- 12 5月, 2011 1 次提交
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由 Laurent Pinchart 提交于
Commit d594f1f3 (omap: IOMMU: add support to callback during fault handling) broke interrupt line sharing between the OMAP3 ISP and its IOMMU. Because of this, every interrupt generated by the OMAP3 ISP is handled by the IOMMU driver instead of being passed to the OMAP3 ISP driver. Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: NHiroshi DOYU <Hiroshi.DOYU@nokia.com> Signed-off-by: NTony Lindgren <tony@atomide.com>
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- 15 3月, 2011 1 次提交
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由 Aaro Koskinen 提交于
request_mem_region() error exit will leak ioremapped memory. Fix this by moving the ioremap() after request_mem_region(), which is the proper order to do this anyway. Signed-off-by: NAaro Koskinen <aaro.koskinen@nokia.com> Signed-off-by: NTony Lindgren <tony@atomide.com>
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- 25 2月, 2011 3 次提交
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由 David Cohen 提交于
Add support to register an isr for IOMMU fault situations and adapt it to allow such (*isr)() to be used as fault callback. Drivers using IOMMU module might want to be informed when errors happen in order to debug it or react. Signed-off-by: NDavid Cohen <dacohen@gmail.com> Acked-by: NHiroshi DOYU <Hiroshi.DOYU@nokia.com> Signed-off-by: NTony Lindgren <tony@atomide.com>
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由 David Cohen 提交于
OMAP IOMMU generic layer doesn't need ot print function name during error messages. Print module name instead which is more useful. Signed-off-by: NDavid Cohen <dacohen@gmail.com> Signed-off-by: NTony Lindgren <tony@atomide.com>
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由 Martin Hostettler 提交于
In a modular build of the iommu code it's possible that the arch iommu code isn't loaded when trying to enable the iommu. Instead of blindly following a null pointer return -NODEV in that case. Signed-off-by: NMartin Hostettler <martin@neutronstar.dyndns.org> Signed-off-by: NTony Lindgren <tony@atomide.com>
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- 16 12月, 2010 1 次提交
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由 Guzman Lugo, Fernando 提交于
Some IOMMUs cannot use the whole 0x0 - 0xFFFFFFFF range. With this new API the valid range can be set. Signed-off-by: NFernando Guzman Lugo <x0095840@ti.com> Acked-by: NHiroshi DOYU <Hiroshi.DOYU@nokia.com>
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- 06 10月, 2010 1 次提交
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由 Hari Kanigeri 提交于
The flush_iotlb_page is not loading the cam register before flushing the cam entry. This causes wrong entry to be flushed out from the TLB, and if the entry happens to be a locked TLB entry it would lead to MMU faults. The fix is to load the cam register with the address to be flushed before flushing the TLB entry. Signed-off-by: NHari Kanigeri <h-kanigeri2@ti.com> Acked-by: NHiroshi DOYU <Hiroshi.DOYU@nokia.com> Signed-off-by: NTony Lindgren <tony@atomide.com>
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- 29 6月, 2010 3 次提交
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由 Hiroshi DOYU 提交于
The function prefix "omap2_iommu_" indicates that the prefixed function belongs to "omap2_iommu_ops" to provide iommu basic functionalities for the above layers. It's better to avoid the prefixed function called in the same prefixed ones internally, like nested here. Now "iommu_disable" is called just after fault_isr() in the above layer. This is a little bit more sensible to keep the consistency of module layers. Signed-off-by: NHiroshi DOYU <Hiroshi.DOYU@nokia.com>
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由 Kanigeri, Hari 提交于
In order to enable TLB miss interrupt, the TWL should be disabled. This patch provides the functionality to get the MMU fault interrupt for a TLB miss in the cases where the users are working with the locked TLB entries and with TWL disabled. New interface is added to select twl and to enable TLB miss interrupt. Signed-off-by: NHari Kanigeri <h-kanigeri2@ti.com> Signed-off-by: NRamesh Gupta <grgupta@ti.com> Signed-off-by: NHiroshi Doyu <Hiroshi.DOYU@nokia.com>
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由 Hiroshi DOYU 提交于
A bit more strict comparison. Signed-off-by: NHiroshi DOYU <Hiroshi.DOYU@nokia.com>
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- 14 5月, 2010 3 次提交
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由 Hiroshi DOYU 提交于
This rejects unaligned device virtual address('da') and physical address('pa') and informs error to caller when a page table entry is set. Otherwise, a wrong address can be used by IO device. Signed-off-by: NHiroshi DOYU <Hiroshi.DOYU@nokia.com> Cc: Hari Kanigeri <h-kanigeri2@ti.com>
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由 Hiroshi DOYU 提交于
There are some places to scan iotlb entries. This iteration macro could make these code a bit simpler with proceeding iotlb entries transparently. Signed-off-by: NHiroshi DOYU <Hiroshi.DOYU@nokia.com> Tested-by: NHari Kanigeri <h-kanigeri2@ti.com>
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由 Kanigeri, Hari 提交于
This patch adds TLB preservation support to IOMMU module Signed-off-by: NHari Kanigeri <h-kanigeri2@ti.com> Signed-off-by: NHiroshi DOYU <Hiroshi.DOYU@nokia.com>
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- 30 3月, 2010 1 次提交
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由 Tejun Heo 提交于
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: NTejun Heo <tj@kernel.org> Guess-its-ok-by: NChristoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
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- 16 2月, 2010 2 次提交
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由 Hiroshi DOYU 提交于
There was a potential risk that the following "memset" could override its range if a given address was not the 1st entry of a largepage. This is not the case for "iovmm". Reported-by: NHari Nagalla <hnagalla@ti.com> Signed-off-by: NHiroshi DOYU <Hiroshi.DOYU@nokia.com> Signed-off-by: NHari Nagalla <hnagalla@ti.com> Signed-off-by: NTony Lindgren <tony@atomide.com>
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由 Hiroshi DOYU 提交于
There was a potential risk that the following "memset" could override its range if a given address was not the 1st entry of a supersection. This is not the case for "iovmm". Signed-off-by: NHiroshi DOYU <Hiroshi.DOYU@nokia.com> Signed-off-by: NHari Nagalla <hnagalla@ti.com> Signed-off-by: NTony Lindgren <tony@atomide.com>
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- 09 1月, 2010 1 次提交
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由 Roel Kluin 提交于
obj can't be both NULL and be an error pointer. Signed-off-by: NRoel Kluin <roel.kluin@gmail.com> Signed-off-by: NTony Lindgren <tony@atomide.com>
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- 23 10月, 2009 1 次提交
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由 Hiroshi DOYU 提交于
A bit (2 << 0) is set both on SECTION and SUPERSECTION. To identify SUPERSECTION correctly, other bits should be compared too. Reported-by: N"Srinivas Pulukuru" <srinivas.pulukuru@ti.com> Signed-off-by: NHiroshi DOYU <Hiroshi.DOYU@nokia.com> Signed-off-by: NTony Lindgren <tony@atomide.com>
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- 21 10月, 2009 1 次提交
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由 Tony Lindgren 提交于
Move the remaining headers under plat-omap/include/mach to plat-omap/include/plat. Also search and replace the files using these headers to include using the right path. This was done with: #!/bin/bash mach_dir_old="arch/arm/plat-omap/include/mach" plat_dir_new="arch/arm/plat-omap/include/plat" headers=$(cd $mach_dir_old && ls *.h) omap_dirs="arch/arm/*omap*/ \ drivers/video/omap \ sound/soc/omap" other_files="drivers/leds/leds-ams-delta.c \ drivers/mfd/menelaus.c \ drivers/mfd/twl4030-core.c \ drivers/mtd/nand/ams-delta.c" for header in $headers; do old="#include <mach\/$header" new="#include <plat\/$header" for dir in $omap_dirs; do find $dir -type f -name \*.[chS] | \ xargs sed -i "s/$old/$new/" done find drivers/ -type f -name \*omap*.[chS] | \ xargs sed -i "s/$old/$new/" for file in $other_files; do sed -i "s/$old/$new/" $file done done for header in $(ls $mach_dir_old/*.h); do git mv $header $plat_dir_new/ done Signed-off-by: NTony Lindgren <tony@atomide.com>
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- 29 8月, 2009 1 次提交
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由 Hiroshi DOYU 提交于
This enables to peek the following data. $ /debug/iommu/isp# ls mem nr_tlb_entries regs mmap pagetable tlb $ /debug/iommu/isp# head pagetable L: da: pa: ----------------------------------------- 2: 00001000 8ae4a002 2: 00002000 8e7bb002 2: 00003000 8ae49002 2: 00004000 8ae65002 ..... Signed-off-by: NHiroshi DOYU <Hiroshi.DOYU@nokia.com> Signed-off-by: NTony Lindgren <tony@atomide.com>
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- 23 6月, 2009 1 次提交
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由 Fernando Guzman Lugo 提交于
The function flush_iotlb_page is not loading the CAM register with the correct entry to be flushed, so it is flushing other entry Signed-off-by: NFernando Guzman Lugo <x0095840@ti.com> Signed-off-by: NHiroshi DOYU <Hiroshi.DOYU@nokia.com> Signed-off-by: NTony Lindgren <tony@atomide.com>
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- 05 5月, 2009 1 次提交
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由 Hiroshi DOYU 提交于
This patch provides: - iotlb_*() : iommu tlb operations - iopgtable_*() : iommu pagetable(twl) operations - iommu_*() : the other generic operations and the entry points to register and acquire iommu object. Signed-off-by: NHiroshi DOYU <Hiroshi.DOYU@nokia.com>
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