From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757593Ab1KRKIk (ORCPT ); Fri, 18 Nov 2011 05:08:40 -0500 Received: from ganesha.gnumonks.org ([213.95.27.120]:40921 "EHLO ganesha.gnumonks.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757204Ab1KRKIh (ORCPT ); Fri, 18 Nov 2011 05:08:37 -0500 From: KyongHo Cho To: linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, Younglak Kim Cc: Joerg Roedel , Sanghyun Lee , Kukjin Kim Subject: [PATCH v7 0/2] iommu/exynos: Add IOMMU/System MMU driver for Samsung Exynos Date: Fri, 18 Nov 2011 18:47:28 +0900 Message-Id: <1321609650-1329-1-git-send-email-pullip.cho@samsung.com> X-Mailer: git-send-email 1.7.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Changes since v6: - Totally rewrite exynos_iommu_map() and exynos_iommu_unmap() according to the change in iommu_map() and iommu_unmap(). - Change special slab for Lv2 page table to kmalloc(). Changes since v5: - Relation between device and a domain become n:1 (Joerg's comment) - Implements iommu_commit(). Changes since v4: - exynos_iommu_unmap()returns unmapped size in page order (Ohad Ben-Cohen's comment) - Fixed typo error of resource names - Fixed missing #include in arch/arm/mach-exynos4/mach-armlex4210.c Changes since v3: - Used DEFINE_RES_MEM and DEFINE_RES_IRQ macros to define resources of System MMU (Russell King's comment) - Fixed removal of CONFIG_S5P_SLEEP definition (Sylwester Nawrocki's comment) Changes since v2: - Add lock for System MMU private data. And fixes the following problems pointed by Joerg Rodel: - Fix wrong argument to kmalloc() and get_free_pages() - Merged patches into 2 due to bisectability Changes since v1: Fixes of the following problems pointed by Russell King.: - Missing unlocking a spinlock in exynos_iommu_attach_dev(). - atomic_t -> int in sysmmu_drvdata.activations - sysmmu_platdata -> sysmmu_drvdata - Change in error messages in irq handler - Removed casting in format of error message - omap_iommu_ops -> exynos_iommu_ops in the last patch Patch Summary: [PATCH v7 1/2] ARM: EXYNOS: Change System MMU platform device definitions [PATCH v7 2/2] iommu/exynos: Add iommu driver for Exynos Platforms The first patche enhances System MMU platform device definition: - Removed System MMU for MDMA0 in TOP block because it is not used. Use MDMA2 in LCD block. - Removed System MMU ID. Instead, a System MMU is bound to a device that the System MMU is dedicated during machin initialization. If a device driver wants to handle System MMU, it must bind its device with System MMU with sysmmu_set_owner(). - clkdev The last patch implements IOMMU API: - System MMU device driver is removed from arch/arm/plat-s5p to move it to driver/iommu directory. - Implements IOMMU API and System MMU driver that is moved from arch/arm/plat-s5p. - Implements fault handling that is suggested by Ohad. - Used bus_set_iommu instead of register_iommu that is suggested by Joerg. - Implements iommu_commit(). Diffstat: arch/arm/mach-exynos/Kconfig | 2 + arch/arm/mach-exynos/clock-exynos4210.c | 16 + arch/arm/mach-exynos/clock.c | 55 +- arch/arm/mach-exynos/dev-sysmmu.c | 272 ++----- arch/arm/mach-exynos/include/mach/dev-sysmmu.h | 61 ++ arch/arm/mach-exynos/include/mach/exynos4-clock.h | 1 + arch/arm/mach-exynos/include/mach/map.h | 3 +- arch/arm/mach-exynos/include/mach/regs-sysmmu.h | 26 +- arch/arm/mach-exynos/include/mach/sysmmu.h | 46 - arch/arm/mach-exynos/mach-armlex4210.c | 1 - arch/arm/mach-exynos/mach-nuri.c | 40 + arch/arm/mach-exynos/mach-origen.c | 42 + arch/arm/mach-exynos/mach-smdk4x12.c | 9 + arch/arm/mach-exynos/mach-smdkv310.c | 43 +- arch/arm/mach-exynos/mach-universal_c210.c | 42 + arch/arm/plat-s5p/Kconfig | 8 - arch/arm/plat-s5p/Makefile | 1 - arch/arm/plat-s5p/sysmmu.c | 312 ------- arch/arm/plat-samsung/include/plat/devs.h | 1 - arch/arm/plat-samsung/include/plat/sysmmu.h | 95 -- drivers/iommu/Kconfig | 12 + drivers/iommu/Makefile | 1 + drivers/iommu/exynos-iommu.c | 958 +++++++++++++++++++++ 23 files changed, 1327 insertions(+), 720 deletions(-)