)]}'
{
  "commit": "54905ab5fe7aa453610e31cec640e528aaedb2e2",
  "tree": "3a91f27b980fd21a34d75ce6495d4b1b54eb265a",
  "parents": [
    "c4b8c570447a7bc171829532269878345b3ea9d0"
  ],
  "author": {
    "name": "Chris Wilson",
    "email": "chris@chris-wilson.co.uk",
    "time": "Mon Nov 07 11:01:28 2016 +0000"
  },
  "committer": {
    "name": "Jani Nikula",
    "email": "jani.nikula@intel.com",
    "time": "Mon Nov 07 19:02:35 2016 +0200"
  },
  "message": "drm/i915: Limit Valleyview and earlier to only using mappable scanout\n\nValleyview appears to be limited to only scanning out from the first 512MiB\nof the Global GTT. Lets presume that this behaviour was inherited from the\ndisplay block copied from g4x (not Ironlake) and all earlier generations\nare similarly affected, though testing suggests different symptoms. For\nsimplicity, impose that these platforms must scanout from the mappable\nregion. (For extra simplicity, use HAS_GMCH_DISPLAY even though this\ncatches Cherryview which does not appear to be limited to the low\naperture for its scanout.)\n\nv2: Use HAS_GMCH_DISPLAY() to more clearly convey my intent about\nlimiting this workaround to the old style of display engine.\n\nv3: Update changelog to reflect testing by Ville Syrjälä\nv4: Include the changes to the comments as well\n\nReported-by: Luis Botello \u003cluis.botello.ortega@intel.com\u003e\nBugzilla: https://bugs.freedesktop.org/show_bug.cgi?id\u003d98036\nFixes: 2efb813d5388 (\"drm/i915: Fallback to using unmappable memory for scanout\")\nSigned-off-by: Chris Wilson \u003cchris@chris-wilson.co.uk\u003e\nCc: Akash Goel \u003cakash.goel@intel.com\u003e\nCc: Joonas Lahtinen \u003cjoonas.lahtinen@linux.intel.com\u003e\nCc: Ville Syrjälä \u003cville.syrjala@linux.intel.com\u003e\nCc: \u003cdrm-intel-fixes@lists.freedesktop.org\u003e # v4.9-rc1+\nLink: http://patchwork.freedesktop.org/patch/msgid/20161107110128.28762-1-chris@chris-wilson.co.uk\nReviewed-by: Ville Syrjälä \u003cville.syrjala@linux.intel.com\u003e\n(cherry picked from commit 767a222e47cc13239d38018887f911fec06169ea)\nSigned-off-by: Jani Nikula \u003cjani.nikula@intel.com\u003e\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "44b3f01faed3519431963e260d5754a53e47448e",
      "old_mode": 33188,
      "old_path": "drivers/gpu/drm/i915/i915_gem.c",
      "new_id": "91ab7e9d6d2ead0827c0b452f119062d8be50a0a",
      "new_mode": 33188,
      "new_path": "drivers/gpu/drm/i915/i915_gem.c"
    }
  ]
}