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linux-hardened/drivers/gpu/drm/i915
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Chris Wilson 1cf0ba1474 drm/i915: Flush request queue when waiting for ring space 
During the review of

commit 1f70999f90
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Mon Jan 27 22:43:07 2014 +0000

    drm/i915: Prevent recursion by retiring requests when the ring is full

Ville raised the point that our interaction with request->tail was
likely to foul up other uses elsewhere (such as hang check comparing
ACTHD against requests).

However, we also need to restore the implicit retire requests that certain
test cases depend upon (e.g. igt/gem_exec_lut_handle), this raises the
spectre that the ppgtt will randomly call i915_gpu_idle() and recurse
back into intel_ring_begin().

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78023
Reviewed-by: Brad Volkin <bradley.d.volkin@intel.com>
[danvet: Remove now unused 'tail' variable as spotted by Brad.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-08 01:23:34 +02:00
..
dvo.h
dvo_ch7xxx.c drm/i915: Remove spurious semicolons 2014-04-09 21:54:33 +02:00
dvo_ch7017.c
dvo_ivch.c drm/i915: Remove spurious semicolons 2014-04-09 21:54:33 +02:00
dvo_ns2501.c drm/i915: Remove spurious semicolons 2014-04-09 21:54:33 +02:00
dvo_sil164.c drm/i915: Remove spurious semicolons 2014-04-09 21:54:33 +02:00
dvo_tfp410.c drm/i915: Remove spurious semicolons 2014-04-09 21:54:33 +02:00
i915_cmd_parser.c Revert "drm/i915: fix build warning on 32-bit (v2)" 2014-05-05 09:09:19 +02:00
i915_debugfs.c drm/i915: Avoid NULL ctx->obj dereference in debugfs/i915_context_info 2014-05-05 10:56:51 +02:00
i915_dma.c drm/i915: remove extraneous VGA power domain put calls 2014-05-05 09:09:17 +02:00
i915_drv.c drm/i915: vlv: add runtime PM support 2014-05-07 10:01:39 +02:00
i915_drv.h drm/i915: Flush request queue when waiting for ring space 2014-05-08 01:23:34 +02:00
i915_gem.c drm/i915: Flush request queue when waiting for ring space 2014-05-08 01:23:34 +02:00
i915_gem_context.c Merge tag 'drm-intel-next-2014-04-16' of git://anongit.freedesktop.org/drm-intel into drm-next 2014-05-01 09:11:37 +10:00
i915_gem_debug.c drm/i915: prefer struct drm_i915_private to drm_i915_private_t 2014-03-31 15:34:21 +02:00
i915_gem_dmabuf.c drm/i915: dma_buf_vunmap is presumed not to fail, don't let it 2014-04-09 15:03:05 +02:00
i915_gem_evict.c drm/i915: prefer struct drm_i915_private to drm_i915_private_t 2014-03-31 15:34:21 +02:00
i915_gem_execbuffer.c drm/i915: Support 64b relocations 2014-05-05 16:04:23 +02:00
i915_gem_gtt.c drm/i915: Use topdown allocation for PPGTT PDEs on gen6/7 2014-05-07 10:01:41 +02:00
i915_gem_gtt.h drm/i915/chv: PPAT setup for Cherryview 2014-05-06 18:29:34 +02:00
i915_gem_stolen.c drm/i915: restrict vt-d stolen memory workaround to pre-gen8 2014-03-31 10:45:34 +02:00
i915_gem_tiling.c drm/i915: prefer struct drm_i915_private to drm_i915_private_t 2014-03-31 15:34:21 +02:00
i915_gpu_error.c drm/i915: Move semaphore specific ring members to struct 2014-05-05 10:56:52 +02:00
i915_ioc32.c
i915_irq.c drm/i915: Make sprite updates atomic 2014-05-06 10:18:02 +02:00
i915_params.c drm/i915: Add debug module option for VTd validation 2014-04-03 11:23:11 +02:00
i915_reg.h drm/i915: add various missing GTI/Gunit register definitions 2014-05-07 10:01:38 +02:00
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: get a runtime PM ref for debugfs entries where needed 2014-05-05 09:08:55 +02:00
i915_trace.h drm/i915: Add pipe update trace points 2014-05-06 10:18:03 +02:00
i915_trace_points.c
i915_ums.c drm/i915: Only restore backlight combination mode reg for ums 2014-01-24 17:22:45 +01:00
intel_acpi.c Merge branch 'acpi-dsm' 2014-01-12 23:45:52 +01:00
intel_bios.c drm/i915: Validate VBT header before trusting it 2014-05-05 09:08:59 +02:00
intel_bios.h Merge tag 'drm-intel-next-2014-04-16' of git://anongit.freedesktop.org/drm-intel into drm-next 2014-05-01 09:11:37 +10:00
intel_crt.c drm/i915/crt: Remove ->mode_set callback 2014-05-05 10:56:59 +02:00
intel_ddi.c drm/i915: fix WARNs when reading DDI state while suspended 2014-04-01 22:53:45 +02:00
intel_display.c drm/i915: Remove useless checks from primary enable/disable 2014-05-06 10:18:04 +02:00
intel_dp.c drm/i915: vlv: check port power domain instead of only D0 for eDP VDD on 2014-05-05 09:09:03 +02:00
intel_drv.h drm/i915: Make sprite updates atomic 2014-05-06 10:18:02 +02:00
intel_dsi.c drm/i915: Enable RANDOM resolution support for MIPI panels 2014-04-09 21:54:31 +02:00
intel_dsi.h drm/i915: Parameterize the Clockstop and escape_clk_div 2014-04-09 21:54:29 +02:00
intel_dsi_cmd.c drm/i915: Send DPI command explicitely in LP mode 2014-04-09 21:54:30 +02:00
intel_dsi_cmd.h drm/i915: Send DPI command explicitely in LP mode 2014-04-09 21:54:30 +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_dvo.c drm/i915/dvo: Remove ->mode_set callback 2014-05-05 10:56:55 +02:00
intel_fbdev.c drm/i915: Discard BIOS framebuffers too small to accommodate chosen mode 2014-04-24 13:34:37 +03:00
intel_hdmi.c Merge tag 'drm-intel-next-2014-04-16' of git://anongit.freedesktop.org/drm-intel into drm-next 2014-05-01 09:11:37 +10:00
intel_i2c.c drm/i915: Disable dp aux irq on g4x 2014-02-07 16:40:07 +01:00
intel_lvds.c drm/i915: Don't set the 8to6 dither flag when not scaling 2014-04-13 11:59:32 +02:00
intel_modes.c
intel_opregion.c Merge tag 'drm-intel-fixes-2014-02-06' of ssh://git.freedesktop.org/git/drm-intel into drm-next 2014-02-11 12:57:27 +10:00
intel_overlay.c Merge tag 'drm-intel-fixes-2014-04-04' of git://anongit.freedesktop.org/drm-intel into drm-next 2014-04-05 16:14:21 +10:00
intel_panel.c Merge tag 'drm-intel-next-2014-04-16' of git://anongit.freedesktop.org/drm-intel into drm-next 2014-05-01 09:11:37 +10:00
intel_pm.c drm/i915: Merge LP1+ watermarks in safer way 2014-05-06 10:18:04 +02:00
intel_ringbuffer.c drm/i915: Flush request queue when waiting for ring space 2014-05-08 01:23:34 +02:00
intel_ringbuffer.h drm/i915: Support 64b execbuf 2014-05-05 16:01:58 +02:00
intel_sdvo.c drm/i915/sdvo: Remove ->mode_set callback 2014-05-05 10:57:00 +02:00
intel_sdvo_regs.h drm/i915: use __packed instead of __attribute__((packed)) 2013-12-03 18:19:49 +01:00
intel_sideband.c drm/i915: Warn when DPIO read returns 0xffffffff 2014-04-03 11:28:39 +02:00
intel_sprite.c drm/i915: Add pipe update trace points 2014-05-06 10:18:03 +02:00
intel_tv.c drm/i915/tv: Remove ->mode_set callback 2014-05-05 10:56:59 +02:00
intel_uncore.c drm/i915/bdw: enable eDRAM. 2014-05-05 09:09:23 +02:00
Kconfig Merge tag 'drm-intel-next-2014-04-16' of git://anongit.freedesktop.org/drm-intel into drm-next 2014-05-01 09:11:37 +10:00
Makefile Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next 2014-03-18 09:43:56 +01:00