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linux/drivers/gpu/drm
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Chris Wilson d1dff15c80 drm/i915: Force VT'd workarounds when running as a guest OS 
commit 8195400f7e upstream.

If i915.ko is being used as a passthrough device, it does not know if
the host is using intel_iommu. Mixing the iommu and gfx causes a few
issues (such as scanout overfetch) which we need to workaround inside
the driver, so if we detect we are running under a hypervisor, also
assume the device access is being virtualised.

Reported-by: Stefan Fritsch <sf@sfritsch.de>
Suggested-by: Stefan Fritsch <sf@sfritsch.de>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Stefan Fritsch <sf@sfritsch.de>
Cc: stable@vger.kernel.org
Tested-by: Stefan Fritsch <sf@sfritsch.de>
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201019101523.4145-1-chris@chris-wilson.co.uk
(cherry picked from commit f566fdcd6c)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-05 11:08:49 +01:00
..
amd
drm/amd/display: HDMI remote sink need mode validation for Linux
2020-11-05 11:08:43 +01:00
arc
drm: drop _mode_ from drm_mode_connector_attach_encoder
2018-07-13 18:40:27 +02:00
arm
drm/arm: fix unintentional integer overflow on left shift
2020-08-19 08:14:54 +02:00
armada
drm/armada: remove obsolete fb unreferencing kfifo and workqueue
2018-07-30 11:53:06 +01:00
ast
drm/ast: Fixed reboot test may cause system hanged
2019-09-06 10:21:59 +02:00
atmel-hlcdc
drm: atmel-hlcdc: enable clock before configuring timing engine
2020-02-11 04:34:16 -08:00
bochs
drm/bochs: downgrade pci_request_region failure from error to warning
2020-04-13 10:44:59 +02:00
bridge
drm/bridge/synopsys: dsi: add support for non-continuous HS clock
2020-11-05 11:08:41 +01:00
cirrus
drm/cirrus: Use drm_framebuffer_put to avoid kernel oops in clean-up
2019-04-20 09:16:00 +02:00
etnaviv
drm/etnaviv: Fix error path on failure to enable bus clk
2020-08-19 08:14:54 +02:00
exynos
drm/exynos: fix ref count leak in mic_pre_enable
2020-07-22 09:32:01 +02:00
fsl-dcu
drm: drop _mode_ from drm_mode_connector_attach_encoder
2018-07-13 18:40:27 +02:00
gma500
drm/gma500: fix error check
2020-10-29 09:55:07 +01:00
hisilicon
drm/hisilicon: hibmc: Don't overwrite fb helper surface depth
2020-01-27 14:49:55 +01:00
i2c
Merge branch 'drm-tda9950-fixes' of git://git.armlinux.org.uk/~rmk/linux-arm into drm-fixes
2018-10-04 10:32:14 +10:00
i810
drm/i810: Prevent underflow in ioctl
2019-12-13 08:52:44 +01:00
i915
drm/i915: Force VT'd workarounds when running as a guest OS
2020-11-05 11:08:49 +01:00
imx
drm/imx: imx-ldb: Disable both channels for split mode in enc->disable()
2020-08-21 11:05:34 +02:00
lib
…
mediatek
drm/mediatek: Add missing put_device() call in mtk_hdmi_dt_parse_pdata()
2020-09-23 12:11:00 +02:00
meson
drm: meson: venc: cvbs: fix CVBS mode matching
2019-12-21 10:57:39 +01:00
mga
…
mgag200
drm: drop _mode_ from drm_mode_connector_attach_encoder
2018-07-13 18:40:27 +02:00
msm
drm/msm/a5xx: Always set an OPP supported hardware value
2020-10-01 13:14:38 +02:00
mxsfb
drm/mxsfb: Use simple_display_pipe prepare_fb helper
2018-04-24 13:58:43 +02:00
nouveau
drm/nouveau/mem: guard against NULL pointer access in mem_del
2020-10-14 10:31:21 +02:00
omapdrm
drm/omap: fix possible object reference leak
2020-10-01 13:14:33 +02:00
panel
drm: panel: simple: Fix bpc for LG LB070WV8 panel
2020-08-19 08:14:57 +02:00
pl111
drm/pl111: Initialize clock spinlock early
2019-06-15 11:54:00 +02:00
qxl
drm/qxl: Use correct notify port address when creating cursor ring
2020-06-25 15:33:06 +02:00
r128
r128: don't open-code memdup_user()
2017-12-27 19:00:09 -05:00
radeon
PCI: Use ioremap(), not phys_to_virt() for platform ROM
2020-10-01 13:14:40 +02:00
rcar-du
drm: rcar-du: Fix build error
2020-06-30 23:17:17 -04:00
rockchip
drm/rockchip: Suspend DP late
2019-08-29 08:28:40 +02:00
savage
drm/savage: off by one in savage_bci_cmdbuf()
2018-07-04 14:27:01 +02:00
scheduler
drm/scheduler: fix param documentation
2018-08-09 11:57:39 -05:00
selftests
Merge tag 'drm-misc-next-2018-06-21' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
2018-06-22 12:58:08 +10:00
shmobile
drm/shmob: Fix return value check in shmob_drm_probe
2020-01-27 14:50:12 +01:00
sis
…
sti
drm/sti: do not remove the drm_bridge that was never added
2020-01-27 14:49:53 +01:00
stm
drm/stm: attach gem fence to atomic state
2019-10-07 18:56:31 +02:00
sun4i
drm/sun4i: mixer: Extend regmap max_register
2020-10-07 08:00:06 +02:00
tdfx
…
tegra
drm/tegra: hub: Do not enable orphaned window group
2020-07-16 08:17:21 +02:00
tilcdc
drm/tilcdc: fix leak & null ref in panel_connector_get_modes
2020-08-19 08:14:50 +02:00
tinydrm
tinydrm/mipi-dbi: Use dma-safe buffers for all SPI transfers
2019-05-31 06:46:32 -07:00
ttm
drm/ttm/nouveau: don't call tt destroy callback on alloc failure.
2020-08-19 08:15:06 +02:00
tve200
drm/tve200: Stabilize enable/disable
2020-09-17 13:45:29 +02:00
udl
drm/udl: move to embedding drm device inside udl device.
2019-07-21 09:03:18 +02:00
v3d
drm/v3d: Handle errors from IRQ setup.
2019-05-31 06:46:34 -07:00
vc4
drm/vc4/vc4_hdmi: fill ASoC card owner
2020-10-01 13:14:52 +02:00
vgem
drm/vgem: Replace opencoded version of drm_gem_dumb_map_offset()
2020-08-26 10:30:58 +02:00
via
treewide: Use array_size() in vzalloc()
2018-06-12 16:19:22 -07:00
virtio
Fix use after free in get_capset_info callback.
2020-10-30 10:38:31 +01:00
vkms
drm/vkms: Hold gem object while still in-use
2020-06-22 09:05:08 +02:00
vmwgfx
drm/vmwgfx: Fix two list_for_each loop exit tests
2020-08-21 11:05:37 +02:00
xen
drm/xen-front: Fix mmap attributes for display buffers
2020-01-27 14:50:19 +01:00
zte
drm: drop _mode_ from drm_mode_connector_attach_encoder
2018-07-13 18:40:27 +02:00
ati_pcigart.c
…
drm_agpsupport.c
…
drm_atomic_helper.c
drm/atomic_helper: Allow DPMS On<->Off changes for unregistered connectors
2019-09-16 08:22:23 +02:00
drm_atomic.c
drm/atomic_helper: Allow DPMS On<->Off changes for unregistered connectors
2019-09-16 08:22:23 +02:00
drm_auth.c
drm: set is_master to 0 upon drm_new_set_master() failure
2018-12-08 12:59:07 +01:00
drm_blend.c
drm/blend: Add a generic alpha property
2018-04-16 21:17:29 +02:00
drm_bridge.c
…
drm_bufs.c
drm: return -EFAULT if copy_to_user() fails
2019-07-14 08:11:14 +02:00
drm_cache.c
…
drm_client.c
drm/cma-helper: Fix crash in fbdev error path
2018-10-02 13:03:34 +02:00
drm_color_mgmt.c
kernel.h: Retain constant expression output for max()/min()
2018-04-05 14:17:16 -07:00
drm_connector.c
drm/connector: Fix typo in drm_connector_list_iter_next()
2018-07-16 13:18:09 -04:00
drm_context.c
drm: Fix error handling in drm_legacy_addctx
2020-01-27 14:50:10 +01:00
drm_crtc_helper_internal.h
…
drm_crtc_helper.c
…
drm_crtc_internal.h
drm: drop _mode_ from remaining connector functions
2018-07-13 18:40:27 +02:00
drm_crtc.c
drm/lease: Make sure implicit planes are leased
2019-06-09 09:17:23 +02:00
drm_debugfs_crc.c
drm: remove the newline for CRC source name.
2020-02-24 08:34:45 +01:00
drm_debugfs.c
drm/debugfs: fix plain echo to connector "force" attribute
2020-08-19 08:14:52 +02:00
drm_dma.c
…
drm_dp_aux_dev.c
sched/wait, drivers/drm: Convert wait_on_atomic_t() usage to the new wait_var_event() API
2018-03-20 08:23:18 +01:00
drm_dp_cec.c
drm_dp_cec.c: fix formatting typo: %pdH -> %phD
2018-07-28 15:50:40 -03:00
drm_dp_dual_mode_helper.c
drm/i915: Fix LSPCON TMDS output buffer enabling from low-power state
2018-04-18 16:33:14 +03:00
drm_dp_helper.c
drm/dp_helper: Add DP aux channel tracing
2018-07-16 11:47:53 -04:00
drm_dp_mst_topology.c
drm/dp_mst: Increase ACT retry timeout to 3s
2020-06-25 15:33:07 +02:00
drm_drv.c
drm/drv: Hold ref on parent device during drm_device lifetime
2019-05-31 06:46:34 -07:00
drm_dumb_buffers.c
Merge tag 'drm-misc-next-2018-06-27' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
2018-06-28 13:29:07 +10:00
drm_edid_load.c
drm/edid: Fix a missing-check bug in drm_load_edid_firmware()
2019-07-31 07:26:58 +02:00
drm_edid.c
drm/edid: Add Oculus Rift S to non-desktop list
2020-06-07 13:17:56 +02:00
drm_encoder_slave.c
drm: encoder_slave: fix refcouting error for modules
2020-06-25 15:33:06 +02:00
drm_encoder.c
drm: Warn if plane/crtc/encoder/connector index exceeds our 32bit bitmasks
2018-01-29 18:46:53 +02:00
drm_fb_cma_helper.c
drm/cma-helper: Fix crash in fbdev error path
2018-10-02 13:03:34 +02:00
drm_fb_helper.c
drm/fb-helper: generic: Call drm_client_add() after setup is done
2020-01-27 14:50:36 +01:00
drm_file.c
drm: Wake up next in drm_read() chain if we are forced to putback the event
2019-05-31 06:46:34 -07:00
drm_flip_work.c
…
drm_fourcc.c
drm/fourcc: Add is_yuv field to drm_format_info to denote if the format is yuv
2018-07-18 16:56:45 +01:00
drm_framebuffer.c
drm: silence variable 'conn' set but not used
2019-08-16 10:12:46 +02:00
drm_gem_cma_helper.c
…
drm_gem_framebuffer_helper.c
drm/gem-fb-helper: Always do implicit sync
2018-06-20 14:43:13 +02:00
drm_gem.c
drm: hold gem reference until object is no longer accessed
2020-08-05 10:06:01 +02:00
drm_global.c
drm: add SPDX identifier and clarify license
2018-06-29 15:28:47 -05:00
drm_hashtab.c
treewide: Use array_size() in vzalloc()
2018-06-12 16:19:22 -07:00
drm_info.c
…
drm_internal.h
drm/lease: Send a distinct uevent
2018-12-13 09:16:21 +01:00
drm_ioc32.c
drm: add __user attribute to ptr_to_compat()
2019-09-16 08:22:08 +02:00
drm_ioctl.c
drm/atomic: Take the atomic toys away from X
2020-05-10 10:30:12 +02:00
drm_irq.c
…
drm_kms_helper_common.c
…
drm_lease.c
drm/lease: fix WARNING in idr_destroy
2020-03-25 08:06:12 +01:00
drm_legacy.h
…
drm_lock.c
…
drm_memory.c
treewide: Use array_size() in vmalloc()
2018-06-12 16:19:22 -07:00
drm_mipi_dsi.c
drm/mipi: use dcs write for mipi_dsi_dcs_set_tear_scanline
2020-08-19 08:14:55 +02:00
drm_mm.c
drm/mm: Add a search-by-address variant to only inspect a single hole
2018-05-24 15:04:30 +01:00
drm_mode_config.c
drm: writeback: Add client capability for exposing writeback connectors
2018-06-20 15:30:20 +01:00
drm_mode_object.c
drm: Reorder set_property_atomic to avoid returning with an active ww_ctx
2019-03-27 14:14:42 +09:00
drm_modes.c
drm/modes: Prevent division by zero htotal
2019-02-15 08:10:12 +01:00
drm_modeset_helper.c
…
drm_modeset_lock.c
drm: Change deadlock-avoidance algorithm for the modeset locks.
2018-07-03 09:46:05 +02:00
drm_of.c
drm/doc: Include drm_of.c helpers
2018-07-13 18:40:28 +02:00
drm_panel_orientation_quirks.c
drm: Added orientation quirk for ASUS tablet model T103HAF
2020-08-21 11:05:39 +02:00
drm_panel.c
Revert "drm/panel: Add device_link from panel device to DRM device"
2018-09-27 11:00:42 -04:00
drm_pci.c
drm: Remove PageReserved manipulation from drm_pci_alloc
2020-04-17 10:48:55 +02:00
drm_plane_helper.c
drm: add missing ctx argument to plane transitional helpers
2018-07-03 09:30:19 +02:00
drm_plane.c
drm/lease: Make sure implicit planes are leased
2019-06-09 09:17:23 +02:00
drm_prime.c
dma-buf: remove kmap_atomic interface
2018-06-20 15:59:34 +02:00
drm_print.c
drm: Add puts callback for the coredump printer
2018-07-30 08:49:41 -04:00
drm_probe_helper.c
drm: Flush output polling on shutdown
2019-10-01 08:26:11 +02:00
drm_property.c
drm: limit to INT_MAX in create_blob ioctl
2020-01-09 10:18:59 +01:00
drm_rect.c
drm/rect: Avoid division by zero
2020-02-11 04:34:07 -08:00
drm_scatter.c
…
drm_scdc_helper.c
drm/scdc-helper: Convert errors into debug messages
2018-03-26 21:37:24 +03:00
drm_simple_kms_helper.c
drm: drop _mode_ from drm_mode_connector_attach_encoder
2018-07-13 18:40:27 +02:00
drm_syncobj.c
drm/syncobj: Don't leak fences when WAIT_FOR_SUBMIT is set
2018-09-26 10:39:14 -04:00
drm_sysfs.c
drm/lease: Send a distinct uevent
2018-12-13 09:16:21 +01:00
drm_trace_points.c
…
drm_trace.h
…
drm_vblank.c
drm/drm_vblank: Change EINVAL by the correct errno
2019-12-31 16:35:01 +01:00
drm_vm.c
gpu: drm: drm_vm: Adding new typedef vm_fault_t
2018-05-29 08:58:46 +02:00
drm_vma_manager.c
drm: add SPDX idenitifier and clarify license
2018-06-29 15:28:47 -05:00
drm_writeback.c
drm: writeback: Fix doc that says connector should be disconnected
2018-07-16 16:35:27 +01:00
Kconfig
drm/fb_helper: Allow leaking fbdev smem_start
2019-01-16 22:04:35 +01:00
Makefile
drm: add support for DisplayPort CEC-Tunneling-over-AUX
2018-07-13 17:58:19 +03:00