syzbot

Architecture has no drm_cache.c support
------------[ cut here ]------------
WARNING: CPU: 0 PID: 3959 at drivers/gpu/drm/drm_cache.c:116 drm_clflush_pages+0x1c/0x2c drivers/gpu/drm/drm_cache.c:115
Modules linked in:
CPU: 0 PID: 3959 Comm: syz-executor253 Not tainted 5.15.152-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
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 : ffff80001c9177f0
x29: ffff80001c9177f0 x28: 1fffe0001ae7e404 x27: ffff0000d73f2000
x26: dfff800000000000 x25: 1fffe000192ca647 x24: dfff800000000000
x23: 0000000000001000 x22: ffff0000c9653230 x21: ffff0000d8238900
x20: ffff0000c9653000 x19: ffff0000c9653230 x18: 0000000000000001
x17: 0000000000000000 x16: ffff80001197c3d4 x15: 00000000ffffffff
x14: ffff0000c8218000 x13: 0000000000000001 x12: 0000000000000001
x11: 0000000000000000 x10: 0000000000000000 x9 : e9c171d2b97d3c00
x8 : e9c171d2b97d3c00 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80001c916f58 x4 : ffff8000149ef7a0 x3 : ffff80000a9623a0
x2 : ffff0001b47f3d10 x1 : 0000000100000000 x0 : 0000000000000027
Call trace:
 drm_clflush_pages+0x1c/0x2c drivers/gpu/drm/drm_cache.c:115
 vgem_prime_pin+0xd4/0x184 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+0x1b8/0x748 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+0x1ac/0x464 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+0x2cc/0x458 drivers/gpu/drm/drm_ioctl.c:801
 drm_ioctl+0x5d0/0xa64 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+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
irq event stamp: 13656
hardirqs last  enabled at (13655): [<ffff80000832ac10>] __up_console_sem+0xb4/0x100 kernel/printk/printk.c:257
hardirqs last disabled at (13656): [<ffff800011977a60>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396
softirqs last  enabled at (13128): [<ffff800008021c64>] softirq_handle_end kernel/softirq.c:401 [inline]
softirqs last  enabled at (13128): [<ffff800008021c64>] __do_softirq+0xb5c/0xdb0 kernel/softirq.c:587
softirqs last disabled at (13119): [<ffff8000081b6568>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (13119): [<ffff8000081b6568>] invoke_softirq kernel/softirq.c:439 [inline]
softirqs last disabled at (13119): [<ffff8000081b6568>] __irq_exit_rcu+0x264/0x4d4 kernel/softirq.c:637
---[ end trace 6dfdbe6c181d0756 ]---