Chris Wilson 7c17d37737 drm/i915: Use ordered seqno write interrupt generation on gen8+ execlists ... Broadwell and later currently use the same unordered command sequence to update the seqno in the HWS status page and then assert the user interrupt. We should apply the w/a from legacy (where we do an mmio read to delay the seqno read after the interrupt), but this is not enough to enforce coherent seqno visibilty on Skylake. Rather than search for the proper post-interrupt seqno barrier, use a strongly ordered command sequence to write the seqno, then assert the user interrupt from the ring. v2: Move around the wa tail dwords to avoid adding duplicate code. v3: Add references, comments on workarounds and bit5 check. References: https://bugs.freedesktop.org/show_bug.cgi?id=93693 Testcase: igt/gem_ring_sync_loop #skl Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@intel.com> Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1453297415-17793-1-git-send-email-mika.kuoppala@intel.com		2016-01-21 11:53:09 +02:00
..
amd	drm/amdgpu: add missing irq.h include	2016-01-14 08:07:55 +10:00
armada	Merge branch 'drm-armada-devel' of git://ftp.arm.linux.org.uk/~rmk/linux-arm into drm-next	2015-12-23 09:19:58 +10:00
ast	drm: Pass 'name' to drm_encoder_init()	2015-12-11 09:13:20 +01:00
atmel-hlcdc	drm: use dev_name as default unique name in drm_dev_alloc()	2015-12-15 13:56:06 +01:00
bochs	drm/bochs: Constify function pointer structs	2015-12-15 13:42:36 +01:00
bridge	Merge tag 'topic/drm-misc-2016-01-17' of git://anongit.freedesktop.org/drm-intel into drm-next	2016-01-18 07:01:16 +10:00
cirrus	drm/cirrus: Constify function pointer structs	2015-12-15 13:43:59 +01:00
etnaviv	drm/etnaviv: fix workaround for GC500	2016-01-07 11:57:57 +01:00
exynos	drm/exynos: fix kernel panic issue at drm releasing	2016-01-13 00:16:39 +09:00
fsl-dcu	drm: use dev_name as default unique name in drm_dev_alloc()	2015-12-15 13:56:06 +01:00
gma500	drm/gma500: use to_pci_dev()	2016-01-04 07:57:38 +01:00
i2c	Merge tag 'topic/drm-misc-2016-01-17' of git://anongit.freedesktop.org/drm-intel into drm-next	2016-01-18 07:01:16 +10:00
i810
i915	drm/i915: Use ordered seqno write interrupt generation on gen8+ execlists	2016-01-21 11:53:09 +02:00
imx	drm/fb_cma_helper: Remove implicit call to disable_unused_functions	2016-01-15 11:16:15 +01:00
mga
mgag200	drm/mgag200: Constify function pointer structs	2015-12-15 13:46:35 +01:00
msm	Merge tag 'topic/drm-misc-2015-12-14' of git://anongit.freedesktop.org/drm-intel into drm-next	2015-12-15 10:40:15 +10:00
nouveau	drm: nouveau: fix nouveau_debugfs_init prototype	2016-01-14 07:56:41 +10:00
omapdrm	drm/omap: remove obsolete manager assignment	2015-12-31 11:25:48 +02:00
panel	drm/panel: simple: Add QiaoDian qd43003c0-40	2015-12-16 18:15:26 +01:00
qxl	drm/qxl: use to_qxl_bo macro	2015-12-15 13:39:40 +01:00
r128
radeon	Merge tag 'topic/drm-misc-2016-01-17' of git://anongit.freedesktop.org/drm-intel into drm-next	2016-01-18 07:01:16 +10:00
rcar-du	drm: Constify drm_encoder_slave_funcs	2015-12-15 13:41:17 +01:00
rockchip	drm: rockchip: Support Synopsys DW MIPI DSI	2016-01-06 16:16:39 +08:00
savage
shmobile	drm: Do not set connector->encoder in drivers	2016-01-13 13:30:53 +01:00
sis
sti	drm/fb_cma_helper: Remove implicit call to disable_unused_functions	2016-01-15 11:16:15 +01:00
tdfx
tegra	Merge tag 'topic/drm-misc-2016-01-17' of git://anongit.freedesktop.org/drm-intel into drm-next	2016-01-18 07:01:16 +10:00
tilcdc	drm/fb_cma_helper: Remove implicit call to disable_unused_functions	2016-01-15 11:16:15 +01:00
ttm	drm/ttm: add ttm_bo_move_to_lru_tail function v2	2016-01-13 12:21:21 -05:00
udl	drm/udl: Constify function pointer structs	2015-12-15 13:48:54 +01:00
vc4	Merge tag 'topic/drm-misc-2016-01-17' of git://anongit.freedesktop.org/drm-intel into drm-next	2016-01-18 07:01:16 +10:00
vgem
via
virtio	drm: Drop drm_helper_probe_single_connector_modes_nomerge()	2015-12-11 09:32:53 +01:00
vmwgfx	drm/vmwgfx: Fix a width / pitch mismatch on framebuffer updates	2016-01-14 07:56:46 +10:00
ati_pcigart.c
drm_agpsupport.c
drm_atomic_helper.c	drm/atomic: Remove drm_atomic_connectors_for_crtc.	2016-01-06 16:37:39 +01:00
drm_atomic.c	drm/atomic: Remove drm_atomic_connectors_for_crtc.	2016-01-06 16:37:39 +01:00
drm_auth.c
drm_bridge.c	drm/bridge: Improve kerneldoc	2015-12-08 16:07:53 +01:00
drm_bufs.c
drm_cache.c
drm_context.c
drm_crtc_helper.c	drm: Add crtc->name and use it in debug messages	2015-12-11 09:13:48 +01:00
drm_crtc_internal.h
drm_crtc.c	drm: Do not set connector->encoder in drivers	2016-01-13 13:30:53 +01:00
drm_debugfs.c
drm_dma.c
drm_dp_helper.c
drm_dp_mst_topology.c	drm/dp/mst: fix in RAD element access	2016-01-04 12:11:20 -05:00
drm_drv.c	drm: move MODULE_PARM_DESC to other file	2016-01-08 15:32:29 +01:00
drm_edid_load.c
drm_edid.c	drm/edid: index CEA/HDMI mode tables using the VIC	2016-01-08 15:30:28 +01:00
drm_encoder_slave.c	drm: Constify drm_encoder_slave_funcs	2015-12-15 13:41:17 +01:00
drm_fb_cma_helper.c	drm/fb_cma_helper: Remove implicit call to disable_unused_functions	2016-01-15 11:16:15 +01:00
drm_fb_helper.c	drm/fb-helper: Use proper plane mask for fb cleanup	2015-12-21 09:54:49 +01:00
drm_flip_work.c
drm_fops.c	Linux 4.4-rc4	2015-12-08 11:04:26 +10:00
drm_gem_cma_helper.c	drm: Use the driver's gem_object_free function from CMA helpers.	2015-12-15 10:23:44 +01:00
drm_gem.c	drm: Remove opencoded drm_gem_object_release_handle()	2016-01-05 16:23:09 +01:00
drm_global.c
drm_hashtab.c
drm_info.c
drm_internal.h
drm_ioc32.c
drm_ioctl.c
drm_irq.c	drm: move MODULE_PARM_DESC to other file	2016-01-08 15:32:29 +01:00
drm_legacy.h
drm_lock.c	signals: kill block_all_signals() and unblock_all_signals()	2015-11-06 17:50:42 -08:00
drm_memory.c
drm_mipi_dsi.c	drm/dsi: Add Turn On/Shutdown Peripheral command helpers	2015-11-24 10:25:14 +01:00
drm_mm.c
drm_modes.c	drm/doc: Convert to markdown	2015-12-15 10:22:26 +01:00
drm_modeset_lock.c	drm/doc: Convert to markdown	2015-12-15 10:22:26 +01:00
drm_of.c
drm_panel.c
drm_pci.c	drm: add drm_pcie_get_max_link_width helper (v2)	2015-12-21 16:42:31 -05:00
drm_plane_helper.c	drm: Pass 'name' to drm_universal_plane_init()	2015-12-11 09:13:10 +01:00
drm_platform.c
drm_prime.c	drm/doc: Convert to markdown	2015-12-15 10:22:26 +01:00
drm_probe_helper.c	drm: Don't overwrite UNVERFIED mode status to OK	2015-12-15 11:00:10 +10:00
drm_rect.c	drm: Add "prefix" parameter to drm_rect_debug_print()	2015-11-24 11:47:46 +01:00
drm_scatter.c
drm_sysfs.c	drm/sysfs: use kobj_to_dev()	2016-01-13 16:43:07 +01:00
drm_trace_points.c
drm_trace.h
drm_vm.c
drm_vma_manager.c
Kconfig	Merge branch 'drm-next-4.5' of git://people.freedesktop.org/~agd5f/linux into drm-next	2015-12-23 14:15:26 +10:00
Makefile	drm/etnaviv: add initial etnaviv DRM driver	2015-12-15 14:48:02 +01:00