From bc05b0ec150983ba3b3c1a1c6b5eeb6c2918c94a Mon Sep 17 00:00:00 2001 From: Yong Zhao Date: Fri, 8 Nov 2019 23:03:29 -0500 Subject: [PATCH] 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: Yong Zhao Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v9.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v9.c b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v9.c index d3380c5bdbdea..be27ff01cdb8d 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v9.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v9.c @@ -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; -- 2.30.2