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linux/drivers/accel/amdxdna
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Lizhi Hou 2f13baf62b accel/amdxdna: Fix deadlock between context destroy and job timeout 
[ Upstream commit ca25834123 ]

Hardware context destroy function holds dev_lock while waiting for all jobs
to complete. The timeout job also needs to acquire dev_lock, this leads to
a deadlock.

Fix the issue by temporarily releasing dev_lock before waiting for all
jobs to finish, and reacquiring it afterward.

Fixes: 4fd6ca90fc ("accel/amdxdna: Refactor hardware context destroy routine")
Reviewed-by: Maciej Falkowski <maciej.falkowski@linux.intel.com>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://patch.msgid.link/20251107181050.1293125-1-lizhi.hou@amd.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2025-12-18 14:02:59 +01:00
..
aie2_ctx.c accel/amdxdna: Fix deadlock between context destroy and job timeout 2025-12-18 14:02:59 +01:00
aie2_error.c accel/amdxdna: Remove casting mailbox payload pointer 2025-01-13 14:21:39 -06:00
aie2_message.c accel/amdxdna: Add a function to walk hardware contexts 2025-08-18 08:35:57 -07:00
aie2_msg_priv.h accel/amdxdna: Fix incorrect size of ERT_START_NPU commands 2025-04-10 10:45:39 -07:00
aie2_pci.c accel/amdxdna: Fix uninitialized return value 2025-12-18 14:02:36 +01:00
aie2_pci.h accel/amdxdna: Add a function to walk hardware contexts 2025-08-18 08:35:57 -07:00
aie2_pm.c accel/amdxdna: Enhance power management settings 2024-12-16 15:50:32 -06:00
aie2_psp.c accel/amdxdna: Fix incorrect PSP firmware size 2025-06-09 07:16:32 -07:00
aie2_smu.c accel/amdxdna: Return error when setting clock failed for npu1 2025-01-09 13:53:22 -06:00
aie2_solver.c accel/amdxdna: include linux/slab.h 2024-12-18 08:14:12 -06:00
aie2_solver.h accel/amdxdna: Enhance power management settings 2024-12-16 15:50:32 -06:00
amdxdna_ctx.c accel/amdxdna: Fix dma_fence leak when job is canceled 2025-12-18 14:02:52 +01:00
amdxdna_ctx.h accel/amdxdna: Fix incorrect command state for timed out job 2025-12-18 14:02:45 +01:00
amdxdna_gem.c accel/amdxdna: Call dma_buf_vmap_unlocked() for imported object 2025-12-18 14:02:25 +01:00
amdxdna_gem.h accel/amdxdna: Revise device bo creation and free 2025-06-16 22:29:09 -07:00
amdxdna_mailbox.c accel/amdxdna: Clear mailbox interrupt register during channel creation 2025-12-18 14:02:59 +01:00
amdxdna_mailbox.h accel/amdxdna: Remove casting mailbox payload pointer 2025-01-13 14:21:39 -06:00
amdxdna_mailbox_helper.c accel/amdxdna: Remove casting mailbox payload pointer 2025-01-13 14:21:39 -06:00
amdxdna_mailbox_helper.h accel/amdxdna: Remove casting mailbox payload pointer 2025-01-13 14:21:39 -06:00
amdxdna_pci_drv.c accel/amdxdna: Add ioctl DRM_IOCTL_AMDXDNA_GET_ARRAY 2025-09-04 08:26:43 -07:00
amdxdna_pci_drv.h accel/amdxdna: Add ioctl DRM_IOCTL_AMDXDNA_GET_ARRAY 2025-09-04 08:26:43 -07:00
amdxdna_sysfs.c accel/amdxdna: Add command execution 2024-11-22 11:43:27 -07:00
amdxdna_ubuf.c accel/amdxdna: Support user space allocated buffer 2025-07-22 08:34:29 -07:00
amdxdna_ubuf.h accel/amdxdna: Support user space allocated buffer 2025-07-22 08:34:29 -07:00
Kconfig accel/amdxdna: Add a new driver for AMD AI Engine 2024-11-22 11:41:26 -07:00
Makefile accel/amdxdna: Support user space allocated buffer 2025-07-22 08:34:29 -07:00
npu1_regs.c accel/amdxdna: Declare npu device profile as static variables 2025-01-03 23:37:52 -06:00
npu2_regs.c accel/amdxdna: Declare npu device profile as static variables 2025-01-03 23:37:52 -06:00
npu4_regs.c accel/amdxdna: Declare npu device profile as static variables 2025-01-03 23:37:52 -06:00
npu5_regs.c accel/amdxdna: Declare npu device profile as static variables 2025-01-03 23:37:52 -06:00
npu6_regs.c accel/amdxdna: Declare npu6_dev_priv as static 2025-01-03 23:38:22 -06:00
TODO accel/amdxdna: Add BO import and export 2025-03-28 11:14:06 -07:00