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path: root/drivers/gpu/drm/amd/amdkfd/kfd_events.h
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Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_events.h')
-rw-r--r--drivers/gpu/drm/amd/amdkfd/kfd_events.h18
1 files changed, 9 insertions, 9 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_events.h b/drivers/gpu/drm/amd/amdkfd/kfd_events.h
index 28f6838b1f4c..abca5bfebbff 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_events.h
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_events.h
@@ -27,12 +27,17 @@
#include <linux/hashtable.h>
#include <linux/types.h>
#include <linux/list.h>
+#include <linux/wait.h>
#include "kfd_priv.h"
#include <uapi/linux/kfd_ioctl.h>
-#define KFD_EVENT_ID_NONSIGNAL_MASK 0x80000000U
-#define KFD_FIRST_NONSIGNAL_EVENT_ID KFD_EVENT_ID_NONSIGNAL_MASK
-#define KFD_LAST_NONSIGNAL_EVENT_ID UINT_MAX
+/*
+ * IDR supports non-negative integer IDs. Small IDs are used for
+ * signal events to match their signal slot. Use the upper half of the
+ * ID space for non-signal events.
+ */
+#define KFD_FIRST_NONSIGNAL_EVENT_ID ((INT_MAX >> 1) + 1)
+#define KFD_LAST_NONSIGNAL_EVENT_ID INT_MAX
/*
* Written into kfd_signal_slot_t to indicate that the event is not signaled.
@@ -46,9 +51,6 @@ struct kfd_event_waiter;
struct signal_page;
struct kfd_event {
- /* All events in process, rooted at kfd_process.events. */
- struct hlist_node events;
-
u32 event_id;
bool signaled;
@@ -56,11 +58,9 @@ struct kfd_event {
int type;
- struct list_head waiters; /* List of kfd_event_waiter by waiters. */
+ wait_queue_head_t wq; /* List of event waiters. */
/* Only for signal events. */
- struct signal_page *signal_page;
- unsigned int signal_slot_index;
uint64_t __user *user_signal_address;
/* type specific data */