Architecture has no drm_cache.c support
------------[ cut here ]------------
WARNING: CPU: 1 PID: 4824 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: 4824 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
pstate: 62400005 (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 : ffff80001fbf7840
x29: ffff80001fbf7840 x28: dfff800000000000 x27: ffff0000c965d400
x26: 1fffe000192cba84 x25: 1fffe00019a627e0 x24: 1fffe0001abfaa47
x23: dfff800000000000 x22: 000000000000c000 x21: ffff0000d5fd5230
x20: ffff0000c8eb1200 x19: ffff0000d5fd5230 x18: 0000000000000001
x17: 0000000000000000 x16: ffff80001125a830 x15: 00000000ffffffff
x14: 0000000000000001 x13: 1fffe000341f5ed7 x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000000000000000 x9 : 218e6220ded39a00
x8 : 218e6220ded39a00 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80001fbf7158 x4 : ffff80001437f3e0 x3 : ffff80000a75e82c
x2 : ffff0001a0fa3d50 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:1150
 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+0xf4/0x328 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+0x1a0/0x448 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+0x2a4/0x410 drivers/gpu/drm/drm_ioctl.c:801
 drm_ioctl+0x5bc/0xa24 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+0x98/0x2b0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1d0 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: 556
hardirqs last  enabled at (555): [<ffff8000082fb428>] __up_console_sem+0xb4/0xfc kernel/printk/printk.c:257
hardirqs last disabled at (556): [<ffff8000112561f8>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396
softirqs last  enabled at (374): [<ffff800008031f94>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31
softirqs last disabled at (372): [<ffff800008031f60>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18
---[ end trace 70d5676457a17736 ]---