diff options
| author | Tomer Tayar <ttayar@habana.ai> | 2020-03-31 22:46:36 +0300 |
|---|---|---|
| committer | Oded Gabbay <oded.gabbay@gmail.com> | 2020-05-19 14:48:41 +0300 |
| commit | 25e7aeba601c1776cd21d610e3afc8768d0c7f2e (patch) | |
| tree | 1a6c207adeafa3eebcca5627f1ef58e9705bbd8c /drivers/misc/habanalabs/goya | |
| parent | ba7193c952f604a4e00a3f533d36733b47609e48 (diff) | |
| download | linux-25e7aeba601c1776cd21d610e3afc8768d0c7f2e.tar.xz | |
habanalabs: Add INFO IOCTL opcode for time sync information
Add a new opcode to the INFO IOCTL that retrieves the device time
alongside the host time, to allow a user application that want to measure
device time together with host time (such as a profiler) to synchronize
these times.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Diffstat (limited to 'drivers/misc/habanalabs/goya')
| -rw-r--r-- | drivers/misc/habanalabs/goya/goya.c | 10 | ||||
| -rw-r--r-- | drivers/misc/habanalabs/goya/goyaP.h | 1 |
2 files changed, 10 insertions, 1 deletions
diff --git a/drivers/misc/habanalabs/goya/goya.c b/drivers/misc/habanalabs/goya/goya.c index 19c3bdf4c358..ddc506d74988 100644 --- a/drivers/misc/habanalabs/goya/goya.c +++ b/drivers/misc/habanalabs/goya/goya.c @@ -5200,6 +5200,13 @@ static void goya_set_dma_mask_from_fw(struct hl_device *hdev) } } +u64 goya_get_device_time(struct hl_device *hdev) +{ + u64 device_time = ((u64) RREG32(mmPSOC_TIMESTAMP_CNTCVU)) << 32; + + return device_time | RREG32(mmPSOC_TIMESTAMP_CNTCVL); +} + static const struct hl_asic_funcs goya_funcs = { .early_init = goya_early_init, .early_fini = goya_early_fini, @@ -5263,7 +5270,8 @@ static const struct hl_asic_funcs goya_funcs = { .get_queue_id_for_cq = goya_get_queue_id_for_cq, .read_device_fw_version = goya_read_device_fw_version, .load_firmware_to_device = goya_load_firmware_to_device, - .set_dma_mask_from_fw = goya_set_dma_mask_from_fw + .set_dma_mask_from_fw = goya_set_dma_mask_from_fw, + .get_device_time = goya_get_device_time }; /* diff --git a/drivers/misc/habanalabs/goya/goyaP.h b/drivers/misc/habanalabs/goya/goyaP.h index 86857cdd36b1..d36f8d90c9c9 100644 --- a/drivers/misc/habanalabs/goya/goyaP.h +++ b/drivers/misc/habanalabs/goya/goyaP.h @@ -231,5 +231,6 @@ void goya_mmu_remove_device_cpu_mappings(struct hl_device *hdev); int goya_get_clk_rate(struct hl_device *hdev, u32 *cur_clk, u32 *max_clk); u32 goya_get_queue_id_for_cq(struct hl_device *hdev, u32 cq_idx); +u64 goya_get_device_time(struct hl_device *hdev); #endif /* GOYAP_H_ */ |