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authorDavid Gibson <david@gibson.dropbear.id.au>2006-01-13 10:26:42 +1100
committerPaul Mackerras <paulus@samba.org>2006-01-13 21:17:39 +1100
commit3356bb9f7ba378a6e2709f9df95f4ea52111f4df (patch)
tree84f370df6e58cec63132f9acce492d585226e671 /arch
parente58c3495e6007af59382540bb21ee941e470d88d (diff)
[PATCH] powerpc: Remove lppaca structure from the PACA
At present the lppaca - the structure shared with the iSeries hypervisor and phyp - is contained within the PACA, our own low-level per-cpu structure. This doesn't have to be so, the patch below removes it, making a separate array of lppaca structures. This saves approximately 500*NR_CPUS bytes of image size and kernel memory, because we don't need aligning gap between the Linux and hypervisor portions of every PACA. On the other hand it means an extra level of dereference in many accesses to the lppaca. The patch also gets rid of several places where we assign the paca address to a local variable for no particular reason. Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/kernel/asm-offsets.c2
-rw-r--r--arch/powerpc/kernel/entry_64.S3
-rw-r--r--arch/powerpc/kernel/head_64.S25
-rw-r--r--arch/powerpc/kernel/irq.c12
-rw-r--r--arch/powerpc/kernel/lparcfg.c13
-rw-r--r--arch/powerpc/kernel/paca.c36
-rw-r--r--arch/powerpc/kernel/time.c2
-rw-r--r--arch/powerpc/lib/locks.c8
-rw-r--r--arch/powerpc/platforms/iseries/irq.c6
-rw-r--r--arch/powerpc/platforms/iseries/misc.S3
-rw-r--r--arch/powerpc/platforms/iseries/setup.c8
-rw-r--r--arch/powerpc/platforms/iseries/smp.c2
-rw-r--r--arch/powerpc/platforms/pseries/lpar.c4
-rw-r--r--arch/powerpc/platforms/pseries/setup.c20
14 files changed, 75 insertions, 69 deletions
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index 56399c5c931..840aad43a98 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -135,7 +135,7 @@ int main(void)
DEFINE(PACA_EXMC, offsetof(struct paca_struct, exmc));
DEFINE(PACA_EXSLB, offsetof(struct paca_struct, exslb));
DEFINE(PACAEMERGSP, offsetof(struct paca_struct, emergency_sp));
- DEFINE(PACALPPACA, offsetof(struct paca_struct, lppaca));
+ DEFINE(PACALPPACAPTR, offsetof(struct paca_struct, lppaca_ptr));
DEFINE(PACAHWCPUID, offsetof(struct paca_struct, hw_cpu_id));
DEFINE(LPPACASRR0, offsetof(struct lppaca, saved_srr0));
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index 4ba81e1b6bf..54203631886 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -511,7 +511,8 @@ restore:
cmpdi 0,r5,0
beq 4f
/* Check for pending interrupts (iSeries) */
- ld r3,PACALPPACA+LPPACAANYINT(r13)
+ ld r3,PACALPPACAPTR(r13)
+ ld r3,LPPACAANYINT(r3)
cmpdi r3,0
beq+ 4f /* skip do_IRQ if no interrupts */
diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
index b3718f3eb7b..30826846634 100644
--- a/arch/powerpc/kernel/head_64.S
+++ b/arch/powerpc/kernel/head_64.S
@@ -255,8 +255,9 @@ exception_marker:
#define EXCEPTION_PROLOG_ISERIES_2 \
mfmsr r10; \
- ld r11,PACALPPACA+LPPACASRR0(r13); \
- ld r12,PACALPPACA+LPPACASRR1(r13); \
+ ld r12,PACALPPACAPTR(r13); \
+ ld r11,LPPACASRR0(r12); \
+ ld r12,LPPACASRR1(r12); \
ori r10,r10,MSR_RI; \
mtmsrd r10,1
@@ -635,7 +636,8 @@ data_access_slb_iSeries:
std r12,PACA_EXSLB+EX_R12(r13)
mfspr r10,SPRN_SPRG1
std r10,PACA_EXSLB+EX_R13(r13)
- ld r12,PACALPPACA+LPPACASRR1(r13);
+ ld r12,PACALPPACAPTR(r13)
+ ld r12,LPPACASRR1(r12)
b .slb_miss_realmode
STD_EXCEPTION_ISERIES(0x400, instruction_access, PACA_EXGEN)
@@ -645,7 +647,8 @@ instruction_access_slb_iSeries:
mtspr SPRN_SPRG1,r13 /* save r13 */
mfspr r13,SPRN_SPRG3 /* get paca address into r13 */
std r3,PACA_EXSLB+EX_R3(r13)
- ld r3,PACALPPACA+LPPACASRR0(r13) /* get SRR0 value */
+ ld r3,PACALPPACAPTR(r13)
+ ld r3,LPPACASRR0(r3) /* get SRR0 value */
std r9,PACA_EXSLB+EX_R9(r13)
mfcr r9
#ifdef __DISABLED__
@@ -657,7 +660,8 @@ instruction_access_slb_iSeries:
std r12,PACA_EXSLB+EX_R12(r13)
mfspr r10,SPRN_SPRG1
std r10,PACA_EXSLB+EX_R13(r13)
- ld r12,PACALPPACA+LPPACASRR1(r13);
+ ld r12,PACALPPACAPTR(r13)
+ ld r12,LPPACASRR1(r12)
b .slb_miss_realmode
#ifdef __DISABLED__
@@ -746,7 +750,8 @@ iSeries_secondary_smp_loop:
.globl decrementer_iSeries_masked
decrementer_iSeries_masked:
li r11,1
- stb r11,PACALPPACA+LPPACADECRINT(r13)
+ ld r12,PACALPPACAPTR(r13)
+ stb r11,LPPACADECRINT(r12)
LOAD_REG_ADDRBASE(r12,tb_ticks_per_jiffy)
lwz r12,ADDROFF(tb_ticks_per_jiffy)(r12)
mtspr SPRN_DEC,r12
@@ -755,8 +760,9 @@ decrementer_iSeries_masked:
.globl hardware_interrupt_iSeries_masked
hardware_interrupt_iSeries_masked:
mtcrf 0x80,r9 /* Restore regs */
- ld r11,PACALPPACA+LPPACASRR0(r13)
- ld r12,PACALPPACA+LPPACASRR1(r13)
+ ld r12,PACALPPACAPTR(r13)
+ ld r11,LPPACASRR0(r12)
+ ld r12,LPPACASRR1(r12)
mtspr SPRN_SRR0,r11
mtspr SPRN_SRR1,r12
ld r9,PACA_EXGEN+EX_R9(r13)
@@ -995,7 +1001,8 @@ _GLOBAL(slb_miss_realmode)
ld r3,PACA_EXSLB+EX_R3(r13)
lwz r9,PACA_EXSLB+EX_CCR(r13) /* get saved CR */
#ifdef CONFIG_PPC_ISERIES
- ld r11,PACALPPACA+LPPACASRR0(r13) /* get SRR0 value */
+ ld r11,PACALPPACAPTR(r13)
+ ld r11,LPPACASRR0(r11) /* get SRR0 value */
#endif /* CONFIG_PPC_ISERIES */
mtlr r10
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 5651032d870..d1fffce86df 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -238,14 +238,10 @@ void do_IRQ(struct pt_regs *regs)
irq_exit();
#ifdef CONFIG_PPC_ISERIES
- {
- struct paca_struct *lpaca = get_paca();
-
- if (lpaca->lppaca.int_dword.fields.decr_int) {
- lpaca->lppaca.int_dword.fields.decr_int = 0;
- /* Signal a fake decrementer interrupt */
- timer_interrupt(regs);
- }
+ if (get_lppaca()->int_dword.fields.decr_int) {
+ get_lppaca()->int_dword.fields.decr_int = 0;
+ /* Signal a fake decrementer interrupt */
+ timer_interrupt(regs);
}
#endif
}
diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c
index 9dda16ccde7..1ae96a8ed7e 100644
--- a/arch/powerpc/kernel/lparcfg.c
+++ b/arch/powerpc/kernel/lparcfg.c
@@ -55,15 +55,13 @@ static unsigned long get_purr(void)
{
unsigned long sum_purr = 0;
int cpu;
- struct paca_struct *lpaca;
for_each_cpu(cpu) {
- lpaca = paca + cpu;
- sum_purr += lpaca->lppaca.emulated_time_base;
+ sum_purr += lppaca[cpu].emulated_time_base;
#ifdef PURR_DEBUG
printk(KERN_INFO "get_purr for cpu (%d) has value (%ld) \n",
- cpu, lpaca->lppaca.emulated_time_base);
+ cpu, lppaca[cpu].emulated_time_base);
#endif
}
return sum_purr;
@@ -79,12 +77,11 @@ static int lparcfg_data(struct seq_file *m, void *v)
unsigned long pool_id, lp_index;
int shared, entitled_capacity, max_entitled_capacity;
int processors, max_processors;
- struct paca_struct *lpaca = get_paca();
unsigned long purr = get_purr();
seq_printf(m, "%s %s \n", MODULE_NAME, MODULE_VERS);
- shared = (int)(lpaca->lppaca_ptr->shared_proc);
+ shared = (int)(get_lppaca()->shared_proc);
seq_printf(m, "serial_number=%c%c%c%c%c%c%c\n",
e2a(xItExtVpdPanel.mfgID[2]),
e2a(xItExtVpdPanel.mfgID[3]),
@@ -402,7 +399,7 @@ static int lparcfg_data(struct seq_file *m, void *v)
(h_resource >> 0 * 8) & 0xffff);
/* pool related entries are apropriate for shared configs */
- if (paca[0].lppaca.shared_proc) {
+ if (lppaca[0].shared_proc) {
h_pic(&pool_idle_time, &pool_procs);
@@ -451,7 +448,7 @@ static int lparcfg_data(struct seq_file *m, void *v)
seq_printf(m, "partition_potential_processors=%d\n",
partition_potential_processors);
- seq_printf(m, "shared_processor_mode=%d\n", paca[0].lppaca.shared_proc);
+ seq_printf(m, "shared_processor_mode=%d\n", lppaca[0].shared_proc);
return 0;
}
diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c
index 999bdd81676..5d1b708086b 100644
--- a/arch/powerpc/kernel/paca.c
+++ b/arch/powerpc/kernel/paca.c
@@ -25,6 +25,28 @@
* field correctly */
extern unsigned long __toc_start;
+/*
+ * iSeries structure which the hypervisor knows about - this structure
+ * should not cross a page boundary. The vpa_init/register_vpa call
+ * is now known to fail if the lppaca structure crosses a page
+ * boundary. The lppaca is also used on POWER5 pSeries boxes. The
+ * lppaca is 640 bytes long, and cannot readily change since the
+ * hypervisor knows its layout, so a 1kB alignment will suffice to
+ * ensure that it doesn't cross a page boundary.
+ */
+struct lppaca lppaca[] = {
+ [0 ... (NR_CPUS-1)] = {
+ .desc = 0xd397d781, /* "LpPa" */
+ .size = sizeof(struct lppaca),
+ .dyn_proc_status = 2,
+ .decr_val = 0x00ff0000,
+ .fpregs_in_use = 1,
+ .end_of_quantum = 0xfffffffffffffffful,
+ .slb_count = 64,
+ .vmxregs_in_use = 0,
+ },
+};
+
/* The Paca is an array with one entry per processor. Each contains an
* lppaca, which contains the information shared between the
* hypervisor and Linux.
@@ -35,27 +57,17 @@ extern unsigned long __toc_start;
* processor (not thread).
*/
#define PACA_INIT_COMMON(number, start, asrr, asrv) \
+ .lppaca_ptr = &lppaca[number], \
.lock_token = 0x8000, \
.paca_index = (number), /* Paca Index */ \
.kernel_toc = (unsigned long)(&__toc_start) + 0x8000UL, \
.stab_real = (asrr), /* Real pointer to segment table */ \
.stab_addr = (asrv), /* Virt pointer to segment table */ \
.cpu_start = (start), /* Processor start */ \
- .hw_cpu_id = 0xffff, \
- .lppaca = { \
- .desc = 0xd397d781, /* "LpPa" */ \
- .size = sizeof(struct lppaca), \
- .dyn_proc_status = 2, \
- .decr_val = 0x00ff0000, \
- .fpregs_in_use = 1, \
- .end_of_quantum = 0xfffffffffffffffful, \
- .slb_count = 64, \
- .vmxregs_in_use = 0, \
- }, \
+ .hw_cpu_id = 0xffff,
#ifdef CONFIG_PPC_ISERIES
#define PACA_INIT_ISERIES(number) \
- .lppaca_ptr = &paca[number].lppaca, \
.reg_save_ptr = &iseries_reg_save[number],
#define PACA_INIT(number) \
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 56f50e91bdd..c4a294d657b 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -431,7 +431,7 @@ void timer_interrupt(struct pt_regs * regs)
profile_tick(CPU_PROFILING, regs);
#ifdef CONFIG_PPC_ISERIES
- get_paca()->lppaca.int_dword.fields.decr_int = 0;
+ get_lppaca()->int_dword.fields.decr_int = 0;
#endif
while ((ticks = tb_ticks_since(per_cpu(last_jiffy, cpu)))
diff --git a/arch/powerpc/lib/locks.c b/arch/powerpc/lib/locks.c
index 35bd03c41dd..8362fa272ca 100644
--- a/arch/powerpc/lib/locks.c
+++ b/arch/powerpc/lib/locks.c
@@ -28,15 +28,13 @@
void __spin_yield(raw_spinlock_t *lock)
{
unsigned int lock_value, holder_cpu, yield_count;
- struct paca_struct *holder_paca;
lock_value = lock->slock;
if (lock_value == 0)
return;
holder_cpu = lock_value & 0xffff;
BUG_ON(holder_cpu >= NR_CPUS);
- holder_paca = &paca[holder_cpu];
- yield_count = holder_paca->lppaca.yield_count;
+ yield_count = lppaca[holder_cpu].yield_count;
if ((yield_count & 1) == 0)
return; /* virtual cpu is currently running */
rmb();
@@ -60,15 +58,13 @@ void __rw_yield(raw_rwlock_t *rw)
{
int lock_value;
unsigned int holder_cpu, yield_count;
- struct paca_struct *holder_paca;
lock_value = rw->lock;
if (lock_value >= 0)
return; /* no write lock at present */
holder_cpu = lock_value & 0xffff;
BUG_ON(holder_cpu >= NR_CPUS);
- holder_paca = &paca[holder_cpu];
- yield_count = holder_paca->lppaca.yield_count;
+ yield_count = lppaca[holder_cpu].yield_count;
if ((yield_count & 1) == 0)
return; /* virtual cpu is currently running */
rmb();
diff --git a/arch/powerpc/platforms/iseries/irq.c b/arch/powerpc/platforms/iseries/irq.c
index 83442ea7747..be3fbfc24e6 100644
--- a/arch/powerpc/platforms/iseries/irq.c
+++ b/arch/powerpc/platforms/iseries/irq.c
@@ -334,14 +334,12 @@ int __init iSeries_allocate_IRQ(HvBusNumber bus,
*/
int iSeries_get_irq(struct pt_regs *regs)
{
- struct paca_struct *lpaca;
/* -2 means ignore this interrupt */
int irq = -2;
- lpaca = get_paca();
#ifdef CONFIG_SMP
- if (lpaca->lppaca.int_dword.fields.ipi_cnt) {
- lpaca->lppaca.int_dword.fields.ipi_cnt = 0;
+ if (get_lppaca()->int_dword.fields.ipi_cnt) {
+ get_lppaca()->int_dword.fields.ipi_cnt = 0;
iSeries_smp_message_recv(regs);
}
#endif /* CONFIG_SMP */
diff --git a/arch/powerpc/platforms/iseries/misc.S b/arch/powerpc/platforms/iseries/misc.S
index dfe7aa1ba09..7641fc7e550 100644
--- a/arch/powerpc/platforms/iseries/misc.S
+++ b/arch/powerpc/platforms/iseries/misc.S
@@ -44,7 +44,8 @@ _GLOBAL(local_irq_restore)
/* Check pending interrupts */
/* A decrementer, IPI or PMC interrupt may have occurred
* while we were in the hypervisor (which enables) */
- ld r4,PACALPPACA+LPPACAANYINT(r13)
+ ld r4,PACALPPACAPTR(r13)
+ ld r4,LPPACAANYINT(r4)
cmpdi r4,0
beqlr
diff --git a/arch/powerpc/platforms/iseries/setup.c b/arch/powerpc/platforms/iseries/setup.c
index c6bbe5c2510..3f8790146b0 100644
--- a/arch/powerpc/platforms/iseries/setup.c
+++ b/arch/powerpc/platforms/iseries/setup.c
@@ -538,7 +538,7 @@ static unsigned long __init build_iSeries_Memory_Map(void)
*/
static void __init iSeries_setup_arch(void)
{
- if (get_paca()->lppaca.shared_proc) {
+ if (get_lppaca()->shared_proc) {
ppc_md.idle_loop = iseries_shared_idle;
printk(KERN_INFO "Using shared processor idle loop\n");
} else {
@@ -647,7 +647,7 @@ static void yield_shared_processor(void)
* The decrementer stops during the yield. Force a fake decrementer
* here and let the timer_interrupt code sort out the actual time.
*/
- get_paca()->lppaca.int_dword.fields.decr_int = 1;
+ get_lppaca()->int_dword.fields.decr_int = 1;
process_iSeries_events();
}
@@ -883,7 +883,7 @@ void dt_cpus(struct iseries_flat_dt *dt)
pft_size[1] = __ilog2(HvCallHpt_getHptPages() * HW_PAGE_SIZE);
for (i = 0; i < NR_CPUS; i++) {
- if (paca[i].lppaca.dyn_proc_status >= 2)
+ if (lppaca[i].dyn_proc_status >= 2)
continue;
snprintf(p, 32 - (p - buf), "@%d", i);
@@ -891,7 +891,7 @@ void dt_cpus(struct iseries_flat_dt *dt)
dt_prop_str(dt, "device_type", "cpu");
- index = paca[i].lppaca.dyn_hv_phys_proc_index;
+ index = lppaca[i].dyn_hv_phys_proc_index;
d = &xIoHriProcessorVpd[index];
dt_prop_u32(dt, "i-cache-size", d->xInstCacheSize * 1024);
diff --git a/arch/powerpc/platforms/iseries/smp.c b/arch/powerpc/platforms/iseries/smp.c
index fcb094ec6ae..6f9d407a709 100644
--- a/arch/powerpc/platforms/iseries/smp.c
+++ b/arch/powerpc/platforms/iseries/smp.c
@@ -91,7 +91,7 @@ static void smp_iSeries_kick_cpu(int nr)
BUG_ON((nr < 0) || (nr >= NR_CPUS));
/* Verify that our partition has a processor nr */
- if (paca[nr].lppaca.dyn_proc_status >= 2)
+ if (lppaca[nr].dyn_proc_status >= 2)
return;
/* The processor is currently spinning, waiting
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c
index 1fe445ab78a..8952528d31a 100644
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -254,11 +254,11 @@ out:
void vpa_init(int cpu)
{
int hwcpu = get_hard_smp_processor_id(cpu);
- unsigned long vpa = __pa(&paca[cpu].lppaca);
+ unsigned long vpa = __pa(&lppaca[cpu]);
long ret;
if (cpu_has_feature(CPU_FTR_ALTIVEC))
- paca[cpu].lppaca.vmxregs_in_use = 1;
+ lppaca[cpu].vmxregs_in_use = 1;
ret = register_vpa(hwcpu, vpa);
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 68b7f086d63..da6cebaf72c 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -190,7 +190,7 @@ static void pseries_lpar_enable_pmcs(void)
/* instruct hypervisor to maintain PMCs */
if (firmware_has_feature(FW_FEATURE_SPLPAR))
- get_paca()->lppaca.pmcregs_in_use = 1;
+ get_lppaca()->pmcregs_in_use = 1;
}
static void __init pSeries_setup_arch(void)
@@ -234,7 +234,7 @@ static void __init pSeries_setup_arch(void)
/* Choose an idle loop */
if (firmware_has_feature(FW_FEATURE_SPLPAR)) {
vpa_init(boot_cpuid);
- if (get_paca()->lppaca.shared_proc) {
+ if (get_lppaca()->shared_proc) {
printk(KERN_INFO "Using shared processor idle loop\n");
ppc_md.idle_loop = pseries_shared_idle;
} else {
@@ -444,10 +444,10 @@ DECLARE_PER_CPU(unsigned long, smt_snooze_delay);
static inline void dedicated_idle_sleep(unsigned int cpu)
{
- struct paca_struct *ppaca = &paca[cpu ^ 1];
+ struct lppaca *plppaca = &lppaca[cpu ^ 1];
/* Only sleep if the other thread is not idle */
- if (!(ppaca->lppaca.idle)) {
+ if (!(plppaca->idle)) {
local_irq_disable();
/*
@@ -480,7 +480,6 @@ static inline void dedicated_idle_sleep(unsigned int cpu)
static void pseries_dedicated_idle(void)
{
- struct paca_struct *lpaca = get_paca();
unsigned int cpu = smp_processor_id();
unsigned long start_snooze;
unsigned long *smt_snooze_delay = &__get_cpu_var(smt_snooze_delay);
@@ -491,7 +490,7 @@ static void pseries_dedicated_idle(void)
* Indicate to the HV that we are idle. Now would be
* a good time to find other work to dispatch.
*/
- lpaca->lppaca.idle = 1;
+ get_lppaca()->idle = 1;
if (!need_resched()) {
start_snooze = get_tb() +
@@ -518,7 +517,7 @@ static void pseries_dedicated_idle(void)
HMT_medium();
}
- lpaca->lppaca.idle = 0;
+ get_lppaca()->idle = 0;
ppc64_runlatch_on();
preempt_enable_no_resched();
@@ -532,7 +531,6 @@ static void pseries_dedicated_idle(void)
static void pseries_shared_idle(void)
{
- struct paca_struct *lpaca = get_paca();
unsigned int cpu = smp_processor_id();
while (1) {
@@ -540,7 +538,7 @@ static void pseries_shared_idle(void)
* Indicate to the HV that we are idle. Now would be
* a good time to find other work to dispatch.
*/
- lpaca->lppaca.idle = 1;
+ get_lppaca()->idle = 1;
while (!need_resched() && !cpu_is_offline(cpu)) {
local_irq_disable();
@@ -564,7 +562,7 @@ static void pseries_shared_idle(void)
HMT_medium();
}
- lpaca->lppaca.idle = 0;
+ get_lppaca()->idle = 0;
ppc64_runlatch_on();
preempt_enable_no_resched();
@@ -588,7 +586,7 @@ static void pseries_kexec_cpu_down(int crash_shutdown, int secondary)
{
/* Don't risk a hypervisor call if we're crashing */
if (!crash_shutdown) {
- unsigned long vpa = __pa(&get_paca()->lppaca);
+ unsigned long vpa = __pa(get_lppaca());
if (unregister_vpa(hard_smp_processor_id(), vpa)) {
printk("VPA deregistration of cpu %u (hw_cpu_id %d) "