From: mitchelh@codeaurora.org (Mitchel Humpherys) Date: Thu, 07 Apr 2016 12:29:59 -0700 Subject: [PATCH 1/2] iommu: Support dynamic pgsize_bitmap In-Reply-To: <5704E937.3020602@arm.com> (Robin Murphy's message of "Wed, 6 Apr 2016 11:47:19 +0100") References: <1459890090-16040-1-git-send-email-mitchelh@codeaurora.org> <5704E937.3020602@arm.com> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Wed, Apr 06 2016 at 11:47:19 AM, Robin Murphy wrote: > How would you handle said restriction of page sizes under this scheme? I have a custom io-pgtable implementation that gets wired up based on an IOMMU domain attribute, which is set by yet another custom DMA mapper. My main goal is to give clients a way to specify the page table format they want to use. It's a bit of a mess but hopefully I can clean it up and send it out soon. > I'll clean up what I have and try to get it posted this afternoon so > we can compare. Cool, I have some comments that I'll leave over there. -Mitch -- Qualcomm Innovation Center, Inc. The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project