From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752899Ab1JQL3H (ORCPT ); Mon, 17 Oct 2011 07:29:07 -0400 Received: from mail-gx0-f174.google.com ([209.85.161.174]:43917 "EHLO mail-gx0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750802Ab1JQL3E (ORCPT ); Mon, 17 Oct 2011 07:29:04 -0400 From: Ohad Ben-Cohen To: Cc: , Laurent Pinchart , Joerg Roedel , David Woodhouse , , David Brown , Arnd Bergmann , , Hiroshi Doyu , Stepan Moskovchenko , KyongHo Cho , Ohad Ben-Cohen Subject: [PATCH v4 3/7] iommu/omap: announce supported page sizes Date: Mon, 17 Oct 2011 13:27:22 +0200 Message-Id: <1318850846-16066-4-git-send-email-ohad@wizery.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1318850846-16066-1-git-send-email-ohad@wizery.com> References: <1318850846-16066-1-git-send-email-ohad@wizery.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Let the IOMMU core know we support 4KiB, 64KiB, 1MiB and 16MiB page sizes. This way the IOMMU core can split any arbitrary-sized physically contiguous regions (that it needs to map) as needed. Signed-off-by: Ohad Ben-Cohen Cc: Hiroshi DOYU --- drivers/iommu/omap-iommu.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c index 1bb2971..1692b6a 100644 --- a/drivers/iommu/omap-iommu.c +++ b/drivers/iommu/omap-iommu.c @@ -33,6 +33,9 @@ (__i < (n)) && (cr = __iotlb_read_cr((obj), __i), true); \ __i++) +/* bitmap of the page sizes currently supported */ +#define OMAP_IOMMU_PGSIZES (SZ_4K | SZ_64K | SZ_1M | SZ_16M) + /** * struct omap_iommu_domain - omap iommu domain * @pgtable: the page table @@ -1207,6 +1210,7 @@ static struct iommu_ops omap_iommu_ops = { .unmap = omap_iommu_unmap, .iova_to_phys = omap_iommu_iova_to_phys, .domain_has_cap = omap_iommu_domain_has_cap, + .pgsize_bitmap = OMAP_IOMMU_PGSIZES, }; static int __init omap_iommu_init(void) -- 1.7.4.1