Architecture has no drm_cache.c support ------------[ cut here ]------------ WARNING: CPU: 1 PID: 7551 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: 7551 Comm: syz.2.1222 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 : ffff800021317840 x29: ffff800021317840 x28: dfff800000000000 x27: ffff0000e7fd9400 x26: 1fffe0001cffb284 x25: 1fffe0001cd48080 x24: 1fffe0001a4b0747 x23: dfff800000000000 x22: 000000000000c000 x21: ffff0000d2583a30 x20: ffff0000e6a40000 x19: ffff0000d2583a30 x18: 0000000000000001 x17: 0000000000000002 x16: ffff8000111a5644 x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000080000 x11: 000000000000e985 x10: ffff8000227fa000 x9 : 88a8453ba1d96200 x8 : 88a8453ba1d96200 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff800021317138 x4 : ffff80001422f280 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: 714 hardirqs last enabled at (713): [] __up_console_sem+0xb4/0x100 kernel/printk/printk.c:257 hardirqs last disabled at (714): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (524): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (522): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace 7e93028e31b542ec ]---