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abb0deacb5a6713b918ac6395182cb27bb88be69
linux/drivers/gpu/drm
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Chris Wilson abb0deacb5 drm/i915: Fallback to single PAGE_SIZE segments for DMA remapping 
If we at first do not succeed with attempting to remap our physical
pages using a coalesced scattergather list, try again with one
scattergather entry per page. This should help with swiotlb as it uses a
limited buffer size and only searches for contiguous chunks within its
buffer aligned up to the next boundary - i.e. we may prematurely cause a
failure as we are unable to utilize the unused space between large
chunks and trigger an error such as:

	 i915 0000:00:02.0: swiotlb buffer is full (sz: 1630208 bytes)

Reported-by: Juergen Gross <jgross@suse.com>
Tested-by: Juergen Gross <jgross@suse.com>
Fixes: 871dfbd67d ("drm/i915: Allow compaction upto SWIOTLB max segment size")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: <drm-intel-fixes@lists.freedesktop.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20161219124346.550-1-chris@chris-wilson.co.uk
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
(cherry picked from commit d766ef5300)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2016-12-20 16:30:47 +02:00
..
amd
drm/irq: Unexport drm_vblank_on/off
2016-11-15 23:33:48 +01:00
arc
drm: define drm_compat_ioctl NULL on CONFIG_COMPAT=n and reduce #ifdefs
2016-11-02 11:33:47 -04:00
arm
Merge branch 'drm-tda998x-mali' of git://git.armlinux.org.uk/~rmk/linux-arm into drm-next
2016-11-17 08:55:26 +10:00
armada
drm/armada: use DRM_FB_HELPER_DEFAULT_OPS for fb_ops
2016-11-14 07:54:13 +01:00
ast
drm/ast: free correct pointer in astfb_create() error paths
2016-11-14 07:45:16 +01:00
atmel-hlcdc
drm: define drm_compat_ioctl NULL on CONFIG_COMPAT=n and reduce #ifdefs
2016-11-02 11:33:47 -04:00
bochs
drm/bochs: use DRM_FB_HELPER_DEFAULT_OPS for fb_ops
2016-11-14 07:54:38 +01:00
bridge
drm/bridge: analogix_dp: return error if transfer none byte
2016-11-16 11:16:13 +05:30
cirrus
Merge tag 'topic/drm-misc-2016-11-10' of git://anongit.freedesktop.org/drm-intel into drm-next
2016-11-11 09:28:44 +10:00
etnaviv
drm: define drm_compat_ioctl NULL on CONFIG_COMPAT=n and reduce #ifdefs
2016-11-02 11:33:47 -04:00
exynos
drm/exynos: use DRM_FB_HELPER_DEFAULT_OPS for fb_ops
2016-11-14 07:54:50 +01:00
fsl-dcu
drm: define drm_compat_ioctl NULL on CONFIG_COMPAT=n and reduce #ifdefs
2016-11-02 11:33:47 -04:00
gma500
drm/gma500: use DRM_FB_HELPER_DEFAULT_OPS for fb_ops
2016-11-14 08:01:01 +01:00
hisilicon
drm: move allocation out of drm_get_format_name()
2016-11-12 14:19:38 +01:00
i2c
Merge branch 'drm-tda998x-mali' of git://git.armlinux.org.uk/~rmk/linux-arm into drm-next
2016-11-17 08:55:26 +10:00
i810
drm: define drm_compat_ioctl NULL on CONFIG_COMPAT=n and reduce #ifdefs
2016-11-02 11:33:47 -04:00
i915
drm/i915: Fallback to single PAGE_SIZE segments for DMA remapping
2016-12-20 16:30:47 +02:00
imx
drm/imx: Switch to drm_fb_cma_prepare_fb() helper
2016-11-15 08:25:06 +01:00
mediatek
drm/irq: Unexport drm_vblank_count
2016-11-15 23:33:47 +01:00
mga
…
mgag200
Merge tag 'topic/drm-misc-2016-11-10' of git://anongit.freedesktop.org/drm-intel into drm-next
2016-11-11 09:28:44 +10:00
msm
drm/msm: use DRM_FB_HELPER_DEFAULT_OPS for fb_ops
2016-11-14 07:58:04 +01:00
nouveau
drm/nouveau: Use drm_crtc_vblank_off/on
2016-11-15 23:33:37 +01:00
omapdrm
drm/omapdrm: use DRM_FB_HELPER_DEFAULT_OPS for fb_ops
2016-11-14 07:58:15 +01:00
panel
…
qxl
drm/qxl: use DRM_FB_HELPER_DEFAULT_OPS for fb_ops
2016-11-14 07:55:33 +01:00
r128
…
radeon
drm/radeon: use DRM_FB_HELPER_DEFAULT_OPS for fb_ops
2016-11-14 07:56:52 +01:00
rcar-du
Merge branch 'drm/next/du' of git://linuxtv.org/pinchartl/media into drm-next
2016-11-16 09:39:21 +10:00
rockchip
drm/rockchip: use DRM_FB_HELPER_DEFAULT_OPS for fb_ops
2016-11-14 07:56:47 +01:00
savage
drm: define drm_compat_ioctl NULL on CONFIG_COMPAT=n and reduce #ifdefs
2016-11-02 11:33:47 -04:00
shmobile
drm: define drm_compat_ioctl NULL on CONFIG_COMPAT=n and reduce #ifdefs
2016-11-02 11:33:47 -04:00
sis
drm: define drm_compat_ioctl NULL on CONFIG_COMPAT=n and reduce #ifdefs
2016-11-02 11:33:47 -04:00
sti
Merge tag 'topic/drm-misc-2016-11-10' of git://anongit.freedesktop.org/drm-intel into drm-next
2016-11-11 09:28:44 +10:00
sun4i
Merge tag 'drm-misc-next-2016-11-16' of git://anongit.freedesktop.org/git/drm-misc into drm-next
2016-11-17 08:02:46 +10:00
tdfx
drm: define drm_compat_ioctl NULL on CONFIG_COMPAT=n and reduce #ifdefs
2016-11-02 11:33:47 -04:00
tegra
drm/tegra: use DRM_FB_HELPER_DEFAULT_OPS for fb_ops
2016-11-14 07:56:58 +01:00
tilcdc
drm: define drm_compat_ioctl NULL on CONFIG_COMPAT=n and reduce #ifdefs
2016-11-02 11:33:47 -04:00
ttm
drm/ttm: fix ttm_bo_wait
2016-11-09 00:46:04 +05:30
udl
drm/udl: use DRM_FB_HELPER_DEFAULT_OPS for fb_ops
2016-11-14 07:57:59 +01:00
vc4
Merge tag 'drm-vc4-next-2016-11-16' of https://github.com/anholt/linux into drm-next
2016-11-17 09:43:56 +10:00
vgem
dma-buf: Rename struct fence to dma_fence
2016-10-25 14:40:39 +02:00
via
drm: define drm_compat_ioctl NULL on CONFIG_COMPAT=n and reduce #ifdefs
2016-11-02 11:33:47 -04:00
virtio
drm/virtio: use DRM_FB_HELPER_DEFAULT_OPS for fb_ops
2016-11-14 07:58:10 +01:00
vmwgfx
drm: move allocation out of drm_get_format_name()
2016-11-12 14:19:38 +01:00
zte
drm: zte: checking for NULL instead of IS_ERR()
2016-11-15 11:00:42 +01:00
ati_pcigart.c
…
drm_agpsupport.c
…
drm_atomic_helper.c
drm/fence: add in-fences support
2016-11-16 09:55:27 +01:00
drm_atomic.c
drm/fence: add out-fences support
2016-11-16 14:36:27 +01:00
drm_auth.c
…
drm_blend.c
drm: RIP mode_config->rotation_property
2016-10-22 10:42:11 +02:00
drm_bridge.c
…
drm_bufs.c
…
drm_cache.c
…
drm_color_mgmt.c
drm/color: document NULL values and default settings better
2016-11-15 22:39:48 +01:00
drm_connector.c
drm: Move tile group code into drm_connector.c
2016-11-15 15:30:38 +01:00
drm_context.c
…
drm_crtc_helper_internal.h
…
drm_crtc_helper.c
…
drm_crtc_internal.h
drm/fence: add fence timeline to drm_crtc
2016-11-16 10:42:48 +01:00
drm_crtc.c
drm/fence: add out-fences support
2016-11-16 14:36:27 +01:00
drm_debugfs_crc.c
drm: fix sparse warnings on undeclared symbols in crc debugfs
2016-10-19 14:10:29 +03:00
drm_debugfs.c
drm/atomic: add debugfs file to dump out atomic state
2016-11-08 16:38:03 -05:00
drm_dma.c
…
drm_dp_aux_dev.c
…
drm_dp_dual_mode_helper.c
drm: Print some debug/error info during DP dual mode detect
2016-10-26 15:57:11 -04:00
drm_dp_helper.c
…
drm_dp_mst_topology.c
drm/dp/mst: Check peer device type before attempting EDID read
2016-10-26 18:53:44 +02:00
drm_drv.c
drm: Extract drm_drv.h
2016-11-15 12:50:30 +01:00
drm_dumb_buffers.c
drm: Consolidate dumb buffer docs
2016-11-15 12:51:49 +01:00
drm_edid_load.c
…
drm_edid.c
Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next-queued
2016-11-17 14:32:57 +01:00
drm_encoder_slave.c
…
drm_encoder.c
…
drm_fb_cma_helper.c
drm/fb_cma_helper: Add drm_fb_cma_prepare_fb() helper
2016-11-14 12:43:58 +01:00
drm_fb_helper.c
drm/fb-helper: fix segfaults in drm_fb_helper_debug_*
2016-11-14 07:47:34 +01:00
drm_flip_work.c
…
drm_fops.c
drm: define drm_compat_ioctl NULL on CONFIG_COMPAT=n and reduce #ifdefs
2016-11-02 11:33:47 -04:00
drm_fourcc.c
drm: move allocation out of drm_get_format_name()
2016-11-12 14:19:38 +01:00
drm_framebuffer.c
drm: move allocation out of drm_get_format_name()
2016-11-12 14:19:38 +01:00
drm_gem_cma_helper.c
…
drm_gem.c
…
drm_global.c
…
drm_hashtab.c
…
drm_info.c
drm: Print device information again in debugfs
2016-10-17 16:20:53 +10:00
drm_internal.h
drm: drm_irq.h header cleanup
2016-11-15 23:33:48 +01:00
drm_ioc32.c
…
drm_ioctl.c
…
drm_irq.c
drm/irq: Unexport drm_vblank_on/off
2016-11-15 23:33:48 +01:00
drm_kms_helper_common.c
…
drm_legacy.h
…
drm_lock.c
…
drm_memory.c
…
drm_mipi_dsi.c
…
drm_mm.c
drm: Add stackdepot include for DRM_DEBUG_MM
2016-11-08 13:46:49 +01:00
drm_mode_config.c
drm/fence: add out-fences support
2016-11-16 14:36:27 +01:00
drm_mode_object.c
…
drm_modes.c
Revert "drm: Add aspect ratio parsing in DRM layer"
2016-11-15 15:01:42 +01:00
drm_modeset_helper.c
drm: move allocation out of drm_get_format_name()
2016-11-12 14:19:38 +01:00
drm_modeset_lock.c
drm: don't let crtc_ww_class leak out
2016-11-15 08:33:35 +01:00
drm_of.c
drm: convert DT component matching to component_match_add_release()
2016-10-25 11:52:38 -04:00
drm_panel.c
…
drm_pci.c
…
drm_plane_helper.c
drm: add helpers to go from plane state to drm_rect
2016-11-08 16:38:03 -05:00
drm_plane.c
drm/fence: add in-fences support
2016-11-16 09:55:27 +01:00
drm_platform.c
…
drm_prime.c
…
drm_print.c
drm/print: Move kerneldoc next to definition
2016-11-15 12:55:24 +01:00
drm_probe_helper.c
…
drm_property.c
…
drm_rect.c
drm: helper macros to print composite types
2016-11-08 16:38:03 -05:00
drm_scatter.c
…
drm_simple_kms_helper.c
…
drm_sysfs.c
…
drm_trace_points.c
…
drm_trace.h
…
drm_vm.c
…
drm_vma_manager.c
…
Kconfig
drm/fence: add in-fences support
2016-11-16 09:55:27 +01:00
Makefile
drm: Extract drm_mode_config.[hc]
2016-11-15 15:23:29 +01:00