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be3d26b058
linux/drivers/gpu/drm/i915
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Paulo Zanoni be3d26b058 drm/i915: get a PC8 reference when enabling the power well 
In the current code, at haswell_modeset_global_resources, first we
decide if we want to enable/disable the power well, then we decide if
we want to enable/disable PC8. On the case where we're enabling PC8
this works fine, but on the case where we disable PC8 due to a non-eDP
monitor being enabled, we first enable the power well and then disable
PC8. Although wrong, this doesn't seem to be causing any problems now,
and we don't even see anything in dmesg. But the patches for runtime
D3 turn this problem into a real bug, so we need to fix it.

This fixes the "modeset-non-lpsp" subtest from the "pm_pc8" test from
intel-gpu-tools.

v2: - Rebase (i915_disable_power_well).
v3: - More reabase.
v4: - Rebase on top of -fixes instead of -nightly.

This is commit d62292c8f7 in -next, but
we need it in -fixes to address Dave's report.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Reported-by: Dave Jones <davej@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-12-13 21:34:57 +01:00
..
dvo_ch7xxx.c
dvo_ch7017.c
dvo_ivch.c
dvo_ns2501.c
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 Merge tag 'bdw-stage1-2013-11-08-v2' of git://people.freedesktop.org/~danvet/drm-intel into drm-next 2013-11-10 18:35:33 +10:00
i915_dma.c drm/i915: don't update the dri1 breadcrumb with modesetting 2013-12-11 14:25:58 +01:00
i915_drv.c drm/i915: Do not clobber config status after a forced restore of hw state 2013-12-03 23:15:46 +01:00
i915_drv.h Merge tag 'drm-intel-fixes-2013-12-11' of git://people.freedesktop.org/~danvet/drm-intel into drm-fixes 2013-12-12 10:38:43 +10:00
i915_gem_context.c drm/i915: Fix use-after-free in do_switch 2013-12-06 13:09:11 +01:00
i915_gem_debug.c
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: Repeat eviction search after idling the GPU 2013-12-10 08:13:58 +01:00
i915_gem_execbuffer.c drm/i915: Prevent double unref following alloc failure during execbuffer 2013-12-12 10:44:57 +01:00
i915_gem_gtt.c Merge branch 'bdw-fixes' of git://people.freedesktop.org/~danvet/drm-intel into drm-fixes 2013-12-12 10:38:08 +10:00
i915_gem_stolen.c Linux 3.12-rc2 2013-09-24 09:32:53 +02:00
i915_gem_tiling.c drm/i915: prevent tiling changes on framebuffer backing storage 2013-10-16 22:04:52 +02:00
i915_gem.c drm/i915: Fix erroneous dereference of batch_obj inside reset_status 2013-12-12 10:49:05 +01:00
i915_gpu_error.c drm/i915/bdw: Update relevant error state 2013-11-08 18:09:43 +01:00
i915_ioc32.c
i915_irq.c Merge tag 'bdw-stage1-2013-11-08-v2' of git://people.freedesktop.org/~danvet/drm-intel into drm-next 2013-11-10 18:35:33 +10:00
i915_reg.h drm/i915: Make the DERRMR SRM target global GTT 2013-11-29 14:56:44 +01:00
i915_suspend.c drm/i915/vlv: use per-pipe backlight controls v2 2013-11-06 18:26:31 +01:00
i915_sysfs.c Merge tag 'drm-intel-next-2013-10-18' of git://people.freedesktop.org/~danvet/drm-intel into drm-next 2013-10-25 09:35:04 +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
intel_acpi.c ACPI: Eliminate the DEVICE_ACPI_HANDLE() macro 2013-11-14 23:17:21 +01:00
intel_bios.c i915: Use 120MHz LVDS SSC clock for gen5/gen6/gen7 2013-11-15 00:38:44 +01:00
intel_bios.h drm/i915: Make intel_dp_is_edp() less specific 2013-11-05 07:59:40 +01:00
intel_crt.c drm/i915: Use hsw_crt_get_config on BDW 2013-11-08 18:10:09 +01:00
intel_ddi.c drm/i915: Check VBT for eDP ports on VLV 2013-11-28 13:42:12 +01:00
intel_display.c drm/i915: change CRTC assertion on LCPLL disable 2013-12-13 18:47:39 +01:00
intel_dp.c drm/i915: Simplify DP vs. eDP detection 2013-11-28 13:42:25 +01:00
intel_drv.h drm/i915: fix pm init ordering 2013-12-06 13:08:15 +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: Use adjusted_mode in DSI PLL calculations 2013-09-16 23:36:38 +02:00
intel_dsi.c drm/i915: Use pipe_name() instead of the pipe number 2013-10-16 19:42:52 +02:00
intel_dsi.h drm/i915: add VLV DSI PLL Calculations 2013-09-04 17:34:48 +02:00
intel_dvo.c drm/i915/dvo: call ->mode_set callback only when the port is running 2013-11-04 16:30:33 +01:00
intel_fbdev.c drm/i915: fix open-coded DIV_ROUND_UP 2013-10-21 10:04:03 +02:00
intel_hdmi.c drm/i915/bdw: Broadwell has a max port clock of 300Mhz on HDMI 2013-11-08 18:10:01 +01:00
intel_i2c.c drm/i915: Program GMBUS Frequency based on the CDCLK for VLV. 2013-10-01 07:45:41 +02:00
intel_lvds.c drm/i915: make backlight functions take a connector 2013-11-06 17:56:28 +01:00
intel_modes.c
intel_opregion.c More ACPI and power management updates for 3.13-rc1 2013-11-20 13:25:04 -08:00
intel_overlay.c drm/i915: use pointer = k[cmz...]alloc(sizeof(*pointer), ...) pattern 2013-10-01 07:45:01 +02:00
intel_panel.c drm/i915/bdw: GEN8 backlight support 2013-11-14 09:33:09 +01:00
intel_pm.c drm/i915: get a PC8 reference when enabling the power well 2013-12-13 21:34:57 +01:00
intel_ringbuffer.c drm/i915/bdw: Add comment about gen8 HWS PGA 2013-11-14 09:33:11 +01:00
intel_ringbuffer.h drm/i915: Write RING_TAIL once per-request 2013-09-10 15:35:58 +02:00
intel_sdvo_regs.h
intel_sdvo.c drm/i915: destroy connector sysfs files earlier 2013-10-01 07:45:48 +02:00
intel_sideband.c drm/i915/vlv: add doc names to sideband file 2013-10-11 23:33:44 +02:00
intel_sprite.c Merge tag 'bdw-stage1-2013-11-08-v2' of git://people.freedesktop.org/~danvet/drm-intel into drm-next 2013-11-10 18:35:33 +10:00
intel_tv.c drm/i915/tv: add ->get_config callback 2013-11-18 22:24:33 +01:00
intel_uncore.c Merge branch 'bdw-fixes' of git://people.freedesktop.org/~danvet/drm-intel into drm-fixes 2013-12-12 10:38:08 +10:00
Kconfig drm/i915: Kconfig option to disable the legacy fbdev support 2013-10-11 23:37:23 +02:00
Makefile drm/i915: rename intel_fb.c to intel_fbdev.c 2013-10-11 23:37:33 +02:00