Commit bc05b0ec authored by Yong Zhao's avatar Yong Zhao Committed by Alex Deucher
Browse files

drm/amdkfd: Fix a bug when calculating save_area_used_size 



workgroup context data writes from m->cp_hqd_cntl_stack_size, so we
should deduct it when calculating the used size.

Signed-off-by: default avatarYong Zhao <Yong.Zhao@amd.com>
Reviewed-by: default avatarFelix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 681a9167

drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v9.c

+2 −1
Original line number Diff line number Diff line
@@ -302,7 +302,8 @@ static int get_wave_state(struct mqd_manager *mm, void *mqd, 


	*ctl_stack_used_size = m->cp_hqd_cntl_stack_size -

		m->cp_hqd_cntl_stack_offset;

	*save_area_used_size = m->cp_hqd_wg_state_offset;

	*save_area_used_size = m->cp_hqd_wg_state_offset -

		m->cp_hqd_cntl_stack_size;



	if (copy_to_user(ctl_stack, mqd_ctl_stack, m->cp_hqd_cntl_stack_size))

		return -EFAULT;