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-rw-r--r--util/amdfwtool/amdfwtool.c171
1 files changed, 105 insertions, 66 deletions
diff --git a/util/amdfwtool/amdfwtool.c b/util/amdfwtool/amdfwtool.c
index 3303a57c66..1f76162e30 100644
--- a/util/amdfwtool/amdfwtool.c
+++ b/util/amdfwtool/amdfwtool.c
@@ -77,6 +77,8 @@
#define MIN_ROM_KB 256
#define ALIGN(val, by) (((val) + (by) - 1) & ~((by) - 1))
+#define TABLE_ALIGNMENT 0x1000U
+#define BLOB_ALIGNMENT 0x100U
#define EMBEDDED_FW_SIGNATURE 0x55aa55aa
#define PSP_COOKIE 0x50535024 /* 'PSP$' */
@@ -275,6 +277,8 @@ typedef struct _psp_directory_table {
psp_directory_entry entries[];
} __attribute__((packed)) psp_directory_table;
+#define MAX_PSP_ENTRIES 0x1f
+
typedef struct _psp_combo_header {
uint32_t cookie;
uint32_t checksum;
@@ -294,6 +298,44 @@ typedef struct _psp_combo_directory {
psp_combo_entry entries[];
} __attribute__((packed)) psp_combo_directory;
+#define MAX_COMBO_ENTRIES 1
+
+typedef struct _context {
+ char *rom; /* target buffer, size of flash device */
+ uint32_t rom_size; /* size of flash device */
+ uint32_t current; /* pointer within flash & proxy buffer */
+} context;
+
+#define RUN_BASE(ctx) (0xFFFFFFFF - (ctx).rom_size + 1)
+#define RUN_OFFSET(ctx, offset) (RUN_BASE(ctx) + (offset))
+#define RUN_CURRENT(ctx) RUN_OFFSET((ctx), (ctx).current)
+#define BUFF_OFFSET(ctx, offset) ((void *)((ctx).rom + (offset)))
+#define BUFF_CURRENT(ctx) BUFF_OFFSET((ctx), (ctx).current)
+#define BUFF_TO_RUN(ctx, ptr) RUN_OFFSET((ctx), ((char *)(ptr) - (ctx).rom))
+#define BUFF_ROOM(ctx) ((ctx).rom_size - (ctx).current)
+
+static void *new_psp_dir(context *ctx)
+{
+ void *ptr;
+
+ ctx->current = ALIGN(ctx->current, TABLE_ALIGNMENT);
+ ptr = BUFF_CURRENT(*ctx);
+ ctx->current += sizeof(psp_directory_header)
+ + MAX_PSP_ENTRIES * sizeof(psp_directory_entry);
+ return ptr;
+}
+
+static void *new_combo_dir(context *ctx)
+{
+ void *ptr;
+
+ ctx->current = ALIGN(ctx->current, TABLE_ALIGNMENT);
+ ptr = BUFF_CURRENT(*ctx);
+ ctx->current += sizeof(psp_combo_header)
+ + MAX_COMBO_ENTRIES * sizeof(psp_combo_entry);
+ return ptr;
+}
+
static void fill_dir_header(void *directory, uint32_t count, uint32_t cookie)
{
if (cookie == PSP2_COOKIE) {
@@ -354,54 +396,55 @@ static ssize_t copy_blob(void *dest, const char *src_file, size_t room)
return bytes;
}
-static uint32_t integrate_firmwares(char *base, uint32_t pos,
+static void integrate_firmwares(context *ctx,
embedded_firmware *romsig,
- amd_fw_entry *fw_table, uint32_t rom_size)
+ amd_fw_entry *fw_table)
{
ssize_t bytes;
int i;
- uint32_t rom_base_address = 0xFFFFFFFF - rom_size + 1;
+
+ ctx->current += sizeof(embedded_firmware);
+ ctx->current = ALIGN(ctx->current, BLOB_ALIGNMENT);
for (i = 0; fw_table[i].type != AMD_FW_INVALID; i++) {
if (fw_table[i].filename != NULL) {
switch (fw_table[i].type) {
case AMD_FW_IMC:
- pos = ALIGN(pos, 0x10000U);
- romsig->imc_entry = pos + rom_base_address;
+ ctx->current = ALIGN(ctx->current, 0x10000U);
+ romsig->imc_entry = RUN_CURRENT(*ctx);
break;
case AMD_FW_GEC:
- romsig->gec_entry = pos + rom_base_address;
+ romsig->gec_entry = RUN_CURRENT(*ctx);
break;
case AMD_FW_XHCI:
- romsig->xhci_entry = pos + rom_base_address;
+ romsig->xhci_entry = RUN_CURRENT(*ctx);
break;
default:
/* Error */
break;
}
- bytes = copy_blob(base + pos,
- fw_table[i].filename, rom_size - pos);
+ bytes = copy_blob(BUFF_CURRENT(*ctx),
+ fw_table[i].filename, BUFF_ROOM(*ctx));
if (bytes <= 0) {
- free(base);
+ free(ctx->rom);
exit(1);
}
- pos = ALIGN(pos + bytes, 0x100U);
+ ctx->current = ALIGN(ctx->current + bytes,
+ BLOB_ALIGNMENT);
}
}
-
- return pos;
}
-static uint32_t integrate_psp_firmwares(char *base, uint32_t pos,
+static void integrate_psp_firmwares(context *ctx,
psp_directory_table *pspdir,
- amd_fw_entry *fw_table,
- uint32_t rom_size)
+ amd_fw_entry *fw_table)
{
ssize_t bytes;
unsigned int i, count;
- uint32_t rom_base_address = 0xFFFFFFFF - rom_size + 1;
+
+ ctx->current = ALIGN(ctx->current, BLOB_ALIGNMENT);
for (i = 0, count = 0; fw_table[i].type != AMD_FW_INVALID; i++) {
if (fw_table[i].type == AMD_PSP_FUSE_CHAIN) {
@@ -410,25 +453,32 @@ static uint32_t integrate_psp_firmwares(char *base, uint32_t pos,
pspdir->entries[count].addr = 1;
count++;
} else if (fw_table[i].filename != NULL) {
- bytes = copy_blob(base + pos,
- fw_table[i].filename, rom_size - pos);
+ bytes = copy_blob(BUFF_CURRENT(*ctx),
+ fw_table[i].filename, BUFF_ROOM(*ctx));
if (bytes <= 0) {
- free(base);
+ free(ctx->rom);
exit(1);
}
pspdir->entries[count].type = fw_table[i].type;
pspdir->entries[count].size = (uint32_t)bytes;
- pspdir->entries[count].addr = rom_base_address + pos;
+ pspdir->entries[count].addr = RUN_CURRENT(*ctx);
- pos = ALIGN(pos + bytes, 0x100U);
+ ctx->current = ALIGN(ctx->current + bytes,
+ BLOB_ALIGNMENT);
count++;
} else {
/* This APU doesn't have this firmware. */
}
}
+
+ if (count > MAX_PSP_ENTRIES) {
+ printf("Error: PSP entries exceed max allowed items\n");
+ free(ctx->rom);
+ exit(1);
+ }
+
fill_dir_header(pspdir, count, PSP_COOKIE);
- return pos;
}
static const char *optstring = "x:i:g:Ap:b:s:r:k:c:n:d:t:u:w:e:j:m:o:f:l:h";
@@ -486,14 +536,14 @@ int main(int argc, char **argv)
int retval = 0;
char *tmp;
char *rom = NULL;
- uint32_t current;
embedded_firmware *amd_romsig;
psp_directory_table *pspdir;
int comboable = 0;
-
int targetfd;
char *output = NULL;
- uint32_t rom_size = CONFIG_ROM_SIZE;
+ context ctx = {
+ .rom_size = CONFIG_ROM_SIZE,
+ };
uint32_t dir_location = 0;
uint32_t romsig_offset;
uint32_t rom_base_address;
@@ -567,7 +617,7 @@ int main(int argc, char **argv)
output = optarg;
break;
case 'f':
- rom_size = (uint32_t)strtoul(optarg, &tmp, 16);
+ ctx.rom_size = (uint32_t)strtoul(optarg, &tmp, 16);
if (*tmp != '\0') {
printf("Error: ROM size specified"
" incorrectly (%s)\n\n", optarg);
@@ -596,20 +646,15 @@ int main(int argc, char **argv)
retval = 1;
}
- if (!rom_size) {
- printf("Error: ROM Size is not specified.\n\n");
- retval = 1;
- }
-
- if (rom_size % 1024 != 0) {
+ if (ctx.rom_size % 1024 != 0) {
printf("Error: ROM Size (%d bytes) should be a multiple of"
- " 1024 bytes.\n\n", rom_size);
+ " 1024 bytes.\n\n", ctx.rom_size);
retval = 1;
}
- if (rom_size < MIN_ROM_KB * 1024) {
+ if (ctx.rom_size < MIN_ROM_KB * 1024) {
printf("Error: ROM Size (%dKB) must be at least %dKB.\n\n",
- rom_size / 1024, MIN_ROM_KB);
+ ctx.rom_size / 1024, MIN_ROM_KB);
retval = 1;
}
@@ -618,9 +663,9 @@ int main(int argc, char **argv)
return retval;
}
- printf(" AMDFWTOOL Using ROM size of %dKB\n", rom_size / 1024);
+ printf(" AMDFWTOOL Using ROM size of %dKB\n", ctx.rom_size / 1024);
- rom_base_address = 0xFFFFFFFF - rom_size + 1;
+ rom_base_address = 0xFFFFFFFF - ctx.rom_size + 1;
if (dir_location && (dir_location < rom_base_address)) {
printf("Error: Directory location outside of ROM.\n\n");
return 1;
@@ -642,60 +687,54 @@ int main(int argc, char **argv)
return 1;
}
- rom = malloc(rom_size);
- if (!rom)
+ ctx.rom = malloc(ctx.rom_size);
+ if (!ctx.rom) {
+ printf("Error: Failed to allocate memory\n");
return 1;
- memset(rom, 0xFF, rom_size);
+ }
+ memset(ctx.rom, 0xFF, ctx.rom_size);
if (dir_location)
- romsig_offset = current = dir_location - rom_base_address;
+ romsig_offset = ctx.current = dir_location - rom_base_address;
else
- romsig_offset = current = AMD_ROMSIG_OFFSET;
- printf(" AMDFWTOOL Using firmware directory location of %08lx\n",
- (unsigned long)rom_base_address + current);
+ romsig_offset = ctx.current = AMD_ROMSIG_OFFSET;
+ printf(" AMDFWTOOL Using firmware directory location of 0x%08x\n",
+ RUN_CURRENT(ctx));
- amd_romsig = (embedded_firmware *)(rom + romsig_offset);
+ amd_romsig = BUFF_OFFSET(ctx, romsig_offset);
amd_romsig->signature = EMBEDDED_FW_SIGNATURE;
amd_romsig->imc_entry = 0;
amd_romsig->gec_entry = 0;
amd_romsig->xhci_entry = 0;
- current += sizeof(embedded_firmware);
- current = ALIGN(current, 0x1000U);
- current = integrate_firmwares(rom, current, amd_romsig,
- amd_fw_table, rom_size);
+ integrate_firmwares(&ctx, amd_romsig, amd_fw_table);
+
+ ctx.current = ALIGN(ctx.current, 0x10000U); /* todo: is necessary? */
+
+ pspdir = new_psp_dir(&ctx);
+ integrate_psp_firmwares(&ctx, pspdir, amd_psp_fw_table);
- current = ALIGN(current, 0x10000U);
if (comboable)
- amd_romsig->comboable = current + rom_base_address;
+ amd_romsig->comboable = BUFF_TO_RUN(ctx, pspdir);
else
- amd_romsig->psp_entry = current + rom_base_address;
+ amd_romsig->psp_entry = BUFF_TO_RUN(ctx, pspdir);
#if PSP_COMBO
- /* TODO: remove the hardcode. */
- psp_combo_directory *combo_dir =
- (psp_combo_directory *)(rom + current);
- current = ALIGN(current + sizeof(psp_combo_header)
- + 1 * sizeof(psp_combo_entry), 0x1000);
+ psp_combo_directory *combo_dir = new_combo_dir(&ctx);
+ amd_romsig->comboable = BUFF_TO_RUN(ctx, combo_dir);
/* 0 -Compare PSP ID, 1 -Compare chip family ID */
combo_dir->entries[0].id_sel = 0;
/* TODO: PSP ID. Documentation is needed. */
combo_dir->entries[0].id = 0x10220B00;
- combo_dir->entries[0].lvl2_addr = current + rom_base_address;
+ combo_dir->entries[0].lvl2_addr = BUFF_TO_RUN(ctx, pspdir);
combo_dir->header.lookup = 1;
fill_dir_header(combo_dir, 1, PSP2_COOKIE);
#endif
- pspdir = (void *)(rom + current);
- current += 0x200; /* Conservative size of pspdir */
- current = integrate_psp_firmwares(rom, current, pspdir,
- amd_psp_fw_table, rom_size);
-
-
targetfd = open(output, O_RDWR | O_CREAT | O_TRUNC, 0666);
if (targetfd >= 0) {
- write(targetfd, amd_romsig, current - romsig_offset);
+ write(targetfd, amd_romsig, ctx.current - romsig_offset);
close(targetfd);
} else {
printf("Error: could not open file: %s\n", output);
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