habanalabs: add wait-for-multi-CS uAPI

[sfrench/cifs-2.6.git] / include / uapi / misc / habanalabs.h

diff --git a/include/uapi/misc/habanalabs.h b/include/uapi/misc/habanalabs.h
index 18765eb75b65902f65af375ec65c3df27c0414c3..49c737c4a2f647eb0f4630f108a292a13d41f785 100644 (file)
--- a/include/uapi/misc/habanalabs.h
+++ b/include/uapi/misc/habanalabs.h
@@ -735,11 +735,18 @@ union hl_cs_args {
 
 #define HL_WAIT_CS_FLAGS_INTERRUPT     0x2
 #define HL_WAIT_CS_FLAGS_INTERRUPT_MASK 0xFFF00000
+#define HL_WAIT_CS_FLAGS_MULTI_CS      0x4
+
+#define HL_WAIT_MULTI_CS_LIST_MAX_LEN  32
 
 struct hl_wait_cs_in {
        union {
                struct {
-                       /* Command submission sequence number */
+                       /*
+                        * In case of wait_cs holds the CS sequence number.
+                        * In case of wait for multi CS hold a user pointer to
+                        * an array of CS sequence numbers
+                        */
                        __u64 seq;
                        /* Absolute timeout to wait for command submission
                         * in microseconds
@@ -767,12 +774,17 @@ struct hl_wait_cs_in {
 
        /* Context ID - Currently not in use */
        __u32 ctx_id;
+
        /* HL_WAIT_CS_FLAGS_*
         * If HL_WAIT_CS_FLAGS_INTERRUPT is set, this field should include
         * interrupt id according to HL_WAIT_CS_FLAGS_INTERRUPT_MASK, in order
         * not to specify an interrupt id ,set mask to all 1s.
         */
        __u32 flags;
+
+       /* Multi CS API info- valid entries in multi-CS array */
+       __u8 seq_arr_len;
+       __u8 pad[7];
 };
 
 #define HL_WAIT_CS_STATUS_COMPLETED    0
@@ -789,8 +801,15 @@ struct hl_wait_cs_out {
        __u32 status;
        /* HL_WAIT_CS_STATUS_FLAG* */
        __u32 flags;
-       /* valid only if HL_WAIT_CS_STATUS_FLAG_TIMESTAMP_VLD is set */
+       /*
+        * valid only if HL_WAIT_CS_STATUS_FLAG_TIMESTAMP_VLD is set
+        * for wait_cs: timestamp of CS completion
+        * for wait_multi_cs: timestamp of FIRST CS completion
+        */
        __s64 timestamp_nsec;
+       /* multi CS completion bitmap */
+       __u32 cs_completion_map;
+       __u32 pad;
 };
 
 union hl_wait_cs_args {