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authorGreg Kroah-Hartman <gregkh@suse.de>2006-08-23 21:08:12 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2006-08-23 21:08:12 -0700
commitccc712fe6b2acbafe9fc31f765a193e3249ca4a1 (patch)
tree9e1a4052a69203baf1e866af4536ca9ceb904fa6 /arch/powerpc/kernel
parent9c637646dafd82370c284ce7fcc8b4ba2546dfb1 (diff)
parentc9169f8747bb282cbe518132bf7d49755a00b6c1 (diff)
Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
Diffstat (limited to 'arch/powerpc/kernel')
-rw-r--r--arch/powerpc/kernel/legacy_serial.c8
-rw-r--r--arch/powerpc/kernel/prom_parse.c13
-rw-r--r--arch/powerpc/kernel/time.c25
-rw-r--r--arch/powerpc/kernel/traps.c8
4 files changed, 34 insertions, 20 deletions
diff --git a/arch/powerpc/kernel/legacy_serial.c b/arch/powerpc/kernel/legacy_serial.c
index 359ab89748e..40a39291861 100644
--- a/arch/powerpc/kernel/legacy_serial.c
+++ b/arch/powerpc/kernel/legacy_serial.c
@@ -115,6 +115,7 @@ static int __init add_legacy_soc_port(struct device_node *np,
u64 addr;
u32 *addrp;
upf_t flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_SHARE_IRQ;
+ struct device_node *tsi = of_get_parent(np);
/* We only support ports that have a clock frequency properly
* encoded in the device-tree.
@@ -134,7 +135,10 @@ static int __init add_legacy_soc_port(struct device_node *np,
/* Add port, irq will be dealt with later. We passed a translated
* IO port value. It will be fixed up later along with the irq
*/
- return add_legacy_port(np, -1, UPIO_MEM, addr, addr, NO_IRQ, flags, 0);
+ if (tsi && !strcmp(tsi->type, "tsi-bridge"))
+ return add_legacy_port(np, -1, UPIO_TSI, addr, addr, NO_IRQ, flags, 0);
+ else
+ return add_legacy_port(np, -1, UPIO_MEM, addr, addr, NO_IRQ, flags, 0);
}
static int __init add_legacy_isa_port(struct device_node *np,
@@ -464,7 +468,7 @@ static int __init serial_dev_init(void)
fixup_port_irq(i, np, port);
if (port->iotype == UPIO_PORT)
fixup_port_pio(i, np, port);
- if (port->iotype == UPIO_MEM)
+ if ((port->iotype == UPIO_MEM) || (port->iotype == UPIO_TSI))
fixup_port_mmio(i, np, port);
}
diff --git a/arch/powerpc/kernel/prom_parse.c b/arch/powerpc/kernel/prom_parse.c
index 6a7e997c401..11052c212ad 100644
--- a/arch/powerpc/kernel/prom_parse.c
+++ b/arch/powerpc/kernel/prom_parse.c
@@ -598,11 +598,6 @@ static struct device_node *of_irq_find_parent(struct device_node *child)
return p;
}
-static u8 of_irq_pci_swizzle(u8 slot, u8 pin)
-{
- return (((pin - 1) + slot) % 4) + 1;
-}
-
/* This doesn't need to be called if you don't have any special workaround
* flags to pass
*/
@@ -891,6 +886,12 @@ int of_irq_map_one(struct device_node *device, int index, struct of_irq *out_irq
}
EXPORT_SYMBOL_GPL(of_irq_map_one);
+#ifdef CONFIG_PCI
+static u8 of_irq_pci_swizzle(u8 slot, u8 pin)
+{
+ return (((pin - 1) + slot) % 4) + 1;
+}
+
int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq)
{
struct device_node *dn, *ppnode;
@@ -967,4 +968,4 @@ int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq)
return of_irq_map_raw(ppnode, &lspec, laddr, out_irq);
}
EXPORT_SYMBOL_GPL(of_irq_map_pci);
-
+#endif /* CONFIG_PCI */
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 774c0a3c501..18e59e43d2b 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -417,7 +417,7 @@ static __inline__ void timer_check_rtc(void)
/*
* This version of gettimeofday has microsecond resolution.
*/
-static inline void __do_gettimeofday(struct timeval *tv, u64 tb_val)
+static inline void __do_gettimeofday(struct timeval *tv)
{
unsigned long sec, usec;
u64 tb_ticks, xsec;
@@ -431,7 +431,12 @@ static inline void __do_gettimeofday(struct timeval *tv, u64 tb_val)
* without a divide (and in fact, without a multiply)
*/
temp_varp = do_gtod.varp;
- tb_ticks = tb_val - temp_varp->tb_orig_stamp;
+
+ /* Sampling the time base must be done after loading
+ * do_gtod.varp in order to avoid racing with update_gtod.
+ */
+ data_barrier(temp_varp);
+ tb_ticks = get_tb() - temp_varp->tb_orig_stamp;
temp_tb_to_xs = temp_varp->tb_to_xs;
temp_stamp_xsec = temp_varp->stamp_xsec;
xsec = temp_stamp_xsec + mulhdu(tb_ticks, temp_tb_to_xs);
@@ -464,7 +469,7 @@ void do_gettimeofday(struct timeval *tv)
tv->tv_usec = usec;
return;
}
- __do_gettimeofday(tv, get_tb());
+ __do_gettimeofday(tv);
}
EXPORT_SYMBOL(do_gettimeofday);
@@ -650,6 +655,7 @@ void timer_interrupt(struct pt_regs * regs)
int next_dec;
int cpu = smp_processor_id();
unsigned long ticks;
+ u64 tb_next_jiffy;
#ifdef CONFIG_PPC32
if (atomic_read(&ppc_n_lost_interrupts) != 0)
@@ -691,11 +697,14 @@ void timer_interrupt(struct pt_regs * regs)
continue;
write_seqlock(&xtime_lock);
- tb_last_jiffy += tb_ticks_per_jiffy;
- tb_last_stamp = per_cpu(last_jiffy, cpu);
- do_timer(regs);
- timer_recalc_offset(tb_last_jiffy);
- timer_check_rtc();
+ tb_next_jiffy = tb_last_jiffy + tb_ticks_per_jiffy;
+ if (per_cpu(last_jiffy, cpu) >= tb_next_jiffy) {
+ tb_last_jiffy = tb_next_jiffy;
+ tb_last_stamp = per_cpu(last_jiffy, cpu);
+ do_timer(regs);
+ timer_recalc_offset(tb_last_jiffy);
+ timer_check_rtc();
+ }
write_sequnlock(&xtime_lock);
}
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index e4d1713e8ae..9b352bd0a46 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -585,14 +585,14 @@ static void parse_fpe(struct pt_regs *regs)
#define INST_MFSPR_PVR_MASK 0xfc1fffff
#define INST_DCBA 0x7c0005ec
-#define INST_DCBA_MASK 0x7c0007fe
+#define INST_DCBA_MASK 0xfc0007fe
#define INST_MCRXR 0x7c000400
-#define INST_MCRXR_MASK 0x7c0007fe
+#define INST_MCRXR_MASK 0xfc0007fe
#define INST_STRING 0x7c00042a
-#define INST_STRING_MASK 0x7c0007fe
-#define INST_STRING_GEN_MASK 0x7c00067e
+#define INST_STRING_MASK 0xfc0007fe
+#define INST_STRING_GEN_MASK 0xfc00067e
#define INST_LSWI 0x7c0004aa
#define INST_LSWX 0x7c00042a
#define INST_STSWI 0x7c0005aa