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linux/drivers/gpu/drm
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Matthew Auld f5d28856b8 drm/ttm: stop calling tt_swapin in vm_access 
In commit:

commit 09ac4fcb3f
Author: Felix Kuehling <Felix.Kuehling@amd.com>
Date:   Thu Jul 13 17:01:16 2017 -0400

    drm/ttm: Implement vm_operations_struct.access v2

we added the vm_access hook, where we also directly call tt_swapin for
some reason. If something is swapped-out then the ttm_tt must also be
unpopulated, and since access_kmap should also call tt_populate, if
needed, then swapping-in will already be handled there.

If anything, calling tt_swapin directly here would likely always fail
since the tt->pages won't yet be populated, or worse since the tt->pages
array is never actually cleared in unpopulate this might lead to a nasty
uaf.

Fixes: 09ac4fcb3f ("drm/ttm: Implement vm_operations_struct.access v2")
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Christian König <christian.koenig@amd.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210927114114.152310-1-matthew.auld@intel.com
Signed-off-by: Christian König <christian.koenig@amd.com>
2021-09-29 13:54:06 +02:00
..
amd
Merge drm/drm-next into drm-misc-next
2021-09-14 09:25:30 +02:00
arm
drm/arm: malidp: Use fourcc_mod_is_vendor() helper
2021-08-16 12:18:46 +02:00
armada
…
aspeed
…
ast
drm/ast: Use managed interfaces for framebuffer write combining
2021-09-23 09:26:09 +02:00
atmel-hlcdc
drm/atmel-hlcdc: Convert to Linux IRQ interfaces
2021-08-10 20:00:58 +02:00
bridge
drm/bridge: parade-ps8640: Add support for AUX channel
2021-09-23 13:53:40 -07:00
etnaviv
Merge drm/drm-next into drm-misc-next
2021-09-14 09:25:30 +02:00
exynos
drm/exynos: Always initialize mapping in exynos_drm_register_dma()
2021-08-22 01:56:39 +09:00
fsl-dcu
drm/fsl-dcu: Convert to Linux IRQ interfaces
2021-08-10 20:13:25 +02:00
gma500
drm/gma500: Fix wrong pointer passed to PTR_ERR()
2021-09-24 20:11:40 +02:00
gud
drm/shmem-helper: Switch to vmf_insert_pfn
2021-08-12 21:41:10 +02:00
hisilicon
Merge tag 'drm-misc-next-2021-07-29' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
2021-07-30 14:52:00 +10:00
hyperv
drm/hyperv: Use offset-adjusted shadow-plane mappings
2021-08-08 20:27:27 +02:00
i2c
…
i810
drm: IRQ midlayer is now legacy
2021-08-10 20:14:01 +02:00
i915
Merge drm/drm-next into drm-misc-next
2021-09-14 09:25:30 +02:00
imx
Merge tag 'drm-next-2021-08-31-1' of git://anongit.freedesktop.org/drm/drm
2021-09-01 11:26:46 -07:00
ingenic
drm/ingenic: Use standard drm_atomic_helper_commit_tail
2021-08-11 15:49:15 +02:00
kmb
Merge tag 'drm-next-2021-08-31-1' of git://anongit.freedesktop.org/drm/drm
2021-09-01 11:26:46 -07:00
lib
…
lima
drm/lima: use scheduler dependency tracking
2021-08-30 10:58:20 +02:00
mcde
drm/mcde: Make use of the helper function devm_platform_ioremap_resource()
2021-09-07 22:50:17 +02:00
mediatek
Merge tag 'drm-next-2021-08-31-1' of git://anongit.freedesktop.org/drm/drm
2021-09-01 11:26:46 -07:00
meson
Merge drm/drm-next into drm-misc-next
2021-09-14 09:25:30 +02:00
mga
drm: IRQ midlayer is now legacy
2021-08-10 20:14:01 +02:00
mgag200
drm/mgag200: Use managed interfaces for framebuffer write combining
2021-09-23 09:26:09 +02:00
msm
drm/msm: allow compile_test on !ARM
2021-09-28 08:42:00 +02:00
mxsfb
drm/mxsfb: Convert to Linux IRQ interfaces
2021-08-10 20:13:45 +02:00
nouveau
Merge drm/drm-next into drm-misc-next
2021-09-14 09:25:30 +02:00
omapdrm
drm: omap: remove obsolete selection of OMAP2_DSS in config DRM_OMAP
2021-08-26 11:19:08 +02:00
panel
drm/panel: support for BOE and INX video mode panel
2021-09-28 09:31:33 -07:00
panfrost
drm/panfrost: simplify getting .driver_data
2021-09-20 14:34:37 +01:00
pl111
drm/pl111: Remove unused including <linux/version.h>
2021-07-31 20:52:01 +02:00
qxl
drm/qxl: User page size macro for qxl release bo
2021-09-15 08:21:32 +02:00
r128
drm/r128: switch from 'pci_' to 'dma_' API
2021-08-23 14:29:02 -04:00
radeon
Merge drm/drm-next into drm-misc-next
2021-09-14 09:25:30 +02:00
rcar-du
drm: rcar-du: lvds: Use dev_err_probe()
2021-07-28 16:33:32 +03:00
rockchip
drm/rockchip: remove of_match_ptr() from analogix dp driver
2021-09-21 11:53:42 +02:00
savage
…
scheduler
drm/sched: fix the bug of time out calculation(v4)
2021-09-15 10:21:30 -04:00
selftests
drm: Fix oops in damage self-tests by mocking damage property
2021-08-02 11:15:11 +02:00
shmobile
drm/shmobile: Convert to Linux IRQ interfaces
2021-07-25 11:01:12 +02:00
sis
…
sti
drm/bridge: Centralize error message when bridge attach fails
2021-07-28 16:33:12 +03:00
stm
drm/stm: ltdc: add layer alpha support
2021-09-09 14:58:27 +02:00
sun4i
drm/sun4i: dw-hdmi: Make use of the helper function dev_err_probe()
2021-09-16 15:47:20 +02:00
tdfx
…
tegra
Merge drm/drm-next into drm-misc-next
2021-09-14 09:25:30 +02:00
tidss
drm/tidss: Convert to Linux IRQ interfaces
2021-08-10 20:13:49 +02:00
tilcdc
drm/tilcdc: Convert to Linux IRQ interfaces
2021-08-10 20:13:53 +02:00
tiny
drm/bochs: add Bochs PCI ID for Simics model
2021-09-15 08:21:32 +02:00
ttm
drm/ttm: stop calling tt_swapin in vm_access
2021-09-29 13:54:06 +02:00
tve200
…
udl
drm/shmem-helper: Switch to vmf_insert_pfn
2021-08-12 21:41:10 +02:00
v3d
drm/v3d: Make use of the helper function devm_platform_ioremap_resource_byname()
2021-09-20 13:37:34 +01:00
vboxvideo
drm/vboxvideo: Use managed interfaces for framebuffer write combining
2021-09-23 09:26:09 +02:00
vc4
drm/vc4: hdmi: Actually check for the connector status in hotplug
2021-09-28 12:29:13 +02:00
vgem
drm/vgem: use shmem helpers
2021-08-12 21:41:10 +02:00
via
drm: IRQ midlayer is now legacy
2021-08-10 20:14:01 +02:00
virtio
drm/virtio: implement context init: advertise feature to userspace
2021-09-29 09:22:31 +02:00
vkms
drm/vkms: Use offset-adjusted shadow-plane mappings and output
2021-08-08 20:27:52 +02:00
vmwgfx
Merge drm/drm-next into drm-misc-next
2021-09-14 09:25:30 +02:00
xen
…
xlnx
drm/xlnx/zynqmp_disp: Fix incorrectly named enum 'zynqmp_disp_layer_id'
2021-08-09 02:28:05 +03:00
drm_agpsupport.c
…
drm_aperture.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_atomic_helper.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_atomic_state_helper.c
…
drm_atomic_uapi.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_atomic.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_auth.c
drm: add lockdep assert to drm_is_current_master_locked
2021-08-05 12:08:15 +02:00
drm_blend.c
…
drm_bridge_connector.c
…
drm_bridge.c
drm/bridge: Document the probe issue with MIPI-DSI bridges
2021-09-24 19:25:23 +02:00
drm_bufs.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_cache.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_client_modeset.c
…
drm_client.c
…
drm_color_mgmt.c
…
drm_connector.c
drm: Fix scaling_mode docs
2021-09-22 22:11:53 +03:00
drm_context.c
…
drm_crtc_helper_internal.h
…
drm_crtc_helper.c
…
drm_crtc_internal.h
drm/connector: Add drm_connector_find_by_fwnode() function (v3)
2021-08-20 12:35:59 +02:00
drm_crtc.c
…
drm_damage_helper.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_debugfs_crc.c
…
drm_debugfs.c
drm: avoid blocking in drm_clients_info's rcu section
2021-07-20 20:14:42 +02:00
drm_displayid.c
…
drm_dma.c
…
drm_dp_aux_bus.c
Merge tag 'bus_remove_return_void-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core into drm-next
2021-08-11 08:47:08 +10:00
drm_dp_aux_dev.c
…
drm_dp_cec.c
…
drm_dp_dual_mode_helper.c
…
drm_dp_helper.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_dp_mst_topology_internal.h
…
drm_dp_mst_topology.c
drm/dp_mst: Fix return code on sideband message failure
2021-07-27 18:58:28 -04:00
drm_drv.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_dsc.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_dumb_buffers.c
…
drm_edid_load.c
…
drm_edid.c
drm/edid: Fix EDID quirk compile error on older compilers
2021-09-24 14:56:36 -07:00
drm_encoder_slave.c
…
drm_encoder.c
…
drm_fb_cma_helper.c
…
drm_fb_helper.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_file.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_flip_work.c
…
drm_format_helper.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_fourcc.c
…
drm_framebuffer.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_gem_atomic_helper.c
drm/gem: Provide offset-adjusted framebuffer BO mappings
2021-08-08 20:26:16 +02:00
drm_gem_cma_helper.c
…
drm_gem_framebuffer_helper.c
drm/gem: Provide offset-adjusted framebuffer BO mappings
2021-08-08 20:26:16 +02:00
drm_gem_shmem_helper.c
drm/shmem-helpers: Allocate wc pages on x86
2021-08-12 21:41:10 +02:00
drm_gem_ttm_helper.c
…
drm_gem_vram_helper.c
drm/ttm: remove ttm_tt_destroy_common v2
2021-08-23 13:54:55 +02:00
drm_gem.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_hashtab.c
…
drm_hdcp.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_internal.h
…
drm_ioc32.c
drm: Copy drm_wait_vblank to user before returning
2021-08-17 13:56:03 -04:00
drm_ioctl.c
GPU: drm: fix style errors
2021-08-28 19:00:20 +02:00
drm_irq.c
drm: IRQ midlayer is now legacy
2021-08-10 20:14:01 +02:00
drm_kms_helper_common.c
drm: Remove unused code to load the non-existing fbcon.ko
2021-08-18 14:33:47 +02:00
drm_lease.c
drm: clean up unused kerneldoc in drm_lease.c
2021-07-30 11:55:41 +02:00
drm_legacy_misc.c
drm: IRQ midlayer is now legacy
2021-08-10 20:14:01 +02:00
drm_legacy.h
…
drm_lock.c
…
drm_managed.c
…
drm_memory.c
…
drm_mipi_dbi.c
drm/mipi-dbi: Use framebuffer dma-buf helpers
2021-07-23 20:17:59 +02:00
drm_mipi_dsi.c
drm/mipi-dsi: Create devm device attachment
2021-09-24 19:25:33 +02:00
drm_mm.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_mode_config.c
…
drm_mode_object.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_modes.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_modeset_helper.c
…
drm_modeset_lock.c
…
drm_of.c
drm/bridge: Add a function to abstract away panels
2021-09-14 10:39:01 +02:00
drm_panel_orientation_quirks.c
drm/panel-orientation-quirks: add Valve Steam Deck
2021-09-12 15:10:12 +02:00
drm_panel.c
…
drm_pci.c
…
drm_plane_helper.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_plane.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_prime.c
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
2021-09-02 14:47:21 -07:00
drm_print.c
isystem: ship and use stdarg.h
2021-08-19 09:02:55 +09:00
drm_probe_helper.c
drm/probe-helper: Create a HPD IRQ event helper for a single connector
2021-09-28 12:29:13 +02:00
drm_property.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_rect.c
…
drm_scatter.c
…
drm_scdc_helper.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_self_refresh_helper.c
…
drm_simple_kms_helper.c
drm/simple-kms: Support custom CRTC state
2021-08-08 20:14:08 +02:00
drm_syncobj.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_sysfs.c
drm/connector: Add a fwnode pointer to drm_connector and register with ACPI (v2)
2021-08-20 12:35:59 +02:00
drm_trace_points.c
…
drm_trace.h
…
drm_vblank_work.c
…
drm_vblank.c
drm: IRQ midlayer is now legacy
2021-08-10 20:14:01 +02:00
drm_vm.c
…
drm_vma_manager.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_writeback.c
…
Kconfig
Merge drm/drm-next into drm-misc-next
2021-09-14 09:25:30 +02:00
Makefile
drm: zte: remove obsolete DRM Support for ZTE SoCs
2021-08-26 11:19:08 +02:00