Chris Wilson f0a1fb10e5 drm/i915: Insert a command barrier on BLT/BSD cache flushes ... This looked like an odd regression from commit ec5cc0f9b0 Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Thu Jun 12 10:28:55 2014 +0100 drm/i915: Restrict GPU boost to the RCS engine but in reality it undercovered a much older coherency bug. The issue that boosting the GPU frequency on the BCS ring was masking was that we could wake the CPU up after completion of a BCS batch and inspect memory prior to the write cache being fully evicted. In order to serialise the breadcrumb interrupt (and so ensure that the CPU's view of memory is coherent) we need to perform a post-sync operation in the MI_FLUSH_DW. v2: Fix all the MI_FLUSH_DW (bsd plus the duplication in execlists). Also fix the invalidate_domains mask in gen8_emit_flush() for ring != VCS. Testcase: gpuX-rcs-gpu-read-after-write Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: stable@vger.kernel.org Acked-by: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Jani Nikula <jani.nikula@intel.com>		2015-02-09 20:03:15 +02:00
..
amd	drm/amdkfd: change amdkfd version to 0.7.1	2015-01-22 17:53:03 +02:00
armada	Merge tag 'topic/core-stuff-2014-12-19' of git://anongit.freedesktop.org/drm-intel into drm-next	2015-01-09 09:13:41 +10:00
ast	drm/fb-helper: Propagate errors from initial config failure	2015-01-21 14:57:03 +01:00
atmel-hlcdc	drm: add Atmel HLCDC Display Controller support	2015-01-21 09:46:02 +01:00
bochs	drm/fb-helper: Propagate errors from initial config failure	2015-01-21 14:57:03 +01:00
bridge	imx-drm: encoder prepare/mode_set must use adjusted mode	2015-01-07 19:15:03 +01:00
cirrus	drm/fb-helper: Propagate errors from initial config failure	2015-01-21 14:57:03 +01:00
exynos	Merge branch 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next	2015-01-27 09:38:29 +10:00
gma500	drm/fb-helper: Propagate errors from initial config failure	2015-01-21 14:57:03 +01:00
i2c	drm: adv7511: Remove interlaced mode check	2014-12-23 12:01:47 +02:00
i810
i915	drm/i915: Insert a command barrier on BLT/BSD cache flushes	2015-02-09 20:03:15 +02:00
imx	imx-drm: core: handling of DI clock flags to ipu_crtc_mode_set()	2015-01-07 21:32:07 +01:00
mga
mgag200	drm/fb-helper: Propagate errors from initial config failure	2015-01-21 14:57:03 +01:00
msm	drm/fb-helper: Propagate errors from initial config failure	2015-01-21 14:57:03 +01:00
nouveau	Merge tag 'topic/core-stuff-2015-01-23' of git://anongit.freedesktop.org/drm-intel into drm-next	2015-01-27 08:54:11 +10:00
omapdrm	drm/fb-helper: Propagate errors from initial config failure	2015-01-21 14:57:03 +01:00
panel	drm: panel: simple-panel: add bus format information for foxlink panel	2015-01-21 09:45:56 +01:00
qxl	drm/fb-helper: Propagate errors from initial config failure	2015-01-21 14:57:03 +01:00
r128
radeon	Merge branch 'drm-next-3.20' of git://people.freedesktop.org/~agd5f/linux into drm-next	2015-01-27 09:39:58 +10:00
rcar-du	Merge branch 'drm/next/du' of git://linuxtv.org/pinchartl/fbdev into drm-next	2015-01-21 10:16:24 +10:00
rockchip	Merge branch 'drm-next' of https://github.com/markyzq/kernel-drm-rockchip into drm-next	2015-01-27 10:05:44 +10:00
savage
shmobile	Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux	2014-12-15 15:52:01 -08:00
sis
sti	Merge branch 'drm-sti-next-add-dvo' of git://git.linaro.org/people/benjamin.gaignard/kernel into drm-next	2015-01-22 09:59:25 +10:00
tdfx
tegra	Merge tag 'topic/core-stuff-2014-12-19' of git://anongit.freedesktop.org/drm-intel into drm-next	2015-01-09 09:13:41 +10:00
tilcdc	Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux	2014-12-15 15:52:01 -08:00
ttm	drm/ttm: optionally move duplicates to a separate list	2014-12-03 18:26:52 -05:00
udl	drm/fb-helper: Propagate errors from initial config failure	2015-01-21 14:57:03 +01:00
via
vmwgfx	drm/ttm: optionally move duplicates to a separate list	2014-12-03 18:26:52 -05:00
ati_pcigart.c
drm_agpsupport.c
drm_atomic.c	drm: Add rotation value to plane state	2015-01-27 18:48:53 +10:00
drm_atomic_helper.c	drm/atomic: atomic_check functions	2015-01-05 13:55:27 +01:00
drm_auth.c
drm_bufs.c
drm_cache.c	drm/cache: Use wbinvd helpers	2014-12-16 08:56:55 +01:00
drm_context.c
drm_crtc.c	drm: fix drm_display_info_set_bus_formats kernel doc header	2015-01-27 09:11:59 +10:00
drm_crtc_helper.c	drm/atomic: Introduce state->obj backpointers	2014-12-17 20:23:23 +01:00
drm_crtc_internal.h	drm/atomic: Hide drm.ko internal interfaces	2015-01-05 13:55:30 +01:00
drm_debugfs.c
drm_dma.c
drm_dp_helper.c	drm/dp: retry AUX transactions 32 times (v1.1)	2014-12-09 09:56:44 +10:00
drm_dp_mst_topology.c	drm/tile: expose the tile property to userspace (v3)	2014-12-09 09:56:48 +10:00
drm_drv.c	drm: add atomic properties	2015-01-05 13:54:38 +01:00
drm_edid.c	Merge tag 'topic/core-stuff-2014-12-10' of git://anongit.freedesktop.org/drm-intel into drm-next	2014-12-11 10:12:57 +10:00
drm_edid_load.c
drm_encoder_slave.c
drm_fb_cma_helper.c
drm_fb_helper.c	Merge tag 'topic/core-stuff-2015-01-23' of git://anongit.freedesktop.org/drm-intel into drm-next	2015-01-27 08:54:11 +10:00
drm_flip_work.c
drm_fops.c	drm: Make drm_read() more robust against multithreaded races	2015-01-21 14:57:03 +01:00
drm_gem.c
drm_gem_cma_helper.c
drm_global.c
drm_hashtab.c
drm_info.c	drm/info: Remove unused code	2014-12-16 18:44:34 +01:00
drm_internal.h	drm/info: Remove unused code	2014-12-16 18:44:34 +01:00
drm_ioc32.c
drm_ioctl.c	drm: Ensure universal_planes is set for atomic	2015-01-05 13:55:30 +01:00
drm_irq.c	Merge tag 'topic/core-stuff-2014-12-19' of git://anongit.freedesktop.org/drm-intel into drm-next	2015-01-09 09:13:41 +10:00
drm_legacy.h
drm_lock.c
drm_memory.c
drm_mipi_dsi.c
drm_mm.c
drm_modes.c	imx-drm mode fixup support, imx-hdmi bridge conversion and imx-drm cleanup	2015-01-21 10:17:16 +10:00
drm_modeset_lock.c
drm_of.c
drm_panel.c
drm_pci.c
drm_plane_helper.c	Merge branch 'topic/core-stuff' into topic/atomic-core	2014-12-17 20:24:02 +01:00
drm_platform.c
drm_prime.c
drm_probe_helper.c	drm/probe-helper: clamp unknown connector status in the poll work	2015-01-22 06:11:39 +01:00
drm_rect.c
drm_scatter.c
drm_sysfs.c
drm_trace.h
drm_trace_points.c
drm_vm.c
drm_vma_manager.c
Kconfig	drm/radeon: make MMU_NOTIFIER optional	2015-01-22 10:42:21 -05:00
Makefile	Merge remote-tracking branch 'origin/master' into drm-next	2015-01-22 10:44:41 +10:00