+ Laurent
________________________________
From: Zhao, Yong <yong.z...@amd.com>
Sent: Monday, November 11, 2019 6:25 PM
To: amd-gfx@lists.freedesktop.org <amd-gfx@lists.freedesktop.org>; Cornwall,
Jay <jay.cornw...@amd.com>
Cc: Zhao, Yong <yong.z...@amd.com>
Subject: [PATCH 3/3] 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.
Change-Id: I5252e25662c3b8221f451c39115bf084d1911eae
Signed-off-by: Yong Zhao <yong.z...@amd.com>
---
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 d3380c5bdbde..3a2ee1f01aae 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;
--
2.17.1
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