Messages in this thread Patch in this message | | | Date | Fri, 6 Nov 2009 15:25:26 -0500 | Subject | Re: [resend] i915: high power consumption after suspend/resume | From | Andrew Lutomirski <> |
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On Thu, Nov 5, 2009 at 11:28 AM, Jesse Barnes <jbarnes@virtuousgeek.org> wrote: > On Wed, 4 Nov 2009 23:00:14 -0500 > Andrew Lutomirski <luto@mit.edu> wrote: >> so it looks like it's not a register setting after all. Maybe my BIOS >> leaves the renderer in some weird state. > > Note that the register dumping tool doesn't capture everything. If you > really want to do some detective work you could dump the whole MMIO > space and compare differences. You should be able to find definitions > for many of the reg offsets in the docs at intellinuxgraphics.org, > maybe there's something we don't dump that's changing and that explains > your power consumption changes.
Here's the diff for another i915_wedged test. - is high power and + is low power.
--- /tmp/regs_pre_wedge 2009-11-06 14:46:44.042345316 -0500 +++ /tmp/regs_post_wedge 2009-11-06 14:47:14.798345239 -0500 @@ -45,8 +45,8 @@ (II): PP_DIVISOR: 0x003e7f03 (II): PFIT_CONTROL: 0x00000000 (II): PFIT_PGM_RATIOS: 0x00000000 -(II): PORT_HOTPLUG_EN: 0x3e040320 -(II): PORT_HOTPLUG_STAT: 0x38560800 +(II): PORT_HOTPLUG_EN: 0x3e040200 +(II): PORT_HOTPLUG_STAT: 0x38000300 (II): DSPACNTR: 0x00000000 (disabled, pipe A) (II): DSPASTRIDE: 0x00000000 (0 bytes) (II): DSPAPOS: 0x00000000 (0, 0) @@ -179,9 +179,9 @@ (II): AUD_CONFIG: 0x00000004 (II): AUD_HDMIW_STATUS: 0x00000000 (II): AUD_CONV_CHCNT: 0x00000000 -(II): VIDEO_DIP_CTL: 0x20000602 +(II): VIDEO_DIP_CTL: 0x20000603 (II): AUD_PINW_CNTR: 0x00000140 -(II): AUD_CNTL_ST: 0x00002042 +(II): AUD_CNTL_ST: 0x00002063 (II): AUD_PIN_CAP: 0x00000094 (II): AUD_PINW_CAP: 0x004073bd (II): AUD_PINW_UNSOLRESP: 0x00000000 @@ -2285,8 +2285,8 @@ 00002024: 00000000 00002028: 00000900 0000202C: 00000000 -00002030: 00005B10 -00002034: 07205B10 +00002030: 00000000 +00002034: 02000000 00002038: 02000000 0000203C: 0001F001 00002040: 00000000 @@ -2302,7 +2302,7 @@ 00002068: 01000000 0000206C: FFFFFFFE 00002070: 0001E000 -00002074: 07205B10 +00002074: 02000000 00002078: 02005B10 0000207C: FFFFFFFF 00002080: 01FFF000 @@ -2316,7 +2316,7 @@ 000020A0: 00028053 000020A4: 00000000 000020A8: FFFC5FAE -000020AC: 00020000 +000020AC: 00000000 000020B0: 00000000 000020B4: FFFFFF05 000020B8: 00000001 @@ -2407,7 +2407,7 @@ 0000220C: 10800001 00002210: 00000000 00002214: 00000000 -00002218: 07205B10 +00002218: 02000000 0000221C: 00000000 00002220: 00000000 00002224: 00000000 @@ -2487,8 +2487,8 @@ 0000234C: 00000000 00002350: 2364819D 00002354: 00000000 -00002358: 55A00000 -0000235C: 56C9F19D +00002358: A9000000 +0000235C: 5892DB63 00002360: 00000000 00002364: 00000000 00002368: 00000000 @@ -16935,7 +16935,7 @@ 0001050C: 00000000 00010510: 00000000 00010514: 00000000 -00010518: 25280A0B +00010518: 25270A0B 0001051C: 00000000 00010520: 00000000 00010524: 00000000 @@ -17169,7 +17169,7 @@ 000108B4: 00000024 000108B8: 00000000 000108BC: 00000000 -000108C0: 00003B37 +000108C0: 00003937 000108C4: 00000807 000108C8: 0000211F 000108CC: 00000000 @@ -17577,7 +17577,7 @@ 00010F14: 00000000 00010F18: 00000000 00010F1C: 00000000 -00010F20: 20024808 +00010F20: 28036A8D 00010F24: 00000000 00010F28: 00000000 00010F2C: 00000000 @@ -17633,9 +17633,9 @@ 00010FF4: 00000000 00010FF8: 00000000 00010FFC: 000007D0 -00011000: 0093007A -00011004: 007C0400 -00011008: 0000007C +00011000: 0093007F +00011004: 00FF0000 +00011008: 000000FF 0001100C: 00000000 00011010: 80000009 00011014: 00000000 @@ -17747,7 +17747,7 @@ 000111BC: 00000000 000111C0: 03030100 000111C4: 0A030A03 -000111C8: 00000020 +000111C8: 00000021 000111CC: 00000017 000111D0: 00000000 000111D4: 00000000 @@ -17891,9 +17891,9 @@ 000113FC: 00000000 00011400: 00113300 00011404: 00000000 -00011408: 0FFEFFFF +00011408: 00047E7F 0001140C: 80010880 -00011410: 60002C59 +00011410: 40002C59 00011414: 24049801 00011418: 00000000 0001141C: 00000000 @@ -18068,7 +18068,7 @@ 000116C0: 00000000 000116C4: 00000000 000116C8: 00000000 -000116CC: 0000007C +000116CC: 000000FF 000116D0: 00000000 000116D4: 00000400 000116D8: 00000000 @@ -99621,8 +99621,8 @@ 00061104: 00000000 00061108: 00000000 0006110C: 00000000 -00061110: 3E040320 -00061114: 38560800 +00061110: 3E040200 +00061114: 38000300 00061118: 00000000 0006111C: 00000000 00061120: 00000000 @@ -99645,7 +99645,7 @@ 00061164: 00000000 00061168: 00000000 0006116C: 00000000 -00061170: 20000602 +00061170: 20000603 00061174: 00000000 00061178: 00000000 0006117C: 00000000 @@ -99705,7 +99705,7 @@ 00061254: 0CF80CF8 00061258: 00000000 0006125C: 00000000 -00061260: 00000002 +00061260: 00000003 00061264: 00000000 00061268: 00000000 0006126C: 00000000 @@ -100622,7 +100622,7 @@ 000620A8: 00000001 000620AC: 00000002 000620B0: 00000140 -000620B4: 00002042 +000620B4: 00002063 000620B8: 00000000 000620BC: 18560010 000620C0: 00000000 @@ -115937,7 +115937,7 @@ 00070FF4: 00000000 00070FF8: 00000000 00070FFC: 00000000 -00071000: 00000172 +00071000: 00000286 00071004: 834C0384 00071008: C0000000 0007100C: 00000000 @@ -115953,9 +115953,9 @@ 00071034: 00000000 00071038: 00000000 0007103C: 00000000 -00071040: 0001218C +00071040: 00012784 00071044: 00000004 -00071048: 56CAB03B +00071048: 5893BC94 0007104C: 4C8BF9B3 00071050: 00000000 00071054: 00000000 Here's what the docs say:
2030, 2034: ring buffer head/tail 2074: Active head pointer register 20AC: Interrupt Status Register (ISR) 2218: Reserved 2358, 235C: TIMESTAMP
1xxxx: MCHBAR aperture 61110: PORT_HOTPLU_EN 61114: PORT_HOTPLU_STAT 61170: UDI_IF_CTL (UDI InfoFrame Control)
61260: BLM_HIST_CTL (Image BLM Histogram Control Register)
620B4: Reserved (for High Definition?)
71000: PIPEB_DSL (Pipe B Display Scan Line Count) 71040: PIPEBFRAMEH: Pipe B Frame Count High 71048: Reserved
Any ideas?
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