Commit 48ea7530 authored by Linus Torvalds's avatar Linus Torvalds
Browse files
parents 7c3dbbe9 dc86e88c
......@@ -113,7 +113,7 @@ CONFIG_IOSAPIC=y
CONFIG_IA64_SGI_SN_XP=m
CONFIG_FORCE_MAX_ZONEORDER=17
CONFIG_SMP=y
CONFIG_NR_CPUS=512
CONFIG_NR_CPUS=1024
# CONFIG_HOTPLUG_CPU is not set
CONFIG_SCHED_SMT=y
CONFIG_PREEMPT=y
......
......@@ -249,3 +249,32 @@ time_init (void)
*/
set_normalized_timespec(&wall_to_monotonic, -xtime.tv_sec, -xtime.tv_nsec);
}
#define SMALLUSECS 100
void
udelay (unsigned long usecs)
{
unsigned long start;
unsigned long cycles;
unsigned long smallusecs;
/*
* Execute the non-preemptible delay loop (because the ITC might
* not be synchronized between CPUS) in relatively short time
* chunks, allowing preemption between the chunks.
*/
while (usecs > 0) {
smallusecs = (usecs > SMALLUSECS) ? SMALLUSECS : usecs;
preempt_disable();
cycles = smallusecs*local_cpu_data->cyc_per_usec;
start = ia64_get_itc();
while (ia64_get_itc() - start < cycles)
cpu_relax();
preempt_enable();
usecs -= smallusecs;
}
}
EXPORT_SYMBOL(udelay);
......@@ -53,7 +53,7 @@ static void uncached_ipi_visibility(void *data)
if ((status != PAL_VISIBILITY_OK) &&
(status != PAL_VISIBILITY_OK_REMOTE_NEEDED))
printk(KERN_DEBUG "pal_prefetch_visibility() returns %i on "
"CPU %i\n", status, get_cpu());
"CPU %i\n", status, raw_smp_processor_id());
}
......@@ -63,7 +63,7 @@ static void uncached_ipi_mc_drain(void *data)
status = ia64_pal_mc_drain();
if (status)
printk(KERN_WARNING "ia64_pal_mc_drain() failed with %i on "
"CPU %i\n", status, get_cpu());
"CPU %i\n", status, raw_smp_processor_id());
}
......@@ -105,7 +105,7 @@ uncached_get_new_chunk(struct gen_pool *poolp)
status = ia64_pal_prefetch_visibility(PAL_VISIBILITY_PHYSICAL);
dprintk(KERN_INFO "pal_prefetch_visibility() returns %i on cpu %i\n",
status, get_cpu());
status, raw_smp_processor_id());
if (!status) {
status = smp_call_function(uncached_ipi_visibility, NULL, 0, 1);
......
......@@ -177,6 +177,9 @@ SECTIONS
}
. = ALIGN(PAGE_SIZE); /* make sure the gate page doesn't expose kernel data */
.data.read_mostly : AT(ADDR(.data.read_mostly) - LOAD_OFFSET)
{ *(.data.read_mostly) }
.data.cacheline_aligned : AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET)
{ *(.data.cacheline_aligned) }
......
......@@ -202,7 +202,7 @@ sn2_global_tlb_purge(struct mm_struct *mm, unsigned long start,
unsigned long end, unsigned long nbits)
{
int i, opt, shub1, cnode, mynasid, cpu, lcpu = 0, nasid, flushed = 0;
int mymm = (mm == current->active_mm);
int mymm = (mm == current->active_mm && current->mm);
volatile unsigned long *ptc0, *ptc1;
unsigned long itc, itc2, flags, data0 = 0, data1 = 0, rr_value;
short nasids[MAX_NUMNODES], nix;
......
......@@ -84,14 +84,6 @@ __delay (unsigned long loops)
ia64_delay_loop (loops - 1);
}
static __inline__ void
udelay (unsigned long usecs)
{
unsigned long start = ia64_get_itc();
unsigned long cycles = usecs*local_cpu_data->cyc_per_usec;
while (ia64_get_itc() - start < cycles)
cpu_relax();
}
extern void udelay (unsigned long usecs);
#endif /* _ASM_IA64_DELAY_H */
......@@ -13,7 +13,7 @@
#define SMP_CACHE_BYTES L1_CACHE_BYTES
#endif
#if defined(CONFIG_X86) || defined(CONFIG_SPARC64)
#if defined(CONFIG_X86) || defined(CONFIG_SPARC64) || defined(CONFIG_IA64)
#define __read_mostly __attribute__((__section__(".data.read_mostly")))
#else
#define __read_mostly
......
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