Architecture has no drm_cache.c support ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4936 at drivers/gpu/drm/drm_cache.c:116 drm_clflush_pages+0x1c/0x2c drivers/gpu/drm/drm_cache.c:115 Modules linked in: CPU: 1 PID: 4936 Comm: syz.3.222 Not tainted 5.15.184-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : drm_clflush_pages+0x1c/0x2c drivers/gpu/drm/drm_cache.c:115 lr : drm_clflush_pages+0x1c/0x2c drivers/gpu/drm/drm_cache.c:115 sp : ffff80001f867840 x29: ffff80001f867840 x28: dfff800000000000 x27: ffff0000e9131000 x26: 1fffe0001d226204 x25: 1fffe0001964db80 x24: 1fffe0001af3a147 x23: dfff800000000000 x22: 0000000000081000 x21: ffff0000d79d0a30 x20: ffff0000de037000 x19: ffff0000d79d0a30 x18: 0000000000000002 x17: ffff800016cdf000 x16: ffff8000111a5644 x15: ffff8000167bf4c0 x14: ffff0000cd285bc0 x13: 1ffff0000282a06b x12: 0000000000080000 x11: 0000000000048212 x10: ffff800023d7a000 x9 : 02a86ca4374bf700 x8 : 02a86ca4374bf700 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff80000a732644 x2 : ffff0001a111cd10 x1 : 0000000100000000 x0 : 0000000000000027 Call trace: drm_clflush_pages+0x1c/0x2c drivers/gpu/drm/drm_cache.c:115 vgem_prime_pin+0xcc/0x178 drivers/gpu/drm/vgem/vgem_drv.c:312 drm_gem_pin+0x6c/0x8c drivers/gpu/drm/drm_gem.c:1142 drm_gem_map_attach+0x40/0x50 drivers/gpu/drm/drm_prime.c:583 dma_buf_dynamic_attach+0x1a8/0x734 drivers/dma-buf/dma-buf.c:764 dma_buf_attach+0x30/0x40 drivers/dma-buf/dma-buf.c:830 drm_gem_prime_import_dev+0xf4/0x338 drivers/gpu/drm/drm_prime.c:934 drm_gem_prime_import drivers/gpu/drm/drm_prime.c:983 [inline] drm_gem_prime_fd_to_handle+0x1a0/0x458 drivers/gpu/drm/drm_prime.c:321 drm_prime_fd_to_handle_ioctl+0x94/0xd0 drivers/gpu/drm/drm_prime.c:375 drm_ioctl_kernel+0x28c/0x3f8 drivers/gpu/drm/drm_ioctl.c:801 drm_ioctl+0x594/0x9f0 drivers/gpu/drm/drm_ioctl.c:904 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:860 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 2622 hardirqs last enabled at (2621): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1338 [inline] hardirqs last enabled at (2621): [] finish_lock_switch+0xb0/0x1c4 kernel/sched/core.c:4784 hardirqs last disabled at (2622): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (2616): [] softirq_handle_end kernel/softirq.c:401 [inline] softirqs last enabled at (2616): [] handle_softirqs+0xa4c/0xbf0 kernel/softirq.c:586 softirqs last disabled at (2541): [] __do_softirq kernel/softirq.c:592 [inline] softirqs last disabled at (2541): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (2541): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (2541): [] __irq_exit_rcu+0x240/0x440 kernel/softirq.c:641 ---[ end trace b98f85756e98c737 ]---