From mboxrd@z Thu Jan 1 00:00:00 1970 From: 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> References: <1318850846-16066-1-git-send-email-ohad@wizery.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1318850846-16066-1-git-send-email-ohad@wizery.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: iommu@lists.linux-foundation.org Cc: Ohad Ben-Cohen , KyongHo Cho , Arnd Bergmann , Joerg Roedel , linux-kernel@vger.kernel.org, Stepan Moskovchenko , Laurent Pinchart , David Brown , linux-omap@vger.kernel.org, David Woodhouse , linux-arm-kernel@lists.infradead.org, Hiroshi Doyu List-Id: linux-omap@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