linux_dsm_epyc7002/drivers/gpu/drm/i915
Eric Anholt 42ff6572e5 drm/i915: Work around gen7 BLT ring synchronization issues.
Previous to this commit, testing easily reproduced a failure where the
seqno would apparently arrive after the IRQ associated with it, with test programs as simple as:

for (;;) {
    glCopyPixels(0, 0, 1, 1);
    glFinish();
}

Various workarounds we've seen for previous generations didn't work to
fix this issue, so until new information comes in, replace the IRQ
waits on the BLT ring with polling.

Signed-off-by: Eric Anholt <eric@anholt.net>
Tested-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Acked-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Keith Packard <keithp@keithp.com>
2012-01-03 09:31:15 -08:00
..
dvo_ch7xxx.c Drivers: i915: Fix all space related issues. 2011-09-19 18:01:47 -07:00
dvo_ch7017.c Drivers: i915: Fix all space related issues. 2011-09-19 18:01:47 -07:00
dvo_ivch.c Drivers: i915: Fix all space related issues. 2011-09-19 18:01:47 -07:00
dvo_sil164.c Drivers: i915: Fix all space related issues. 2011-09-19 18:01:47 -07:00
dvo_tfp410.c Drivers: i915: Fix all space related issues. 2011-09-19 18:01:47 -07:00
dvo.h drm/i915: Subclass intel_encoder. 2010-08-09 11:24:28 -07:00
i915_debugfs.c drm/i915: drpc debugfs update for gen6 2012-01-03 09:09:45 -08:00
i915_dma.c drm/i915: add color key support v4 2012-01-03 09:31:12 -08:00
i915_drv.c drm/i915: Clean up multi-threaded forcewake patch 2012-01-03 09:09:45 -08:00
i915_drv.h drm/i915: add SNB and IVB video sprite support v6 2012-01-03 09:31:09 -08:00
i915_gem_debug.c drm/i915: drop KM_USER0 argument to k(un)map_atomic 2011-10-20 15:26:37 -07:00
i915_gem_evict.c Drivers: i915: Fix all space related issues. 2011-09-19 18:01:47 -07:00
i915_gem_execbuffer.c drm/i915: Force sync command ordering (Gen6+) 2012-01-03 09:09:44 -08:00
i915_gem_gtt.c drm/i915: ILK + VT-d workaround 2011-10-20 15:26:39 -07:00
i915_gem_tiling.c drm/i915: simplify swapin/out swizzle checking a bit 2011-10-20 14:11:18 -07:00
i915_gem.c drm/i915: Do the fallback non-IRQ wait in ring throttle, too. 2012-01-03 09:31:14 -08:00
i915_ioc32.c drm: convert drm_ioctl to unlocked_ioctl 2009-12-18 11:22:31 +10:00
i915_irq.c Merge branch 'drm-intel-next' of git://people.freedesktop.org/~keithp/linux into drm-core-next 2012-01-03 09:34:43 +00:00
i915_mem.c Drivers: i915: Fix all space related issues. 2011-09-19 18:01:47 -07:00
i915_reg.h drm/i915: Set two chicken bits implicated in missed IRQs on Ivybridge. 2012-01-03 09:31:13 -08:00
i915_suspend.c drm/i915: Ivybridge still has fences! 2011-11-03 09:20:00 -07:00
i915_trace_points.c
i915_trace.h Drivers: i915: Fix all space related issues. 2011-09-19 18:01:47 -07:00
intel_acpi.c Drivers: i915: Fix all space related issues. 2011-09-19 18:01:47 -07:00
intel_bios.c drm/i915: Remove "i2c_speed" nonsense from child device table 2011-10-20 14:11:15 -07:00
intel_bios.h drm/i915: Remove "i2c_speed" nonsense from child device table 2011-10-20 14:11:15 -07:00
intel_crt.c drm/i915: use transcoder select bits on VGA and HDMI on CPT 2011-10-20 15:26:43 -07:00
intel_display.c drm/i915: Set two chicken bits implicated in missed IRQs on Ivybridge. 2012-01-03 09:31:13 -08:00
intel_dp.c drm/i915: DisplayPort hot remove notification to audio driver 2011-12-19 19:15:48 -08:00
intel_drv.h drm/i915: add color key support v4 2012-01-03 09:31:12 -08:00
intel_dvo.c drm/i915: cleanup per-pipe reg usage 2011-02-07 21:17:15 +00:00
intel_fb.c drm/i915: add SNB and IVB video sprite support v6 2012-01-03 09:31:09 -08:00
intel_hdmi.c drm/i915: HDMI hot remove notification to audio driver 2011-12-19 19:15:48 -08:00
intel_i2c.c gpu: Add export.h as required to drivers/gpu files. 2011-10-31 19:32:03 -04:00
intel_lvds.c drm/i915: no-lvds quirk for ASUS AT5NM10T-I 2011-12-16 08:49:54 -08:00
intel_modes.c drm/i915: pass ELD to HDMI/DP audio driver 2011-09-21 14:52:41 -07:00
intel_opregion.c Drivers: i915: Fix all space related issues. 2011-09-19 18:01:47 -07:00
intel_overlay.c Drivers: i915: Fix all space related issues. 2011-09-19 18:01:47 -07:00
intel_panel.c drm/i915: Treat pre-gen4 backlight duty cycle value consistently 2011-11-23 13:07:13 -08:00
intel_ringbuffer.c drm/i915: Work around gen7 BLT ring synchronization issues. 2012-01-03 09:31:15 -08:00
intel_ringbuffer.h drm/i915: Dumb down the semaphore logic 2011-09-21 14:52:41 -07:00
intel_sdvo_regs.h Drivers: i915: Fix all space related issues. 2011-09-19 18:01:47 -07:00
intel_sdvo.c drm/i915/sdvo: Include LVDS panels for the IS_DIGITAL check 2011-12-16 08:49:56 -08:00
intel_sprite.c drm/i915: add color key support v4 2012-01-03 09:31:12 -08:00
intel_tv.c Drivers: i915: Fix all space related issues. 2011-09-19 18:01:47 -07:00
Makefile drm/i915: add SNB and IVB video sprite support v6 2012-01-03 09:31:09 -08:00