diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c b/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c index 36c9269ea7c0..c3744d89352c 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c @@ -214,6 +214,16 @@ void write_kernel_doorbell(void __iomem *db, u32 value) } } +void write_kernel_doorbell64(void __iomem *db, u64 value) +{ + if (db) { + WARN(((unsigned long)db & 7) != 0, + "Unaligned 64-bit doorbell"); + writeq(value, (u64 __iomem *)db); + pr_debug("writing %llu to doorbell address %p\n", value, db); + } +} + unsigned int kfd_doorbell_id_to_offset(struct kfd_dev *kfd, struct kfd_process *process, unsigned int doorbell_id) |