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accel/habanalabs: add tsc clock sampling to clock sync info

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Add tsc clock to clock sync info, to enable using this clock for
sampling and sync it with device time.

Signed-off-by: Hen Alon <halon@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
This commit is contained in:
Hen Alon 2023-08-09 17:29:41 +03:00 committed by Oded Gabbay
parent e0f452802b
commit 0648c4d080
2 changed files with 4 additions and 0 deletions
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3
drivers/accel/habanalabs/common/habanalabs_ioctl.c
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@ -17,6 +17,8 @@
#include <linux/uaccess.h>
#include <linux/vmalloc.h>
#include <asm/msr.h>
static u32 hl_debug_struct_size[HL_DEBUG_OP_TIMESTAMP + 1] = {
[HL_DEBUG_OP_ETR] = sizeof(struct hl_debug_params_etr),
[HL_DEBUG_OP_ETF] = sizeof(struct hl_debug_params_etf),
@ -320,6 +322,7 @@ static int time_sync_info(struct hl_device *hdev, struct hl_info_args *args)
time_sync.device_time = hdev->asic_funcs->get_device_time(hdev);
time_sync.host_time = ktime_get_raw_ns();
time_sync.tsc_time = rdtsc();
return copy_to_user(out, &time_sync,
min((size_t) max_size, sizeof(time_sync))) ? -EFAULT : 0;

1
include/uapi/drm/habanalabs_accel.h
View File

@ -991,6 +991,7 @@ struct hl_info_reset_count {
struct hl_info_time_sync {
__u64 device_time;
__u64 host_time;
__u64 tsc_time;
};
/**