1 /* Copyright 2013-2018 IBM Corp. 2 * 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or 12 * implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef __DEBUG_DESCRIPTOR_H 18 #define __DEBUG_DESCRIPTOR_H 19 20 #define OPAL_BOOT_COMPLETE 0x1 21 /* Debug descriptor. This structure is pointed to by the word at offset 22 * 0x80 in the sapphire binary 23 */ 24 struct debug_descriptor { 25 u8 eye_catcher[8]; /* "OPALdbug" */ 26 #define DEBUG_DESC_VERSION 1 27 u32 version; 28 u8 console_log_levels; /* high 4 bits in memory, 29 * low 4 bits driver (e.g. uart). */ 30 u8 state_flags; /* various state flags - OPAL_BOOT_COMPLETE etc */ 31 u16 reserved2; 32 u32 reserved[2]; 33 34 /* Memory console */ 35 u64 memcons_phys; 36 u32 memcons_tce; 37 u32 memcons_obuf_tce; 38 u32 memcons_ibuf_tce; 39 40 /* Traces */ 41 u64 trace_mask; 42 u32 num_traces; 43 #define DEBUG_DESC_MAX_TRACES 256 44 u64 trace_phys[DEBUG_DESC_MAX_TRACES]; 45 u32 trace_size[DEBUG_DESC_MAX_TRACES]; 46 u32 trace_tce[DEBUG_DESC_MAX_TRACES]; 47 u16 trace_pir[DEBUG_DESC_MAX_TRACES]; 48 }; 49 extern struct debug_descriptor debug_descriptor; 50 opal_booting(void)51static inline bool opal_booting(void) 52 { 53 return !(debug_descriptor.state_flags & OPAL_BOOT_COMPLETE); 54 } 55 56 #endif 57