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// SPDX-License-Identifier: Apache-2.0
/*
* Internal header for OPAL API related things in skiboot
*
* Copyright 2013-2019 IBM Corp.
*/
#ifndef __OPAL_INTERNAL_H
#define __OPAL_INTERNAL_H
#include <skiboot.h>
/* An opal table entry */
struct opal_table_entry {
void *func;
u32 token;
u32 nargs;
};
#ifdef __CHECKER__
#define __opal_func_test_arg(__func, __nargs) 0
#else
#define __opal_func_test_arg(__func, __nargs) \
sizeof(__func( __test_args##__nargs ))
#endif
#define opal_call(__tok, __func, __nargs) \
static struct opal_table_entry __e_##__func __used __section(".opal_table") = \
{ .func = __func, .token = __tok, \
.nargs = __nargs + 0 * __opal_func_test_arg(__func, __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*__opal_func_test_arg(func, 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), 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 &= ~0xf000000000000000UL;
if (val > top_of_ram)
return false;
return true;
}
#endif /* __OPAL_INTERNAL_H */
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