gru: dump chiplet state

[mirror_ubuntu-bionic-kernel.git] / drivers / misc / sgi-gru / grulib.h

diff --git a/drivers/misc/sgi-gru/grulib.h b/drivers/misc/sgi-gru/grulib.h
index e56e196a69982e5d4f3b78a3e8e27c544031ea5c..6ab872665e7f958af4c22fda544acfadfb839319 100644 (file)
--- a/drivers/misc/sgi-gru/grulib.h
+++ b/drivers/misc/sgi-gru/grulib.h
@@ -47,6 +47,9 @@
 /* For fetching GRU chiplet status */
 #define GRU_GET_CHIPLET_STATUS         _IOWR(GRU_IOCTL_NUM, 10, void *)
 
+/* For dumpping GRU chiplet state */
+#define GRU_DUMP_CHIPLET_STATE         _IOWR(GRU_IOCTL_NUM, 11, void *)
+
 /* For user TLB flushing (primarily for tests) */
 #define GRU_USER_FLUSH_TLB             _IOWR(GRU_IOCTL_NUM, 50, void *)
 
@@ -83,6 +86,36 @@ struct gru_flush_tlb_req {
        size_t          len;
 };
 
+/*
+ * Structure used to pass TLB flush parameters to the driver
+ */
+enum {dcs_pid, dcs_gid};
+struct gru_dump_chiplet_state_req {
+       unsigned int    op;
+       int             gid;
+       int             ctxnum;
+       char            data_opt;
+       char            lock_cch;
+       pid_t           pid;
+       void            *buf;
+       size_t          buflen;
+       /* ---- output --- */
+       unsigned int    num_contexts;
+};
+
+#define GRU_DUMP_MAGIC 0x3474ab6c
+struct gru_dump_context_header {
+       unsigned int    magic;
+       unsigned char   gid;
+       unsigned char   ctxnum;
+       unsigned char   cbrcnt;
+       unsigned char   dsrcnt;
+       pid_t           pid;
+       unsigned long   vaddr;
+       int             cch_locked;
+       unsigned long   data[0];
+};
+
 /*
  * GRU configuration info (temp - for testing)
  */