seperate checksum and code generating code.
use mmap instead of file io git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1504 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Li-Ta Lo
parent
815a803164
commit
6463ae7f1b
|
|
@ -5,20 +5,25 @@ LINUXBIOSROOT=../..
|
||||||
INCLUDEPATH=$(LINUXBIOSROOT)/src/arch/i386/include
|
INCLUDEPATH=$(LINUXBIOSROOT)/src/arch/i386/include
|
||||||
INCLUDE2=$(LINUXBIOSROOT)/src/include
|
INCLUDE2=$(LINUXBIOSROOT)/src/include
|
||||||
|
|
||||||
getpir: getpir.c
|
getpir: getpir.c checksum.o code_gen.o
|
||||||
gcc -o getpir -I$(INCLUDEPATH) -I$(INCLUDE2) getpir.c
|
gcc -o getpir -I$(INCLUDEPATH) -I$(INCLUDE2) getpir.c checksum.o code_gen.o
|
||||||
|
|
||||||
|
code_gen.o: code_gen.c
|
||||||
|
gcc -c -I$(INCLUDEPATH) -I$(INCLUDE2) code_gen.c
|
||||||
|
|
||||||
all: getpir checkpir
|
all: getpir checkpir
|
||||||
|
|
||||||
checkpir: checkpir.c irq_tables.o
|
checkpir: checkpir.c checksum.o irq_tables.o
|
||||||
gcc -o checkpir -I$(INCLUDEPATH) -I$(INCLUDE2) irq_tables.o checkpir.c
|
gcc -o checkpir -I$(INCLUDEPATH) -I$(INCLUDE2) irq_tables.o checksum.o checkpir.c
|
||||||
|
|
||||||
|
checksum.o: checksum.c
|
||||||
|
gcc -c -I$(INCLUDEPATH) -I$(INCLUDE2) checksum.c
|
||||||
|
|
||||||
irq_tables.o: irq_tables.c
|
irq_tables.o: irq_tables.c
|
||||||
gcc -c -I$(INCLUDEPATH) -I$(INCLUDE2) irq_tables.c
|
gcc -c -I$(INCLUDEPATH) -I$(INCLUDE2) irq_tables.c
|
||||||
|
|
||||||
clean:
|
clean:
|
||||||
rm -f irq_tables.o getpir checkpir *~
|
rm -f getpir checkpir *.o *~
|
||||||
|
|
||||||
cleantable:
|
cleantable:
|
||||||
rm -f irq_table.o
|
rm -f irq_table.o
|
||||||
|
|
|
||||||
|
|
@ -4,24 +4,12 @@
|
||||||
*/
|
*/
|
||||||
|
|
||||||
#include <stdio.h>
|
#include <stdio.h>
|
||||||
|
|
||||||
#include <device/pci.h>
|
|
||||||
#include <arch/pirq_routing.h>
|
#include <arch/pirq_routing.h>
|
||||||
|
|
||||||
struct irq_info se_arr[50];
|
#include "checksum.h"
|
||||||
|
|
||||||
struct irq_routing_table *rt;
|
struct irq_routing_table *rt;
|
||||||
|
|
||||||
int calc_checksum(struct irq_routing_table *rt)
|
|
||||||
{
|
|
||||||
long sum = 0, i;
|
|
||||||
uint8_t *addr, sum2 = 0;
|
|
||||||
|
|
||||||
addr = (uint8_t *) rt;
|
|
||||||
for (i = 0; i < rt->size; i++)
|
|
||||||
sum2 += addr[i];
|
|
||||||
return (sum2);
|
|
||||||
}
|
|
||||||
|
|
||||||
main()
|
main()
|
||||||
{
|
{
|
||||||
uint8_t sum, newsum;
|
uint8_t sum, newsum;
|
||||||
|
|
|
||||||
|
|
@ -0,0 +1,14 @@
|
||||||
|
#include <arch/pirq_routing.h>
|
||||||
|
|
||||||
|
#include "checksum.h"
|
||||||
|
|
||||||
|
int calc_checksum(struct irq_routing_table *rt)
|
||||||
|
{
|
||||||
|
long i;
|
||||||
|
uint8_t *addr, sum = 0;
|
||||||
|
|
||||||
|
addr = (uint8_t *) rt;
|
||||||
|
for (i = 0; i < rt->size; i++)
|
||||||
|
sum += addr[i];
|
||||||
|
return (sum);
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,6 @@
|
||||||
|
#ifndef __CHECKSUM_H__
|
||||||
|
#define __CHECKSUM_H__
|
||||||
|
|
||||||
|
extern int calc_checksum(struct irq_routing_table *rt);
|
||||||
|
|
||||||
|
#endif /* __CHECKSUN_H__ */
|
||||||
|
|
@ -0,0 +1,55 @@
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <arch/pirq_routing.h>
|
||||||
|
|
||||||
|
static char *preamble[] = {
|
||||||
|
"/* This file was generated by getpir.c, do not modify! \n (but if you do, please run checkpir on it to verify)\n",
|
||||||
|
" * Contains the IRQ Routing Table dumped directly from your memory, which BIOS sets up\n",
|
||||||
|
" *\n",
|
||||||
|
" * Documentation at : http://www.microsoft.com/hwdev/busbios/PCIIRQ.HTM\n*/\n\n",
|
||||||
|
"#include <arch/pirq_routing.h>\n\n",
|
||||||
|
"const struct irq_routing_table intel_irq_routing_table = {\n",
|
||||||
|
"\tPIRQ_SIGNATURE, /* u32 signature */\n",
|
||||||
|
"\tPIRQ_VERSION, /* u16 version */\n",
|
||||||
|
0
|
||||||
|
};
|
||||||
|
|
||||||
|
void code_gen(FILE * fpir, struct irq_routing_table *rt)
|
||||||
|
{
|
||||||
|
char **code = preamble;
|
||||||
|
struct irq_info *se_arr = (struct irq_info *) ((char *) rt + 32);
|
||||||
|
int i, ts = (rt->size - 32) / 16;
|
||||||
|
|
||||||
|
while (*code)
|
||||||
|
fprintf(fpir, "%s", *code++);
|
||||||
|
|
||||||
|
|
||||||
|
fprintf(fpir, "\t32+16*%d, /* there can be total %d devices on the bus */\n",
|
||||||
|
ts, ts);
|
||||||
|
fprintf(fpir, "\t0x%02x, /* Where the interrupt router lies (bus) */\n",
|
||||||
|
rt->rtr_bus);
|
||||||
|
fprintf(fpir, "\t(0x%02x<<3)|0x%01x, /* Where the interrupt router lies (dev) */\n",
|
||||||
|
rt->rtr_devfn >> 3, rt->rtr_devfn & 7);
|
||||||
|
fprintf(fpir, "\t%#x, /* IRQs devoted exclusively to PCI usage */\n",
|
||||||
|
rt->exclusive_irqs);
|
||||||
|
fprintf(fpir, "\t%#x, /* Vendor */\n", rt->rtr_vendor);
|
||||||
|
fprintf(fpir, "\t%#x, /* Device */\n", rt->rtr_device);
|
||||||
|
fprintf(fpir, "\t%#x, /* Crap (miniport) */\n",
|
||||||
|
rt->miniport_data);
|
||||||
|
fprintf(fpir, "\t{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* u8 rfu[11] */\n");
|
||||||
|
fprintf(fpir, "\t%#x, /* u8 checksum , this hase to set to some value that would give 0 after the sum of all bytes for this structure (including checksum) */\n",
|
||||||
|
rt->checksum);
|
||||||
|
fprintf(fpir, "\t{\n");
|
||||||
|
fprintf(fpir, "\t\t/* bus, dev|fn, {link, bitmap}, {link, bitmap}, {link, bitmap}, {link, bitmap}, slot, rfu */\n");
|
||||||
|
for (i = 0; i < ts; i++) {
|
||||||
|
fprintf(fpir, "\t\t{0x%02x,(0x%02x<<3)|0x%01x, {{0x%02x, 0x%04x}, {0x%02x, 0x%04x}, {0x%02x, 0x%04x}, {0x%02x, 0x0%04x}}, 0x%x, 0x%x},\n",
|
||||||
|
(se_arr+i)->bus, (se_arr+i)->devfn >> 3,
|
||||||
|
(se_arr+i)->devfn & 7, (se_arr+i)->irq[0].link,
|
||||||
|
(se_arr+i)->irq[0].bitmap, (se_arr+i)->irq[1].link,
|
||||||
|
(se_arr+i)->irq[1].bitmap, (se_arr+i)->irq[2].link,
|
||||||
|
(se_arr+i)->irq[2].bitmap, (se_arr+i)->irq[3].link,
|
||||||
|
(se_arr+i)->irq[3].bitmap, (se_arr+i)->slot,
|
||||||
|
(se_arr+i)->rfu);
|
||||||
|
}
|
||||||
|
fprintf(fpir, "\t}\n");
|
||||||
|
fprintf(fpir, "};\n");
|
||||||
|
}
|
||||||
|
|
@ -4,101 +4,50 @@
|
||||||
*/
|
*/
|
||||||
|
|
||||||
#include <stdio.h>
|
#include <stdio.h>
|
||||||
|
#include <sys/mman.h>
|
||||||
|
|
||||||
#include <device/pci.h>
|
|
||||||
#include <arch/pirq_routing.h>
|
#include <arch/pirq_routing.h>
|
||||||
|
|
||||||
struct irq_info se_arr[50];
|
#define O_RDONLY 0x00
|
||||||
struct irq_routing_table rt;
|
|
||||||
unsigned short ts;
|
|
||||||
|
|
||||||
|
static struct irq_routing_table *probe_table(int fd_mem)
|
||||||
int calc_checksum()
|
|
||||||
{
|
{
|
||||||
long sum = 0, i, j;
|
char *ptr, signature[] = "$PIR";
|
||||||
uint8_t *addr, sum2 = 0, data;
|
struct irq_routing_table *rt;
|
||||||
|
|
||||||
addr = (uint8_t *) & rt;
|
ptr = mmap(0, 0x10000, PROT_READ, MAP_SHARED,
|
||||||
for (i = 0; i < sizeof(struct irq_routing_table); i++)
|
fd_mem, (off_t) 0xf0000);
|
||||||
sum2 += addr[i];
|
|
||||||
for (i = 0; i < ts; i++) {
|
rt = (struct irq_routing_table *) memmem(ptr, 0xFFFF, signature, 4);
|
||||||
addr = (uint8_t *) & se_arr[i];
|
|
||||||
for (j = 0; j < sizeof(struct irq_info); j++)
|
if (rt != NULL) {
|
||||||
sum2 += addr[j];
|
printf("Found PCI IRQ Routing table signature at 0x%04x of system memory\n",
|
||||||
|
(char *) rt - ptr + 0xf0000);
|
||||||
|
} else {
|
||||||
|
printf("No PCI IRQ Routing table signature in the memory\n");
|
||||||
|
exit(1);
|
||||||
}
|
}
|
||||||
return (sum2);
|
return rt;
|
||||||
}
|
}
|
||||||
|
|
||||||
main()
|
main()
|
||||||
{
|
{
|
||||||
FILE *fmem, *fpir;
|
int fd_mem;
|
||||||
size_t rcount = 0;
|
FILE *fpir;
|
||||||
unsigned long b, p, pir = PIRQ_SIGNATURE;
|
struct irq_routing_table *rt;
|
||||||
unsigned long count;
|
|
||||||
int i, valid = 1, print = 0;
|
|
||||||
char cksum = 0;
|
|
||||||
unsigned char *ptr;
|
|
||||||
|
|
||||||
if (getuid()) {
|
if (getuid()) {
|
||||||
perror("Run me as root, I need access to /dev/mem");
|
perror("Run me as root, I need access to /dev/mem");
|
||||||
exit(1);
|
exit(1);
|
||||||
}
|
}
|
||||||
|
fd_mem = open("/dev/mem", O_RDONLY);
|
||||||
|
|
||||||
printf("Opening memory...\n");
|
printf("Probing PIRQ table in memory\n");
|
||||||
fmem = fopen("/dev/mem", "r");
|
rt = probe_table(fd_mem);
|
||||||
do {
|
|
||||||
rcount = fread(&b, 1, 4, fmem);
|
|
||||||
if (rcount > 0) {
|
|
||||||
if (b == pir) {
|
|
||||||
valid = 1;
|
|
||||||
printf("Found PCI IRQ Routing table signature at %x bytes from top of the memory\nValidating../\n",
|
|
||||||
count);
|
|
||||||
rt.signature = PIRQ_SIGNATURE;
|
|
||||||
ptr = (char *) &rt;
|
|
||||||
ptr = ptr + 4; // signature was read, advance 4 bytes
|
|
||||||
rcount = fread(ptr, 1, sizeof(struct irq_routing_table) - 4, fmem);
|
|
||||||
count = count + rcount;
|
|
||||||
printf("Version is:%d Table size:%d\n",
|
|
||||||
rt.version, rt.size);
|
|
||||||
if (rt.version != PIRQ_VERSION) {
|
|
||||||
printf("Invalid version\n");
|
|
||||||
valid = 0;
|
|
||||||
}
|
|
||||||
if (rt.size < 32) {
|
|
||||||
printf(" Invalid table size\n");
|
|
||||||
valid = 0;
|
|
||||||
}
|
|
||||||
if (rt.size % 16) {
|
|
||||||
printf(" Invalid table size (not a multiple of 16)\n");
|
|
||||||
valid = 0;
|
|
||||||
}
|
|
||||||
if (valid) {
|
|
||||||
// read slot entries
|
|
||||||
ts = (rt.size - 32) / 16;
|
|
||||||
printf("Reading %d slot entries...\n", ts);
|
|
||||||
for (i = 0; i < ts; i++) {
|
|
||||||
rcount =
|
|
||||||
fread(&se_arr[i], 1, 16, fmem);
|
|
||||||
count = count + rcount;
|
|
||||||
}
|
|
||||||
print = 1;
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
} else {
|
|
||||||
count = count + rcount;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
} while (rcount > 0);
|
|
||||||
|
|
||||||
if (!calc_checksum())
|
printf("Validating..\n");
|
||||||
|
if (!calc_checksum(rt))
|
||||||
printf("Checksum is ok!\n");
|
printf("Checksum is ok!\n");
|
||||||
printf("Closing memory\n");
|
|
||||||
fclose(fmem);
|
|
||||||
|
|
||||||
if (!print) {
|
|
||||||
printf("No table for you...\n");
|
|
||||||
return (0);
|
|
||||||
}
|
|
||||||
|
|
||||||
printf("Creating irq_tables.c .....\n");
|
printf("Creating irq_tables.c .....\n");
|
||||||
fpir = fopen("irq_tables.c", "w");
|
fpir = fopen("irq_tables.c", "w");
|
||||||
|
|
@ -106,43 +55,10 @@ main()
|
||||||
printf("Failed creating file!\n");
|
printf("Failed creating file!\n");
|
||||||
exit(2);
|
exit(2);
|
||||||
}
|
}
|
||||||
|
code_gen(fpir, rt);
|
||||||
fprintf(fpir, "/* This file was generated by getpir.c, do not modify! \n (but if you do, please run checkpir on it to verify)\n");
|
|
||||||
fprintf(fpir, " Contains the IRQ Routing Table dumped directly from your memory , wich BIOS sets up\n\n");
|
|
||||||
fprintf(fpir, " Documentation at : http://www.microsoft.com/hwdev/busbios/PCIIRQ.HTM\n*/\n\n");
|
|
||||||
fprintf(fpir, "#include <arch/pirq_routing.h>\n\n");
|
|
||||||
fprintf(fpir, "const struct irq_routing_table intel_irq_routing_table = {\n");
|
|
||||||
fprintf(fpir, "\tPIRQ_SIGNATURE, /* u32 signature */\n");
|
|
||||||
fprintf(fpir, "\tPIRQ_VERSION, /* u16 version */\n");
|
|
||||||
fprintf(fpir, "\t32+16*%d, /* there can be total %d devices on the bus */\n",
|
|
||||||
ts, ts);
|
|
||||||
fprintf(fpir, "\t0x%02x, /* Where the interrupt router lies (bus) */\n",
|
|
||||||
rt.rtr_bus);
|
|
||||||
fprintf(fpir, "\t(0x%02x<<3)|0x%01x, /* Where the interrupt router lies (dev) */\n",
|
|
||||||
rt.rtr_devfn >> 3, rt.rtr_devfn & 7);
|
|
||||||
fprintf(fpir, "\t%#x, /* IRQs devoted exclusively to PCI usage */\n",
|
|
||||||
rt.exclusive_irqs);
|
|
||||||
fprintf(fpir, "\t%#x, /* Vendor */\n", rt.rtr_vendor);
|
|
||||||
fprintf(fpir, "\t%#x, /* Device */\n", rt.rtr_device);
|
|
||||||
fprintf(fpir, "\t%#x, /* Crap (miniport) */\n",
|
|
||||||
rt.miniport_data);
|
|
||||||
fprintf(fpir, "\t{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* u8 rfu[11] */\n");
|
|
||||||
fprintf(fpir, "\t%#x, /* u8 checksum , this hase to set to some value that would give 0 after the sum of all bytes for this structure (including checksum) */\n",
|
|
||||||
rt.checksum);
|
|
||||||
fprintf(fpir, "\t{\n");
|
|
||||||
fprintf(fpir, "\t\t/* bus, dev|fn, {link, bitmap}, {link, bitmap}, {link, bitmap}, {link, bitmap}, slot, rfu */\n");
|
|
||||||
for (i = 0; i < ts; i++) {
|
|
||||||
fprintf(fpir, "\t\t{0x%02x,(0x%02x<<3)|0x%01x, {{0x%02x, 0x%04x}, {0x%02x, 0x%04x}, {0x%02x, 0x%04x}, {0x%02x, 0x0%04x}}, 0x%x, 0x%x},\n",
|
|
||||||
se_arr[i].bus, se_arr[i].devfn >> 3,
|
|
||||||
se_arr[i].devfn & 7, se_arr[i].irq[0].link,
|
|
||||||
se_arr[i].irq[0].bitmap, se_arr[i].irq[1].link,
|
|
||||||
se_arr[i].irq[1].bitmap, se_arr[i].irq[2].link,
|
|
||||||
se_arr[i].irq[2].bitmap, se_arr[i].irq[3].link,
|
|
||||||
se_arr[i].irq[3].bitmap, se_arr[i].slot,
|
|
||||||
se_arr[i].rfu);
|
|
||||||
}
|
|
||||||
fprintf(fpir, "\t}\n");
|
|
||||||
fprintf(fpir, "};\n");
|
|
||||||
fclose(fpir);
|
fclose(fpir);
|
||||||
|
|
||||||
|
close(fd_mem);
|
||||||
|
|
||||||
printf("Done, you can move the file to the LinuxBios tree now.\n");
|
printf("Done, you can move the file to the LinuxBios tree now.\n");
|
||||||
}
|
}
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue