Commit 0648c4d0 authored by Hen Alon's avatar Hen Alon Committed by Oded Gabbay
Browse files

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



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

Signed-off-by: default avatarHen Alon <halon@habana.ai>
Reviewed-by: default avatarOded Gabbay <ogabbay@kernel.org>
Signed-off-by: default avatarOded Gabbay <ogabbay@kernel.org>
parent e0f45280

drivers/accel/habanalabs/common/habanalabs_ioctl.c

+3 −0
Original line number Diff line number Diff line
@@ -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;

include/uapi/drm/habanalabs_accel.h

+1 −0
Original line number Diff line number Diff line
@@ -991,6 +991,7 @@ struct hl_info_reset_count { 
struct hl_info_time_sync {

	__u64 device_time;

	__u64 host_time;

	__u64 tsc_time;

};



/**