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-rw-r--r--arch/powerpc/Kconfig13
-rw-r--r--arch/powerpc/kernel/Makefile1
-rw-r--r--arch/powerpc/kernel/asm-offsets.c6
-rw-r--r--arch/powerpc/kernel/entry_32.S12
-rw-r--r--arch/powerpc/kernel/prom.c3
-rw-r--r--arch/powerpc/kernel/rtas.c (renamed from arch/ppc64/kernel/rtas.c)255
-rw-r--r--arch/powerpc/platforms/pseries/Kconfig5
-rw-r--r--arch/powerpc/platforms/pseries/Makefile2
-rw-r--r--arch/powerpc/platforms/pseries/rtas-fw.c138
-rw-r--r--arch/powerpc/platforms/pseries/rtas-fw.h3
-rw-r--r--arch/powerpc/platforms/pseries/setup.c10
-rw-r--r--arch/ppc64/Kconfig5
-rw-r--r--arch/ppc64/kernel/Makefile2
13 files changed, 256 insertions, 199 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 9f279e0d84f..ce5100cadd3 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -276,6 +276,8 @@ config PPC_PSERIES
depends on PPC_MULTIPLATFORM && PPC64
bool " IBM pSeries & new (POWER5-based) iSeries"
select PPC_I8259
+ select PPC_RTAS
+ select RTAS_ERROR_LOGGING
default y
config PPC_CHRP
@@ -283,6 +285,7 @@ config PPC_CHRP
depends on PPC_MULTIPLATFORM && PPC32
select PPC_I8259
select PPC_INDIRECT_PCI
+ select PPC_RTAS
default y
config PPC_PMAC
@@ -317,6 +320,7 @@ config PPC_MAPLE
config PPC_BPA
bool " Broadband Processor Architecture"
depends on PPC_MULTIPLATFORM && PPC64
+ select PPC_RTAS
config PPC_OF
bool
@@ -338,6 +342,15 @@ config MPIC
bool
default y
+config PPC_RTAS
+ bool
+ default n
+
+config RTAS_ERROR_LOGGING
+ bool
+ depends on PPC_RTAS
+ default n
+
config MPIC_BROKEN_U3
bool
depends on PPC_MAPLE
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index f5d8038fed5..eaedb7e6331 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -16,6 +16,7 @@ obj-$(CONFIG_PPC64) += binfmt_elf32.o sys_ppc32.o ptrace32.o
obj-$(CONFIG_ALTIVEC) += vecemu.o vector.o
obj-$(CONFIG_POWER4) += idle_power4.o
obj-$(CONFIG_PPC_OF) += of_device.o
+obj-$(CONFIG_PPC_RTAS) += rtas.o
obj-$(CONFIG_IBMVIO) += vio.o
ifeq ($(CONFIG_PPC_MERGE),y)
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index 1c83abd9f37..710336a9f0f 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -36,11 +36,11 @@
#include <asm/processor.h>
#include <asm/cputable.h>
#include <asm/thread_info.h>
+#include <asm/rtas.h>
#ifdef CONFIG_PPC64
#include <asm/paca.h>
#include <asm/lppaca.h>
#include <asm/iSeries/HvLpEvent.h>
-#include <asm/rtas.h>
#include <asm/cache.h>
#include <asm/systemcfg.h>
#include <asm/compat.h>
@@ -97,7 +97,7 @@ int main(void)
DEFINE(TI_TASK, offsetof(struct thread_info, task));
DEFINE(TI_EXECDOMAIN, offsetof(struct thread_info, exec_domain));
DEFINE(TI_CPU, offsetof(struct thread_info, cpu));
-#endif /* CONFIG_PPC64 */
+#endif /* CONFIG_PPC32 */
#ifdef CONFIG_PPC64
DEFINE(DCACHEL1LINESIZE, offsetof(struct ppc64_caches, dline_size));
@@ -142,11 +142,11 @@ int main(void)
DEFINE(LPPACASRR1, offsetof(struct lppaca, saved_srr1));
DEFINE(LPPACAANYINT, offsetof(struct lppaca, int_dword.any_int));
DEFINE(LPPACADECRINT, offsetof(struct lppaca, int_dword.fields.decr_int));
+#endif /* CONFIG_PPC64 */
/* RTAS */
DEFINE(RTASBASE, offsetof(struct rtas_t, base));
DEFINE(RTASENTRY, offsetof(struct rtas_t, entry));
-#endif /* CONFIG_PPC64 */
/* Interrupt register frame */
DEFINE(STACK_FRAME_OVERHEAD, STACK_FRAME_OVERHEAD);
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S
index 37b4396ca97..960da7bea04 100644
--- a/arch/powerpc/kernel/entry_32.S
+++ b/arch/powerpc/kernel/entry_32.S
@@ -954,7 +954,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_601)
* here so it's easy to add arch-specific sections later.
* -- Cort
*/
-#ifdef CONFIG_PPC_OF
+#ifdef CONFIG_PPC_RTAS
/*
* On CHRP, the Run-Time Abstraction Services (RTAS) have to be
* called with the MMU off.
@@ -963,14 +963,13 @@ _GLOBAL(enter_rtas)
stwu r1,-INT_FRAME_SIZE(r1)
mflr r0
stw r0,INT_FRAME_SIZE+4(r1)
- lis r4,rtas_data@ha
- lwz r4,rtas_data@l(r4)
+ LOADADDR(r4, rtas)
lis r6,1f@ha /* physical return address for rtas */
addi r6,r6,1f@l
tophys(r6,r6)
tophys(r7,r1)
- lis r8,rtas_entry@ha
- lwz r8,rtas_entry@l(r8)
+ lwz r8,RTASENTRY(r4)
+ lwz r4,RTASBASE(r4)
mfmsr r9
stw r9,8(r1)
LOAD_MSR_KERNEL(r0,MSR_KERNEL)
@@ -978,7 +977,6 @@ _GLOBAL(enter_rtas)
MTMSRD(r0) /* don't get trashed */
li r9,MSR_KERNEL & ~(MSR_IR|MSR_DR)
mtlr r6
- CLR_TOP32(r7)
mtspr SPRN_SPRG2,r7
mtspr SPRN_SRR0,r8
mtspr SPRN_SRR1,r9
@@ -999,4 +997,4 @@ machine_check_in_rtas:
twi 31,0,0
/* XXX load up BATs and panic */
-#endif /* CONFIG_PPC_OF */
+#endif /* CONFIG_PPC_RTAS */
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 8d0c78cbc0b..16ac15e73b4 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -110,9 +110,6 @@ struct device_node *of_chosen;
struct device_node *dflt_interrupt_controller;
int num_interrupt_controllers;
-u32 rtas_data;
-u32 rtas_entry;
-
/*
* Wrapper for allocating memory for various data that needs to be
* attached to device nodes as they are processed at boot or when
diff --git a/arch/ppc64/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index 36adab591bd..4d22eeeeb91 100644
--- a/arch/ppc64/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -25,29 +25,29 @@
#include <asm/page.h>
#include <asm/param.h>
#include <asm/system.h>
-#include <asm/abs_addr.h>
-#include <asm/udbg.h>
#include <asm/delay.h>
#include <asm/uaccess.h>
+#include <asm/lmb.h>
+#ifdef CONFIG_PPC64
#include <asm/systemcfg.h>
-#include <asm/ppcdebug.h>
+#endif
-struct flash_block_list_header rtas_firmware_flash_list = {0, NULL};
-
-struct rtas_t rtas = {
+struct rtas_t rtas = {
.lock = SPIN_LOCK_UNLOCKED
};
EXPORT_SYMBOL(rtas);
-char rtas_err_buf[RTAS_ERROR_LOG_MAX];
-
DEFINE_SPINLOCK(rtas_data_buf_lock);
-char rtas_data_buf[RTAS_DATA_BUF_SIZE]__page_aligned;
+char rtas_data_buf[RTAS_DATA_BUF_SIZE] __cacheline_aligned;
unsigned long rtas_rmo_buf;
-void
-call_rtas_display_status(unsigned char c)
+/*
+ * call_rtas_display_status and call_rtas_display_status_delay
+ * are designed only for very early low-level debugging, which
+ * is why the token is hard-coded to 10.
+ */
+void call_rtas_display_status(unsigned char c)
{
struct rtas_args *args = &rtas.args;
unsigned long s;
@@ -67,8 +67,7 @@ call_rtas_display_status(unsigned char c)
spin_unlock_irqrestore(&rtas.lock, s);
}
-void
-call_rtas_display_status_delay(unsigned char c)
+void call_rtas_display_status_delay(unsigned char c)
{
static int pending_newline = 0; /* did last write end with unprinted newline? */
static int width = 16;
@@ -92,8 +91,7 @@ call_rtas_display_status_delay(unsigned char c)
}
}
-void
-rtas_progress(char *s, unsigned short hex)
+void rtas_progress(char *s, unsigned short hex)
{
struct device_node *root;
int width, *p;
@@ -209,18 +207,16 @@ rtas_progress(char *s, unsigned short hex)
spin_unlock(&progress_lock);
}
-int
-rtas_token(const char *service)
+int rtas_token(const char *service)
{
int *tokp;
- if (rtas.dev == NULL) {
- PPCDBG(PPCDBG_RTAS,"\tNo rtas device in device-tree...\n");
+ if (rtas.dev == NULL)
return RTAS_UNKNOWN_SERVICE;
- }
tokp = (int *) get_property(rtas.dev, service, NULL);
return tokp ? *tokp : RTAS_UNKNOWN_SERVICE;
}
+#ifdef CONFIG_RTAS_ERROR_LOGGING
/*
* Return the firmware-specified size of the error log buffer
* for all rtas calls that require an error buffer argument.
@@ -235,31 +231,38 @@ int rtas_get_error_log_max(void)
rtas_error_log_max = rtas_token ("rtas-error-log-max");
if ((rtas_error_log_max == RTAS_UNKNOWN_SERVICE) ||
(rtas_error_log_max > RTAS_ERROR_LOG_MAX)) {
- printk (KERN_WARNING "RTAS: bad log buffer size %d\n", rtas_error_log_max);
+ printk (KERN_WARNING "RTAS: bad log buffer size %d\n",
+ rtas_error_log_max);
rtas_error_log_max = RTAS_ERROR_LOG_MAX;
}
return rtas_error_log_max;
}
+EXPORT_SYMBOL(rtas_get_error_log_max);
+char rtas_err_buf[RTAS_ERROR_LOG_MAX];
+int rtas_last_error_token;
+
/** Return a copy of the detailed error text associated with the
* most recent failed call to rtas. Because the error text
* might go stale if there are any other intervening rtas calls,
* this routine must be called atomically with whatever produced
* the error (i.e. with rtas.lock still held from the previous call).
*/
-static int
-__fetch_rtas_last_error(void)
+static char *__fetch_rtas_last_error(char *altbuf)
{
struct rtas_args err_args, save_args;
u32 bufsz;
+ char *buf = NULL;
+
+ if (rtas_last_error_token == -1)
+ return NULL;
bufsz = rtas_get_error_log_max();
- err_args.token = rtas_token("rtas-last-error");
+ err_args.token = rtas_last_error_token;
err_args.nargs = 2;
err_args.nret = 1;
-
err_args.args[0] = (rtas_arg_t)__pa(rtas_err_buf);
err_args.args[1] = bufsz;
err_args.args[2] = 0;
@@ -272,23 +275,38 @@ __fetch_rtas_last_error(void)
err_args = rtas.args;
rtas.args = save_args;
- return err_args.args[2];
+ /* Log the error in the unlikely case that there was one. */
+ if (unlikely(err_args.args[2] == 0)) {
+ if (altbuf) {
+ buf = altbuf;
+ } else {
+ buf = rtas_err_buf;
+ if (mem_init_done)
+ buf = kmalloc(RTAS_ERROR_LOG_MAX, GFP_ATOMIC);
+ }
+ if (buf)
+ memcpy(buf, rtas_err_buf, RTAS_ERROR_LOG_MAX);
+ }
+
+ return buf;
}
+#define get_errorlog_buffer() kmalloc(RTAS_ERROR_LOG_MAX, GFP_KERNEL)
+
+#else /* CONFIG_RTAS_ERROR_LOGGING */
+#define __fetch_rtas_last_error(x) NULL
+#define get_errorlog_buffer() NULL
+#endif
+
int rtas_call(int token, int nargs, int nret, int *outputs, ...)
{
va_list list;
- int i, logit = 0;
+ int i;
unsigned long s;
struct rtas_args *rtas_args;
- char * buff_copy = NULL;
+ char *buff_copy = NULL;
int ret;
- PPCDBG(PPCDBG_RTAS, "Entering rtas_call\n");
- PPCDBG(PPCDBG_RTAS, "\ttoken = 0x%x\n", token);
- PPCDBG(PPCDBG_RTAS, "\tnargs = %d\n", nargs);
- PPCDBG(PPCDBG_RTAS, "\tnret = %d\n", nret);
- PPCDBG(PPCDBG_RTAS, "\t&outputs = 0x%lx\n", outputs);
if (token == RTAS_UNKNOWN_SERVICE)
return -1;
@@ -301,46 +319,25 @@ int rtas_call(int token, int nargs, int nret, int *outputs, ...)
rtas_args->nret = nret;
rtas_args->rets = (rtas_arg_t *)&(rtas_args->args[nargs]);
va_start(list, outputs);
- for (i = 0; i < nargs; ++i) {
+ for (i = 0; i < nargs; ++i)
rtas_args->args[i] = va_arg(list, rtas_arg_t);
- PPCDBG(PPCDBG_RTAS, "\tnarg[%d] = 0x%x\n", i, rtas_args->args[i]);
- }
va_end(list);
for (i = 0; i < nret; ++i)
rtas_args->rets[i] = 0;
- PPCDBG(PPCDBG_RTAS, "\tentering rtas with 0x%lx\n",
- __pa(rtas_args));
enter_rtas(__pa(rtas_args));
- PPCDBG(PPCDBG_RTAS, "\treturned from rtas ...\n");
/* A -1 return code indicates that the last command couldn't
be completed due to a hardware error. */
if (rtas_args->rets[0] == -1)
- logit = (__fetch_rtas_last_error() == 0);
-
- ifppcdebug(PPCDBG_RTAS) {
- for(i=0; i < nret ;i++)
- udbg_printf("\tnret[%d] = 0x%lx\n", i, (ulong)rtas_args->rets[i]);
- }
+ buff_copy = __fetch_rtas_last_error(NULL);
if (nret > 1 && outputs != NULL)
for (i = 0; i < nret-1; ++i)
outputs[i] = rtas_args->rets[i+1];
ret = (nret > 0)? rtas_args->rets[0]: 0;
- /* Log the error in the unlikely case that there was one. */
- if (unlikely(logit)) {
- buff_copy = rtas_err_buf;
- if (mem_init_done) {
- buff_copy = kmalloc(RTAS_ERROR_LOG_MAX, GFP_ATOMIC);
- if (buff_copy)
- memcpy(buff_copy, rtas_err_buf,
- RTAS_ERROR_LOG_MAX);
- }
- }
-
/* Gotta do something different here, use global lock for now... */
spin_unlock_irqrestore(&rtas.lock, s);
@@ -355,8 +352,7 @@ int rtas_call(int token, int nargs, int nret, int *outputs, ...)
/* Given an RTAS status code of 990n compute the hinted delay of 10^n
* (last digit) milliseconds. For now we bound at n=5 (100 sec).
*/
-unsigned int
-rtas_extended_busy_delay_time(int status)
+unsigned int rtas_extended_busy_delay_time(int status)
{
int order = status - 9900;
unsigned long ms;
@@ -367,7 +363,7 @@ rtas_extended_busy_delay_time(int status)
order = 5; /* bound */
/* Use microseconds for reasonable accuracy */
- for (ms=1; order > 0; order--)
+ for (ms = 1; order > 0; order--)
ms *= 10;
return ms;
@@ -494,112 +490,23 @@ int rtas_set_indicator(int indicator, int index, int new_value)
return rc;
}
-#define FLASH_BLOCK_LIST_VERSION (1UL)
-static void
-rtas_flash_firmware(void)
-{
- unsigned long image_size;
- struct flash_block_list *f, *next, *flist;
- unsigned long rtas_block_list;
- int i, status, update_token;
-
- update_token = rtas_token("ibm,update-flash-64-and-reboot");
- if (update_token == RTAS_UNKNOWN_SERVICE) {
- printk(KERN_ALERT "FLASH: ibm,update-flash-64-and-reboot is not available -- not a service partition?\n");
- printk(KERN_ALERT "FLASH: firmware will not be flashed\n");
- return;
- }
-
- /* NOTE: the "first" block list is a global var with no data
- * blocks in the kernel data segment. We do this because
- * we want to ensure this block_list addr is under 4GB.
- */
- rtas_firmware_flash_list.num_blocks = 0;
- flist = (struct flash_block_list *)&rtas_firmware_flash_list;
- rtas_block_list = virt_to_abs(flist);
- if (rtas_block_list >= 4UL*1024*1024*1024) {
- printk(KERN_ALERT "FLASH: kernel bug...flash list header addr above 4GB\n");
- return;
- }
-
- printk(KERN_ALERT "FLASH: preparing saved firmware image for flash\n");
- /* Update the block_list in place. */
- image_size = 0;
- for (f = flist; f; f = next) {
- /* Translate data addrs to absolute */
- for (i = 0; i < f->num_blocks; i++) {
- f->blocks[i].data = (char *)virt_to_abs(f->blocks[i].data);
- image_size += f->blocks[i].length;
- }
- next = f->next;
- /* Don't translate NULL pointer for last entry */
- if (f->next)
- f->next = (struct flash_block_list *)virt_to_abs(f->next);
- else
- f->next = NULL;
- /* make num_blocks into the version/length field */
- f->num_blocks = (FLASH_BLOCK_LIST_VERSION << 56) | ((f->num_blocks+1)*16);
- }
-
- printk(KERN_ALERT "FLASH: flash image is %ld bytes\n", image_size);
- printk(KERN_ALERT "FLASH: performing flash and reboot\n");
- rtas_progress("Flashing \n", 0x0);
- rtas_progress("Please Wait... ", 0x0);
- printk(KERN_ALERT "FLASH: this will take several minutes. Do not power off!\n");
- status = rtas_call(update_token, 1, 1, NULL, rtas_block_list);
- switch (status) { /* should only get "bad" status */
- case 0:
- printk(KERN_ALERT "FLASH: success\n");
- break;
- case -1:
- printk(KERN_ALERT "FLASH: hardware error. Firmware may not be not flashed\n");
- break;
- case -3:
- printk(KERN_ALERT "FLASH: image is corrupt or not correct for this platform. Firmware not flashed\n");
- break;
- case -4:
- printk(KERN_ALERT "FLASH: flash failed when partially complete. System may not reboot\n");
- break;
- default:
- printk(KERN_ALERT "FLASH: unknown flash return code %d\n", status);
- break;
- }
-}
-
-void rtas_flash_bypass_warning(void)
-{
- printk(KERN_ALERT "FLASH: firmware flash requires a reboot\n");
- printk(KERN_ALERT "FLASH: the firmware image will NOT be flashed\n");
-}
-
-
-void
-rtas_restart(char *cmd)
+void rtas_restart(char *cmd)
{
- if (rtas_firmware_flash_list.next)
- rtas_flash_firmware();
-
printk("RTAS system-reboot returned %d\n",
rtas_call(rtas_token("system-reboot"), 0, 1, NULL));
for (;;);
}
-void
-rtas_power_off(void)
+void rtas_power_off(void)
{
- if (rtas_firmware_flash_list.next)
- rtas_flash_bypass_warning();
/* allow power on only with power button press */
printk("RTAS power-off returned %d\n",
rtas_call(rtas_token("power-off"), 2, 1, NULL, -1, -1));
for (;;);
}
-void
-rtas_halt(void)
+void rtas_halt(void)
{
- if (rtas_firmware_flash_list.next)
- rtas_flash_bypass_warning();
rtas_power_off();
}
@@ -632,9 +539,8 @@ asmlinkage int ppc_rtas(struct rtas_args __user *uargs)
{
struct rtas_args args;
unsigned long flags;
- char * buff_copy;
+ char *buff_copy, *errbuf = NULL;
int nargs;
- int err_rc = 0;
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
@@ -653,7 +559,7 @@ asmlinkage int ppc_rtas(struct rtas_args __user *uargs)
nargs * sizeof(rtas_arg_t)) != 0)
return -EFAULT;
- buff_copy = kmalloc(RTAS_ERROR_LOG_MAX, GFP_KERNEL);
+ buff_copy = get_errorlog_buffer();
spin_lock_irqsave(&rtas.lock, flags);
@@ -665,19 +571,14 @@ asmlinkage int ppc_rtas(struct rtas_args __user *uargs)
/* A -1 return code indicates that the last command couldn't
be completed due to a hardware error. */
- if (args.rets[0] == -1) {
- err_rc = __fetch_rtas_last_error();
- if ((err_rc == 0) && buff_copy) {
- memcpy(buff_copy, rtas_err_buf, RTAS_ERROR_LOG_MAX);
- }
- }
+ if (args.rets[0] == -1)
+ errbuf = __fetch_rtas_last_error(buff_copy);
spin_unlock_irqrestore(&rtas.lock, flags);
if (buff_copy) {
- if ((args.rets[0] == -1) && (err_rc == 0)) {
- log_error(buff_copy, ERR_TYPE_RTAS_LOG, 0);
- }
+ if (errbuf)
+ log_error(errbuf, ERR_TYPE_RTAS_LOG, 0);
kfree(buff_copy);
}
@@ -690,6 +591,7 @@ asmlinkage int ppc_rtas(struct rtas_args __user *uargs)
return 0;
}
+#ifdef CONFIG_SMP
/* This version can't take the spinlock, because it never returns */
struct rtas_args rtas_stop_self_args = {
@@ -714,6 +616,7 @@ void rtas_stop_self(void)
panic("Alas, I survived.\n");
}
+#endif
/*
* Call early during boot, before mem init or bootmem, to retreive the RTAS
@@ -722,6 +625,8 @@ void rtas_stop_self(void)
*/
void __init rtas_initialize(void)
{
+ unsigned long rtas_region = RTAS_INSTANTIATE_MAX;
+
/* Get RTAS dev node and fill up our "rtas" structure with infos
* about it.
*/
@@ -743,26 +648,27 @@ void __init rtas_initialize(void)
} else
rtas.dev = NULL;
}
+ if (!rtas.dev)
+ return;
+
/* If RTAS was found, allocate the RMO buffer for it and look for
* the stop-self token if any
*/
- if (rtas.dev) {
- unsigned long rtas_region = RTAS_INSTANTIATE_MAX;
- if (systemcfg->platform == PLATFORM_PSERIES_LPAR)
- rtas_region = min(lmb.rmo_size, RTAS_INSTANTIATE_MAX);
-
- rtas_rmo_buf = lmb_alloc_base(RTAS_RMOBUF_MAX, PAGE_SIZE,
- rtas_region);
+#ifdef CONFIG_PPC64
+ if (systemcfg->platform == PLATFORM_PSERIES_LPAR)
+ rtas_region = min(lmb.rmo_size, RTAS_INSTANTIATE_MAX);
+#endif
+ rtas_rmo_buf = lmb_alloc_base(RTAS_RMOBUF_MAX, PAGE_SIZE, rtas_region);
#ifdef CONFIG_HOTPLUG_CPU
- rtas_stop_self_args.token = rtas_token("stop-self");
+ rtas_stop_self_args.token = rtas_token("stop-self");
#endif /* CONFIG_HOTPLUG_CPU */
- }
-
+#ifdef CONFIG_RTAS_ERROR_LOGGING
+ rtas_last_error_token = rtas_token("rtas-last-error");
+#endif
}
-EXPORT_SYMBOL(rtas_firmware_flash_list);
EXPORT_SYMBOL(rtas_token);
EXPORT_SYMBOL(rtas_call);
EXPORT_SYMBOL(rtas_data_buf);
@@ -772,4 +678,3 @@ EXPORT_SYMBOL(rtas_get_sensor);
EXPORT_SYMBOL(rtas_get_power_level);
EXPORT_SYMBOL(rtas_set_power_level);
EXPORT_SYMBOL(rtas_set_indicator);
-EXPORT_SYMBOL(rtas_get_error_log_max);
diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig
index 7a3b6fc4d97..2d57f588151 100644
--- a/arch/powerpc/platforms/pseries/Kconfig
+++ b/arch/powerpc/platforms/pseries/Kconfig
@@ -21,11 +21,6 @@ config EEH
depends on PPC_PSERIES
default y if !EMBEDDED
-config PPC_RTAS
- bool
- depends on PPC_PSERIES || PPC_BPA
- default y
-
config RTAS_PROC
bool "Proc interface to RTAS"
depends on PPC_RTAS
diff --git a/arch/powerpc/platforms/pseries/Makefile b/arch/powerpc/platforms/pseries/Makefile
index 4c817304fc2..d5c160b789e 100644
--- a/arch/powerpc/platforms/pseries/Makefile
+++ b/arch/powerpc/platforms/pseries/Makefile
@@ -1,4 +1,4 @@
obj-y := pci.o lpar.o hvCall.o nvram.o reconfig.o \
- setup.o iommu.o ras.o
+ setup.o iommu.o rtas-fw.o ras.o
obj-$(CONFIG_SMP) += smp.o
obj-$(CONFIG_IBMVIO) += vio.o
diff --git a/arch/powerpc/platforms/pseries/rtas-fw.c b/arch/powerpc/platforms/pseries/rtas-fw.c
new file mode 100644
index 00000000000..15d81d758ca
--- /dev/null
+++ b/arch/powerpc/platforms/pseries/rtas-fw.c
@@ -0,0 +1,138 @@
+/*
+ *
+ * Procedures for firmware flash updates on pSeries systems.
+ *
+ * Peter Bergner, IBM March 2001.
+ * Copyright (C) 2001 IBM.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <stdarg.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/spinlock.h>
+#include <linux/module.h>
+#include <linux/init.h>
+
+#include <asm/prom.h>
+#include <asm/rtas.h>
+#include <asm/semaphore.h>
+#include <asm/machdep.h>
+#include <asm/page.h>
+#include <asm/param.h>
+#include <asm/system.h>
+#include <asm/abs_addr.h>
+#include <asm/udbg.h>
+#include <asm/delay.h>
+#include <asm/uaccess.h>
+#include <asm/systemcfg.h>
+
+#include "rtas-fw.h"
+
+struct flash_block_list_header rtas_firmware_flash_list = {0, NULL};
+
+#define FLASH_BLOCK_LIST_VERSION (1UL)
+
+static void rtas_flash_firmware(void)
+{
+ unsigned long image_size;
+ struct flash_block_list *f, *next, *flist;
+ unsigned long rtas_block_list;
+ int i, status, update_token;
+
+ update_token = rtas_token("ibm,update-flash-64-and-reboot");
+ if (update_token == RTAS_UNKNOWN_SERVICE) {
+ printk(KERN_ALERT "FLASH: ibm,update-flash-64-and-reboot is not available -- not a service partition?\n");
+ printk(KERN_ALERT "FLASH: firmware will not be flashed\n");
+ return;
+ }
+
+ /* NOTE: the "first" block list is a global var with no data
+ * blocks in the kernel data segment. We do this because
+ * we want to ensure this block_list addr is under 4GB.
+ */
+ rtas_firmware_flash_list.num_blocks = 0;
+ flist = (struct flash_block_list *)&rtas_firmware_flash_list;
+ rtas_block_list = virt_to_abs(flist);
+ if (rtas_block_list >= 4UL*1024*1024*1024) {
+ printk(KERN_ALERT "FLASH: kernel bug...flash list header addr above 4GB\n");
+ return;
+ }
+
+ printk(KERN_ALERT "FLASH: preparing saved firmware image for flash\n");
+ /* Update the block_list in place. */
+ image_size = 0;
+ for (f = flist; f; f = next) {
+ /* Translate data addrs to absolute */
+ for (i = 0; i < f->num_blocks; i++) {
+ f->blocks[i].data = (char *)virt_to_abs(f->blocks[i].data);
+ image_size += f->blocks[i].length;
+ }
+ next = f->next;
+ /* Don't translate NULL pointer for last entry */
+ if (f->next)
+ f->next = (struct flash_block_list *)virt_to_abs(f->next);
+ else
+ f->next = NULL;
+ /* make num_blocks into the version/length field */
+ f->num_blocks = (FLASH_BLOCK_LIST_VERSION << 56) | ((f->num_blocks+1)*16);
+ }
+
+ printk(KERN_ALERT "FLASH: flash image is %ld bytes\n", image_size);
+ printk(KERN_ALERT "FLASH: performing flash and reboot\n");
+ rtas_progress("Flashing \n", 0x0);
+ rtas_progress("Please Wait... ", 0x0);
+ printk(KERN_ALERT "FLASH: this will take several minutes. Do not power off!\n");
+ status = rtas_call(update_token, 1, 1, NULL, rtas_block_list);
+ switch (status) { /* should only get "bad" status */
+ case 0:
+ printk(KERN_ALERT "FLASH: success\n");
+ break;
+ case -1:
+ printk(KERN_ALERT "FLASH: hardware error. Firmware may not be not flashed\n");
+ break;
+ case -3:
+ printk(KERN_ALERT "FLASH: image is corrupt or not correct for this platform. Firmware not flashed\n");
+ break;
+ case -4:
+ printk(KERN_ALERT "FLASH: flash failed when partially complete. System may not reboot\n");
+ break;
+ default:
+ printk(KERN_ALERT "FLASH: unknown flash return code %d\n", status);
+ break;
+ }
+}
+
+void rtas_flash_bypass_warning(void)
+{
+ printk(KERN_ALERT "FLASH: firmware flash requires a reboot\n");
+ printk(KERN_ALERT "FLASH: the firmware image will NOT be flashed\n");
+}
+
+
+void rtas_fw_restart(char *cmd)
+{
+ if (rtas_firmware_flash_list.next)
+ rtas_flash_firmware();
+ rtas_restart(cmd);
+}
+
+void rtas_fw_power_off(void)
+{
+ if (rtas_firmware_flash_list.next)
+ rtas_flash_bypass_warning();
+ rtas_power_off();
+}
+
+void rtas_fw_halt(void)
+{
+ if (rtas_firmware_flash_list.next)
+ rtas_flash_bypass_warning();
+ rtas_halt();
+}
+
+EXPORT_SYMBOL(rtas_firmware_flash_list);
diff --git a/arch/powerpc/platforms/pseries/rtas-fw.h b/arch/powerpc/platforms/pseries/rtas-fw.h
new file mode 100644
index 00000000000..e70fa69974a
--- /dev/null
+++ b/arch/powerpc/platforms/pseries/rtas-fw.h
@@ -0,0 +1,3 @@
+void rtas_fw_restart(char *cmd);
+void rtas_fw_power_off(void);
+void rtas_fw_halt(void);
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 0fa5beae6d1..7e7e556e6b4 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -1,5 +1,5 @@
/*
- * linux/arch/ppc/kernel/setup.c
+ * 64-bit pSeries and RS/6000 setup code.
*
* Copyright (C) 1995 Linus Torvalds
* Adapted from 'alpha' version by Gary Thomas
@@ -67,6 +67,8 @@
#include <asm/i8259.h>
#include <asm/udbg.h>
+#include "rtas-fw.h"
+
#ifdef DEBUG
#define DBG(fmt...) udbg_printf(fmt)
#else
@@ -589,9 +591,9 @@ struct machdep_calls __initdata pSeries_md = {
.pcibios_fixup = pSeries_final_fixup,
.pci_probe_mode = pSeries_pci_probe_mode,
.irq_bus_setup = pSeries_irq_bus_setup,
- .restart = rtas_restart,
- .power_off = rtas_power_off,
- .halt = rtas_halt,
+ .restart = rtas_fw_restart,
+ .power_off = rtas_fw_power_off,
+ .halt = rtas_fw_halt,
.panic = rtas_os_term,
.cpu_die = pSeries_mach_cpu_die,
.get_boot_time = rtas_get_boot_time,
diff --git a/arch/ppc64/Kconfig b/arch/ppc64/Kconfig
index 963f519b771..8cc73cc1b4c 100644
--- a/arch/ppc64/Kconfig
+++ b/arch/ppc64/Kconfig
@@ -318,6 +318,11 @@ config PPC_RTAS
depends on PPC_PSERIES || PPC_BPA
default y
+config RTAS_ERROR_LOGGING
+ bool
+ depends on PPC_RTAS
+ default y
+
config RTAS_PROC
bool "Proc interface to RTAS"
depends on PPC_RTAS
diff --git a/arch/ppc64/kernel/Makefile b/arch/ppc64/kernel/Makefile
index 2c541c6652b..83ecefdcfef 100644
--- a/arch/ppc64/kernel/Makefile
+++ b/arch/ppc64/kernel/Makefile
@@ -43,7 +43,7 @@ obj-$(CONFIG_MODULES) += module.o
ifneq ($(CONFIG_PPC_MERGE),y)
obj-$(CONFIG_MODULES) += ppc_ksyms.o
endif
-obj-$(CONFIG_PPC_RTAS) += rtas.o rtas_pci.o
+obj-$(CONFIG_PPC_RTAS) += rtas_pci.o
obj-$(CONFIG_RTAS_PROC) += rtas-proc.o
obj-$(CONFIG_SCANLOG) += scanlog.o
obj-$(CONFIG_LPARCFG) += lparcfg.o
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 09:34:46 +0000