- 06 9月, 2008 1 次提交
-
-
由 Thomas Bogendoerfer 提交于
trap_init issues flush_icache_range(), which uses ipi functions to get icache flushing done on all cpus. But this is done before interrupts are enabled and caused WARN_ON messages. This changeset introduces a new local_flush_icache_range() and uses it before interrupts (and additional CPUs) are enabled to avoid this problem. Signed-off-by: NThomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-
- 31 7月, 2008 1 次提交
-
-
由 Ralf Baechle 提交于
Bug originally found and reported by Julia Lawall <julia@diku.dk>. I decieded that the whole error check was mostly useless paranoia and should be discarded. It would only ever trigger if r3k_have_wired_reg has a wrong value. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-
- 27 7月, 2008 2 次提交
-
-
由 Johannes Weiner 提交于
Remove arch-specific show_mem() in favor of the generic version. This also removes the following redundant information display: - pages in swapcache, printed by show_swap_cache_info() where show_mem() calls show_free_areas(), which calls show_swap_cache_info(). And show_mem() does now actually print something on configurations with multiple nodes. Signed-off-by: NJohannes Weiner <hannes@saeurebad.de> Acked-by: NRalf Baechle <ralf@linux-mips.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 FUJITA Tomonori 提交于
Add per-device dma_mapping_ops support for CONFIG_X86_64 as POWER architecture does: This enables us to cleanly fix the Calgary IOMMU issue that some devices are not behind the IOMMU (http://lkml.org/lkml/2008/5/8/423). I think that per-device dma_mapping_ops support would be also helpful for KVM people to support PCI passthrough but Andi thinks that this makes it difficult to support the PCI passthrough (see the above thread). So I CC'ed this to KVM camp. Comments are appreciated. A pointer to dma_mapping_ops to struct dev_archdata is added. If the pointer is non NULL, DMA operations in asm/dma-mapping.h use it. If it's NULL, the system-wide dma_ops pointer is used as before. If it's useful for KVM people, I plan to implement a mechanism to register a hook called when a new pci (or dma capable) device is created (it works with hot plugging). It enables IOMMUs to set up an appropriate dma_mapping_ops per device. The major obstacle is that dma_mapping_error doesn't take a pointer to the device unlike other DMA operations. So x86 can't have dma_mapping_ops per device. Note all the POWER IOMMUs use the same dma_mapping_error function so this is not a problem for POWER but x86 IOMMUs use different dma_mapping_error functions. The first patch adds the device argument to dma_mapping_error. The patch is trivial but large since it touches lots of drivers and dma-mapping.h in all the architecture. This patch: dma_mapping_error() doesn't take a pointer to the device unlike other DMA operations. So we can't have dma_mapping_ops per device. Note that POWER already has dma_mapping_ops per device but all the POWER IOMMUs use the same dma_mapping_error function. x86 IOMMUs use device argument. [akpm@linux-foundation.org: fix sge] [akpm@linux-foundation.org: fix svc_rdma] [akpm@linux-foundation.org: build fix] [akpm@linux-foundation.org: fix bnx2x] [akpm@linux-foundation.org: fix s2io] [akpm@linux-foundation.org: fix pasemi_mac] [akpm@linux-foundation.org: fix sdhci] [akpm@linux-foundation.org: build fix] [akpm@linux-foundation.org: fix sparc] [akpm@linux-foundation.org: fix ibmvscsi] Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Muli Ben-Yehuda <muli@il.ibm.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Avi Kivity <avi@qumranet.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
- 16 7月, 2008 1 次提交
-
-
由 Dmitri Vorobiev 提交于
The following routines uasm_rel_highest() uasm_rel_higher() are needlessly defined global. This patch makes them static. Compile-tested using a customized config for the Malta board. Booting the same board up to the shell prompt was also successful with this patch applied. Spotted by sparse. Signed-off-by: NDmitri Vorobiev <dmitri.vorobiev@movial.fi> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-
- 09 7月, 2008 2 次提交
-
-
由 Thomas Bogendoerfer 提交于
The generated copy_page for R4k CPU with a 128 byte cache line size used Create Dirty Exclusive cache line operations even if only part of the cache line was filled. This change avoids generating cache operations, if only part of the cache line size is copied in one loop. It also increases the maxmimum loop size, because the generated code even fits into the available space for r4k CPUs with 128 byte cache line size. Signed-off-by: NThomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-
由 Shane McDonald 提交于
Resolve these mismatches by defining affected functions with the __cpuinit attribute, rather than __init. Signed-off-by: NShane McDonald <mcdonald.shane@gmail.com> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-
- 26 6月, 2008 1 次提交
-
-
由 Jens Axboe 提交于
It's never used and the comments refer to nonatomic and retry interchangably. So get rid of it. Acked-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
-
- 16 6月, 2008 4 次提交
-
-
由 Ralf Baechle 提交于
Assuming the call of kmap_coherent in local_r4k_flush_cache_page doesn't need fixing this was skipped in fcae549295bcae801ac48fc1c2030ab8cc487020. Turns out it needed the same change after all. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-
由 Atsushi Nemoto 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-
由 Ralf Baechle 提交于
Build error was caused by commit 35133692. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-
由 Ralf Baechle 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-
- 06 6月, 2008 2 次提交
-
-
由 Yoichi Yuasa 提交于
Signed-off-by: NYoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-
由 Thomas Bogendoerfer 提交于
Treat R4700 like R4600 in build_tlb_probe_entry. Without this fix kernel will lock up. Signed-off-by: NThomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-
- 12 5月, 2008 1 次提交
-
-
由 Adrian Bunk 提交于
This patch removes the no longer used export of __kmap_atomic_to_page. Signed-off-by: NAdrian Bunk <bunk@kernel.org> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-
- 29 4月, 2008 8 次提交
-
-
由 Dmitri Vorobiev 提交于
No users for the copy_from_user_page() routine exist outside of the core kernel code. Therefore, EXPORT_SYMBOL(copy_from_user_page) is useless, and this patch removes it. Signed-off-by: NDmitri Vorobiev <dmitri.vorobiev@gmail.com> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-
由 Dmitri Vorobiev 提交于
The copy_to_user_page() function is called only in the core kernel code. Therefore, there is no need to export it. This patch removes EXPORT_SYMBOL(copy_to_user_page). Signed-off-by: NDmitri Vorobiev <dmitri.vorobiev@gmail.com> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-
由 Dmitri Vorobiev 提交于
The copy_user_highpage() routine has no users outside of the core kernel code, so exporting this symbol is pointless. This patch removes EXPORT_SYMBOL(copy_user_highpage). Signed-off-by: NDmitri Vorobiev <dmitri.vorobiev@gmail.com> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-
由 Johannes Weiner 提交于
Signed-off-by: NJohannes Weiner <hannes@saeurebad.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-
由 Ralf Baechle 提交于
Signed-off-by: NChris Dearman <chris@mips.com> Signed-off-by: NAtsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-
由 Chris Dearman 提交于
Slightly tacky, but there is a precedent in the sparc archirecture code. Signed-off-by: NChris Dearman <chris@mips.com> Signed-off-by: NAtsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-
由 Chris Dearman 提交于
Still, only the 4K may actually implement it. Signed-off-by: NChris Dearman <chris@mips.com> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-
由 Thiemo Seufer 提交于
Fold the SB-1 specific implementation of clear_page/copy_page in the generic version, and rewrite that one in tlbex style. The immediate benefits: - It converts the compile-time workaround for SB-1 pass 1 prefetches to a more efficient run-time check. - It allows adjustment of loop unfolling, which helps to reduce the number of redundant cdex cache ops. - It fixes some esoteric cornercases (the cache line length calculations can go wrong, and support for 64k pages without prefetch instructions will overflow the addiu immediate). - Somewhat better guesses of "good" prefetch values. Signed-off-by: NThiemo Seufer <ths@networkno.de> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-
- 08 4月, 2008 1 次提交
-
-
由 Ralf Baechle 提交于
flush_cache_vmap / flush_cache_vunmap were calling flush_cache_all which - having been deprecated - turned into a nop ... Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-
- 01 4月, 2008 1 次提交
-
-
由 Thomas Bogendoerfer 提交于
Early 4KEc were MIPS32r1 and therefore need some love to get a TLB refill handler. Signed-off-by: NThomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-
- 12 3月, 2008 2 次提交
-
-
由 Ralf Baechle 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-
由 Thiemo Seufer 提交于
We support now other page sizes as well. Signed-off-by: NThiemo Seufer <ths@networkno.de> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-
- 20 2月, 2008 3 次提交
-
-
由 Thiemo Seufer 提交于
Fix type mismatch warnings for 64-bit kernel builds which trigger -Werror. The problem affects only SB-1 kernels with CONFIG_SIBYTE_DMA_PAGEOPS enabled. Signed-off-by: NThiemo Seufer <ths@networkno.de> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-
由 Ralf Baechle 提交于
kmap_coherent will only work correctly if the page it is called on is not marked dirty. If it's dirty the kernel address of the page should be used instead of a temporary mapping. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-
由 Ralf Baechle 提交于
So far flush_cache_range() did't consider the I-cache largely because it did rarely ever matter to real world code. This was working primarily because normally code and data are don't share the same pages - with the exception of MIPS16 code which uses address constants embedded between the code. The following sequence of events may break the code: o MIPS16 executable being loaded o dynamic linker relocates the address constants embedded into the code: o Uses mprotect(2) to make code pages PROT_READ|PROT_WRITE o Performs the actual relocations by writing to the pages which likely are COW. Because no PROT_EXEC is set I-cache coherence will not be considered. o Uses mprotect(2) to switch code pages back to PROT_READ|PROT_EXEC. This results in a call to flush_cache_range() which also does not consider I-caches. o => executing the page just having been relocated may now result in the I-cache getting refilled with stale data from memory. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-
- 03 2月, 2008 1 次提交
-
-
由 Joe Perches 提交于
Signed-off-by: NJoe Perches <joe@perches.com> Signed-off-by: NAdrian Bunk <bunk@kernel.org>
-
- 01 2月, 2008 1 次提交
-
-
由 Thiemo Seufer 提交于
This patch moves the micro-assembler in a separate implementation, as it is useful for further run-time optimizations. The only change in behaviour is cutting down printk noise at kernel startup time. Checkpatch complains about macro parameters which aren't protected by parentheses. I believe this is a flaw in checkpatch, the paste operator used in those macros won't work with parenthesised parameters. Signed-off-by: NThiemo Seufer <ths@networkno.de> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-
- 29 1月, 2008 8 次提交
-
-
由 Manuel Lauss 提交于
This patch adds IDs for new Au1200 variants: Au1210 and Au1250. They are essentially identical to the Au1200 except for the Au1210 which has a different SoC-ID in the PRId register [bits 31:24]. The Au1250 is a "Au1200 V0.2". Signed-off-by: NManuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-
由 Thomas Bogendoerfer 提交于
Not cache coherent R10k systems (like IP28) need to do real cache invalidates in dma_cache_sync(). Signed-off-by: NThomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-
由 Thomas Bogendoerfer 提交于
R10k non coherent machines need a real dma cache invalidate to get rid of speculative stores in cache. For other machines this promises a slight speedup. Signed-off-by: NThomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-
由 Franck Bui-Huu 提交于
Signed-off-by: NFranck Bui-Huu <fbuihuu@gmail.com> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-
由 Franck Bui-Huu 提交于
Signed-off-by: NFranck Bui-Huu <fbuihuu@gmail.com> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-
由 Franck Bui-Huu 提交于
Signed-off-by: NFranck Bui-Huu <fbuihuu@gmail.com> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-
由 Franck Bui-Huu 提交于
Signed-off-by: NFranck Bui-Huu <fbuihuu@gmail.com> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-
由 Ralf Baechle 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
-