Hans de Goede e5ae504c86 drm/gma500: Fix BUG: sleeping function called from invalid context errors ... [ Upstream commit 63e37a79f7 ] gma_crtc_page_flip() was holding the event_lock spinlock while calling crtc_funcs->mode_set_base() which takes ww_mutex. The only reason to hold event_lock is to clear gma_crtc->page_flip_event on mode_set_base() errors. Instead unlock it after setting gma_crtc->page_flip_event and on errors re-take the lock and clear gma_crtc->page_flip_event it it is still set. This fixes the following WARN/stacktrace: [ 512.122953] BUG: sleeping function called from invalid context at kernel/locking/mutex.c:870 [ 512.123004] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 1253, name: gnome-shell [ 512.123031] preempt_count: 1, expected: 0 [ 512.123048] RCU nest depth: 0, expected: 0 [ 512.123066] INFO: lockdep is turned off. [ 512.123080] irq event stamp: 0 [ 512.123094] hardirqs last enabled at (0): [<0000000000000000>] 0x0 [ 512.123134] hardirqs last disabled at (0): [<ffffffff8d0ec28c>] copy_process+0x9fc/0x1de0 [ 512.123176] softirqs last enabled at (0): [<ffffffff8d0ec28c>] copy_process+0x9fc/0x1de0 [ 512.123207] softirqs last disabled at (0): [<0000000000000000>] 0x0 [ 512.123233] Preemption disabled at: [ 512.123241] [<0000000000000000>] 0x0 [ 512.123275] CPU: 3 PID: 1253 Comm: gnome-shell Tainted: G W 5.19.0+ #1 [ 512.123304] Hardware name: Packard Bell dot s/SJE01_CT, BIOS V1.10 07/23/2013 [ 512.123323] Call Trace: [ 512.123346] <TASK> [ 512.123370] dump_stack_lvl+0x5b/0x77 [ 512.123412] __might_resched.cold+0xff/0x13a [ 512.123458] ww_mutex_lock+0x1e/0xa0 [ 512.123495] psb_gem_pin+0x2c/0x150 [gma500_gfx] [ 512.123601] gma_pipe_set_base+0x76/0x240 [gma500_gfx] [ 512.123708] gma_crtc_page_flip+0x95/0x130 [gma500_gfx] [ 512.123808] drm_mode_page_flip_ioctl+0x57d/0x5d0 [ 512.123897] ? drm_mode_cursor2_ioctl+0x10/0x10 [ 512.123936] drm_ioctl_kernel+0xa1/0x150 [ 512.123984] drm_ioctl+0x21f/0x420 [ 512.124025] ? drm_mode_cursor2_ioctl+0x10/0x10 [ 512.124070] ? rcu_read_lock_bh_held+0xb/0x60 [ 512.124104] ? lock_release+0x1ef/0x2d0 [ 512.124161] __x64_sys_ioctl+0x8d/0xd0 [ 512.124203] do_syscall_64+0x58/0x80 [ 512.124239] ? do_syscall_64+0x67/0x80 [ 512.124267] ? trace_hardirqs_on_prepare+0x55/0xe0 [ 512.124300] ? do_syscall_64+0x67/0x80 [ 512.124340] ? rcu_read_lock_sched_held+0x10/0x80 [ 512.124377] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 512.124411] RIP: 0033:0x7fcc4a70740f [ 512.124442] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 18 48 8b 44 24 18 64 48 2b 04 25 28 00 00 [ 512.124470] RSP: 002b:00007ffda73f5390 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 512.124503] RAX: ffffffffffffffda RBX: 000055cc9e474500 RCX: 00007fcc4a70740f [ 512.124524] RDX: 00007ffda73f5420 RSI: 00000000c01864b0 RDI: 0000000000000009 [ 512.124544] RBP: 00007ffda73f5420 R08: 000055cc9c0b0cb0 R09: 0000000000000034 [ 512.124564] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000c01864b0 [ 512.124584] R13: 0000000000000009 R14: 000055cc9df484d0 R15: 000055cc9af5d0c0 [ 512.124647] </TASK> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220906203852.527663-2-hdegoede@redhat.com Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-09-28 11:11:55 +02:00
..
Kconfig	drm/gma500: Remove dependency on TTM	2021-02-09 17:14:12 +01:00
Makefile	drm/gma500: Drop DRM_GMA3600 config option	2021-02-09 17:14:11 +01:00
backlight.c	drm/gma500: remove trailing whitespaces	2021-04-22 01:11:39 +02:00
cdv_device.c	…
cdv_device.h	…
cdv_intel_crt.c	…
cdv_intel_display.c	…
cdv_intel_dp.c	drm/gma500: remove trailing whitespaces	2021-04-22 01:11:39 +02:00
cdv_intel_hdmi.c	drm/gma500: Remove Medfield support	2021-02-09 17:14:11 +01:00
cdv_intel_lvds.c	drm/gma500: correct kerneldoc	2021-04-22 01:11:39 +02:00
framebuffer.c	drm/gma500: Add the missed drm_gem_object_put() in psb_user_framebuffer_create()	2021-07-09 21:32:04 +02:00
framebuffer.h	…
gem.c	…
gem.h	…
gma_device.c	…
gma_device.h	…
gma_display.c	drm/gma500: Fix BUG: sleeping function called from invalid context errors	2022-09-28 11:11:55 +02:00
gma_display.h	…
gtt.c	drm/gma500: Never wait for blits	2021-02-09 13:07:44 +01:00
gtt.h	…
intel_bios.c	…
intel_bios.h	…
intel_gmbus.c	drm/gma500: correct kerneldoc	2021-04-22 01:11:39 +02:00
intel_i2c.c	…
mid_bios.c	…
mid_bios.h	…
mmu.c	drm/gma500: Remove CONFIG_X86 conditionals from source files	2021-02-09 17:14:11 +01:00
mmu.h	…
oaktrail.h	…
oaktrail_crtc.c	…
oaktrail_device.c	drm-misc-next for 5.13:	2021-03-16 17:08:46 +10:00
oaktrail_hdmi.c	…
oaktrail_hdmi_i2c.c	…
oaktrail_lvds.c	drm/gma500: Fix end of loop tests for list_for_each_entry	2021-07-09 10:06:11 +02:00
oaktrail_lvds_i2c.c	…
opregion.c	…
opregion.h	…
power.c	drm/gma500: Convert to Linux IRQ interfaces	2021-08-10 20:13:32 +02:00
power.h	…
psb_device.c	…
psb_device.h	…
psb_drv.c	drm/gma500: Convert to Linux IRQ interfaces	2021-08-10 20:13:32 +02:00
psb_drv.h	drm/gma500: Convert to Linux IRQ interfaces	2021-08-10 20:13:32 +02:00
psb_intel_display.c	gma500: fix an incorrect NULL check on list iterator	2022-06-09 10:23:29 +02:00
psb_intel_drv.h	…
psb_intel_lvds.c	…
psb_intel_modes.c	…
psb_intel_reg.h	drm/gma500: Remove Medfield support	2021-02-09 17:14:11 +01:00
psb_intel_sdvo.c	…
psb_intel_sdvo_regs.h	…
psb_irq.c	drm/gma500: Convert to Linux IRQ interfaces	2021-08-10 20:13:32 +02:00
psb_irq.h	drm/gma500: Convert to Linux IRQ interfaces	2021-08-10 20:13:32 +02:00
psb_lid.c	…
psb_reg.h	drm/gma500: Remove Medfield support	2021-02-09 17:14:11 +01:00