AuxXxilium/linux_dsm_epyc7002
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cca84a1fff
linux_dsm_epyc7002/drivers/gpu/drm/i915
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Ben Widawsky cca84a1fff drm/i915: Clarify RC6 enabling 
At one time, we though all future platforms would have the deeper RC6
states. As it turned out, they killed it after Ivybridge, and began
using other means to achieve the power savings (the stuff we need to get
to PC7+).

The enable function was left in a weird state of odd corner cases as a
result. Since the future is now, and we also have some insight into
what's currently the future, we have an opportunity to simplify, and
future proof the function.

NOTE: VLV will be addressed in a subsequent patch. This patch was trying
not to change functionality.

NOTE2: All callers sanitize the return value anyway, so this patch is
simply to have the code make a bit more sense.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Deepak S <deepak.s@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-02-12 18:53:12 +01:00
..
dvo_ch7xxx.c drm/i915: dvo_ch7xxx: fix vsync polarity setting 2013-07-25 16:10:22 +02:00
dvo_ch7017.c
dvo_ivch.c
dvo_ns2501.c drm/i915/ns2501: Rip out the reenable hack 2013-11-04 16:32:31 +01:00
dvo_sil164.c
dvo_tfp410.c
dvo.h drm/i915: Remove unused mode_fixup() vfunc of struct intel_dvo_dev_ops 2013-09-05 21:39:59 +02:00
i915_debugfs.c drm/i915: add a display info file to debugfs v2 2014-02-12 18:53:04 +01:00
i915_dma.c drm/i915: Provide a command line option to disable display 2014-02-12 18:53:01 +01:00
i915_drv.c drm/i915: Restore rps/rc6 on reset 2014-02-07 10:25:10 +01:00
i915_drv.h drm/i915: add a display info file to debugfs v2 2014-02-12 18:53:04 +01:00
i915_gem_context.c drm/i915: check for oom when allocating private_default_ctx 2014-02-04 12:10:26 +01:00
i915_gem_debug.c drm/i915: Fix #endif comment 2013-08-09 10:45:52 +02:00
i915_gem_dmabuf.c drm/i915: Pin pages whilst allocating for dma-buf vmap() 2013-11-29 15:51:20 +01:00
i915_gem_evict.c drm/i915: Kerneldoc for i915_gem_evict.c 2014-01-29 22:19:17 +01:00
i915_gem_execbuffer.c drm/i915: move module parameters into a struct, in a new file 2014-01-27 17:16:45 +01:00
i915_gem_gtt.c drm/i915: move module parameters into a struct, in a new file 2014-01-27 17:16:45 +01:00
i915_gem_stolen.c drm/i915: Fix the offset issue for the stolen GEM objects 2014-01-28 09:04:42 +01:00
i915_gem_tiling.c drm/i915: Make pin count per VMA 2013-12-18 15:27:49 +01:00
i915_gem.c drm/i915: Flush GPU rendering with a lockless wait during a pagefault 2014-02-12 18:52:59 +01:00
i915_gpu_error.c drm/i915: Generate a hang error code 2014-02-05 17:17:10 +01:00
i915_ioc32.c
i915_irq.c drm/i915: vlv: handle only enabled pipestat interrupt events 2014-02-12 18:52:59 +01:00
i915_params.c drm/i915: Provide a command line option to disable display 2014-02-12 18:53:01 +01:00
i915_reg.h drm/i915: Disable display when fused off 2014-02-12 18:53:00 +01:00
i915_suspend.c drm/i915: Kill most of the FBC register save/restore 2014-01-25 21:17:03 +01:00
i915_sysfs.c drm/i915: Update rps interrupt limits 2014-02-07 10:26:17 +01:00
i915_trace_points.c
i915_trace.h drm/i915: Add a tracepoint for using a semaphore 2013-10-01 07:45:24 +02:00
i915_ums.c drm/i915: Only restore backlight combination mode reg for ums 2014-01-24 17:22:45 +01:00
intel_acpi.c ACPI: Eliminate the DEVICE_ACPI_HANDLE() macro 2013-11-14 23:17:21 +01:00
intel_bios.c drm/i915: move module parameters into a struct, in a new file 2014-01-27 17:16:45 +01:00
intel_bios.h drm/i915: parse backlight modulation frequency from the BIOS VBT 2013-12-16 10:02:48 +01:00
intel_crt.c drm/i915: Shuffle modeset reset handling around 2014-01-24 17:22:52 +01:00
intel_ddi.c drm/i915: Consolidate FUSE_STRAP in one set of defines 2014-02-12 18:52:52 +01:00
intel_display.c drm/i915: WARN in case we're enabling the pipe and it's enabled 2014-02-12 18:53:11 +01:00
intel_dp.c drm/i915: Initialize downclock mode in panel init 2014-02-12 18:53:05 +01:00
intel_drv.h drm/i915: Initialize downclock mode in panel init 2014-02-12 18:53:05 +01:00
intel_dsi_cmd.c drm/i915/dsi: s/size_t/int/ 2013-09-04 17:34:51 +02:00
intel_dsi_cmd.h drm/i915/dsi: s/size_t/int/ 2013-09-04 17:34:51 +02:00
intel_dsi_pll.c drm/i915: Try harder to get best m, n, p values with minimal error 2013-12-11 23:52:18 +01:00
intel_dsi.c drm/i915: Initialize downclock mode in panel init 2014-02-12 18:53:05 +01:00
intel_dsi.h drm/i915: Parametrize the dphy and other spec specific parameters 2013-12-11 23:52:20 +01:00
intel_dvo.c drm/i915: Return a drm_mode_status enum in the mode_valid vfuncs 2013-11-28 16:49:33 +01:00
intel_fbdev.c drm/i915: Fix error path leak in fbdev fb allocation 2014-02-12 18:53:02 +01:00
intel_hdmi.c drm/i915: Reorganize display pipe register accesses 2014-02-05 00:46:08 +01:00
intel_i2c.c drm/i915/vlv: split CCK and DDR freq usage 2013-11-05 19:28:47 +01:00
intel_lvds.c drm/i915: Initialize downclock mode in panel init 2014-02-12 18:53:05 +01:00
intel_modes.c
intel_opregion.c drm/i915: Eliminate lots of WARNs when there's no backlight present 2014-01-22 10:34:38 +01:00
intel_overlay.c Merge branch 'topic/ppgtt' into drm-intel-next-queued 2014-01-25 21:14:57 +01:00
intel_panel.c drm/i915: Initialize downclock mode in panel init 2014-02-12 18:53:05 +01:00
intel_pm.c drm/i915: Clarify RC6 enabling 2014-02-12 18:53:12 +01:00
intel_ringbuffer.c drm/i915: Prevent recursion by retiring requests when the ring is full 2014-02-06 17:43:13 +01:00
intel_ringbuffer.h drm/i915: Use hangcheck score to find guilty context 2014-02-04 11:57:24 +01:00
intel_sdvo_regs.h drm/i915: use __packed instead of __attribute__((packed)) 2013-12-03 18:19:49 +01:00
intel_sdvo.c drm/i915: Don't cast away const from infoframe buffer 2013-12-10 14:49:04 +01:00
intel_sideband.c drm/i915: Use FLISDSI interface for band gap reset 2013-12-11 23:52:17 +01:00
intel_sprite.c drm/i915: Shuffle sprite register writes into a tighter group 2014-01-24 17:22:53 +01:00
intel_tv.c drm/i915: pass status instead of enable flags to i915_enable_pipestat 2014-02-12 18:52:57 +01:00
intel_uncore.c Merge branch 'topic/ppgtt' into drm-intel-next-queued 2014-01-25 21:14:57 +01:00
Kconfig i915, fbdev: Fix Kconfig typo 2013-11-21 21:59:02 +01:00
Makefile drm/i915: move module parameters into a struct, in a new file 2014-01-27 17:16:45 +01:00