From: Fenghua Yu <fenghua.yu@intel.com>
To: Thomas Gleixner <tglx@linutronix.de>,
Joerg Roedel <joro@8bytes.org>, Ingo Molnar <mingo@redhat.com>,
Borislav Petkov <bp@alien8.de>,
Peter Zijlstra <peterz@infradead.org>,
H Peter Anvin <hpa@zytor.com>,
David Woodhouse <dwmw2@infradead.org>,
Lu Baolu <baolu.lu@linux.intel.com>,
Felix Kuehling <Felix.Kuehling@amd.com>,
Dave Hansen <dave.hansen@intel.com>,
Tony Luck <tony.luck@intel.com>,
Jean-Philippe Brucker <jean-philippe@linaro.org>,
Christoph Hellwig <hch@infradead.org>,
Ashok Raj <ashok.raj@intel.com>,
Jacob Jun Pan <jacob.jun.pan@intel.com>,
Dave Jiang <dave.jiang@intel.com>,
Sohil Mehta <sohil.mehta@intel.com>,
Ravi V Shankar <ravi.v.shankar@intel.com>
Cc: iommu@lists.linux-foundation.org, x86 <x86@kernel.org>,
linux-kernel <linux-kernel@vger.kernel.org>,
amd-gfx <amd-gfx@lists.freedesktop.org>
Subject: Re: [PATCH v5 00/12] x86: tag application address space for devices
Date: Tue, 7 Jul 2020 14:30:44 -0700 [thread overview]
Message-ID: <20200707213043.GG32961@romley-ivt3.sc.intel.com> (raw)
In-Reply-To: <1593560682-40814-1-git-send-email-fenghua.yu@intel.com>
Hi, Thomas, Joerg, Boris, Ingo, Baolu, and x86/iommu maintainers,
On Tue, Jun 30, 2020 at 04:44:30PM -0700, Fenghua Yu wrote:
> Typical hardware devices require a driver stack to translate application
> buffers to hardware addresses, and a kernel-user transition to notify the
> hardware of new work. What if both the translation and transition overhead
> could be eliminated? This is what Shared Virtual Address (SVA) and ENQCMD
> enabled hardware like Data Streaming Accelerator (DSA) aims to achieve.
> Applications map portals in their local-address-space and directly submit
> work to them using a new instruction.
>
Any comment on this series? Updated patch 1 with minor changes was sent out
on the same patch 1 thread and was Acked-by Felix Kuehling. If you want me
to send the whole series with the minor changes or any other changes, please
let me know.
Any plan to push the patches into your tree and upstream?
Thanks.
-Fenghua
_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu
prev parent reply other threads:[~2020-07-07 21:30 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-30 23:44 [PATCH v5 00/12] x86: tag application address space for devices Fenghua Yu
2020-06-30 23:44 ` [PATCH v5 01/12] iommu: Change type of pasid to u32 Fenghua Yu
2020-07-01 2:12 ` Felix Kuehling
2020-07-02 19:10 ` Fenghua Yu
2020-07-03 5:32 ` Felix Kuehling
2020-06-30 23:44 ` [PATCH v5 02/12] iommu/vt-d: Change flags type to unsigned int in binding mm Fenghua Yu
2020-06-30 23:44 ` [PATCH v5 03/12] docs: x86: Add documentation for SVA (Shared Virtual Addressing) Fenghua Yu
2020-06-30 23:44 ` [PATCH v5 04/12] x86/cpufeatures: Enumerate ENQCMD and ENQCMDS instructions Fenghua Yu
2020-06-30 23:44 ` [PATCH v5 05/12] x86/fpu/xstate: Add supervisor PASID state for ENQCMD feature Fenghua Yu
2020-06-30 23:44 ` [PATCH v5 06/12] x86/msr-index: Define IA32_PASID MSR Fenghua Yu
2020-06-30 23:44 ` [PATCH v5 07/12] mm: Define pasid in mm Fenghua Yu
2020-06-30 23:44 ` [PATCH v5 08/12] fork: Clear PASID for new mm Fenghua Yu
2020-06-30 23:44 ` [PATCH v5 09/12] x86/process: Clear PASID state for a newly forked/cloned thread Fenghua Yu
2020-06-30 23:44 ` [PATCH v5 10/12] x86/mmu: Allocate/free PASID Fenghua Yu
2020-06-30 23:44 ` [PATCH v5 11/12] sched: Define and initialize a flag to identify valid PASID in the task Fenghua Yu
2020-06-30 23:44 ` [PATCH v5 12/12] x86/traps: Fix up invalid PASID Fenghua Yu
2020-07-07 21:30 ` Fenghua Yu [this message]
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