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Diffstat (limited to 'arch/powerpc/kernel/prom_init.c')
-rw-r--r--arch/powerpc/kernel/prom_init.c626
1 files changed, 323 insertions, 303 deletions
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index 779f34049a5..7f7fb7fd991 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -66,8 +66,8 @@
* is running at whatever address it has been loaded at.
* On ppc32 we compile with -mrelocatable, which means that references
* to extern and static variables get relocated automatically.
- * On ppc64 we have to relocate the references explicitly with
- * RELOC. (Note that strings count as static variables.)
+ * ppc64 objects are always relocatable, we just need to relocate the
+ * TOC.
*
* Because OF may have mapped I/O devices into the area starting at
* KERNELBASE, particularly on CHRP machines, we can't safely call
@@ -79,13 +79,11 @@
* On ppc64, 64 bit values are truncated to 32 bits (and
* fortunately don't get interpreted as two arguments).
*/
+#define ADDR(x) (u32)(unsigned long)(x)
+
#ifdef CONFIG_PPC64
-#define RELOC(x) (*PTRRELOC(&(x)))
-#define ADDR(x) (u32) add_reloc_offset((unsigned long)(x))
#define OF_WORKAROUNDS 0
#else
-#define RELOC(x) (x)
-#define ADDR(x) (u32) (x)
#define OF_WORKAROUNDS of_workarounds
int of_workarounds;
#endif
@@ -95,7 +93,7 @@ int of_workarounds;
#define PROM_BUG() do { \
prom_printf("kernel BUG at %s line 0x%x!\n", \
- RELOC(__FILE__), __LINE__); \
+ __FILE__, __LINE__); \
__asm__ __volatile__(".long " BUG_ILLEGAL_INSTR); \
} while (0)
@@ -233,7 +231,7 @@ static int __init call_prom(const char *service, int nargs, int nret, ...)
for (i = 0; i < nret; i++)
args.args[nargs+i] = 0;
- if (enter_prom(&args, RELOC(prom_entry)) < 0)
+ if (enter_prom(&args, prom_entry) < 0)
return PROM_ERROR;
return (nret > 0) ? args.args[nargs] : 0;
@@ -258,7 +256,7 @@ static int __init call_prom_ret(const char *service, int nargs, int nret,
for (i = 0; i < nret; i++)
args.args[nargs+i] = 0;
- if (enter_prom(&args, RELOC(prom_entry)) < 0)
+ if (enter_prom(&args, prom_entry) < 0)
return PROM_ERROR;
if (rets != NULL)
@@ -272,20 +270,19 @@ static int __init call_prom_ret(const char *service, int nargs, int nret,
static void __init prom_print(const char *msg)
{
const char *p, *q;
- struct prom_t *_prom = &RELOC(prom);
- if (_prom->stdout == 0)
+ if (prom.stdout == 0)
return;
for (p = msg; *p != 0; p = q) {
for (q = p; *q != 0 && *q != '\n'; ++q)
;
if (q > p)
- call_prom("write", 3, 1, _prom->stdout, p, q - p);
+ call_prom("write", 3, 1, prom.stdout, p, q - p);
if (*q == 0)
break;
++q;
- call_prom("write", 3, 1, _prom->stdout, ADDR("\r\n"), 2);
+ call_prom("write", 3, 1, prom.stdout, ADDR("\r\n"), 2);
}
}
@@ -294,7 +291,6 @@ static void __init prom_print_hex(unsigned long val)
{
int i, nibbles = sizeof(val)*2;
char buf[sizeof(val)*2+1];
- struct prom_t *_prom = &RELOC(prom);
for (i = nibbles-1; i >= 0; i--) {
buf[i] = (val & 0xf) + '0';
@@ -303,7 +299,7 @@ static void __init prom_print_hex(unsigned long val)
val >>= 4;
}
buf[nibbles] = '\0';
- call_prom("write", 3, 1, _prom->stdout, buf, nibbles);
+ call_prom("write", 3, 1, prom.stdout, buf, nibbles);
}
/* max number of decimal digits in an unsigned long */
@@ -312,7 +308,6 @@ static void __init prom_print_dec(unsigned long val)
{
int i, size;
char buf[UL_DIGITS+1];
- struct prom_t *_prom = &RELOC(prom);
for (i = UL_DIGITS-1; i >= 0; i--) {
buf[i] = (val % 10) + '0';
@@ -322,7 +317,7 @@ static void __init prom_print_dec(unsigned long val)
}
/* shift stuff down */
size = UL_DIGITS - i;
- call_prom("write", 3, 1, _prom->stdout, buf+i, size);
+ call_prom("write", 3, 1, prom.stdout, buf+i, size);
}
static void __init prom_printf(const char *format, ...)
@@ -331,22 +326,18 @@ static void __init prom_printf(const char *format, ...)
va_list args;
unsigned long v;
long vs;
- struct prom_t *_prom = &RELOC(prom);
va_start(args, format);
-#ifdef CONFIG_PPC64
- format = PTRRELOC(format);
-#endif
for (p = format; *p != 0; p = q) {
for (q = p; *q != 0 && *q != '\n' && *q != '%'; ++q)
;
if (q > p)
- call_prom("write", 3, 1, _prom->stdout, p, q - p);
+ call_prom("write", 3, 1, prom.stdout, p, q - p);
if (*q == 0)
break;
if (*q == '\n') {
++q;
- call_prom("write", 3, 1, _prom->stdout,
+ call_prom("write", 3, 1, prom.stdout,
ADDR("\r\n"), 2);
continue;
}
@@ -368,7 +359,7 @@ static void __init prom_printf(const char *format, ...)
++q;
vs = va_arg(args, int);
if (vs < 0) {
- prom_print(RELOC("-"));
+ prom_print("-");
vs = -vs;
}
prom_print_dec(vs);
@@ -389,7 +380,7 @@ static void __init prom_printf(const char *format, ...)
++q;
vs = va_arg(args, long);
if (vs < 0) {
- prom_print(RELOC("-"));
+ prom_print("-");
vs = -vs;
}
prom_print_dec(vs);
@@ -403,7 +394,6 @@ static void __init prom_printf(const char *format, ...)
static unsigned int __init prom_claim(unsigned long virt, unsigned long size,
unsigned long align)
{
- struct prom_t *_prom = &RELOC(prom);
if (align == 0 && (OF_WORKAROUNDS & OF_WA_CLAIM)) {
/*
@@ -414,21 +404,21 @@ static unsigned int __init prom_claim(unsigned long virt, unsigned long size,
prom_arg_t result;
ret = call_prom_ret("call-method", 5, 2, &result,
- ADDR("claim"), _prom->memory,
+ ADDR("claim"), prom.memory,
align, size, virt);
if (ret != 0 || result == -1)
return -1;
ret = call_prom_ret("call-method", 5, 2, &result,
- ADDR("claim"), _prom->mmumap,
+ ADDR("claim"), prom.mmumap,
align, size, virt);
if (ret != 0) {
call_prom("call-method", 4, 1, ADDR("release"),
- _prom->memory, size, virt);
+ prom.memory, size, virt);
return -1;
}
/* the 0x12 is M (coherence) + PP == read/write */
call_prom("call-method", 6, 1,
- ADDR("map"), _prom->mmumap, 0x12, size, virt, virt);
+ ADDR("map"), prom.mmumap, 0x12, size, virt, virt);
return virt;
}
return call_prom("claim", 3, 1, (prom_arg_t)virt, (prom_arg_t)size,
@@ -437,13 +427,10 @@ static unsigned int __init prom_claim(unsigned long virt, unsigned long size,
static void __init __attribute__((noreturn)) prom_panic(const char *reason)
{
-#ifdef CONFIG_PPC64
- reason = PTRRELOC(reason);
-#endif
prom_print(reason);
/* Do not call exit because it clears the screen on pmac
* it also causes some sort of double-fault on early pmacs */
- if (RELOC(of_platform) == PLATFORM_POWERMAC)
+ if (of_platform == PLATFORM_POWERMAC)
asm("trap\n");
/* ToDo: should put up an SRC here on pSeries */
@@ -525,13 +512,13 @@ static int __init prom_setprop(phandle node, const char *nodename,
add_string(&p, tohex((u32)(unsigned long) value));
add_string(&p, tohex(valuelen));
add_string(&p, tohex(ADDR(pname)));
- add_string(&p, tohex(strlen(RELOC(pname))));
+ add_string(&p, tohex(strlen(pname)));
add_string(&p, "property");
*p = 0;
return call_prom("interpret", 1, 1, (u32)(unsigned long) cmd);
}
-/* We can't use the standard versions because of RELOC headaches. */
+/* We can't use the standard versions because of relocation headaches. */
#define isxdigit(c) (('0' <= (c) && (c) <= '9') \
|| ('a' <= (c) && (c) <= 'f') \
|| ('A' <= (c) && (c) <= 'F'))
@@ -598,43 +585,42 @@ unsigned long prom_memparse(const char *ptr, const char **retptr)
*/
static void __init early_cmdline_parse(void)
{
- struct prom_t *_prom = &RELOC(prom);
const char *opt;
char *p;
int l = 0;
- RELOC(prom_cmd_line[0]) = 0;
- p = RELOC(prom_cmd_line);
- if ((long)_prom->chosen > 0)
- l = prom_getprop(_prom->chosen, "bootargs", p, COMMAND_LINE_SIZE-1);
+ prom_cmd_line[0] = 0;
+ p = prom_cmd_line;
+ if ((long)prom.chosen > 0)
+ l = prom_getprop(prom.chosen, "bootargs", p, COMMAND_LINE_SIZE-1);
#ifdef CONFIG_CMDLINE
if (l <= 0 || p[0] == '\0') /* dbl check */
- strlcpy(RELOC(prom_cmd_line),
- RELOC(CONFIG_CMDLINE), sizeof(prom_cmd_line));
+ strlcpy(prom_cmd_line,
+ CONFIG_CMDLINE, sizeof(prom_cmd_line));
#endif /* CONFIG_CMDLINE */
- prom_printf("command line: %s\n", RELOC(prom_cmd_line));
+ prom_printf("command line: %s\n", prom_cmd_line);
#ifdef CONFIG_PPC64
- opt = strstr(RELOC(prom_cmd_line), RELOC("iommu="));
+ opt = strstr(prom_cmd_line, "iommu=");
if (opt) {
prom_printf("iommu opt is: %s\n", opt);
opt += 6;
while (*opt && *opt == ' ')
opt++;
- if (!strncmp(opt, RELOC("off"), 3))
- RELOC(prom_iommu_off) = 1;
- else if (!strncmp(opt, RELOC("force"), 5))
- RELOC(prom_iommu_force_on) = 1;
+ if (!strncmp(opt, "off", 3))
+ prom_iommu_off = 1;
+ else if (!strncmp(opt, "force", 5))
+ prom_iommu_force_on = 1;
}
#endif
- opt = strstr(RELOC(prom_cmd_line), RELOC("mem="));
+ opt = strstr(prom_cmd_line, "mem=");
if (opt) {
opt += 4;
- RELOC(prom_memory_limit) = prom_memparse(opt, (const char **)&opt);
+ prom_memory_limit = prom_memparse(opt, (const char **)&opt);
#ifdef CONFIG_PPC64
/* Align to 16 MB == size of ppc64 large page */
- RELOC(prom_memory_limit) = ALIGN(RELOC(prom_memory_limit), 0x1000000);
+ prom_memory_limit = ALIGN(prom_memory_limit, 0x1000000);
#endif
}
}
@@ -887,7 +873,7 @@ static int __init prom_count_smt_threads(void)
type[0] = 0;
prom_getprop(node, "device_type", type, sizeof(type));
- if (strcmp(type, RELOC("cpu")))
+ if (strcmp(type, "cpu"))
continue;
/*
* There is an entry for each smt thread, each entry being
@@ -929,7 +915,7 @@ static void __init prom_send_capabilities(void)
* (we assume this is the same for all cores) and use it to
* divide NR_CPUS.
*/
- cores = (u32 *)PTRRELOC(&ibm_architecture_vec[IBM_ARCH_VEC_NRCORES_OFFSET]);
+ cores = (u32 *)&ibm_architecture_vec[IBM_ARCH_VEC_NRCORES_OFFSET];
if (*cores != NR_CPUS) {
prom_printf("WARNING ! "
"ibm_architecture_vec structure inconsistent: %lu!\n",
@@ -1005,21 +991,21 @@ static void __init prom_send_capabilities(void)
*/
static unsigned long __init alloc_up(unsigned long size, unsigned long align)
{
- unsigned long base = RELOC(alloc_bottom);
+ unsigned long base = alloc_bottom;
unsigned long addr = 0;
if (align)
base = _ALIGN_UP(base, align);
prom_debug("alloc_up(%x, %x)\n", size, align);
- if (RELOC(ram_top) == 0)
+ if (ram_top == 0)
prom_panic("alloc_up() called with mem not initialized\n");
if (align)
- base = _ALIGN_UP(RELOC(alloc_bottom), align);
+ base = _ALIGN_UP(alloc_bottom, align);
else
- base = RELOC(alloc_bottom);
+ base = alloc_bottom;
- for(; (base + size) <= RELOC(alloc_top);
+ for(; (base + size) <= alloc_top;
base = _ALIGN_UP(base + 0x100000, align)) {
prom_debug(" trying: 0x%x\n\r", base);
addr = (unsigned long)prom_claim(base, size, 0);
@@ -1031,14 +1017,14 @@ static unsigned long __init alloc_up(unsigned long size, unsigned long align)
}
if (addr == 0)
return 0;
- RELOC(alloc_bottom) = addr + size;
+ alloc_bottom = addr + size;
prom_debug(" -> %x\n", addr);
- prom_debug(" alloc_bottom : %x\n", RELOC(alloc_bottom));
- prom_debug(" alloc_top : %x\n", RELOC(alloc_top));
- prom_debug(" alloc_top_hi : %x\n", RELOC(alloc_top_high));
- prom_debug(" rmo_top : %x\n", RELOC(rmo_top));
- prom_debug(" ram_top : %x\n", RELOC(ram_top));
+ prom_debug(" alloc_bottom : %x\n", alloc_bottom);
+ prom_debug(" alloc_top : %x\n", alloc_top);
+ prom_debug(" alloc_top_hi : %x\n", alloc_top_high);
+ prom_debug(" rmo_top : %x\n", rmo_top);
+ prom_debug(" ram_top : %x\n", ram_top);
return addr;
}
@@ -1054,32 +1040,32 @@ static unsigned long __init alloc_down(unsigned long size, unsigned long align,
unsigned long base, addr = 0;
prom_debug("alloc_down(%x, %x, %s)\n", size, align,
- highmem ? RELOC("(high)") : RELOC("(low)"));
- if (RELOC(ram_top) == 0)
+ highmem ? "(high)" : "(low)");
+ if (ram_top == 0)
prom_panic("alloc_down() called with mem not initialized\n");
if (highmem) {
/* Carve out storage for the TCE table. */
- addr = _ALIGN_DOWN(RELOC(alloc_top_high) - size, align);
- if (addr <= RELOC(alloc_bottom))
+ addr = _ALIGN_DOWN(alloc_top_high - size, align);
+ if (addr <= alloc_bottom)
return 0;
/* Will we bump into the RMO ? If yes, check out that we
* didn't overlap existing allocations there, if we did,
* we are dead, we must be the first in town !
*/
- if (addr < RELOC(rmo_top)) {
+ if (addr < rmo_top) {
/* Good, we are first */
- if (RELOC(alloc_top) == RELOC(rmo_top))
- RELOC(alloc_top) = RELOC(rmo_top) = addr;
+ if (alloc_top == rmo_top)
+ alloc_top = rmo_top = addr;
else
return 0;
}
- RELOC(alloc_top_high) = addr;
+ alloc_top_high = addr;
goto bail;
}
- base = _ALIGN_DOWN(RELOC(alloc_top) - size, align);
- for (; base > RELOC(alloc_bottom);
+ base = _ALIGN_DOWN(alloc_top - size, align);
+ for (; base > alloc_bottom;
base = _ALIGN_DOWN(base - 0x100000, align)) {
prom_debug(" trying: 0x%x\n\r", base);
addr = (unsigned long)prom_claim(base, size, 0);
@@ -1089,15 +1075,15 @@ static unsigned long __init alloc_down(unsigned long size, unsigned long align,
}
if (addr == 0)
return 0;
- RELOC(alloc_top) = addr;
+ alloc_top = addr;
bail:
prom_debug(" -> %x\n", addr);
- prom_debug(" alloc_bottom : %x\n", RELOC(alloc_bottom));
- prom_debug(" alloc_top : %x\n", RELOC(alloc_top));
- prom_debug(" alloc_top_hi : %x\n", RELOC(alloc_top_high));
- prom_debug(" rmo_top : %x\n", RELOC(rmo_top));
- prom_debug(" ram_top : %x\n", RELOC(ram_top));
+ prom_debug(" alloc_bottom : %x\n", alloc_bottom);
+ prom_debug(" alloc_top : %x\n", alloc_top);
+ prom_debug(" alloc_top_hi : %x\n", alloc_top_high);
+ prom_debug(" rmo_top : %x\n", rmo_top);
+ prom_debug(" ram_top : %x\n", ram_top);
return addr;
}
@@ -1137,7 +1123,7 @@ static unsigned long __init prom_next_cell(int s, cell_t **cellp)
static void __init reserve_mem(u64 base, u64 size)
{
u64 top = base + size;
- unsigned long cnt = RELOC(mem_reserve_cnt);
+ unsigned long cnt = mem_reserve_cnt;
if (size == 0)
return;
@@ -1152,9 +1138,9 @@ static void __init reserve_mem(u64 base, u64 size)
if (cnt >= (MEM_RESERVE_MAP_SIZE - 1))
prom_panic("Memory reserve map exhausted !\n");
- RELOC(mem_reserve_map)[cnt].base = base;
- RELOC(mem_reserve_map)[cnt].size = size;
- RELOC(mem_reserve_cnt) = cnt + 1;
+ mem_reserve_map[cnt].base = base;
+ mem_reserve_map[cnt].size = size;
+ mem_reserve_cnt = cnt + 1;
}
/*
@@ -1167,7 +1153,6 @@ static void __init prom_init_mem(void)
char *path, type[64];
unsigned int plen;
cell_t *p, *endp;
- struct prom_t *_prom = &RELOC(prom);
u32 rac, rsc;
/*
@@ -1176,14 +1161,14 @@ static void __init prom_init_mem(void)
* 2) top of memory
*/
rac = 2;
- prom_getprop(_prom->root, "#address-cells", &rac, sizeof(rac));
+ prom_getprop(prom.root, "#address-cells", &rac, sizeof(rac));
rsc = 1;
- prom_getprop(_prom->root, "#size-cells", &rsc, sizeof(rsc));
+ prom_getprop(prom.root, "#size-cells", &rsc, sizeof(rsc));
prom_debug("root_addr_cells: %x\n", (unsigned long) rac);
prom_debug("root_size_cells: %x\n", (unsigned long) rsc);
prom_debug("scanning memory:\n");
- path = RELOC(prom_scratch);
+ path = prom_scratch;
for (node = 0; prom_next_node(&node); ) {
type[0] = 0;
@@ -1196,15 +1181,15 @@ static void __init prom_init_mem(void)
*/
prom_getprop(node, "name", type, sizeof(type));
}
- if (strcmp(type, RELOC("memory")))
+ if (strcmp(type, "memory"))
continue;
- plen = prom_getprop(node, "reg", RELOC(regbuf), sizeof(regbuf));
+ plen = prom_getprop(node, "reg", regbuf, sizeof(regbuf));
if (plen > sizeof(regbuf)) {
prom_printf("memory node too large for buffer !\n");
plen = sizeof(regbuf);
}
- p = RELOC(regbuf);
+ p = regbuf;
endp = p + (plen / sizeof(cell_t));
#ifdef DEBUG_PROM
@@ -1222,14 +1207,14 @@ static void __init prom_init_mem(void)
if (size == 0)
continue;
prom_debug(" %x %x\n", base, size);
- if (base == 0 && (RELOC(of_platform) & PLATFORM_LPAR))
- RELOC(rmo_top) = size;
- if ((base + size) > RELOC(ram_top))
- RELOC(ram_top) = base + size;
+ if (base == 0 && (of_platform & PLATFORM_LPAR))
+ rmo_top = size;
+ if ((base + size) > ram_top)
+ ram_top = base + size;
}
}
- RELOC(alloc_bottom) = PAGE_ALIGN((unsigned long)&RELOC(_end) + 0x4000);
+ alloc_bottom = PAGE_ALIGN((unsigned long)&_end + 0x4000);
/*
* If prom_memory_limit is set we reduce the upper limits *except* for
@@ -1237,20 +1222,20 @@ static void __init prom_init_mem(void)
* TCE's up there.
*/
- RELOC(alloc_top_high) = RELOC(ram_top);
+ alloc_top_high = ram_top;
- if (RELOC(prom_memory_limit)) {
- if (RELOC(prom_memory_limit) <= RELOC(alloc_bottom)) {
+ if (prom_memory_limit) {
+ if (prom_memory_limit <= alloc_bottom) {
prom_printf("Ignoring mem=%x <= alloc_bottom.\n",
- RELOC(prom_memory_limit));
- RELOC(prom_memory_limit) = 0;
- } else if (RELOC(prom_memory_limit) >= RELOC(ram_top)) {
+ prom_memory_limit);
+ prom_memory_limit = 0;
+ } else if (prom_memory_limit >= ram_top) {
prom_printf("Ignoring mem=%x >= ram_top.\n",
- RELOC(prom_memory_limit));
- RELOC(prom_memory_limit) = 0;
+ prom_memory_limit);
+ prom_memory_limit = 0;
} else {
- RELOC(ram_top) = RELOC(prom_memory_limit);
- RELOC(rmo_top) = min(RELOC(rmo_top), RELOC(prom_memory_limit));
+ ram_top = prom_memory_limit;
+ rmo_top = min(rmo_top, prom_memory_limit);
}
}
@@ -1262,36 +1247,35 @@ static void __init prom_init_mem(void)
* Since 768MB is plenty of room, and we need to cap to something
* reasonable on 32-bit, cap at 768MB on all machines.
*/
- if (!RELOC(rmo_top))
- RELOC(rmo_top) = RELOC(ram_top);
- RELOC(rmo_top) = min(0x30000000ul, RELOC(rmo_top));
- RELOC(alloc_top) = RELOC(rmo_top);
- RELOC(alloc_top_high) = RELOC(ram_top);
+ if (!rmo_top)
+ rmo_top = ram_top;
+ rmo_top = min(0x30000000ul, rmo_top);
+ alloc_top = rmo_top;
+ alloc_top_high = ram_top;
/*
* Check if we have an initrd after the kernel but still inside
* the RMO. If we do move our bottom point to after it.
*/
- if (RELOC(prom_initrd_start) &&
- RELOC(prom_initrd_start) < RELOC(rmo_top) &&
- RELOC(prom_initrd_end) > RELOC(alloc_bottom))
- RELOC(alloc_bottom) = PAGE_ALIGN(RELOC(prom_initrd_end));
+ if (prom_initrd_start &&
+ prom_initrd_start < rmo_top &&
+ prom_initrd_end > alloc_bottom)
+ alloc_bottom = PAGE_ALIGN(prom_initrd_end);
prom_printf("memory layout at init:\n");
- prom_printf(" memory_limit : %x (16 MB aligned)\n", RELOC(prom_memory_limit));
- prom_printf(" alloc_bottom : %x\n", RELOC(alloc_bottom));
- prom_printf(" alloc_top : %x\n", RELOC(alloc_top));
- prom_printf(" alloc_top_hi : %x\n", RELOC(alloc_top_high));
- prom_printf(" rmo_top : %x\n", RELOC(rmo_top));
- prom_printf(" ram_top : %x\n", RELOC(ram_top));
+ prom_printf(" memory_limit : %x (16 MB aligned)\n", prom_memory_limit);
+ prom_printf(" alloc_bottom : %x\n", alloc_bottom);
+ prom_printf(" alloc_top : %x\n", alloc_top);
+ prom_printf(" alloc_top_hi : %x\n", alloc_top_high);
+ prom_printf(" rmo_top : %x\n", rmo_top);
+ prom_printf(" ram_top : %x\n", ram_top);
}
static void __init prom_close_stdin(void)
{
- struct prom_t *_prom = &RELOC(prom);
ihandle val;
- if (prom_getprop(_prom->chosen, "stdin", &val, sizeof(val)) > 0)
+ if (prom_getprop(prom.chosen, "stdin", &val, sizeof(val)) > 0)
call_prom("close", 1, 0, val);
}
@@ -1332,19 +1316,19 @@ static void __init prom_query_opal(void)
}
prom_printf("Querying for OPAL presence... ");
- rc = opal_query_takeover(&RELOC(prom_opal_size),
- &RELOC(prom_opal_align));
+ rc = opal_query_takeover(&prom_opal_size,
+ &prom_opal_align);
prom_debug("(rc = %ld) ", rc);
if (rc != 0) {
prom_printf("not there.\n");
return;
}
- RELOC(of_platform) = PLATFORM_OPAL;
+ of_platform = PLATFORM_OPAL;
prom_printf(" there !\n");
- prom_debug(" opal_size = 0x%lx\n", RELOC(prom_opal_size));
- prom_debug(" opal_align = 0x%lx\n", RELOC(prom_opal_align));
- if (RELOC(prom_opal_align) < 0x10000)
- RELOC(prom_opal_align) = 0x10000;
+ prom_debug(" opal_size = 0x%lx\n", prom_opal_size);
+ prom_debug(" opal_align = 0x%lx\n", prom_opal_align);
+ if (prom_opal_align < 0x10000)
+ prom_opal_align = 0x10000;
}
static int prom_rtas_call(int token, int nargs, int nret, int *outputs, ...)
@@ -1365,8 +1349,8 @@ static int prom_rtas_call(int token, int nargs, int nret, int *outputs, ...)
for (i = 0; i < nret; ++i)
rtas_args.rets[i] = 0;
- opal_enter_rtas(&rtas_args, RELOC(prom_rtas_data),
- RELOC(prom_rtas_entry));
+ opal_enter_rtas(&rtas_args, prom_rtas_data,
+ prom_rtas_entry);
if (nret > 1 && outputs != NULL)
for (i = 0; i < nret-1; ++i)
@@ -1381,9 +1365,8 @@ static void __init prom_opal_hold_cpus(void)
phandle node;
char type[64];
u32 servers[8];
- struct prom_t *_prom = &RELOC(prom);
- void *entry = (unsigned long *)&RELOC(opal_secondary_entry);
- struct opal_secondary_data *data = &RELOC(opal_secondary_data);
+ void *entry = (unsigned long *)&opal_secondary_entry;
+ struct opal_secondary_data *data = &opal_secondary_data;
prom_debug("prom_opal_hold_cpus: start...\n");
prom_debug(" - entry = 0x%x\n", entry);
@@ -1396,12 +1379,12 @@ static void __init prom_opal_hold_cpus(void)
for (node = 0; prom_next_node(&node); ) {
type[0] = 0;
prom_getprop(node, "device_type", type, sizeof(type));
- if (strcmp(type, RELOC("cpu")) != 0)
+ if (strcmp(type, "cpu") != 0)
continue;
/* Skip non-configured cpus. */
if (prom_getprop(node, "status", type, sizeof(type)) > 0)
- if (strcmp(type, RELOC("okay")) != 0)
+ if (strcmp(type, "okay") != 0)
continue;
cnt = prom_getprop(node, "ibm,ppc-interrupt-server#s", servers,
@@ -1412,7 +1395,7 @@ static void __init prom_opal_hold_cpus(void)
for (i = 0; i < cnt; i++) {
cpu = servers[i];
prom_debug("CPU %d ... ", cpu);
- if (cpu == _prom->cpu) {
+ if (cpu == prom.cpu) {
prom_debug("booted !\n");
continue;
}
@@ -1423,7 +1406,7 @@ static void __init prom_opal_hold_cpus(void)
* spinloop.
*/
data->ack = -1;
- rc = prom_rtas_call(RELOC(prom_rtas_start_cpu), 3, 1,
+ rc = prom_rtas_call(prom_rtas_start_cpu, 3, 1,
NULL, cpu, entry, data);
prom_debug("rtas rc=%d ...", rc);
@@ -1443,21 +1426,21 @@ static void __init prom_opal_hold_cpus(void)
static void __init prom_opal_takeover(void)
{
- struct opal_secondary_data *data = &RELOC(opal_secondary_data);
+ struct opal_secondary_data *data = &opal_secondary_data;
struct opal_takeover_args *args = &data->args;
- u64 align = RELOC(prom_opal_align);
+ u64 align = prom_opal_align;
u64 top_addr, opal_addr;
- args->k_image = (u64)RELOC(_stext);
+ args->k_image = (u64)_stext;
args->k_size = _end - _stext;
args->k_entry = 0;
args->k_entry2 = 0x60;
top_addr = _ALIGN_UP(args->k_size, align);
- if (RELOC(prom_initrd_start) != 0) {
- args->rd_image = RELOC(prom_initrd_start);
- args->rd_size = RELOC(prom_initrd_end) - args->rd_image;
+ if (prom_initrd_start != 0) {
+ args->rd_image = prom_initrd_start;
+ args->rd_size = prom_initrd_end - args->rd_image;
args->rd_loc = top_addr;
top_addr = _ALIGN_UP(args->rd_loc + args->rd_size, align);
}
@@ -1469,13 +1452,13 @@ static void __init prom_opal_takeover(void)
* has plenty of memory, and we ask for the HAL for now to
* be just below the 1G point, or above the initrd
*/
- opal_addr = _ALIGN_DOWN(0x40000000 - RELOC(prom_opal_size), align);
+ opal_addr = _ALIGN_DOWN(0x40000000 - prom_opal_size, align);
if (opal_addr < top_addr)
opal_addr = top_addr;
args->hal_addr = opal_addr;
/* Copy the command line to the kernel image */
- strlcpy(RELOC(boot_command_line), RELOC(prom_cmd_line),
+ strlcpy(boot_command_line, prom_cmd_line,
COMMAND_LINE_SIZE);
prom_debug(" k_image = 0x%lx\n", args->k_image);
@@ -1557,8 +1540,8 @@ static void __init prom_instantiate_opal(void)
&entry, sizeof(entry));
#ifdef CONFIG_PPC_EARLY_DEBUG_OPAL
- RELOC(prom_opal_base) = base;
- RELOC(prom_opal_entry) = entry;
+ prom_opal_base = base;
+ prom_opal_entry = entry;
#endif
prom_debug("prom_instantiate_opal: end...\n");
}
@@ -1616,9 +1599,9 @@ static void __init prom_instantiate_rtas(void)
#ifdef CONFIG_PPC_POWERNV
/* PowerVN takeover hack */
- RELOC(prom_rtas_data) = base;
- RELOC(prom_rtas_entry) = entry;
- prom_getprop(rtas_node, "start-cpu", &RELOC(prom_rtas_start_cpu), 4);
+ prom_rtas_data = base;
+ prom_rtas_entry = entry;
+ prom_getprop(rtas_node, "start-cpu", &prom_rtas_start_cpu, 4);
#endif
prom_debug("rtas base = 0x%x\n", base);
prom_debug("rtas entry = 0x%x\n", entry);
@@ -1693,20 +1676,20 @@ static void __init prom_initialize_tce_table(void)
phandle node;
ihandle phb_node;
char compatible[64], type[64], model[64];
- char *path = RELOC(prom_scratch);
+ char *path = prom_scratch;
u64 base, align;
u32 minalign, minsize;
u64 tce_entry, *tce_entryp;
u64 local_alloc_top, local_alloc_bottom;
u64 i;
- if (RELOC(prom_iommu_off))
+ if (prom_iommu_off)
return;
prom_debug("starting prom_initialize_tce_table\n");
/* Cache current top of allocs so we reserve a single block */
- local_alloc_top = RELOC(alloc_top_high);
+ local_alloc_top = alloc_top_high;
local_alloc_bottom = local_alloc_top;
/* Search all nodes looking for PHBs. */
@@ -1719,19 +1702,19 @@ static void __init prom_initialize_tce_table(void)
prom_getprop(node, "device_type", type, sizeof(type));
prom_getprop(node, "model", model, sizeof(model));
- if ((type[0] == 0) || (strstr(type, RELOC("pci")) == NULL))
+ if ((type[0] == 0) || (strstr(type, "pci") == NULL))
continue;
/* Keep the old logic intact to avoid regression. */
if (compatible[0] != 0) {
- if ((strstr(compatible, RELOC("python")) == NULL) &&
- (strstr(compatible, RELOC("Speedwagon")) == NULL) &&
- (strstr(compatible, RELOC("Winnipeg")) == NULL))
+ if ((strstr(compatible, "python") == NULL) &&
+ (strstr(compatible, "Speedwagon") == NULL) &&
+ (strstr(compatible, "Winnipeg") == NULL))
continue;
} else if (model[0] != 0) {
- if ((strstr(model, RELOC("ython")) == NULL) &&
- (strstr(model, RELOC("peedwagon")) == NULL) &&
- (strstr(model, RELOC("innipeg")) == NULL))
+ if ((strstr(model, "ython") == NULL) &&
+ (strstr(model, "peedwagon") == NULL) &&
+ (strstr(model, "innipeg") == NULL))
continue;
}
@@ -1810,8 +1793,8 @@ static void __init prom_initialize_tce_table(void)
/* These are only really needed if there is a memory limit in
* effect, but we don't know so export them always. */
- RELOC(prom_tce_alloc_start) = local_alloc_bottom;
- RELOC(prom_tce_alloc_end) = local_alloc_top;
+ prom_tce_alloc_start = local_alloc_bottom;
+ prom_tce_alloc_end = local_alloc_top;
/* Flag the first invalid entry */
prom_debug("ending prom_initialize_tce_table\n");
@@ -1848,7 +1831,6 @@ static void __init prom_hold_cpus(void)
unsigned int reg;
phandle node;
char type[64];
- struct prom_t *_prom = &RELOC(prom);
unsigned long *spinloop
= (void *) LOW_ADDR(__secondary_hold_spinloop);
unsigned long *acknowledge
@@ -1874,12 +1856,12 @@ static void __init prom_hold_cpus(void)
for (node = 0; prom_next_node(&node); ) {
type[0] = 0;
prom_getprop(node, "device_type", type, sizeof(type));
- if (strcmp(type, RELOC("cpu")) != 0)
+ if (strcmp(type, "cpu") != 0)
continue;
/* Skip non-configured cpus. */
if (prom_getprop(node, "status", type, sizeof(type)) > 0)
- if (strcmp(type, RELOC("okay")) != 0)
+ if (strcmp(type, "okay") != 0)
continue;
reg = -1;
@@ -1893,7 +1875,7 @@ static void __init prom_hold_cpus(void)
*/
*acknowledge = (unsigned long)-1;
- if (reg != _prom->cpu) {
+ if (reg != prom.cpu) {
/* Primary Thread of non-boot cpu or any thread */
prom_printf("starting cpu hw idx %lu... ", reg);
call_prom("start-cpu", 3, 0, node,
@@ -1920,22 +1902,20 @@ static void __init prom_hold_cpus(void)
static void __init prom_init_client_services(unsigned long pp)
{
- struct prom_t *_prom = &RELOC(prom);
-
/* Get a handle to the prom entry point before anything else */
- RELOC(prom_entry) = pp;
+ prom_entry = pp;
/* get a handle for the stdout device */
- _prom->chosen = call_prom("finddevice", 1, 1, ADDR("/chosen"));
- if (!PHANDLE_VALID(_prom->chosen))
+ prom.chosen = call_prom("finddevice", 1, 1, ADDR("/chosen"));
+ if (!PHANDLE_VALID(prom.chosen))
prom_panic("cannot find chosen"); /* msg won't be printed :( */
/* get device tree root */
- _prom->root = call_prom("finddevice", 1, 1, ADDR("/"));
- if (!PHANDLE_VALID(_prom->root))
+ prom.root = call_prom("finddevice", 1, 1, ADDR("/"));
+ if (!PHANDLE_VALID(prom.root))
prom_panic("cannot find device tree root"); /* msg won't be printed :( */
- _prom->mmumap = 0;
+ prom.mmumap = 0;
}
#ifdef CONFIG_PPC32
@@ -1946,7 +1926,6 @@ static void __init prom_init_client_services(unsigned long pp)
*/
static void __init prom_find_mmu(void)
{
- struct prom_t *_prom = &RELOC(prom);
phandle oprom;
char version[64];
@@ -1964,10 +1943,10 @@ static void __init prom_find_mmu(void)
call_prom("interpret", 1, 1, "dev /memory 0 to allow-reclaim");
} else
return;
- _prom->memory = call_prom("open", 1, 1, ADDR("/memory"));
- prom_getprop(_prom->chosen, "mmu", &_prom->mmumap,
- sizeof(_prom->mmumap));
- if (!IHANDLE_VALID(_prom->memory) || !IHANDLE_VALID(_prom->mmumap))
+ prom.memory = call_prom("open", 1, 1, ADDR("/memory"));
+ prom_getprop(prom.chosen, "mmu", &prom.mmumap,
+ sizeof(prom.mmumap));
+ if (!IHANDLE_VALID(prom.memory) || !IHANDLE_VALID(prom.mmumap))
of_workarounds &= ~OF_WA_CLAIM; /* hmmm */
}
#else
@@ -1976,36 +1955,34 @@ static void __init prom_find_mmu(void)
static void __init prom_init_stdout(void)
{
- struct prom_t *_prom = &RELOC(prom);
- char *path = RELOC(of_stdout_device);
+ char *path = of_stdout_device;
char type[16];
u32 val;
- if (prom_getprop(_prom->chosen, "stdout", &val, sizeof(val)) <= 0)
+ if (prom_getprop(prom.chosen, "stdout", &val, sizeof(val)) <= 0)
prom_panic("cannot find stdout");
- _prom->stdout = val;
+ prom.stdout = val;
/* Get the full OF pathname of the stdout device */
memset(path, 0, 256);
- call_prom("instance-to-path", 3, 1, _prom->stdout, path, 255);
- val = call_prom("instance-to-package", 1, 1, _prom->stdout);
- prom_setprop(_prom->chosen, "/chosen", "linux,stdout-package",
+ call_prom("instance-to-path", 3, 1, prom.stdout, path, 255);
+ val = call_prom("instance-to-package", 1, 1, prom.stdout);
+ prom_setprop(prom.chosen, "/chosen", "linux,stdout-package",
&val, sizeof(val));
- prom_printf("OF stdout device is: %s\n", RELOC(of_stdout_device));
- prom_setprop(_prom->chosen, "/chosen", "linux,stdout-path",
+ prom_printf("OF stdout device is: %s\n", of_stdout_device);
+ prom_setprop(prom.chosen, "/chosen", "linux,stdout-path",
path, strlen(path) + 1);
/* If it's a display, note it */
memset(type, 0, sizeof(type));
prom_getprop(val, "device_type", type, sizeof(type));
- if (strcmp(type, RELOC("display")) == 0)
+ if (strcmp(type, "display") == 0)
prom_setprop(val, path, "linux,boot-display", NULL, 0);
}
static int __init prom_find_machine_type(void)
{
- struct prom_t *_prom = &RELOC(prom);
char compat[256];
int len, i = 0;
#ifdef CONFIG_PPC64
@@ -2014,7 +1991,7 @@ static int __init prom_find_machine_type(void)
#endif
/* Look for a PowerMac or a Cell */
- len = prom_getprop(_prom->root, "compatible",
+ len = prom_getprop(prom.root, "compatible",
compat, sizeof(compat)-1);
if (len > 0) {
compat[len] = 0;
@@ -2023,16 +2000,16 @@ static int __init prom_find_machine_type(void)
int sl = strlen(p);
if (sl == 0)
break;
- if (strstr(p, RELOC("Power Macintosh")) ||
- strstr(p, RELOC("MacRISC")))
+ if (strstr(p, "Power Macintosh") ||
+ strstr(p, "MacRISC"))
return PLATFORM_POWERMAC;
#ifdef CONFIG_PPC64
/* We must make sure we don't detect the IBM Cell
* blades as pSeries due to some firmware issues,
* so we do it here.
*/
- if (strstr(p, RELOC("IBM,CBEA")) ||
- strstr(p, RELOC("IBM,CPBW-1.0")))
+ if (strstr(p, "IBM,CBEA") ||
+ strstr(p, "IBM,CPBW-1.0"))
return PLATFORM_GENERIC;
#endif /* CONFIG_PPC64 */
i += sl + 1;
@@ -2049,11 +2026,11 @@ static int __init prom_find_machine_type(void)
* non-IBM designs !
* - it has /rtas
*/
- len = prom_getprop(_prom->root, "device_type",
+ len = prom_getprop(prom.root, "device_type",
compat, sizeof(compat)-1);
if (len <= 0)
return PLATFORM_GENERIC;
- if (strcmp(compat, RELOC("chrp")))
+ if (strcmp(compat, "chrp"))
return PLATFORM_GENERIC;
/* Default to pSeries. We need to know if we are running LPAR */
@@ -2115,11 +2092,11 @@ static void __init prom_check_displays(void)
for (node = 0; prom_next_node(&node); ) {
memset(type, 0, sizeof(type));
prom_getprop(node, "device_type", type, sizeof(type));
- if (strcmp(type, RELOC("display")) != 0)
+ if (strcmp(type, "display") != 0)
continue;
/* It seems OF doesn't null-terminate the path :-( */
- path = RELOC(prom_scratch);
+ path = prom_scratch;
memset(path, 0, PROM_SCRATCH_SIZE);
/*
@@ -2143,15 +2120,15 @@ static void __init prom_check_displays(void)
/* Setup a usable color table when the appropriate
* method is available. Should update this to set-colors */
- clut = RELOC(default_colors);
+ clut = default_colors;
for (i = 0; i < 16; i++, clut += 3)
if (prom_set_color(ih, i, clut[0], clut[1],
clut[2]) != 0)
break;
#ifdef CONFIG_LOGO_LINUX_CLUT224
- clut = PTRRELOC(RELOC(logo_linux_clut224.clut));
- for (i = 0; i < RELOC(logo_linux_clut224.clutsize); i++, clut += 3)
+ clut = PTRRELOC(logo_linux_clut224.clut);
+ for (i = 0; i < logo_linux_clut224.clutsize; i++, clut += 3)
if (prom_set_color(ih, i + 32, clut[0], clut[1],
clut[2]) != 0)
break;
@@ -2171,8 +2148,8 @@ static void __init *make_room(unsigned long *mem_start, unsigned long *mem_end,
unsigned long room, chunk;
prom_debug("Chunk exhausted, claiming more at %x...\n",
- RELOC(alloc_bottom));
- room = RELOC(alloc_top) - RELOC(alloc_bottom);
+ alloc_bottom);
+ room = alloc_top - alloc_bottom;
if (room > DEVTREE_CHUNK_SIZE)
room = DEVTREE_CHUNK_SIZE;
if (room < PAGE_SIZE)
@@ -2198,9 +2175,9 @@ static unsigned long __init dt_find_string(char *str)
{
char *s, *os;
- s = os = (char *)RELOC(dt_string_start);
+ s = os = (char *)dt_string_start;
s += 4;
- while (s < (char *)RELOC(dt_string_end)) {
+ while (s < (char *)dt_string_end) {
if (strcmp(s, str) == 0)
return s - os;
s += strlen(s) + 1;
@@ -2222,10 +2199,10 @@ static void __init scan_dt_build_strings(phandle node,
unsigned long soff;
phandle child;
- sstart = (char *)RELOC(dt_string_start);
+ sstart = (char *)dt_string_start;
/* get and store all property names */
- prev_name = RELOC("");
+ prev_name = "";
for (;;) {
/* 64 is max len of name including nul. */
namep = make_room(mem_start, mem_end, MAX_PROPERTY_NAME, 1);
@@ -2236,9 +2213,9 @@ static void __init scan_dt_build_strings(phandle node,
}
/* skip "name" */
- if (strcmp(namep, RELOC("name")) == 0) {
+ if (strcmp(namep, "name") == 0) {
*mem_start = (unsigned long)namep;
- prev_name = RELOC("name");
+ prev_name = "name";
continue;
}
/* get/create string entry */
@@ -2249,7 +2226,7 @@ static void __init scan_dt_build_strings(phandle node,
} else {
/* Trim off some if we can */
*mem_start = (unsigned long)namep + strlen(namep) + 1;
- RELOC(dt_string_end) = *mem_start;
+ dt_string_end = *mem_start;
}
prev_name = namep;
}
@@ -2304,35 +2281,35 @@ static void __init scan_dt_build_struct(phandle node, unsigned long *mem_start,
}
/* get it again for debugging */
- path = RELOC(prom_scratch);
+ path = prom_scratch;
memset(path, 0, PROM_SCRATCH_SIZE);
call_prom("package-to-path", 3, 1, node, path, PROM_SCRATCH_SIZE-1);
/* get and store all properties */
- prev_name = RELOC("");
- sstart = (char *)RELOC(dt_string_start);
+ prev_name = "";
+ sstart = (char *)dt_string_start;
for (;;) {
if (call_prom("nextprop", 3, 1, node, prev_name,
- RELOC(pname)) != 1)
+ pname) != 1)
break;
/* skip "name" */
- if (strcmp(RELOC(pname), RELOC("name")) == 0) {
- prev_name = RELOC("name");
+ if (strcmp(pname, "name") == 0) {
+ prev_name = "name";
continue;
}
/* find string offset */
- soff = dt_find_string(RELOC(pname));
+ soff = dt_find_string(pname);
if (soff == 0) {
prom_printf("WARNING: Can't find string index for"
- " <%s>, node %s\n", RELOC(pname), path);
+ " <%s>, node %s\n", pname, path);
break;
}
prev_name = sstart + soff;
/* get length */
- l = call_prom("getproplen", 2, 1, node, RELOC(pname));
+ l = call_prom("getproplen", 2, 1, node, pname);
/* sanity checks */
if (l == PROM_ERROR)
@@ -2345,10 +2322,10 @@ static void __init scan_dt_build_struct(phandle node, unsigned long *mem_start,
/* push property content */
valp = make_room(mem_start, mem_end, l, 4);
- call_prom("getprop", 4, 1, node, RELOC(pname), valp, l);
+ call_prom("getprop", 4, 1, node, pname, valp, l);
*mem_start = _ALIGN(*mem_start, 4);
- if (!strcmp(RELOC(pname), RELOC("phandle")))
+ if (!strcmp(pname, "phandle"))
has_phandle = 1;
}
@@ -2356,7 +2333,7 @@ static void __init scan_dt_build_struct(phandle node, unsigned long *mem_start,
* existed (can happen with OPAL)
*/
if (!has_phandle) {
- soff = dt_find_string(RELOC("linux,phandle"));
+ soff = dt_find_string("linux,phandle");
if (soff == 0)
prom_printf("WARNING: Can't find string index for"
" <linux-phandle> node %s\n", path);
@@ -2384,7 +2361,6 @@ static void __init flatten_device_tree(void)
phandle root;
unsigned long mem_start, mem_end, room;
struct boot_param_header *hdr;
- struct prom_t *_prom = &RELOC(prom);
char *namep;
u64 *rsvmap;
@@ -2392,10 +2368,10 @@ static void __init flatten_device_tree(void)
* Check how much room we have between alloc top & bottom (+/- a
* few pages), crop to 1MB, as this is our "chunk" size
*/
- room = RELOC(alloc_top) - RELOC(alloc_bottom) - 0x4000;
+ room = alloc_top - alloc_bottom - 0x4000;
if (room > DEVTREE_CHUNK_SIZE)
room = DEVTREE_CHUNK_SIZE;
- prom_debug("starting device tree allocs at %x\n", RELOC(alloc_bottom));
+ prom_debug("starting device tree allocs at %x\n", alloc_bottom);
/* Now try to claim that */
mem_start = (unsigned long)alloc_up(room, PAGE_SIZE);
@@ -2412,66 +2388,66 @@ static void __init flatten_device_tree(void)
mem_start = _ALIGN(mem_start, 4);
hdr = make_room(&mem_start, &mem_end,
sizeof(struct boot_param_header), 4);
- RELOC(dt_header_start) = (unsigned long)hdr;
+ dt_header_start = (unsigned long)hdr;
rsvmap = make_room(&mem_start, &mem_end, sizeof(mem_reserve_map), 8);
/* Start of strings */
mem_start = PAGE_ALIGN(mem_start);
- RELOC(dt_string_start) = mem_start;
+ dt_string_start = mem_start;
mem_start += 4; /* hole */
/* Add "linux,phandle" in there, we'll need it */
namep = make_room(&mem_start, &mem_end, 16, 1);
- strcpy(namep, RELOC("linux,phandle"));
+ strcpy(namep, "linux,phandle");
mem_start = (unsigned long)namep + strlen(namep) + 1;
/* Build string array */
prom_printf("Building dt strings...\n");
scan_dt_build_strings(root, &mem_start, &mem_end);
- RELOC(dt_string_end) = mem_start;
+ dt_string_end = mem_start;
/* Build structure */
mem_start = PAGE_ALIGN(mem_start);
- RELOC(dt_struct_start) = mem_start;
+ dt_struct_start = mem_start;
prom_printf("Building dt structure...\n");
scan_dt_build_struct(root, &mem_start, &mem_end);
dt_push_token(OF_DT_END, &mem_start, &mem_end);
- RELOC(dt_struct_end) = PAGE_ALIGN(mem_start);
+ dt_struct_end = PAGE_ALIGN(mem_start);
/* Finish header */
- hdr->boot_cpuid_phys = _prom->cpu;
+ hdr->boot_cpuid_phys = prom.cpu;
hdr->magic = OF_DT_HEADER;
- hdr->totalsize = RELOC(dt_struct_end) - RELOC(dt_header_start);
- hdr->off_dt_struct = RELOC(dt_struct_start) - RELOC(dt_header_start);
- hdr->off_dt_strings = RELOC(dt_string_start) - RELOC(dt_header_start);
- hdr->dt_strings_size = RELOC(dt_string_end) - RELOC(dt_string_start);
- hdr->off_mem_rsvmap = ((unsigned long)rsvmap) - RELOC(dt_header_start);
+ hdr->totalsize = dt_struct_end - dt_header_start;
+ hdr->off_dt_struct = dt_struct_start - dt_header_start;
+ hdr->off_dt_strings = dt_string_start - dt_header_start;
+ hdr->dt_strings_size = dt_string_end - dt_string_start;
+ hdr->off_mem_rsvmap = ((unsigned long)rsvmap) - dt_header_start;
hdr->version = OF_DT_VERSION;
/* Version 16 is not backward compatible */
hdr->last_comp_version = 0x10;
/* Copy the reserve map in */
- memcpy(rsvmap, RELOC(mem_reserve_map), sizeof(mem_reserve_map));
+ memcpy(rsvmap, mem_reserve_map, sizeof(mem_reserve_map));
#ifdef DEBUG_PROM
{
int i;
prom_printf("reserved memory map:\n");
- for (i = 0; i < RELOC(mem_reserve_cnt); i++)
+ for (i = 0; i < mem_reserve_cnt; i++)
prom_printf(" %x - %x\n",
- RELOC(mem_reserve_map)[i].base,
- RELOC(mem_reserve_map)[i].size);
+ mem_reserve_map[i].base,
+ mem_reserve_map[i].size);
}
#endif
/* Bump mem_reserve_cnt to cause further reservations to fail
* since it's too late.
*/
- RELOC(mem_reserve_cnt) = MEM_RESERVE_MAP_SIZE;
+ mem_reserve_cnt = MEM_RESERVE_MAP_SIZE;
prom_printf("Device tree strings 0x%x -> 0x%x\n",
- RELOC(dt_string_start), RELOC(dt_string_end));
+ dt_string_start, dt_string_end);
prom_printf("Device tree struct 0x%x -> 0x%x\n",
- RELOC(dt_struct_start), RELOC(dt_struct_end));
+ dt_struct_start, dt_struct_end);
}
@@ -2526,7 +2502,6 @@ static void __init fixup_device_tree_maple_memory_controller(void)
phandle mc;
u32 mc_reg[4];
char *name = "/hostbridge@f8000000";
- struct prom_t *_prom = &RELOC(prom);
u32 ac, sc;
mc = call_prom("finddevice", 1, 1, ADDR(name));
@@ -2536,8 +2511,8 @@ static void __init fixup_device_tree_maple_memory_controller(void)
if (prom_getproplen(mc, "reg") != 8)
return;
- prom_getprop(_prom->root, "#address-cells", &ac, sizeof(ac));
- prom_getprop(_prom->root, "#size-cells", &sc, sizeof(sc));
+ prom_getprop(prom.root, "#address-cells", &ac, sizeof(ac));
+ prom_getprop(prom.root, "#size-cells", &sc, sizeof(sc));
if ((ac != 2) || (sc != 2))
return;
@@ -2806,50 +2781,94 @@ static void __init fixup_device_tree(void)
static void __init prom_find_boot_cpu(void)
{
- struct prom_t *_prom = &RELOC(prom);
u32 getprop_rval;
ihandle prom_cpu;
phandle cpu_pkg;
- _prom->cpu = 0;
- if (prom_getprop(_prom->chosen, "cpu", &prom_cpu, sizeof(prom_cpu)) <= 0)
+ prom.cpu = 0;
+ if (prom_getprop(prom.chosen, "cpu", &prom_cpu, sizeof(prom_cpu)) <= 0)
return;
cpu_pkg = call_prom("instance-to-package", 1, 1, prom_cpu);
prom_getprop(cpu_pkg, "reg", &getprop_rval, sizeof(getprop_rval));
- _prom->cpu = getprop_rval;
+ prom.cpu = getprop_rval;
- prom_debug("Booting CPU hw index = %lu\n", _prom->cpu);
+ prom_debug("Booting CPU hw index = %lu\n", prom.cpu);
}
static void __init prom_check_initrd(unsigned long r3, unsigned long r4)
{
#ifdef CONFIG_BLK_DEV_INITRD
- struct prom_t *_prom = &RELOC(prom);
-
if (r3 && r4 && r4 != 0xdeadbeef) {
unsigned long val;
- RELOC(prom_initrd_start) = is_kernel_addr(r3) ? __pa(r3) : r3;
- RELOC(prom_initrd_end) = RELOC(prom_initrd_start) + r4;
+ prom_initrd_start = is_kernel_addr(r3) ? __pa(r3) : r3;
+ prom_initrd_end = prom_initrd_start + r4;
- val = RELOC(prom_initrd_start);
- prom_setprop(_prom->chosen, "/chosen", "linux,initrd-start",
+ val = prom_initrd_start;
+ prom_setprop(prom.chosen, "/chosen", "linux,initrd-start",
&val, sizeof(val));
- val = RELOC(prom_initrd_end);
- prom_setprop(_prom->chosen, "/chosen", "linux,initrd-end",
+ val = prom_initrd_end;
+ prom_setprop(prom.chosen, "/chosen", "linux,initrd-end",
&val, sizeof(val));
- reserve_mem(RELOC(prom_initrd_start),
- RELOC(prom_initrd_end) - RELOC(prom_initrd_start));
+ reserve_mem(prom_initrd_start,
+ prom_initrd_end - prom_initrd_start);
- prom_debug("initrd_start=0x%x\n", RELOC(prom_initrd_start));
- prom_debug("initrd_end=0x%x\n", RELOC(prom_initrd_end));
+ prom_debug("initrd_start=0x%x\n", prom_initrd_start);
+ prom_debug("initrd_end=0x%x\n", prom_initrd_end);
}
#endif /* CONFIG_BLK_DEV_INITRD */
}
+#ifdef CONFIG_PPC64
+#ifdef CONFIG_RELOCATABLE
+static void reloc_toc(void)
+{
+}
+
+static void unreloc_toc(void)
+{
+}
+#else
+static void __reloc_toc(void *tocstart, unsigned long offset,
+ unsigned long nr_entries)
+{
+ unsigned long i;
+ unsigned long *toc_entry = (unsigned long *)tocstart;
+
+ for (i = 0; i < nr_entries; i++) {
+ *toc_entry = *toc_entry + offset;
+ toc_entry++;
+ }
+}
+
+static void reloc_toc(void)
+{
+ unsigned long offset = reloc_offset();
+ unsigned long nr_entries =
+ (__prom_init_toc_end - __prom_init_toc_start) / sizeof(long);
+
+ /* Need to add offset to get at __prom_init_toc_start */
+ __reloc_toc(__prom_init_toc_start + offset, offset, nr_entries);
+
+ mb();
+}
+
+static void unreloc_toc(void)
+{
+ unsigned long offset = reloc_offset();
+ unsigned long nr_entries =
+ (__prom_init_toc_end - __prom_init_toc_start) / sizeof(long);
+
+ mb();
+
+ /* __prom_init_toc_start has been relocated, no need to add offset */
+ __reloc_toc(__prom_init_toc_start, -offset, nr_entries);
+}
+#endif
+#endif
/*
* We enter here early on, when the Open Firmware prom is still
@@ -2861,20 +2880,19 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4,
unsigned long r6, unsigned long r7,
unsigned long kbase)
{
- struct prom_t *_prom;
unsigned long hdr;
#ifdef CONFIG_PPC32
unsigned long offset = reloc_offset();
reloc_got2(offset);
+#else
+ reloc_toc();
#endif
- _prom = &RELOC(prom);
-
/*
* First zero the BSS
*/
- memset(&RELOC(__bss_start), 0, __bss_stop - __bss_start);
+ memset(&__bss_start, 0, __bss_stop - __bss_start);
/*
* Init interface to Open Firmware, get some node references,
@@ -2893,14 +2911,14 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4,
*/
prom_init_stdout();
- prom_printf("Preparing to boot %s", RELOC(linux_banner));
+ prom_printf("Preparing to boot %s", linux_banner);
/*
* Get default machine type. At this point, we do not differentiate
* between pSeries SMP and pSeries LPAR
*/
- RELOC(of_platform) = prom_find_machine_type();
- prom_printf("Detected machine type: %x\n", RELOC(of_platform));
+ of_platform = prom_find_machine_type();
+ prom_printf("Detected machine type: %x\n", of_platform);
#ifndef CONFIG_NONSTATIC_KERNEL
/* Bail if this is a kdump kernel. */
@@ -2917,15 +2935,15 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4,
/*
* On pSeries, inform the firmware about our capabilities
*/
- if (RELOC(of_platform) == PLATFORM_PSERIES ||
- RELOC(of_platform) == PLATFORM_PSERIES_LPAR)
+ if (of_platform == PLATFORM_PSERIES ||
+ of_platform == PLATFORM_PSERIES_LPAR)
prom_send_capabilities();
#endif
/*
* Copy the CPU hold code
*/
- if (RELOC(of_platform) != PLATFORM_POWERMAC)
+ if (of_platform != PLATFORM_POWERMAC)
copy_and_flush(0, kbase, 0x100, 0);
/*
@@ -2954,7 +2972,7 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4,
* that uses the allocator, we need to make sure we get the top of memory
* available for us here...
*/
- if (RELOC(of_platform) == PLATFORM_PSERIES)
+ if (of_platform == PLATFORM_PSERIES)
prom_initialize_tce_table();
#endif
@@ -2962,19 +2980,19 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4,
* On non-powermacs, try to instantiate RTAS. PowerMacs don't
* have a usable RTAS implementation.
*/
- if (RELOC(of_platform) != PLATFORM_POWERMAC &&
- RELOC(of_platform) != PLATFORM_OPAL)
+ if (of_platform != PLATFORM_POWERMAC &&
+ of_platform != PLATFORM_OPAL)
prom_instantiate_rtas();
#ifdef CONFIG_PPC_POWERNV
/* Detect HAL and try instanciating it & doing takeover */
- if (RELOC(of_platform) == PLATFORM_PSERIES_LPAR) {
+ if (of_platform == PLATFORM_PSERIES_LPAR) {
prom_query_opal();
- if (RELOC(of_platform) == PLATFORM_OPAL) {
+ if (of_platform == PLATFORM_OPAL) {
prom_opal_hold_cpus();
prom_opal_takeover();
}
- } else if (RELOC(of_platform) == PLATFORM_OPAL)
+ } else if (of_platform == PLATFORM_OPAL)
prom_instantiate_opal();
#endif
@@ -2988,32 +3006,32 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4,
*
* PowerMacs use a different mechanism to spin CPUs
*/
- if (RELOC(of_platform) != PLATFORM_POWERMAC &&
- RELOC(of_platform) != PLATFORM_OPAL)
+ if (of_platform != PLATFORM_POWERMAC &&
+ of_platform != PLATFORM_OPAL)
prom_hold_cpus();
/*
* Fill in some infos for use by the kernel later on
*/
- if (RELOC(prom_memory_limit))
- prom_setprop(_prom->chosen, "/chosen", "linux,memory-limit",
- &RELOC(prom_memory_limit),
+ if (prom_memory_limit)
+ prom_setprop(prom.chosen, "/chosen", "linux,memory-limit",
+ &prom_memory_limit,
sizeof(prom_memory_limit));
#ifdef CONFIG_PPC64
- if (RELOC(prom_iommu_off))
- prom_setprop(_prom->chosen, "/chosen", "linux,iommu-off",
+ if (prom_iommu_off)
+ prom_setprop(prom.chosen, "/chosen", "linux,iommu-off",
NULL, 0);
- if (RELOC(prom_iommu_force_on))
- prom_setprop(_prom->chosen, "/chosen", "linux,iommu-force-on",
+ if (prom_iommu_force_on)
+ prom_setprop(prom.chosen, "/chosen", "linux,iommu-force-on",
NULL, 0);
- if (RELOC(prom_tce_alloc_start)) {
- prom_setprop(_prom->chosen, "/chosen", "linux,tce-alloc-start",
- &RELOC(prom_tce_alloc_start),
+ if (prom_tce_alloc_start) {
+ prom_setprop(prom.chosen, "/chosen", "linux,tce-alloc-start",
+ &prom_tce_alloc_start,
sizeof(prom_tce_alloc_start));
- prom_setprop(_prom->chosen, "/chosen", "linux,tce-alloc-end",
- &RELOC(prom_tce_alloc_end),
+ prom_setprop(prom.chosen, "/chosen", "linux,tce-alloc-end",
+ &prom_tce_alloc_end,
sizeof(prom_tce_alloc_end));
}
#endif
@@ -3035,8 +3053,8 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4,
* closed stdin already (in particular the powerbook 101). It
* appears that the OPAL version of OFW doesn't like it either.
*/
- if (RELOC(of_platform) != PLATFORM_POWERMAC &&
- RELOC(of_platform) != PLATFORM_OPAL)
+ if (of_platform != PLATFORM_POWERMAC &&
+ of_platform != PLATFORM_OPAL)
prom_close_stdin();
/*
@@ -3051,22 +3069,24 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4,
* tree and NULL as r5, thus triggering the new entry point which
* is common to us and kexec
*/
- hdr = RELOC(dt_header_start);
+ hdr = dt_header_start;
/* Don't print anything after quiesce under OPAL, it crashes OFW */
- if (RELOC(of_platform) != PLATFORM_OPAL) {
+ if (of_platform != PLATFORM_OPAL) {
prom_printf("returning from prom_init\n");
prom_debug("->dt_header_start=0x%x\n", hdr);
}
#ifdef CONFIG_PPC32
reloc_got2(-offset);
+#else
+ unreloc_toc();
#endif
#ifdef CONFIG_PPC_EARLY_DEBUG_OPAL
/* OPAL early debug gets the OPAL base & entry in r8 and r9 */
__start(hdr, kbase, 0, 0, 0,
- RELOC(prom_opal_base), RELOC(prom_opal_entry));
+ prom_opal_base, prom_opal_entry);
#else
__start(hdr, kbase, 0, 0, 0, 0, 0);
#endif
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-27 04:46:35 +0000