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path: root/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_vi.c
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Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_vi.c')
-rw-r--r--drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_vi.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_vi.c b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_vi.c
index b81fda3754da..6469b3456f00 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_vi.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_vi.c
@@ -269,6 +269,28 @@ static bool is_occupied(struct mqd_manager *mm, void *mqd,
pipe_id, queue_id);
}
+static int get_wave_state(struct mqd_manager *mm, void *mqd,
+ void __user *ctl_stack,
+ u32 *ctl_stack_used_size,
+ u32 *save_area_used_size)
+{
+ struct vi_mqd *m;
+
+ m = get_mqd(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 -
+ m->cp_hqd_cntl_stack_size;
+
+ /* Control stack is not copied to user mode for GFXv8 because
+ * it's part of the context save area that is already
+ * accessible to user mode
+ */
+
+ return 0;
+}
+
static int init_mqd_hiq(struct mqd_manager *mm, void **mqd,
struct kfd_mem_obj **mqd_mem_obj, uint64_t *gart_addr,
struct queue_properties *q)
@@ -436,6 +458,7 @@ struct mqd_manager *mqd_manager_init_vi(enum KFD_MQD_TYPE type,
mqd->update_mqd = update_mqd;
mqd->destroy_mqd = destroy_mqd;
mqd->is_occupied = is_occupied;
+ mqd->get_wave_state = get_wave_state;
#if defined(CONFIG_DEBUG_FS)
mqd->debugfs_show_mqd = debugfs_show_mqd;
#endif
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