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-rw-r--r--arch/ppc64/kernel/entry.S9
-rw-r--r--arch/ppc64/kernel/head.S10
-rw-r--r--arch/ppc64/kernel/iSeries_setup.c22
-rw-r--r--arch/ppc64/kernel/idle.c8
-rw-r--r--arch/ppc64/kernel/kprobes.c18
-rw-r--r--arch/ppc64/kernel/mf.c85
-rw-r--r--arch/ppc64/kernel/misc.S4
-rw-r--r--arch/ppc64/kernel/pSeries_reconfig.c8
-rw-r--r--arch/ppc64/kernel/pSeries_smp.c7
-rw-r--r--arch/ppc64/kernel/pci.c2
-rw-r--r--arch/ppc64/kernel/pmac_smp.c28
-rw-r--r--arch/ppc64/kernel/process.c3
-rw-r--r--arch/ppc64/kernel/prom.c2
-rw-r--r--arch/ppc64/kernel/prom_init.c154
-rw-r--r--arch/ppc64/kernel/ptrace.c15
-rw-r--r--arch/ppc64/kernel/rtc.c39
-rw-r--r--arch/ppc64/kernel/setup.c56
-rw-r--r--arch/ppc64/kernel/signal.c6
-rw-r--r--arch/ppc64/kernel/smp.c3
-rw-r--r--arch/ppc64/kernel/sys_ppc32.c70
-rw-r--r--arch/ppc64/kernel/syscalls.c33
-rw-r--r--arch/ppc64/kernel/sysfs.c8
-rw-r--r--arch/ppc64/kernel/time.c3
-rw-r--r--arch/ppc64/kernel/xics.c16
24 files changed, 328 insertions, 281 deletions
diff --git a/arch/ppc64/kernel/entry.S b/arch/ppc64/kernel/entry.S
index d3604056e1a..b61572eb2a7 100644
--- a/arch/ppc64/kernel/entry.S
+++ b/arch/ppc64/kernel/entry.S
@@ -436,15 +436,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
REST_8GPRS(14, r1)
REST_10GPRS(22, r1)
-#ifdef CONFIG_PPC_ISERIES
- clrrdi r7,r1,THREAD_SHIFT /* get current_thread_info() */
- ld r7,TI_FLAGS(r7) /* Get run light flag */
- mfspr r9,CTRLF
- srdi r7,r7,TIF_RUN_LIGHT
- insrdi r9,r7,1,63 /* Insert run light into CTRL */
- mtspr CTRLT,r9
-#endif
-
/* convert old thread to its task_struct for return value */
addi r3,r3,-THREAD
ld r7,_NIP(r1) /* Return to _switch caller in new task */
diff --git a/arch/ppc64/kernel/head.S b/arch/ppc64/kernel/head.S
index 92a744c31ab..346dbf606b5 100644
--- a/arch/ppc64/kernel/head.S
+++ b/arch/ppc64/kernel/head.S
@@ -626,10 +626,10 @@ system_reset_iSeries:
lhz r24,PACAPACAINDEX(r13) /* Get processor # */
cmpwi 0,r24,0 /* Are we processor 0? */
beq .__start_initialization_iSeries /* Start up the first processor */
- mfspr r4,CTRLF
- li r5,RUNLATCH /* Turn off the run light */
+ mfspr r4,SPRN_CTRLF
+ li r5,CTRL_RUNLATCH /* Turn off the run light */
andc r4,r4,r5
- mtspr CTRLT,r4
+ mtspr SPRN_CTRLT,r4
1:
HMT_LOW
@@ -2082,9 +2082,9 @@ _GLOBAL(hmt_start_secondary)
mfspr r4, HID0
ori r4, r4, 0x1
mtspr HID0, r4
- mfspr r4, CTRLF
+ mfspr r4, SPRN_CTRLF
oris r4, r4, 0x40
- mtspr CTRLT, r4
+ mtspr SPRN_CTRLT, r4
blr
#endif
diff --git a/arch/ppc64/kernel/iSeries_setup.c b/arch/ppc64/kernel/iSeries_setup.c
index da20120f226..6d06eb550a3 100644
--- a/arch/ppc64/kernel/iSeries_setup.c
+++ b/arch/ppc64/kernel/iSeries_setup.c
@@ -852,6 +852,28 @@ static int __init iSeries_src_init(void)
late_initcall(iSeries_src_init);
+static int set_spread_lpevents(char *str)
+{
+ unsigned long i;
+ unsigned long val = simple_strtoul(str, NULL, 0);
+
+ /*
+ * The parameter is the number of processors to share in processing
+ * lp events.
+ */
+ if (( val > 0) && (val <= NR_CPUS)) {
+ for (i = 1; i < val; ++i)
+ paca[i].lpqueue_ptr = paca[0].lpqueue_ptr;
+
+ printk("lpevent processing spread over %ld processors\n", val);
+ } else {
+ printk("invalid spread_lpevents %ld\n", val);
+ }
+
+ return 1;
+}
+__setup("spread_lpevents=", set_spread_lpevents);
+
void __init iSeries_early_setup(void)
{
iSeries_fixup_klimit();
diff --git a/arch/ppc64/kernel/idle.c b/arch/ppc64/kernel/idle.c
index 6abc621d3ba..f24ce2b8720 100644
--- a/arch/ppc64/kernel/idle.c
+++ b/arch/ppc64/kernel/idle.c
@@ -75,13 +75,9 @@ static int iSeries_idle(void)
{
struct paca_struct *lpaca;
long oldval;
- unsigned long CTRL;
/* ensure iSeries run light will be out when idle */
- clear_thread_flag(TIF_RUN_LIGHT);
- CTRL = mfspr(CTRLF);
- CTRL &= ~RUNLATCH;
- mtspr(CTRLT, CTRL);
+ ppc64_runlatch_off();
lpaca = get_paca();
@@ -111,7 +107,9 @@ static int iSeries_idle(void)
}
}
+ ppc64_runlatch_on();
schedule();
+ ppc64_runlatch_off();
}
return 0;
diff --git a/arch/ppc64/kernel/kprobes.c b/arch/ppc64/kernel/kprobes.c
index 103daaf7357..e950a2058a1 100644
--- a/arch/ppc64/kernel/kprobes.c
+++ b/arch/ppc64/kernel/kprobes.c
@@ -45,12 +45,17 @@ static struct pt_regs jprobe_saved_regs;
int arch_prepare_kprobe(struct kprobe *p)
{
+ int ret = 0;
kprobe_opcode_t insn = *p->addr;
- if (IS_MTMSRD(insn) || IS_RFID(insn))
- /* cannot put bp on RFID/MTMSRD */
- return 1;
- return 0;
+ if ((unsigned long)p->addr & 0x03) {
+ printk("Attempt to register kprobe at an unaligned address\n");
+ ret = -EINVAL;
+ } else if (IS_MTMSRD(insn) || IS_RFID(insn)) {
+ printk("Cannot register a kprobe on rfid or mtmsrd\n");
+ ret = -EINVAL;
+ }
+ return ret;
}
void arch_copy_kprobe(struct kprobe *p)
@@ -172,8 +177,6 @@ static void resume_execution(struct kprobe *p, struct pt_regs *regs)
ret = emulate_step(regs, p->ainsn.insn[0]);
if (ret == 0)
regs->nip = (unsigned long)p->addr + 4;
-
- regs->msr &= ~MSR_SE;
}
static inline int post_kprobe_handler(struct pt_regs *regs)
@@ -210,6 +213,7 @@ static inline int kprobe_fault_handler(struct pt_regs *regs, int trapnr)
if (kprobe_status & KPROBE_HIT_SS) {
resume_execution(current_kprobe, regs);
+ regs->msr &= ~MSR_SE;
regs->msr |= kprobe_saved_msr;
unlock_kprobes();
@@ -233,8 +237,6 @@ int kprobe_exceptions_notify(struct notifier_block *self, unsigned long val,
*/
preempt_disable();
switch (val) {
- case DIE_IABR_MATCH:
- case DIE_DABR_MATCH:
case DIE_BPT:
if (kprobe_handler(args->regs))
ret = NOTIFY_STOP;
diff --git a/arch/ppc64/kernel/mf.c b/arch/ppc64/kernel/mf.c
index 1bd52ece497..5aca7e8005a 100644
--- a/arch/ppc64/kernel/mf.c
+++ b/arch/ppc64/kernel/mf.c
@@ -1,7 +1,7 @@
/*
* mf.c
* Copyright (C) 2001 Troy D. Armstrong IBM Corporation
- * Copyright (C) 2004 Stephen Rothwell IBM Corporation
+ * Copyright (C) 2004-2005 Stephen Rothwell IBM Corporation
*
* This modules exists as an interface between a Linux secondary partition
* running on an iSeries and the primary partition's Virtual Service
@@ -36,10 +36,12 @@
#include <asm/time.h>
#include <asm/uaccess.h>
+#include <asm/paca.h>
#include <asm/iSeries/vio.h>
#include <asm/iSeries/mf.h>
#include <asm/iSeries/HvLpConfig.h>
#include <asm/iSeries/ItSpCommArea.h>
+#include <asm/iSeries/ItLpQueue.h>
/*
* This is the structure layout for the Machine Facilites LPAR event
@@ -696,36 +698,23 @@ static void get_rtc_time_complete(void *token, struct ce_msg_data *ce_msg)
complete(&rtc->com);
}
-int mf_get_rtc(struct rtc_time *tm)
+static int rtc_set_tm(int rc, u8 *ce_msg, struct rtc_time *tm)
{
- struct ce_msg_comp_data ce_complete;
- struct rtc_time_data rtc_data;
- int rc;
-
- memset(&ce_complete, 0, sizeof(ce_complete));
- memset(&rtc_data, 0, sizeof(rtc_data));
- init_completion(&rtc_data.com);
- ce_complete.handler = &get_rtc_time_complete;
- ce_complete.token = &rtc_data;
- rc = signal_ce_msg_simple(0x40, &ce_complete);
- if (rc)
- return rc;
- wait_for_completion(&rtc_data.com);
tm->tm_wday = 0;
tm->tm_yday = 0;
tm->tm_isdst = 0;
- if (rtc_data.rc) {
+ if (rc) {
tm->tm_sec = 0;
tm->tm_min = 0;
tm->tm_hour = 0;
tm->tm_mday = 15;
tm->tm_mon = 5;
tm->tm_year = 52;
- return rtc_data.rc;
+ return rc;
}
- if ((rtc_data.ce_msg.ce_msg[2] == 0xa9) ||
- (rtc_data.ce_msg.ce_msg[2] == 0xaf)) {
+ if ((ce_msg[2] == 0xa9) ||
+ (ce_msg[2] == 0xaf)) {
/* TOD clock is not set */
tm->tm_sec = 1;
tm->tm_min = 1;
@@ -736,7 +725,6 @@ int mf_get_rtc(struct rtc_time *tm)
mf_set_rtc(tm);
}
{
- u8 *ce_msg = rtc_data.ce_msg.ce_msg;
u8 year = ce_msg[5];
u8 sec = ce_msg[6];
u8 min = ce_msg[7];
@@ -765,6 +753,63 @@ int mf_get_rtc(struct rtc_time *tm)
return 0;
}
+int mf_get_rtc(struct rtc_time *tm)
+{
+ struct ce_msg_comp_data ce_complete;
+ struct rtc_time_data rtc_data;
+ int rc;
+
+ memset(&ce_complete, 0, sizeof(ce_complete));
+ memset(&rtc_data, 0, sizeof(rtc_data));
+ init_completion(&rtc_data.com);
+ ce_complete.handler = &get_rtc_time_complete;
+ ce_complete.token = &rtc_data;
+ rc = signal_ce_msg_simple(0x40, &ce_complete);
+ if (rc)
+ return rc;
+ wait_for_completion(&rtc_data.com);
+ return rtc_set_tm(rtc_data.rc, rtc_data.ce_msg.ce_msg, tm);
+}
+
+struct boot_rtc_time_data {
+ int busy;
+ struct ce_msg_data ce_msg;
+ int rc;
+};
+
+static void get_boot_rtc_time_complete(void *token, struct ce_msg_data *ce_msg)
+{
+ struct boot_rtc_time_data *rtc = token;
+
+ memcpy(&rtc->ce_msg, ce_msg, sizeof(rtc->ce_msg));
+ rtc->rc = 0;
+ rtc->busy = 0;
+}
+
+int mf_get_boot_rtc(struct rtc_time *tm)
+{
+ struct ce_msg_comp_data ce_complete;
+ struct boot_rtc_time_data rtc_data;
+ int rc;
+
+ memset(&ce_complete, 0, sizeof(ce_complete));
+ memset(&rtc_data, 0, sizeof(rtc_data));
+ rtc_data.busy = 1;
+ ce_complete.handler = &get_boot_rtc_time_complete;
+ ce_complete.token = &rtc_data;
+ rc = signal_ce_msg_simple(0x40, &ce_complete);
+ if (rc)
+ return rc;
+ /* We need to poll here as we are not yet taking interrupts */
+ while (rtc_data.busy) {
+ extern unsigned long lpevent_count;
+ struct ItLpQueue *lpq = get_paca()->lpqueue_ptr;
+ if (lpq && ItLpQueue_isLpIntPending(lpq))
+ lpevent_count += ItLpQueue_process(lpq, NULL);
+ }
+ return rtc_set_tm(rtc_data.rc, rtc_data.ce_msg.ce_msg, tm);
+}
+
int mf_set_rtc(struct rtc_time *tm)
{
char ce_time[12];
diff --git a/arch/ppc64/kernel/misc.S b/arch/ppc64/kernel/misc.S
index 90b41f48d21..e3c73b3425d 100644
--- a/arch/ppc64/kernel/misc.S
+++ b/arch/ppc64/kernel/misc.S
@@ -32,7 +32,7 @@
.text
/*
- * Returns (address we're running at) - (address we were linked at)
+ * Returns (address we were linked at) - (address we are running at)
* for use before the text and data are mapped to KERNELBASE.
*/
@@ -792,7 +792,7 @@ _GLOBAL(sys_call_table32)
.llong .compat_sys_newstat
.llong .compat_sys_newlstat
.llong .compat_sys_newfstat
- .llong .sys_uname
+ .llong .sys32_uname
.llong .sys_ni_syscall /* 110 old iopl syscall */
.llong .sys_vhangup
.llong .sys_ni_syscall /* old idle syscall */
diff --git a/arch/ppc64/kernel/pSeries_reconfig.c b/arch/ppc64/kernel/pSeries_reconfig.c
index cb5443f2e49..dc2a69d412a 100644
--- a/arch/ppc64/kernel/pSeries_reconfig.c
+++ b/arch/ppc64/kernel/pSeries_reconfig.c
@@ -47,14 +47,6 @@ static void remove_node_proc_entries(struct device_node *np)
remove_proc_entry(pp->name, np->pde);
pp = pp->next;
}
-
- /* Assuming that symlinks have the same parent directory as
- * np->pde.
- */
- if (np->name_link)
- remove_proc_entry(np->name_link->name, parent->pde);
- if (np->addr_link)
- remove_proc_entry(np->addr_link->name, parent->pde);
if (np->pde)
remove_proc_entry(np->pde->name, parent->pde);
}
diff --git a/arch/ppc64/kernel/pSeries_smp.c b/arch/ppc64/kernel/pSeries_smp.c
index c60d8cb2b84..fbad349ec58 100644
--- a/arch/ppc64/kernel/pSeries_smp.c
+++ b/arch/ppc64/kernel/pSeries_smp.c
@@ -326,13 +326,6 @@ static void __devinit smp_xics_setup_cpu(int cpu)
cpu_clear(cpu, of_spin_map);
- /*
- * Put the calling processor into the GIQ. This is really only
- * necessary from a secondary thread as the OF start-cpu interface
- * performs this function for us on primary threads.
- */
- rtas_set_indicator(GLOBAL_INTERRUPT_QUEUE,
- (1UL << interrupt_server_size) - 1 - default_distrib_server, 1);
}
static DEFINE_SPINLOCK(timebase_lock);
diff --git a/arch/ppc64/kernel/pci.c b/arch/ppc64/kernel/pci.c
index be3cc387c1e..d786d4b6af0 100644
--- a/arch/ppc64/kernel/pci.c
+++ b/arch/ppc64/kernel/pci.c
@@ -438,7 +438,7 @@ pgprot_t pci_phys_mem_access_prot(struct file *file,
int i;
if (page_is_ram(offset >> PAGE_SHIFT))
- return prot;
+ return __pgprot(prot);
prot |= _PAGE_NO_CACHE | _PAGE_GUARDED;
diff --git a/arch/ppc64/kernel/pmac_smp.c b/arch/ppc64/kernel/pmac_smp.c
index c27588ede2f..a23de37227b 100644
--- a/arch/ppc64/kernel/pmac_smp.c
+++ b/arch/ppc64/kernel/pmac_smp.c
@@ -68,6 +68,7 @@ extern struct smp_ops_t *smp_ops;
static void (*pmac_tb_freeze)(int freeze);
static struct device_node *pmac_tb_clock_chip_host;
+static u8 pmac_tb_pulsar_addr;
static DEFINE_SPINLOCK(timebase_lock);
static unsigned long timebase;
@@ -106,12 +107,9 @@ static void smp_core99_pulsar_tb_freeze(int freeze)
u8 data;
int rc;
- /* Strangely, the device-tree says address is 0xd2, but darwin
- * accesses 0xd0 ...
- */
pmac_low_i2c_setmode(pmac_tb_clock_chip_host, pmac_low_i2c_mode_combined);
rc = pmac_low_i2c_xfer(pmac_tb_clock_chip_host,
- 0xd4 | pmac_low_i2c_read,
+ pmac_tb_pulsar_addr | pmac_low_i2c_read,
0x2e, &data, 1);
if (rc != 0)
goto bail;
@@ -120,7 +118,7 @@ static void smp_core99_pulsar_tb_freeze(int freeze)
pmac_low_i2c_setmode(pmac_tb_clock_chip_host, pmac_low_i2c_mode_stdsub);
rc = pmac_low_i2c_xfer(pmac_tb_clock_chip_host,
- 0xd4 | pmac_low_i2c_write,
+ pmac_tb_pulsar_addr | pmac_low_i2c_write,
0x2e, &data, 1);
bail:
if (rc != 0) {
@@ -185,6 +183,12 @@ static int __init smp_core99_probe(void)
if (ncpus <= 1)
return 1;
+ /* HW sync only on these platforms */
+ if (!machine_is_compatible("PowerMac7,2") &&
+ !machine_is_compatible("PowerMac7,3") &&
+ !machine_is_compatible("RackMac3,1"))
+ goto nohwsync;
+
/* Look for the clock chip */
for (cc = NULL; (cc = of_find_node_by_name(cc, "i2c-hwclock")) != NULL;) {
struct device_node *p = of_get_parent(cc);
@@ -198,11 +202,18 @@ static int __init smp_core99_probe(void)
goto next;
switch (*reg) {
case 0xd2:
- pmac_tb_freeze = smp_core99_cypress_tb_freeze;
- printk(KERN_INFO "Timebase clock is Cypress chip\n");
+ if (device_is_compatible(cc, "pulsar-legacy-slewing")) {
+ pmac_tb_freeze = smp_core99_pulsar_tb_freeze;
+ pmac_tb_pulsar_addr = 0xd2;
+ printk(KERN_INFO "Timebase clock is Pulsar chip\n");
+ } else if (device_is_compatible(cc, "cy28508")) {
+ pmac_tb_freeze = smp_core99_cypress_tb_freeze;
+ printk(KERN_INFO "Timebase clock is Cypress chip\n");
+ }
break;
case 0xd4:
pmac_tb_freeze = smp_core99_pulsar_tb_freeze;
+ pmac_tb_pulsar_addr = 0xd4;
printk(KERN_INFO "Timebase clock is Pulsar chip\n");
break;
}
@@ -210,12 +221,15 @@ static int __init smp_core99_probe(void)
pmac_tb_clock_chip_host = p;
smp_ops->give_timebase = smp_core99_give_timebase;
smp_ops->take_timebase = smp_core99_take_timebase;
+ of_node_put(cc);
+ of_node_put(p);
break;
}
next:
of_node_put(p);
}
+ nohwsync:
mpic_request_ipis();
return ncpus;
diff --git a/arch/ppc64/kernel/process.c b/arch/ppc64/kernel/process.c
index 8b068612273..cdfecbeb331 100644
--- a/arch/ppc64/kernel/process.c
+++ b/arch/ppc64/kernel/process.c
@@ -378,9 +378,6 @@ copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
childregs->gpr[1] = sp + sizeof(struct pt_regs);
p->thread.regs = NULL; /* no user register state */
clear_ti_thread_flag(p->thread_info, TIF_32BIT);
-#ifdef CONFIG_PPC_ISERIES
- set_ti_thread_flag(p->thread_info, TIF_RUN_LIGHT);
-#endif
} else {
childregs->gpr[1] = usp;
p->thread.regs = childregs;
diff --git a/arch/ppc64/kernel/prom.c b/arch/ppc64/kernel/prom.c
index fe2946c5831..eb6538b5800 100644
--- a/arch/ppc64/kernel/prom.c
+++ b/arch/ppc64/kernel/prom.c
@@ -834,7 +834,7 @@ void __init unflatten_device_tree(void)
{
unsigned long start, mem, size;
struct device_node **allnextp = &allnodes;
- char *p;
+ char *p = NULL;
int l = 0;
DBG(" -> unflatten_device_tree()\n");
diff --git a/arch/ppc64/kernel/prom_init.c b/arch/ppc64/kernel/prom_init.c
index 35ec42de962..b7683abfbe6 100644
--- a/arch/ppc64/kernel/prom_init.c
+++ b/arch/ppc64/kernel/prom_init.c
@@ -211,13 +211,23 @@ struct {
*/
#define ADDR(x) (u32) ((unsigned long)(x) - offset)
+/*
+ * Error results ... some OF calls will return "-1" on error, some
+ * will return 0, some will return either. To simplify, here are
+ * macros to use with any ihandle or phandle return value to check if
+ * it is valid
+ */
+
+#define PROM_ERROR (-1u)
+#define PHANDLE_VALID(p) ((p) != 0 && (p) != PROM_ERROR)
+#define IHANDLE_VALID(i) ((i) != 0 && (i) != PROM_ERROR)
+
+
/* This is the one and *ONLY* place where we actually call open
* firmware from, since we need to make sure we're running in 32b
* mode when we do. We switch back to 64b mode upon return.
*/
-#define PROM_ERROR (-1)
-
static int __init call_prom(const char *service, int nargs, int nret, ...)
{
int i;
@@ -587,14 +597,13 @@ static void __init prom_send_capabilities(void)
{
unsigned long offset = reloc_offset();
ihandle elfloader;
- int ret;
elfloader = call_prom("open", 1, 1, ADDR("/packages/elf-loader"));
if (elfloader == 0) {
prom_printf("couldn't open /packages/elf-loader\n");
return;
}
- ret = call_prom("call-method", 3, 1, ADDR("process-elf-header"),
+ call_prom("call-method", 3, 1, ADDR("process-elf-header"),
elfloader, ADDR(&fake_elf));
call_prom("close", 1, 0, elfloader);
}
@@ -646,7 +655,7 @@ static unsigned long __init alloc_up(unsigned long size, unsigned long align)
base = _ALIGN_UP(base + 0x100000, align)) {
prom_debug(" trying: 0x%x\n\r", base);
addr = (unsigned long)prom_claim(base, size, 0);
- if ((int)addr != PROM_ERROR)
+ if (addr != PROM_ERROR)
break;
addr = 0;
if (align == 0)
@@ -708,7 +717,7 @@ static unsigned long __init alloc_down(unsigned long size, unsigned long align,
for(; base > RELOC(alloc_bottom); base = _ALIGN_DOWN(base - 0x100000, align)) {
prom_debug(" trying: 0x%x\n\r", base);
addr = (unsigned long)prom_claim(base, size, 0);
- if ((int)addr != PROM_ERROR)
+ if (addr != PROM_ERROR)
break;
addr = 0;
}
@@ -902,18 +911,19 @@ static void __init prom_instantiate_rtas(void)
{
unsigned long offset = reloc_offset();
struct prom_t *_prom = PTRRELOC(&prom);
- phandle prom_rtas, rtas_node;
+ phandle rtas_node;
+ ihandle rtas_inst;
u32 base, entry = 0;
u32 size = 0;
prom_debug("prom_instantiate_rtas: start...\n");
- prom_rtas = call_prom("finddevice", 1, 1, ADDR("/rtas"));
- prom_debug("prom_rtas: %x\n", prom_rtas);
- if (prom_rtas == (phandle) -1)
+ rtas_node = call_prom("finddevice", 1, 1, ADDR("/rtas"));
+ prom_debug("rtas_node: %x\n", rtas_node);
+ if (!PHANDLE_VALID(rtas_node))
return;
- prom_getprop(prom_rtas, "rtas-size", &size, sizeof(size));
+ prom_getprop(rtas_node, "rtas-size", &size, sizeof(size));
if (size == 0)
return;
@@ -922,14 +932,18 @@ static void __init prom_instantiate_rtas(void)
prom_printf("RTAS allocation failed !\n");
return;
}
- prom_printf("instantiating rtas at 0x%x", base);
- rtas_node = call_prom("open", 1, 1, ADDR("/rtas"));
- prom_printf("...");
+ rtas_inst = call_prom("open", 1, 1, ADDR("/rtas"));
+ if (!IHANDLE_VALID(rtas_inst)) {
+ prom_printf("opening rtas package failed");
+ return;
+ }
+
+ prom_printf("instantiating rtas at 0x%x ...", base);
if (call_prom("call-method", 3, 2,
ADDR("instantiate-rtas"),
- rtas_node, base) != PROM_ERROR) {
+ rtas_inst, base) != PROM_ERROR) {
entry = (long)_prom->args.rets[1];
}
if (entry == 0) {
@@ -940,8 +954,8 @@ static void __init prom_instantiate_rtas(void)
reserve_mem(base, size);
- prom_setprop(prom_rtas, "linux,rtas-base", &base, sizeof(base));
- prom_setprop(prom_rtas, "linux,rtas-entry", &entry, sizeof(entry));
+ prom_setprop(rtas_node, "linux,rtas-base", &base, sizeof(base));
+ prom_setprop(rtas_node, "linux,rtas-entry", &entry, sizeof(entry));
prom_debug("rtas base = 0x%x\n", base);
prom_debug("rtas entry = 0x%x\n", entry);
@@ -1062,7 +1076,7 @@ static void __init prom_initialize_tce_table(void)
prom_printf("opening PHB %s", path);
phb_node = call_prom("open", 1, 1, path);
- if ( (long)phb_node <= 0)
+ if (phb_node == 0)
prom_printf("... failed\n");
else
prom_printf("... done\n");
@@ -1279,12 +1293,12 @@ static void __init prom_init_client_services(unsigned long pp)
/* get a handle for the stdout device */
_prom->chosen = call_prom("finddevice", 1, 1, ADDR("/chosen"));
- if ((long)_prom->chosen <= 0)
+ 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 ((long)_prom->root <= 0)
+ if (!PHANDLE_VALID(_prom->root))
prom_panic("cannot find device tree root"); /* msg won't be printed :( */
}
@@ -1356,9 +1370,8 @@ static int __init prom_find_machine_type(void)
}
/* Default to pSeries. We need to know if we are running LPAR */
rtas = call_prom("finddevice", 1, 1, ADDR("/rtas"));
- if (rtas != (phandle) -1) {
- unsigned long x;
- x = prom_getproplen(rtas, "ibm,hypertas-functions");
+ if (PHANDLE_VALID(rtas)) {
+ int x = prom_getproplen(rtas, "ibm,hypertas-functions");
if (x != PROM_ERROR) {
prom_printf("Hypertas detected, assuming LPAR !\n");
return PLATFORM_PSERIES_LPAR;
@@ -1426,12 +1439,13 @@ static void __init prom_check_displays(void)
* leave some room at the end of the path for appending extra
* arguments
*/
- if (call_prom("package-to-path", 3, 1, node, path, PROM_SCRATCH_SIZE-10) < 0)
+ if (call_prom("package-to-path", 3, 1, node, path,
+ PROM_SCRATCH_SIZE-10) == PROM_ERROR)
continue;
prom_printf("found display : %s, opening ... ", path);
ih = call_prom("open", 1, 1, path);
- if (ih == (ihandle)0 || ih == (ihandle)-1) {
+ if (ih == 0) {
prom_printf("failed\n");
continue;
}
@@ -1514,6 +1528,12 @@ static unsigned long __init dt_find_string(char *str)
return 0;
}
+/*
+ * The Open Firmware 1275 specification states properties must be 31 bytes or
+ * less, however not all firmwares obey this. Make it 64 bytes to be safe.
+ */
+#define MAX_PROPERTY_NAME 64
+
static void __init scan_dt_build_strings(phandle node, unsigned long *mem_start,
unsigned long *mem_end)
{
@@ -1527,10 +1547,12 @@ static void __init scan_dt_build_strings(phandle node, unsigned long *mem_start,
/* get and store all property names */
prev_name = RELOC("");
for (;;) {
-
- /* 32 is max len of name including nul. */
- namep = make_room(mem_start, mem_end, 32, 1);
- if (call_prom("nextprop", 3, 1, node, prev_name, namep) <= 0) {
+ int rc;
+
+ /* 64 is max len of name including nul. */
+ namep = make_room(mem_start, mem_end, MAX_PROPERTY_NAME, 1);
+ rc = call_prom("nextprop", 3, 1, node, prev_name, namep);
+ if (rc != 1) {
/* No more nodes: unwind alloc */
*mem_start = (unsigned long)namep;
break;
@@ -1555,18 +1577,12 @@ static void __init scan_dt_build_strings(phandle node, unsigned long *mem_start,
}
}
-/*
- * The Open Firmware 1275 specification states properties must be 31 bytes or
- * less, however not all firmwares obey this. Make it 64 bytes to be safe.
- */
-#define MAX_PROPERTY_NAME 64
-
static void __init scan_dt_build_struct(phandle node, unsigned long *mem_start,
unsigned long *mem_end)
{
int l, align;
phandle child;
- char *namep, *prev_name, *sstart;
+ char *namep, *prev_name, *sstart, *p, *ep;
unsigned long soff;
unsigned char *valp;
unsigned long offset = reloc_offset();
@@ -1588,6 +1604,14 @@ static void __init scan_dt_build_struct(phandle node, unsigned long *mem_start,
call_prom("package-to-path", 3, 1, node, namep, l);
}
namep[l] = '\0';
+ /* Fixup an Apple bug where they have bogus \0 chars in the
+ * middle of the path in some properties
+ */
+ for (p = namep, ep = namep + l; p < ep; p++)
+ if (*p == '\0') {
+ memmove(p, p+1, ep - p);
+ ep--; l--;
+ }
*mem_start = _ALIGN(((unsigned long) namep) + strlen(namep) + 1, 4);
}
@@ -1599,7 +1623,10 @@ static void __init scan_dt_build_struct(phandle node, unsigned long *mem_start,
prev_name = RELOC("");
sstart = (char *)RELOC(dt_string_start);
for (;;) {
- if (call_prom("nextprop", 3, 1, node, prev_name, pname) <= 0)
+ int rc;
+
+ rc = call_prom("nextprop", 3, 1, node, prev_name, pname);
+ if (rc != 1)
break;
/* find string offset */
@@ -1615,7 +1642,7 @@ static void __init scan_dt_build_struct(phandle node, unsigned long *mem_start,
l = call_prom("getproplen", 2, 1, node, pname);
/* sanity checks */
- if (l < 0)
+ if (l == PROM_ERROR)
continue;
if (l > MAX_PROPERTY_LENGTH) {
prom_printf("WARNING: ignoring large property ");
@@ -1750,7 +1777,45 @@ static void __init flatten_device_tree(void)
prom_printf("Device tree struct 0x%x -> 0x%x\n",
RELOC(dt_struct_start), RELOC(dt_struct_end));
- }
+}
+
+
+static void __init fixup_device_tree(void)
+{
+ unsigned long offset = reloc_offset();
+ phandle u3, i2c, mpic;
+ u32 u3_rev;
+ u32 interrupts[2];
+ u32 parent;
+
+ /* Some G5s have a missing interrupt definition, fix it up here */
+ u3 = call_prom("finddevice", 1, 1, ADDR("/u3@0,f8000000"));
+ if (!PHANDLE_VALID(u3))
+ return;
+ i2c = call_prom("finddevice", 1, 1, ADDR("/u3@0,f8000000/i2c@f8001000"));
+ if (!PHANDLE_VALID(i2c))
+ return;
+ mpic = call_prom("finddevice", 1, 1, ADDR("/u3@0,f8000000/mpic@f8040000"));
+ if (!PHANDLE_VALID(mpic))
+ return;
+
+ /* check if proper rev of u3 */
+ if (prom_getprop(u3, "device-rev", &u3_rev, sizeof(u3_rev))
+ == PROM_ERROR)
+ return;
+ if (u3_rev != 0x35)
+ return;
+ /* does it need fixup ? */
+ if (prom_getproplen(i2c, "interrupts") > 0)
+ return;
+ /* interrupt on this revision of u3 is number 0 and level */
+ interrupts[0] = 0;
+ interrupts[1] = 1;
+ prom_setprop(i2c, "interrupts", &interrupts, sizeof(interrupts));
+ parent = (u32)mpic;
+ prom_setprop(i2c, "interrupt-parent", &parent, sizeof(parent));
+}
+
static void __init prom_find_boot_cpu(void)
{
@@ -1844,6 +1909,12 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4, unsigned long
&getprop_rval, sizeof(getprop_rval));
/*
+ * On pSeries, inform the firmware about our capabilities
+ */
+ if (RELOC(of_platform) & PLATFORM_PSERIES)
+ prom_send_capabilities();
+
+ /*
* On pSeries, copy the CPU hold code
*/
if (RELOC(of_platform) & PLATFORM_PSERIES)
@@ -1920,6 +1991,11 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4, unsigned long
}
/*
+ * Fixup any known bugs in the device-tree
+ */
+ fixup_device_tree();
+
+ /*
* Now finally create the flattened device-tree
*/
prom_printf("copying OF device tree ...\n");
diff --git a/arch/ppc64/kernel/ptrace.c b/arch/ppc64/kernel/ptrace.c
index 5a846324ca8..9f8c6087ae5 100644
--- a/arch/ppc64/kernel/ptrace.c
+++ b/arch/ppc64/kernel/ptrace.c
@@ -305,14 +305,17 @@ static void do_syscall_trace(void)
void do_syscall_trace_enter(struct pt_regs *regs)
{
+ if (test_thread_flag(TIF_SYSCALL_TRACE)
+ && (current->ptrace & PT_PTRACED))
+ do_syscall_trace();
+
if (unlikely(current->audit_context))
- audit_syscall_entry(current, regs->gpr[0],
+ audit_syscall_entry(current,
+ test_thread_flag(TIF_32BIT)?AUDIT_ARCH_PPC:AUDIT_ARCH_PPC64,
+ regs->gpr[0],
regs->gpr[3], regs->gpr[4],
regs->gpr[5], regs->gpr[6]);
- if (test_thread_flag(TIF_SYSCALL_TRACE)
- && (current->ptrace & PT_PTRACED))
- do_syscall_trace();
}
void do_syscall_trace_leave(struct pt_regs *regs)
@@ -320,7 +323,9 @@ void do_syscall_trace_leave(struct pt_regs *regs)
secure_computing(regs->gpr[0]);
if (unlikely(current->audit_context))
- audit_syscall_exit(current, regs->result);
+ audit_syscall_exit(current,
+ (regs->ccr&0x1000)?AUDITSC_FAILURE:AUDITSC_SUCCESS,
+ regs->result);
if ((test_thread_flag(TIF_SYSCALL_TRACE)
|| test_thread_flag(TIF_SINGLESTEP))
diff --git a/arch/ppc64/kernel/rtc.c b/arch/ppc64/kernel/rtc.c
index 3e70b91375f..67989055a9f 100644
--- a/arch/ppc64/kernel/rtc.c
+++ b/arch/ppc64/kernel/rtc.c
@@ -292,47 +292,10 @@ int iSeries_set_rtc_time(struct rtc_time *tm)
void iSeries_get_boot_time(struct rtc_time *tm)
{
- unsigned long time;
- static unsigned long lastsec = 1;
-
- u32 dataWord1 = *((u32 *)(&xSpCommArea.xBcdTimeAtIplStart));
- u32 dataWord2 = *(((u32 *)&(xSpCommArea.xBcdTimeAtIplStart)) + 1);
- int year = 1970;
- int year1 = ( dataWord1 >> 24 ) & 0x000000FF;
- int year2 = ( dataWord1 >> 16 ) & 0x000000FF;
- int sec = ( dataWord1 >> 8 ) & 0x000000FF;
- int min = dataWord1 & 0x000000FF;
- int hour = ( dataWord2 >> 24 ) & 0x000000FF;
- int day = ( dataWord2 >> 8 ) & 0x000000FF;
- int mon = dataWord2 & 0x000000FF;
-
if ( piranha_simulator )
return;
- BCD_TO_BIN(sec);
- BCD_TO_BIN(min);
- BCD_TO_BIN(hour);
- BCD_TO_BIN(day);
- BCD_TO_BIN(mon);
- BCD_TO_BIN(year1);
- BCD_TO_BIN(year2);
- year = year1 * 100 + year2;
-
- time = mktime(year, mon, day, hour, min, sec);
- time += ( jiffies / HZ );
-
- /* Now THIS is a nasty hack!
- * It ensures that the first two calls get different answers.
- * That way the loop in init_time (time.c) will not think
- * the clock is stuck.
- */
- if ( lastsec ) {
- time -= lastsec;
- --lastsec;
- }
-
- to_tm(time, tm);
- tm->tm_year -= 1900;
+ mf_get_boot_rtc(tm);
tm->tm_mon -= 1;
}
#endif
diff --git a/arch/ppc64/kernel/setup.c b/arch/ppc64/kernel/setup.c
index 21c57f539c2..dce198d3932 100644
--- a/arch/ppc64/kernel/setup.c
+++ b/arch/ppc64/kernel/setup.c
@@ -103,11 +103,6 @@ extern void unflatten_device_tree(void);
extern void smp_release_cpus(void);
-unsigned long decr_overclock = 1;
-unsigned long decr_overclock_proc0 = 1;
-unsigned long decr_overclock_set = 0;
-unsigned long decr_overclock_proc0_set = 0;
-
int have_of = 1;
int boot_cpuid = 0;
int boot_cpuid_phys = 0;
@@ -1120,64 +1115,15 @@ void ppc64_dump_msg(unsigned int src, const char *msg)
printk("[dump]%04x %s\n", src, msg);
}
-int set_spread_lpevents( char * str )
-{
- /* The parameter is the number of processors to share in processing lp events */
- unsigned long i;
- unsigned long val = simple_strtoul( str, NULL, 0 );
- if ( ( val > 0 ) && ( val <= NR_CPUS ) ) {
- for ( i=1; i<val; ++i )
- paca[i].lpqueue_ptr = paca[0].lpqueue_ptr;
- printk("lpevent processing spread over %ld processors\n", val);
- }
- else
- printk("invalid spreaqd_lpevents %ld\n", val);
- return 1;
-}
-
/* This should only be called on processor 0 during calibrate decr */
void setup_default_decr(void)
{
struct paca_struct *lpaca = get_paca();
- if ( decr_overclock_set && !decr_overclock_proc0_set )
- decr_overclock_proc0 = decr_overclock;
-
- lpaca->default_decr = tb_ticks_per_jiffy / decr_overclock_proc0;
+ lpaca->default_decr = tb_ticks_per_jiffy;
lpaca->next_jiffy_update_tb = get_tb() + tb_ticks_per_jiffy;
}
-int set_decr_overclock_proc0( char * str )
-{
- unsigned long val = simple_strtoul( str, NULL, 0 );
- if ( ( val >= 1 ) && ( val <= 48 ) ) {
- decr_overclock_proc0_set = 1;
- decr_overclock_proc0 = val;
- printk("proc 0 decrementer overclock factor of %ld\n", val);
- }
- else
- printk("invalid proc 0 decrementer overclock factor of %ld\n", val);
- return 1;
-}
-
-int set_decr_overclock( char * str )
-{
- unsigned long val = simple_strtoul( str, NULL, 0 );
- if ( ( val >= 1 ) && ( val <= 48 ) ) {
- decr_overclock_set = 1;
- decr_overclock = val;
- printk("decrementer overclock factor of %ld\n", val);
- }
- else
- printk("invalid decrementer overclock factor of %ld\n", val);
- return 1;
-
-}
-
-__setup("spread_lpevents=", set_spread_lpevents );
-__setup("decr_overclock_proc0=", set_decr_overclock_proc0 );
-__setup("decr_overclock=", set_decr_overclock );
-
#ifndef CONFIG_PPC_ISERIES
/*
* This function can be used by platforms to "find" legacy serial ports.
diff --git a/arch/ppc64/kernel/signal.c b/arch/ppc64/kernel/signal.c
index a95a2b49a1d..bf782276984 100644
--- a/arch/ppc64/kernel/signal.c
+++ b/arch/ppc64/kernel/signal.c
@@ -42,11 +42,7 @@
#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-#ifndef MIN
-#define MIN(a,b) (((a) < (b)) ? (a) : (b))
-#endif
-
-#define GP_REGS_SIZE MIN(sizeof(elf_gregset_t), sizeof(struct pt_regs))
+#define GP_REGS_SIZE min(sizeof(elf_gregset_t), sizeof(struct pt_regs))
#define FP_REGS_SIZE sizeof(elf_fpregset_t)
#define TRAMP_TRACEBACK 3
diff --git a/arch/ppc64/kernel/smp.c b/arch/ppc64/kernel/smp.c
index 3b906cd9403..9ef5d36d6b2 100644
--- a/arch/ppc64/kernel/smp.c
+++ b/arch/ppc64/kernel/smp.c
@@ -334,7 +334,6 @@ void smp_call_function_interrupt(void)
}
}
-extern unsigned long decr_overclock;
extern struct gettimeofday_struct do_gtod;
struct thread_info *current_set[NR_CPUS];
@@ -491,7 +490,7 @@ int __devinit __cpu_up(unsigned int cpu)
if (smp_ops->cpu_bootable && !smp_ops->cpu_bootable(cpu))
return -EINVAL;
- paca[cpu].default_decr = tb_ticks_per_jiffy / decr_overclock;
+ paca[cpu].default_decr = tb_ticks_per_jiffy;
if (!cpu_has_feature(CPU_FTR_SLB)) {
void *tmp;
diff --git a/arch/ppc64/kernel/sys_ppc32.c b/arch/ppc64/kernel/sys_ppc32.c
index 7cf7a960002..9c8e317c598 100644
--- a/arch/ppc64/kernel/sys_ppc32.c
+++ b/arch/ppc64/kernel/sys_ppc32.c
@@ -791,31 +791,6 @@ asmlinkage int sys32_pciconfig_iobase(u32 which, u32 in_bus, u32 in_devfn)
}
-asmlinkage int ppc64_newuname(struct new_utsname __user * name)
-{
- int errno = sys_newuname(name);
-
- if (current->personality == PER_LINUX32 && !errno) {
- if(copy_to_user(name->machine, "ppc\0\0", 8)) {
- errno = -EFAULT;
- }
- }
- return errno;
-}
-
-asmlinkage int ppc64_personality(unsigned long personality)
-{
- int ret;
- if (current->personality == PER_LINUX32 && personality == PER_LINUX)
- personality = PER_LINUX32;
- ret = sys_personality(personality);
- if (ret == PER_LINUX32)
- ret = PER_LINUX;
- return ret;
-}
-
-
-
/* Note: it is necessary to treat mode as an unsigned int,
* with the corresponding cast to a signed int to insure that the
* proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
@@ -1158,26 +1133,47 @@ asmlinkage long sys32_sysctl(struct __sysctl_args32 __user *args)
}
#endif
+asmlinkage int sys32_uname(struct old_utsname __user * name)
+{
+ int err = 0;
+
+ down_read(&uts_sem);
+ if (copy_to_user(name, &system_utsname, sizeof(*name)))
+ err = -EFAULT;
+ up_read(&uts_sem);
+ if (!err && personality(current->personality) == PER_LINUX32) {
+ /* change "ppc64" to "ppc" */
+ if (__put_user(0, name->machine + 3)
+ || __put_user(0, name->machine + 4))
+ err = -EFAULT;
+ }
+ return err;
+}
+
asmlinkage int sys32_olduname(struct oldold_utsname __user * name)
{
int error;
-
- if (!name)
- return -EFAULT;
+
if (!access_ok(VERIFY_WRITE,name,sizeof(struct oldold_utsname)))
return -EFAULT;
down_read(&uts_sem);
error = __copy_to_user(&name->sysname,&system_utsname.sysname,__OLD_UTS_LEN);
- error -= __put_user(0,name->sysname+__OLD_UTS_LEN);
- error -= __copy_to_user(&name->nodename,&system_utsname.nodename,__OLD_UTS_LEN);
- error -= __put_user(0,name->nodename+__OLD_UTS_LEN);
- error -= __copy_to_user(&name->release,&system_utsname.release,__OLD_UTS_LEN);
- error -= __put_user(0,name->release+__OLD_UTS_LEN);
- error -= __copy_to_user(&name->version,&system_utsname.version,__OLD_UTS_LEN);
- error -= __put_user(0,name->version+__OLD_UTS_LEN);
- error -= __copy_to_user(&name->machine,&system_utsname.machine,__OLD_UTS_LEN);
- error = __put_user(0,name->machine+__OLD_UTS_LEN);
+ error |= __put_user(0,name->sysname+__OLD_UTS_LEN);
+ error |= __copy_to_user(&name->nodename,&system_utsname.nodename,__OLD_UTS_LEN);
+ error |= __put_user(0,name->nodename+__OLD_UTS_LEN);
+ error |= __copy_to_user(&name->release,&system_utsname.release,__OLD_UTS_LEN);
+ error |= __put_user(0,name->release+__OLD_UTS_LEN);
+ error |= __copy_to_user(&name->version,&system_utsname.version,__OLD_UTS_LEN);
+ error |= __put_user(0,name->version+__OLD_UTS_LEN);
+ error |= __copy_to_user(&name->machine,&system_utsname.machine,__OLD_UTS_LEN);
+ error |= __put_user(0,name->machine+__OLD_UTS_LEN);
+ if (personality(current->personality) == PER_LINUX32) {
+ /* change "ppc64" to "ppc" */
+ error |= __put_user(0, name->machine + 3);
+ error |= __put_user(0, name->machine + 4);
+ }
+
up_read(&uts_sem);
error = error ? -EFAULT : 0;
diff --git a/arch/ppc64/kernel/syscalls.c b/arch/ppc64/kernel/syscalls.c
index f2865ff8d2f..a8cbb202b8c 100644
--- a/arch/ppc64/kernel/syscalls.c
+++ b/arch/ppc64/kernel/syscalls.c
@@ -199,24 +199,33 @@ out:
return ret;
}
-static int __init set_fakeppc(char *str)
+long ppc64_personality(unsigned long personality)
{
- if (*str)
- return 0;
- init_task.personality = PER_LINUX32;
- return 1;
+ long ret;
+
+ if (personality(current->personality) == PER_LINUX32
+ && personality == PER_LINUX)
+ personality = PER_LINUX32;
+ ret = sys_personality(personality);
+ if (ret == PER_LINUX32)
+ ret = PER_LINUX;
+ return ret;
}
-__setup("fakeppc", set_fakeppc);
-asmlinkage int sys_uname(struct old_utsname __user * name)
+long ppc64_newuname(struct new_utsname __user * name)
{
- int err = -EFAULT;
-
+ int err = 0;
+
down_read(&uts_sem);
- if (name && !copy_to_user(name, &system_utsname, sizeof (*name)))
- err = 0;
+ if (copy_to_user(name, &system_utsname, sizeof(*name)))
+ err = -EFAULT;
up_read(&uts_sem);
-
+ if (!err && personality(current->personality) == PER_LINUX32) {
+ /* change ppc64 to ppc */
+ if (__put_user(0, name->machine + 3)
+ || __put_user(0, name->machine + 4))
+ err = -EFAULT;
+ }
return err;
}
diff --git a/arch/ppc64/kernel/sysfs.c b/arch/ppc64/kernel/sysfs.c
index 0925694c3ce..c8fa6569b2f 100644
--- a/arch/ppc64/kernel/sysfs.c
+++ b/arch/ppc64/kernel/sysfs.c
@@ -113,7 +113,6 @@ void ppc64_enable_pmcs(void)
#ifdef CONFIG_PPC_PSERIES
unsigned long set, reset;
int ret;
- unsigned int ctrl;
#endif /* CONFIG_PPC_PSERIES */
/* Only need to enable them once */
@@ -167,11 +166,8 @@ void ppc64_enable_pmcs(void)
* On SMT machines we have to set the run latch in the ctrl register
* in order to make PMC6 spin.
*/
- if (cpu_has_feature(CPU_FTR_SMT)) {
- ctrl = mfspr(CTRLF);
- ctrl |= RUNLATCH;
- mtspr(CTRLT, ctrl);
- }
+ if (cpu_has_feature(CPU_FTR_SMT))
+ ppc64_runlatch_on();
#endif /* CONFIG_PPC_PSERIES */
}
diff --git a/arch/ppc64/kernel/time.c b/arch/ppc64/kernel/time.c
index 772a465b49f..33364a7d2cd 100644
--- a/arch/ppc64/kernel/time.c
+++ b/arch/ppc64/kernel/time.c
@@ -325,9 +325,7 @@ int timer_interrupt(struct pt_regs * regs)
irq_enter();
-#ifndef CONFIG_PPC_ISERIES
profile_tick(CPU_PROFILING, regs);
-#endif
lpaca->lppaca.int_dword.fields.decr_int = 0;
@@ -515,6 +513,7 @@ void __init time_init(void)
do_gtod.varp = &do_gtod.vars[0];
do_gtod.var_idx = 0;
do_gtod.varp->tb_orig_stamp = tb_last_stamp;
+ get_paca()->next_jiffy_update_tb = tb_last_stamp + tb_ticks_per_jiffy;
do_gtod.varp->stamp_xsec = xtime.tv_sec * XSEC_PER_SEC;
do_gtod.tb_ticks_per_sec = tb_ticks_per_sec;
do_gtod.varp->tb_to_xs = tb_to_xs;
diff --git a/arch/ppc64/kernel/xics.c b/arch/ppc64/kernel/xics.c
index eedd1d3c2a1..879f39b90a3 100644
--- a/arch/ppc64/kernel/xics.c
+++ b/arch/ppc64/kernel/xics.c
@@ -432,6 +432,7 @@ void xics_cause_IPI(int cpu)
{
ops->qirr_info(cpu, IPI_PRIORITY);
}
+#endif /* CONFIG_SMP */
void xics_setup_cpu(void)
{
@@ -439,9 +440,17 @@ void xics_setup_cpu(void)
ops->cppr_info(cpu, 0xff);
iosync();
-}
-#endif /* CONFIG_SMP */
+ /*
+ * Put the calling processor into the GIQ. This is really only
+ * necessary from a secondary thread as the OF start-cpu interface
+ * performs this function for us on primary threads.
+ *
+ * XXX: undo of teardown on kexec needs this too, as may hotplug
+ */
+ rtas_set_indicator(GLOBAL_INTERRUPT_QUEUE,
+ (1UL << interrupt_server_size) - 1 - default_distrib_server, 1);
+}
void xics_init_IRQ(void)
{
@@ -563,8 +572,7 @@ nextnode:
for (; i < NR_IRQS; ++i)
get_irq_desc(i)->handler = &xics_pic;
- ops->cppr_info(boot_cpuid, 0xff);
- iosync();
+ xics_setup_cpu();
ppc64_boot_msg(0x21, "XICS Done");
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-26 20:25:56 +0000