Daniel Vetter 4fb066ab9e drm/i915: close PM interrupt masking races in the irq handler ... Quoting Chris Wilson's more concise description: "Ah I think I see the problem. As you point out we only mask the current interrupt received, so that if we have a task pending (and so IMR != 0) we actually unmask the pending interrupt and so could receive it again before the tasklet is finally kicked off by the grumpy scheduler." We need the hw to issue PM interrupts A, B, A while the scheduler is hating us and refuses to run the rps work item. On receiving PM interrupt A we hit the WARN because dev_priv->pm_iir == PM_A | PM_B Also add a posting read as suggested by Chris to ensure proper ordering of the writes to PMIMR and PMIIR. Just in case somebody weakens write ordering. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Ben Widawsky <ben@bwidawsk.net> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Keith Packard <keithp@keithp.com>		2011-10-20 14:11:16 -07:00
..
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	Drivers: i915: Fix all space related issues.	2011-09-19 18:01:47 -07:00
i915_dma.c	Drivers: i915: Fix all space related issues.	2011-09-19 18:01:47 -07:00
i915_drv.c	Merge branch 'fix-pch-refclk' into foo	2011-10-20 14:10:43 -07:00
i915_drv.h	drm/i915: Remove "i2c_speed" nonsense from child device table	2011-10-20 14:11:15 -07:00
i915_gem_debug.c	Drivers: i915: Fix all space related issues.	2011-09-19 18:01:47 -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: Dumb down the semaphore logic	2011-09-21 14:52:41 -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: Fix unfenced alignment on pre-G33 hardware	2011-07-18 14:02:06 -07:00
i915_gem.c	Merge branch 'drm-intel-next' of git://people.freedesktop.org/~keithp/linux into drm-next	2011-09-20 09:36:22 +01:00
i915_ioc32.c	drm: convert drm_ioctl to unlocked_ioctl	2009-12-18 11:22:31 +10:00
i915_irq.c	drm/i915: close PM interrupt masking races in the irq handler	2011-10-20 14:11:16 -07:00
i915_mem.c	Drivers: i915: Fix all space related issues.	2011-09-19 18:01:47 -07:00
i915_reg.h	Merge branch 'edp-training-fixes' into drm-intel-next	2011-10-20 14:10:07 -07:00
i915_suspend.c	Drivers: i915: Fix all space related issues.	2011-09-19 18:01:47 -07:00
i915_trace_points.c	drm/i915: Add tracepoints	2009-09-23 01:05:21 +01:00
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	Drivers: i915: Fix all space related issues.	2011-09-19 18:01:47 -07:00
intel_display.c	Merge branch 'fix-pch-refclk' into foo	2011-10-20 14:10:43 -07:00
intel_dp.c	Merge branch 'edp-training-fixes' into drm-intel-next	2011-10-20 14:10:07 -07:00
intel_drv.h	Merge branch 'drm-intel-fixes' into drm-intel-next	2011-09-28 14:44:38 -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: pass ELD to HDMI/DP audio driver	2011-09-21 14:52:41 -07:00
intel_i2c.c	drm/i915: Remove redundant bit shifting from intel_gmbus_set_speed	2011-10-20 14:11:16 -07:00
intel_lvds.c	Not all systems expose a firmware or platform mechanism for changing the backlight intensity on i915, so add native driver support.	2011-08-15 12:10:25 -07:00
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	Drivers: i915: Fix all space related issues.	2011-09-19 18:01:47 -07:00
intel_ringbuffer.c	drm/i915: Dumb down the semaphore logic	2011-09-21 14:52:41 -07:00
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: Remove redundant bit shifting from intel_gmbus_set_speed	2011-10-20 14:11:16 -07:00
intel_tv.c	Drivers: i915: Fix all space related issues.	2011-09-19 18:01:47 -07:00
Makefile	drm/i915: Split i915_gem_execbuffer into its own file.	2010-11-25 21:19:25 +00:00