Huacai Chen afcdf51d97 drm/amd/display: Protect FPU in dml2_init()/dml21_init() ... Commit 7da55c27e7 ("drm/amd/display: Remove incorrect FP context start") removes the FP context protection of dml2_create(), and it said "All the DC_FP_START/END should be used before call anything from DML2". However, dml2_init()/dml21_init() are not protected from their callers, causing such errors: do_fpu invoked from kernel context![#1]: CPU: 0 UID: 0 PID: 239 Comm: kworker/0:5 Not tainted 6.14.0-rc6+ #2 Workqueue: events work_for_cpu_fn pc ffff80000319de80 ra ffff80000319de5c tp 900000010575c000 sp 900000010575f840 a0 0000000000000000 a1 900000012f210130 a2 900000012f000000 a3 ffff80000357e268 a4 ffff80000357e260 a5 900000012ea52cf0 a6 0000000400000004 a7 0000012c00001388 t0 00001900000015e0 t1 ffff80000379d000 t2 0000000010624dd3 t3 0000006400000014 t4 00000000000003e8 t5 0000005000000018 t6 0000000000000020 t7 0000000f00000064 t8 000000000000002f u0 5f5e9200f8901912 s9 900000012d380010 s0 900000012ea51fd8 s1 900000012f000000 s2 9000000109296000 s3 0000000000000001 s4 0000000000001fd8 s5 0000000000000001 s6 ffff800003415000 s7 900000012d390000 s8 ffff800003211f80 ra: ffff80000319de5c dml21_apply_soc_bb_overrides+0x3c/0x960 [amdgpu] ERA: ffff80000319de80 dml21_apply_soc_bb_overrides+0x60/0x960 [amdgpu] CRMD: 000000b0 (PLV0 -IE -DA +PG DACF=CC DACM=CC -WE) PRMD: 00000004 (PPLV0 +PIE -PWE) EUEN: 00000000 (-FPE -SXE -ASXE -BTE) ECFG: 00071c1d (LIE=0,2-4,10-12 VS=7) ESTAT: 000f0000 [FPD] (IS= ECode=15 EsubCode=0) PRID: 0014d010 (Loongson-64bit, Loongson-3C6000/S) Process kworker/0:5 (pid: 239, threadinfo=00000000927eadc6, task=000000008fd31682) Stack : 00040dc000003164 0000000000000001 900000012f210130 900000012eabeeb8 900000012f000000 ffff80000319fe48 900000012f210000 900000012f210130 900000012f000000 900000012eabeeb8 0000000000000001 ffff8000031a0064 900000010575f9f0 900000012f210130 900000012eac0000 900000012ea80000 900000012f000000 ffff8000031cefc4 900000010575f9f0 ffff8000035859c0 ffff800003414000 900000010575fa78 900000012f000000 ffff8000031b4c50 0000000000000000 9000000101c9d700 9000000109c40000 5f5e9200f8901912 900000012d3c4bd0 900000012d3c5000 ffff8000034aed18 900000012d380010 900000012d3c4bd0 ffff800003414000 900000012d380000 ffff800002ea49dc 0000000000000001 900000012d3c6000 00000000ffffe423 0000000000010000 ... Call Trace: [<ffff80000319de80>] dml21_apply_soc_bb_overrides+0x60/0x960 [amdgpu] [<ffff80000319fe44>] dml21_init+0xa4/0x280 [amdgpu] [<ffff8000031a0060>] dml21_create+0x40/0x80 [amdgpu] [<ffff8000031cefc0>] dc_state_create+0x100/0x160 [amdgpu] [<ffff8000031b4c4c>] dc_create+0x44c/0x640 [amdgpu] [<ffff800002ea49d8>] amdgpu_dm_init+0x3f8/0x2060 [amdgpu] [<ffff800002ea6658>] dm_hw_init+0x18/0x60 [amdgpu] [<ffff800002b16738>] amdgpu_device_init+0x1938/0x27e0 [amdgpu] [<ffff800002b18e80>] amdgpu_driver_load_kms+0x20/0xa0 [amdgpu] [<ffff800002b0c8f0>] amdgpu_pci_probe+0x1b0/0x580 [amdgpu] [<900000000448eae4>] local_pci_probe+0x44/0xc0 [<9000000003b02b18>] work_for_cpu_fn+0x18/0x40 [<9000000003b05da0>] process_one_work+0x160/0x300 [<9000000003b06718>] worker_thread+0x318/0x440 [<9000000003b11b8c>] kthread+0x12c/0x220 [<9000000003ac1484>] ret_from_kernel_thread+0x8/0xa4 Unfortunately, protecting dml2_init()/dml21_init() out of DML2 causes "sleeping function called from invalid context", so protect them with DC_FP_START() and DC_FP_END() inside. Fixes: 7da55c27e7 ("drm/amd/display: Remove incorrect FP context start") Cc: stable@vger.kernel.org Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>		2025-04-07 14:36:07 -04:00
..
adp	drm: adp: Remove unnecessary print function dev_err()	2025-03-05 08:39:12 -05:00
amd	drm/amd/display: Protect FPU in dml2_init()/dml21_init()	2025-04-07 14:36:07 -04:00
arm	Merge drm/drm-next into drm-misc-next	2025-02-18 07:43:43 +01:00
armada
aspeed	drm/aspeed: move to devm_platform_ioremap_resource() usage	2025-02-26 15:27:06 +01:00
ast	drm/ast: cursor: Move implementation to separate source file	2025-02-20 08:38:34 +01:00
atmel-hlcdc
bridge	drm/bridge: Fix spelling mistake "gettin" -> "getting"	2025-03-03 10:41:29 +01:00
ci	drm/ci: update expectation files	2025-02-05 10:10:51 -03:00
clients
display	drm-misc-next for v6.15:	2025-02-28 12:36:01 +10:00
etnaviv	drm/sched: Use struct for drm_sched_init() params	2025-02-12 11:59:52 +01:00
exynos	drm/connector: make mode_valid take a const struct drm_display_mode	2025-01-07 12:45:19 +02:00
fsl-dcu	drm/connector: make mode_valid take a const struct drm_display_mode	2025-01-07 12:45:19 +02:00
gma500	drm/gma500: fix inconsistent indenting warning	2025-03-06 10:29:31 +01:00
gud
hisilicon	drm/hisilicon/hibmc: select CONFIG_DRM_DISPLAY_DP_HELPER	2025-02-09 03:56:34 +02:00
hyperv
i915	Merge tag 'drm-intel-gt-next-2025-03-12' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-next	2025-03-25 08:21:07 +10:00
imagination	Linux 6.14-rc6	2025-03-12 09:43:12 +10:00
imx	drm/connector: make mode_valid take a const struct drm_display_mode	2025-01-07 12:45:19 +02:00
ingenic	drm/bridge: Pass full state to atomic_disable	2025-02-19 16:59:12 +01:00
kmb
lib
lima	drm/sched: Use struct for drm_sched_init() params	2025-02-12 11:59:52 +01:00
logicvc
loongson	drm/atomic: Let drivers decide which planes to async flip	2025-02-14 00:54:29 +02:00
mcde
mediatek	Mediatek DRM Next for Linux 6.15	2025-03-14 14:28:56 +10:00
meson	drm/bridge: Pass full state to atomic_disable	2025-02-19 16:59:12 +01:00
mgag200	drm/mgag200: Added support for the new device G200eH5	2025-02-11 10:53:53 +01:00
msm	drm/msm/dpu: drop wb2_formats_rgb	2025-03-08 02:16:49 +02:00
mxsfb
nouveau	Linux 6.14-rc6	2025-03-12 09:43:12 +10:00
omapdrm	drm/bridge: Pass full state to atomic_disable	2025-02-19 16:59:12 +01:00
panel	drm/panel: fix Visionox RM692E5 dependencies	2025-03-05 19:52:02 +01:00
panfrost	drm/sched: Use struct for drm_sched_init() params	2025-02-12 11:59:52 +01:00
panthor	drm/panthor: Clean up FW version information display	2025-03-05 14:15:04 +00:00
pl111
qxl	drm/connector: make mode_valid take a const struct drm_display_mode	2025-01-07 12:45:19 +02:00
radeon	drm/radeon/uvd: Replace nested max() with single max3()	2025-03-19 15:51:40 -04:00
renesas	drm/bridge: Pass full state to atomic_disable	2025-02-19 16:59:12 +01:00
rockchip	drm/rockchip: lvds: lower log severity for missing pinctrl settings	2025-03-04 16:59:58 +01:00
scheduler	Linux 6.14-rc6	2025-03-12 09:43:12 +10:00
solomon	drm/ssd130x: ensure ssd132x pitch is correct	2025-01-16 10:48:47 +01:00
sprd
sti	drm/connector: make mode_valid take a const struct drm_display_mode	2025-01-07 12:45:19 +02:00
stm	drm/stm: move to devm_platform_ioremap_resource() usage	2025-02-26 15:27:07 +01:00
sun4i
tegra	drm/atomic: Let drivers decide which planes to async flip	2025-02-14 00:54:29 +02:00
tests	drm/format-helper: Add conversion from XRGB8888 to BGR888	2025-03-03 16:13:33 +01:00
tidss	drm/tidss: Fix typos	2025-01-24 09:41:01 +02:00
tilcdc
tiny	Short summary of fixes pull:	2025-03-24 17:52:28 +10:00
ttm	drm/ttm: Add helpers for shrinking	2025-03-05 17:08:59 +01:00
tve200
udl
v3d	drm/v3d: Add clock handling	2025-02-12 09:55:50 -03:00
vboxvideo	drm/vboxvideo: Remove unused hgsmi_cursor_position	2025-02-28 09:05:10 +01:00
vc4	drm/vc4: hdmi: Fix some NULL vs IS_ERR() bugs	2025-03-03 14:25:14 +01:00
vgem
virtio	drm/virtio: Add drm_panic support	2025-02-09 20:36:51 +03:00
vkms	Linux 6.14-rc6	2025-03-12 09:43:12 +10:00
vmwgfx	Merge drm/drm-next into drm-misc-next	2025-02-06 13:47:32 +01:00
xe	drm/xe: Use correct type width for alignment in fb pinning code	2025-03-12 20:56:58 -07:00
xen
xlnx	drm/bridge: Pass full state to atomic_disable	2025-02-19 16:59:12 +01:00
drm_atomic_helper.c	drm/atomic-helper: Add a note in drm_atomic_helper_reset_crtc() kernel-doc	2025-02-21 10:57:21 +01:00
drm_atomic_state_helper.c
drm_atomic_uapi.c	drm/atomic: Let drivers decide which planes to async flip	2025-02-14 00:54:29 +02:00
drm_atomic.c
drm_auth.c
drm_blend.c
drm_bridge.c	drm/bridge: Change parameter name of drm_atomic_bridge_chain_enable()	2025-02-19 16:59:20 +01:00
drm_buddy.c	drm/buddy: Add a testcase to verify the multiroot fini	2025-01-14 20:43:19 +05:30
drm_cache.c
drm_client_event.c	drm/client: Send pending hotplug events after resume	2025-03-05 21:48:49 +01:00
drm_client_modeset.c	drm/client: Handle tiled displays better	2025-01-21 11:41:05 +01:00
drm_client.c
drm_color_mgmt.c
drm_connector.c	Linux 6.13	2025-01-23 14:42:21 +01:00
drm_crtc_helper_internal.h	drm/connector: make mode_valid take a const struct drm_display_mode	2025-01-07 12:45:19 +02:00
drm_crtc_helper.c
drm_crtc_internal.h
drm_crtc.c	drm: add clone mode check for CRTC	2025-01-08 01:39:58 +02:00
drm_damage_helper.c	drm/damage-helper: add const qualifier in drm_atomic_helper_damage_merged()	2025-03-03 14:45:40 +02:00
drm_debugfs_crc.c
drm_debugfs.c	drm/debugfs: fix printk format for bridge index	2025-02-17 14:17:53 +01:00
drm_displayid_internal.h
drm_displayid.c
drm_draw_internal.h
drm_draw.c
drm_drv.c	drm: Introduce device wedged event	2025-02-13 12:15:43 -05:00
drm_dumb_buffers.c
drm_edid_load.c
drm_edid.c
drm_eld.c
drm_encoder.c
drm_exec.c
drm_fb_dma_helper.c	drm/fb-dma-helper: Test for imported buffers with drm_gem_is_imported()	2025-03-06 08:59:17 +01:00
drm_fb_helper.c	drm/fb-helper: Remove struct drm_fb_helper.fb_probe	2025-03-05 21:48:50 +01:00
drm_fbdev_dma.c	drm/fbdev-dma: Add shadow buffering for deferred I/O	2025-02-27 09:37:55 +01:00
drm_fbdev_shmem.c
drm_fbdev_ttm.c
drm_file.c	drm/file: Add fdinfo helper for printing regions with prefix	2025-02-07 15:23:36 +01:00
drm_flip_work.c
drm_format_helper.c	drm/format-helper: Add conversion from XRGB8888 to BGR888	2025-03-03 16:13:33 +01:00
drm_fourcc.c
drm_framebuffer.c
drm_gem_atomic_helper.c
drm_gem_dma_helper.c	drm/gem-dma: Use dma_buf from GEM object instance	2025-03-06 08:59:01 +01:00
drm_gem_framebuffer_helper.c	drm/gem-framebuffer: Use dma_buf from GEM object instance	2025-03-06 08:59:14 +01:00
drm_gem_shmem_helper.c	drm/gem-shmem: Use dma_buf from GEM object instance	2025-03-06 08:59:07 +01:00
drm_gem_ttm_helper.c
drm_gem_vram_helper.c
drm_gem.c	drm/gem: Test for imported GEM buffers with helper	2025-03-06 08:58:27 +01:00
drm_gpusvm.c	drm/gpusvm: Fix kernel-doc	2025-03-12 20:53:47 -07:00
drm_gpuvm.c
drm_internal.h
drm_ioc32.c
drm_ioctl.c
drm_kms_helper_common.c
drm_lease.c
drm_managed.c	drm/managed: Add DRM-managed alloc_ordered_workqueue	2025-01-21 10:32:31 +01:00
drm_mipi_dbi.c	drm/mipi-dbi: Test for imported buffers with drm_gem_is_imported()	2025-03-06 08:59:20 +01:00
drm_mipi_dsi.c	drm/mipi-dsi: stop passing non struct drm_device to drm_err() and friends	2025-03-04 17:00:24 +02:00
drm_mm.c
drm_mode_config.c
drm_mode_object.c
drm_modes.c	Linux 6.13-rc6	2025-01-10 14:24:17 +10:00
drm_modeset_helper.c
drm_modeset_lock.c
drm_of.c	drm: of: drm_of_find_panel_or_bridge: move misplaced comment	2025-02-17 14:17:55 +01:00
drm_panel_backlight_quirks.c
drm_panel_orientation_quirks.c	drm: panel-orientation-quirks: Add quirk for OneXPlayer Mini (Intel)	2025-02-17 09:19:07 +01:00
drm_panel.c	drm/bridge: panel: forbid initializing a panel with unknown connector type	2025-02-17 14:17:59 +01:00
drm_panic_qr.rs	drm/panic: Better binary encoding in QR code	2025-02-07 17:52:09 +01:00
drm_panic.c	drm/panic: Better binary encoding in QR code	2025-02-07 17:52:09 +01:00
drm_pci.c
drm_plane_helper.c
drm_plane.c
drm_prime.c	drm/prime: Use dma_buf from GEM object instance	2025-03-06 08:59:36 +01:00
drm_print.c
drm_privacy_screen_x86.c
drm_privacy_screen.c
drm_probe_helper.c	drm/probe-helper: Call connector detect functions in single helper	2025-01-14 11:20:49 +01:00
drm_property.c
drm_rect.c
drm_self_refresh_helper.c
drm_simple_kms_helper.c
drm_suballoc.c
drm_syncobj.c
drm_sysfs.c
drm_trace_points.c
drm_trace.h
drm_vblank_work.c	treewide: Introduce kthread_run_worker[_on_cpu]()	2025-01-08 18:15:03 +01:00
drm_vblank.c
drm_vma_manager.c
drm_writeback.c	drm: writeback: Fix kernel doc name	2025-02-20 15:02:09 +01:00
Kconfig	UAPI Changes:	2025-03-11 10:26:17 +10:00
Makefile	UAPI Changes:	2025-03-11 10:26:17 +10:00