“6516ab6fdffbda656253d4e1231660c3f87f7889”上不存在“README.md”
  1. 06 9月, 2008 2 次提交
  2. 31 7月, 2008 1 次提交
  3. 27 7月, 2008 2 次提交
    • J
      mips: use generic show_mem() · e66ddf1a
      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>
      e66ddf1a
    • F
      dma-mapping: add the device argument to dma_mapping_error() · 8d8bb39b
      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>
      8d8bb39b
  4. 16 7月, 2008 1 次提交
  5. 09 7月, 2008 2 次提交
  6. 26 6月, 2008 1 次提交
  7. 16 6月, 2008 4 次提交
  8. 06 6月, 2008 2 次提交
  9. 12 5月, 2008 1 次提交
  10. 29 4月, 2008 8 次提交
  11. 08 4月, 2008 1 次提交
  12. 01 4月, 2008 1 次提交
  13. 12 3月, 2008 2 次提交
  14. 20 2月, 2008 3 次提交
    • T
      [MIPS] SB1: Fix CONFIG_SIBYTE_DMA_PAGEOPS build failure. · 345599ab
      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>
      345599ab
    • R
      [MIPS] Fix buggy invocations of kmap_coherent() · 9a74b3eb
      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>
      9a74b3eb
    • R
      [MIPS] Handle I-cache coherency in flush_cache_range() · 2eaa7ec2
      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>
      2eaa7ec2
  15. 03 2月, 2008 1 次提交
  16. 01 2月, 2008 1 次提交
    • T
      [MIPS] Split the micro-assembler from tlbex.c. · e30ec452
      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>
      e30ec452
  17. 29 1月, 2008 7 次提交
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