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/* Copyright 2013-2014 IBM Corp.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __OPAL_INTERNAL_H
#define __OPAL_INTERNAL_H
/****** Internal header for OPAL API related things in skiboot **********/
#include <skiboot.h>
/* An opal table entry */
struct opal_table_entry {
void *func;
u32 token;
u32 nargs;
};
#define opal_call(__tok, __func, __nargs) \
static struct opal_table_entry __e_##__func __used __section(".opal_table") = \
{ .func = __func, .token = __tok, \
.nargs = __nargs + 0 * sizeof(__func( __test_args##__nargs )) }
/* Make sure function takes args they claim. Look away now... */
#define __test_args0
#define __test_args1 0
#define __test_args2 0,0
#define __test_args3 0,0,0
#define __test_args4 0,0,0,0
#define __test_args5 0,0,0,0,0
#define __test_args6 0,0,0,0,0,0
#define __test_args7 0,0,0,0,0,0,0
extern struct opal_table_entry __opal_table_start[];
extern struct opal_table_entry __opal_table_end[];
extern uint64_t opal_pending_events;
extern struct dt_node *opal_node;
extern void opal_table_init(void);
extern void opal_update_pending_evt(uint64_t evt_mask, uint64_t evt_values);
__be64 opal_dynamic_event_alloc(void);
void opal_dynamic_event_free(__be64 event);
extern void add_opal_node(void);
#define opal_register(token, func, nargs) \
__opal_register((token) + 0*sizeof(func(__test_args##nargs)), \
(func), (nargs))
extern void __opal_register(uint64_t token, void *func, unsigned num_args);
int64_t opal_quiesce(uint32_t shutdown_type, int32_t cpu);
/* Warning: no locking at the moment, do at init time only
*
* XXX TODO: Add the big RCU-ish "opal API lock" to protect us here
* which will also be used for other things such as runtime updates
*/
extern void opal_add_poller(void (*poller)(void *data), void *data);
extern void opal_del_poller(void (*poller)(void *data));
extern void opal_run_pollers(void);
/*
* Warning: no locking, only call that from the init processor
*/
extern void opal_add_host_sync_notifier(bool (*notify)(void *data), void *data);
extern void opal_del_host_sync_notifier(bool (*notify)(void *data));
/*
* Opal internal function prototype
*/
struct OpalHMIEvent;
extern int occ_msg_queue_occ_reset(void);
extern unsigned long top_of_ram;
/*
* Returns true if the address is valid, false otherwise
*
* Checks if the passed address belongs to real address space
* or 0xc000... kernel address space. It also checks that
* addr <= total physical memory. The magic value 60 comes
* from 60 bit real address mentioned in section 5.7 of the
* Power ISA (Book 3S).
*/
static inline bool opal_addr_valid(const void *addr)
{
unsigned long val = (unsigned long)addr;
if ((val >> 60) != 0xc && (val >> 60) != 0x0)
return false;
val &= ~0xf000000000000000;
if (val > top_of_ram)
return false;
return true;
}
#endif /* __OPAL_INTERNAL_H */
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