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SGI UV: clean up arch/x86/kernel/tlb_uv.c 

Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Ingo Molnar 2008-06-18 14:28:19 +02:00
parent dc163a41ff
commit b4c286e6af
1 changed files with 62 additions and 45 deletions
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107
arch/x86/kernel/tlb_uv.c
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@ -11,19 +11,22 @@
#include <linux/kernel.h> #include <linux/kernel.h>
#include <asm/mmu_context.h> #include <asm/mmu_context.h>
#include <asm/idle.h>
#include <asm/genapic.h>
#include <asm/uv/uv_hub.h>
#include <asm/uv/uv_mmrs.h> #include <asm/uv/uv_mmrs.h>
#include <asm/uv/uv_hub.h>
#include <asm/uv/uv_bau.h> #include <asm/uv/uv_bau.h>
#include <asm/genapic.h>
#include <asm/idle.h>
#include <asm/tsc.h> #include <asm/tsc.h>
#include <mach_apic.h> #include <mach_apic.h>
static struct bau_control **uv_bau_table_bases __read_mostly; static struct bau_control **uv_bau_table_bases __read_mostly;
static int uv_bau_retry_limit __read_mostly; static int uv_bau_retry_limit __read_mostly;
static int uv_nshift __read_mostly; /* position of pnode (which is nasid>>1) */
static unsigned long uv_mmask __read_mostly; /* position of pnode (which is nasid>>1): */
static int uv_nshift __read_mostly;
static unsigned long uv_mmask __read_mostly;
static DEFINE_PER_CPU(struct ptc_stats, ptcstats); static DEFINE_PER_CPU(struct ptc_stats, ptcstats);
static DEFINE_PER_CPU(struct bau_control, bau_control); static DEFINE_PER_CPU(struct bau_control, bau_control);
@ -37,8 +40,8 @@ static DEFINE_PER_CPU(struct bau_control, bau_control);
* be sent (the hardware will only do one reply per message). * be sent (the hardware will only do one reply per message).
*/ */
static void uv_reply_to_message(int resource, static void uv_reply_to_message(int resource,
struct bau_payload_queue_entry *msg, struct bau_payload_queue_entry *msg,
struct bau_msg_status *msp) struct bau_msg_status *msp)
{ {
unsigned long dw; unsigned long dw;
@ -55,11 +58,11 @@ static void uv_reply_to_message(int resource,
* Other cpu's may come here at the same time for this message. * Other cpu's may come here at the same time for this message.
*/ */
static void uv_bau_process_message(struct bau_payload_queue_entry *msg, static void uv_bau_process_message(struct bau_payload_queue_entry *msg,
int msg_slot, int sw_ack_slot) int msg_slot, int sw_ack_slot)
{ {
int cpu;
unsigned long this_cpu_mask; unsigned long this_cpu_mask;
struct bau_msg_status *msp; struct bau_msg_status *msp;
int cpu;
msp = __get_cpu_var(bau_control).msg_statuses + msg_slot; msp = __get_cpu_var(bau_control).msg_statuses + msg_slot;
cpu = uv_blade_processor_id(); cpu = uv_blade_processor_id();
@ -96,11 +99,11 @@ static void uv_bau_process_message(struct bau_payload_queue_entry *msg,
*/ */
static int uv_examine_destination(struct bau_control *bau_tablesp, int sender) static int uv_examine_destination(struct bau_control *bau_tablesp, int sender)
{ {
int i;
int j;
int count = 0;
struct bau_payload_queue_entry *msg; struct bau_payload_queue_entry *msg;
struct bau_msg_status *msp; struct bau_msg_status *msp;
int count = 0;
int i;
int j;
for (msg = bau_tablesp->va_queue_first, i = 0; i < DEST_Q_SIZE; for (msg = bau_tablesp->va_queue_first, i = 0; i < DEST_Q_SIZE;
msg++, i++) { msg++, i++) {
@ -111,7 +114,7 @@ static int uv_examine_destination(struct bau_control *bau_tablesp, int sender)
i, msg->address, msg->acknowledge_count, i, msg->address, msg->acknowledge_count,
msg->number_of_cpus); msg->number_of_cpus);
for (j = 0; j < msg->number_of_cpus; j++) { for (j = 0; j < msg->number_of_cpus; j++) {
if (!((long)1 << j & msp-> seen_by.bits)) { if (!((1L << j) & msp->seen_by.bits)) {
count++; count++;
printk("%d ", j); printk("%d ", j);
} }
@ -135,8 +138,7 @@ static int uv_examine_destinations(struct bau_target_nodemask *distribution)
int count = 0; int count = 0;
sender = smp_processor_id(); sender = smp_processor_id();
for (i = 0; i < (sizeof(struct bau_target_nodemask) * BITSPERBYTE); for (i = 0; i < sizeof(struct bau_target_nodemask) * BITSPERBYTE; i++) {
i++) {
if (!bau_node_isset(i, distribution)) if (!bau_node_isset(i, distribution))
continue; continue;
count += uv_examine_destination(uv_bau_table_bases[i], sender); count += uv_examine_destination(uv_bau_table_bases[i], sender);
@ -217,11 +219,11 @@ int uv_flush_send_and_wait(int cpu, int this_blade, struct bau_desc *bau_desc,
{ {
int completion_status = 0; int completion_status = 0;
int right_shift; int right_shift;
int bit;
int blade;
int tries = 0; int tries = 0;
unsigned long index; int blade;
int bit;
unsigned long mmr_offset; unsigned long mmr_offset;
unsigned long index;
cycles_t time1; cycles_t time1;
cycles_t time2; cycles_t time2;
@ -294,7 +296,7 @@ int uv_flush_send_and_wait(int cpu, int this_blade, struct bau_desc *bau_desc,
* Returns 0 if some remote flushing remains to be done. * Returns 0 if some remote flushing remains to be done.
*/ */
int uv_flush_tlb_others(cpumask_t *cpumaskp, struct mm_struct *mm, int uv_flush_tlb_others(cpumask_t *cpumaskp, struct mm_struct *mm,
unsigned long va) unsigned long va)
{ {
int i; int i;
int bit; int bit;
@ -356,12 +358,12 @@ int uv_flush_tlb_others(cpumask_t *cpumaskp, struct mm_struct *mm,
*/ */
void uv_bau_message_interrupt(struct pt_regs *regs) void uv_bau_message_interrupt(struct pt_regs *regs)
{ {
struct bau_payload_queue_entry *pqp;
struct bau_payload_queue_entry *msg;
struct bau_payload_queue_entry *va_queue_first; struct bau_payload_queue_entry *va_queue_first;
struct bau_payload_queue_entry *va_queue_last; struct bau_payload_queue_entry *va_queue_last;
struct bau_payload_queue_entry *msg;
struct pt_regs *old_regs = set_irq_regs(regs); struct pt_regs *old_regs = set_irq_regs(regs);
cycles_t time1, time2; cycles_t time1;
cycles_t time2;
int msg_slot; int msg_slot;
int sw_ack_slot; int sw_ack_slot;
int fw; int fw;
@ -376,13 +378,14 @@ void uv_bau_message_interrupt(struct pt_regs *regs)
local_pnode = uv_blade_to_pnode(uv_numa_blade_id()); local_pnode = uv_blade_to_pnode(uv_numa_blade_id());
pqp = va_queue_first = __get_cpu_var(bau_control).va_queue_first; va_queue_first = __get_cpu_var(bau_control).va_queue_first;
va_queue_last = __get_cpu_var(bau_control).va_queue_last; va_queue_last = __get_cpu_var(bau_control).va_queue_last;
msg = __get_cpu_var(bau_control).bau_msg_head; msg = __get_cpu_var(bau_control).bau_msg_head;
while (msg->sw_ack_vector) { while (msg->sw_ack_vector) {
count++; count++;
fw = msg->sw_ack_vector; fw = msg->sw_ack_vector;
msg_slot = msg - pqp; msg_slot = msg - va_queue_first;
sw_ack_slot = ffs(fw) - 1; sw_ack_slot = ffs(fw) - 1;
uv_bau_process_message(msg, msg_slot, sw_ack_slot); uv_bau_process_message(msg, msg_slot, sw_ack_slot);
@ -484,7 +487,7 @@ static int uv_ptc_seq_show(struct seq_file *file, void *data)
* >0: retry limit * >0: retry limit
*/ */
static ssize_t uv_ptc_proc_write(struct file *file, const char __user *user, static ssize_t uv_ptc_proc_write(struct file *file, const char __user *user,
size_t count, loff_t *data) size_t count, loff_t *data)
{ {
long newmode; long newmode;
char optstr[64]; char optstr[64];
@ -587,42 +590,48 @@ static struct bau_control * __init uv_table_bases_init(int blade, int node)
bau_tabp = bau_tabp =
kmalloc_node(sizeof(struct bau_control), GFP_KERNEL, node); kmalloc_node(sizeof(struct bau_control), GFP_KERNEL, node);
BUG_ON(!bau_tabp); BUG_ON(!bau_tabp);
bau_tabp->msg_statuses = bau_tabp->msg_statuses =
kmalloc_node(sizeof(struct bau_msg_status) * kmalloc_node(sizeof(struct bau_msg_status) *
DEST_Q_SIZE, GFP_KERNEL, node); DEST_Q_SIZE, GFP_KERNEL, node);
BUG_ON(!bau_tabp->msg_statuses); BUG_ON(!bau_tabp->msg_statuses);
for (i = 0, msp = bau_tabp->msg_statuses; i < DEST_Q_SIZE; i++, msp++) for (i = 0, msp = bau_tabp->msg_statuses; i < DEST_Q_SIZE; i++, msp++)
bau_cpubits_clear(&msp->seen_by, (int) bau_cpubits_clear(&msp->seen_by, (int)
uv_blade_nr_possible_cpus(blade)); uv_blade_nr_possible_cpus(blade));
bau_tabp->watching = bau_tabp->watching =
kmalloc_node(sizeof(int) * DEST_NUM_RESOURCES, GFP_KERNEL, node); kmalloc_node(sizeof(int) * DEST_NUM_RESOURCES, GFP_KERNEL, node);
BUG_ON(!bau_tabp->watching); BUG_ON(!bau_tabp->watching);
for (i = 0, ip = bau_tabp->watching; i < DEST_Q_SIZE; i++, ip++) {
for (i = 0, ip = bau_tabp->watching; i < DEST_Q_SIZE; i++, ip++)
*ip = 0; *ip = 0;
}
uv_bau_table_bases[blade] = bau_tabp; uv_bau_table_bases[blade] = bau_tabp;
return bau_tabsp; return bau_tabsp;
} }
/* /*
* finish the initialization of the per-blade control structures * finish the initialization of the per-blade control structures
*/ */
static void __init uv_table_bases_finish(int blade, int node, int cur_cpu, static void __init
struct bau_control *bau_tablesp, uv_table_bases_finish(int blade, int node, int cur_cpu,
struct bau_desc *adp) struct bau_control *bau_tablesp,
struct bau_desc *adp)
{ {
int i;
struct bau_control *bcp; struct bau_control *bcp;
int i;
for (i = cur_cpu; i < (cur_cpu + uv_blade_nr_possible_cpus(blade)); for (i = cur_cpu; i < cur_cpu + uv_blade_nr_possible_cpus(blade); i++) {
i++) {
bcp = (struct bau_control *)&per_cpu(bau_control, i); bcp = (struct bau_control *)&per_cpu(bau_control, i);
bcp->bau_msg_head = bau_tablesp->va_queue_first;
bcp->va_queue_first = bau_tablesp->va_queue_first; bcp->bau_msg_head = bau_tablesp->va_queue_first;
bcp->va_queue_last = bau_tablesp->va_queue_last; bcp->va_queue_first = bau_tablesp->va_queue_first;
bcp->watching = bau_tablesp->watching; bcp->va_queue_last = bau_tablesp->va_queue_last;
bcp->msg_statuses = bau_tablesp->msg_statuses; bcp->watching = bau_tablesp->watching;
bcp->descriptor_base = adp; bcp->msg_statuses = bau_tablesp->msg_statuses;
bcp->descriptor_base = adp;
} }
} }
@ -643,14 +652,18 @@ uv_activation_descriptor_init(int node, int pnode)
adp = (struct bau_desc *) adp = (struct bau_desc *)
kmalloc_node(16384, GFP_KERNEL, node); kmalloc_node(16384, GFP_KERNEL, node);
BUG_ON(!adp); BUG_ON(!adp);
pa = __pa((unsigned long)adp); pa = __pa((unsigned long)adp);
n = pa >> uv_nshift; n = pa >> uv_nshift;
m = pa & uv_mmask; m = pa & uv_mmask;
mmr_image = uv_read_global_mmr64(pnode, UVH_LB_BAU_SB_DESCRIPTOR_BASE); mmr_image = uv_read_global_mmr64(pnode, UVH_LB_BAU_SB_DESCRIPTOR_BASE);
if (mmr_image) if (mmr_image) {
uv_write_global_mmr64(pnode, (unsigned long) uv_write_global_mmr64(pnode, (unsigned long)
UVH_LB_BAU_SB_DESCRIPTOR_BASE, UVH_LB_BAU_SB_DESCRIPTOR_BASE,
(n << UV_DESC_BASE_PNODE_SHIFT | m)); (n << UV_DESC_BASE_PNODE_SHIFT | m));
}
for (i = 0, ad2 = adp; i < UV_ACTIVATION_DESCRIPTOR_SIZE; i++, ad2++) { for (i = 0, ad2 = adp; i < UV_ACTIVATION_DESCRIPTOR_SIZE; i++, ad2++) {
memset(ad2, 0, sizeof(struct bau_desc)); memset(ad2, 0, sizeof(struct bau_desc));
ad2->header.sw_ack_flag = 1; ad2->header.sw_ack_flag = 1;
@ -669,16 +682,17 @@ uv_activation_descriptor_init(int node, int pnode)
/* /*
* initialize the destination side's receiving buffers * initialize the destination side's receiving buffers
*/ */
static struct bau_payload_queue_entry * __init uv_payload_queue_init(int node, static struct bau_payload_queue_entry * __init
int pnode, struct bau_control *bau_tablesp) uv_payload_queue_init(int node, int pnode, struct bau_control *bau_tablesp)
{ {
char *cp;
struct bau_payload_queue_entry *pqp; struct bau_payload_queue_entry *pqp;
char *cp;
pqp = (struct bau_payload_queue_entry *) kmalloc_node( pqp = (struct bau_payload_queue_entry *) kmalloc_node(
(DEST_Q_SIZE + 1) * sizeof(struct bau_payload_queue_entry), (DEST_Q_SIZE + 1) * sizeof(struct bau_payload_queue_entry),
GFP_KERNEL, node); GFP_KERNEL, node);
BUG_ON(!pqp); BUG_ON(!pqp);
cp = (char *)pqp + 31; cp = (char *)pqp + 31;
pqp = (struct bau_payload_queue_entry *)(((unsigned long)cp >> 5) << 5); pqp = (struct bau_payload_queue_entry *)(((unsigned long)cp >> 5) << 5);
bau_tablesp->va_queue_first = pqp; bau_tablesp->va_queue_first = pqp;
@ -694,6 +708,7 @@ static struct bau_payload_queue_entry * __init uv_payload_queue_init(int node,
(unsigned long) (unsigned long)
uv_physnodeaddr(bau_tablesp->va_queue_last)); uv_physnodeaddr(bau_tablesp->va_queue_last));
memset(pqp, 0, sizeof(struct bau_payload_queue_entry) * DEST_Q_SIZE); memset(pqp, 0, sizeof(struct bau_payload_queue_entry) * DEST_Q_SIZE);
return pqp; return pqp;
} }
@ -756,6 +771,7 @@ static int __init uv_bau_init(void)
uv_bau_table_bases = (struct bau_control **) uv_bau_table_bases = (struct bau_control **)
kmalloc(nblades * sizeof(struct bau_control *), GFP_KERNEL); kmalloc(nblades * sizeof(struct bau_control *), GFP_KERNEL);
BUG_ON(!uv_bau_table_bases); BUG_ON(!uv_bau_table_bases);
last_blade = -1; last_blade = -1;
for_each_online_node(node) { for_each_online_node(node) {
blade = uv_node_to_blade_id(node); blade = uv_node_to_blade_id(node);
@ -767,6 +783,7 @@ static int __init uv_bau_init(void)
} }
set_intr_gate(UV_BAU_MESSAGE, uv_bau_message_intr1); set_intr_gate(UV_BAU_MESSAGE, uv_bau_message_intr1);
uv_enable_timeouts(); uv_enable_timeouts();
return 0; return 0;
} }
__initcall(uv_bau_init); __initcall(uv_bau_init);