[SPARC64]: Add hypervisor API negotiation and fix console bugs.

[mirror_ubuntu-artful-kernel.git] / include / asm-sparc64 / hypervisor.h

diff --git a/include/asm-sparc64/hypervisor.h b/include/asm-sparc64/hypervisor.h
index 612bf319753fe0dfbfc4a3e5e204295b52e97797..a5558c87556db268252472162169a9c3be6069da 100644 (file)
--- a/include/asm-sparc64/hypervisor.h
+++ b/include/asm-sparc64/hypervisor.h
@@ -940,6 +940,54 @@ struct hv_fault_status {
  */
 #define HV_FAST_CONS_PUTCHAR           0x61
 
+/* con_read()
+ * TRAP:       HV_FAST_TRAP
+ * FUNCTION:   HV_FAST_CONS_READ
+ * ARG0:       buffer real address
+ * ARG1:       buffer size in bytes
+ * RET0:       status
+ * RET1:       bytes read or BREAK or HUP
+ * ERRORS:     EWOULDBLOCK     No character available.
+ *
+ * Reads characters into a buffer from the console device.  If no
+ * character is available then an EWOULDBLOCK error is returned.
+ * If a character is available, then the returned status is EOK
+ * and the number of bytes read into the given buffer is provided
+ * in RET1.
+ *
+ * A virtual BREAK is represented by the 64-bit RET1 value -1.
+ *
+ * A virtual HUP signal is represented by the 64-bit RET1 value -2.
+ *
+ * If BREAK or HUP are indicated, no bytes were read into buffer.
+ */
+#define HV_FAST_CONS_READ              0x62
+
+/* con_write()
+ * TRAP:       HV_FAST_TRAP
+ * FUNCTION:   HV_FAST_CONS_WRITE
+ * ARG0:       buffer real address
+ * ARG1:       buffer size in bytes
+ * RET0:       status
+ * RET1:       bytes written
+ * ERRORS:     EWOULDBLOCK     Output buffer currently full, would block
+ *
+ * Send a characters in buffer to the console device.  Breaks must be
+ * sent using con_putchar().
+ */
+#define HV_FAST_CONS_WRITE             0x63
+
+#ifndef __ASSEMBLY__
+extern long sun4v_con_getchar(long *status);
+extern long sun4v_con_putchar(long c);
+extern long sun4v_con_read(unsigned long buffer,
+                          unsigned long size,
+                          unsigned long *bytes_read);
+extern unsigned long sun4v_con_write(unsigned long buffer,
+                                    unsigned long size,
+                                    unsigned long *bytes_written);
+#endif
+
 /* Trap trace services.
  *
  * The hypervisor provides a trap tracing capability for privileged
@@ -2121,8 +2169,41 @@ struct hv_mmu_statistics {
 #define HV_FAST_MMUSTAT_INFO           0x103
 
 /* Function numbers for HV_CORE_TRAP.  */
-#define HV_CORE_VER                    0x00
+#define HV_CORE_SET_VER                        0x00
 #define HV_CORE_PUTCHAR                        0x01
 #define HV_CORE_EXIT                   0x02
+#define HV_CORE_GET_VER                        0x03
+
+/* Hypervisor API groups for use with HV_CORE_SET_VER and
+ * HV_CORE_GET_VER.
+ */
+#define HV_GRP_SUN4V                   0x0000
+#define HV_GRP_CORE                    0x0001
+#define HV_GRP_INTR                    0x0002
+#define HV_GRP_SOFT_STATE              0x0003
+#define HV_GRP_PCI                     0x0100
+#define HV_GRP_LDOM                    0x0101
+#define HV_GRP_SVC_CHAN                        0x0102
+#define HV_GRP_NCS                     0x0103
+#define HV_GRP_NIAG_PERF               0x0200
+#define HV_GRP_FIRE_PERF               0x0201
+#define HV_GRP_DIAG                    0x0300
+
+#ifndef __ASSEMBLY__
+extern unsigned long sun4v_get_version(unsigned long group,
+                                      unsigned long *major,
+                                      unsigned long *minor);
+extern unsigned long sun4v_set_version(unsigned long group,
+                                      unsigned long major,
+                                      unsigned long minor,
+                                      unsigned long *actual_minor);
+
+extern int sun4v_hvapi_register(unsigned long group, unsigned long major,
+                               unsigned long *minor);
+extern void sun4v_hvapi_unregister(unsigned long group);
+extern int sun4v_hvapi_get(unsigned long group,
+                          unsigned long *major,
+                          unsigned long *minor);
+#endif
 
 #endif /* !(_SPARC64_HYPERVISOR_H) */