the old RISC-V PC/AT QEUM version back to 2016. We
> pulled in some X86 peripherals to build up RISC-V PC/AT like
> platform . will remove this.
Excellent, thanks.
/
Leif
next prev parent reply other threads:[~2019-09-17 14:14 UTC|newest]
Thread overview: 71+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-04 10:42 [PATCH 00/22] RISC-V EDK2 Port on edk2-staging/RISC-V-V2 branch Abner Chang
2019-09-04 10:42 ` [edk2-staging/RISC-V-V2 PATCH v1 01/22]: RiscVPkg: RISC-V processor package Abner Chang
2019-09-04 17:51 ` [edk2-devel] " Leif Lindholm
2019-09-16 5:15 ` Abner Chang
2019-09-17 14:03 ` Leif Lindholm
2019-09-19 7:10 ` Abner Chang
2019-09-20 17:04 ` Leif Lindholm
2019-09-21 7:14 ` Abner Chang
2019-09-04 10:42 ` [edk2-staging/RISC-V-V2 PATCH v1 02/22]: RiscVPkg/Include: Add header files of RISC-V CPU package Abner Chang
2019-09-04 18:55 ` [edk2-devel] " Leif Lindholm
2019-09-16 4:02 ` Abner Chang
2019-09-17 13:54 ` Leif Lindholm
2019-09-19 6:58 ` Abner Chang
2019-09-04 10:42 ` [edk2-staging/RISC-V-V2 PATCH v1 03/22]: MdePkg: RISC-V sections in DEC file Abner Chang
2019-09-04 19:02 ` [edk2-devel] " Leif Lindholm
2019-09-16 5:16 ` Abner Chang
2019-09-16 9:17 ` Leif Lindholm
2019-09-04 10:42 ` [edk2-staging/RISC-V-V2 PATCH v1 04/22]: MdePkg/Include: RISC-V definitions Abner Chang
2019-09-04 20:40 ` [edk2-devel] " Leif Lindholm
2019-09-16 5:31 ` Abner Chang
2019-09-17 14:11 ` Leif Lindholm
2019-09-17 8:32 ` Abner Chang
2019-09-04 10:43 ` [edk2-staging/RISC-V-V2 PATCH v1 05/22]: MdeModulePkg/CapsuleRuntimeDxe: Add RISC-V arch Abner Chang
2019-09-04 10:43 ` [edk2-staging/RISC-V-V2 PATCH v1 6/22]: MdePkg/BaseCacheMaintenanceLib: RISC-V cache maintenance implementation Abner Chang
2019-09-04 20:49 ` [edk2-devel] " Leif Lindholm
2019-09-04 10:43 ` [edk2-staging/RISC-V-V2 PATCH v1 07/22]: MdePkg/BaseIoLibIntrinsic: RISC-V I/O intrinsic functions Abner Chang
2019-09-05 14:28 ` [edk2-devel] " Leif Lindholm
2019-09-16 5:37 ` Abner Chang
2019-09-17 14:14 ` Leif Lindholm [this message]
2019-09-04 10:43 ` [edk2-staging/RISC-V-V2 PATCH v1 08/22]: MdePkg/BasePeCoff: Add RISC-V PE/Coff related code Abner Chang
2019-09-05 14:38 ` [edk2-devel] " Leif Lindholm
2019-09-04 10:43 ` [edk2-staging/RISC-V-V2 PATCH v1 09/22]: MdePkg/BaseCpuLib: RISC-V Base CPU library implementation Abner Chang
2019-09-05 14:42 ` [edk2-devel] " Leif Lindholm
2019-09-04 10:43 ` [edk2-staging/RISC-V-V2 PATCH v1 10/22]: MdePkg/BaseSynchronizationLib: RISC-V cache related code Abner Chang
2019-09-05 14:51 ` [edk2-devel] " Leif Lindholm
2019-09-04 10:43 ` [edk2-staging/RISC-V-V2 PATCH v1 11/22]: BaseTools: BaseTools changes for RISC-V platform Abner Chang
2019-09-05 15:44 ` [edk2-devel] " Leif Lindholm
2019-09-16 6:44 ` Abner Chang
2019-09-17 12:15 ` Leif Lindholm
2019-09-09 11:36 ` Leif Lindholm
2019-09-16 7:46 ` Abner Chang
2019-09-17 13:08 ` Leif Lindholm
2019-09-17 14:26 ` Leif Lindholm
2019-09-04 10:43 ` [edk2-staging/RISC-V-V2 PATCH v1 12/22]: MdePkg/BaseLib: BaseLib for RISC-V RV64 Processor Abner Chang
2019-09-05 16:11 ` [edk2-devel] " Leif Lindholm
2019-09-04 10:43 ` [edk2-staging/RISC-V-V2 PATCH v1 13/22]: MdePkg/Include: Update SmBios header file Abner Chang
2019-09-05 16:16 ` [edk2-devel] " Leif Lindholm
2019-09-16 7:01 ` Abner Chang
2019-09-17 14:15 ` Leif Lindholm
[not found] ` <15C4D92300C8E997.28834@groups.io>
2019-09-17 6:58 ` Abner Chang
2019-09-04 10:43 ` [edk2-staging/RISC-V-V2 PATCH v1 14/22]: RiscVPkg/opesbi: Add opensbi-HOWTO.txt Abner Chang
2019-09-05 16:19 ` [edk2-devel] " Leif Lindholm
2019-09-04 10:43 ` [edk2-staging/RISC-V-V2 PATCH v1 15/22]: RiscVPkg/RealTimeClockRuntimeDxe: Add RISC-V RTC Runtime Driver Abner Chang
2019-09-05 16:26 ` [edk2-devel] " Leif Lindholm
2019-09-04 10:43 ` [edk2-staging/RISC-V-V2 PATCH v1 16/22]: RiscVPkg/CpuDxe: Add RISC-V CPU DXE driver Abner Chang
2019-09-05 16:28 ` [edk2-devel] " Leif Lindholm
2019-09-04 10:43 ` [edk2-staging/RISC-V-V2 PATCH v1 17/22]: RiscVPkg/SmbiosDxe: RISC-V platform generic SMBIOS " Abner Chang
2019-09-05 16:31 ` [edk2-devel] " Leif Lindholm
2019-09-04 10:43 ` [edk2-staging/RISC-V-V2 PATCH v1 18/22]: RiscVPkg/Library: Add/Update/Remove Library instances for RISC-V platform Abner Chang
2019-09-05 16:48 ` [edk2-devel] " Leif Lindholm
2019-09-04 10:43 ` [edk2-staging/RISC-V-V2 PATCH v1 19/22]: MdeModulePkg/DxeIplPeim:RISC-V platform DXEIPL Abner Chang
2019-09-05 16:50 ` [edk2-devel] " Leif Lindholm
2019-09-04 10:43 ` [edk2-staging/RISC-V-V2 PATCH v1 20/22]: MdeModulePkg/Logo Abner Chang
2019-09-05 16:51 ` [edk2-devel] " Leif Lindholm
2019-09-04 10:43 ` [edk2-staging/RISC-V-V2 PATCH v1 21/22]: NetworkPkg Abner Chang
2019-09-05 16:52 ` [edk2-devel] " Leif Lindholm
2019-09-04 10:43 ` [edk2-staging/RISC-V-V2 PATCH v1 22/22]: BaseTools/Scripts Abner Chang
2019-09-05 16:54 ` [edk2-devel] " Leif Lindholm
2019-09-05 17:15 ` [edk2-devel] [PATCH 00/22] RISC-V EDK2 Port on edk2-staging/RISC-V-V2 branch Leif Lindholm
2019-09-06 1:27 ` Abner Chang
[not found] ` <15C1B52667BA1578.25810@groups.io>
2019-09-23 1:15 ` Abner Chang
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