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| author | Felix Kuehling <Felix.Kuehling@amd.com> | 2018-04-09 05:03:51 +0300 |
|---|---|---|
| committer | Oded Gabbay <oded.gabbay@gmail.com> | 2018-04-09 05:03:51 +0300 |
| commit | 9d7d024816686f922735f7adccd00e3fc44e2e03 (patch) | |
| tree | 82c5ba8454a607a27f5e027e400cfabb72cbb706 /drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c | |
| parent | bebfd2f4126a115420a2b04f44a05552c12e5b46 (diff) | |
| download | linux-9d7d024816686f922735f7adccd00e3fc44e2e03.tar.xz | |
drm/amdkfd: Add 64-bit doorbell and wptr support to kernel queue
v2: Removed redundant 0x before %p.
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
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) |