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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.
*/
/* Given a hdata dump, output the device tree. */
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <fcntl.h>
#include <assert.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdint.h>
#include <interrupts.h>
/* Our actual map. */
static void *spira_heap;
static size_t spira_heap_size;
static uint64_t base_addr;
/* Override ntuple_addr. */
#define ntuple_addr ntuple_addr
struct spira_ntuple;
static void *ntuple_addr(const struct spira_ntuple *n);
/* Stuff which core expects. */
#define __this_cpu ((struct cpu_thread *)NULL)
#define zalloc(expr) calloc(1, (expr))
/* Don't include processor-specific stuff. */
#define __PROCESSOR_H
#define PVR_TYPE(_pvr) _pvr
/* PVR definitions */
#define PVR_TYPE_P7 0x003f
#define PVR_TYPE_P7P 0x004a
#define PVR_TYPE_P8E 0x004b
#define PVR_TYPE_P8 0x004d
#define PVR_TYPE_P8NVL 0x004c
#define SPR_PVR 0x11f /* RO: Processor version register */
#define __CPU_H
struct cpu_thread {
uint32_t pir;
};
struct cpu_thread __boot_cpu, *boot_cpu = &__boot_cpu;
static unsigned long fake_pvr_type = PVR_TYPE_P7;
static inline unsigned long mfspr(unsigned int spr)
{
assert(spr == SPR_PVR);
return fake_pvr_type;
}
struct dt_node *add_ics_node(void)
{
return NULL;
}
#include <config.h>
#include <bitutils.h>
/* Your pointers won't be correct, that's OK. */
#define spira_check_ptr(ptr, file, line) ((ptr) != NULL)
#include "../cpu-common.c"
#include "../fsp.c"
#include "../hdif.c"
#include "../iohub.c"
#include "../memory.c"
#include "../paca.c"
#include "../pcia.c"
#include "../spira.c"
#include "../vpd.c"
#include "../vpd-common.c"
#include "../slca.c"
#include "../hostservices.c"
#include "../../core/vpd.c"
#include "../../core/device.c"
#include "../../core/chip.c"
#include <err.h>
char __rodata_start[1], __rodata_end[1];
enum proc_gen proc_gen = proc_gen_p7;
static void *ntuple_addr(const struct spira_ntuple *n)
{
uint64_t addr = be64_to_cpu(n->addr);
if (n->addr == 0)
return NULL;
assert(addr >= base_addr);
assert(addr < base_addr + spira_heap_size);
return spira_heap + ((unsigned long)addr - base_addr);
}
static void indent_num(unsigned indent)
{
unsigned int i;
for (i = 0; i < indent; i++)
putc(' ', stdout);
}
static void dump_val(const void *prop, size_t size)
{
size_t i;
for (i = 0; i < size; i++)
printf("%02x ", ((unsigned char *)prop)[i]);
}
/* Make sure valgrind knows these are undefined bytes. */
static void undefined_bytes(void *p, size_t len)
{
void *undef = malloc(len);
memcpy(p, undef, len);
free(undef);
}
static void dump_dt(const struct dt_node *root, unsigned indent)
{
const struct dt_node *i;
const struct dt_property *p;
list_for_each(&root->properties, p, list) {
indent_num(indent);
printf("prop: %s size: %zu val: ", p->name, p->len);
dump_val(p->prop, p->len);
printf("\n");
}
list_for_each(&root->children, i, list)
dump_dt(i, indent + 2);
}
int main(int argc, char *argv[])
{
int fd, r;
bool verbose = false, quiet = false;
while (argv[1]) {
if (strcmp(argv[1], "-v") == 0) {
verbose = true;
argv++;
argc--;
} else if (strcmp(argv[1], "-q") == 0) {
quiet = true;
argv++;
argc--;
} else
break;
}
if (argc != 3)
errx(1, "Usage: hdata [-v|-q] <spira-dump> <heap-dump>");
/* Copy in spira dump (assumes little has changed!). */
fd = open(argv[1], O_RDONLY);
if (fd < 0)
err(1, "opening %s", argv[1]);
r = read(fd, &spira, sizeof(spira));
if (r < sizeof(spira.hdr))
err(1, "reading %s gave %i", argv[1], r);
if (verbose)
printf("verbose: read spira %u bytes\n", r);
close(fd);
undefined_bytes((void *)&spira + r, sizeof(spira) - r);
base_addr = be64_to_cpu(spira.ntuples.heap.addr);
if (!base_addr)
errx(1, "Invalid base addr");
if (verbose)
printf("verbose: map.base_addr = %llx\n", (long long)base_addr);
fd = open(argv[2], O_RDONLY);
if (fd < 0)
err(1, "opening %s", argv[2]);
spira_heap_size = lseek(fd, 0, SEEK_END);
spira_heap = mmap(NULL, spira_heap_size, PROT_READ, MAP_SHARED, fd, 0);
if (spira_heap == MAP_FAILED)
err(1, "mmaping %s", argv[3]);
if (verbose)
printf("verbose: mapped %zu at %p\n",
spira_heap_size, spira_heap);
close(fd);
if (quiet) {
fclose(stdout);
fclose(stderr);
}
parse_hdat(false, 0);
if (!quiet)
dump_dt(dt_root, 0);
dt_free(dt_root);
return 0;
}
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