- 28 9月, 2011 1 次提交
-
-
由 Paul Bolle 提交于
There are numerous broken references to Documentation files (in other Documentation files, in comments, etc.). These broken references are caused by typo's in the references, and by renames or removals of the Documentation files. Some broken references are simply odd. Fix these broken references, sometimes by dropping the irrelevant text they were part of. Signed-off-by: NPaul Bolle <pebolle@tiscali.nl> Signed-off-by: NJiri Kosina <jkosina@suse.cz>
-
- 11 5月, 2011 1 次提交
-
-
由 Yinghai Lu 提交于
This workaround holds a dma32 buffer at early boot to prevent later bootmem allocations from stealing it in the case of large RAM configs. Now that x86 is using memblock, and the nobootmem wrapper does top-down allocation, it's no longer necessary, so remove it. Signed-off-by: NYinghai Lu <yinghai@kernel.org> Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>
-
- 27 8月, 2010 2 次提交
-
-
由 Konrad Rzeszutek Wilk 提交于
We remove all of the sub-platform detection/init routines and instead use on the .iommu_table array of structs to call the .early_init if .detect returned a positive value. Also we can stop detecting other IOMMUs if the IOMMU used the _FINISH type macro. During the 'pci_iommu_init' stage, we call .init for the second-stage initialization if it was defined. Currently only SWIOTLB has this defined and it used to de-allocate the SWIOTLB if the other detected IOMMUs have deemed it unnecessary to use SWIOTLB. Signed-off-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com> LKML-Reference: <1282845485-8991-11-git-send-email-konrad.wilk@oracle.com> CC: Fujita Tomonori <fujita.tomonori@lab.ntt.co.jp> CC: Thomas Gleixner <tglx@linutronix.de> CC: Ingo Molnar <mingo@redhat.com> Signed-off-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: NH. Peter Anvin <hpa@linux.intel.com>
-
由 Konrad Rzeszutek Wilk 提交于
In 'pci_swiotlb_detect' we used to do two different things: a). If user provided 'iommu=soft' or 'swiotlb=force' we would set swiotlb=1 and return 1 (and forcing pci-dma.c to call pci_swiotlb_init() immediately). b). If 4GB or more would be detected and if user did not specify iommu=off, we would set 'swiotlb=1' and return whatever 'a)' figured out. We simplify this by splitting a) and b) in two different routines. CC: Fujita Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com> LKML-Reference: <1282845485-8991-5-git-send-email-konrad.wilk@oracle.com> Signed-off-by: NH. Peter Anvin <hpa@linux.intel.com>
-
- 03 8月, 2010 1 次提交
-
-
由 Konrad Rzeszutek Wilk 提交于
It is paramount that we call pci_xen_swiotlb_detect before pci_swiotlb_detect as both implementations use the 'swiotlb' and 'swiotlb_force' flags. The pci-xen_swiotlb_detect inhibits the swiotlb_force and swiotlb flag so that the native SWIOTLB implementation is not enabled when running under Xen. [since v1 changed two Cc's to Acked-by] Signed-off-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com> Acked-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Acked-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> [http://lkml.org/lkml/2010/7/27/374] Cc: Albert Herranz <albert_herranz@yahoo.es> Cc: Ian Campbell <Ian.Campbell@citrix.com> Cc: Thomas Gleixner <tglx@linutronix.de> Acked-by: N"H. Peter Anvin" <hpa@zytor.com> [conditional http://lkml.org/lkml/2010/8/2/324] Cc: x86@kernel.org Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
-
- 30 3月, 2010 1 次提交
-
-
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>
-
- 11 2月, 2010 1 次提交
-
-
由 Yinghai Lu 提交于
64bit NUMA already make enough space under 4G with new early_node_mem. Signed-off-by: NYinghai Lu <yinghai@kernel.org> LKML-Reference: <1265793639-15071-16-git-send-email-yinghai@kernel.org> Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
-
- 05 2月, 2010 1 次提交
-
-
由 Justin P. Mattock 提交于
Signed-off-by: NJustin P. Mattock <justinmattock@gmail.com> Signed-off-by: NJiri Kosina <jkosina@suse.cz>
-
- 15 12月, 2009 1 次提交
-
-
由 FUJITA Tomonori 提交于
The commit f4780ca0 moves swiotlb initialization before dma32_free_bootmem(). It's supposed to fix a bug that the commit 75f1cdf1 introduced, we initialize SWIOTLB right after dma32_free_bootmem so we wrongly steal memory area allocated for GART with broken BIOS earlier. However, the above commit introduced another problem, which likely breaks machines with huge amount of memory. Such a box use the majority of DMA32_ZONE so there is no memory for swiotlb. With this patch, the x86 IOMMU initialization sequence are: 1. We set swiotlb to 1 in the case of (max_pfn > MAX_DMA32_PFN && !no_iommu). If swiotlb usage is forced by the boot option, we go to the step 3 and finish (we don't try to detect IOMMUs). 2. We call the detection functions of all the IOMMUs. The detection function sets x86_init.iommu.iommu_init to the IOMMU initialization function (so we can avoid calling the initialization functions of all the IOMMUs needlessly). 3. We initialize swiotlb (and set dma_ops to swiotlb_dma_ops) if swiotlb is set to 1. 4. If the IOMMU initialization function doesn't need swiotlb (e.g. the initialization is sucessful) then sets swiotlb to zero. 5. If we find that swiotlb is set to zero, we free swiotlb resource. Reported-by: NYinghai Lu <yinghai@kernel.org> Reported-by: NRoland Dreier <rdreier@cisco.com> Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> LKML-Reference: <20091215204729A.fujita.tomonori@lab.ntt.co.jp> Tested-by: NYinghai Lu <yinghai@kernel.org> Signed-off-by: NIngo Molnar <mingo@elte.hu>
-
- 14 12月, 2009 1 次提交
-
-
由 FUJITA Tomonori 提交于
The commit 75f1cdf1 introduced a bug that we initialize SWIOTLB right after dma32_free_bootmem so we wrongly steal memory area allocated for GART with broken BIOS earlier. This moves swiotlb initialization before dma32_free_bootmem(). Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: yinghai@kernel.org LKML-Reference: <1260759135-6450-2-git-send-email-fujita.tomonori@lab.ntt.co.jp> Signed-off-by: NIngo Molnar <mingo@elte.hu>
-
- 17 11月, 2009 1 次提交
-
-
由 FUJITA Tomonori 提交于
This kills bad_dma_address variable, the old mechanism to enable IOMMU drivers to make dma_mapping_error() work in IOMMU's specific way. bad_dma_address variable was introduced to enable IOMMU drivers to make dma_mapping_error() work in IOMMU's specific way. However, it can't handle systems that use both swiotlb and HW IOMMU. SO we introduced dma_map_ops->mapping_error to solve that case. Intel VT-d, GART, and swiotlb already use dma_map_ops->mapping_error. Calgary, AMD IOMMU, and nommu use zero for an error dma address. This adds DMA_ERROR_CODE and converts them to use it (as SPARC and POWER does). Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: NJesse Barnes <jbarnes@virtuousgeek.org> Cc: muli@il.ibm.com Cc: joerg.roedel@amd.com LKML-Reference: <1258287594-8777-3-git-send-email-fujita.tomonori@lab.ntt.co.jp> Signed-off-by: NIngo Molnar <mingo@elte.hu>
-
- 15 11月, 2009 1 次提交
-
-
由 FUJITA Tomonori 提交于
We set dma_ops to nommu_dma_ops at two different places for x86_32 and x86_64. This unifies them by setting dma_ops to nommu_dma_ops by default. Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> LKML-Reference: <1258199198-16657-2-git-send-email-fujita.tomonori@lab.ntt.co.jp> Signed-off-by: NIngo Molnar <mingo@elte.hu>
-
- 11 11月, 2009 1 次提交
-
-
由 FUJITA Tomonori 提交于
POWERPC doesn't expect it to be used. This fixes the linux-next build failure reported by Stephen Rothwell: lib/swiotlb.c: In function 'setup_io_tlb_npages': lib/swiotlb.c:114: error: 'swiotlb' undeclared (first use in this function) Reported-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: peterz@infradead.org LKML-Reference: <20091112000258F.fujita.tomonori@lab.ntt.co.jp> Signed-off-by: NIngo Molnar <mingo@elte.hu>
-
- 10 11月, 2009 8 次提交
-
-
由 Ingo Molnar 提交于
Most of the time x86_init.h is included in pci-dma.c - but not always, leading to this rare build failure: arch/x86/kernel/pci-dma.c:296: error: 'x86_init' undeclared (first use in this function) So include asm/x86_init.h explicitly. Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: chrisw@sous-sol.org Cc: dwmw2@infradead.org Cc: joerg.roedel@amd.com Cc: muli@il.ibm.com LKML-Reference: <1257849980-22640-2-git-send-email-fujita.tomonori@lab.ntt.co.jp> Signed-off-by: NIngo Molnar <mingo@elte.hu>
-
由 FUJITA Tomonori 提交于
Ingo Molnar reported this boot crash: [ 8.655620] pata_amd 0000:00:06.0: version 0.4.1 [ 8.660286] BUG: unable to handle kernel NULL pointer dereference at 00000034 [ 8.663572] IP: [<c100617b>] dma_supported+0x3b/0xa4 [ 8.663572] *pde = 00000000 Initialize dma_ops properly in the 32-bit case. Signed-off-by: NIngo Molnar <mingo@elte.hu>
-
由 FUJITA Tomonori 提交于
If HW IOMMU initialization fails (Intel VT-d often does this, typically due to BIOS bugs), we fall back to nommu. It doesn't work for the majority since nowadays we have more than 4GB memory so we must use swiotlb instead of nommu. The problem is that it's too late to initialize swiotlb when HW IOMMU initialization fails. We need to allocate swiotlb memory earlier from bootmem allocator. Chris explained the issue in detail: http://marc.info/?l=linux-kernel&m=125657444317079&w=2 The current x86 IOMMU initialization sequence is too complicated and handling the above issue makes it more hacky. This patch changes x86 IOMMU initialization sequence to handle the above issue cleanly. The new x86 IOMMU initialization sequence are: 1. we initialize the swiotlb (and setting swiotlb to 1) in the case of (max_pfn > MAX_DMA32_PFN && !no_iommu). dma_ops is set to swiotlb_dma_ops or nommu_dma_ops. if swiotlb usage is forced by the boot option, we finish here. 2. we call the detection functions of all the IOMMUs 3. the detection function sets x86_init.iommu.iommu_init to the IOMMU initialization function (so we can avoid calling the initialization functions of all the IOMMUs needlessly). 4. if the IOMMU initialization function doesn't need to swiotlb then sets swiotlb to zero (e.g. the initialization is sucessful). 5. if we find that swiotlb is set to zero, we free swiotlb resource. Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: chrisw@sous-sol.org Cc: dwmw2@infradead.org Cc: joerg.roedel@amd.com Cc: muli@il.ibm.com LKML-Reference: <1257849980-22640-10-git-send-email-fujita.tomonori@lab.ntt.co.jp> Signed-off-by: NIngo Molnar <mingo@elte.hu>
-
由 FUJITA Tomonori 提交于
This changes detect_intel_iommu() to set intel_iommu_init() to iommu_init hook if detect_intel_iommu() finds the IOMMU. Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: chrisw@sous-sol.org Cc: dwmw2@infradead.org Cc: joerg.roedel@amd.com Cc: muli@il.ibm.com LKML-Reference: <1257849980-22640-6-git-send-email-fujita.tomonori@lab.ntt.co.jp> [ -v2: build fix for the !CONFIG_DMAR case ] Signed-off-by: NIngo Molnar <mingo@elte.hu>
-
由 FUJITA Tomonori 提交于
This changes amd_iommu_detect() to set amd_iommu_init to iommu_init hook if amd_iommu_detect() finds the AMD IOMMU. We can kill the code to check if we found the IOMMU in amd_iommu_init() since amd_iommu_detect() sets amd_iommu_init() only when it found the IOMMU. Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: chrisw@sous-sol.org Cc: dwmw2@infradead.org Cc: joerg.roedel@amd.com Cc: muli@il.ibm.com LKML-Reference: <1257849980-22640-5-git-send-email-fujita.tomonori@lab.ntt.co.jp> Signed-off-by: NIngo Molnar <mingo@elte.hu>
-
由 FUJITA Tomonori 提交于
This changes gart_iommu_hole_init() to set gart_iommu_init() to iommu_init hook if gart_iommu_hole_init() finds the GART IOMMU. We can kill the code to check if we found the IOMMU in gart_iommu_init() since gart_iommu_hole_init() sets gart_iommu_init() only when it found the IOMMU. Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: chrisw@sous-sol.org Cc: dwmw2@infradead.org Cc: joerg.roedel@amd.com Cc: muli@il.ibm.com LKML-Reference: <1257849980-22640-4-git-send-email-fujita.tomonori@lab.ntt.co.jp> Signed-off-by: NIngo Molnar <mingo@elte.hu>
-
由 FUJITA Tomonori 提交于
This changes detect_calgary() to set init_calgary() to iommu_init hook if detect_calgary() finds the Calgary IOMMU. We can kill the code to check if we found the IOMMU in init_calgary() since detect_calgary() sets init_calgary() only when it found the IOMMU. Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: NMuli Ben-Yehuda <muli@il.ibm.com> Cc: chrisw@sous-sol.org Cc: dwmw2@infradead.org Cc: joerg.roedel@amd.com LKML-Reference: <1257849980-22640-3-git-send-email-fujita.tomonori@lab.ntt.co.jp> Signed-off-by: NIngo Molnar <mingo@elte.hu>
-
由 FUJITA Tomonori 提交于
We call the detections functions of all the IOMMUs then all their initialization functions. The latter is pointless since we don't detect multiple different IOMMUs. What we need to do is calling the initialization function of the detected IOMMU. This adds iommu_init hook to x86_init_ops so if an IOMMU detection function can set its initialization function to the hook. Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: chrisw@sous-sol.org Cc: dwmw2@infradead.org Cc: joerg.roedel@amd.com Cc: muli@il.ibm.com LKML-Reference: <1257849980-22640-2-git-send-email-fujita.tomonori@lab.ntt.co.jp> Signed-off-by: NIngo Molnar <mingo@elte.hu>
-
- 08 11月, 2009 3 次提交
-
-
由 Jan Beulich 提交于
Rather than forcing GFP flags and DMA mask to be inconsistent, GFP flags should be determined even for the fallback device through dma_alloc_coherent_mask()/dma_alloc_coherent_gfp_flags(). This restores 64-bit behavior as it was prior to commits 8965eb19 and 4a367f3a (not sure why there are two of them), where GFP_DMA was forced on for 32-bit, but not for 64-bit, with the slight adjustment that afaict even 32-bit doesn't need this without CONFIG_ISA. Signed-off-by: NJan Beulich <jbeulich@novell.com> Acked-by: NTakashi Iwai <tiwai@suse.de> LKML-Reference: <4AF18187020000780001D8AA@vpn.id2.novell.com> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>
-
由 Tejun Heo 提交于
iommu=nodac should forbid dac instead of enabling it. Fix it. Signed-off-by: NTejun Heo <tj@kernel.org> Acked-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Matteo Frigo <athena@fftw.org> Cc: <stable@kernel.org> # .32.x and older LKML-Reference: <4AE5B52A.4050408@kernel.org> Signed-off-by: NIngo Molnar <mingo@elte.hu>
-
由 FUJITA Tomonori 提交于
This patch cleans up pci_iommu_shutdown() a bit to use x86_platform (similar to how IA64 initializes an IOMMU driver). This adds iommu_shutdown() to x86_platform to avoid calling every IOMMUs' shutdown functions in pci_iommu_shutdown() in order. The IOMMU shutdown functions are platform specific (we don't have multiple different IOMMU hardware) so the current way is pointless. An IOMMU driver sets x86_platform.iommu_shutdown to the shutdown function if necessary. Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: joerg.roedel@amd.com LKML-Reference: <20091027163358F.fujita.tomonori@lab.ntt.co.jp> Signed-off-by: NIngo Molnar <mingo@elte.hu>
-
- 12 10月, 2009 1 次提交
-
-
由 David Woodhouse 提交于
We want this to happen after the PCI quirks, which are now running at the very end of the fs_initcalls. This works around the BIOS problems which were originally addressed by commit db8be50c ('USB: Work around BIOS bugs by quiescing USB controllers earlier'), which was reverted in commit d93a8f82. Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
-
- 04 10月, 2009 1 次提交
-
-
由 Marin Mitov 提交于
Signed-off-by: NMarin Mitov <mitov@issp.bas.bg> Cc: Joerg Roedel <joerg.roedel@amd.com> Cc: Jesse Brandeburg <jesse.brandeburg@intel.com> LKML-Reference: <200910032045.02523.mitov@issp.bas.bg> Signed-off-by: NIngo Molnar <mingo@elte.hu> ======================================================
-
- 10 9月, 2009 1 次提交
-
-
由 Alex Williamson 提交于
This avoids a "Malformed early option 'iommu'" on boot when trying to use pass-through mode. Signed-off-by: NAlex Williamson <alex.williamson@hp.com> Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>
-
- 03 9月, 2009 1 次提交
-
-
由 Joerg Roedel 提交于
This variable is read most of the time. This patch marks it as such. It also documents the meaning the this variable while at it. Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>
-
- 01 9月, 2009 1 次提交
-
-
由 Catalin Marinas 提交于
This block is allocated with alloc_bootmem() and scanned by kmemleak but the kernel direct mapping may no longer exist. This patch tells kmemleak to ignore this memory hole. The dma32_bootmem_ptr in dma32_reserve_bootmem() is also ignored. Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com> Acked-by: NIngo Molnar <mingo@elte.hu>
-
- 03 8月, 2009 1 次提交
-
-
由 Alex Williamson 提交于
This avoids a "Malformed early option 'iommu'" warning on boot when trying to use pass-through mode. Signed-off-by: NAlex Williamson <alex.williamson@hp.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
-
- 28 7月, 2009 1 次提交
-
-
由 FUJITA Tomonori 提交于
Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
-
- 02 7月, 2009 1 次提交
-
-
由 David Woodhouse 提交于
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
-
- 15 6月, 2009 1 次提交
-
-
由 Joerg Roedel 提交于
When the IOMMU stays enabled the BIOS may not be able to finish the machine shutdown properly. So disable the hardware on shutdown. Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>
-
- 01 5月, 2009 1 次提交
-
-
由 Fenghua Yu 提交于
This updated patch should fix the compiling errors and remove the extern iommu_pass_through from drivers/pci/intel-iommu.c file. Signed-off-by: NFenghua Yu <fenghua.yu@intel.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
-
- 29 4月, 2009 1 次提交
-
-
由 Fenghua Yu 提交于
The patch adds kernel parameter intel_iommu=pt to set up pass through mode in context mapping entry. This disables DMAR in linux kernel; but KVM still runs on VT-d and interrupt remapping still works. In this mode, kernel uses swiotlb for DMA API functions but other VT-d functionalities are enabled for KVM. KVM always uses multi level translation page table in VT-d. By default, pass though mode is disabled in kernel. This is useful when people don't want to enable VT-d DMAR in kernel but still want to use KVM and interrupt remapping for reasons like DMAR performance concern or debug purpose. Signed-off-by: NFenghua Yu <fenghua.yu@intel.com> Acked-by: NWeidong Han <weidong@intel.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
-
- 07 4月, 2009 3 次提交
-
-
由 Yang Hongyang 提交于
Replace all DMA_24BIT_MASK macro with DMA_BIT_MASK(24) Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Yang Hongyang 提交于
Replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Yang Hongyang 提交于
Replace all DMA_40BIT_MASK macro with DMA_BIT_MASK(40) Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
- 21 3月, 2009 1 次提交
-
-
由 Bjorn Helgaas 提交于
This patch changes a VIA PCI quirk to use dev_info() rather than printk(). Signed-off-by: NBjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: NJesse Barnes <jbarnes@virtuousgek.org>
-
- 17 3月, 2009 1 次提交
-
-
由 Joerg Roedel 提交于
Impact: detect dma memory leaks for pci devices Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>
-