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alistair23-linux/drivers/gpu/drm/i915
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Jesse Barnes 23b2f8bb92 drm/i915: load a ring frequency scaling table v3 
The ring frequency scaling table tells the PCU to treat certain GPU
frequencies as if they were a given CPU frequency for purposes of
scaling the ring frequency.  Normally the PCU will scale the ring
frequency based on the CPU P-state, but with the table present, it will
also take the GPU frequency into account.

The main downside of keeping the ring frequency high while the CPU is
at a low frequency (or asleep altogether) is increased power
consumption.  But then if you're keeping your GPU busy, you probably
want the extra performance.

v2:
  - add units to debug table header (from Eric)
  - use tsc_khz as a fallback if the cpufreq driver doesn't give us a freq
    (from Chris)
v3:
  - fix comments & debug output
  - remove unneeded force wake get/put

Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Tested-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Keith Packard <keithp@keithp.com>
 		2011-06-28 13:54:27 -07:00
..
Makefile drm/i915: Split i915_gem_execbuffer into its own file. 2010-11-25 21:19:25 +00:00
dvo.h drm/i915: Subclass intel_encoder. 2010-08-09 11:24:28 -07:00
dvo_ch7xxx.c drm/i915: use GMBUS to manage i2c links 2010-09-18 15:46:19 +01:00
dvo_ch7017.c drm/i915/dvo: Report LVDS attached to ch701x as connected 2010-12-30 13:50:43 +00:00
dvo_ivch.c drm/i915: use GMBUS to manage i2c links 2010-09-18 15:46:19 +01:00
dvo_sil164.c drm/i915: use GMBUS to manage i2c links 2010-09-18 15:46:19 +01:00
dvo_tfp410.c drm/i915: use GMBUS to manage i2c links 2010-09-18 15:46:19 +01:00
i915_debugfs.c drm/i915: load a ring frequency scaling table v3 2011-06-28 13:54:27 -07:00
i915_dma.c drm/i915: more struct_mutex locking 2011-06-27 17:00:35 -07:00
i915_drv.c drm/i915: forcewake fix after reset 2011-06-28 09:44:55 -07:00
i915_drv.h Merge branch 'drm-intel-fixes' into drm-intel-next 2011-06-26 19:12:00 -07:00
i915_gem.c Merge branch 'drm-intel-fixes' into drm-intel-next 2011-06-28 10:29:47 -07:00
i915_gem_debug.c drm/i915: Refine tracepoints 2011-02-07 14:59:18 +00:00
i915_gem_evict.c drm/i915: Refine tracepoints 2011-02-07 14:59:18 +00:00
i915_gem_execbuffer.c Revert "drm/i915: Kill GTT mappings when moving from GTT domain" 2011-06-21 11:11:02 -07:00
i915_gem_gtt.c drm/i915: Add an interface to dynamically change the cache level 2011-06-09 21:51:16 -07:00
i915_gem_tiling.c drm/i915: add swizzle/tiling support for Ivy Bridge 2011-05-13 17:05:43 -07:00
i915_ioc32.c drm: convert drm_ioctl to unlocked_ioctl 2009-12-18 11:22:31 +10:00
i915_irq.c drm/i915: Apply HWSTAM workaround for BSD ring on SandyBridge 2011-06-21 10:57:23 -07:00
i915_mem.c drm: Remove memory debugging infrastructure. 2009-06-18 13:00:33 -07:00
i915_reg.h drm/i915: load a ring frequency scaling table v3 2011-06-28 13:54:27 -07:00
i915_suspend.c drm/i915: load a ring frequency scaling table v3 2011-06-28 13:54:27 -07:00
i915_trace.h drm/i915: Refine tracepoints 2011-02-07 14:59:18 +00:00
i915_trace_points.c drm/i915: Add tracepoints 2009-09-23 01:05:21 +01:00
intel_acpi.c drm/i915: i915 cannot provide switcher services. 2010-12-08 15:40:44 +10:00
intel_bios.c drm: Verify debug message arguments 2011-04-28 14:53:21 +10:00
intel_bios.h Revert "drm/i915: Disable SSC for outputs other than LVDS or DP" 2011-02-22 15:55:28 +00:00
intel_crt.c drm/i915/crt: Explicitly return false if connected to a digital monitor 2011-06-04 10:41:06 -07:00
intel_display.c drm/i915: load a ring frequency scaling table v3 2011-06-28 13:54:27 -07:00
intel_dp.c drm/i915: Share the common force-audio property between connectors 2011-06-04 10:41:25 -07:00
intel_drv.h drm/i915: load a ring frequency scaling table v3 2011-06-28 13:54:27 -07:00
intel_dvo.c drm/i915: cleanup per-pipe reg usage 2011-02-07 21:17:15 +00:00
intel_fb.c drm/i915: restore only the mode of this driver on lastclose (v2) 2011-04-27 17:51:59 +10:00
intel_hdmi.c drm/i915: Share the common force-audio property between connectors 2011-06-04 10:41:25 -07:00
intel_i2c.c Revert "drm/i915: Enable GMBUS for post-gen2 chipsets" 2011-06-17 09:22:01 +10:00
intel_lvds.c drm/i915: Add a no lvds quirk for the Asus EeeBox PC EB1007 2011-06-04 10:48:45 -07:00
intel_modes.c drm/i915: Share the common force-audio property between connectors 2011-06-04 10:41:25 -07:00
intel_opregion.c drm/i915: Use a symbolic constant for OpRegion lid state 2011-02-24 18:13:42 +00:00
intel_overlay.c drm/i915: more struct_mutex locking 2011-06-27 17:00:35 -07:00
intel_panel.c Merge commit '5359533801e3dd3abca5b7d3d985b0b33fd9fe8b' into drm-core-next 2011-03-16 11:34:41 +10:00
intel_ringbuffer.c drm/i915: Add an interface to dynamically change the cache level 2011-06-09 21:51:16 -07:00
intel_ringbuffer.h drm/i915: proper use of forcewake 2011-05-10 13:56:45 -07:00
intel_sdvo.c drm/i915: Share the common force-audio property between connectors 2011-06-04 10:41:25 -07:00
intel_sdvo_regs.h Fix common misspellings 2011-03-31 11:26:23 -03:00
intel_tv.c drm/i915: Don't store temporary load-detect variables in the generic encoder 2011-05-10 13:19:15 -07:00