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/* Copyright 2016 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 __TARGET_H
#define __TARGET_H
#include <stdint.h>
#include <ccan/list/list.h>
#include <ccan/container_of/container_of.h>
#include "compiler.h"
#include "device.h"
#define PR_DEBUG(x, args...) \
fprintf(stderr, x, ##args)
#define PR_INFO(x, args...) \
fprintf(stderr, x, ##args)
#define PR_ERROR(x, args...) \
fprintf(stderr, "%s: " x, __FUNCTION__, ##args)
enum chip_type {CHIP_UNKNOWN, CHIP_P8, CHIP_P8NV, CHIP_P9};
struct target_class {
char *name;
struct list_head targets;
struct list_node class_head_link;
};
struct target {
char *name;
char *compatible;
char *class;
int (*probe)(struct target *target);
struct dt_node *dn;
struct list_node class_link;
};
struct target_class *find_target_class(const char *name);
struct target_class *require_target_class(const char *name);
extern struct list_head empty_list;
#define for_each_class_target(class_name, target) \
list_for_each((find_target_class(class_name) ? &require_target_class(class_name)->targets : &empty_list), target, class_link)
struct hw_unit_info {
void *hw_unit;
size_t size;
size_t struct_target_offset;
};
/* We can't pack the structs themselves directly into a special
* section because there doesn't seem to be any standard way of doing
* that due to alignment rules. So instead we pack pointers into a
* special section. */
#define DECLARE_HW_UNIT(name) \
const struct hw_unit_info __used name ##_hw_unit = \
{ .hw_unit = &name, .size = sizeof(name), .struct_target_offset = container_off(typeof(name), target) }; \
const struct hw_unit_info __used __section("hw_units") *name ##_hw_unit_p = &name ##_hw_unit
struct adu {
struct target target;
int (*getmem)(struct adu *, uint64_t, uint64_t *);
int (*putmem)(struct adu *, uint64_t, uint64_t, int);
};
#define target_to_adu(x) container_of(x, struct adu, target)
struct pib {
struct target target;
int (*read)(struct pib *, uint64_t, uint64_t *);
int (*write)(struct pib *, uint64_t, uint64_t);
void *priv;
};
#define target_to_pib(x) container_of(x, struct pib, target)
struct opb {
struct target target;
int (*read)(struct opb *, uint32_t, uint32_t *);
int (*write)(struct opb *, uint32_t, uint32_t);
};
#define target_to_opb(x) container_of(x, struct opb, target)
struct fsi {
struct target target;
int (*read)(struct fsi *, uint32_t, uint32_t *);
int (*write)(struct fsi *, uint32_t, uint32_t);
enum chip_type chip_type;
};
#define target_to_fsi(x) container_of(x, struct fsi, target)
struct chiplet {
struct target target;
};
#define target_to_chiplet(x) container_of(x, struct chiplet, target)
struct thread {
struct target target;
uint64_t status;
int id;
};
#define target_to_thread(x) container_of(x, struct thread, target)
void targets_init(void *fdt);
void target_probe(void);
int pib_read(struct target *pib_dt, uint64_t addr, uint64_t *data);
int pib_write(struct target *pib_dt, uint64_t addr, uint64_t data);
int opb_read(struct target *opb_dt, uint32_t addr, uint32_t *data);
int opb_write(struct target *opb_dt, uint32_t addr, uint32_t data);
int fsi_read(struct target *fsi_dt, uint32_t addr, uint32_t *data);
int fsi_write(struct target *fsi_dt, uint32_t addr, uint32_t data);
#endif
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