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* iommu/omap: Fix -Woverflow warnings when compiling on 64-bit architecturesKrzysztof Kozlowski2020-03-041-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | Although the OMAP IOMMU driver supports only ARMv7 (32-bit) platforms, it can be compile tested for other architectures, including 64-bit ones. In such case the warning appears: In file included from drivers/iommu/omap-iommu.c:33:0: drivers/iommu/omap-iommu.c: In function 'omap_iommu_iova_to_phys': >> drivers/iommu/omap-iopgtable.h:44:21: warning: large integer implicitly truncated to unsigned type [-Woverflow] #define IOPTE_MASK (~(IOPTE_SIZE - 1)) ^ >> drivers/iommu/omap-iommu.c:1641:41: note: in expansion of macro 'IOPTE_MASK' ret = omap_iommu_translate(*pte, da, IOPTE_MASK); ^~~~~~~~~~ Fix this by using architecture-depending types in omap_iommu_translate(): 1. Pointer should be cast to unsigned long, 2. Virtual addresses should be cast to dma_addr_t. On 32-bit this will be the same as original code (using u32). On 64-bit it should produce meaningful result, although it does not really matter. Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Joerg Roedel <jroedel@suse.de>
* treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner2019-06-191-4/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* iommu/omap: Use BIT(x) macros in omap-iopgtable.hSuman Anna2015-08-031-10/+12
| | | | | | | | | | | | | Switch to using the BIT(x) macros in omap-iopgtable.h where possible. This eliminates the following checkpatch check warning: "CHECK: Prefer using the BIT macro" A couple of macros that used zero bit shifting are defined directly to avoid the above warning on one of the macros. Signed-off-by: Suman Anna <s-anna@ti.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
* iommu/omap: Protect omap-iopgtable.h against double inclusionSuman Anna2015-08-031-0/+5
| | | | | | | | | Protect the omap-pgtable.h header against double inclusion in source code by using the standard include guard mechanism. Signed-off-by: Suman Anna <s-anna@ti.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
* iommu/omap: Move to_iommu definition from omap-iopgtable.hSuman Anna2014-04-161-3/+0
| | | | | | | | | | The to_iommu definition is used only locally to the omap-iommu.c source file, and it has nothing to do with the page attributes defined in omap-iopgtable.h. So, move the definition out of omap-iopgtable.h header file. Signed-off-by: Suman Anna <s-anna@ti.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
* drivers/iommu/omap-iopgtable.h: remove unneeded cast of void*Jingoo Han2013-11-131-1/+1
| | | | | | | | Signed-off-by: Jingoo Han <jg1.han@samsung.com> Cc: Joerg Roedel <joro@8bytes.org> Cc: Tony Lindgren <tony@atomide.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* iommu/omap: fix checkpatch warnings in omap iommu codeSuman Anna2013-06-201-1/+1
| | | | | | | | This patch fixes the checkpatch warnings in omap iommu code, most of them are related to broken strings. Signed-off-by: Suman Anna <s-anna@ti.com> Signed-off-by: Joerg Roedel <joro@8bytes.org>
* ARM: OMAP2+: Move iommu2 to drivers/iommu/omap-iommu2.cTony Lindgren2012-11-201-22/+0
| | | | | | | | | | | | | | | | | This file should not be in arch/arm. Move it to drivers/iommu to allow making most of the header local to drivers/iommu. This is needed as we are removing plat and mach includes from drivers for ARM common zImage support. Cc: Ido Yariv <ido@wizery.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Mauro Carvalho Chehab <mchehab@infradead.org> Cc: Omar Ramirez Luna <omar.luna@linaro.org> Cc: linux-media@vger.kernel.org Acked-by: Ohad Ben-Cohen <ohad@wizery.com> Acked-by: Joerg Roedel <joro@8bytes.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: OMAP2+: Move iopgtable header to drivers/iommu/Ido Yariv2012-11-201-0/+120
The iopgtable header file is only used by the iommu & iovmm drivers, so move it to drivers/iommu/, as part of the single zImage effort. Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Mauro Carvalho Chehab <mchehab@infradead.org> Cc: Omar Ramirez Luna <omar.luna@linaro.org> Signed-off-by: Ido Yariv <ido@wizery.com> Acked-by: Ohad Ben-Cohen <ohad@wizery.com> Acked-by: Joerg Roedel <joro@8bytes.org> [tony@atomide.com: updated to be earlier in the series] Signed-off-by: Tony Lindgren <tony@atomide.com>