)]}' { "commit": "6a9ee8af344e3bd7dbd61e67037096cdf7f83289", "tree": "07cdb493a790cf45bc473f2fc2ea1b9a166d5191", "parents": [ "9fd1de52945e06ed88a440c99ca92dab74b9b33c" ], "author": { "name": "Dave Airlie", "email": "airlied@linux.ie", "time": "Mon Feb 01 15:38:10 2010 +1000" }, "committer": { "name": "Dave Airlie", "email": "airlied@redhat.com", "time": "Mon Mar 01 16:20:37 2010 +1000" }, "message": "vga_switcheroo: initial implementation (v15)\n\nMany new laptops now come with 2 gpus, one to be used for low power\nmodes and one for gaming/on-ac applications. These GPUs are typically\nwired to the laptop panel and VGA ports via a multiplexer unit which\nis controlled via ACPI methods.\n\n4 combinations of systems typically exist - with 2 ACPI methods.\nIntel/ATI - Lenovo W500/T500 - use ATPX ACPI method\nATI/ATI - some ASUS - use ATPX ACPI Method\nIntel/Nvidia - - use _DSM ACPI method\nNvidia/Nvidia - - use _DSM ACPI method.\n\nTODO:\nThis patch adds support for the ATPX method and initial bits\nfor the _DSM methods that need to written by someone with\naccess to the hardware.\nAdd a proper non-debugfs interface - need to get some proper\ntesting first.\n\nv2: add power up/down support for both devices\non W500 puts i915/radeon into D3 and cuts power to radeon.\n\nv3: redo probing methods, no DMI list, drm devices call to\nregister with switcheroo, it tries to find an ATPX method on\nany device and once there is two devices + ATPX it inits the\nswitcher.\n\nv4: ATPX msg handling using buffers - should work on more machines\n\nv5: rearchitect after more mjg59 discussion - move ATPX handling to\n radeon driver.\n\nv6: add file headers + initial nouveau bits (to be filled out).\n\nv7: merge delayed switcher code.\n\nv8: avoid suspend/resume of gpu that is off\n\nv9: rearchitect - mjg59 is always right. - move all ATPX code to\nradeon, should allow simpler DSM also proper ATRM handling\n\nv10: add ATRM support for radeon BIOS, add mutex to lock vgasr_priv\n\nv11: fix bug in resuming Intel for 2nd time.\n\nv12: start fixing up nvidia code blindly.\n\nv13: blindly guess at finishing nvidia code\n\nv14: remove radeon audio hacks - fix up intel resume more like upstream\n\nv15: clean up printks + remove unnecessary igd/dis pointers\n\nmount debugfs\n\n/sys/kernel/debug/vgaswitcheroo/switch - should exist if ATPX detected\n + 2 cards.\n\nDIS - immediate change to discrete\nIGD - immediate change to IGD\nDDIS - delayed change to discrete\nDIGD - delayed change to IGD\nON - turn on not in use\nOFF - turn off not in use\n\nTested on W500 (Intel/ATI) and T500 (Intel/ATI)\n\nSigned-off-by: Dave Airlie \u003cairlied@redhat.com\u003e\n", "tree_diff": [ { "type": "modify", "old_id": "2307f98349f7d145aec2a0d57c57a86777a3cbb6", "old_mode": 33188, "old_path": "drivers/gpu/drm/i915/i915_dma.c", "new_id": "42ca07f04a210cdca6bd4bf5cd9cf7d847d5088d", "new_mode": 33188, "new_path": "drivers/gpu/drm/i915/i915_dma.c" }, { "type": "modify", "old_id": "cf4cb3e9a0c22a5a244350db95f8d846b05e3fdb", "old_mode": 33188, "old_path": "drivers/gpu/drm/i915/i915_drv.c", "new_id": "fd739efe73ce40d9f066939a432f0a307c14f17e", "new_mode": 33188, "new_path": "drivers/gpu/drm/i915/i915_drv.c" }, { "type": "modify", "old_id": "b99b6a841d9506b1782562e825b383ac650aaf9c", "old_mode": 33188, "old_path": "drivers/gpu/drm/i915/i915_drv.h", "new_id": "d77e5665135293b22bb57b183b2d890bfb738e01", "new_mode": 33188, "new_path": "drivers/gpu/drm/i915/i915_drv.h" }, { "type": "modify", "old_id": "aaabbcbe590507ca7b56dc382cc09370bd8e449c", 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