)]}'
{
  "commit": "13371731487896a6ef158b1cd74297f40a3da4bb",
  "tree": "af09fca3fd8811340b373faaddcdb528f8a07669",
  "parents": [
    "04f7a3f12e10032ee3d44df1a509dbf5b2001fce"
  ],
  "author": {
    "name": "Chris Metcalf",
    "email": "cmetcalf@tilera.com",
    "time": "Mon Feb 28 13:21:52 2011 -0500"
  },
  "committer": {
    "name": "Chris Metcalf",
    "email": "cmetcalf@tilera.com",
    "time": "Tue Mar 01 16:20:04 2011 -0500"
  },
  "message": "arch/tile: fix __ndelay etc to work better\n\nThe current implementations of __ndelay and __udelay call a hypervisor\nservice to delay, but the hypervisor service isn\u0027t actually implemented\nvery well, and the consensus is that Linux should handle figuring this\nout natively and not use a hypervisor service.\n\nBy converting nanoseconds to cycles, and then spinning until the\ncycle counter reaches the desired cycle, we get several benefits:\nfirst, we are sensitive to the actual clock speed; second, we use\nless power by issuing a slow SPR read once every six cycles while\nwe delay; and third, we properly handle the case of an interrupt by\nexiting at the target time rather than after some number of cycles.\n\nSigned-off-by: Chris Metcalf \u003ccmetcalf@tilera.com\u003e\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "3baf5fc4c0a174370ee442895d679ef3fd1166bc",
      "old_mode": 33188,
      "old_path": "arch/tile/include/asm/timex.h",
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      "new_mode": 33188,
      "new_path": "arch/tile/include/asm/timex.h"
    },
    {
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      "old_mode": 33188,
      "old_path": "arch/tile/include/hv/hypervisor.h",
      "new_id": "103986b0c10aa45b167ffafdeeef20793d82bb96",
      "new_mode": 33188,
      "new_path": "arch/tile/include/hv/hypervisor.h"
    },
    {
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      "old_mode": 33188,
      "old_path": "arch/tile/kernel/entry.S",
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      "new_path": "arch/tile/kernel/entry.S"
    },
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      "new_path": "arch/tile/kernel/time.c"
    },
    {
      "type": "modify",
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      "old_mode": 33188,
      "old_path": "arch/tile/lib/delay.c",
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      "new_path": "arch/tile/lib/delay.c"
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  ]
}