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kernel_arpi/drivers/gpu/drm
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Marek Szyprowski 957e6f437d drm/exynos: Fix cleanup of IOMMU related objects 
[ Upstream commit 07dc3678ba ]

Store the IOMMU mapping created by the device core of each Exynos DRM
sub-device and restore it when the Exynos DRM driver is unbound. This
fixes IOMMU initialization failure for the second time when a deferred
probe is triggered from the bind() callback of master's compound DRM
driver. This also fixes the following issue found using kmemleak
detector:

unreferenced object 0xc2137640 (size 64):
  comm "swapper/0", pid 1, jiffies 4294937900 (age 3127.400s)
  hex dump (first 32 bytes):
    50 a3 14 c2 80 a2 14 c2 01 00 00 00 20 00 00 00  P........... ...
    00 10 00 00 00 80 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<3acd268d>] arch_setup_dma_ops+0x4c/0x104
    [<9f7d2cce>] of_dma_configure+0x19c/0x3a4
    [<ba07704b>] really_probe+0xb0/0x47c
    [<4f510e4f>] driver_probe_device+0x78/0x1c4
    [<7481a0cf>] device_driver_attach+0x58/0x60
    [<0ff8f5c1>] __driver_attach+0xb8/0x158
    [<86006144>] bus_for_each_dev+0x74/0xb4
    [<10159dca>] bus_add_driver+0x1c0/0x200
    [<8a265265>] driver_register+0x74/0x108
    [<e0f3451a>] exynos_drm_init+0xb0/0x134
    [<db3fc7ba>] do_one_initcall+0x90/0x458
    [<6da35917>] kernel_init_freeable+0x188/0x200
    [<db3f74d4>] kernel_init+0x8/0x110
    [<1f3cddf9>] ret_from_fork+0x14/0x20
    [<8cd12507>] 0x0
unreferenced object 0xc214a280 (size 128):
  comm "swapper/0", pid 1, jiffies 4294937900 (age 3127.400s)
  hex dump (first 32 bytes):
    00 a0 ec ed 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<3acd268d>] arch_setup_dma_ops+0x4c/0x104
    [<9f7d2cce>] of_dma_configure+0x19c/0x3a4
    [<ba07704b>] really_probe+0xb0/0x47c
    [<4f510e4f>] driver_probe_device+0x78/0x1c4
    [<7481a0cf>] device_driver_attach+0x58/0x60
    [<0ff8f5c1>] __driver_attach+0xb8/0x158
    [<86006144>] bus_for_each_dev+0x74/0xb4
    [<10159dca>] bus_add_driver+0x1c0/0x200
    [<8a265265>] driver_register+0x74/0x108
    [<e0f3451a>] exynos_drm_init+0xb0/0x134
    [<db3fc7ba>] do_one_initcall+0x90/0x458
    [<6da35917>] kernel_init_freeable+0x188/0x200
    [<db3f74d4>] kernel_init+0x8/0x110
    [<1f3cddf9>] ret_from_fork+0x14/0x20
    [<8cd12507>] 0x0
unreferenced object 0xedeca000 (size 4096):
  comm "swapper/0", pid 1, jiffies 4294937900 (age 3127.400s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<3acd268d>] arch_setup_dma_ops+0x4c/0x104
    [<9f7d2cce>] of_dma_configure+0x19c/0x3a4
    [<ba07704b>] really_probe+0xb0/0x47c
    [<4f510e4f>] driver_probe_device+0x78/0x1c4
    [<7481a0cf>] device_driver_attach+0x58/0x60
    [<0ff8f5c1>] __driver_attach+0xb8/0x158
    [<86006144>] bus_for_each_dev+0x74/0xb4
    [<10159dca>] bus_add_driver+0x1c0/0x200
    [<8a265265>] driver_register+0x74/0x108
    [<e0f3451a>] exynos_drm_init+0xb0/0x134
    [<db3fc7ba>] do_one_initcall+0x90/0x458
    [<6da35917>] kernel_init_freeable+0x188/0x200
    [<db3f74d4>] kernel_init+0x8/0x110
    [<1f3cddf9>] ret_from_fork+0x14/0x20
    [<8cd12507>] 0x0
unreferenced object 0xc214a300 (size 128):
  comm "swapper/0", pid 1, jiffies 4294937900 (age 3127.400s)
  hex dump (first 32 bytes):
    00 a3 14 c2 00 a3 14 c2 00 40 18 c2 00 80 18 c2  .........@......
    02 00 02 00 ad 4e ad de ff ff ff ff ff ff ff ff  .....N..........
  backtrace:
    [<08cbd8bc>] iommu_domain_alloc+0x24/0x50
    [<b835abee>] arm_iommu_create_mapping+0xe4/0x134
    [<3acd268d>] arch_setup_dma_ops+0x4c/0x104
    [<9f7d2cce>] of_dma_configure+0x19c/0x3a4
    [<ba07704b>] really_probe+0xb0/0x47c
    [<4f510e4f>] driver_probe_device+0x78/0x1c4
    [<7481a0cf>] device_driver_attach+0x58/0x60
    [<0ff8f5c1>] __driver_attach+0xb8/0x158
    [<86006144>] bus_for_each_dev+0x74/0xb4
    [<10159dca>] bus_add_driver+0x1c0/0x200
    [<8a265265>] driver_register+0x74/0x108
    [<e0f3451a>] exynos_drm_init+0xb0/0x134
    [<db3fc7ba>] do_one_initcall+0x90/0x458
    [<6da35917>] kernel_init_freeable+0x188/0x200
    [<db3f74d4>] kernel_init+0x8/0x110
    [<1f3cddf9>] ret_from_fork+0x14/0x20

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-04-01 11:01:53 +02:00
..
amd
drm/amdgpu: correct ROM_INDEX/DATA offset for VEGA20
2020-04-01 11:01:53 +02:00
arc
…
arm
drm/arm/mali: make malidp_mw_connector_helper_funcs static
2020-01-17 19:49:05 +01:00
armada
drm/armada: drop use of drmP.h
2019-08-14 18:31:10 +02:00
aspeed
drm/aspeed: gfc_crtc: Make structure aspeed_gfx_funcs constant
2019-08-14 19:27:26 +02:00
ast
Merge tag 'drm-next-2019-09-18' of git://anongit.freedesktop.org/drm/drm
2019-09-19 16:24:24 -07:00
atmel-hlcdc
drm: atmel-hlcdc: prefer a lower pixel-clock than requested
2020-02-11 04:35:36 -08:00
bochs
drm/bochs: Use dev_get_drvdata
2019-08-06 09:20:58 +02:00
bridge
drm/bridge: dw-hdmi: fix AVI frame colorimetry
2020-03-25 08:25:59 +01:00
cirrus
…
etnaviv
drm/etnaviv: fix dumping of iommuv2
2019-10-29 18:12:24 +01:00
exynos
drm/exynos: Fix cleanup of IOMMU related objects
2020-04-01 11:01:53 +02:00
fsl-dcu
drm/fsl-dcu: fix opencoded use of drm_panel_*
2019-08-10 15:41:48 +02:00
gma500
drm/gma500: Fixup fbdev stolen size usage evaluation
2020-02-24 08:36:22 +01:00
hisilicon
drm: kirin: Revert "Fix for hikey620 display offset problem"
2020-03-12 13:00:26 +01:00
i2c
drm/i2c/tda998x: drop use of drmP.h
2019-08-14 18:30:52 +02:00
i810
drm/i810: Prevent underflow in ioctl
2019-12-13 08:42:56 +01:00
i915
drm/i915/gvt: Fix unnecessary schedule timer when no vGPU exits
2020-03-18 07:17:56 +01:00
imx
Merge tag 'imx-drm-next-2019-08-23' of git://git.pengutronix.de/pza/linux into drm-next
2019-08-27 16:52:12 +10:00
ingenic
gpu/drm: ingenic: Avoid null pointer deference in plane atomic update
2020-02-24 08:36:36 +01:00
lib
…
lima
Merge tag 'drm-next-2019-09-18' of git://anongit.freedesktop.org/drm/drm
2019-09-19 16:24:24 -07:00
mcde
drm/mcde: dsi: Fix invalid pointer dereference if panel cannot be found
2020-01-09 10:19:41 +01:00
mediatek
drm/mediatek: Find the cursor plane instead of hard coding it
2020-03-25 08:25:42 +01:00
meson
drm/meson: vclk: use the correct G12A frac max value
2019-12-31 16:43:09 +01:00
mga
…
mgag200
drm/mgag200: Flag all G200 SE A machines as broken wrt <startadd>
2019-12-21 11:04:54 +01:00
msm
drm/msm/dsi/pll: call vco set rate explicitly
2020-03-12 13:00:12 +01:00
mxsfb
dma-buf: rename reservation_object to dma_resv
2019-08-13 09:09:30 +02:00
nouveau
drm/nouveau/kms/gv100-: Re-set LUT after clearing for modesets
2020-02-28 17:22:21 +01:00
omapdrm
Merge drm/drm-fixes into drm-misc-fixes
2019-10-03 09:59:29 +02:00
panel
drm/panel: simple: Add Logic PD Type 28 display support
2020-02-24 08:36:33 +01:00
panfrost
drm/panfrost: Don't try to map on error faults
2020-03-12 13:00:26 +01:00
pl111
drm/pl111: Support grayscale
2019-08-09 09:15:05 +02:00
qxl
drm/qxl: Complete exception handling in qxl_device_init()
2020-02-24 08:36:22 +01:00
r128
drm/r128: drop use of drmP.h
2019-07-17 12:52:55 +02:00
radeon
drm/radeon: Inline drm_get_pci_dev
2020-03-05 16:43:43 +01:00
rcar-du
drm: rcar_lvds: Fix color mismatches on R-Car H2 ES2.0 and later
2020-01-26 10:01:04 +01:00
rockchip
drm/rockchip: Round up _before_ giving to the clock framework
2020-01-26 10:01:04 +01:00
savage
…
scheduler
drm: Don't free jobs in wait_event_interruptible()
2019-12-31 16:44:20 +01:00
selftests
drm/modes: Make sure to parse valid rotation value from cmdline
2020-03-12 13:00:11 +01:00
shmobile
drm/shmobile: drop use of drmP.h
2019-07-15 18:11:31 +02:00
sis
…
sti
drm/sti: fix opencoded use of drm_panel_*
2019-08-07 13:54:17 +02:00
stm
drm/stm: attach gem fence to atomic state
2019-07-25 12:00:09 +02:00
sun4i
drm/sun4i: de2/de3: Remove unsupported VI layer formats
2020-03-12 13:00:27 +01:00
tdfx
drm/tdfx: drop use of drmP.h
2019-07-17 12:52:55 +02:00
tegra
drm/tegra: Fix ordering of cleanup code
2020-01-17 19:48:23 +01:00
tilcdc
drm/tilcdc: include linux/pinctrl/consumer.h again
2019-09-30 19:24:47 +03:00
tiny
drm/tiny: Kconfig: Remove always-y THERMAL dep. from TINYDRM_REPAPER
2019-10-10 15:15:51 +02:00
ttm
drm/ttm: return -EBUSY on pipelining with no_gpu_wait (v2)
2019-12-31 16:43:00 +01:00
tve200
drm/tve200: drop use of drmP.h
2019-07-15 18:11:30 +02:00
udl
drm/udl: drop use of drmP.h
2019-07-17 12:52:55 +02:00
v3d
drm/v3d: Fix memory leak in v3d_submit_cl_ioctl
2019-10-23 20:57:05 +02:00
vboxvideo
drm/vboxvideo: Make structure vbox_fb_helper_funcs constant
2019-08-18 12:52:52 +02:00
vc4
drm/vc4/vc4_hdmi: fill in connector info
2019-12-31 16:42:12 +01:00
vgem
drm/vgem: Close use-after-free race in vgem_gem_create
2020-02-19 19:53:04 +01:00
via
drivers/gpu/drm/via: convert put_page() to put_user_page*()
2019-09-24 15:54:08 -07:00
virtio
drm/virtio: module_param_named() requires linux/moduleparam.h
2020-03-12 13:00:32 +01:00
vkms
drm/vkms: drop use of drmP.h
2019-07-15 18:11:30 +02:00
vmwgfx
drm/vmwgfx: prevent memory leak in vmw_cmdbuf_res_add
2020-02-24 08:36:49 +01:00
xen
Merge tag 'for-linus-5.4-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
2019-10-12 14:11:21 -07:00
zte
Merge v5.3-rc1 into drm-misc-next
2019-07-22 21:24:10 +02:00
ati_pcigart.c
drm/ati_pcigart: drop dependency on drm_os_linux.h
2019-07-19 23:24:16 +02:00
drm_agpsupport.c
gpu/drm: fix a few kernel-doc "/**" mark warnings
2019-07-16 11:25:02 +02:00
drm_atomic_helper.c
drm/atomic: fix self-refresh helpers crtc state dereference
2019-11-06 13:00:21 -05:00
drm_atomic_state_helper.c
drm/atomic: Rename crtc_state->pageflip_flags to async_flip
2019-09-18 18:43:36 +02:00
drm_atomic_uapi.c
drm/atomic: Reject FLIP_ASYNC unconditionally
2019-09-18 18:42:57 +02:00
drm_atomic.c
drm: Free the writeback_job when it with an empty fb
2019-09-23 15:31:53 +08:00
drm_auth.c
…
drm_blend.c
…
drm_bridge.c
…
drm_bufs.c
Merge tag 'drm-next-2019-07-16' of git://anongit.freedesktop.org/drm/drm
2019-07-15 19:04:27 -07:00
drm_cache.c
…
drm_client_modeset.c
Revert "drm/fbdev: Fallback to non tiled mode if all tiles not present"
2020-03-25 08:25:50 +01:00
drm_client.c
drm/fb-helper: Map DRM client buffer only when required
2019-08-01 15:01:29 +02:00
drm_color_mgmt.c
…
drm_connector.c
drm: Fix kerneldoc warns in connector-related docs
2019-08-12 10:16:39 -04:00
drm_context.c
…
drm_crtc_helper_internal.h
…
drm_crtc_helper.c
drm: Remove bridge support from legacy helpers
2019-08-16 15:50:27 +03:00
drm_crtc_internal.h
…
drm_crtc.c
…
drm_damage_helper.c
drm: damage_helper: Fix race checking plane->state->fb
2019-12-13 08:42:55 +01:00
drm_debugfs_crc.c
drm: remove the newline for CRC source name.
2020-02-24 08:36:44 +01:00
drm_debugfs.c
…
drm_dma.c
gpu/drm: fix a few kernel-doc "/**" mark warnings
2019-07-16 11:25:02 +02:00
drm_dp_aux_dev.c
drm/dp_mst: Enable registration of AUX devices for MST ports
2019-07-25 16:39:35 -04:00
drm_dp_cec.c
…
drm_dp_dual_mode_helper.c
…
drm_dp_helper.c
drm: Make the bw/link rate calculations more forgiving
2019-07-17 12:45:30 -04:00
drm_dp_mst_topology.c
drm/dp_mst: Remove VCPI while disabling topology mgr
2020-02-11 04:35:53 -08:00
drm_drv.c
drm/kms: Duct-tape for mode object lifetime checks
2019-09-18 11:27:18 +02:00
drm_dsc.c
…
drm_dumb_buffers.c
Revert "drm/gem: Rename drm_gem_dumb_map_offset() to drm_gem_map_offset()"
2019-08-07 11:56:48 -04:00
drm_edid_load.c
…
drm_edid.c
drm: Use EOPNOTSUPP, not ENOTSUPP
2019-12-31 16:42:34 +01:00
drm_encoder_slave.c
…
drm_encoder.c
…
drm_fb_cma_helper.c
…
drm_fb_helper.c
drm/fb-helper: Round up bits_per_pixel if possible
2020-01-14 20:08:25 +01:00
drm_file.c
…
drm_flip_work.c
…
drm_format_helper.c
…
drm_fourcc.c
…
drm_framebuffer.c
drm: silence variable 'conn' set but not used
2019-07-22 16:04:53 -04:00
drm_gem_cma_helper.c
…
drm_gem_framebuffer_helper.c
dma-buf: rename reservation_object to dma_resv
2019-08-13 09:09:30 +02:00
drm_gem_shmem_helper.c
drm/shmem: Use mutex_trylock in drm_gem_shmem_purge
2019-08-28 10:02:39 -05:00
drm_gem_vram_helper.c
drm/ttm: use gem vma_node
2019-08-06 08:21:54 +02:00
drm_gem.c
dma-buf: rename reservation_object to dma_resv
2019-08-13 09:09:30 +02:00
drm_hashtab.c
…
drm_hdcp.c
drm/hdcp: reference for srm file format
2019-08-06 13:18:42 +05:30
drm_internal.h
…
drm_ioc32.c
Merge v5.3-rc1 into drm-misc-next
2019-07-22 21:24:10 +02:00
drm_ioctl.c
drm/atomic: Take the atomic toys away from X
2019-09-18 18:42:21 +02:00
drm_irq.c
…
drm_kms_helper_common.c
drm: fix module name in edid_firmware log message
2019-08-22 10:41:06 +03:00
drm_lease.c
drm/lease: fix WARNING in idr_destroy
2020-03-25 08:25:56 +01:00
drm_legacy_misc.c
gpu/drm: fix a few kernel-doc "/**" mark warnings
2019-07-16 11:25:02 +02:00
drm_legacy.h
…
drm_lock.c
gpu/drm: fix a few kernel-doc "/**" mark warnings
2019-07-16 11:25:02 +02:00
drm_memory.c
gpu/drm: fix a few kernel-doc "/**" mark warnings
2019-07-16 11:25:02 +02:00
drm_mipi_dbi.c
drm/mipi_dbi: Fix off-by-one bugs in mipi_dbi_blank()
2020-02-24 08:36:25 +01:00
drm_mipi_dsi.c
drivers: Introduce device lookup variants by of_node
2019-07-30 13:07:41 +02:00
drm_mm.c
…
drm_mode_config.c
…
drm_mode_object.c
drm/kms: Duct-tape for mode object lifetime checks
2019-09-18 11:27:18 +02:00
drm_modes.c
drm/modes: Make sure to parse valid rotation value from cmdline
2020-03-12 13:00:11 +01:00
drm_modeset_helper.c
…
drm_modeset_lock.c
Merge tag 'docs/v5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
2019-07-16 12:21:41 -07:00
drm_of.c
…
drm_panel_orientation_quirks.c
…
drm_panel.c
drm/panel: drop return code from drm_panel_detach()
2019-08-10 15:41:48 +02:00
drm_pci.c
…
drm_plane_helper.c
…
drm_plane.c
…
drm_prime.c
drm/prime: Ditch gem_prime_res_obj hook
2019-07-31 10:19:23 +02:00
drm_print.c
…
drm_probe_helper.c
…
drm_property.c
drm: limit to INT_MAX in create_blob ioctl
2020-01-04 19:18:43 +01:00
drm_rect.c
drm/rect: Avoid division by zero
2020-02-11 04:35:36 -08:00
drm_scatter.c
gpu/drm: fix a few kernel-doc "/**" mark warnings
2019-07-16 11:25:02 +02:00
drm_scdc_helper.c
…
drm_self_refresh_helper.c
drm/atomic: fix self-refresh helpers crtc state dereference
2019-11-06 13:00:21 -05:00
drm_simple_kms_helper.c
…
drm_syncobj.c
drm/syncobj: Add better overview documentation for syncobj (v2)
2019-08-12 16:58:52 +02:00
drm_sysfs.c
drm: uevent for connector status change
2019-08-06 13:16:54 +05:30
drm_trace_points.c
…
drm_trace.h
…
drm_vblank.c
drm/drm_vblank: Change EINVAL by the correct errno
2019-12-31 16:43:50 +01:00
drm_vm.c
gpu/drm: fix a few kernel-doc "/**" mark warnings
2019-07-16 11:25:02 +02:00
drm_vma_manager.c
…
drm_vram_helper_common.c
…
drm_vram_mm_helper.c
…
drm_writeback.c
drm: Clear the fence pointer when writeback job signaled
2019-09-23 15:32:53 +08:00
Kconfig
Merge tag 'drm-misc-next-2019-08-08' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
2019-08-09 16:04:31 +10:00
Makefile
drm/amd: remove meaningless descending into amd/amdkfd/
2019-08-27 10:09:12 -05:00