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Automatic merge of rsync://rsync.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6.git

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This commit is contained in:
Linus Torvalds 2005-04-27 10:05:42 -07:00
commit fc67b16eca
60 changed files with 5308 additions and 518 deletions
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2
arch/ia64/Kconfig
View file

@ -329,7 +329,7 @@ menu "Power management and ACPI"
config PM
bool "Power Management support"
depends on IA64_GENERIC || IA64_DIG || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB
depends on !IA64_HP_SIM
default y
help
"Power Management" means that parts of your computer are shut

2
arch/ia64/configs/sn2_defconfig
View file

@ -574,6 +574,8 @@ CONFIG_SERIAL_NONSTANDARD=y
# CONFIG_N_HDLC is not set
# CONFIG_STALDRV is not set
CONFIG_SGI_SNSC=y
CONFIG_SGI_TIOCX=y
CONFIG_SGI_MBCS=m
#
# Serial drivers

96
arch/ia64/hp/common/sba_iommu.c
View file

@ -1,9 +1,9 @@
/*
** IA64 System Bus Adapter (SBA) I/O MMU manager
**
** (c) Copyright 2002-2004 Alex Williamson
** (c) Copyright 2002-2005 Alex Williamson
** (c) Copyright 2002-2003 Grant Grundler
** (c) Copyright 2002-2004 Hewlett-Packard Company
** (c) Copyright 2002-2005 Hewlett-Packard Company
**
** Portions (c) 2000 Grant Grundler (from parisc I/O MMU code)
** Portions (c) 1999 Dave S. Miller (from sparc64 I/O MMU code)
@ -459,21 +459,32 @@ get_iovp_order (unsigned long size)
* sba_search_bitmap - find free space in IO PDIR resource bitmap
* @ioc: IO MMU structure which owns the pdir we are interested in.
* @bits_wanted: number of entries we need.
* @use_hint: use res_hint to indicate where to start looking
*
* Find consecutive free bits in resource bitmap.
* Each bit represents one entry in the IO Pdir.
* Cool perf optimization: search for log2(size) bits at a time.
*/
static SBA_INLINE unsigned long
sba_search_bitmap(struct ioc *ioc, unsigned long bits_wanted)
sba_search_bitmap(struct ioc *ioc, unsigned long bits_wanted, int use_hint)
{
unsigned long *res_ptr = ioc->res_hint;
unsigned long *res_ptr;
unsigned long *res_end = (unsigned long *) &(ioc->res_map[ioc->res_size]);
unsigned long pide = ~0UL;
unsigned long flags, pide = ~0UL;
ASSERT(((unsigned long) ioc->res_hint & (sizeof(unsigned long) - 1UL)) == 0);
ASSERT(res_ptr < res_end);
spin_lock_irqsave(&ioc->res_lock, flags);
/* Allow caller to force a search through the entire resource space */
if (likely(use_hint)) {
res_ptr = ioc->res_hint;
} else {
res_ptr = (ulong *)ioc->res_map;
ioc->res_bitshift = 0;
}
/*
* N.B. REO/Grande defect AR2305 can cause TLB fetch timeouts
* if a TLB entry is purged while in use. sba_mark_invalid()
@ -570,10 +581,12 @@ sba_search_bitmap(struct ioc *ioc, unsigned long bits_wanted)
prefetch(ioc->res_map);
ioc->res_hint = (unsigned long *) ioc->res_map;
ioc->res_bitshift = 0;
spin_unlock_irqrestore(&ioc->res_lock, flags);
return (pide);
found_it:
ioc->res_hint = res_ptr;
spin_unlock_irqrestore(&ioc->res_lock, flags);
return (pide);
}
@ -594,36 +607,36 @@ sba_alloc_range(struct ioc *ioc, size_t size)
unsigned long itc_start;
#endif
unsigned long pide;
unsigned long flags;
ASSERT(pages_needed);
ASSERT(0 == (size & ~iovp_mask));
spin_lock_irqsave(&ioc->res_lock, flags);
#ifdef PDIR_SEARCH_TIMING
itc_start = ia64_get_itc();
#endif
/*
** "seek and ye shall find"...praying never hurts either...
*/
pide = sba_search_bitmap(ioc, pages_needed);
pide = sba_search_bitmap(ioc, pages_needed, 1);
if (unlikely(pide >= (ioc->res_size << 3))) {
pide = sba_search_bitmap(ioc, pages_needed);
pide = sba_search_bitmap(ioc, pages_needed, 0);
if (unlikely(pide >= (ioc->res_size << 3))) {
#if DELAYED_RESOURCE_CNT > 0
unsigned long flags;
/*
** With delayed resource freeing, we can give this one more shot. We're
** getting close to being in trouble here, so do what we can to make this
** one count.
*/
spin_lock(&ioc->saved_lock);
spin_lock_irqsave(&ioc->saved_lock, flags);
if (ioc->saved_cnt > 0) {
struct sba_dma_pair *d;
int cnt = ioc->saved_cnt;
d = &(ioc->saved[ioc->saved_cnt]);
d = &(ioc->saved[ioc->saved_cnt - 1]);
spin_lock(&ioc->res_lock);
while (cnt--) {
sba_mark_invalid(ioc, d->iova, d->size);
sba_free_range(ioc, d->iova, d->size);
@ -631,10 +644,11 @@ sba_alloc_range(struct ioc *ioc, size_t size)
}
ioc->saved_cnt = 0;
READ_REG(ioc->ioc_hpa+IOC_PCOM); /* flush purges */
spin_unlock(&ioc->res_lock);
}
spin_unlock(&ioc->saved_lock);
spin_unlock_irqrestore(&ioc->saved_lock, flags);
pide = sba_search_bitmap(ioc, pages_needed);
pide = sba_search_bitmap(ioc, pages_needed, 0);
if (unlikely(pide >= (ioc->res_size << 3)))
panic(__FILE__ ": I/O MMU @ %p is out of mapping resources\n",
ioc->ioc_hpa);
@ -664,8 +678,6 @@ sba_alloc_range(struct ioc *ioc, size_t size)
(uint) ((unsigned long) ioc->res_hint - (unsigned long) ioc->res_map),
ioc->res_bitshift );
spin_unlock_irqrestore(&ioc->res_lock, flags);
return (pide);
}
@ -950,6 +962,30 @@ sba_map_single(struct device *dev, void *addr, size_t size, int dir)
return SBA_IOVA(ioc, iovp, offset);
}
#ifdef ENABLE_MARK_CLEAN
static SBA_INLINE void
sba_mark_clean(struct ioc *ioc, dma_addr_t iova, size_t size)
{
u32 iovp = (u32) SBA_IOVP(ioc,iova);
int off = PDIR_INDEX(iovp);
void *addr;
if (size <= iovp_size) {
addr = phys_to_virt(ioc->pdir_base[off] &
~0xE000000000000FFFULL);
mark_clean(addr, size);
} else {
do {
addr = phys_to_virt(ioc->pdir_base[off] &
~0xE000000000000FFFULL);
mark_clean(addr, min(size, iovp_size));
off++;
size -= iovp_size;
} while (size > 0);
}
}
#endif
/**
* sba_unmap_single - unmap one IOVA and free resources
* @dev: instance of PCI owned by the driver that's asking.
@ -995,6 +1031,10 @@ void sba_unmap_single(struct device *dev, dma_addr_t iova, size_t size, int dir)
size += offset;
size = ROUNDUP(size, iovp_size);
#ifdef ENABLE_MARK_CLEAN
if (dir == DMA_FROM_DEVICE)
sba_mark_clean(ioc, iova, size);
#endif
#if DELAYED_RESOURCE_CNT > 0
spin_lock_irqsave(&ioc->saved_lock, flags);
@ -1021,30 +1061,6 @@ void sba_unmap_single(struct device *dev, dma_addr_t iova, size_t size, int dir)
READ_REG(ioc->ioc_hpa+IOC_PCOM); /* flush purges */
spin_unlock_irqrestore(&ioc->res_lock, flags);
#endif /* DELAYED_RESOURCE_CNT == 0 */
#ifdef ENABLE_MARK_CLEAN
if (dir == DMA_FROM_DEVICE) {
u32 iovp = (u32) SBA_IOVP(ioc,iova);
int off = PDIR_INDEX(iovp);
void *addr;
if (size <= iovp_size) {
addr = phys_to_virt(ioc->pdir_base[off] &
~0xE000000000000FFFULL);
mark_clean(addr, size);
} else {
size_t byte_cnt = size;
do {
addr = phys_to_virt(ioc->pdir_base[off] &
~0xE000000000000FFFULL);
mark_clean(addr, min(byte_cnt, iovp_size));
off++;
byte_cnt -= iovp_size;
} while (byte_cnt > 0);
}
}
#endif
}

14
arch/ia64/kernel/entry.S
View file

@ -728,12 +728,8 @@ ENTRY(ia64_leave_syscall)
mov f8=f0 // clear f8
;;
ld8 r30=[r2],16 // M0|1 load cr.ifs
mov.m ar.ssd=r0 // M2 clear ar.ssd
cmp.eq p9,p0=r0,r0 // set p9 to indicate that we should restore cr.ifs
;;
ld8 r25=[r3],16 // M0|1 load ar.unat
mov.m ar.csd=r0 // M2 clear ar.csd
mov r22=r0 // clear r22
cmp.eq p9,p0=r0,r0 // set p9 to indicate that we should restore cr.ifs
;;
ld8 r26=[r2],PT(B0)-PT(AR_PFS) // M0|1 load ar.pfs
(pKStk) mov r22=psr // M2 read PSR now that interrupts are disabled
@ -756,11 +752,15 @@ ENTRY(ia64_leave_syscall)
mov f7=f0 // clear f7
;;
ld8.fill r12=[r2] // restore r12 (sp)
mov.m ar.ssd=r0 // M2 clear ar.ssd
mov r22=r0 // clear r22
ld8.fill r15=[r3] // restore r15
(pUStk) st1 [r14]=r17
addl r3=THIS_CPU(ia64_phys_stacked_size_p8),r0
;;
(pUStk) ld4 r3=[r3] // r3 = cpu_data->phys_stacked_size_p8
(pUStk) st1 [r14]=r17
(pUStk) ld4 r17=[r3] // r17 = cpu_data->phys_stacked_size_p8
mov.m ar.csd=r0 // M2 clear ar.csd
mov b6=r18 // I0 restore b6
;;
mov r14=r0 // clear r14

364
arch/ia64/kernel/iosapic.c
View file

@ -79,6 +79,7 @@
#include <linux/smp.h>
#include <linux/smp_lock.h>
#include <linux/string.h>
#include <linux/bootmem.h>
#include <asm/delay.h>
#include <asm/hw_irq.h>
@ -98,19 +99,30 @@
#define DBG(fmt...)
#endif
#define NR_PREALLOCATE_RTE_ENTRIES (PAGE_SIZE / sizeof(struct iosapic_rte_info))
#define RTE_PREALLOCATED (1)
static DEFINE_SPINLOCK(iosapic_lock);
/* These tables map IA-64 vectors to the IOSAPIC pin that generates this vector. */
static struct iosapic_intr_info {
struct iosapic_rte_info {
struct list_head rte_list; /* node in list of RTEs sharing the same vector */
char __iomem *addr; /* base address of IOSAPIC */
u32 low32; /* current value of low word of Redirection table entry */
unsigned int gsi_base; /* first GSI assigned to this IOSAPIC */
char rte_index; /* IOSAPIC RTE index (-1 => not an IOSAPIC interrupt) */
char rte_index; /* IOSAPIC RTE index */
int refcnt; /* reference counter */
unsigned int flags; /* flags */
} ____cacheline_aligned;
static struct iosapic_intr_info {
struct list_head rtes; /* RTEs using this vector (empty => not an IOSAPIC interrupt) */
int count; /* # of RTEs that shares this vector */
u32 low32; /* current value of low word of Redirection table entry */
unsigned int dest; /* destination CPU physical ID */
unsigned char dmode : 3; /* delivery mode (see iosapic.h) */
unsigned char polarity: 1; /* interrupt polarity (see iosapic.h) */
unsigned char trigger : 1; /* trigger mode (see iosapic.h) */
int refcnt; /* reference counter */
} iosapic_intr_info[IA64_NUM_VECTORS];
static struct iosapic {
@ -126,6 +138,8 @@ static int num_iosapic;
static unsigned char pcat_compat __initdata; /* 8259 compatibility flag */
static int iosapic_kmalloc_ok;
static LIST_HEAD(free_rte_list);
/*
* Find an IOSAPIC associated with a GSI
@ -147,10 +161,12 @@ static inline int
_gsi_to_vector (unsigned int gsi)
{
struct iosapic_intr_info *info;
struct iosapic_rte_info *rte;
for (info = iosapic_intr_info; info < iosapic_intr_info + IA64_NUM_VECTORS; ++info)
if (info->gsi_base + info->rte_index == gsi)
return info - iosapic_intr_info;
list_for_each_entry(rte, &info->rtes, rte_list)
if (rte->gsi_base + rte->rte_index == gsi)
return info - iosapic_intr_info;
return -1;
}
@ -167,33 +183,52 @@ gsi_to_vector (unsigned int gsi)
int
gsi_to_irq (unsigned int gsi)
{
unsigned long flags;
int irq;
/*
* XXX fix me: this assumes an identity mapping vetween IA-64 vector and Linux irq
* numbers...
*/
return _gsi_to_vector(gsi);
spin_lock_irqsave(&iosapic_lock, flags);
{
irq = _gsi_to_vector(gsi);
}
spin_unlock_irqrestore(&iosapic_lock, flags);
return irq;
}
static struct iosapic_rte_info *gsi_vector_to_rte(unsigned int gsi, unsigned int vec)
{
struct iosapic_rte_info *rte;
list_for_each_entry(rte, &iosapic_intr_info[vec].rtes, rte_list)
if (rte->gsi_base + rte->rte_index == gsi)
return rte;
return NULL;
}
static void
set_rte (unsigned int vector, unsigned int dest, int mask)
set_rte (unsigned int gsi, unsigned int vector, unsigned int dest, int mask)
{
unsigned long pol, trigger, dmode;
u32 low32, high32;
char __iomem *addr;
int rte_index;
char redir;
struct iosapic_rte_info *rte;
DBG(KERN_DEBUG"IOSAPIC: routing vector %d to 0x%x\n", vector, dest);
rte_index = iosapic_intr_info[vector].rte_index;
if (rte_index < 0)
rte = gsi_vector_to_rte(gsi, vector);
if (!rte)
return; /* not an IOSAPIC interrupt */
addr = iosapic_intr_info[vector].addr;
rte_index = rte->rte_index;
addr = rte->addr;
pol = iosapic_intr_info[vector].polarity;
trigger = iosapic_intr_info[vector].trigger;
dmode = iosapic_intr_info[vector].dmode;
vector &= (~IA64_IRQ_REDIRECTED);
redir = (dmode == IOSAPIC_LOWEST_PRIORITY) ? 1 : 0;
@ -221,6 +256,7 @@ set_rte (unsigned int vector, unsigned int dest, int mask)
iosapic_write(addr, IOSAPIC_RTE_HIGH(rte_index), high32);
iosapic_write(addr, IOSAPIC_RTE_LOW(rte_index), low32);
iosapic_intr_info[vector].low32 = low32;
iosapic_intr_info[vector].dest = dest;
}
static void
@ -237,18 +273,20 @@ mask_irq (unsigned int irq)
u32 low32;
int rte_index;
ia64_vector vec = irq_to_vector(irq);
struct iosapic_rte_info *rte;
addr = iosapic_intr_info[vec].addr;
rte_index = iosapic_intr_info[vec].rte_index;
if (rte_index < 0)
if (list_empty(&iosapic_intr_info[vec].rtes))
return; /* not an IOSAPIC interrupt! */
spin_lock_irqsave(&iosapic_lock, flags);
{
/* set only the mask bit */
low32 = iosapic_intr_info[vec].low32 |= IOSAPIC_MASK;
iosapic_write(addr, IOSAPIC_RTE_LOW(rte_index), low32);
list_for_each_entry(rte, &iosapic_intr_info[vec].rtes, rte_list) {
addr = rte->addr;
rte_index = rte->rte_index;
iosapic_write(addr, IOSAPIC_RTE_LOW(rte_index), low32);
}
}
spin_unlock_irqrestore(&iosapic_lock, flags);
}
@ -261,16 +299,19 @@ unmask_irq (unsigned int irq)
u32 low32;
int rte_index;
ia64_vector vec = irq_to_vector(irq);
struct iosapic_rte_info *rte;
addr = iosapic_intr_info[vec].addr;
rte_index = iosapic_intr_info[vec].rte_index;
if (rte_index < 0)
if (list_empty(&iosapic_intr_info[vec].rtes))
return; /* not an IOSAPIC interrupt! */
spin_lock_irqsave(&iosapic_lock, flags);
{
low32 = iosapic_intr_info[vec].low32 &= ~IOSAPIC_MASK;
iosapic_write(addr, IOSAPIC_RTE_LOW(rte_index), low32);
list_for_each_entry(rte, &iosapic_intr_info[vec].rtes, rte_list) {
addr = rte->addr;
rte_index = rte->rte_index;
iosapic_write(addr, IOSAPIC_RTE_LOW(rte_index), low32);
}
}
spin_unlock_irqrestore(&iosapic_lock, flags);
}
@ -286,6 +327,7 @@ iosapic_set_affinity (unsigned int irq, cpumask_t mask)
char __iomem *addr;
int redir = (irq & IA64_IRQ_REDIRECTED) ? 1 : 0;
ia64_vector vec;
struct iosapic_rte_info *rte;
irq &= (~IA64_IRQ_REDIRECTED);
vec = irq_to_vector(irq);
@ -295,10 +337,7 @@ iosapic_set_affinity (unsigned int irq, cpumask_t mask)
dest = cpu_physical_id(first_cpu(mask));
rte_index = iosapic_intr_info[vec].rte_index;
addr = iosapic_intr_info[vec].addr;
if (rte_index < 0)
if (list_empty(&iosapic_intr_info[vec].rtes))
return; /* not an IOSAPIC interrupt */
set_irq_affinity_info(irq, dest, redir);
@ -318,8 +357,13 @@ iosapic_set_affinity (unsigned int irq, cpumask_t mask)
low32 |= (IOSAPIC_FIXED << IOSAPIC_DELIVERY_SHIFT);
iosapic_intr_info[vec].low32 = low32;
iosapic_write(addr, IOSAPIC_RTE_HIGH(rte_index), high32);
iosapic_write(addr, IOSAPIC_RTE_LOW(rte_index), low32);
iosapic_intr_info[vec].dest = dest;
list_for_each_entry(rte, &iosapic_intr_info[vec].rtes, rte_list) {
addr = rte->addr;
rte_index = rte->rte_index;
iosapic_write(addr, IOSAPIC_RTE_HIGH(rte_index), high32);
iosapic_write(addr, IOSAPIC_RTE_LOW(rte_index), low32);
}
}
spin_unlock_irqrestore(&iosapic_lock, flags);
#endif
@ -340,9 +384,11 @@ static void
iosapic_end_level_irq (unsigned int irq)
{
ia64_vector vec = irq_to_vector(irq);
struct iosapic_rte_info *rte;
move_irq(irq);
iosapic_eoi(iosapic_intr_info[vec].addr, vec);
list_for_each_entry(rte, &iosapic_intr_info[vec].rtes, rte_list)
iosapic_eoi(rte->addr, vec);
}
#define iosapic_shutdown_level_irq mask_irq
@ -422,6 +468,34 @@ iosapic_version (char __iomem *addr)
return iosapic_read(addr, IOSAPIC_VERSION);
}
static int iosapic_find_sharable_vector (unsigned long trigger, unsigned long pol)
{
int i, vector = -1, min_count = -1;
struct iosapic_intr_info *info;
/*
* shared vectors for edge-triggered interrupts are not
* supported yet
*/
if (trigger == IOSAPIC_EDGE)
return -1;
for (i = IA64_FIRST_DEVICE_VECTOR; i <= IA64_LAST_DEVICE_VECTOR; i++) {
info = &iosapic_intr_info[i];
if (info->trigger == trigger && info->polarity == pol &&
(info->dmode == IOSAPIC_FIXED || info->dmode == IOSAPIC_LOWEST_PRIORITY)) {
if (min_count == -1 || info->count < min_count) {
vector = i;
min_count = info->count;
}
}
}
if (vector < 0)
panic("%s: out of interrupt vectors!\n", __FUNCTION__);
return vector;
}
/*
* if the given vector is already owned by other,
* assign a new vector for the other and make the vector available
@ -431,19 +505,63 @@ iosapic_reassign_vector (int vector)
{
int new_vector;
if (iosapic_intr_info[vector].rte_index >= 0 || iosapic_intr_info[vector].addr
|| iosapic_intr_info[vector].gsi_base || iosapic_intr_info[vector].dmode
|| iosapic_intr_info[vector].polarity || iosapic_intr_info[vector].trigger)
{
if (!list_empty(&iosapic_intr_info[vector].rtes)) {
new_vector = assign_irq_vector(AUTO_ASSIGN);
printk(KERN_INFO "Reassigning vector %d to %d\n", vector, new_vector);
memcpy(&iosapic_intr_info[new_vector], &iosapic_intr_info[vector],
sizeof(struct iosapic_intr_info));
INIT_LIST_HEAD(&iosapic_intr_info[new_vector].rtes);
list_move(iosapic_intr_info[vector].rtes.next, &iosapic_intr_info[new_vector].rtes);
memset(&iosapic_intr_info[vector], 0, sizeof(struct iosapic_intr_info));
iosapic_intr_info[vector].rte_index = -1;
iosapic_intr_info[vector].low32 = IOSAPIC_MASK;
INIT_LIST_HEAD(&iosapic_intr_info[vector].rtes);
}
}
static struct iosapic_rte_info *iosapic_alloc_rte (void)
{
int i;
struct iosapic_rte_info *rte;
int preallocated = 0;
if (!iosapic_kmalloc_ok && list_empty(&free_rte_list)) {
rte = alloc_bootmem(sizeof(struct iosapic_rte_info) * NR_PREALLOCATE_RTE_ENTRIES);
if (!rte)
return NULL;
for (i = 0; i < NR_PREALLOCATE_RTE_ENTRIES; i++, rte++)
list_add(&rte->rte_list, &free_rte_list);
}
if (!list_empty(&free_rte_list)) {
rte = list_entry(free_rte_list.next, struct iosapic_rte_info, rte_list);
list_del(&rte->rte_list);
preallocated++;
} else {
rte = kmalloc(sizeof(struct iosapic_rte_info), GFP_ATOMIC);
if (!rte)
return NULL;
}
memset(rte, 0, sizeof(struct iosapic_rte_info));
if (preallocated)
rte->flags |= RTE_PREALLOCATED;
return rte;
}
static void iosapic_free_rte (struct iosapic_rte_info *rte)
{
if (rte->flags & RTE_PREALLOCATED)
list_add_tail(&rte->rte_list, &free_rte_list);
else
kfree(rte);
}
static inline int vector_is_shared (int vector)
{
return (iosapic_intr_info[vector].count > 1);
}
static void
register_intr (unsigned int gsi, int vector, unsigned char delivery,
unsigned long polarity, unsigned long trigger)
@ -454,6 +572,7 @@ register_intr (unsigned int gsi, int vector, unsigned char delivery,
int index;
unsigned long gsi_base;
void __iomem *iosapic_address;
struct iosapic_rte_info *rte;
index = find_iosapic(gsi);
if (index < 0) {
@ -464,14 +583,33 @@ register_intr (unsigned int gsi, int vector, unsigned char delivery,
iosapic_address = iosapic_lists[index].addr;
gsi_base = iosapic_lists[index].gsi_base;
rte_index = gsi - gsi_base;
iosapic_intr_info[vector].rte_index = rte_index;
rte = gsi_vector_to_rte(gsi, vector);
if (!rte) {
rte = iosapic_alloc_rte();
if (!rte) {
printk(KERN_WARNING "%s: cannot allocate memory\n", __FUNCTION__);
return;
}
rte_index = gsi - gsi_base;
rte->rte_index = rte_index;
rte->addr = iosapic_address;
rte->gsi_base = gsi_base;
rte->refcnt++;
list_add_tail(&rte->rte_list, &iosapic_intr_info[vector].rtes);
iosapic_intr_info[vector].count++;
}
else if (vector_is_shared(vector)) {
struct iosapic_intr_info *info = &iosapic_intr_info[vector];
if (info->trigger != trigger || info->polarity != polarity) {
printk (KERN_WARNING "%s: cannot override the interrupt\n", __FUNCTION__);
return;
}
}
iosapic_intr_info[vector].polarity = polarity;
iosapic_intr_info[vector].dmode = delivery;
iosapic_intr_info[vector].addr = iosapic_address;
iosapic_intr_info[vector].gsi_base = gsi_base;
iosapic_intr_info[vector].trigger = trigger;
iosapic_intr_info[vector].refcnt++;
if (trigger == IOSAPIC_EDGE)
irq_type = &irq_type_iosapic_edge;
@ -493,6 +631,13 @@ get_target_cpu (unsigned int gsi, int vector)
#ifdef CONFIG_SMP
static int cpu = -1;
/*
* In case of vector shared by multiple RTEs, all RTEs that
* share the vector need to use the same destination CPU.
*/
if (!list_empty(&iosapic_intr_info[vector].rtes))
return iosapic_intr_info[vector].dest;
/*
* If the platform supports redirection via XTP, let it
* distribute interrupts.
@ -565,10 +710,12 @@ int
iosapic_register_intr (unsigned int gsi,
unsigned long polarity, unsigned long trigger)
{
int vector;
int vector, mask = 1;
unsigned int dest;
unsigned long flags;
struct iosapic_rte_info *rte;
u32 low32;
again:
/*
* If this GSI has already been registered (i.e., it's a
* shared interrupt, or we lost a race to register it),
@ -578,20 +725,46 @@ iosapic_register_intr (unsigned int gsi,
{
vector = gsi_to_vector(gsi);
if (vector > 0) {
iosapic_intr_info[vector].refcnt++;
rte = gsi_vector_to_rte(gsi, vector);
rte->refcnt++;
spin_unlock_irqrestore(&iosapic_lock, flags);
return vector;
}
vector = assign_irq_vector(AUTO_ASSIGN);
dest = get_target_cpu(gsi, vector);
register_intr(gsi, vector, IOSAPIC_LOWEST_PRIORITY,
polarity, trigger);
set_rte(vector, dest, 1);
}
spin_unlock_irqrestore(&iosapic_lock, flags);
/* If vector is running out, we try to find a sharable vector */
vector = assign_irq_vector_nopanic(AUTO_ASSIGN);
if (vector < 0)
vector = iosapic_find_sharable_vector(trigger, polarity);
spin_lock_irqsave(&irq_descp(vector)->lock, flags);
spin_lock(&iosapic_lock);
{
if (gsi_to_vector(gsi) > 0) {
if (list_empty(&iosapic_intr_info[vector].rtes))
free_irq_vector(vector);
spin_unlock(&iosapic_lock);
spin_unlock_irqrestore(&irq_descp(vector)->lock, flags);
goto again;
}
dest = get_target_cpu(gsi, vector);
register_intr(gsi, vector, IOSAPIC_LOWEST_PRIORITY,
polarity, trigger);
/*
* If the vector is shared and already unmasked for
* other interrupt sources, don't mask it.
*/
low32 = iosapic_intr_info[vector].low32;
if (vector_is_shared(vector) && !(low32 & IOSAPIC_MASK))
mask = 0;
set_rte(gsi, vector, dest, mask);
}
spin_unlock(&iosapic_lock);
spin_unlock_irqrestore(&irq_descp(vector)->lock, flags);
printk(KERN_INFO "GSI %u (%s, %s) -> CPU %d (0x%04x) vector %d\n",
gsi, (trigger == IOSAPIC_EDGE ? "edge" : "level"),
(polarity == IOSAPIC_POL_HIGH ? "high" : "low"),
@ -607,8 +780,10 @@ iosapic_unregister_intr (unsigned int gsi)
unsigned long flags;
int irq, vector;
irq_desc_t *idesc;
int rte_index;
u32 low32;
unsigned long trigger, polarity;
unsigned int dest;
struct iosapic_rte_info *rte;
/*
* If the irq associated with the gsi is not found,
@ -627,54 +802,56 @@ iosapic_unregister_intr (unsigned int gsi)
spin_lock_irqsave(&idesc->lock, flags);
spin_lock(&iosapic_lock);
{
rte_index = iosapic_intr_info[vector].rte_index;
if (rte_index < 0) {
spin_unlock(&iosapic_lock);
spin_unlock_irqrestore(&idesc->lock, flags);
if ((rte = gsi_vector_to_rte(gsi, vector)) == NULL) {
printk(KERN_ERR "iosapic_unregister_intr(%u) unbalanced\n", gsi);
WARN_ON(1);
return;
goto out;
}
if (--iosapic_intr_info[vector].refcnt > 0) {
spin_unlock(&iosapic_lock);
spin_unlock_irqrestore(&idesc->lock, flags);
return;
}
if (--rte->refcnt > 0)
goto out;
/*
* If interrupt handlers still exist on the irq
* associated with the gsi, don't unregister the
* interrupt.
*/
if (idesc->action) {
iosapic_intr_info[vector].refcnt++;
spin_unlock(&iosapic_lock);
spin_unlock_irqrestore(&idesc->lock, flags);
printk(KERN_WARNING "Cannot unregister GSI. IRQ %u is still in use.\n", irq);
return;
}
/* Mask the interrupt */
low32 = iosapic_intr_info[vector].low32 | IOSAPIC_MASK;
iosapic_write(rte->addr, IOSAPIC_RTE_LOW(rte->rte_index), low32);
/* Clear the interrupt controller descriptor. */
idesc->handler = &no_irq_type;
/* Remove the rte entry from the list */
list_del(&rte->rte_list);
iosapic_intr_info[vector].count--;
iosapic_free_rte(rte);
trigger = iosapic_intr_info[vector].trigger;
trigger = iosapic_intr_info[vector].trigger;
polarity = iosapic_intr_info[vector].polarity;
dest = iosapic_intr_info[vector].dest;
printk(KERN_INFO "GSI %u (%s, %s) -> CPU %d (0x%04x) vector %d unregistered\n",
gsi, (trigger == IOSAPIC_EDGE ? "edge" : "level"),
(polarity == IOSAPIC_POL_HIGH ? "high" : "low"),
cpu_logical_id(dest), dest, vector);
/* Clear the interrupt information. */
memset(&iosapic_intr_info[vector], 0, sizeof(struct iosapic_intr_info));
iosapic_intr_info[vector].rte_index = -1; /* mark as unused */
if (list_empty(&iosapic_intr_info[vector].rtes)) {
/* Sanity check */
BUG_ON(iosapic_intr_info[vector].count);
/* Clear the interrupt controller descriptor */
idesc->handler = &no_irq_type;
/* Clear the interrupt information */
memset(&iosapic_intr_info[vector], 0, sizeof(struct iosapic_intr_info));
iosapic_intr_info[vector].low32 |= IOSAPIC_MASK;
INIT_LIST_HEAD(&iosapic_intr_info[vector].rtes);
if (idesc->action) {
printk(KERN_ERR "interrupt handlers still exist on IRQ %u\n", irq);
WARN_ON(1);
}
/* Free the interrupt vector */
free_irq_vector(vector);
}
}
out:
spin_unlock(&iosapic_lock);
spin_unlock_irqrestore(&idesc->lock, flags);
/* Free the interrupt vector */
free_irq_vector(vector);
printk(KERN_INFO "GSI %u (%s, %s) -> vector %d unregisterd.\n",
gsi, (trigger == IOSAPIC_EDGE ? "edge" : "level"),
(polarity == IOSAPIC_POL_HIGH ? "high" : "low"),
vector);
}
#endif /* CONFIG_ACPI_DEALLOCATE_IRQ */
@ -724,7 +901,7 @@ iosapic_register_platform_intr (u32 int_type, unsigned int gsi,
(polarity == IOSAPIC_POL_HIGH ? "high" : "low"),
cpu_logical_id(dest), dest, vector);
set_rte(vector, dest, mask);
set_rte(gsi, vector, dest, mask);
return vector;
}
@ -750,7 +927,7 @@ iosapic_override_isa_irq (unsigned int isa_irq, unsigned int gsi,
polarity == IOSAPIC_POL_HIGH ? "high" : "low",
cpu_logical_id(dest), dest, vector);
set_rte(vector, dest, 1);
set_rte(gsi, vector, dest, 1);
}
void __init
@ -758,8 +935,10 @@ iosapic_system_init (int system_pcat_compat)
{
int vector;
for (vector = 0; vector < IA64_NUM_VECTORS; ++vector)
iosapic_intr_info[vector].rte_index = -1; /* mark as unused */
for (vector = 0; vector < IA64_NUM_VECTORS; ++vector) {
iosapic_intr_info[vector].low32 = IOSAPIC_MASK;
INIT_LIST_HEAD(&iosapic_intr_info[vector].rtes); /* mark as unused */
}
pcat_compat = system_pcat_compat;
if (pcat_compat) {
@ -825,3 +1004,10 @@ map_iosapic_to_node(unsigned int gsi_base, int node)
return;
}
#endif
static int __init iosapic_enable_kmalloc (void)
{
iosapic_kmalloc_ok = 1;
return 0;
}
core_initcall (iosapic_enable_kmalloc);

16
arch/ia64/kernel/irq_ia64.c
View file

@ -63,20 +63,30 @@ EXPORT_SYMBOL(isa_irq_to_vector_map);
static unsigned long ia64_vector_mask[BITS_TO_LONGS(IA64_NUM_DEVICE_VECTORS)];
int
assign_irq_vector (int irq)
assign_irq_vector_nopanic (int irq)
{
int pos, vector;
again:
pos = find_first_zero_bit(ia64_vector_mask, IA64_NUM_DEVICE_VECTORS);
vector = IA64_FIRST_DEVICE_VECTOR + pos;
if (vector > IA64_LAST_DEVICE_VECTOR)
/* XXX could look for sharable vectors instead of panic'ing... */
panic("assign_irq_vector: out of interrupt vectors!");
return -1;
if (test_and_set_bit(pos, ia64_vector_mask))
goto again;
return vector;
}
int
assign_irq_vector (int irq)
{
int vector = assign_irq_vector_nopanic(irq);
if (vector < 0)
panic("assign_irq_vector: out of interrupt vectors!");
return vector;
}
void
free_irq_vector (int vector)
{

59
arch/ia64/kernel/perfmon.c
View file

@ -479,14 +479,6 @@ typedef struct {
#define PFM_CMD_ARG_MANY -1 /* cannot be zero */
typedef struct {
int debug; /* turn on/off debugging via syslog */
int debug_ovfl; /* turn on/off debug printk in overflow handler */
int fastctxsw; /* turn on/off fast (unsecure) ctxsw */
int expert_mode; /* turn on/off value checking */
int debug_pfm_read;
} pfm_sysctl_t;
typedef struct {
unsigned long pfm_spurious_ovfl_intr_count; /* keep track of spurious ovfl interrupts */
unsigned long pfm_replay_ovfl_intr_count; /* keep track of replayed ovfl interrupts */
@ -514,8 +506,8 @@ static LIST_HEAD(pfm_buffer_fmt_list);
static pmu_config_t *pmu_conf;
/* sysctl() controls */
static pfm_sysctl_t pfm_sysctl;
int pfm_debug_var;
pfm_sysctl_t pfm_sysctl;
EXPORT_SYMBOL(pfm_sysctl);
static ctl_table pfm_ctl_table[]={
{1, "debug", &pfm_sysctl.debug, sizeof(int), 0666, NULL, &proc_dointvec, NULL,},
@ -1576,7 +1568,7 @@ pfm_read(struct file *filp, char __user *buf, size_t size, loff_t *ppos)
goto abort_locked;
}
DPRINT(("[%d] fd=%d type=%d\n", current->pid, msg->pfm_gen_msg.msg_ctx_fd, msg->pfm_gen_msg.msg_type));
DPRINT(("fd=%d type=%d\n", msg->pfm_gen_msg.msg_ctx_fd, msg->pfm_gen_msg.msg_type));
ret = -EFAULT;
if(copy_to_user(buf, msg, sizeof(pfm_msg_t)) == 0) ret = sizeof(pfm_msg_t);
@ -3695,8 +3687,6 @@ pfm_debug(pfm_context_t *ctx, void *arg, int count, struct pt_regs *regs)
pfm_sysctl.debug = m == 0 ? 0 : 1;
pfm_debug_var = pfm_sysctl.debug;
printk(KERN_INFO "perfmon debugging %s (timing reset)\n", pfm_sysctl.debug ? "on" : "off");
if (m == 0) {
@ -4996,13 +4986,21 @@ pfm_context_force_terminate(pfm_context_t *ctx, struct pt_regs *regs)
}
static int pfm_ovfl_notify_user(pfm_context_t *ctx, unsigned long ovfl_pmds);
/*
* pfm_handle_work() can be called with interrupts enabled
* (TIF_NEED_RESCHED) or disabled. The down_interruptible
* call may sleep, therefore we must re-enable interrupts
* to avoid deadlocks. It is safe to do so because this function
* is called ONLY when returning to user level (PUStk=1), in which case
* there is no risk of kernel stack overflow due to deep
* interrupt nesting.
*/
void
pfm_handle_work(void)
{
pfm_context_t *ctx;
struct pt_regs *regs;
unsigned long flags;
unsigned long flags, dummy_flags;
unsigned long ovfl_regs;
unsigned int reason;
int ret;
@ -5039,18 +5037,15 @@ pfm_handle_work(void)
//if (CTX_OVFL_NOBLOCK(ctx)) goto skip_blocking;
if (reason == PFM_TRAP_REASON_RESET) goto skip_blocking;
/*
* restore interrupt mask to what it was on entry.
* Could be enabled/diasbled.
*/
UNPROTECT_CTX(ctx, flags);
/*
* pfm_handle_work() is currently called with interrupts disabled.
* The down_interruptible call may sleep, therefore we
* must re-enable interrupts to avoid deadlocks. It is
* safe to do so because this function is called ONLY
* when returning to user level (PUStk=1), in which case
* there is no risk of kernel stack overflow due to deep
* interrupt nesting.
*/
BUG_ON(flags & IA64_PSR_I);
/*
* force interrupt enable because of down_interruptible()
*/
local_irq_enable();
DPRINT(("before block sleeping\n"));
@ -5064,12 +5059,12 @@ pfm_handle_work(void)
DPRINT(("after block sleeping ret=%d\n", ret));
/*
* disable interrupts to restore state we had upon entering
* this function
* lock context and mask interrupts again
* We save flags into a dummy because we may have
* altered interrupts mask compared to entry in this
* function.
*/
local_irq_disable();
PROTECT_CTX(ctx, flags);
PROTECT_CTX(ctx, dummy_flags);
/*
* we need to read the ovfl_regs only after wake-up
@ -5095,7 +5090,9 @@ pfm_handle_work(void)
ctx->ctx_ovfl_regs[0] = 0UL;
nothing_to_do:
/*
* restore flags as they were upon entry
*/
UNPROTECT_CTX(ctx, flags);
}

13
arch/ia64/kernel/perfmon_default_smpl.c
View file

@ -20,24 +20,17 @@ MODULE_AUTHOR("Stephane Eranian <eranian@hpl.hp.com>");
MODULE_DESCRIPTION("perfmon default sampling format");
MODULE_LICENSE("GPL");
MODULE_PARM(debug, "i");
MODULE_PARM_DESC(debug, "debug");
MODULE_PARM(debug_ovfl, "i");
MODULE_PARM_DESC(debug_ovfl, "debug ovfl");
#define DEFAULT_DEBUG 1
#ifdef DEFAULT_DEBUG
#define DPRINT(a) \
do { \
if (unlikely(debug >0)) { printk("%s.%d: CPU%d ", __FUNCTION__, __LINE__, smp_processor_id()); printk a; } \
if (unlikely(pfm_sysctl.debug >0)) { printk("%s.%d: CPU%d ", __FUNCTION__, __LINE__, smp_processor_id()); printk a; } \
} while (0)
#define DPRINT_ovfl(a) \
do { \
if (unlikely(debug_ovfl >0)) { printk("%s.%d: CPU%d ", __FUNCTION__, __LINE__, smp_processor_id()); printk a; } \
if (unlikely(pfm_sysctl.debug > 0 && pfm_sysctl.debug_ovfl >0)) { printk("%s.%d: CPU%d ", __FUNCTION__, __LINE__, smp_processor_id()); printk a; } \
} while (0)
#else
@ -45,8 +38,6 @@ MODULE_PARM_DESC(debug_ovfl, "debug ovfl");
#define DPRINT_ovfl(a)
#endif
static int debug, debug_ovfl;
static int
default_validate(struct task_struct *task, unsigned int flags, int cpu, void *data)
{

69
arch/ia64/kernel/setup.c
View file

@ -4,10 +4,15 @@
* Copyright (C) 1998-2001, 2003-2004 Hewlett-Packard Co
* David Mosberger-Tang <davidm@hpl.hp.com>
* Stephane Eranian <eranian@hpl.hp.com>
* Copyright (C) 2000, Rohit Seth <rohit.seth@intel.com>
* Copyright (C) 2000, 2004 Intel Corp
* Rohit Seth <rohit.seth@intel.com>
* Suresh Siddha <suresh.b.siddha@intel.com>
* Gordon Jin <gordon.jin@intel.com>
* Copyright (C) 1999 VA Linux Systems
* Copyright (C) 1999 Walt Drummond <drummond@valinux.com>
*
* 12/26/04 S.Siddha, G.Jin, R.Seth
* Add multi-threading and multi-core detection
* 11/12/01 D.Mosberger Convert get_cpuinfo() to seq_file based show_cpuinfo().
* 04/04/00 D.Mosberger renamed cpu_initialized to cpu_online_map
* 03/31/00 R.Seth cpu_initialized and current->processor fixes
@ -296,6 +301,34 @@ mark_bsp_online (void)
#endif
}
#ifdef CONFIG_SMP
static void
check_for_logical_procs (void)
{
pal_logical_to_physical_t info;
s64 status;
status = ia64_pal_logical_to_phys(0, &info);
if (status == -1) {
printk(KERN_INFO "No logical to physical processor mapping "
"available\n");
return;
}
if (status) {
printk(KERN_ERR "ia64_pal_logical_to_phys failed with %ld\n",
status);
return;
}
/*
* Total number of siblings that BSP has. Though not all of them
* may have booted successfully. The correct number of siblings
* booted is in info.overview_num_log.
*/
smp_num_siblings = info.overview_tpc;
smp_num_cpucores = info.overview_cpp;
}
#endif
void __init
setup_arch (char **cmdline_p)
{
@ -356,6 +389,19 @@ setup_arch (char **cmdline_p)
#ifdef CONFIG_SMP
cpu_physical_id(0) = hard_smp_processor_id();
cpu_set(0, cpu_sibling_map[0]);
cpu_set(0, cpu_core_map[0]);
check_for_logical_procs();
if (smp_num_cpucores > 1)
printk(KERN_INFO
"cpu package is Multi-Core capable: number of cores=%d\n",
smp_num_cpucores);
if (smp_num_siblings > 1)
printk(KERN_INFO
"cpu package is Multi-Threading capable: number of siblings=%d\n",
smp_num_siblings);
#endif
cpu_init(); /* initialize the bootstrap CPU */
@ -459,12 +505,23 @@ show_cpuinfo (struct seq_file *m, void *v)
"cpu regs : %u\n"
"cpu MHz : %lu.%06lu\n"
"itc MHz : %lu.%06lu\n"
"BogoMIPS : %lu.%02lu\n\n",
"BogoMIPS : %lu.%02lu\n",
cpunum, c->vendor, family, c->model, c->revision, c->archrev,
features, c->ppn, c->number,
c->proc_freq / 1000000, c->proc_freq % 1000000,
c->itc_freq / 1000000, c->itc_freq % 1000000,
lpj*HZ/500000, (lpj*HZ/5000) % 100);
#ifdef CONFIG_SMP
seq_printf(m, "siblings : %u\n", c->num_log);
if (c->threads_per_core > 1 || c->cores_per_socket > 1)
seq_printf(m,
"physical id: %u\n"
"core id : %u\n"
"thread id : %u\n",
c->socket_id, c->core_id, c->thread_id);
#endif
seq_printf(m,"\n");
return 0;
}
@ -533,6 +590,14 @@ identify_cpu (struct cpuinfo_ia64 *c)
memcpy(c->vendor, cpuid.field.vendor, 16);
#ifdef CONFIG_SMP
c->cpu = smp_processor_id();
/* below default values will be overwritten by identify_siblings()
* for Multi-Threading/Multi-Core capable cpu's
*/
c->threads_per_core = c->cores_per_socket = c->num_log = 1;
c->socket_id = -1;
identify_siblings(c);
#endif
c->ppn = cpuid.field.ppn;
c->number = cpuid.field.number;

217
arch/ia64/kernel/smpboot.c
View file

@ -1,8 +1,13 @@
/*
* SMP boot-related support
*
* Copyright (C) 1998-2003 Hewlett-Packard Co
* Copyright (C) 1998-2003, 2005 Hewlett-Packard Co
* David Mosberger-Tang <davidm@hpl.hp.com>
* Copyright (C) 2001, 2004-2005 Intel Corp
* Rohit Seth <rohit.seth@intel.com>
* Suresh Siddha <suresh.b.siddha@intel.com>
* Gordon Jin <gordon.jin@intel.com>
* Ashok Raj <ashok.raj@intel.com>
*
* 01/05/16 Rohit Seth <rohit.seth@intel.com> Moved SMP booting functions from smp.c to here.
* 01/04/27 David Mosberger <davidm@hpl.hp.com> Added ITC synching code.
@ -10,6 +15,11 @@
* smp_boot_cpus()/smp_commence() is replaced by
* smp_prepare_cpus()/__cpu_up()/smp_cpus_done().
* 04/06/21 Ashok Raj <ashok.raj@intel.com> Added CPU Hotplug Support
* 04/12/26 Jin Gordon <gordon.jin@intel.com>
* 04/12/26 Rohit Seth <rohit.seth@intel.com>
* Add multi-threading and multi-core detection
* 05/01/30 Suresh Siddha <suresh.b.siddha@intel.com>
* Setup cpu_sibling_map and cpu_core_map
*/
#include <linux/config.h>
@ -122,6 +132,11 @@ EXPORT_SYMBOL(cpu_online_map);
cpumask_t cpu_possible_map;
EXPORT_SYMBOL(cpu_possible_map);
cpumask_t cpu_core_map[NR_CPUS] __cacheline_aligned;
cpumask_t cpu_sibling_map[NR_CPUS] __cacheline_aligned;
int smp_num_siblings = 1;
int smp_num_cpucores = 1;
/* which logical CPU number maps to which CPU (physical APIC ID) */
volatile int ia64_cpu_to_sapicid[NR_CPUS];
EXPORT_SYMBOL(ia64_cpu_to_sapicid);
@ -156,7 +171,8 @@ sync_master (void *arg)
local_irq_save(flags);
{
for (i = 0; i < NUM_ROUNDS*NUM_ITERS; ++i) {
while (!go[MASTER]);
while (!go[MASTER])
cpu_relax();
go[MASTER] = 0;
go[SLAVE] = ia64_get_itc();
}
@ -179,7 +195,8 @@ get_delta (long *rt, long *master)
for (i = 0; i < NUM_ITERS; ++i) {
t0 = ia64_get_itc();
go[MASTER] = 1;
while (!(tm = go[SLAVE]));
while (!(tm = go[SLAVE]))
cpu_relax();
go[SLAVE] = 0;
t1 = ia64_get_itc();
@ -258,7 +275,8 @@ ia64_sync_itc (unsigned int master)
return;
}
while (go[MASTER]); /* wait for master to be ready */
while (go[MASTER])
cpu_relax(); /* wait for master to be ready */
spin_lock_irqsave(&itc_sync_lock, flags);
{
@ -595,7 +613,68 @@ void __devinit smp_prepare_boot_cpu(void)
cpu_set(smp_processor_id(), cpu_callin_map);
}
/*
* mt_info[] is a temporary store for all info returned by
* PAL_LOGICAL_TO_PHYSICAL, to be copied into cpuinfo_ia64 when the
* specific cpu comes.
*/
static struct {
__u32 socket_id;
__u16 core_id;
__u16 thread_id;
__u16 proc_fixed_addr;
__u8 valid;
}mt_info[NR_CPUS] __devinit;
#ifdef CONFIG_HOTPLUG_CPU
static inline void
remove_from_mtinfo(int cpu)
{
int i;
for_each_cpu(i)
if (mt_info[i].valid && mt_info[i].socket_id ==
cpu_data(cpu)->socket_id)
mt_info[i].valid = 0;
}
static inline void
clear_cpu_sibling_map(int cpu)
{
int i;
for_each_cpu_mask(i, cpu_sibling_map[cpu])
cpu_clear(cpu, cpu_sibling_map[i]);
for_each_cpu_mask(i, cpu_core_map[cpu])
cpu_clear(cpu, cpu_core_map[i]);
cpu_sibling_map[cpu] = cpu_core_map[cpu] = CPU_MASK_NONE;
}
static void
remove_siblinginfo(int cpu)
{
int last = 0;
if (cpu_data(cpu)->threads_per_core == 1 &&
cpu_data(cpu)->cores_per_socket == 1) {
cpu_clear(cpu, cpu_core_map[cpu]);
cpu_clear(cpu, cpu_sibling_map[cpu]);
return;
}
last = (cpus_weight(cpu_core_map[cpu]) == 1 ? 1 : 0);
/* remove it from all sibling map's */
clear_cpu_sibling_map(cpu);
/* if this cpu is the last in the core group, remove all its info
* from mt_info structure
*/
if (last)
remove_from_mtinfo(cpu);
}
extern void fixup_irqs(void);
/* must be called with cpucontrol mutex held */
int __cpu_disable(void)
@ -608,6 +687,7 @@ int __cpu_disable(void)
if (cpu == 0)
return -EBUSY;
remove_siblinginfo(cpu);
fixup_irqs();
local_flush_tlb_all();
cpu_clear(cpu, cpu_callin_map);
@ -660,6 +740,23 @@ smp_cpus_done (unsigned int dummy)
(int)num_online_cpus(), bogosum/(500000/HZ), (bogosum/(5000/HZ))%100);
}
static inline void __devinit
set_cpu_sibling_map(int cpu)
{
int i;
for_each_online_cpu(i) {
if ((cpu_data(cpu)->socket_id == cpu_data(i)->socket_id)) {
cpu_set(i, cpu_core_map[cpu]);
cpu_set(cpu, cpu_core_map[i]);
if (cpu_data(cpu)->core_id == cpu_data(i)->core_id) {
cpu_set(i, cpu_sibling_map[cpu]);
cpu_set(cpu, cpu_sibling_map[i]);
}
}
}
}
int __devinit
__cpu_up (unsigned int cpu)
{
@ -682,6 +779,15 @@ __cpu_up (unsigned int cpu)
if (ret < 0)
return ret;
if (cpu_data(cpu)->threads_per_core == 1 &&
cpu_data(cpu)->cores_per_socket == 1) {
cpu_set(cpu, cpu_sibling_map[cpu]);
cpu_set(cpu, cpu_core_map[cpu]);
return 0;
}
set_cpu_sibling_map(cpu);
return 0;
}
@ -709,3 +815,106 @@ init_smp_config(void)
ia64_sal_strerror(sal_ret));
}
static inline int __devinit
check_for_mtinfo_index(void)
{
int i;
for_each_cpu(i)
if (!mt_info[i].valid)
return i;
return -1;
}
/*
* Search the mt_info to find out if this socket's cid/tid information is
* cached or not. If the socket exists, fill in the core_id and thread_id
* in cpuinfo
*/
static int __devinit
check_for_new_socket(__u16 logical_address, struct cpuinfo_ia64 *c)
{
int i;
__u32 sid = c->socket_id;
for_each_cpu(i) {
if (mt_info[i].valid && mt_info[i].proc_fixed_addr == logical_address
&& mt_info[i].socket_id == sid) {
c->core_id = mt_info[i].core_id;
c->thread_id = mt_info[i].thread_id;
return 1; /* not a new socket */
}
}
return 0;
}
/*
* identify_siblings(cpu) gets called from identify_cpu. This populates the
* information related to logical execution units in per_cpu_data structure.
*/
void __devinit
identify_siblings(struct cpuinfo_ia64 *c)
{
s64 status;
u16 pltid;
u64 proc_fixed_addr;
int count, i;
pal_logical_to_physical_t info;
if (smp_num_cpucores == 1 && smp_num_siblings == 1)
return;
if ((status = ia64_pal_logical_to_phys(0, &info)) != PAL_STATUS_SUCCESS) {
printk(KERN_ERR "ia64_pal_logical_to_phys failed with %ld\n",
status);
return;
}
if ((status = ia64_sal_physical_id_info(&pltid)) != PAL_STATUS_SUCCESS) {
printk(KERN_ERR "ia64_sal_pltid failed with %ld\n", status);
return;
}
if ((status = ia64_pal_fixed_addr(&proc_fixed_addr)) != PAL_STATUS_SUCCESS) {
printk(KERN_ERR "ia64_pal_fixed_addr failed with %ld\n", status);
return;
}
c->socket_id = (pltid << 8) | info.overview_ppid;
c->cores_per_socket = info.overview_cpp;
c->threads_per_core = info.overview_tpc;
count = c->num_log = info.overview_num_log;
/* If the thread and core id information is already cached, then
* we will simply update cpu_info and return. Otherwise, we will
* do the PAL calls and cache core and thread id's of all the siblings.
*/
if (check_for_new_socket(proc_fixed_addr, c))
return;
for (i = 0; i < count; i++) {
int index;
if (i && (status = ia64_pal_logical_to_phys(i, &info))
!= PAL_STATUS_SUCCESS) {
printk(KERN_ERR "ia64_pal_logical_to_phys failed"
" with %ld\n", status);
return;
}
if (info.log2_la == proc_fixed_addr) {
c->core_id = info.log1_cid;
c->thread_id = info.log1_tid;
}
index = check_for_mtinfo_index();
/* We will not do the mt_info caching optimization in this case.
*/
if (index < 0)
continue;
mt_info[index].valid = 1;
mt_info[index].socket_id = c->socket_id;
mt_info[index].core_id = info.log1_cid;
mt_info[index].thread_id = info.log1_tid;
mt_info[index].proc_fixed_addr = info.log2_la;
}
}

29
arch/ia64/kernel/unwind.c
View file

@ -1943,23 +1943,30 @@ EXPORT_SYMBOL(unw_unwind);
int
unw_unwind_to_user (struct unw_frame_info *info)
{
unsigned long ip, sp;
unsigned long ip, sp, pr = 0;
while (unw_unwind(info) >= 0) {
if (unw_get_rp(info, &ip) < 0) {
unw_get_ip(info, &ip);
UNW_DPRINT(0, "unwind.%s: failed to read return pointer (ip=0x%lx)\n",
__FUNCTION__, ip);
unw_get_sp(info, &sp);
if ((long)((unsigned long)info->task + IA64_STK_OFFSET - sp)
< IA64_PT_REGS_SIZE) {
UNW_DPRINT(0, "unwind.%s: ran off the top of the kernel stack\n",
__FUNCTION__);
break;
}
if (unw_is_intr_frame(info) &&
(pr & (1UL << PRED_USER_STACK)))
return 0;
if (unw_get_pr (info, &pr) < 0) {
unw_get_rp(info, &ip);
UNW_DPRINT(0, "unwind.%s: failed to read "
"predicate register (ip=0x%lx)\n",
__FUNCTION__, ip);
return -1;
}
unw_get_sp(info, &sp);
if (sp >= (unsigned long)info->task + IA64_STK_OFFSET)
break;
if (ip < FIXADDR_USER_END)
return 0;
}
unw_get_ip(info, &ip);
UNW_DPRINT(0, "unwind.%s: failed to unwind to user-level (ip=0x%lx)\n", __FUNCTION__, ip);
UNW_DPRINT(0, "unwind.%s: failed to unwind to user-level (ip=0x%lx)\n",
__FUNCTION__, ip);
return -1;
}
EXPORT_SYMBOL(unw_unwind_to_user);

2
arch/ia64/lib/memcpy_mck.S
View file

@ -300,7 +300,7 @@ EK(.ex_handler, (p[D]) st8 [dst1] = t15, 4*8)
add src_pre_mem=0,src0 // prefetch src pointer
add dst_pre_mem=0,dst0 // prefetch dest pointer
and src0=-8,src0 // 1st src pointer
(p7) mov ar.lc = r21
(p7) mov ar.lc = cnt
(p8) mov ar.lc = r0
;;
TEXT_ALIGN(32)

3
arch/ia64/mm/contig.c
View file

@ -61,7 +61,8 @@ show_mem (void)
printk("%d reserved pages\n", reserved);
printk("%d pages shared\n", shared);
printk("%d pages swap cached\n", cached);
printk("%ld pages in page table cache\n", pgtable_cache_size);
printk("%ld pages in page table cache\n",
pgtable_quicklist_total_size());
}
/* physical address where the bootmem map is located */

3
arch/ia64/mm/discontig.c
View file

@ -582,7 +582,8 @@ void show_mem(void)
printk("%d reserved pages\n", total_reserved);
printk("%d pages shared\n", total_shared);
printk("%d pages swap cached\n", total_cached);
printk("Total of %ld pages in page table cache\n", pgtable_cache_size);
printk("Total of %ld pages in page table cache\n",
pgtable_quicklist_total_size());
printk("%d free buffer pages\n", nr_free_buffer_pages());
}

9
arch/ia64/mm/fault.c
View file

@ -209,10 +209,13 @@ ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *re
}
no_context:
if (isr & IA64_ISR_SP) {
if ((isr & IA64_ISR_SP)
|| ((isr & IA64_ISR_NA) && (isr & IA64_ISR_CODE_MASK) == IA64_ISR_CODE_LFETCH))
{
/*
* This fault was due to a speculative load set the "ed" bit in the psr to
* ensure forward progress (target register will get a NaT).
* This fault was due to a speculative load or lfetch.fault, set the "ed"
* bit in the psr to ensure forward progress. (Target register will get a
* NaT for ld.s, lfetch will be canceled.)
*/
ia64_psr(regs)->ed = 1;
return;

78
arch/ia64/mm/init.c
View file

@ -39,6 +39,9 @@
DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
DEFINE_PER_CPU(unsigned long *, __pgtable_quicklist);
DEFINE_PER_CPU(long, __pgtable_quicklist_size);
extern void ia64_tlb_init (void);
unsigned long MAX_DMA_ADDRESS = PAGE_OFFSET + 0x100000000UL;
@ -50,27 +53,53 @@ struct page *vmem_map;
EXPORT_SYMBOL(vmem_map);
#endif
static int pgt_cache_water[2] = { 25, 50 };
struct page *zero_page_memmap_ptr; /* map entry for zero page */
struct page *zero_page_memmap_ptr; /* map entry for zero page */
EXPORT_SYMBOL(zero_page_memmap_ptr);
void
check_pgt_cache (void)
{
int low, high;
#define MIN_PGT_PAGES 25UL
#define MAX_PGT_FREES_PER_PASS 16L
#define PGT_FRACTION_OF_NODE_MEM 16
low = pgt_cache_water[0];
high = pgt_cache_water[1];
static inline long
max_pgt_pages(void)
{
u64 node_free_pages, max_pgt_pages;
#ifndef CONFIG_NUMA
node_free_pages = nr_free_pages();
#else
node_free_pages = nr_free_pages_pgdat(NODE_DATA(numa_node_id()));
#endif
max_pgt_pages = node_free_pages / PGT_FRACTION_OF_NODE_MEM;
max_pgt_pages = max(max_pgt_pages, MIN_PGT_PAGES);
return max_pgt_pages;
}
static inline long
min_pages_to_free(void)
{
long pages_to_free;
pages_to_free = pgtable_quicklist_size - max_pgt_pages();
pages_to_free = min(pages_to_free, MAX_PGT_FREES_PER_PASS);
return pages_to_free;
}
void
check_pgt_cache(void)
{
long pages_to_free;
if (unlikely(pgtable_quicklist_size <= MIN_PGT_PAGES))
return;
preempt_disable();
if (pgtable_cache_size > (u64) high) {
do {
if (pgd_quicklist)
free_page((unsigned long)pgd_alloc_one_fast(NULL));
if (pmd_quicklist)
free_page((unsigned long)pmd_alloc_one_fast(NULL, 0));
} while (pgtable_cache_size > (u64) low);
while (unlikely((pages_to_free = min_pages_to_free()) > 0)) {
while (pages_to_free--) {
free_page((unsigned long)pgtable_quicklist_alloc());
}
preempt_enable();
preempt_disable();
}
preempt_enable();
}
@ -523,11 +552,14 @@ void
mem_init (void)
{
long reserved_pages, codesize, datasize, initsize;
unsigned long num_pgt_pages;
pg_data_t *pgdat;
int i;
static struct kcore_list kcore_mem, kcore_vmem, kcore_kernel;
BUG_ON(PTRS_PER_PGD * sizeof(pgd_t) != PAGE_SIZE);
BUG_ON(PTRS_PER_PMD * sizeof(pmd_t) != PAGE_SIZE);
BUG_ON(PTRS_PER_PTE * sizeof(pte_t) != PAGE_SIZE);
#ifdef CONFIG_PCI
/*
* This needs to be called _after_ the command line has been parsed but _before_
@ -564,18 +596,6 @@ mem_init (void)
num_physpages << (PAGE_SHIFT - 10), codesize >> 10,
reserved_pages << (PAGE_SHIFT - 10), datasize >> 10, initsize >> 10);
/*
* Allow for enough (cached) page table pages so that we can map the entire memory
* at least once. Each task also needs a couple of page tables pages, so add in a
* fudge factor for that (don't use "threads-max" here; that would be wrong!).
* Don't allow the cache to be more than 10% of total memory, though.
*/
# define NUM_TASKS 500 /* typical number of tasks */
num_pgt_pages = nr_free_pages() / PTRS_PER_PGD + NUM_TASKS;
if (num_pgt_pages > nr_free_pages() / 10)
num_pgt_pages = nr_free_pages() / 10;
if (num_pgt_pages > (u64) pgt_cache_water[1])
pgt_cache_water[1] = num_pgt_pages;
/*
* For fsyscall entrpoints with no light-weight handler, use the ordinary

6
arch/ia64/sn/include/pci/pcibr_provider.h
View file

@ -123,9 +123,11 @@ pcibr_lock(struct pcibus_info *pcibus_info)
}
#define pcibr_unlock(pcibus_info, flag) spin_unlock_irqrestore(&pcibus_info->pbi_lock, flag)
extern int pcibr_init_provider(void);
extern void *pcibr_bus_fixup(struct pcibus_bussoft *);
extern uint64_t pcibr_dma_map(struct pcidev_info *, unsigned long, size_t, unsigned int);
extern void pcibr_dma_unmap(struct pcidev_info *, dma_addr_t, int);
extern dma_addr_t pcibr_dma_map(struct pci_dev *, unsigned long, size_t);
extern dma_addr_t pcibr_dma_map_consistent(struct pci_dev *, unsigned long, size_t);
extern void pcibr_dma_unmap(struct pci_dev *, dma_addr_t, int);
/*
* prototypes for the bridge asic register access routines in pcibr_reg.c

1
arch/ia64/sn/kernel/Makefile
View file

@ -10,3 +10,4 @@
obj-y += setup.o bte.o bte_error.o irq.o mca.o idle.o \
huberror.o io_init.o iomv.o klconflib.o sn2/
obj-$(CONFIG_IA64_GENERIC) += machvec.o
obj-$(CONFIG_SGI_TIOCX) += tiocx.o

20
arch/ia64/sn/kernel/bte.c
View file

@ -3,7 +3,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved.
* Copyright (c) 2000-2005 Silicon Graphics, Inc. All Rights Reserved.
*/
#include <linux/config.h>
@ -170,10 +170,6 @@ bte_result_t bte_copy(u64 src, u64 dest, u64 len, u64 mode, void *notification)
/* Initialize the notification to a known value. */
*bte->most_rcnt_na = BTE_WORD_BUSY;
/* Set the status reg busy bit and transfer length */
BTE_PRINTKV(("IBLS = 0x%lx\n", IBLS_BUSY | transfer_size));
BTE_LNSTAT_STORE(bte, IBLS_BUSY | transfer_size);
/* Set the source and destination registers */
BTE_PRINTKV(("IBSA = 0x%lx)\n", (TO_PHYS(src))));
BTE_SRC_STORE(bte, TO_PHYS(src));
@ -188,7 +184,7 @@ bte_result_t bte_copy(u64 src, u64 dest, u64 len, u64 mode, void *notification)
/* Initiate the transfer */
BTE_PRINTK(("IBCT = 0x%lx)\n", BTE_VALID_MODE(mode)));
BTE_CTRL_STORE(bte, BTE_VALID_MODE(mode));
BTE_START_TRANSFER(bte, transfer_size, BTE_VALID_MODE(mode));
itc_end = ia64_get_itc() + (40000000 * local_cpu_data->cyc_per_usec);
@ -429,10 +425,16 @@ void bte_init_node(nodepda_t * mynodepda, cnodeid_t cnode)
mynodepda->bte_recovery_timer.data = (unsigned long)mynodepda;
for (i = 0; i < BTES_PER_NODE; i++) {
u64 *base_addr;
/* Which link status register should we use? */
unsigned long link_status = (i == 0 ? IIO_IBLS0 : IIO_IBLS1);
mynodepda->bte_if[i].bte_base_addr = (u64 *)
REMOTE_HUB_ADDR(cnodeid_to_nasid(cnode), link_status);
base_addr = (u64 *)
REMOTE_HUB_ADDR(cnodeid_to_nasid(cnode), BTE_BASE_ADDR(i));
mynodepda->bte_if[i].bte_base_addr = base_addr;
mynodepda->bte_if[i].bte_source_addr = BTE_SOURCE_ADDR(base_addr);
mynodepda->bte_if[i].bte_destination_addr = BTE_DEST_ADDR(base_addr);
mynodepda->bte_if[i].bte_control_addr = BTE_CTRL_ADDR(base_addr);
mynodepda->bte_if[i].bte_notify_addr = BTE_NOTIF_ADDR(base_addr);
/*
* Initialize the notification and spinlock

76
arch/ia64/sn/kernel/bte_error.c
View file

@ -3,7 +3,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (c) 2000-2004 Silicon Graphics, Inc. All Rights Reserved.
* Copyright (c) 2000-2005 Silicon Graphics, Inc. All Rights Reserved.
*/
#include <linux/types.h>
@ -33,48 +33,28 @@ void bte_error_handler(unsigned long);
* Wait until all BTE related CRBs are completed
* and then reset the interfaces.
*/
void bte_error_handler(unsigned long _nodepda)
void shub1_bte_error_handler(unsigned long _nodepda)
{
struct nodepda_s *err_nodepda = (struct nodepda_s *)_nodepda;
spinlock_t *recovery_lock = &err_nodepda->bte_recovery_lock;
struct timer_list *recovery_timer = &err_nodepda->bte_recovery_timer;
nasid_t nasid;
int i;
int valid_crbs;
unsigned long irq_flags;
volatile u64 *notify;
bte_result_t bh_error;
ii_imem_u_t imem; /* II IMEM Register */
ii_icrb0_d_u_t icrbd; /* II CRB Register D */
ii_ibcr_u_t ibcr;
ii_icmr_u_t icmr;
ii_ieclr_u_t ieclr;
BTE_PRINTK(("bte_error_handler(%p) - %d\n", err_nodepda,
BTE_PRINTK(("shub1_bte_error_handler(%p) - %d\n", err_nodepda,
smp_processor_id()));
spin_lock_irqsave(recovery_lock, irq_flags);
if ((err_nodepda->bte_if[0].bh_error == BTE_SUCCESS) &&
(err_nodepda->bte_if[1].bh_error == BTE_SUCCESS)) {
BTE_PRINTK(("eh:%p:%d Nothing to do.\n", err_nodepda,
smp_processor_id()));
spin_unlock_irqrestore(recovery_lock, irq_flags);
return;
}
/*
* Lock all interfaces on this node to prevent new transfers
* from being queued.
*/
for (i = 0; i < BTES_PER_NODE; i++) {
if (err_nodepda->bte_if[i].cleanup_active) {
continue;
}
spin_lock(&err_nodepda->bte_if[i].spinlock);
BTE_PRINTK(("eh:%p:%d locked %d\n", err_nodepda,
smp_processor_id(), i));
err_nodepda->bte_if[i].cleanup_active = 1;
}
/* Determine information about our hub */
nasid = cnodeid_to_nasid(err_nodepda->bte_if[0].bte_cnode);
@ -101,7 +81,6 @@ void bte_error_handler(unsigned long _nodepda)
mod_timer(recovery_timer, HZ * 5);
BTE_PRINTK(("eh:%p:%d Marked Giving up\n", err_nodepda,
smp_processor_id()));
spin_unlock_irqrestore(recovery_lock, irq_flags);
return;
}
if (icmr.ii_icmr_fld_s.i_crb_vld != 0) {
@ -120,8 +99,6 @@ void bte_error_handler(unsigned long _nodepda)
BTE_PRINTK(("eh:%p:%d Valid %d, Giving up\n",
err_nodepda, smp_processor_id(),
i));
spin_unlock_irqrestore(recovery_lock,
irq_flags);
return;
}
}
@ -146,6 +123,51 @@ void bte_error_handler(unsigned long _nodepda)
ibcr.ii_ibcr_fld_s.i_soft_reset = 1;
REMOTE_HUB_S(nasid, IIO_IBCR, ibcr.ii_ibcr_regval);
del_timer(recovery_timer);
}
/*
* Wait until all BTE related CRBs are completed
* and then reset the interfaces.
*/
void bte_error_handler(unsigned long _nodepda)
{
struct nodepda_s *err_nodepda = (struct nodepda_s *)_nodepda;
spinlock_t *recovery_lock = &err_nodepda->bte_recovery_lock;
int i;
nasid_t nasid;
unsigned long irq_flags;
volatile u64 *notify;
bte_result_t bh_error;
BTE_PRINTK(("bte_error_handler(%p) - %d\n", err_nodepda,
smp_processor_id()));
spin_lock_irqsave(recovery_lock, irq_flags);
/*
* Lock all interfaces on this node to prevent new transfers
* from being queued.
*/
for (i = 0; i < BTES_PER_NODE; i++) {
if (err_nodepda->bte_if[i].cleanup_active) {
continue;
}
spin_lock(&err_nodepda->bte_if[i].spinlock);
BTE_PRINTK(("eh:%p:%d locked %d\n", err_nodepda,
smp_processor_id(), i));
err_nodepda->bte_if[i].cleanup_active = 1;
}
if (is_shub1()) {
shub1_bte_error_handler(_nodepda);
} else {
nasid = cnodeid_to_nasid(err_nodepda->bte_if[0].bte_cnode);
if (ia64_sn_bte_recovery(nasid))
panic("bte_error_handler(): Fatal BTE Error");
}
for (i = 0; i < BTES_PER_NODE; i++) {
bh_error = err_nodepda->bte_if[i].bh_error;
if (bh_error != BTE_SUCCESS) {
@ -165,8 +187,6 @@ void bte_error_handler(unsigned long _nodepda)
spin_unlock(&err_nodepda->bte_if[i].spinlock);
}
del_timer(recovery_timer);
spin_unlock_irqrestore(recovery_lock, irq_flags);
}

9
arch/ia64/sn/kernel/huberror.c
View file

@ -3,7 +3,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 1992 - 1997, 2000,2002-2004 Silicon Graphics, Inc. All rights reserved.
* Copyright (C) 1992 - 1997, 2000,2002-2005 Silicon Graphics, Inc. All rights reserved.
*/
#include <linux/types.h>
@ -38,8 +38,11 @@ static irqreturn_t hub_eint_handler(int irq, void *arg, struct pt_regs *ep)
if ((int)ret_stuff.v0)
panic("hubii_eint_handler(): Fatal TIO Error");
if (!(nasid & 1)) /* Not a TIO, handle CRB errors */
(void)hubiio_crb_error_handler(hubdev_info);
if (is_shub1()) {
if (!(nasid & 1)) /* Not a TIO, handle CRB errors */
(void)hubiio_crb_error_handler(hubdev_info);
} else
bte_error_handler((unsigned long)NODEPDA(nasid_to_cnodeid(nasid)));
return IRQ_HANDLED;
}

78
arch/ia64/sn/kernel/io_init.c
View file

@ -11,14 +11,15 @@
#include <asm/sn/types.h>
#include <asm/sn/sn_sal.h>
#include <asm/sn/addrs.h>
#include "pci/pcibus_provider_defs.h"
#include "pci/pcidev.h"
#include <asm/sn/pcibus_provider_defs.h>
#include <asm/sn/pcidev.h>
#include "pci/pcibr_provider.h"
#include "xtalk/xwidgetdev.h"
#include <asm/sn/geo.h>
#include "xtalk/hubdev.h"
#include <asm/sn/io.h>
#include <asm/sn/simulator.h>
#include <asm/sn/tioca_provider.h>
char master_baseio_wid;
nasid_t master_nasid = INVALID_NASID; /* Partition Master */
@ -34,6 +35,37 @@ struct brick {
int sn_ioif_inited = 0; /* SN I/O infrastructure initialized? */
struct sn_pcibus_provider *sn_pci_provider[PCIIO_ASIC_MAX_TYPES]; /* indexed by asic type */
/*
* Hooks and struct for unsupported pci providers
*/
static dma_addr_t
sn_default_pci_map(struct pci_dev *pdev, unsigned long paddr, size_t size)
{
return 0;
}
static void
sn_default_pci_unmap(struct pci_dev *pdev, dma_addr_t addr, int direction)
{
return;
}
static void *
sn_default_pci_bus_fixup(struct pcibus_bussoft *soft)
{
return NULL;
}
static struct sn_pcibus_provider sn_pci_default_provider = {
.dma_map = sn_default_pci_map,
.dma_map_consistent = sn_default_pci_map,
.dma_unmap = sn_default_pci_unmap,
.bus_fixup = sn_default_pci_bus_fixup,
};
/*
* Retrieve the DMA Flush List given nasid. This list is needed
* to implement the WAR - Flush DMA data on PIO Reads.
@ -201,6 +233,7 @@ static void sn_pci_fixup_slot(struct pci_dev *dev)
struct sn_irq_info *sn_irq_info;
struct pci_dev *host_pci_dev;
int status = 0;
struct pcibus_bussoft *bs;
dev->sysdata = kmalloc(sizeof(struct pcidev_info), GFP_KERNEL);
if (SN_PCIDEV_INFO(dev) <= 0)
@ -241,6 +274,7 @@ static void sn_pci_fixup_slot(struct pci_dev *dev)
}
/* set up host bus linkages */
bs = SN_PCIBUS_BUSSOFT(dev->bus);
host_pci_dev =
pci_find_slot(SN_PCIDEV_INFO(dev)->pdi_slot_host_handle >> 32,
SN_PCIDEV_INFO(dev)->
@ -248,10 +282,16 @@ static void sn_pci_fixup_slot(struct pci_dev *dev)
SN_PCIDEV_INFO(dev)->pdi_host_pcidev_info =
SN_PCIDEV_INFO(host_pci_dev);
SN_PCIDEV_INFO(dev)->pdi_linux_pcidev = dev;
SN_PCIDEV_INFO(dev)->pdi_pcibus_info = SN_PCIBUS_BUSSOFT(dev->bus);
SN_PCIDEV_INFO(dev)->pdi_pcibus_info = bs;
if (bs && bs->bs_asic_type < PCIIO_ASIC_MAX_TYPES) {
SN_PCIDEV_BUSPROVIDER(dev) = sn_pci_provider[bs->bs_asic_type];
} else {
SN_PCIDEV_BUSPROVIDER(dev) = &sn_pci_default_provider;
}
/* Only set up IRQ stuff if this device has a host bus context */
if (SN_PCIDEV_BUSSOFT(dev) && sn_irq_info->irq_irq) {
if (bs && sn_irq_info->irq_irq) {
SN_PCIDEV_INFO(dev)->pdi_sn_irq_info = sn_irq_info;
dev->irq = SN_PCIDEV_INFO(dev)->pdi_sn_irq_info->irq_irq;
sn_irq_fixup(dev, sn_irq_info);
@ -271,6 +311,7 @@ static void sn_pci_controller_fixup(int segment, int busnum)
struct pcibus_bussoft *prom_bussoft_ptr;
struct hubdev_info *hubdev_info;
void *provider_soft;
struct sn_pcibus_provider *provider;
status =
sal_get_pcibus_info((u64) segment, (u64) busnum,
@ -291,16 +332,22 @@ static void sn_pci_controller_fixup(int segment, int busnum)
/*
* Per-provider fixup. Copies the contents from prom to local
* area and links SN_PCIBUS_BUSSOFT().
*
* Note: Provider is responsible for ensuring that prom_bussoft_ptr
* represents an asic-type that it can handle.
*/
if (prom_bussoft_ptr->bs_asic_type == PCIIO_ASIC_TYPE_PPB) {
return; /* no further fixup necessary */
if (prom_bussoft_ptr->bs_asic_type >= PCIIO_ASIC_MAX_TYPES) {
return; /* unsupported asic type */
}
provider = sn_pci_provider[prom_bussoft_ptr->bs_asic_type];
if (provider == NULL) {
return; /* no provider registerd for this asic */
}
provider_soft = NULL;
if (provider->bus_fixup) {
provider_soft = (*provider->bus_fixup) (prom_bussoft_ptr);
}
provider_soft = pcibr_bus_fixup(prom_bussoft_ptr);
if (provider_soft == NULL) {
return; /* fixup failed or not applicable */
}
@ -338,6 +385,17 @@ static int __init sn_pci_init(void)
if (!ia64_platform_is("sn2") || IS_RUNNING_ON_SIMULATOR())
return 0;
/*
* prime sn_pci_provider[]. Individial provider init routines will
* override their respective default entries.
*/
for (i = 0; i < PCIIO_ASIC_MAX_TYPES; i++)
sn_pci_provider[i] = &sn_pci_default_provider;
pcibr_init_provider();
tioca_init_provider();
/*
* This is needed to avoid bounce limit checks in the blk layer
*/

19
arch/ia64/sn/kernel/irq.c
View file

@ -13,8 +13,8 @@
#include <asm/sn/addrs.h>
#include <asm/sn/arch.h>
#include "xtalk/xwidgetdev.h"
#include "pci/pcibus_provider_defs.h"
#include "pci/pcidev.h"
#include <asm/sn/pcibus_provider_defs.h>
#include <asm/sn/pcidev.h>
#include "pci/pcibr_provider.h"
#include <asm/sn/shub_mmr.h>
#include <asm/sn/sn_sal.h>
@ -82,20 +82,9 @@ static void sn_ack_irq(unsigned int irq)
nasid = get_nasid();
event_occurred =
HUB_L((uint64_t *) GLOBAL_MMR_ADDR(nasid, SH_EVENT_OCCURRED));
if (event_occurred & SH_EVENT_OCCURRED_UART_INT_MASK) {
mask |= (1 << SH_EVENT_OCCURRED_UART_INT_SHFT);
}
if (event_occurred & SH_EVENT_OCCURRED_IPI_INT_MASK) {
mask |= (1 << SH_EVENT_OCCURRED_IPI_INT_SHFT);
}
if (event_occurred & SH_EVENT_OCCURRED_II_INT0_MASK) {
mask |= (1 << SH_EVENT_OCCURRED_II_INT0_SHFT);
}
if (event_occurred & SH_EVENT_OCCURRED_II_INT1_MASK) {
mask |= (1 << SH_EVENT_OCCURRED_II_INT1_SHFT);
}
mask = event_occurred & SH_ALL_INT_MASK;
HUB_S((uint64_t *) GLOBAL_MMR_ADDR(nasid, SH_EVENT_OCCURRED_ALIAS),
mask);
mask);
__set_bit(irq, (volatile void *)pda->sn_in_service_ivecs);
move_irq(irq);

9
arch/ia64/sn/kernel/setup.c
View file

@ -29,6 +29,7 @@
#include <linux/sched.h>
#include <linux/root_dev.h>
#include <linux/nodemask.h>
#include <linux/pm.h>
#include <asm/io.h>
#include <asm/sal.h>
@ -353,6 +354,14 @@ void __init sn_setup(char **cmdline_p)
screen_info = sn_screen_info;
sn_timer_init();
/*
* set pm_power_off to a SAL call to allow
* sn machines to power off. The SAL call can be replaced
* by an ACPI interface call when ACPI is fully implemented
* for sn.
*/
pm_power_off = ia64_sn_power_down;
}
/**

112
arch/ia64/sn/kernel/sn2/sn_hwperf.c
View file

@ -28,6 +28,7 @@
#include <linux/vmalloc.h>
#include <linux/seq_file.h>
#include <linux/miscdevice.h>
#include <linux/utsname.h>
#include <linux/cpumask.h>
#include <linux/smp_lock.h>
#include <linux/nodemask.h>
@ -43,6 +44,7 @@
#include <asm/sn/module.h>
#include <asm/sn/geo.h>
#include <asm/sn/sn2/sn_hwperf.h>
#include <asm/sn/addrs.h>
static void *sn_hwperf_salheap = NULL;
static int sn_hwperf_obj_cnt = 0;
@ -81,26 +83,45 @@ static int sn_hwperf_enum_objects(int *nobj, struct sn_hwperf_object_info **ret)
return e;
}
static int sn_hwperf_location_to_bpos(char *location,
int *rack, int *bay, int *slot, int *slab)
{
char type;
/* first scan for an old style geoid string */
if (sscanf(location, "%03d%c%02d#%d",
rack, &type, bay, slab) == 4)
*slot = 0;
else /* scan for a new bladed geoid string */
if (sscanf(location, "%03d%c%02d^%02d#%d",
rack, &type, bay, slot, slab) != 5)
return -1;
/* success */
return 0;
}
static int sn_hwperf_geoid_to_cnode(char *location)
{
int cnode;
geoid_t geoid;
moduleid_t module_id;
char type;
int rack, slot, slab;
int this_rack, this_slot, this_slab;
int rack, bay, slot, slab;
int this_rack, this_bay, this_slot, this_slab;
if (sscanf(location, "%03d%c%02d#%d", &rack, &type, &slot, &slab) != 4)
if (sn_hwperf_location_to_bpos(location, &rack, &bay, &slot, &slab))
return -1;
for (cnode = 0; cnode < numionodes; cnode++) {
geoid = cnodeid_get_geoid(cnode);
module_id = geo_module(geoid);
this_rack = MODULE_GET_RACK(module_id);
this_slot = MODULE_GET_BPOS(module_id);
this_bay = MODULE_GET_BPOS(module_id);
this_slot = geo_slot(geoid);
this_slab = geo_slab(geoid);
if (rack == this_rack && slot == this_slot && slab == this_slab)
if (rack == this_rack && bay == this_bay &&
slot == this_slot && slab == this_slab) {
break;
}
}
return cnode < numionodes ? cnode : -1;
@ -153,11 +174,36 @@ static const char *sn_hwperf_get_slabname(struct sn_hwperf_object_info *obj,
return slabname;
}
static void print_pci_topology(struct seq_file *s,
struct sn_hwperf_object_info *obj, int *ordinal,
u64 rack, u64 bay, u64 slot, u64 slab)
{
char *p1;
char *p2;
char *pg;
if (!(pg = (char *)get_zeroed_page(GFP_KERNEL)))
return; /* ignore */
if (ia64_sn_ioif_get_pci_topology(rack, bay, slot, slab,
__pa(pg), PAGE_SIZE) == SN_HWPERF_OP_OK) {
for (p1=pg; *p1 && p1 < pg + PAGE_SIZE;) {
if (!(p2 = strchr(p1, '\n')))
break;
*p2 = '\0';
seq_printf(s, "pcibus %d %s-%s\n",
*ordinal, obj->location, p1);
(*ordinal)++;
p1 = p2 + 1;
}
}
free_page((unsigned long)pg);
}
static int sn_topology_show(struct seq_file *s, void *d)
{
int sz;
int pt;
int e;
int e = 0;
int i;
int j;
const char *slabname;
@ -169,11 +215,44 @@ static int sn_topology_show(struct seq_file *s, void *d)
struct sn_hwperf_object_info *p;
struct sn_hwperf_object_info *obj = d; /* this object */
struct sn_hwperf_object_info *objs = s->private; /* all objects */
int rack, bay, slot, slab;
u8 shubtype;
u8 system_size;
u8 sharing_size;
u8 partid;
u8 coher;
u8 nasid_shift;
u8 region_size;
u16 nasid_mask;
int nasid_msb;
int pci_bus_ordinal = 0;
if (obj == objs) {
seq_printf(s, "# sn_topology version 1\n");
seq_printf(s, "# sn_topology version 2\n");
seq_printf(s, "# objtype ordinal location partition"
" [attribute value [, ...]]\n");
if (ia64_sn_get_sn_info(0,
&shubtype, &nasid_mask, &nasid_shift, &system_size,
&sharing_size, &partid, &coher, &region_size))
BUG();
for (nasid_msb=63; nasid_msb > 0; nasid_msb--) {
if (((u64)nasid_mask << nasid_shift) & (1ULL << nasid_msb))
break;
}
seq_printf(s, "partition %u %s local "
"shubtype %s, "
"nasid_mask 0x%016lx, "
"nasid_bits %d:%d, "
"system_size %d, "
"sharing_size %d, "
"coherency_domain %d, "
"region_size %d\n",
partid, system_utsname.nodename,
shubtype ? "shub2" : "shub1",
(u64)nasid_mask << nasid_shift, nasid_msb, nasid_shift,
system_size, sharing_size, coher, region_size);
}
if (SN_HWPERF_FOREIGN(obj)) {
@ -181,7 +260,7 @@ static int sn_topology_show(struct seq_file *s, void *d)
return 0;
}
for (i = 0; obj->name[i]; i++) {
for (i = 0; i < SN_HWPERF_MAXSTRING && obj->name[i]; i++) {
if (obj->name[i] == ' ')
obj->name[i] = '_';
}
@ -221,6 +300,17 @@ static int sn_topology_show(struct seq_file *s, void *d)
seq_putc(s, '\n');
}
}
/*
* PCI busses attached to this node, if any
*/
if (sn_hwperf_location_to_bpos(obj->location,
&rack, &bay, &slot, &slab)) {
/* export pci bus info */
print_pci_topology(s, obj, &pci_bus_ordinal,
rack, bay, slot, slab);
}
}
if (obj->ports) {
@ -397,6 +487,9 @@ static int sn_hwperf_map_err(int hwperf_err)
break;
case SN_HWPERF_OP_BUSY:
e = -EBUSY;
break;
case SN_HWPERF_OP_RECONFIGURE:
e = -EAGAIN;
break;
@ -549,6 +642,7 @@ sn_hwperf_ioctl(struct inode *in, struct file *fp, u32 op, u64 arg)
r = sn_hwperf_op_cpu(&op_info);
if (r) {
r = sn_hwperf_map_err(r);
a.v0 = v0;
goto error;
}
break;

548
arch/ia64/sn/kernel/tiocx.c Normal file
View file

@ -0,0 +1,548 @@
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (c) 2005 Silicon Graphics, Inc. All rights reserved.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/version.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/proc_fs.h>
#include <linux/device.h>
#include <linux/delay.h>
#include <asm/uaccess.h>
#include <asm/sn/sn_sal.h>
#include <asm/sn/addrs.h>
#include <asm/sn/io.h>
#include <asm/sn/types.h>
#include <asm/sn/shubio.h>
#include <asm/sn/tiocx.h>
#include "tio.h"
#include "xtalk/xwidgetdev.h"
#include "xtalk/hubdev.h"
#define CX_DEV_NONE 0
#define DEVICE_NAME "tiocx"
#define WIDGET_ID 0
#define TIOCX_DEBUG 0
#if TIOCX_DEBUG
#define DBG(fmt...) printk(KERN_ALERT fmt)
#else
#define DBG(fmt...)
#endif
struct device_attribute dev_attr_cxdev_control;
/**
* tiocx_match - Try to match driver id list with device.
* @dev: device pointer
* @drv: driver pointer
*
* Returns 1 if match, 0 otherwise.
*/
static int tiocx_match(struct device *dev, struct device_driver *drv)
{
struct cx_dev *cx_dev = to_cx_dev(dev);
struct cx_drv *cx_drv = to_cx_driver(drv);
const struct cx_device_id *ids = cx_drv->id_table;
if (!ids)
return 0;
while (ids->part_num) {
if (ids->part_num == cx_dev->cx_id.part_num)
return 1;
ids++;
}
return 0;
}
static int tiocx_hotplug(struct device *dev, char **envp, int num_envp,
char *buffer, int buffer_size)
{
return -ENODEV;
}
static void tiocx_bus_release(struct device *dev)
{
kfree(to_cx_dev(dev));
}
struct bus_type tiocx_bus_type = {
.name = "tiocx",
.match = tiocx_match,
.hotplug = tiocx_hotplug,
};
/**
* cx_device_match - Find cx_device in the id table.
* @ids: id table from driver
* @cx_device: part/mfg id for the device
*
*/
static const struct cx_device_id *cx_device_match(const struct cx_device_id
*ids,
struct cx_dev *cx_device)
{
/*
* NOTES: We may want to check for CX_ANY_ID too.
* Do we want to match against nasid too?
* CX_DEV_NONE == 0, if the driver tries to register for
* part/mfg == 0 we should return no-match (NULL) here.
*/
while (ids->part_num && ids->mfg_num) {
if (ids->part_num == cx_device->cx_id.part_num &&
ids->mfg_num == cx_device->cx_id.mfg_num)
return ids;
ids++;
}
return NULL;
}
/**
* cx_device_probe - Look for matching device.
* Call driver probe routine if found.
* @cx_driver: driver table (cx_drv struct) from driver
* @cx_device: part/mfg id for the device
*/
static int cx_device_probe(struct device *dev)
{
const struct cx_device_id *id;
struct cx_drv *cx_drv = to_cx_driver(dev->driver);
struct cx_dev *cx_dev = to_cx_dev(dev);
int error = 0;
if (!cx_dev->driver && cx_drv->probe) {
id = cx_device_match(cx_drv->id_table, cx_dev);
if (id) {
if ((error = cx_drv->probe(cx_dev, id)) < 0)
return error;
else
cx_dev->driver = cx_drv;
}
}
return error;
}
/**
* cx_driver_remove - Remove driver from device struct.
* @dev: device
*/
static int cx_driver_remove(struct device *dev)
{
struct cx_dev *cx_dev = to_cx_dev(dev);
struct cx_drv *cx_drv = cx_dev->driver;
if (cx_drv->remove)
cx_drv->remove(cx_dev);
cx_dev->driver = NULL;
return 0;
}
/**
* cx_driver_register - Register the driver.
* @cx_driver: driver table (cx_drv struct) from driver
*
* Called from the driver init routine to register a driver.
* The cx_drv struct contains the driver name, a pointer to
* a table of part/mfg numbers and a pointer to the driver's
* probe/attach routine.
*/
int cx_driver_register(struct cx_drv *cx_driver)
{
cx_driver->driver.name = cx_driver->name;
cx_driver->driver.bus = &tiocx_bus_type;
cx_driver->driver.probe = cx_device_probe;
cx_driver->driver.remove = cx_driver_remove;
return driver_register(&cx_driver->driver);
}
/**
* cx_driver_unregister - Unregister the driver.
* @cx_driver: driver table (cx_drv struct) from driver
*/
int cx_driver_unregister(struct cx_drv *cx_driver)
{
driver_unregister(&cx_driver->driver);
return 0;
}
/**
* cx_device_register - Register a device.
* @nasid: device's nasid
* @part_num: device's part number
* @mfg_num: device's manufacturer number
* @hubdev: hub info associated with this device
*
*/
int
cx_device_register(nasid_t nasid, int part_num, int mfg_num,
struct hubdev_info *hubdev)
{
struct cx_dev *cx_dev;
cx_dev = kcalloc(1, sizeof(struct cx_dev), GFP_KERNEL);
DBG("cx_dev= 0x%p\n", cx_dev);
if (cx_dev == NULL)
return -ENOMEM;
cx_dev->cx_id.part_num = part_num;
cx_dev->cx_id.mfg_num = mfg_num;
cx_dev->cx_id.nasid = nasid;
cx_dev->hubdev = hubdev;
cx_dev->dev.parent = NULL;
cx_dev->dev.bus = &tiocx_bus_type;
cx_dev->dev.release = tiocx_bus_release;
snprintf(cx_dev->dev.bus_id, BUS_ID_SIZE, "%d.0x%x",
cx_dev->cx_id.nasid, cx_dev->cx_id.part_num);
device_register(&cx_dev->dev);
get_device(&cx_dev->dev);
device_create_file(&cx_dev->dev, &dev_attr_cxdev_control);
return 0;
}
/**
* cx_device_unregister - Unregister a device.
* @cx_dev: part/mfg id for the device
*/
int cx_device_unregister(struct cx_dev *cx_dev)
{
put_device(&cx_dev->dev);
device_unregister(&cx_dev->dev);
return 0;
}
/**
* cx_device_reload - Reload the device.
* @nasid: device's nasid
* @part_num: device's part number
* @mfg_num: device's manufacturer number
*
* Remove the device associated with 'nasid' from device list and then
* call device-register with the given part/mfg numbers.
*/
static int cx_device_reload(struct cx_dev *cx_dev)
{
device_remove_file(&cx_dev->dev, &dev_attr_cxdev_control);
cx_device_unregister(cx_dev);
return cx_device_register(cx_dev->cx_id.nasid, cx_dev->cx_id.part_num,
cx_dev->cx_id.mfg_num, cx_dev->hubdev);
}
static inline uint64_t tiocx_intr_alloc(nasid_t nasid, int widget,
u64 sn_irq_info,
int req_irq, nasid_t req_nasid,
int req_slice)
{
struct ia64_sal_retval rv;
rv.status = 0;
rv.v0 = 0;
ia64_sal_oemcall_nolock(&rv, SN_SAL_IOIF_INTERRUPT,
SAL_INTR_ALLOC, nasid,
widget, sn_irq_info, req_irq,
req_nasid, req_slice);
return rv.status;
}
static inline void tiocx_intr_free(nasid_t nasid, int widget,
struct sn_irq_info *sn_irq_info)
{
struct ia64_sal_retval rv;
rv.status = 0;
rv.v0 = 0;
ia64_sal_oemcall_nolock(&rv, SN_SAL_IOIF_INTERRUPT,
SAL_INTR_FREE, nasid,
widget, sn_irq_info->irq_irq,
sn_irq_info->irq_cookie, 0, 0);
}
struct sn_irq_info *tiocx_irq_alloc(nasid_t nasid, int widget, int irq,
nasid_t req_nasid, int slice)
{
struct sn_irq_info *sn_irq_info;
int status;
int sn_irq_size = sizeof(struct sn_irq_info);
if ((nasid & 1) == 0)
return NULL;
sn_irq_info = kmalloc(sn_irq_size, GFP_KERNEL);
if (sn_irq_info == NULL)
return NULL;
memset(sn_irq_info, 0x0, sn_irq_size);
status = tiocx_intr_alloc(nasid, widget, __pa(sn_irq_info), irq,
req_nasid, slice);
if (status) {
kfree(sn_irq_info);
return NULL;
} else {
return sn_irq_info;
}
}
void tiocx_irq_free(struct sn_irq_info *sn_irq_info)
{
uint64_t bridge = (uint64_t) sn_irq_info->irq_bridge;
nasid_t nasid = NASID_GET(bridge);
int widget;
if (nasid & 1) {
widget = TIO_SWIN_WIDGETNUM(bridge);
tiocx_intr_free(nasid, widget, sn_irq_info);
kfree(sn_irq_info);
}
}
uint64_t
tiocx_dma_addr(uint64_t addr)
{
return PHYS_TO_TIODMA(addr);
}
uint64_t
tiocx_swin_base(int nasid)
{
return TIO_SWIN_BASE(nasid, TIOCX_CORELET);
}
EXPORT_SYMBOL(cx_driver_register);
EXPORT_SYMBOL(cx_driver_unregister);
EXPORT_SYMBOL(cx_device_register);
EXPORT_SYMBOL(cx_device_unregister);
EXPORT_SYMBOL(tiocx_irq_alloc);
EXPORT_SYMBOL(tiocx_irq_free);
EXPORT_SYMBOL(tiocx_bus_type);
EXPORT_SYMBOL(tiocx_dma_addr);
EXPORT_SYMBOL(tiocx_swin_base);
static uint64_t tiocx_get_hubdev_info(u64 handle, u64 address)
{
struct ia64_sal_retval ret_stuff;
ret_stuff.status = 0;
ret_stuff.v0 = 0;
ia64_sal_oemcall_nolock(&ret_stuff,
SN_SAL_IOIF_GET_HUBDEV_INFO,
handle, address, 0, 0, 0, 0, 0);
return ret_stuff.v0;
}
static void tio_conveyor_set(nasid_t nasid, int enable_flag)
{
uint64_t ice_frz;
uint64_t disable_cb = (1ull << 61);
if (!(nasid & 1))
return;
ice_frz = REMOTE_HUB_L(nasid, TIO_ICE_FRZ_CFG);
if (enable_flag) {
if (!(ice_frz & disable_cb)) /* already enabled */
return;
ice_frz &= ~disable_cb;
} else {
if (ice_frz & disable_cb) /* already disabled */
return;
ice_frz |= disable_cb;
}
DBG(KERN_ALERT "TIO_ICE_FRZ_CFG= 0x%lx\n", ice_frz);
REMOTE_HUB_S(nasid, TIO_ICE_FRZ_CFG, ice_frz);
}
#define tio_conveyor_enable(nasid) tio_conveyor_set(nasid, 1)
#define tio_conveyor_disable(nasid) tio_conveyor_set(nasid, 0)
static void tio_corelet_reset(nasid_t nasid, int corelet)
{
if (!(nasid & 1))
return;
REMOTE_HUB_S(nasid, TIO_ICE_PMI_TX_CFG, 1 << corelet);
udelay(2000);
REMOTE_HUB_S(nasid, TIO_ICE_PMI_TX_CFG, 0);
udelay(2000);
}
static int fpga_attached(nasid_t nasid)
{
uint64_t cx_credits;
cx_credits = REMOTE_HUB_L(nasid, TIO_ICE_PMI_TX_DYN_CREDIT_STAT_CB3);
cx_credits &= TIO_ICE_PMI_TX_DYN_CREDIT_STAT_CB3_CREDIT_CNT_MASK;
DBG("cx_credits= 0x%lx\n", cx_credits);
return (cx_credits == 0xf) ? 1 : 0;
}
static int tiocx_reload(struct cx_dev *cx_dev)
{
int part_num = CX_DEV_NONE;
int mfg_num = CX_DEV_NONE;
nasid_t nasid = cx_dev->cx_id.nasid;
if (fpga_attached(nasid)) {
uint64_t cx_id;
cx_id =
*(volatile int32_t *)(TIO_SWIN_BASE(nasid, TIOCX_CORELET) +
WIDGET_ID);
part_num = XWIDGET_PART_NUM(cx_id);
mfg_num = XWIDGET_MFG_NUM(cx_id);
DBG("part= 0x%x, mfg= 0x%x\n", part_num, mfg_num);
/* just ignore it if it's a CE */
if (part_num == TIO_CE_ASIC_PARTNUM)
return 0;
}
cx_dev->cx_id.part_num = part_num;
cx_dev->cx_id.mfg_num = mfg_num;
/*
* Delete old device and register the new one. It's ok if
* part_num/mfg_num == CX_DEV_NONE. We want to register
* devices in the table even if a bitstream isn't loaded.
* That allows use to see that a bitstream isn't loaded via
* TIOCX_IOCTL_DEV_LIST.
*/
return cx_device_reload(cx_dev);
}
static ssize_t show_cxdev_control(struct device *dev, char *buf)
{
struct cx_dev *cx_dev = to_cx_dev(dev);
return sprintf(buf, "0x%x 0x%x 0x%x\n",
cx_dev->cx_id.nasid,
cx_dev->cx_id.part_num, cx_dev->cx_id.mfg_num);
}
static ssize_t store_cxdev_control(struct device *dev, const char *buf,
size_t count)
{
int n;
struct cx_dev *cx_dev = to_cx_dev(dev);
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
if (count <= 0)
return 0;
n = simple_strtoul(buf, NULL, 0);
switch (n) {
case 1:
tiocx_reload(cx_dev);
break;
case 3:
tio_corelet_reset(cx_dev->cx_id.nasid, TIOCX_CORELET);
break;
default:
break;
}
return count;
}
DEVICE_ATTR(cxdev_control, 0644, show_cxdev_control, store_cxdev_control);
static int __init tiocx_init(void)
{
cnodeid_t cnodeid;
int found_tiocx_device = 0;
bus_register(&tiocx_bus_type);
for (cnodeid = 0; cnodeid < MAX_COMPACT_NODES; cnodeid++) {
nasid_t nasid;
if ((nasid = cnodeid_to_nasid(cnodeid)) < 0)
break; /* No more nasids .. bail out of loop */
if (nasid & 0x1) { /* TIO's are always odd */
struct hubdev_info *hubdev;
uint64_t status;
struct xwidget_info *widgetp;
DBG("Found TIO at nasid 0x%x\n", nasid);
hubdev =
(struct hubdev_info *)(NODEPDA(cnodeid)->pdinfo);
status =
tiocx_get_hubdev_info(nasid,
(uint64_t) __pa(hubdev));
if (status)
continue;
widgetp = &hubdev->hdi_xwidget_info[TIOCX_CORELET];
/* The CE hangs off of the CX port but is not an FPGA */
if (widgetp->xwi_hwid.part_num == TIO_CE_ASIC_PARTNUM)
continue;
tio_corelet_reset(nasid, TIOCX_CORELET);
tio_conveyor_enable(nasid);
if (cx_device_register
(nasid, widgetp->xwi_hwid.part_num,
widgetp->xwi_hwid.mfg_num, hubdev) < 0)
return -ENXIO;
else
found_tiocx_device++;
}
}
/* It's ok if we find zero devices. */
DBG("found_tiocx_device= %d\n", found_tiocx_device);
return 0;
}
static void __exit tiocx_exit(void)
{
struct device *dev;
struct device *tdev;
DBG("tiocx_exit\n");
/*
* Unregister devices.
*/
list_for_each_entry_safe(dev, tdev, &tiocx_bus_type.devices.list,
bus_list) {
if (dev) {
struct cx_dev *cx_dev = to_cx_dev(dev);
device_remove_file(dev, &dev_attr_cxdev_control);
cx_device_unregister(cx_dev);
}
}
bus_unregister(&tiocx_bus_type);
}
module_init(tiocx_init);
module_exit(tiocx_exit);
/************************************************************************
* Module licensing and description
************************************************************************/
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Bruce Losure <blosure@sgi.com>");
MODULE_DESCRIPTION("TIOCX module");
MODULE_SUPPORTED_DEVICE(DEVICE_NAME);

2
arch/ia64/sn/pci/Makefile
View file

@ -7,4 +7,4 @@
#
# Makefile for the sn pci general routines.
obj-y := pci_dma.o pcibr/
obj-y := pci_dma.o tioca_provider.o pcibr/

39
arch/ia64/sn/pci/pci_dma.c
View file

@ -12,9 +12,8 @@
#include <linux/module.h>
#include <asm/dma.h>
#include <asm/sn/sn_sal.h>
#include "pci/pcibus_provider_defs.h"
#include "pci/pcidev.h"
#include "pci/pcibr_provider.h"
#include <asm/sn/pcibus_provider_defs.h>
#include <asm/sn/pcidev.h>
#define SG_ENT_VIRT_ADDRESS(sg) (page_address((sg)->page) + (sg)->offset)
#define SG_ENT_PHYS_ADDRESS(SG) virt_to_phys(SG_ENT_VIRT_ADDRESS(SG))
@ -79,7 +78,8 @@ void *sn_dma_alloc_coherent(struct device *dev, size_t size,
{
void *cpuaddr;
unsigned long phys_addr;
struct pcidev_info *pcidev_info = SN_PCIDEV_INFO(to_pci_dev(dev));
struct pci_dev *pdev = to_pci_dev(dev);
struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev);
BUG_ON(dev->bus != &pci_bus_type);
@ -102,8 +102,7 @@ void *sn_dma_alloc_coherent(struct device *dev, size_t size,
* resources.
*/
*dma_handle = pcibr_dma_map(pcidev_info, phys_addr, size,
SN_PCIDMA_CONSISTENT);
*dma_handle = provider->dma_map_consistent(pdev, phys_addr, size);
if (!*dma_handle) {
printk(KERN_ERR "%s: out of ATEs\n", __FUNCTION__);
free_pages((unsigned long)cpuaddr, get_order(size));
@ -127,11 +126,12 @@ EXPORT_SYMBOL(sn_dma_alloc_coherent);
void sn_dma_free_coherent(struct device *dev, size_t size, void *cpu_addr,
dma_addr_t dma_handle)
{
struct pcidev_info *pcidev_info = SN_PCIDEV_INFO(to_pci_dev(dev));
struct pci_dev *pdev = to_pci_dev(dev);
struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev);
BUG_ON(dev->bus != &pci_bus_type);
pcibr_dma_unmap(pcidev_info, dma_handle, 0);
provider->dma_unmap(pdev, dma_handle, 0);
free_pages((unsigned long)cpu_addr, get_order(size));
}
EXPORT_SYMBOL(sn_dma_free_coherent);
@ -159,12 +159,13 @@ dma_addr_t sn_dma_map_single(struct device *dev, void *cpu_addr, size_t size,
{
dma_addr_t dma_addr;
unsigned long phys_addr;
struct pcidev_info *pcidev_info = SN_PCIDEV_INFO(to_pci_dev(dev));
struct pci_dev *pdev = to_pci_dev(dev);
struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev);
BUG_ON(dev->bus != &pci_bus_type);
phys_addr = __pa(cpu_addr);
dma_addr = pcibr_dma_map(pcidev_info, phys_addr, size, 0);
dma_addr = provider->dma_map(pdev, phys_addr, size);
if (!dma_addr) {
printk(KERN_ERR "%s: out of ATEs\n", __FUNCTION__);
return 0;
@ -187,10 +188,12 @@ EXPORT_SYMBOL(sn_dma_map_single);
void sn_dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
int direction)
{
struct pcidev_info *pcidev_info = SN_PCIDEV_INFO(to_pci_dev(dev));
struct pci_dev *pdev = to_pci_dev(dev);
struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev);
BUG_ON(dev->bus != &pci_bus_type);
pcibr_dma_unmap(pcidev_info, dma_addr, direction);
provider->dma_unmap(pdev, dma_addr, direction);
}
EXPORT_SYMBOL(sn_dma_unmap_single);
@ -207,12 +210,13 @@ void sn_dma_unmap_sg(struct device *dev, struct scatterlist *sg,
int nhwentries, int direction)
{
int i;
struct pcidev_info *pcidev_info = SN_PCIDEV_INFO(to_pci_dev(dev));
struct pci_dev *pdev = to_pci_dev(dev);
struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev);
BUG_ON(dev->bus != &pci_bus_type);
for (i = 0; i < nhwentries; i++, sg++) {
pcibr_dma_unmap(pcidev_info, sg->dma_address, direction);
provider->dma_unmap(pdev, sg->dma_address, direction);
sg->dma_address = (dma_addr_t) NULL;
sg->dma_length = 0;
}
@ -233,7 +237,8 @@ int sn_dma_map_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
{
unsigned long phys_addr;
struct scatterlist *saved_sg = sg;
struct pcidev_info *pcidev_info = SN_PCIDEV_INFO(to_pci_dev(dev));
struct pci_dev *pdev = to_pci_dev(dev);
struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev);
int i;
BUG_ON(dev->bus != &pci_bus_type);
@ -243,8 +248,8 @@ int sn_dma_map_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
*/
for (i = 0; i < nhwentries; i++, sg++) {
phys_addr = SG_ENT_PHYS_ADDRESS(sg);
sg->dma_address = pcibr_dma_map(pcidev_info, phys_addr,
sg->length, 0);
sg->dma_address = provider->dma_map(pdev,
phys_addr, sg->length);
if (!sg->dma_address) {
printk(KERN_ERR "%s: out of ATEs\n", __FUNCTION__);

4
arch/ia64/sn/pci/pcibr/pcibr_ate.c
View file

@ -8,8 +8,8 @@
#include <linux/types.h>
#include <asm/sn/sn_sal.h>
#include "pci/pcibus_provider_defs.h"
#include "pci/pcidev.h"
#include <asm/sn/pcibus_provider_defs.h>
#include <asm/sn/pcidev.h>
#include "pci/pcibr_provider.h"
int pcibr_invalidate_ate = 0; /* by default don't invalidate ATE on free */

107
arch/ia64/sn/pci/pcibr/pcibr_dma.c
View file

@ -12,8 +12,8 @@
#include <asm/sn/geo.h>
#include "xtalk/xwidgetdev.h"
#include "xtalk/hubdev.h"
#include "pci/pcibus_provider_defs.h"
#include "pci/pcidev.h"
#include <asm/sn/pcibus_provider_defs.h>
#include <asm/sn/pcidev.h>
#include "pci/tiocp.h"
#include "pci/pic.h"
#include "pci/pcibr_provider.h"
@ -40,7 +40,7 @@ extern int sn_ioif_inited;
* we do not have to allocate entries in the PMU.
*/
static uint64_t
static dma_addr_t
pcibr_dmamap_ate32(struct pcidev_info *info,
uint64_t paddr, size_t req_size, uint64_t flags)
{
@ -109,7 +109,7 @@ pcibr_dmamap_ate32(struct pcidev_info *info,
return pci_addr;
}
static uint64_t
static dma_addr_t
pcibr_dmatrans_direct64(struct pcidev_info * info, uint64_t paddr,
uint64_t dma_attributes)
{
@ -141,7 +141,7 @@ pcibr_dmatrans_direct64(struct pcidev_info * info, uint64_t paddr,
}
static uint64_t
static dma_addr_t
pcibr_dmatrans_direct32(struct pcidev_info * info,
uint64_t paddr, size_t req_size, uint64_t flags)
{
@ -180,11 +180,11 @@ pcibr_dmatrans_direct32(struct pcidev_info * info,
* DMA mappings for Direct 64 and 32 do not have any DMA maps.
*/
void
pcibr_dma_unmap(struct pcidev_info *pcidev_info, dma_addr_t dma_handle,
int direction)
pcibr_dma_unmap(struct pci_dev *hwdev, dma_addr_t dma_handle, int direction)
{
struct pcibus_info *pcibus_info = (struct pcibus_info *)pcidev_info->
pdi_pcibus_info;
struct pcidev_info *pcidev_info = SN_PCIDEV_INFO(hwdev);
struct pcibus_info *pcibus_info =
(struct pcibus_info *)pcidev_info->pdi_pcibus_info;
if (IS_PCI32_MAPPED(dma_handle)) {
int ate_index;
@ -316,64 +316,63 @@ void sn_dma_flush(uint64_t addr)
}
/*
* Wrapper DMA interface. Called from pci_dma.c routines.
* DMA interfaces. Called from pci_dma.c routines.
*/
uint64_t
pcibr_dma_map(struct pcidev_info * pcidev_info, unsigned long phys_addr,
size_t size, unsigned int flags)
dma_addr_t
pcibr_dma_map(struct pci_dev * hwdev, unsigned long phys_addr, size_t size)
{
dma_addr_t dma_handle;
struct pci_dev *pcidev = pcidev_info->pdi_linux_pcidev;
struct pcidev_info *pcidev_info = SN_PCIDEV_INFO(hwdev);
if (flags & SN_PCIDMA_CONSISTENT) {
/* sn_pci_alloc_consistent interfaces */
if (pcidev->dev.coherent_dma_mask == ~0UL) {
dma_handle =
pcibr_dmatrans_direct64(pcidev_info, phys_addr,
PCI64_ATTR_BAR);
} else {
dma_handle =
(dma_addr_t) pcibr_dmamap_ate32(pcidev_info,
phys_addr, size,
PCI32_ATE_BAR);
}
/* SN cannot support DMA addresses smaller than 32 bits. */
if (hwdev->dma_mask < 0x7fffffff) {
return 0;
}
if (hwdev->dma_mask == ~0UL) {
/*
* Handle the most common case: 64 bit cards. This
* call should always succeed.
*/
dma_handle = pcibr_dmatrans_direct64(pcidev_info, phys_addr,
PCI64_ATTR_PREF);
} else {
/* map_sg/map_single interfaces */
/* SN cannot support DMA addresses smaller than 32 bits. */
if (pcidev->dma_mask < 0x7fffffff) {
return 0;
}
if (pcidev->dma_mask == ~0UL) {
/* Handle 32-63 bit cards via direct mapping */
dma_handle = pcibr_dmatrans_direct32(pcidev_info, phys_addr,
size, 0);
if (!dma_handle) {
/*
* Handle the most common case: 64 bit cards. This
* call should always succeed.
* It is a 32 bit card and we cannot do direct mapping,
* so we use an ATE.
*/
dma_handle =
pcibr_dmatrans_direct64(pcidev_info, phys_addr,
PCI64_ATTR_PREF);
} else {
/* Handle 32-63 bit cards via direct mapping */
dma_handle =
pcibr_dmatrans_direct32(pcidev_info, phys_addr,
size, 0);
if (!dma_handle) {
/*
* It is a 32 bit card and we cannot do direct mapping,
* so we use an ATE.
*/
dma_handle =
pcibr_dmamap_ate32(pcidev_info, phys_addr,
size, PCI32_ATE_PREF);
}
dma_handle = pcibr_dmamap_ate32(pcidev_info, phys_addr,
size, PCI32_ATE_PREF);
}
}
return dma_handle;
}
dma_addr_t
pcibr_dma_map_consistent(struct pci_dev * hwdev, unsigned long phys_addr,
size_t size)
{
dma_addr_t dma_handle;
struct pcidev_info *pcidev_info = SN_PCIDEV_INFO(hwdev);
if (hwdev->dev.coherent_dma_mask == ~0UL) {
dma_handle = pcibr_dmatrans_direct64(pcidev_info, phys_addr,
PCI64_ATTR_BAR);
} else {
dma_handle = (dma_addr_t) pcibr_dmamap_ate32(pcidev_info,
phys_addr, size,
PCI32_ATE_BAR);
}
return dma_handle;
}
EXPORT_SYMBOL(sn_dma_flush);

24
arch/ia64/sn/pci/pcibr/pcibr_provider.c
View file

@ -13,8 +13,8 @@
#include "xtalk/xwidgetdev.h"
#include <asm/sn/geo.h>
#include "xtalk/hubdev.h"
#include "pci/pcibus_provider_defs.h"
#include "pci/pcidev.h"
#include <asm/sn/pcibus_provider_defs.h>
#include <asm/sn/pcidev.h>
#include "pci/pcibr_provider.h"
#include <asm/sn/addrs.h>
@ -168,3 +168,23 @@ void pcibr_change_devices_irq(struct sn_irq_info *sn_irq_info)
pcibr_force_interrupt(sn_irq_info);
}
}
/*
* Provider entries for PIC/CP
*/
struct sn_pcibus_provider pcibr_provider = {
.dma_map = pcibr_dma_map,
.dma_map_consistent = pcibr_dma_map_consistent,
.dma_unmap = pcibr_dma_unmap,
.bus_fixup = pcibr_bus_fixup,
};
int
pcibr_init_provider(void)
{
sn_pci_provider[PCIIO_ASIC_TYPE_PIC] = &pcibr_provider;
sn_pci_provider[PCIIO_ASIC_TYPE_TIOCP] = &pcibr_provider;
return 0;
}

4
arch/ia64/sn/pci/pcibr/pcibr_reg.c
View file

@ -8,8 +8,8 @@
#include <linux/types.h>
#include <linux/interrupt.h>
#include "pci/pcibus_provider_defs.h"
#include "pci/pcidev.h"
#include <asm/sn/pcibus_provider_defs.h>
#include <asm/sn/pcidev.h>
#include "pci/tiocp.h"
#include "pci/pic.h"
#include "pci/pcibr_provider.h"

668
arch/ia64/sn/pci/tioca_provider.c Normal file
View file

@ -0,0 +1,668 @@
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2003-2005 Silicon Graphics, Inc. All Rights Reserved.
*/
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <asm/sn/sn_sal.h>
#include <asm/sn/addrs.h>
#include <asm/sn/pcidev.h>
#include <asm/sn/pcibus_provider_defs.h>
#include <asm/sn/tioca_provider.h>
uint32_t tioca_gart_found;
EXPORT_SYMBOL(tioca_gart_found); /* used by agp-sgi */
LIST_HEAD(tioca_list);
EXPORT_SYMBOL(tioca_list); /* used by agp-sgi */
static int tioca_gart_init(struct tioca_kernel *);
/**
* tioca_gart_init - Initialize SGI TIOCA GART
* @tioca_common: ptr to common prom/kernel struct identifying the
*
* If the indicated tioca has devices present, initialize its associated
* GART MMR's and kernel memory.
*/
static int
tioca_gart_init(struct tioca_kernel *tioca_kern)
{
uint64_t ap_reg;
uint64_t offset;
struct page *tmp;
struct tioca_common *tioca_common;
volatile struct tioca *ca_base;
tioca_common = tioca_kern->ca_common;
ca_base = (struct tioca *)tioca_common->ca_common.bs_base;
if (list_empty(tioca_kern->ca_devices))
return 0;
ap_reg = 0;
/*
* Validate aperature size
*/
switch (CA_APERATURE_SIZE >> 20) {
case 4:
ap_reg |= (0x3ff << CA_GART_AP_SIZE_SHFT); /* 4MB */
break;
case 8:
ap_reg |= (0x3fe << CA_GART_AP_SIZE_SHFT); /* 8MB */
break;
case 16:
ap_reg |= (0x3fc << CA_GART_AP_SIZE_SHFT); /* 16MB */
break;
case 32:
ap_reg |= (0x3f8 << CA_GART_AP_SIZE_SHFT); /* 32 MB */
break;
case 64:
ap_reg |= (0x3f0 << CA_GART_AP_SIZE_SHFT); /* 64 MB */
break;
case 128:
ap_reg |= (0x3e0 << CA_GART_AP_SIZE_SHFT); /* 128 MB */
break;
case 256:
ap_reg |= (0x3c0 << CA_GART_AP_SIZE_SHFT); /* 256 MB */
break;
case 512:
ap_reg |= (0x380 << CA_GART_AP_SIZE_SHFT); /* 512 MB */
break;
case 1024:
ap_reg |= (0x300 << CA_GART_AP_SIZE_SHFT); /* 1GB */
break;
case 2048:
ap_reg |= (0x200 << CA_GART_AP_SIZE_SHFT); /* 2GB */
break;
case 4096:
ap_reg |= (0x000 << CA_GART_AP_SIZE_SHFT); /* 4 GB */
break;
default:
printk(KERN_ERR "%s: Invalid CA_APERATURE_SIZE "
"0x%lx\n", __FUNCTION__, (ulong) CA_APERATURE_SIZE);
return -1;
}
/*
* Set up other aperature parameters
*/
if (PAGE_SIZE >= 16384) {
tioca_kern->ca_ap_pagesize = 16384;
ap_reg |= CA_GART_PAGE_SIZE;
} else {
tioca_kern->ca_ap_pagesize = 4096;
}
tioca_kern->ca_ap_size = CA_APERATURE_SIZE;
tioca_kern->ca_ap_bus_base = CA_APERATURE_BASE;
tioca_kern->ca_gart_entries =
tioca_kern->ca_ap_size / tioca_kern->ca_ap_pagesize;
ap_reg |= (CA_GART_AP_ENB_AGP | CA_GART_AP_ENB_PCI);
ap_reg |= tioca_kern->ca_ap_bus_base;
/*
* Allocate and set up the GART
*/
tioca_kern->ca_gart_size = tioca_kern->ca_gart_entries * sizeof(u64);
tmp =
alloc_pages_node(tioca_kern->ca_closest_node,
GFP_KERNEL | __GFP_ZERO,
get_order(tioca_kern->ca_gart_size));
if (!tmp) {
printk(KERN_ERR "%s: Could not allocate "
"%lu bytes (order %d) for GART\n",
__FUNCTION__,
tioca_kern->ca_gart_size,
get_order(tioca_kern->ca_gart_size));
return -ENOMEM;
}
tioca_kern->ca_gart = page_address(tmp);
tioca_kern->ca_gart_coretalk_addr =
PHYS_TO_TIODMA(virt_to_phys(tioca_kern->ca_gart));
/*
* Compute PCI/AGP convenience fields
*/
offset = CA_PCI32_MAPPED_BASE - CA_APERATURE_BASE;
tioca_kern->ca_pciap_base = CA_PCI32_MAPPED_BASE;
tioca_kern->ca_pciap_size = CA_PCI32_MAPPED_SIZE;
tioca_kern->ca_pcigart_start = offset / tioca_kern->ca_ap_pagesize;
tioca_kern->ca_pcigart_base =
tioca_kern->ca_gart_coretalk_addr + offset;
tioca_kern->ca_pcigart =
&tioca_kern->ca_gart[tioca_kern->ca_pcigart_start];
tioca_kern->ca_pcigart_entries =
tioca_kern->ca_pciap_size / tioca_kern->ca_ap_pagesize;
tioca_kern->ca_pcigart_pagemap =
kcalloc(1, tioca_kern->ca_pcigart_entries / 8, GFP_KERNEL);
if (!tioca_kern->ca_pcigart_pagemap) {
free_pages((unsigned long)tioca_kern->ca_gart,
get_order(tioca_kern->ca_gart_size));
return -1;
}
offset = CA_AGP_MAPPED_BASE - CA_APERATURE_BASE;
tioca_kern->ca_gfxap_base = CA_AGP_MAPPED_BASE;
tioca_kern->ca_gfxap_size = CA_AGP_MAPPED_SIZE;
tioca_kern->ca_gfxgart_start = offset / tioca_kern->ca_ap_pagesize;
tioca_kern->ca_gfxgart_base =
tioca_kern->ca_gart_coretalk_addr + offset;
tioca_kern->ca_gfxgart =
&tioca_kern->ca_gart[tioca_kern->ca_gfxgart_start];
tioca_kern->ca_gfxgart_entries =
tioca_kern->ca_gfxap_size / tioca_kern->ca_ap_pagesize;
/*
* various control settings:
* use agp op-combining
* use GET semantics to fetch memory
* participate in coherency domain
* DISABLE GART PREFETCHING due to hw bug tracked in SGI PV930029
*/
ca_base->ca_control1 |= CA_AGPDMA_OP_ENB_COMBDELAY; /* PV895469 ? */
ca_base->ca_control2 &= ~(CA_GART_MEM_PARAM);
ca_base->ca_control2 |= (0x2ull << CA_GART_MEM_PARAM_SHFT);
tioca_kern->ca_gart_iscoherent = 1;
ca_base->ca_control2 &=
~(CA_GART_WR_PREFETCH_ENB | CA_GART_RD_PREFETCH_ENB);
/*
* Unmask GART fetch error interrupts. Clear residual errors first.
*/
ca_base->ca_int_status_alias = CA_GART_FETCH_ERR;
ca_base->ca_mult_error_alias = CA_GART_FETCH_ERR;
ca_base->ca_int_mask &= ~CA_GART_FETCH_ERR;
/*
* Program the aperature and gart registers in TIOCA
*/
ca_base->ca_gart_aperature = ap_reg;
ca_base->ca_gart_ptr_table = tioca_kern->ca_gart_coretalk_addr | 1;
return 0;
}
/**
* tioca_fastwrite_enable - enable AGP FW for a tioca and its functions
* @tioca_kernel: structure representing the CA
*
* Given a CA, scan all attached functions making sure they all support
* FastWrite. If so, enable FastWrite for all functions and the CA itself.
*/
void
tioca_fastwrite_enable(struct tioca_kernel *tioca_kern)
{
int cap_ptr;
uint64_t ca_control1;
uint32_t reg;
struct tioca *tioca_base;
struct pci_dev *pdev;
struct tioca_common *common;
common = tioca_kern->ca_common;
/*
* Scan all vga controllers on this bus making sure they all
* suport FW. If not, return.
*/
list_for_each_entry(pdev, tioca_kern->ca_devices, bus_list) {
if (pdev->class != (PCI_CLASS_DISPLAY_VGA << 8))
continue;
cap_ptr = pci_find_capability(pdev, PCI_CAP_ID_AGP);
if (!cap_ptr)
return; /* no AGP CAP means no FW */
pci_read_config_dword(pdev, cap_ptr + PCI_AGP_STATUS, &reg);
if (!(reg & PCI_AGP_STATUS_FW))
return; /* function doesn't support FW */
}
/*
* Set fw for all vga fn's
*/
list_for_each_entry(pdev, tioca_kern->ca_devices, bus_list) {
if (pdev->class != (PCI_CLASS_DISPLAY_VGA << 8))
continue;
cap_ptr = pci_find_capability(pdev, PCI_CAP_ID_AGP);
pci_read_config_dword(pdev, cap_ptr + PCI_AGP_COMMAND, &reg);
reg |= PCI_AGP_COMMAND_FW;
pci_write_config_dword(pdev, cap_ptr + PCI_AGP_COMMAND, reg);
}
/*
* Set ca's fw to match
*/
tioca_base = (struct tioca *)common->ca_common.bs_base;
ca_control1 = tioca_base->ca_control1;
ca_control1 |= CA_AGP_FW_ENABLE;
tioca_base->ca_control1 = ca_control1;
}
EXPORT_SYMBOL(tioca_fastwrite_enable); /* used by agp-sgi */
/**
* tioca_dma_d64 - create a DMA mapping using 64-bit direct mode
* @paddr: system physical address
*
* Map @paddr into 64-bit CA bus space. No device context is necessary.
* Bits 53:0 come from the coretalk address. We just need to mask in the
* following optional bits of the 64-bit pci address:
*
* 63:60 - Coretalk Packet Type - 0x1 for Mem Get/Put (coherent)
* 0x2 for PIO (non-coherent)
* We will always use 0x1
* 55:55 - Swap bytes Currently unused
*/
static uint64_t
tioca_dma_d64(unsigned long paddr)
{
dma_addr_t bus_addr;
bus_addr = PHYS_TO_TIODMA(paddr);
BUG_ON(!bus_addr);
BUG_ON(bus_addr >> 54);
/* Set upper nibble to Cache Coherent Memory op */
bus_addr |= (1UL << 60);
return bus_addr;
}
/**
* tioca_dma_d48 - create a DMA mapping using 48-bit direct mode
* @pdev: linux pci_dev representing the function
* @paddr: system physical address
*
* Map @paddr into 64-bit bus space of the CA associated with @pcidev_info.
*
* The CA agp 48 bit direct address falls out as follows:
*
* When direct mapping AGP addresses, the 48 bit AGP address is
* constructed as follows:
*
* [47:40] - Low 8 bits of the page Node ID extracted from coretalk
* address [47:40]. The upper 8 node bits are fixed
* and come from the xxx register bits [5:0]
* [39:38] - Chiplet ID extracted from coretalk address [39:38]
* [37:00] - node offset extracted from coretalk address [37:00]
*
* Since the node id in general will be non-zero, and the chiplet id
* will always be non-zero, it follows that the device must support
* a dma mask of at least 0xffffffffff (40 bits) to target node 0
* and in general should be 0xffffffffffff (48 bits) to target nodes
* up to 255. Nodes above 255 need the support of the xxx register,
* and so a given CA can only directly target nodes in the range
* xxx - xxx+255.
*/
static uint64_t
tioca_dma_d48(struct pci_dev *pdev, uint64_t paddr)
{
struct tioca_common *tioca_common;
struct tioca *ca_base;
uint64_t ct_addr;
dma_addr_t bus_addr;
uint32_t node_upper;
uint64_t agp_dma_extn;
struct pcidev_info *pcidev_info = SN_PCIDEV_INFO(pdev);
tioca_common = (struct tioca_common *)pcidev_info->pdi_pcibus_info;
ca_base = (struct tioca *)tioca_common->ca_common.bs_base;
ct_addr = PHYS_TO_TIODMA(paddr);
if (!ct_addr)
return 0;
bus_addr = (dma_addr_t) (ct_addr & 0xffffffffffff);
node_upper = ct_addr >> 48;
if (node_upper > 64) {
printk(KERN_ERR "%s: coretalk addr 0x%p node id out "
"of range\n", __FUNCTION__, (void *)ct_addr);
return 0;
}
agp_dma_extn = ca_base->ca_agp_dma_addr_extn;
if (node_upper != (agp_dma_extn >> CA_AGP_DMA_NODE_ID_SHFT)) {
printk(KERN_ERR "%s: coretalk upper node (%u) "
"mismatch with ca_agp_dma_addr_extn (%lu)\n",
__FUNCTION__,
node_upper, (agp_dma_extn >> CA_AGP_DMA_NODE_ID_SHFT));
return 0;
}
return bus_addr;
}
/**
* tioca_dma_mapped - create a DMA mapping using a CA GART
* @pdev: linux pci_dev representing the function
* @paddr: host physical address to map
* @req_size: len (bytes) to map
*
* Map @paddr into CA address space using the GART mechanism. The mapped
* dma_addr_t is guarenteed to be contiguous in CA bus space.
*/
static dma_addr_t
tioca_dma_mapped(struct pci_dev *pdev, uint64_t paddr, size_t req_size)
{
int i, ps, ps_shift, entry, entries, mapsize, last_entry;
uint64_t xio_addr, end_xio_addr;
struct tioca_common *tioca_common;
struct tioca_kernel *tioca_kern;
dma_addr_t bus_addr = 0;
struct tioca_dmamap *ca_dmamap;
void *map;
unsigned long flags;
struct pcidev_info *pcidev_info = SN_PCIDEV_INFO(pdev);;
tioca_common = (struct tioca_common *)pcidev_info->pdi_pcibus_info;
tioca_kern = (struct tioca_kernel *)tioca_common->ca_kernel_private;
xio_addr = PHYS_TO_TIODMA(paddr);
if (!xio_addr)
return 0;
spin_lock_irqsave(&tioca_kern->ca_lock, flags);
/*
* allocate a map struct
*/
ca_dmamap = kcalloc(1, sizeof(struct tioca_dmamap), GFP_ATOMIC);
if (!ca_dmamap)
goto map_return;
/*
* Locate free entries that can hold req_size. Account for
* unaligned start/length when allocating.
*/
ps = tioca_kern->ca_ap_pagesize; /* will be power of 2 */
ps_shift = ffs(ps) - 1;
end_xio_addr = xio_addr + req_size - 1;
entries = (end_xio_addr >> ps_shift) - (xio_addr >> ps_shift) + 1;
map = tioca_kern->ca_pcigart_pagemap;
mapsize = tioca_kern->ca_pcigart_entries;
entry = find_first_zero_bit(map, mapsize);
while (entry < mapsize) {
last_entry = find_next_bit(map, mapsize, entry);
if (last_entry - entry >= entries)
break;
entry = find_next_zero_bit(map, mapsize, last_entry);
}
if (entry > mapsize)
goto map_return;
for (i = 0; i < entries; i++)
set_bit(entry + i, map);
bus_addr = tioca_kern->ca_pciap_base + (entry * ps);
ca_dmamap->cad_dma_addr = bus_addr;
ca_dmamap->cad_gart_size = entries;
ca_dmamap->cad_gart_entry = entry;
list_add(&ca_dmamap->cad_list, &tioca_kern->ca_list);
if (xio_addr % ps) {
tioca_kern->ca_pcigart[entry] = tioca_paddr_to_gart(xio_addr);
bus_addr += xio_addr & (ps - 1);
xio_addr &= ~(ps - 1);
xio_addr += ps;
entry++;
}
while (xio_addr < end_xio_addr) {
tioca_kern->ca_pcigart[entry] = tioca_paddr_to_gart(xio_addr);
xio_addr += ps;
entry++;
}
tioca_tlbflush(tioca_kern);
map_return:
spin_unlock_irqrestore(&tioca_kern->ca_lock, flags);
return bus_addr;
}
/**
* tioca_dma_unmap - release CA mapping resources
* @pdev: linux pci_dev representing the function
* @bus_addr: bus address returned by an earlier tioca_dma_map
* @dir: mapping direction (unused)
*
* Locate mapping resources associated with @bus_addr and release them.
* For mappings created using the direct modes (64 or 48) there are no
* resources to release.
*/
void
tioca_dma_unmap(struct pci_dev *pdev, dma_addr_t bus_addr, int dir)
{
int i, entry;
struct tioca_common *tioca_common;
struct tioca_kernel *tioca_kern;
struct tioca_dmamap *map;
struct pcidev_info *pcidev_info = SN_PCIDEV_INFO(pdev);
unsigned long flags;
tioca_common = (struct tioca_common *)pcidev_info->pdi_pcibus_info;
tioca_kern = (struct tioca_kernel *)tioca_common->ca_kernel_private;
/* return straight away if this isn't be a mapped address */
if (bus_addr < tioca_kern->ca_pciap_base ||
bus_addr >= (tioca_kern->ca_pciap_base + tioca_kern->ca_pciap_size))
return;
spin_lock_irqsave(&tioca_kern->ca_lock, flags);
list_for_each_entry(map, &tioca_kern->ca_dmamaps, cad_list)
if (map->cad_dma_addr == bus_addr)
break;
BUG_ON(map == NULL);
entry = map->cad_gart_entry;
for (i = 0; i < map->cad_gart_size; i++, entry++) {
clear_bit(entry, tioca_kern->ca_pcigart_pagemap);
tioca_kern->ca_pcigart[entry] = 0;
}
tioca_tlbflush(tioca_kern);
list_del(&map->cad_list);
spin_unlock_irqrestore(&tioca_kern->ca_lock, flags);
kfree(map);
}
/**
* tioca_dma_map - map pages for PCI DMA
* @pdev: linux pci_dev representing the function
* @paddr: host physical address to map
* @byte_count: bytes to map
*
* This is the main wrapper for mapping host physical pages to CA PCI space.
* The mapping mode used is based on the devices dma_mask. As a last resort
* use the GART mapped mode.
*/
uint64_t
tioca_dma_map(struct pci_dev *pdev, uint64_t paddr, size_t byte_count)
{
uint64_t mapaddr;
/*
* If card is 64 or 48 bit addresable, use a direct mapping. 32
* bit direct is so restrictive w.r.t. where the memory resides that
* we don't use it even though CA has some support.
*/
if (pdev->dma_mask == ~0UL)
mapaddr = tioca_dma_d64(paddr);
else if (pdev->dma_mask == 0xffffffffffffUL)
mapaddr = tioca_dma_d48(pdev, paddr);
else
mapaddr = 0;
/* Last resort ... use PCI portion of CA GART */
if (mapaddr == 0)
mapaddr = tioca_dma_mapped(pdev, paddr, byte_count);
return mapaddr;
}
/**
* tioca_error_intr_handler - SGI TIO CA error interrupt handler
* @irq: unused
* @arg: pointer to tioca_common struct for the given CA
* @pt: unused
*
* Handle a CA error interrupt. Simply a wrapper around a SAL call which
* defers processing to the SGI prom.
*/
static irqreturn_t
tioca_error_intr_handler(int irq, void *arg, struct pt_regs *pt)
{
struct tioca_common *soft = arg;
struct ia64_sal_retval ret_stuff;
uint64_t segment;
uint64_t busnum;
ret_stuff.status = 0;
ret_stuff.v0 = 0;
segment = 0;
busnum = soft->ca_common.bs_persist_busnum;
SAL_CALL_NOLOCK(ret_stuff,
(u64) SN_SAL_IOIF_ERROR_INTERRUPT,
segment, busnum, 0, 0, 0, 0, 0);
return IRQ_HANDLED;
}
/**
* tioca_bus_fixup - perform final PCI fixup for a TIO CA bus
* @prom_bussoft: Common prom/kernel struct representing the bus
*
* Replicates the tioca_common pointed to by @prom_bussoft in kernel
* space. Allocates and initializes a kernel-only area for a given CA,
* and sets up an irq for handling CA error interrupts.
*
* On successful setup, returns the kernel version of tioca_common back to
* the caller.
*/
void *
tioca_bus_fixup(struct pcibus_bussoft *prom_bussoft)
{
struct tioca_common *tioca_common;
struct tioca_kernel *tioca_kern;
struct pci_bus *bus;
/* sanity check prom rev */
if (sn_sal_rev_major() < 4 ||
(sn_sal_rev_major() == 4 && sn_sal_rev_minor() < 6)) {
printk
(KERN_ERR "%s: SGI prom rev 4.06 or greater required "
"for tioca support\n", __FUNCTION__);
return NULL;
}
/*
* Allocate kernel bus soft and copy from prom.
*/
tioca_common = kcalloc(1, sizeof(struct tioca_common), GFP_KERNEL);
if (!tioca_common)
return NULL;
memcpy(tioca_common, prom_bussoft, sizeof(struct tioca_common));
tioca_common->ca_common.bs_base |= __IA64_UNCACHED_OFFSET;
/* init kernel-private area */
tioca_kern = kcalloc(1, sizeof(struct tioca_kernel), GFP_KERNEL);
if (!tioca_kern) {
kfree(tioca_common);
return NULL;
}
tioca_kern->ca_common = tioca_common;
spin_lock_init(&tioca_kern->ca_lock);
INIT_LIST_HEAD(&tioca_kern->ca_dmamaps);
tioca_kern->ca_closest_node =
nasid_to_cnodeid(tioca_common->ca_closest_nasid);
tioca_common->ca_kernel_private = (uint64_t) tioca_kern;
bus = pci_find_bus(0, tioca_common->ca_common.bs_persist_busnum);
BUG_ON(!bus);
tioca_kern->ca_devices = &bus->devices;
/* init GART */
if (tioca_gart_init(tioca_kern) < 0) {
kfree(tioca_kern);
kfree(tioca_common);
return NULL;
}
tioca_gart_found++;
list_add(&tioca_kern->ca_list, &tioca_list);
if (request_irq(SGI_TIOCA_ERROR,
tioca_error_intr_handler,
SA_SHIRQ, "TIOCA error", (void *)tioca_common))
printk(KERN_WARNING
"%s: Unable to get irq %d. "
"Error interrupts won't be routed for TIOCA bus %d\n",
__FUNCTION__, SGI_TIOCA_ERROR,
(int)tioca_common->ca_common.bs_persist_busnum);
return tioca_common;
}
static struct sn_pcibus_provider tioca_pci_interfaces = {
.dma_map = tioca_dma_map,
.dma_map_consistent = tioca_dma_map,
.dma_unmap = tioca_dma_unmap,
.bus_fixup = tioca_bus_fixup,
};
/**
* tioca_init_provider - init SN PCI provider ops for TIO CA
*/
int
tioca_init_provider(void)
{
sn_pci_provider[PCIIO_ASIC_TYPE_TIOCA] = &tioca_pci_interfaces;
return 0;
}

14
drivers/char/Kconfig
View file

@ -399,6 +399,20 @@ config SGI_SNSC
controller communication from user space (you want this!),
say Y. Otherwise, say N.
config SGI_TIOCX
bool "SGI TIO CX driver support"
depends on (IA64_SGI_SN2 || IA64_GENERIC)
help
If you have an SGI Altix and you have fpga devices attached
to your TIO, say Y here, otherwise say N.
config SGI_MBCS
tristate "SGI FPGA Core Services driver support"
depends on (IA64_SGI_SN2 || IA64_GENERIC)
help
If you have an SGI Altix with an attached SABrick
say Y or M here, otherwise say N.
source "drivers/serial/Kconfig"
config UNIX98_PTYS

3
drivers/char/Makefile
View file

@ -42,11 +42,12 @@ obj-$(CONFIG_SX) += sx.o generic_serial.o
obj-$(CONFIG_RIO) += rio/ generic_serial.o
obj-$(CONFIG_HVC_CONSOLE) += hvc_console.o hvsi.o
obj-$(CONFIG_RAW_DRIVER) += raw.o
obj-$(CONFIG_SGI_SNSC) += snsc.o
obj-$(CONFIG_SGI_SNSC) += snsc.o snsc_event.o
obj-$(CONFIG_MMTIMER) += mmtimer.o
obj-$(CONFIG_VIOCONS) += viocons.o
obj-$(CONFIG_VIOTAPE) += viotape.o
obj-$(CONFIG_HVCS) += hvcs.o
obj-$(CONFIG_SGI_MBCS) += mbcs.o
obj-$(CONFIG_PRINTER) += lp.o
obj-$(CONFIG_TIPAR) += tipar.o

849
drivers/char/mbcs.c Normal file
View file

@ -0,0 +1,849 @@
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (c) 2005 Silicon Graphics, Inc. All rights reserved.
*/
/*
* MOATB Core Services driver.
*/
#include <linux/config.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#include <linux/ioport.h>
#include <linux/notifier.h>
#include <linux/reboot.h>
#include <linux/init.h>
#include <linux/fs.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/mm.h>
#include <linux/uio.h>
#include <asm/io.h>
#include <asm/uaccess.h>
#include <asm/system.h>
#include <asm/pgtable.h>
#include <asm/sn/addrs.h>
#include <asm/sn/intr.h>
#include <asm/sn/tiocx.h>
#include "mbcs.h"
#define MBCS_DEBUG 0
#if MBCS_DEBUG
#define DBG(fmt...) printk(KERN_ALERT fmt)
#else
#define DBG(fmt...)
#endif
int mbcs_major;
LIST_HEAD(soft_list);
/*
* file operations
*/
struct file_operations mbcs_ops = {
.open = mbcs_open,
.llseek = mbcs_sram_llseek,
.read = mbcs_sram_read,
.write = mbcs_sram_write,
.mmap = mbcs_gscr_mmap,
};
struct mbcs_callback_arg {
int minor;
struct cx_dev *cx_dev;
};
static inline void mbcs_getdma_init(struct getdma *gdma)
{
memset(gdma, 0, sizeof(struct getdma));
gdma->DoneIntEnable = 1;
}
static inline void mbcs_putdma_init(struct putdma *pdma)
{
memset(pdma, 0, sizeof(struct putdma));
pdma->DoneIntEnable = 1;
}
static inline void mbcs_algo_init(struct algoblock *algo_soft)
{
memset(algo_soft, 0, sizeof(struct algoblock));
}
static inline void mbcs_getdma_set(void *mmr,
uint64_t hostAddr,
uint64_t localAddr,
uint64_t localRamSel,
uint64_t numPkts,
uint64_t amoEnable,
uint64_t intrEnable,
uint64_t peerIO,
uint64_t amoHostDest,
uint64_t amoModType, uint64_t intrHostDest,
uint64_t intrVector)
{
union dma_control rdma_control;
union dma_amo_dest amo_dest;
union intr_dest intr_dest;
union dma_localaddr local_addr;
union dma_hostaddr host_addr;
rdma_control.dma_control_reg = 0;
amo_dest.dma_amo_dest_reg = 0;
intr_dest.intr_dest_reg = 0;
local_addr.dma_localaddr_reg = 0;
host_addr.dma_hostaddr_reg = 0;
host_addr.dma_sys_addr = hostAddr;
MBCS_MMR_SET(mmr, MBCS_RD_DMA_SYS_ADDR, host_addr.dma_hostaddr_reg);
local_addr.dma_ram_addr = localAddr;
local_addr.dma_ram_sel = localRamSel;
MBCS_MMR_SET(mmr, MBCS_RD_DMA_LOC_ADDR, local_addr.dma_localaddr_reg);
rdma_control.dma_op_length = numPkts;
rdma_control.done_amo_en = amoEnable;
rdma_control.done_int_en = intrEnable;
rdma_control.pio_mem_n = peerIO;
MBCS_MMR_SET(mmr, MBCS_RD_DMA_CTRL, rdma_control.dma_control_reg);
amo_dest.dma_amo_sys_addr = amoHostDest;
amo_dest.dma_amo_mod_type = amoModType;
MBCS_MMR_SET(mmr, MBCS_RD_DMA_AMO_DEST, amo_dest.dma_amo_dest_reg);
intr_dest.address = intrHostDest;
intr_dest.int_vector = intrVector;
MBCS_MMR_SET(mmr, MBCS_RD_DMA_INT_DEST, intr_dest.intr_dest_reg);
}
static inline void mbcs_putdma_set(void *mmr,
uint64_t hostAddr,
uint64_t localAddr,
uint64_t localRamSel,
uint64_t numPkts,
uint64_t amoEnable,
uint64_t intrEnable,
uint64_t peerIO,
uint64_t amoHostDest,
uint64_t amoModType,
uint64_t intrHostDest, uint64_t intrVector)
{
union dma_control wdma_control;
union dma_amo_dest amo_dest;
union intr_dest intr_dest;
union dma_localaddr local_addr;
union dma_hostaddr host_addr;
wdma_control.dma_control_reg = 0;
amo_dest.dma_amo_dest_reg = 0;
intr_dest.intr_dest_reg = 0;
local_addr.dma_localaddr_reg = 0;
host_addr.dma_hostaddr_reg = 0;
host_addr.dma_sys_addr = hostAddr;
MBCS_MMR_SET(mmr, MBCS_WR_DMA_SYS_ADDR, host_addr.dma_hostaddr_reg);
local_addr.dma_ram_addr = localAddr;
local_addr.dma_ram_sel = localRamSel;
MBCS_MMR_SET(mmr, MBCS_WR_DMA_LOC_ADDR, local_addr.dma_localaddr_reg);
wdma_control.dma_op_length = numPkts;
wdma_control.done_amo_en = amoEnable;
wdma_control.done_int_en = intrEnable;
wdma_control.pio_mem_n = peerIO;
MBCS_MMR_SET(mmr, MBCS_WR_DMA_CTRL, wdma_control.dma_control_reg);
amo_dest.dma_amo_sys_addr = amoHostDest;
amo_dest.dma_amo_mod_type = amoModType;
MBCS_MMR_SET(mmr, MBCS_WR_DMA_AMO_DEST, amo_dest.dma_amo_dest_reg);
intr_dest.address = intrHostDest;
intr_dest.int_vector = intrVector;
MBCS_MMR_SET(mmr, MBCS_WR_DMA_INT_DEST, intr_dest.intr_dest_reg);
}
static inline void mbcs_algo_set(void *mmr,
uint64_t amoHostDest,
uint64_t amoModType,
uint64_t intrHostDest,
uint64_t intrVector, uint64_t algoStepCount)
{
union dma_amo_dest amo_dest;
union intr_dest intr_dest;
union algo_step step;
step.algo_step_reg = 0;
intr_dest.intr_dest_reg = 0;
amo_dest.dma_amo_dest_reg = 0;
amo_dest.dma_amo_sys_addr = amoHostDest;
amo_dest.dma_amo_mod_type = amoModType;
MBCS_MMR_SET(mmr, MBCS_ALG_AMO_DEST, amo_dest.dma_amo_dest_reg);
intr_dest.address = intrHostDest;
intr_dest.int_vector = intrVector;
MBCS_MMR_SET(mmr, MBCS_ALG_INT_DEST, intr_dest.intr_dest_reg);
step.alg_step_cnt = algoStepCount;
MBCS_MMR_SET(mmr, MBCS_ALG_STEP, step.algo_step_reg);
}
static inline int mbcs_getdma_start(struct mbcs_soft *soft)
{
void *mmr_base;
struct getdma *gdma;
uint64_t numPkts;
union cm_control cm_control;
mmr_base = soft->mmr_base;
gdma = &soft->getdma;
/* check that host address got setup */
if (!gdma->hostAddr)
return -1;
numPkts =
(gdma->bytes + (MBCS_CACHELINE_SIZE - 1)) / MBCS_CACHELINE_SIZE;
/* program engine */
mbcs_getdma_set(mmr_base, tiocx_dma_addr(gdma->hostAddr),
gdma->localAddr,
(gdma->localAddr < MB2) ? 0 :
(gdma->localAddr < MB4) ? 1 :
(gdma->localAddr < MB6) ? 2 : 3,
numPkts,
gdma->DoneAmoEnable,
gdma->DoneIntEnable,
gdma->peerIO,
gdma->amoHostDest,
gdma->amoModType,
gdma->intrHostDest, gdma->intrVector);
/* start engine */
cm_control.cm_control_reg = MBCS_MMR_GET(mmr_base, MBCS_CM_CONTROL);
cm_control.rd_dma_go = 1;
MBCS_MMR_SET(mmr_base, MBCS_CM_CONTROL, cm_control.cm_control_reg);
return 0;
}
static inline int mbcs_putdma_start(struct mbcs_soft *soft)
{
void *mmr_base;
struct putdma *pdma;
uint64_t numPkts;
union cm_control cm_control;
mmr_base = soft->mmr_base;
pdma = &soft->putdma;
/* check that host address got setup */
if (!pdma->hostAddr)
return -1;
numPkts =
(pdma->bytes + (MBCS_CACHELINE_SIZE - 1)) / MBCS_CACHELINE_SIZE;
/* program engine */
mbcs_putdma_set(mmr_base, tiocx_dma_addr(pdma->hostAddr),
pdma->localAddr,
(pdma->localAddr < MB2) ? 0 :
(pdma->localAddr < MB4) ? 1 :
(pdma->localAddr < MB6) ? 2 : 3,
numPkts,
pdma->DoneAmoEnable,
pdma->DoneIntEnable,
pdma->peerIO,
pdma->amoHostDest,
pdma->amoModType,
pdma->intrHostDest, pdma->intrVector);
/* start engine */
cm_control.cm_control_reg = MBCS_MMR_GET(mmr_base, MBCS_CM_CONTROL);
cm_control.wr_dma_go = 1;
MBCS_MMR_SET(mmr_base, MBCS_CM_CONTROL, cm_control.cm_control_reg);
return 0;
}
static inline int mbcs_algo_start(struct mbcs_soft *soft)
{
struct algoblock *algo_soft = &soft->algo;
void *mmr_base = soft->mmr_base;
union cm_control cm_control;
if (down_interruptible(&soft->algolock))
return -ERESTARTSYS;
atomic_set(&soft->algo_done, 0);
mbcs_algo_set(mmr_base,
algo_soft->amoHostDest,
algo_soft->amoModType,
algo_soft->intrHostDest,
algo_soft->intrVector, algo_soft->algoStepCount);
/* start algorithm */
cm_control.cm_control_reg = MBCS_MMR_GET(mmr_base, MBCS_CM_CONTROL);
cm_control.alg_done_int_en = 1;
cm_control.alg_go = 1;
MBCS_MMR_SET(mmr_base, MBCS_CM_CONTROL, cm_control.cm_control_reg);
up(&soft->algolock);
return 0;
}
static inline ssize_t
do_mbcs_sram_dmawrite(struct mbcs_soft *soft, uint64_t hostAddr,
size_t len, loff_t * off)
{
int rv = 0;
if (down_interruptible(&soft->dmawritelock))
return -ERESTARTSYS;
atomic_set(&soft->dmawrite_done, 0);
soft->putdma.hostAddr = hostAddr;
soft->putdma.localAddr = *off;
soft->putdma.bytes = len;
if (mbcs_putdma_start(soft) < 0) {
DBG(KERN_ALERT "do_mbcs_sram_dmawrite: "
"mbcs_putdma_start failed\n");
rv = -EAGAIN;
goto dmawrite_exit;
}
if (wait_event_interruptible(soft->dmawrite_queue,
atomic_read(&soft->dmawrite_done))) {
rv = -ERESTARTSYS;
goto dmawrite_exit;
}
rv = len;
*off += len;
dmawrite_exit:
up(&soft->dmawritelock);
return rv;
}
static inline ssize_t
do_mbcs_sram_dmaread(struct mbcs_soft *soft, uint64_t hostAddr,
size_t len, loff_t * off)
{
int rv = 0;
if (down_interruptible(&soft->dmareadlock))
return -ERESTARTSYS;
atomic_set(&soft->dmawrite_done, 0);
soft->getdma.hostAddr = hostAddr;
soft->getdma.localAddr = *off;
soft->getdma.bytes = len;
if (mbcs_getdma_start(soft) < 0) {
DBG(KERN_ALERT "mbcs_strategy: mbcs_getdma_start failed\n");
rv = -EAGAIN;
goto dmaread_exit;
}
if (wait_event_interruptible(soft->dmaread_queue,
atomic_read(&soft->dmaread_done))) {
rv = -ERESTARTSYS;
goto dmaread_exit;
}
rv = len;
*off += len;
dmaread_exit:
up(&soft->dmareadlock);
return rv;
}
int mbcs_open(struct inode *ip, struct file *fp)
{
struct mbcs_soft *soft;
int minor;
minor = iminor(ip);
list_for_each_entry(soft, &soft_list, list) {
if (soft->nasid == minor) {
fp->private_data = soft->cxdev;
return 0;
}
}
return -ENODEV;
}
ssize_t mbcs_sram_read(struct file * fp, char *buf, size_t len, loff_t * off)
{
struct cx_dev *cx_dev = fp->private_data;
struct mbcs_soft *soft = cx_dev->soft;
uint64_t hostAddr;
int rv = 0;
hostAddr = __get_dma_pages(GFP_KERNEL, get_order(len));
if (hostAddr == 0)
return -ENOMEM;
rv = do_mbcs_sram_dmawrite(soft, hostAddr, len, off);
if (rv < 0)
goto exit;
if (copy_to_user(buf, (void *)hostAddr, len))
rv = -EFAULT;
exit:
free_pages(hostAddr, get_order(len));
return rv;
}
ssize_t
mbcs_sram_write(struct file * fp, const char *buf, size_t len, loff_t * off)
{
struct cx_dev *cx_dev = fp->private_data;
struct mbcs_soft *soft = cx_dev->soft;
uint64_t hostAddr;
int rv = 0;
hostAddr = __get_dma_pages(GFP_KERNEL, get_order(len));
if (hostAddr == 0)
return -ENOMEM;
if (copy_from_user((void *)hostAddr, buf, len)) {
rv = -EFAULT;
goto exit;
}
rv = do_mbcs_sram_dmaread(soft, hostAddr, len, off);
exit:
free_pages(hostAddr, get_order(len));
return rv;
}
loff_t mbcs_sram_llseek(struct file * filp, loff_t off, int whence)
{
loff_t newpos;
switch (whence) {
case 0: /* SEEK_SET */
newpos = off;
break;
case 1: /* SEEK_CUR */
newpos = filp->f_pos + off;
break;
case 2: /* SEEK_END */
newpos = MBCS_SRAM_SIZE + off;
break;
default: /* can't happen */
return -EINVAL;
}
if (newpos < 0)
return -EINVAL;
filp->f_pos = newpos;
return newpos;
}
static uint64_t mbcs_pioaddr(struct mbcs_soft *soft, uint64_t offset)
{
uint64_t mmr_base;
mmr_base = (uint64_t) (soft->mmr_base + offset);
return mmr_base;
}
static void mbcs_debug_pioaddr_set(struct mbcs_soft *soft)
{
soft->debug_addr = mbcs_pioaddr(soft, MBCS_DEBUG_START);
}
static void mbcs_gscr_pioaddr_set(struct mbcs_soft *soft)
{
soft->gscr_addr = mbcs_pioaddr(soft, MBCS_GSCR_START);
}
int mbcs_gscr_mmap(struct file *fp, struct vm_area_struct *vma)
{
struct cx_dev *cx_dev = fp->private_data;
struct mbcs_soft *soft = cx_dev->soft;
if (vma->vm_pgoff != 0)
return -EINVAL;
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
/* Remap-pfn-range will mark the range VM_IO and VM_RESERVED */
if (remap_pfn_range(vma,
vma->vm_start,
__pa(soft->gscr_addr) >> PAGE_SHIFT,
PAGE_SIZE,
vma->vm_page_prot))
return -EAGAIN;
return 0;
}
/**
* mbcs_completion_intr_handler - Primary completion handler.
* @irq: irq
* @arg: soft struct for device
* @ep: regs
*
*/
static irqreturn_t
mbcs_completion_intr_handler(int irq, void *arg, struct pt_regs *ep)
{
struct mbcs_soft *soft = (struct mbcs_soft *)arg;
void *mmr_base;
union cm_status cm_status;
union cm_control cm_control;
mmr_base = soft->mmr_base;
cm_status.cm_status_reg = MBCS_MMR_GET(mmr_base, MBCS_CM_STATUS);
if (cm_status.rd_dma_done) {
/* stop dma-read engine, clear status */
cm_control.cm_control_reg =
MBCS_MMR_GET(mmr_base, MBCS_CM_CONTROL);
cm_control.rd_dma_clr = 1;
MBCS_MMR_SET(mmr_base, MBCS_CM_CONTROL,
cm_control.cm_control_reg);
atomic_set(&soft->dmaread_done, 1);
wake_up(&soft->dmaread_queue);
}
if (cm_status.wr_dma_done) {
/* stop dma-write engine, clear status */
cm_control.cm_control_reg =
MBCS_MMR_GET(mmr_base, MBCS_CM_CONTROL);
cm_control.wr_dma_clr = 1;
MBCS_MMR_SET(mmr_base, MBCS_CM_CONTROL,
cm_control.cm_control_reg);
atomic_set(&soft->dmawrite_done, 1);
wake_up(&soft->dmawrite_queue);
}
if (cm_status.alg_done) {
/* clear status */
cm_control.cm_control_reg =
MBCS_MMR_GET(mmr_base, MBCS_CM_CONTROL);
cm_control.alg_done_clr = 1;
MBCS_MMR_SET(mmr_base, MBCS_CM_CONTROL,
cm_control.cm_control_reg);
atomic_set(&soft->algo_done, 1);
wake_up(&soft->algo_queue);
}
return IRQ_HANDLED;
}
/**
* mbcs_intr_alloc - Allocate interrupts.
* @dev: device pointer
*
*/
static int mbcs_intr_alloc(struct cx_dev *dev)
{
struct sn_irq_info *sn_irq;
struct mbcs_soft *soft;
struct getdma *getdma;
struct putdma *putdma;
struct algoblock *algo;
soft = dev->soft;
getdma = &soft->getdma;
putdma = &soft->putdma;
algo = &soft->algo;
soft->get_sn_irq = NULL;
soft->put_sn_irq = NULL;
soft->algo_sn_irq = NULL;
sn_irq = tiocx_irq_alloc(dev->cx_id.nasid, TIOCX_CORELET, -1, -1, -1);
if (sn_irq == NULL)
return -EAGAIN;
soft->get_sn_irq = sn_irq;
getdma->intrHostDest = sn_irq->irq_xtalkaddr;
getdma->intrVector = sn_irq->irq_irq;
if (request_irq(sn_irq->irq_irq,
(void *)mbcs_completion_intr_handler, SA_SHIRQ,
"MBCS get intr", (void *)soft)) {
tiocx_irq_free(soft->get_sn_irq);
return -EAGAIN;
}
sn_irq = tiocx_irq_alloc(dev->cx_id.nasid, TIOCX_CORELET, -1, -1, -1);
if (sn_irq == NULL) {
free_irq(soft->get_sn_irq->irq_irq, soft);
tiocx_irq_free(soft->get_sn_irq);
return -EAGAIN;
}
soft->put_sn_irq = sn_irq;
putdma->intrHostDest = sn_irq->irq_xtalkaddr;
putdma->intrVector = sn_irq->irq_irq;
if (request_irq(sn_irq->irq_irq,
(void *)mbcs_completion_intr_handler, SA_SHIRQ,
"MBCS put intr", (void *)soft)) {
tiocx_irq_free(soft->put_sn_irq);
free_irq(soft->get_sn_irq->irq_irq, soft);
tiocx_irq_free(soft->get_sn_irq);
return -EAGAIN;
}
sn_irq = tiocx_irq_alloc(dev->cx_id.nasid, TIOCX_CORELET, -1, -1, -1);
if (sn_irq == NULL) {
free_irq(soft->put_sn_irq->irq_irq, soft);
tiocx_irq_free(soft->put_sn_irq);
free_irq(soft->get_sn_irq->irq_irq, soft);
tiocx_irq_free(soft->get_sn_irq);
return -EAGAIN;
}
soft->algo_sn_irq = sn_irq;
algo->intrHostDest = sn_irq->irq_xtalkaddr;
algo->intrVector = sn_irq->irq_irq;
if (request_irq(sn_irq->irq_irq,
(void *)mbcs_completion_intr_handler, SA_SHIRQ,
"MBCS algo intr", (void *)soft)) {
tiocx_irq_free(soft->algo_sn_irq);
free_irq(soft->put_sn_irq->irq_irq, soft);
tiocx_irq_free(soft->put_sn_irq);
free_irq(soft->get_sn_irq->irq_irq, soft);
tiocx_irq_free(soft->get_sn_irq);
return -EAGAIN;
}
return 0;
}
/**
* mbcs_intr_dealloc - Remove interrupts.
* @dev: device pointer
*
*/
static void mbcs_intr_dealloc(struct cx_dev *dev)
{
struct mbcs_soft *soft;
soft = dev->soft;
free_irq(soft->get_sn_irq->irq_irq, soft);
tiocx_irq_free(soft->get_sn_irq);
free_irq(soft->put_sn_irq->irq_irq, soft);
tiocx_irq_free(soft->put_sn_irq);
free_irq(soft->algo_sn_irq->irq_irq, soft);
tiocx_irq_free(soft->algo_sn_irq);
}
static inline int mbcs_hw_init(struct mbcs_soft *soft)
{
void *mmr_base = soft->mmr_base;
union cm_control cm_control;
union cm_req_timeout cm_req_timeout;
uint64_t err_stat;
cm_req_timeout.cm_req_timeout_reg =
MBCS_MMR_GET(mmr_base, MBCS_CM_REQ_TOUT);
cm_req_timeout.time_out = MBCS_CM_CONTROL_REQ_TOUT_MASK;
MBCS_MMR_SET(mmr_base, MBCS_CM_REQ_TOUT,
cm_req_timeout.cm_req_timeout_reg);
mbcs_gscr_pioaddr_set(soft);
mbcs_debug_pioaddr_set(soft);
/* clear errors */
err_stat = MBCS_MMR_GET(mmr_base, MBCS_CM_ERR_STAT);
MBCS_MMR_SET(mmr_base, MBCS_CM_CLR_ERR_STAT, err_stat);
MBCS_MMR_ZERO(mmr_base, MBCS_CM_ERROR_DETAIL1);
/* enable interrupts */
/* turn off 2^23 (INT_EN_PIO_REQ_ADDR_INV) */
MBCS_MMR_SET(mmr_base, MBCS_CM_ERR_INT_EN, 0x3ffffff7e00ffUL);
/* arm status regs and clear engines */
cm_control.cm_control_reg = MBCS_MMR_GET(mmr_base, MBCS_CM_CONTROL);
cm_control.rearm_stat_regs = 1;
cm_control.alg_clr = 1;
cm_control.wr_dma_clr = 1;
cm_control.rd_dma_clr = 1;
MBCS_MMR_SET(mmr_base, MBCS_CM_CONTROL, cm_control.cm_control_reg);
return 0;
}
static ssize_t show_algo(struct device *dev, char *buf)
{
struct cx_dev *cx_dev = to_cx_dev(dev);
struct mbcs_soft *soft = cx_dev->soft;
uint64_t debug0;
/*
* By convention, the first debug register contains the
* algorithm number and revision.
*/
debug0 = *(uint64_t *) soft->debug_addr;
return sprintf(buf, "0x%lx 0x%lx\n",
(debug0 >> 32), (debug0 & 0xffffffff));
}
static ssize_t store_algo(struct device *dev, const char *buf, size_t count)
{
int n;
struct cx_dev *cx_dev = to_cx_dev(dev);
struct mbcs_soft *soft = cx_dev->soft;
if (count <= 0)
return 0;
n = simple_strtoul(buf, NULL, 0);
if (n == 1) {
mbcs_algo_start(soft);
if (wait_event_interruptible(soft->algo_queue,
atomic_read(&soft->algo_done)))
return -ERESTARTSYS;
}
return count;
}
DEVICE_ATTR(algo, 0644, show_algo, store_algo);
/**
* mbcs_probe - Initialize for device
* @dev: device pointer
* @device_id: id table pointer
*
*/
static int mbcs_probe(struct cx_dev *dev, const struct cx_device_id *id)
{
struct mbcs_soft *soft;
dev->soft = NULL;
soft = kcalloc(1, sizeof(struct mbcs_soft), GFP_KERNEL);
if (soft == NULL)
return -ENOMEM;
soft->nasid = dev->cx_id.nasid;
list_add(&soft->list, &soft_list);
soft->mmr_base = (void *)tiocx_swin_base(dev->cx_id.nasid);
dev->soft = soft;
soft->cxdev = dev;
init_waitqueue_head(&soft->dmawrite_queue);
init_waitqueue_head(&soft->dmaread_queue);
init_waitqueue_head(&soft->algo_queue);
init_MUTEX(&soft->dmawritelock);
init_MUTEX(&soft->dmareadlock);
init_MUTEX(&soft->algolock);
mbcs_getdma_init(&soft->getdma);
mbcs_putdma_init(&soft->putdma);
mbcs_algo_init(&soft->algo);
mbcs_hw_init(soft);
/* Allocate interrupts */
mbcs_intr_alloc(dev);
device_create_file(&dev->dev, &dev_attr_algo);
return 0;
}
static int mbcs_remove(struct cx_dev *dev)
{
if (dev->soft) {
mbcs_intr_dealloc(dev);
kfree(dev->soft);
}
device_remove_file(&dev->dev, &dev_attr_algo);
return 0;
}
const struct cx_device_id __devinitdata mbcs_id_table[] = {
{
.part_num = MBCS_PART_NUM,
.mfg_num = MBCS_MFG_NUM,
},
{
.part_num = MBCS_PART_NUM_ALG0,
.mfg_num = MBCS_MFG_NUM,
},
{0, 0}
};
MODULE_DEVICE_TABLE(cx, mbcs_id_table);
struct cx_drv mbcs_driver = {
.name = DEVICE_NAME,
.id_table = mbcs_id_table,
.probe = mbcs_probe,
.remove = mbcs_remove,
};
static void __exit mbcs_exit(void)
{
int rv;
rv = unregister_chrdev(mbcs_major, DEVICE_NAME);
if (rv < 0)
DBG(KERN_ALERT "Error in unregister_chrdev: %d\n", rv);
cx_driver_unregister(&mbcs_driver);
}
static int __init mbcs_init(void)
{
int rv;
// Put driver into chrdevs[]. Get major number.
rv = register_chrdev(mbcs_major, DEVICE_NAME, &mbcs_ops);
if (rv < 0) {
DBG(KERN_ALERT "mbcs_init: can't get major number. %d\n", rv);
return rv;
}
mbcs_major = rv;
return cx_driver_register(&mbcs_driver);
}
module_init(mbcs_init);
module_exit(mbcs_exit);
MODULE_AUTHOR("Bruce Losure <blosure@sgi.com>");
MODULE_DESCRIPTION("Driver for MOATB Core Services");
MODULE_LICENSE("GPL");

553
drivers/char/mbcs.h Normal file
View file

@ -0,0 +1,553 @@
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (c) 2005 Silicon Graphics, Inc. All rights reserved.
*/
#ifndef __MBCS_H__
#define __MBCS_H__
/*
* General macros
*/
#define MB (1024*1024)
#define MB2 (2*MB)
#define MB4 (4*MB)
#define MB6 (6*MB)
/*
* Offsets and masks
*/
#define MBCS_CM_ID 0x0000 /* Identification */
#define MBCS_CM_STATUS 0x0008 /* Status */
#define MBCS_CM_ERROR_DETAIL1 0x0010 /* Error Detail1 */
#define MBCS_CM_ERROR_DETAIL2 0x0018 /* Error Detail2 */
#define MBCS_CM_CONTROL 0x0020 /* Control */
#define MBCS_CM_REQ_TOUT 0x0028 /* Request Time-out */
#define MBCS_CM_ERR_INT_DEST 0x0038 /* Error Interrupt Destination */
#define MBCS_CM_TARG_FL 0x0050 /* Target Flush */
#define MBCS_CM_ERR_STAT 0x0060 /* Error Status */
#define MBCS_CM_CLR_ERR_STAT 0x0068 /* Clear Error Status */
#define MBCS_CM_ERR_INT_EN 0x0070 /* Error Interrupt Enable */
#define MBCS_RD_DMA_SYS_ADDR 0x0100 /* Read DMA System Address */
#define MBCS_RD_DMA_LOC_ADDR 0x0108 /* Read DMA Local Address */
#define MBCS_RD_DMA_CTRL 0x0110 /* Read DMA Control */
#define MBCS_RD_DMA_AMO_DEST 0x0118 /* Read DMA AMO Destination */
#define MBCS_RD_DMA_INT_DEST 0x0120 /* Read DMA Interrupt Destination */
#define MBCS_RD_DMA_AUX_STAT 0x0130 /* Read DMA Auxillary Status */
#define MBCS_WR_DMA_SYS_ADDR 0x0200 /* Write DMA System Address */
#define MBCS_WR_DMA_LOC_ADDR 0x0208 /* Write DMA Local Address */
#define MBCS_WR_DMA_CTRL 0x0210 /* Write DMA Control */
#define MBCS_WR_DMA_AMO_DEST 0x0218 /* Write DMA AMO Destination */
#define MBCS_WR_DMA_INT_DEST 0x0220 /* Write DMA Interrupt Destination */
#define MBCS_WR_DMA_AUX_STAT 0x0230 /* Write DMA Auxillary Status */
#define MBCS_ALG_AMO_DEST 0x0300 /* Algorithm AMO Destination */
#define MBCS_ALG_INT_DEST 0x0308 /* Algorithm Interrupt Destination */
#define MBCS_ALG_OFFSETS 0x0310
#define MBCS_ALG_STEP 0x0318 /* Algorithm Step */
#define MBCS_GSCR_START 0x0000000
#define MBCS_DEBUG_START 0x0100000
#define MBCS_RAM0_START 0x0200000
#define MBCS_RAM1_START 0x0400000
#define MBCS_RAM2_START 0x0600000
#define MBCS_CM_CONTROL_REQ_TOUT_MASK 0x0000000000ffffffUL
//#define PIO_BASE_ADDR_BASE_OFFSET_MASK 0x00fffffffff00000UL
#define MBCS_SRAM_SIZE (1024*1024)
#define MBCS_CACHELINE_SIZE 128
/*
* MMR get's and put's
*/
#define MBCS_MMR_ADDR(mmr_base, offset)((uint64_t *)(mmr_base + offset))
#define MBCS_MMR_SET(mmr_base, offset, value) { \
uint64_t *mbcs_mmr_set_u64p, readback; \
mbcs_mmr_set_u64p = (uint64_t *)(mmr_base + offset); \
*mbcs_mmr_set_u64p = value; \
readback = *mbcs_mmr_set_u64p; \
}
#define MBCS_MMR_GET(mmr_base, offset) *(uint64_t *)(mmr_base + offset)
#define MBCS_MMR_ZERO(mmr_base, offset) MBCS_MMR_SET(mmr_base, offset, 0)
/*
* MBCS mmr structures
*/
union cm_id {
uint64_t cm_id_reg;
struct {
uint64_t always_one:1, // 0
mfg_id:11, // 11:1
part_num:16, // 27:12
bitstream_rev:8, // 35:28
:28; // 63:36
};
};
union cm_status {
uint64_t cm_status_reg;
struct {
uint64_t pending_reads:8, // 7:0
pending_writes:8, // 15:8
ice_rsp_credits:8, // 23:16
ice_req_credits:8, // 31:24
cm_req_credits:8, // 39:32
:1, // 40
rd_dma_in_progress:1, // 41
rd_dma_done:1, // 42
:1, // 43
wr_dma_in_progress:1, // 44
wr_dma_done:1, // 45
alg_waiting:1, // 46
alg_pipe_running:1, // 47
alg_done:1, // 48
:3, // 51:49
pending_int_reqs:8, // 59:52
:3, // 62:60
alg_half_speed_sel:1; // 63
};
};
union cm_error_detail1 {
uint64_t cm_error_detail1_reg;
struct {
uint64_t packet_type:4, // 3:0
source_id:2, // 5:4
data_size:2, // 7:6
tnum:8, // 15:8
byte_enable:8, // 23:16
gfx_cred:8, // 31:24
read_type:2, // 33:32
pio_or_memory:1, // 34
head_cw_error:1, // 35
:12, // 47:36
head_error_bit:1, // 48
data_error_bit:1, // 49
:13, // 62:50
valid:1; // 63
};
};
union cm_error_detail2 {
uint64_t cm_error_detail2_reg;
struct {
uint64_t address:56, // 55:0
:8; // 63:56
};
};
union cm_control {
uint64_t cm_control_reg;
struct {
uint64_t cm_id:2, // 1:0
:2, // 3:2
max_trans:5, // 8:4
:3, // 11:9
address_mode:1, // 12
:7, // 19:13
credit_limit:8, // 27:20
:5, // 32:28
rearm_stat_regs:1, // 33
prescalar_byp:1, // 34
force_gap_war:1, // 35
rd_dma_go:1, // 36
wr_dma_go:1, // 37
alg_go:1, // 38
rd_dma_clr:1, // 39
wr_dma_clr:1, // 40
alg_clr:1, // 41
:2, // 43:42
alg_wait_step:1, // 44
alg_done_amo_en:1, // 45
alg_done_int_en:1, // 46
:1, // 47
alg_sram0_locked:1, // 48
alg_sram1_locked:1, // 49
alg_sram2_locked:1, // 50
alg_done_clr:1, // 51
:12; // 63:52
};
};
union cm_req_timeout {
uint64_t cm_req_timeout_reg;
struct {
uint64_t time_out:24, // 23:0
:40; // 63:24
};
};
union intr_dest {
uint64_t intr_dest_reg;
struct {
uint64_t address:56, // 55:0
int_vector:8; // 63:56
};
};
union cm_error_status {
uint64_t cm_error_status_reg;
struct {
uint64_t ecc_sbe:1, // 0
ecc_mbe:1, // 1
unsupported_req:1, // 2
unexpected_rsp:1, // 3
bad_length:1, // 4
bad_datavalid:1, // 5
buffer_overflow:1, // 6
request_timeout:1, // 7
:8, // 15:8
head_inv_data_size:1, // 16
rsp_pactype_inv:1, // 17
head_sb_err:1, // 18
missing_head:1, // 19
head_inv_rd_type:1, // 20
head_cmd_err_bit:1, // 21
req_addr_align_inv:1, // 22
pio_req_addr_inv:1, // 23
req_range_dsize_inv:1, // 24
early_term:1, // 25
early_tail:1, // 26
missing_tail:1, // 27
data_flit_sb_err:1, // 28
cm2hcm_req_cred_of:1, // 29
cm2hcm_rsp_cred_of:1, // 30
rx_bad_didn:1, // 31
rd_dma_err_rsp:1, // 32
rd_dma_tnum_tout:1, // 33
rd_dma_multi_tnum_tou:1, // 34
wr_dma_err_rsp:1, // 35
wr_dma_tnum_tout:1, // 36
wr_dma_multi_tnum_tou:1, // 37
alg_data_overflow:1, // 38
alg_data_underflow:1, // 39
ram0_access_conflict:1, // 40
ram1_access_conflict:1, // 41
ram2_access_conflict:1, // 42
ram0_perr:1, // 43
ram1_perr:1, // 44
ram2_perr:1, // 45
int_gen_rsp_err:1, // 46
int_gen_tnum_tout:1, // 47
rd_dma_prog_err:1, // 48
wr_dma_prog_err:1, // 49
:14; // 63:50
};
};
union cm_clr_error_status {
uint64_t cm_clr_error_status_reg;
struct {
uint64_t clr_ecc_sbe:1, // 0
clr_ecc_mbe:1, // 1
clr_unsupported_req:1, // 2
clr_unexpected_rsp:1, // 3
clr_bad_length:1, // 4
clr_bad_datavalid:1, // 5
clr_buffer_overflow:1, // 6
clr_request_timeout:1, // 7
:8, // 15:8
clr_head_inv_data_siz:1, // 16
clr_rsp_pactype_inv:1, // 17
clr_head_sb_err:1, // 18
clr_missing_head:1, // 19
clr_head_inv_rd_type:1, // 20
clr_head_cmd_err_bit:1, // 21
clr_req_addr_align_in:1, // 22
clr_pio_req_addr_inv:1, // 23
clr_req_range_dsize_i:1, // 24
clr_early_term:1, // 25
clr_early_tail:1, // 26
clr_missing_tail:1, // 27
clr_data_flit_sb_err:1, // 28
clr_cm2hcm_req_cred_o:1, // 29
clr_cm2hcm_rsp_cred_o:1, // 30
clr_rx_bad_didn:1, // 31
clr_rd_dma_err_rsp:1, // 32
clr_rd_dma_tnum_tout:1, // 33
clr_rd_dma_multi_tnum:1, // 34
clr_wr_dma_err_rsp:1, // 35
clr_wr_dma_tnum_tout:1, // 36
clr_wr_dma_multi_tnum:1, // 37
clr_alg_data_overflow:1, // 38
clr_alg_data_underflo:1, // 39
clr_ram0_access_confl:1, // 40
clr_ram1_access_confl:1, // 41
clr_ram2_access_confl:1, // 42
clr_ram0_perr:1, // 43
clr_ram1_perr:1, // 44
clr_ram2_perr:1, // 45
clr_int_gen_rsp_err:1, // 46
clr_int_gen_tnum_tout:1, // 47
clr_rd_dma_prog_err:1, // 48
clr_wr_dma_prog_err:1, // 49
:14; // 63:50
};
};
union cm_error_intr_enable {
uint64_t cm_error_intr_enable_reg;
struct {
uint64_t int_en_ecc_sbe:1, // 0
int_en_ecc_mbe:1, // 1
int_en_unsupported_re:1, // 2
int_en_unexpected_rsp:1, // 3
int_en_bad_length:1, // 4
int_en_bad_datavalid:1, // 5
int_en_buffer_overflo:1, // 6
int_en_request_timeou:1, // 7
:8, // 15:8
int_en_head_inv_data_:1, // 16
int_en_rsp_pactype_in:1, // 17
int_en_head_sb_err:1, // 18
int_en_missing_head:1, // 19
int_en_head_inv_rd_ty:1, // 20
int_en_head_cmd_err_b:1, // 21
int_en_req_addr_align:1, // 22
int_en_pio_req_addr_i:1, // 23
int_en_req_range_dsiz:1, // 24
int_en_early_term:1, // 25
int_en_early_tail:1, // 26
int_en_missing_tail:1, // 27
int_en_data_flit_sb_e:1, // 28
int_en_cm2hcm_req_cre:1, // 29
int_en_cm2hcm_rsp_cre:1, // 30
int_en_rx_bad_didn:1, // 31
int_en_rd_dma_err_rsp:1, // 32
int_en_rd_dma_tnum_to:1, // 33
int_en_rd_dma_multi_t:1, // 34
int_en_wr_dma_err_rsp:1, // 35
int_en_wr_dma_tnum_to:1, // 36
int_en_wr_dma_multi_t:1, // 37
int_en_alg_data_overf:1, // 38
int_en_alg_data_under:1, // 39
int_en_ram0_access_co:1, // 40
int_en_ram1_access_co:1, // 41
int_en_ram2_access_co:1, // 42
int_en_ram0_perr:1, // 43
int_en_ram1_perr:1, // 44
int_en_ram2_perr:1, // 45
int_en_int_gen_rsp_er:1, // 46
int_en_int_gen_tnum_t:1, // 47
int_en_rd_dma_prog_er:1, // 48
int_en_wr_dma_prog_er:1, // 49
:14; // 63:50
};
};
struct cm_mmr {
union cm_id id;
union cm_status status;
union cm_error_detail1 err_detail1;
union cm_error_detail2 err_detail2;
union cm_control control;
union cm_req_timeout req_timeout;
uint64_t reserved1[1];
union intr_dest int_dest;
uint64_t reserved2[2];
uint64_t targ_flush;
uint64_t reserved3[1];
union cm_error_status err_status;
union cm_clr_error_status clr_err_status;
union cm_error_intr_enable int_enable;
};
union dma_hostaddr {
uint64_t dma_hostaddr_reg;
struct {
uint64_t dma_sys_addr:56, // 55:0
:8; // 63:56
};
};
union dma_localaddr {
uint64_t dma_localaddr_reg;
struct {
uint64_t dma_ram_addr:21, // 20:0
dma_ram_sel:2, // 22:21
:41; // 63:23
};
};
union dma_control {
uint64_t dma_control_reg;
struct {
uint64_t dma_op_length:16, // 15:0
:18, // 33:16
done_amo_en:1, // 34
done_int_en:1, // 35
:1, // 36
pio_mem_n:1, // 37
:26; // 63:38
};
};
union dma_amo_dest {
uint64_t dma_amo_dest_reg;
struct {
uint64_t dma_amo_sys_addr:56, // 55:0
dma_amo_mod_type:3, // 58:56
:5; // 63:59
};
};
union rdma_aux_status {
uint64_t rdma_aux_status_reg;
struct {
uint64_t op_num_pacs_left:17, // 16:0
:5, // 21:17
lrsp_buff_empty:1, // 22
:17, // 39:23
pending_reqs_left:6, // 45:40
:18; // 63:46
};
};
struct rdma_mmr {
union dma_hostaddr host_addr;
union dma_localaddr local_addr;
union dma_control control;
union dma_amo_dest amo_dest;
union intr_dest intr_dest;
union rdma_aux_status aux_status;
};
union wdma_aux_status {
uint64_t wdma_aux_status_reg;
struct {
uint64_t op_num_pacs_left:17, // 16:0
:4, // 20:17
lreq_buff_empty:1, // 21
:18, // 39:22
pending_reqs_left:6, // 45:40
:18; // 63:46
};
};
struct wdma_mmr {
union dma_hostaddr host_addr;
union dma_localaddr local_addr;
union dma_control control;
union dma_amo_dest amo_dest;
union intr_dest intr_dest;
union wdma_aux_status aux_status;
};
union algo_step {
uint64_t algo_step_reg;
struct {
uint64_t alg_step_cnt:16, // 15:0
:48; // 63:16
};
};
struct algo_mmr {
union dma_amo_dest amo_dest;
union intr_dest intr_dest;
union {
uint64_t algo_offset_reg;
struct {
uint64_t sram0_offset:7, // 6:0
reserved0:1, // 7
sram1_offset:7, // 14:8
reserved1:1, // 15
sram2_offset:7, // 22:16
reserved2:14; // 63:23
};
} sram_offset;
union algo_step step;
};
struct mbcs_mmr {
struct cm_mmr cm;
uint64_t reserved1[17];
struct rdma_mmr rdDma;
uint64_t reserved2[25];
struct wdma_mmr wrDma;
uint64_t reserved3[25];
struct algo_mmr algo;
uint64_t reserved4[156];
};
/*
* defines
*/
#define DEVICE_NAME "mbcs"
#define MBCS_PART_NUM 0xfff0
#define MBCS_PART_NUM_ALG0 0xf001
#define MBCS_MFG_NUM 0x1
struct algoblock {
uint64_t amoHostDest;
uint64_t amoModType;
uint64_t intrHostDest;
uint64_t intrVector;
uint64_t algoStepCount;
};
struct getdma {
uint64_t hostAddr;
uint64_t localAddr;
uint64_t bytes;
uint64_t DoneAmoEnable;
uint64_t DoneIntEnable;
uint64_t peerIO;
uint64_t amoHostDest;
uint64_t amoModType;
uint64_t intrHostDest;
uint64_t intrVector;
};
struct putdma {
uint64_t hostAddr;
uint64_t localAddr;
uint64_t bytes;
uint64_t DoneAmoEnable;
uint64_t DoneIntEnable;
uint64_t peerIO;
uint64_t amoHostDest;
uint64_t amoModType;
uint64_t intrHostDest;
uint64_t intrVector;
};
struct mbcs_soft {
struct list_head list;
struct cx_dev *cxdev;
int major;
int nasid;
void *mmr_base;
wait_queue_head_t dmawrite_queue;
wait_queue_head_t dmaread_queue;
wait_queue_head_t algo_queue;
struct sn_irq_info *get_sn_irq;
struct sn_irq_info *put_sn_irq;
struct sn_irq_info *algo_sn_irq;
struct getdma getdma;
struct putdma putdma;
struct algoblock algo;
uint64_t gscr_addr; // pio addr
uint64_t ram0_addr; // pio addr
uint64_t ram1_addr; // pio addr
uint64_t ram2_addr; // pio addr
uint64_t debug_addr; // pio addr
atomic_t dmawrite_done;
atomic_t dmaread_done;
atomic_t algo_done;
struct semaphore dmawritelock;
struct semaphore dmareadlock;
struct semaphore algolock;
};
extern int mbcs_open(struct inode *ip, struct file *fp);
extern ssize_t mbcs_sram_read(struct file *fp, char *buf, size_t len,
loff_t * off);
extern ssize_t mbcs_sram_write(struct file *fp, const char *buf, size_t len,
loff_t * off);
extern loff_t mbcs_sram_llseek(struct file *filp, loff_t off, int whence);
extern int mbcs_gscr_mmap(struct file *fp, struct vm_area_struct *vma);
#endif // __MBCS_H__

8
drivers/char/snsc.c
View file

@ -374,6 +374,7 @@ scdrv_init(void)
void *salbuf;
struct class_simple *snsc_class;
dev_t first_dev, dev;
nasid_t event_nasid = ia64_sn_get_console_nasid();
if (alloc_chrdev_region(&first_dev, 0, numionodes,
SYSCTL_BASENAME) < 0) {
@ -441,6 +442,13 @@ scdrv_init(void)
ia64_sn_irtr_intr_enable(scd->scd_nasid,
0 /*ignored */ ,
SAL_IROUTER_INTR_RECV);
/* on the console nasid, prepare to receive
* system controller environmental events
*/
if(scd->scd_nasid == event_nasid) {
scdrv_event_init(scd);
}
}
return 0;
}

40
drivers/char/snsc.h
View file

@ -47,4 +47,44 @@ struct sysctl_data_s {
nasid_t scd_nasid; /* Node on which subchannels are opened. */
};
/* argument types */
#define IR_ARG_INT 0x00 /* 4-byte integer (big-endian) */
#define IR_ARG_ASCII 0x01 /* null-terminated ASCII string */
#define IR_ARG_UNKNOWN 0x80 /* unknown data type. The low
* 7 bits will contain the data
* length. */
#define IR_ARG_UNKNOWN_LENGTH_MASK 0x7f
/* system controller event codes */
#define EV_CLASS_MASK 0xf000ul
#define EV_SEVERITY_MASK 0x0f00ul
#define EV_COMPONENT_MASK 0x00fful
#define EV_CLASS_POWER 0x1000ul
#define EV_CLASS_FAN 0x2000ul
#define EV_CLASS_TEMP 0x3000ul
#define EV_CLASS_ENV 0x4000ul
#define EV_CLASS_TEST_FAULT 0x5000ul
#define EV_CLASS_TEST_WARNING 0x6000ul
#define EV_CLASS_PWRD_NOTIFY 0x8000ul
#define EV_SEVERITY_POWER_STABLE 0x0000ul
#define EV_SEVERITY_POWER_LOW_WARNING 0x0100ul
#define EV_SEVERITY_POWER_HIGH_WARNING 0x0200ul
#define EV_SEVERITY_POWER_HIGH_FAULT 0x0300ul
#define EV_SEVERITY_POWER_LOW_FAULT 0x0400ul
#define EV_SEVERITY_FAN_STABLE 0x0000ul
#define EV_SEVERITY_FAN_WARNING 0x0100ul
#define EV_SEVERITY_FAN_FAULT 0x0200ul
#define EV_SEVERITY_TEMP_STABLE 0x0000ul
#define EV_SEVERITY_TEMP_ADVISORY 0x0100ul
#define EV_SEVERITY_TEMP_CRITICAL 0x0200ul
#define EV_SEVERITY_TEMP_FAULT 0x0300ul
void scdrv_event_init(struct sysctl_data_s *);
#endif /* _SN_SYSCTL_H_ */

304
drivers/char/snsc_event.c Normal file
View file

@ -0,0 +1,304 @@
/*
* SN Platform system controller communication support
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2004 Silicon Graphics, Inc. All rights reserved.
*/
/*
* System controller event handler
*
* These routines deal with environmental events arriving from the
* system controllers.
*/
#include <linux/interrupt.h>
#include <linux/sched.h>
#include <linux/byteorder/generic.h>
#include <asm/sn/sn_sal.h>
#include "snsc.h"
static struct subch_data_s *event_sd;
void scdrv_event(unsigned long);
DECLARE_TASKLET(sn_sysctl_event, scdrv_event, 0);
/*
* scdrv_event_interrupt
*
* Pull incoming environmental events off the physical link to the
* system controller and put them in a temporary holding area in SAL.
* Schedule scdrv_event() to move them along to their ultimate
* destination.
*/
static irqreturn_t
scdrv_event_interrupt(int irq, void *subch_data, struct pt_regs *regs)
{
struct subch_data_s *sd = subch_data;
unsigned long flags;
int status;
spin_lock_irqsave(&sd->sd_rlock, flags);
status = ia64_sn_irtr_intr(sd->sd_nasid, sd->sd_subch);
if ((status > 0) && (status & SAL_IROUTER_INTR_RECV)) {
tasklet_schedule(&sn_sysctl_event);
}
spin_unlock_irqrestore(&sd->sd_rlock, flags);
return IRQ_HANDLED;
}
/*
* scdrv_parse_event
*
* Break an event (as read from SAL) into useful pieces so we can decide
* what to do with it.
*/
static int
scdrv_parse_event(char *event, int *src, int *code, int *esp_code, char *desc)
{
char *desc_end;
/* record event source address */
*src = be32_to_cpup((__be32 *)event);
event += 4; /* move on to event code */
/* record the system controller's event code */
*code = be32_to_cpup((__be32 *)event);
event += 4; /* move on to event arguments */
/* how many arguments are in the packet? */
if (*event++ != 2) {
/* if not 2, give up */
return -1;
}
/* parse out the ESP code */
if (*event++ != IR_ARG_INT) {
/* not an integer argument, so give up */
return -1;
}
*esp_code = be32_to_cpup((__be32 *)event);
event += 4;
/* parse out the event description */
if (*event++ != IR_ARG_ASCII) {
/* not an ASCII string, so give up */
return -1;
}
event[CHUNKSIZE-1] = '\0'; /* ensure this string ends! */
event += 2; /* skip leading CR/LF */
desc_end = desc + sprintf(desc, "%s", event);
/* strip trailing CR/LF (if any) */
for (desc_end--;
(desc_end != desc) && ((*desc_end == 0xd) || (*desc_end == 0xa));
desc_end--) {
*desc_end = '\0';
}
return 0;
}
/*
* scdrv_event_severity
*
* Figure out how urgent a message we should write to the console/syslog
* via printk.
*/
static char *
scdrv_event_severity(int code)
{
int ev_class = (code & EV_CLASS_MASK);
int ev_severity = (code & EV_SEVERITY_MASK);
char *pk_severity = KERN_NOTICE;
switch (ev_class) {
case EV_CLASS_POWER:
switch (ev_severity) {
case EV_SEVERITY_POWER_LOW_WARNING:
case EV_SEVERITY_POWER_HIGH_WARNING:
pk_severity = KERN_WARNING;
break;
case EV_SEVERITY_POWER_HIGH_FAULT:
case EV_SEVERITY_POWER_LOW_FAULT:
pk_severity = KERN_ALERT;
break;
}
break;
case EV_CLASS_FAN:
switch (ev_severity) {
case EV_SEVERITY_FAN_WARNING:
pk_severity = KERN_WARNING;
break;
case EV_SEVERITY_FAN_FAULT:
pk_severity = KERN_CRIT;
break;
}
break;
case EV_CLASS_TEMP:
switch (ev_severity) {
case EV_SEVERITY_TEMP_ADVISORY:
pk_severity = KERN_WARNING;
break;
case EV_SEVERITY_TEMP_CRITICAL:
pk_severity = KERN_CRIT;
break;
case EV_SEVERITY_TEMP_FAULT:
pk_severity = KERN_ALERT;
break;
}
break;
case EV_CLASS_ENV:
pk_severity = KERN_ALERT;
break;
case EV_CLASS_TEST_FAULT:
pk_severity = KERN_ALERT;
break;
case EV_CLASS_TEST_WARNING:
pk_severity = KERN_WARNING;
break;
case EV_CLASS_PWRD_NOTIFY:
pk_severity = KERN_ALERT;
break;
}
return pk_severity;
}
/*
* scdrv_dispatch_event
*
* Do the right thing with an incoming event. That's often nothing
* more than printing it to the system log. For power-down notifications
* we start a graceful shutdown.
*/
static void
scdrv_dispatch_event(char *event, int len)
{
int code, esp_code, src;
char desc[CHUNKSIZE];
char *severity;
if (scdrv_parse_event(event, &src, &code, &esp_code, desc) < 0) {
/* ignore uninterpretible event */
return;
}
/* how urgent is the message? */
severity = scdrv_event_severity(code);
if ((code & EV_CLASS_MASK) == EV_CLASS_PWRD_NOTIFY) {
struct task_struct *p;
/* give a SIGPWR signal to init proc */
/* first find init's task */
read_lock(&tasklist_lock);
for_each_process(p) {
if (p->pid == 1)
break;
}
if (p) { /* we found init's task */
printk(KERN_EMERG "Power off indication received. Initiating power fail sequence...\n");
force_sig(SIGPWR, p);
} else { /* failed to find init's task - just give message(s) */
printk(KERN_WARNING "Failed to find init proc to handle power off!\n");
printk("%s|$(0x%x)%s\n", severity, esp_code, desc);
}
read_unlock(&tasklist_lock);
} else {
/* print to system log */
printk("%s|$(0x%x)%s\n", severity, esp_code, desc);
}
}
/*
* scdrv_event
*
* Called as a tasklet when an event arrives from the L1. Read the event
* from where it's temporarily stored in SAL and call scdrv_dispatch_event()
* to send it on its way. Keep trying to read events until SAL indicates
* that there are no more immediately available.
*/
void
scdrv_event(unsigned long dummy)
{
int status;
int len;
unsigned long flags;
struct subch_data_s *sd = event_sd;
/* anything to read? */
len = CHUNKSIZE;
spin_lock_irqsave(&sd->sd_rlock, flags);
status = ia64_sn_irtr_recv(sd->sd_nasid, sd->sd_subch,
sd->sd_rb, &len);
while (!(status < 0)) {
spin_unlock_irqrestore(&sd->sd_rlock, flags);
scdrv_dispatch_event(sd->sd_rb, len);
len = CHUNKSIZE;
spin_lock_irqsave(&sd->sd_rlock, flags);
status = ia64_sn_irtr_recv(sd->sd_nasid, sd->sd_subch,
sd->sd_rb, &len);
}
spin_unlock_irqrestore(&sd->sd_rlock, flags);
}
/*
* scdrv_event_init
*
* Sets up a system controller subchannel to begin receiving event
* messages. This is sort of a specialized version of scdrv_open()
* in drivers/char/sn_sysctl.c.
*/
void
scdrv_event_init(struct sysctl_data_s *scd)
{
int rv;
event_sd = kmalloc(sizeof (struct subch_data_s), GFP_KERNEL);
if (event_sd == NULL) {
printk(KERN_WARNING "%s: couldn't allocate subchannel info"
" for event monitoring\n", __FUNCTION__);
return;
}
/* initialize subch_data_s fields */
memset(event_sd, 0, sizeof (struct subch_data_s));
event_sd->sd_nasid = scd->scd_nasid;
spin_lock_init(&event_sd->sd_rlock);
/* ask the system controllers to send events to this node */
event_sd->sd_subch = ia64_sn_sysctl_event_init(scd->scd_nasid);
if (event_sd->sd_subch < 0) {
kfree(event_sd);
printk(KERN_WARNING "%s: couldn't open event subchannel\n",
__FUNCTION__);
return;
}
/* hook event subchannel up to the system controller interrupt */
rv = request_irq(SGI_UART_VECTOR, scdrv_event_interrupt,
SA_SHIRQ | SA_INTERRUPT,
"system controller events", event_sd);
if (rv) {
printk(KERN_WARNING "%s: irq request failed (%d)\n",
__FUNCTION__, rv);
ia64_sn_irtr_close(event_sd->sd_nasid, event_sd->sd_subch);
kfree(event_sd);
return;
}
}

1
include/asm-ia64/hw_irq.h
View file

@ -81,6 +81,7 @@ extern __u8 isa_irq_to_vector_map[16];
extern struct hw_interrupt_type irq_type_ia64_lsapic; /* CPU-internal interrupt controller */
extern int assign_irq_vector_nopanic (int irq); /* allocate a free vector without panic */
extern int assign_irq_vector (int irq); /* allocate a free vector */
extern void free_irq_vector (int vector);
extern void ia64_send_ipi (int cpu, int vector, int delivery_mode, int redirect);

68
include/asm-ia64/pal.h
View file

@ -67,6 +67,7 @@
#define PAL_REGISTER_INFO 39 /* return AR and CR register information*/
#define PAL_SHUTDOWN 40 /* enter processor shutdown state */
#define PAL_PREFETCH_VISIBILITY 41 /* Make Processor Prefetches Visible */
#define PAL_LOGICAL_TO_PHYSICAL 42 /* returns information on logical to physical processor mapping */
#define PAL_COPY_PAL 256 /* relocate PAL procedures and PAL PMI */
#define PAL_HALT_INFO 257 /* return the low power capabilities of processor */
@ -1559,6 +1560,73 @@ ia64_pal_prefetch_visibility (s64 trans_type)
return iprv.status;
}
/* data structure for getting information on logical to physical mappings */
typedef union pal_log_overview_u {
struct {
u64 num_log :16, /* Total number of logical
* processors on this die
*/
tpc :8, /* Threads per core */
reserved3 :8, /* Reserved */
cpp :8, /* Cores per processor */
reserved2 :8, /* Reserved */
ppid :8, /* Physical processor ID */
reserved1 :8; /* Reserved */
} overview_bits;
u64 overview_data;
} pal_log_overview_t;
typedef union pal_proc_n_log_info1_u{
struct {
u64 tid :16, /* Thread id */
reserved2 :16, /* Reserved */
cid :16, /* Core id */
reserved1 :16; /* Reserved */
} ppli1_bits;
u64 ppli1_data;
} pal_proc_n_log_info1_t;
typedef union pal_proc_n_log_info2_u {
struct {
u64 la :16, /* Logical address */
reserved :48; /* Reserved */
} ppli2_bits;
u64 ppli2_data;
} pal_proc_n_log_info2_t;
typedef struct pal_logical_to_physical_s
{
pal_log_overview_t overview;
pal_proc_n_log_info1_t ppli1;
pal_proc_n_log_info2_t ppli2;
} pal_logical_to_physical_t;
#define overview_num_log overview.overview_bits.num_log
#define overview_tpc overview.overview_bits.tpc
#define overview_cpp overview.overview_bits.cpp
#define overview_ppid overview.overview_bits.ppid
#define log1_tid ppli1.ppli1_bits.tid
#define log1_cid ppli1.ppli1_bits.cid
#define log2_la ppli2.ppli2_bits.la
/* Get information on logical to physical processor mappings. */
static inline s64
ia64_pal_logical_to_phys(u64 proc_number, pal_logical_to_physical_t *mapping)
{
struct ia64_pal_retval iprv;
PAL_CALL(iprv, PAL_LOGICAL_TO_PHYSICAL, proc_number, 0, 0);
if (iprv.status == PAL_STATUS_SUCCESS)
{
if (proc_number == 0)
mapping->overview.overview_data = iprv.v0;
mapping->ppli1.ppli1_data = iprv.v1;
mapping->ppli2.ppli2_data = iprv.v2;
}
return iprv.status;
}
#endif /* __ASSEMBLY__ */
#endif /* _ASM_IA64_PAL_H */

12
include/asm-ia64/perfmon.h
View file

@ -254,6 +254,18 @@ extern int pfm_mod_write_dbrs(struct task_struct *task, void *req, unsigned int
#define PFM_CPUINFO_DCR_PP 0x2 /* if set the system wide session has started */
#define PFM_CPUINFO_EXCL_IDLE 0x4 /* the system wide session excludes the idle task */
/*
* sysctl control structure. visible to sampling formats
*/
typedef struct {
int debug; /* turn on/off debugging via syslog */
int debug_ovfl; /* turn on/off debug printk in overflow handler */
int fastctxsw; /* turn on/off fast (unsecure) ctxsw */
int expert_mode; /* turn on/off value checking */
} pfm_sysctl_t;
extern pfm_sysctl_t pfm_sysctl;
#endif /* __KERNEL__ */
#endif /* _ASM_IA64_PERFMON_H */

158
include/asm-ia64/pgalloc.h
View file

@ -22,146 +22,124 @@
#include <asm/mmu_context.h>
/*
* Very stupidly, we used to get new pgd's and pmd's, init their contents
* to point to the NULL versions of the next level page table, later on
* completely re-init them the same way, then free them up. This wasted
* a lot of work and caused unnecessary memory traffic. How broken...
* We fix this by caching them.
*/
#define pgd_quicklist (local_cpu_data->pgd_quick)
#define pmd_quicklist (local_cpu_data->pmd_quick)
#define pgtable_cache_size (local_cpu_data->pgtable_cache_sz)
DECLARE_PER_CPU(unsigned long *, __pgtable_quicklist);
#define pgtable_quicklist __ia64_per_cpu_var(__pgtable_quicklist)
DECLARE_PER_CPU(long, __pgtable_quicklist_size);
#define pgtable_quicklist_size __ia64_per_cpu_var(__pgtable_quicklist_size)
static inline pgd_t*
pgd_alloc_one_fast (struct mm_struct *mm)
static inline long pgtable_quicklist_total_size(void)
{
long ql_size = 0;
int cpuid;
for_each_online_cpu(cpuid) {
ql_size += per_cpu(__pgtable_quicklist_size, cpuid);
}
return ql_size;
}
static inline void *pgtable_quicklist_alloc(void)
{
unsigned long *ret = NULL;
preempt_disable();
ret = pgd_quicklist;
ret = pgtable_quicklist;
if (likely(ret != NULL)) {
pgd_quicklist = (unsigned long *)(*ret);
pgtable_quicklist = (unsigned long *)(*ret);
ret[0] = 0;
--pgtable_cache_size;
} else
ret = NULL;
preempt_enable();
return (pgd_t *) ret;
}
static inline pgd_t*
pgd_alloc (struct mm_struct *mm)
{
/* the VM system never calls pgd_alloc_one_fast(), so we do it here. */
pgd_t *pgd = pgd_alloc_one_fast(mm);
if (unlikely(pgd == NULL)) {
pgd = (pgd_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
--pgtable_quicklist_size;
preempt_enable();
} else {
preempt_enable();
ret = (unsigned long *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
}
return pgd;
return ret;
}
static inline void
pgd_free (pgd_t *pgd)
static inline void pgtable_quicklist_free(void *pgtable_entry)
{
#ifdef CONFIG_NUMA
unsigned long nid = page_to_nid(virt_to_page(pgtable_entry));
if (unlikely(nid != numa_node_id())) {
free_page((unsigned long)pgtable_entry);
return;
}
#endif
preempt_disable();
*(unsigned long *)pgd = (unsigned long) pgd_quicklist;
pgd_quicklist = (unsigned long *) pgd;
++pgtable_cache_size;
*(unsigned long *)pgtable_entry = (unsigned long)pgtable_quicklist;
pgtable_quicklist = (unsigned long *)pgtable_entry;
++pgtable_quicklist_size;
preempt_enable();
}
static inline pgd_t *pgd_alloc(struct mm_struct *mm)
{
return pgtable_quicklist_alloc();
}
static inline void pgd_free(pgd_t * pgd)
{
pgtable_quicklist_free(pgd);
}
static inline void
pud_populate (struct mm_struct *mm, pud_t *pud_entry, pmd_t *pmd)
pud_populate(struct mm_struct *mm, pud_t * pud_entry, pmd_t * pmd)
{
pud_val(*pud_entry) = __pa(pmd);
}
static inline pmd_t*
pmd_alloc_one_fast (struct mm_struct *mm, unsigned long addr)
static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
{
unsigned long *ret = NULL;
preempt_disable();
ret = (unsigned long *)pmd_quicklist;
if (likely(ret != NULL)) {
pmd_quicklist = (unsigned long *)(*ret);
ret[0] = 0;
--pgtable_cache_size;
}
preempt_enable();
return (pmd_t *)ret;
return pgtable_quicklist_alloc();
}
static inline pmd_t*
pmd_alloc_one (struct mm_struct *mm, unsigned long addr)
static inline void pmd_free(pmd_t * pmd)
{
pmd_t *pmd = (pmd_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
return pmd;
}
static inline void
pmd_free (pmd_t *pmd)
{
preempt_disable();
*(unsigned long *)pmd = (unsigned long) pmd_quicklist;
pmd_quicklist = (unsigned long *) pmd;
++pgtable_cache_size;
preempt_enable();
pgtable_quicklist_free(pmd);
}
#define __pmd_free_tlb(tlb, pmd) pmd_free(pmd)
static inline void
pmd_populate (struct mm_struct *mm, pmd_t *pmd_entry, struct page *pte)
pmd_populate(struct mm_struct *mm, pmd_t * pmd_entry, struct page *pte)
{
pmd_val(*pmd_entry) = page_to_phys(pte);
}
static inline void
pmd_populate_kernel (struct mm_struct *mm, pmd_t *pmd_entry, pte_t *pte)
pmd_populate_kernel(struct mm_struct *mm, pmd_t * pmd_entry, pte_t * pte)
{
pmd_val(*pmd_entry) = __pa(pte);
}
static inline struct page *
pte_alloc_one (struct mm_struct *mm, unsigned long addr)
static inline struct page *pte_alloc_one(struct mm_struct *mm,
unsigned long addr)
{
struct page *pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0);
return pte;
return virt_to_page(pgtable_quicklist_alloc());
}
static inline pte_t *
pte_alloc_one_kernel (struct mm_struct *mm, unsigned long addr)
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
unsigned long addr)
{
pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
return pte;
return pgtable_quicklist_alloc();
}
static inline void
pte_free (struct page *pte)
static inline void pte_free(struct page *pte)
{
__free_page(pte);
pgtable_quicklist_free(page_address(pte));
}
static inline void
pte_free_kernel (pte_t *pte)
static inline void pte_free_kernel(pte_t * pte)
{
free_page((unsigned long) pte);
pgtable_quicklist_free(pte);
}
#define __pte_free_tlb(tlb, pte) tlb_remove_page((tlb), (pte))
#define __pte_free_tlb(tlb, pte) pte_free(pte)
extern void check_pgt_cache (void);
extern void check_pgt_cache(void);
#endif /* _ASM_IA64_PGALLOC_H */
#endif /* _ASM_IA64_PGALLOC_H */

10
include/asm-ia64/processor.h
View file

@ -137,9 +137,6 @@ struct cpuinfo_ia64 {
__u64 nsec_per_cyc; /* (1000000000<<IA64_NSEC_PER_CYC_SHIFT)/itc_freq */
__u64 unimpl_va_mask; /* mask of unimplemented virtual address bits (from PAL) */
__u64 unimpl_pa_mask; /* mask of unimplemented physical address bits (from PAL) */
__u64 *pgd_quick;
__u64 *pmd_quick;
__u64 pgtable_cache_sz;
__u64 itc_freq; /* frequency of ITC counter */
__u64 proc_freq; /* frequency of processor */
__u64 cyc_per_usec; /* itc_freq/1000000 */
@ -151,6 +148,13 @@ struct cpuinfo_ia64 {
#ifdef CONFIG_SMP
__u64 loops_per_jiffy;
int cpu;
__u32 socket_id; /* physical processor socket id */
__u16 core_id; /* core id */
__u16 thread_id; /* thread id */
__u16 num_log; /* Total number of logical processors on
* this socket that were successfully booted */
__u8 cores_per_socket; /* Cores per processor socket */
__u8 threads_per_core; /* Threads per core */
#endif
/* CPUID-derived information: */

12
include/asm-ia64/sal.h
View file

@ -91,6 +91,7 @@ extern spinlock_t sal_lock;
#define SAL_PCI_CONFIG_READ 0x01000010
#define SAL_PCI_CONFIG_WRITE 0x01000011
#define SAL_FREQ_BASE 0x01000012
#define SAL_PHYSICAL_ID_INFO 0x01000013
#define SAL_UPDATE_PAL 0x01000020
@ -815,6 +816,17 @@ ia64_sal_update_pal (u64 param_buf, u64 scratch_buf, u64 scratch_buf_size,
return isrv.status;
}
/* Get physical processor die mapping in the platform. */
static inline s64
ia64_sal_physical_id_info(u16 *splid)
{
struct ia64_sal_retval isrv;
SAL_CALL(isrv, SAL_PHYSICAL_ID_INFO, 0, 0, 0, 0, 0, 0, 0);
if (splid)
*splid = isrv.v0;
return isrv.status;
}
extern unsigned long sal_platform_features;
extern int (*salinfo_platform_oemdata)(const u8 *, u8 **, u64 *);

5
include/asm-ia64/smp.h
View file

@ -56,6 +56,10 @@ extern struct smp_boot_data {
extern char no_int_routing __devinitdata;
extern cpumask_t cpu_online_map;
extern cpumask_t cpu_core_map[NR_CPUS];
extern cpumask_t cpu_sibling_map[NR_CPUS];
extern int smp_num_siblings;
extern int smp_num_cpucores;
extern void __iomem *ipi_base_addr;
extern unsigned char smp_int_redirect;
@ -124,6 +128,7 @@ extern int smp_call_function_single (int cpuid, void (*func) (void *info), void
extern void smp_send_reschedule (int cpu);
extern void lock_ipi_calllock(void);
extern void unlock_ipi_calllock(void);
extern void identify_siblings (struct cpuinfo_ia64 *);
#else

6
include/asm-ia64/sn/addrs.h
View file

@ -154,8 +154,9 @@
* the chiplet id is zero. If we implement TIO-TIO dma, we might need
* to insert a chiplet id into this macro. However, it is our belief
* right now that this chiplet id will be ICE, which is also zero.
* Nasid starts on bit 40.
*/
#define PHYS_TO_TIODMA(x) ( (((u64)(x) & NASID_MASK) << 2) | NODE_OFFSET(x))
#define PHYS_TO_TIODMA(x) ( (((u64)(NASID_GET(x))) << 40) | NODE_OFFSET(x))
#define PHYS_TO_DMA(x) ( (((u64)(x) & NASID_MASK) >> 2) | NODE_OFFSET(x))
@ -168,7 +169,10 @@
#define TIO_BWIN_SIZE_BITS 30 /* big window size: 1G */
#define NODE_SWIN_BASE(n, w) ((w == 0) ? NODE_BWIN_BASE((n), SWIN0_BIGWIN) \
: RAW_NODE_SWIN_BASE(n, w))
#define TIO_SWIN_BASE(n, w) (TIO_IO_BASE(n) + \
((u64) (w) << TIO_SWIN_SIZE_BITS))
#define NODE_IO_BASE(n) (GLOBAL_MMR_SPACE | NASID_SPACE(n))
#define TIO_IO_BASE(n) (UNCACHED | NASID_SPACE(n))
#define BWIN_SIZE (1UL << BWIN_SIZE_BITS)
#define NODE_BWIN_BASE0(n) (NODE_IO_BASE(n) + BWIN_SIZE)
#define NODE_BWIN_BASE(n, w) (NODE_BWIN_BASE0(n) + ((u64) (w) << BWIN_SIZE_BITS))

53
include/asm-ia64/sn/bte.h
View file

@ -3,7 +3,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (c) 2000-2004 Silicon Graphics, Inc. All Rights Reserved.
* Copyright (c) 2000-2005 Silicon Graphics, Inc. All Rights Reserved.
*/
@ -13,8 +13,12 @@
#include <linux/timer.h>
#include <linux/spinlock.h>
#include <linux/cache.h>
#include <asm/sn/pda.h>
#include <asm/sn/types.h>
#include <asm/sn/shub_mmr.h>
#define IBCT_NOTIFY (0x1UL << 4)
#define IBCT_ZFIL_MODE (0x1UL << 0)
/* #define BTE_DEBUG */
/* #define BTE_DEBUG_VERBOSE */
@ -39,8 +43,36 @@
/* Define hardware */
#define BTES_PER_NODE 2
#define BTES_PER_NODE (is_shub2() ? 4 : 2)
#define MAX_BTES_PER_NODE 4
#define BTE2OFF_CTRL (0)
#define BTE2OFF_SRC (SH2_BT_ENG_SRC_ADDR_0 - SH2_BT_ENG_CSR_0)
#define BTE2OFF_DEST (SH2_BT_ENG_DEST_ADDR_0 - SH2_BT_ENG_CSR_0)
#define BTE2OFF_NOTIFY (SH2_BT_ENG_NOTIF_ADDR_0 - SH2_BT_ENG_CSR_0)
#define BTE_BASE_ADDR(interface) \
(is_shub2() ? (interface == 0) ? SH2_BT_ENG_CSR_0 : \
(interface == 1) ? SH2_BT_ENG_CSR_1 : \
(interface == 2) ? SH2_BT_ENG_CSR_2 : \
SH2_BT_ENG_CSR_3 \
: (interface == 0) ? IIO_IBLS0 : IIO_IBLS1)
#define BTE_SOURCE_ADDR(base) \
(is_shub2() ? base + (BTE2OFF_SRC/8) \
: base + (BTEOFF_SRC/8))
#define BTE_DEST_ADDR(base) \
(is_shub2() ? base + (BTE2OFF_DEST/8) \
: base + (BTEOFF_DEST/8))
#define BTE_CTRL_ADDR(base) \
(is_shub2() ? base + (BTE2OFF_CTRL/8) \
: base + (BTEOFF_CTRL/8))
#define BTE_NOTIF_ADDR(base) \
(is_shub2() ? base + (BTE2OFF_NOTIFY/8) \
: base + (BTEOFF_NOTIFY/8))
/* Define hardware modes */
#define BTE_NOTIFY (IBCT_NOTIFY)
@ -68,14 +100,18 @@
#define BTE_LNSTAT_STORE(_bte, _x) \
HUB_S(_bte->bte_base_addr, (_x))
#define BTE_SRC_STORE(_bte, _x) \
HUB_S(_bte->bte_base_addr + (BTEOFF_SRC/8), (_x))
HUB_S(_bte->bte_source_addr, (_x))
#define BTE_DEST_STORE(_bte, _x) \
HUB_S(_bte->bte_base_addr + (BTEOFF_DEST/8), (_x))
HUB_S(_bte->bte_destination_addr, (_x))
#define BTE_CTRL_STORE(_bte, _x) \
HUB_S(_bte->bte_base_addr + (BTEOFF_CTRL/8), (_x))
HUB_S(_bte->bte_control_addr, (_x))
#define BTE_NOTIF_STORE(_bte, _x) \
HUB_S(_bte->bte_base_addr + (BTEOFF_NOTIFY/8), (_x))
HUB_S(_bte->bte_notify_addr, (_x))
#define BTE_START_TRANSFER(_bte, _len, _mode) \
is_shub2() ? BTE_CTRL_STORE(_bte, IBLS_BUSY | (_mode << 24) | _len) \
: BTE_LNSTAT_STORE(_bte, _len); \
BTE_CTRL_STORE(_bte, _mode)
/* Possible results from bte_copy and bte_unaligned_copy */
/* The following error codes map into the BTE hardware codes
@ -110,6 +146,10 @@ typedef enum {
struct bteinfo_s {
volatile u64 notify ____cacheline_aligned;
u64 *bte_base_addr ____cacheline_aligned;
u64 *bte_source_addr;
u64 *bte_destination_addr;
u64 *bte_control_addr;
u64 *bte_notify_addr;
spinlock_t spinlock;
cnodeid_t bte_cnode; /* cnode */
int bte_error_count; /* Number of errors encountered */
@ -117,6 +157,7 @@ struct bteinfo_s {
int cleanup_active; /* Interface is locked for cleanup */
volatile bte_result_t bh_error; /* error while processing */
volatile u64 *most_rcnt_na;
struct bteinfo_s *btes_to_try[MAX_BTES_PER_NODE];
};

45
include/asm-ia64/sn/geo.h
View file

@ -18,32 +18,34 @@
#define GEOID_SIZE 8 /* Would 16 be better? The size can
be different on different platforms. */
#define MAX_SLABS 0xe /* slabs per module */
#define MAX_SLOTS 0xf /* slots per module */
#define MAX_SLABS 0xf /* slabs per slot */
typedef unsigned char geo_type_t;
/* Fields common to all substructures */
typedef struct geo_any_s {
typedef struct geo_common_s {
moduleid_t module; /* The module (box) this h/w lives in */
geo_type_t type; /* What type of h/w is named by this geoid_t */
slabid_t slab; /* The logical assembly within the module */
} geo_any_t;
slabid_t slab:4; /* slab (ASIC), 0 .. 15 within slot */
slotid_t slot:4; /* slot (Blade), 0 .. 15 within module */
} geo_common_t;
/* Additional fields for particular types of hardware */
typedef struct geo_node_s {
geo_any_t any; /* No additional fields needed */
geo_common_t common; /* No additional fields needed */
} geo_node_t;
typedef struct geo_rtr_s {
geo_any_t any; /* No additional fields needed */
geo_common_t common; /* No additional fields needed */
} geo_rtr_t;
typedef struct geo_iocntl_s {
geo_any_t any; /* No additional fields needed */
geo_common_t common; /* No additional fields needed */
} geo_iocntl_t;
typedef struct geo_pcicard_s {
geo_iocntl_t any;
geo_iocntl_t common;
char bus; /* Bus/widget number */
char slot; /* PCI slot number */
} geo_pcicard_t;
@ -62,14 +64,14 @@ typedef struct geo_mem_s {
typedef union geoid_u {
geo_any_t any;
geo_node_t node;
geo_common_t common;
geo_node_t node;
geo_iocntl_t iocntl;
geo_pcicard_t pcicard;
geo_rtr_t rtr;
geo_cpu_t cpu;
geo_mem_t mem;
char padsize[GEOID_SIZE];
geo_rtr_t rtr;
geo_cpu_t cpu;
geo_mem_t mem;
char padsize[GEOID_SIZE];
} geoid_t;
@ -104,19 +106,26 @@ typedef union geoid_u {
#define INVALID_CNODEID ((cnodeid_t)-1)
#define INVALID_PNODEID ((pnodeid_t)-1)
#define INVALID_SLAB (slabid_t)-1
#define INVALID_SLOT (slotid_t)-1
#define INVALID_MODULE ((moduleid_t)-1)
#define INVALID_PARTID ((partid_t)-1)
static inline slabid_t geo_slab(geoid_t g)
{
return (g.any.type == GEO_TYPE_INVALID) ?
INVALID_SLAB : g.any.slab;
return (g.common.type == GEO_TYPE_INVALID) ?
INVALID_SLAB : g.common.slab;
}
static inline slotid_t geo_slot(geoid_t g)
{
return (g.common.type == GEO_TYPE_INVALID) ?
INVALID_SLOT : g.common.slot;
}
static inline moduleid_t geo_module(geoid_t g)
{
return (g.any.type == GEO_TYPE_INVALID) ?
INVALID_MODULE : g.any.module;
return (g.common.type == GEO_TYPE_INVALID) ?
INVALID_MODULE : g.common.module;
}
extern geoid_t cnodeid_get_geoid(cnodeid_t cnode);

4
include/asm-ia64/sn/nodepda.h
View file

@ -3,7 +3,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 1992 - 1997, 2000-2004 Silicon Graphics, Inc. All rights reserved.
* Copyright (C) 1992 - 1997, 2000-2005 Silicon Graphics, Inc. All rights reserved.
*/
#ifndef _ASM_IA64_SN_NODEPDA_H
#define _ASM_IA64_SN_NODEPDA_H
@ -43,7 +43,7 @@ struct nodepda_s {
/*
* The BTEs on this node are shared by the local cpus
*/
struct bteinfo_s bte_if[BTES_PER_NODE]; /* Virtual Interface */
struct bteinfo_s bte_if[MAX_BTES_PER_NODE]; /* Virtual Interface */
struct timer_list bte_recovery_timer;
spinlock_t bte_recovery_lock;

13
arch/ia64/sn/include/pci/pcibus_provider_defs.h → include/asm-ia64/sn/pcibus_provider_defs.h
View file

@ -17,6 +17,9 @@
#define PCIIO_ASIC_TYPE_PPB 1
#define PCIIO_ASIC_TYPE_PIC 2
#define PCIIO_ASIC_TYPE_TIOCP 3
#define PCIIO_ASIC_TYPE_TIOCA 4
#define PCIIO_ASIC_MAX_TYPES 5
/*
* Common pciio bus provider data. There should be one of these as the
@ -35,9 +38,15 @@ struct pcibus_bussoft {
};
/*
* DMA mapping flags
* SN pci bus indirection
*/
#define SN_PCIDMA_CONSISTENT 0x0001
struct sn_pcibus_provider {
dma_addr_t (*dma_map)(struct pci_dev *, unsigned long, size_t);
dma_addr_t (*dma_map_consistent)(struct pci_dev *, unsigned long, size_t);
void (*dma_unmap)(struct pci_dev *, dma_addr_t, int);
void * (*bus_fixup)(struct pcibus_bussoft *);
};
extern struct sn_pcibus_provider *sn_pci_provider[];
#endif /* _ASM_IA64_SN_PCI_PCIBUS_PROVIDER_H */

4
arch/ia64/sn/include/pci/pcidev.h → include/asm-ia64/sn/pcidev.h
View file

@ -32,6 +32,9 @@ extern struct sn_irq_info **sn_irq;
#define SN_PCIDEV_BUSSOFT(pci_dev) \
(SN_PCIDEV_INFO(pci_dev)->pdi_host_pcidev_info->pdi_pcibus_info)
#define SN_PCIDEV_BUSPROVIDER(pci_dev) \
(SN_PCIDEV_INFO(pci_dev)->pdi_provider)
#define PCIIO_BUS_NONE 255 /* bus 255 reserved */
#define PCIIO_SLOT_NONE 255
#define PCIIO_FUNC_NONE 255
@ -46,6 +49,7 @@ struct pcidev_info {
struct pci_dev *pdi_linux_pcidev; /* Kernel pci_dev */
struct sn_irq_info *pdi_sn_irq_info;
struct sn_pcibus_provider *pdi_provider; /* sn pci ops */
};
extern void sn_irq_fixup(struct pci_dev *pci_dev,

3
include/asm-ia64/sn/pda.h
View file

@ -3,7 +3,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 1992 - 1997, 2000-2004 Silicon Graphics, Inc. All rights reserved.
* Copyright (C) 1992 - 1997, 2000-2005 Silicon Graphics, Inc. All rights reserved.
*/
#ifndef _ASM_IA64_SN_PDA_H
#define _ASM_IA64_SN_PDA_H
@ -11,7 +11,6 @@
#include <linux/cache.h>
#include <asm/percpu.h>
#include <asm/system.h>
#include <asm/sn/bte.h>
/*

37
include/asm-ia64/sn/shub_mmr.h
View file

@ -4,7 +4,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (c) 2001-2004 Silicon Graphics, Inc. All rights reserved.
* Copyright (c) 2001-2005 Silicon Graphics, Inc. All rights reserved.
*/
#ifndef _ASM_IA64_SN_SHUB_MMR_H
@ -129,6 +129,23 @@
#define SH_EVENT_OCCURRED_II_INT1_SHFT 30
#define SH_EVENT_OCCURRED_II_INT1_MASK 0x0000000040000000
/* SH2_EVENT_OCCURRED_EXTIO_INT2 */
/* Description: Pending SHUB 2 EXT IO INT2 */
#define SH2_EVENT_OCCURRED_EXTIO_INT2_SHFT 33
#define SH2_EVENT_OCCURRED_EXTIO_INT2_MASK 0x0000000200000000
/* SH2_EVENT_OCCURRED_EXTIO_INT3 */
/* Description: Pending SHUB 2 EXT IO INT3 */
#define SH2_EVENT_OCCURRED_EXTIO_INT3_SHFT 34
#define SH2_EVENT_OCCURRED_EXTIO_INT3_MASK 0x0000000400000000
#define SH_ALL_INT_MASK \
(SH_EVENT_OCCURRED_UART_INT_MASK | SH_EVENT_OCCURRED_IPI_INT_MASK | \
SH_EVENT_OCCURRED_II_INT0_MASK | SH_EVENT_OCCURRED_II_INT1_MASK | \
SH_EVENT_OCCURRED_II_INT1_MASK | SH2_EVENT_OCCURRED_EXTIO_INT2_MASK | \
SH2_EVENT_OCCURRED_EXTIO_INT3_MASK)
/* ==================================================================== */
/* LEDS */
/* ==================================================================== */
@ -438,4 +455,22 @@
#define SH_INT_CMPC shubmmr(SH, INT_CMPC)
#define SH_INT_CMPD shubmmr(SH, INT_CMPD)
/* ========================================================================== */
/* Register "SH2_BT_ENG_CSR_0" */
/* Engine 0 Control and Status Register */
/* ========================================================================== */
#define SH2_BT_ENG_CSR_0 0x0000000030040000
#define SH2_BT_ENG_SRC_ADDR_0 0x0000000030040080
#define SH2_BT_ENG_DEST_ADDR_0 0x0000000030040100
#define SH2_BT_ENG_NOTIF_ADDR_0 0x0000000030040180
/* ========================================================================== */
/* BTE interfaces 1-3 */
/* ========================================================================== */
#define SH2_BT_ENG_CSR_1 0x0000000030050000
#define SH2_BT_ENG_CSR_2 0x0000000030060000
#define SH2_BT_ENG_CSR_3 0x0000000030070000
#endif /* _ASM_IA64_SN_SHUB_MMR_H */

46
include/asm-ia64/sn/sn_sal.h
View file

@ -8,7 +8,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (c) 2000-2004 Silicon Graphics, Inc. All rights reserved.
* Copyright (c) 2000-2005 Silicon Graphics, Inc. All rights reserved.
*/
@ -35,8 +35,8 @@
#define SN_SAL_PRINT_ERROR 0x02000012
#define SN_SAL_SET_ERROR_HANDLING_FEATURES 0x0200001a // reentrant
#define SN_SAL_GET_FIT_COMPT 0x0200001b // reentrant
#define SN_SAL_GET_SN_INFO 0x0200001c
#define SN_SAL_GET_SAPIC_INFO 0x0200001d
#define SN_SAL_GET_SN_INFO 0x0200001e
#define SN_SAL_CONSOLE_PUTC 0x02000021
#define SN_SAL_CONSOLE_GETC 0x02000022
#define SN_SAL_CONSOLE_PUTS 0x02000023
@ -64,6 +64,7 @@
#define SN_SAL_SYSCTL_IOBRICK_PCI_OP 0x02000042 // reentrant
#define SN_SAL_IROUTER_OP 0x02000043
#define SN_SAL_SYSCTL_EVENT 0x02000044
#define SN_SAL_IOIF_INTERRUPT 0x0200004a
#define SN_SAL_HWPERF_OP 0x02000050 // lock
#define SN_SAL_IOIF_ERROR_INTERRUPT 0x02000051
@ -76,7 +77,8 @@
#define SN_SAL_IOIF_GET_WIDGET_DMAFLUSH_LIST 0x02000058
#define SN_SAL_HUB_ERROR_INTERRUPT 0x02000060
#define SN_SAL_BTE_RECOVER 0x02000061
#define SN_SAL_IOIF_GET_PCI_TOPOLOGY 0x02000062
/*
* Service-specific constants
@ -849,6 +851,19 @@ ia64_sn_irtr_intr_disable(nasid_t nasid, int subch, u64 intr)
return (int) rv.v0;
}
/*
* Set up a node as the point of contact for system controller
* environmental event delivery.
*/
static inline int
ia64_sn_sysctl_event_init(nasid_t nasid)
{
struct ia64_sal_retval rv;
SAL_CALL_REENTRANT(rv, SN_SAL_SYSCTL_EVENT, (u64) nasid,
0, 0, 0, 0, 0, 0);
return (int) rv.v0;
}
/**
* ia64_sn_get_fit_compt - read a FIT entry from the PROM header
* @nasid: NASID of node to read
@ -1012,4 +1027,29 @@ ia64_sn_hwperf_op(nasid_t nasid, u64 opcode, u64 a0, u64 a1, u64 a2,
return (int) rv.status;
}
static inline int
ia64_sn_ioif_get_pci_topology(u64 rack, u64 bay, u64 slot, u64 slab,
u64 buf, u64 len)
{
struct ia64_sal_retval rv;
SAL_CALL_NOLOCK(rv, SN_SAL_IOIF_GET_PCI_TOPOLOGY,
rack, bay, slot, slab, buf, len, 0);
return (int) rv.status;
}
/*
* BTE error recovery is implemented in SAL
*/
static inline int
ia64_sn_bte_recovery(nasid_t nasid)
{
struct ia64_sal_retval rv;
rv.status = 0;
SAL_CALL_NOLOCK(rv, SN_SAL_BTE_RECOVER, 0, 0, 0, 0, 0, 0, 0);
if (rv.status == SALRET_NOT_IMPLEMENTED)
return 0;
return (int) rv.status;
}
#endif /* _ASM_IA64_SN_SN_SAL_H */

596
include/asm-ia64/sn/tioca.h Normal file
View file

@ -0,0 +1,596 @@
#ifndef _ASM_IA64_SN_TIO_TIOCA_H
#define _ASM_IA64_SN_TIO_TIOCA_H
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (c) 2003-2005 Silicon Graphics, Inc. All rights reserved.
*/
#define TIOCA_PART_NUM 0xE020
#define TIOCA_MFGR_NUM 0x24
#define TIOCA_REV_A 0x1
/*
* Register layout for TIO:CA. See below for bitmasks for each register.
*/
struct tioca {
uint64_t ca_id; /* 0x000000 */
uint64_t ca_control1; /* 0x000008 */
uint64_t ca_control2; /* 0x000010 */
uint64_t ca_status1; /* 0x000018 */
uint64_t ca_status2; /* 0x000020 */
uint64_t ca_gart_aperature; /* 0x000028 */
uint64_t ca_gfx_detach; /* 0x000030 */
uint64_t ca_inta_dest_addr; /* 0x000038 */
uint64_t ca_intb_dest_addr; /* 0x000040 */
uint64_t ca_err_int_dest_addr; /* 0x000048 */
uint64_t ca_int_status; /* 0x000050 */
uint64_t ca_int_status_alias; /* 0x000058 */
uint64_t ca_mult_error; /* 0x000060 */
uint64_t ca_mult_error_alias; /* 0x000068 */
uint64_t ca_first_error; /* 0x000070 */
uint64_t ca_int_mask; /* 0x000078 */
uint64_t ca_crm_pkterr_type; /* 0x000080 */
uint64_t ca_crm_pkterr_type_alias; /* 0x000088 */
uint64_t ca_crm_ct_error_detail_1; /* 0x000090 */
uint64_t ca_crm_ct_error_detail_2; /* 0x000098 */
uint64_t ca_crm_tnumto; /* 0x0000A0 */
uint64_t ca_gart_err; /* 0x0000A8 */
uint64_t ca_pcierr_type; /* 0x0000B0 */
uint64_t ca_pcierr_addr; /* 0x0000B8 */
uint64_t ca_pad_0000C0[3]; /* 0x0000{C0..D0} */
uint64_t ca_pci_rd_buf_flush; /* 0x0000D8 */
uint64_t ca_pci_dma_addr_extn; /* 0x0000E0 */
uint64_t ca_agp_dma_addr_extn; /* 0x0000E8 */
uint64_t ca_force_inta; /* 0x0000F0 */
uint64_t ca_force_intb; /* 0x0000F8 */
uint64_t ca_debug_vector_sel; /* 0x000100 */
uint64_t ca_debug_mux_core_sel; /* 0x000108 */
uint64_t ca_debug_mux_pci_sel; /* 0x000110 */
uint64_t ca_debug_domain_sel; /* 0x000118 */
uint64_t ca_pad_000120[28]; /* 0x0001{20..F8} */
uint64_t ca_gart_ptr_table; /* 0x200 */
uint64_t ca_gart_tlb_addr[8]; /* 0x2{08..40} */
};
/*
* Mask/shift definitions for TIO:CA registers. The convention here is
* to mainly use the names as they appear in the "TIO AEGIS Programmers'
* Reference" with a CA_ prefix added. Some exceptions were made to fix
* duplicate field names or to generalize fields that are common to
* different registers (ca_debug_mux_core_sel and ca_debug_mux_pci_sel for
* example).
*
* Fields consisting of a single bit have a single #define have a single
* macro declaration to mask the bit. Fields consisting of multiple bits
* have two declarations: one to mask the proper bits in a register, and
* a second with the suffix "_SHFT" to identify how far the mask needs to
* be shifted right to get its base value.
*/
/* ==== ca_control1 */
#define CA_SYS_BIG_END (1ull << 0)
#define CA_DMA_AGP_SWAP (1ull << 1)
#define CA_DMA_PCI_SWAP (1ull << 2)
#define CA_PIO_IO_SWAP (1ull << 3)
#define CA_PIO_MEM_SWAP (1ull << 4)
#define CA_GFX_WR_SWAP (1ull << 5)
#define CA_AGP_FW_ENABLE (1ull << 6)
#define CA_AGP_CAL_CYCLE (0x7ull << 7)
#define CA_AGP_CAL_CYCLE_SHFT 7
#define CA_AGP_CAL_PRSCL_BYP (1ull << 10)
#define CA_AGP_INIT_CAL_ENB (1ull << 11)
#define CA_INJ_ADDR_PERR (1ull << 12)
#define CA_INJ_DATA_PERR (1ull << 13)
/* bits 15:14 unused */
#define CA_PCIM_IO_NBE_AD (0x7ull << 16)
#define CA_PCIM_IO_NBE_AD_SHFT 16
#define CA_PCIM_FAST_BTB_ENB (1ull << 19)
/* bits 23:20 unused */
#define CA_PIO_ADDR_OFFSET (0xffull << 24)
#define CA_PIO_ADDR_OFFSET_SHFT 24
/* bits 35:32 unused */
#define CA_AGPDMA_OP_COMBDELAY (0x1full << 36)
#define CA_AGPDMA_OP_COMBDELAY_SHFT 36
/* bit 41 unused */
#define CA_AGPDMA_OP_ENB_COMBDELAY (1ull << 42)
#define CA_PCI_INT_LPCNT (0xffull << 44)
#define CA_PCI_INT_LPCNT_SHFT 44
/* bits 63:52 unused */
/* ==== ca_control2 */
#define CA_AGP_LATENCY_TO (0xffull << 0)
#define CA_AGP_LATENCY_TO_SHFT 0
#define CA_PCI_LATENCY_TO (0xffull << 8)
#define CA_PCI_LATENCY_TO_SHFT 8
#define CA_PCI_MAX_RETRY (0x3ffull << 16)
#define CA_PCI_MAX_RETRY_SHFT 16
/* bits 27:26 unused */
#define CA_RT_INT_EN (0x3ull << 28)
#define CA_RT_INT_EN_SHFT 28
#define CA_MSI_INT_ENB (1ull << 30)
#define CA_PCI_ARB_ERR_ENB (1ull << 31)
#define CA_GART_MEM_PARAM (0x3ull << 32)
#define CA_GART_MEM_PARAM_SHFT 32
#define CA_GART_RD_PREFETCH_ENB (1ull << 34)
#define CA_GART_WR_PREFETCH_ENB (1ull << 35)
#define CA_GART_FLUSH_TLB (1ull << 36)
/* bits 39:37 unused */
#define CA_CRM_TNUMTO_PERIOD (0x1fffull << 40)
#define CA_CRM_TNUMTO_PERIOD_SHFT 40
/* bits 55:53 unused */
#define CA_CRM_TNUMTO_ENB (1ull << 56)
#define CA_CRM_PRESCALER_BYP (1ull << 57)
/* bits 59:58 unused */
#define CA_CRM_MAX_CREDIT (0x7ull << 60)
#define CA_CRM_MAX_CREDIT_SHFT 60
/* bit 63 unused */
/* ==== ca_status1 */
#define CA_CORELET_ID (0x3ull << 0)
#define CA_CORELET_ID_SHFT 0
#define CA_INTA_N (1ull << 2)
#define CA_INTB_N (1ull << 3)
#define CA_CRM_CREDIT_AVAIL (0x7ull << 4)
#define CA_CRM_CREDIT_AVAIL_SHFT 4
/* bit 7 unused */
#define CA_CRM_SPACE_AVAIL (0x7full << 8)
#define CA_CRM_SPACE_AVAIL_SHFT 8
/* bit 15 unused */
#define CA_GART_TLB_VAL (0xffull << 16)
#define CA_GART_TLB_VAL_SHFT 16
/* bits 63:24 unused */
/* ==== ca_status2 */
#define CA_GFX_CREDIT_AVAIL (0xffull << 0)
#define CA_GFX_CREDIT_AVAIL_SHFT 0
#define CA_GFX_OPQ_AVAIL (0xffull << 8)
#define CA_GFX_OPQ_AVAIL_SHFT 8
#define CA_GFX_WRBUFF_AVAIL (0xffull << 16)
#define CA_GFX_WRBUFF_AVAIL_SHFT 16
#define CA_ADMA_OPQ_AVAIL (0xffull << 24)
#define CA_ADMA_OPQ_AVAIL_SHFT 24
#define CA_ADMA_WRBUFF_AVAIL (0xffull << 32)
#define CA_ADMA_WRBUFF_AVAIL_SHFT 32
#define CA_ADMA_RDBUFF_AVAIL (0x7full << 40)
#define CA_ADMA_RDBUFF_AVAIL_SHFT 40
#define CA_PCI_PIO_OP_STAT (1ull << 47)
#define CA_PDMA_OPQ_AVAIL (0xfull << 48)
#define CA_PDMA_OPQ_AVAIL_SHFT 48
#define CA_PDMA_WRBUFF_AVAIL (0xfull << 52)
#define CA_PDMA_WRBUFF_AVAIL_SHFT 52
#define CA_PDMA_RDBUFF_AVAIL (0x3ull << 56)
#define CA_PDMA_RDBUFF_AVAIL_SHFT 56
/* bits 63:58 unused */
/* ==== ca_gart_aperature */
#define CA_GART_AP_ENB_AGP (1ull << 0)
#define CA_GART_PAGE_SIZE (1ull << 1)
#define CA_GART_AP_ENB_PCI (1ull << 2)
/* bits 11:3 unused */
#define CA_GART_AP_SIZE (0x3ffull << 12)
#define CA_GART_AP_SIZE_SHFT 12
#define CA_GART_AP_BASE (0x3ffffffffffull << 22)
#define CA_GART_AP_BASE_SHFT 22
/* ==== ca_inta_dest_addr
==== ca_intb_dest_addr
==== ca_err_int_dest_addr */
/* bits 2:0 unused */
#define CA_INT_DEST_ADDR (0x7ffffffffffffull << 3)
#define CA_INT_DEST_ADDR_SHFT 3
/* bits 55:54 unused */
#define CA_INT_DEST_VECT (0xffull << 56)
#define CA_INT_DEST_VECT_SHFT 56
/* ==== ca_int_status */
/* ==== ca_int_status_alias */
/* ==== ca_mult_error */
/* ==== ca_mult_error_alias */
/* ==== ca_first_error */
/* ==== ca_int_mask */
#define CA_PCI_ERR (1ull << 0)
/* bits 3:1 unused */
#define CA_GART_FETCH_ERR (1ull << 4)
#define CA_GFX_WR_OVFLW (1ull << 5)
#define CA_PIO_REQ_OVFLW (1ull << 6)
#define CA_CRM_PKTERR (1ull << 7)
#define CA_CRM_DVERR (1ull << 8)
#define CA_TNUMTO (1ull << 9)
#define CA_CXM_RSP_CRED_OVFLW (1ull << 10)
#define CA_CXM_REQ_CRED_OVFLW (1ull << 11)
#define CA_PIO_INVALID_ADDR (1ull << 12)
#define CA_PCI_ARB_TO (1ull << 13)
#define CA_AGP_REQ_OFLOW (1ull << 14)
#define CA_SBA_TYPE1_ERR (1ull << 15)
/* bit 16 unused */
#define CA_INTA (1ull << 17)
#define CA_INTB (1ull << 18)
#define CA_MULT_INTA (1ull << 19)
#define CA_MULT_INTB (1ull << 20)
#define CA_GFX_CREDIT_OVFLW (1ull << 21)
/* bits 63:22 unused */
/* ==== ca_crm_pkterr_type */
/* ==== ca_crm_pkterr_type_alias */
#define CA_CRM_PKTERR_SBERR_HDR (1ull << 0)
#define CA_CRM_PKTERR_DIDN (1ull << 1)
#define CA_CRM_PKTERR_PACTYPE (1ull << 2)
#define CA_CRM_PKTERR_INV_TNUM (1ull << 3)
#define CA_CRM_PKTERR_ADDR_RNG (1ull << 4)
#define CA_CRM_PKTERR_ADDR_ALGN (1ull << 5)
#define CA_CRM_PKTERR_HDR_PARAM (1ull << 6)
#define CA_CRM_PKTERR_CW_ERR (1ull << 7)
#define CA_CRM_PKTERR_SBERR_NH (1ull << 8)
#define CA_CRM_PKTERR_EARLY_TERM (1ull << 9)
#define CA_CRM_PKTERR_EARLY_TAIL (1ull << 10)
#define CA_CRM_PKTERR_MSSNG_TAIL (1ull << 11)
#define CA_CRM_PKTERR_MSSNG_HDR (1ull << 12)
/* bits 15:13 unused */
#define CA_FIRST_CRM_PKTERR_SBERR_HDR (1ull << 16)
#define CA_FIRST_CRM_PKTERR_DIDN (1ull << 17)
#define CA_FIRST_CRM_PKTERR_PACTYPE (1ull << 18)
#define CA_FIRST_CRM_PKTERR_INV_TNUM (1ull << 19)
#define CA_FIRST_CRM_PKTERR_ADDR_RNG (1ull << 20)
#define CA_FIRST_CRM_PKTERR_ADDR_ALGN (1ull << 21)
#define CA_FIRST_CRM_PKTERR_HDR_PARAM (1ull << 22)
#define CA_FIRST_CRM_PKTERR_CW_ERR (1ull << 23)
#define CA_FIRST_CRM_PKTERR_SBERR_NH (1ull << 24)
#define CA_FIRST_CRM_PKTERR_EARLY_TERM (1ull << 25)
#define CA_FIRST_CRM_PKTERR_EARLY_TAIL (1ull << 26)
#define CA_FIRST_CRM_PKTERR_MSSNG_TAIL (1ull << 27)
#define CA_FIRST_CRM_PKTERR_MSSNG_HDR (1ull << 28)
/* bits 63:29 unused */
/* ==== ca_crm_ct_error_detail_1 */
#define CA_PKT_TYPE (0xfull << 0)
#define CA_PKT_TYPE_SHFT 0
#define CA_SRC_ID (0x3ull << 4)
#define CA_SRC_ID_SHFT 4
#define CA_DATA_SZ (0x3ull << 6)
#define CA_DATA_SZ_SHFT 6
#define CA_TNUM (0xffull << 8)
#define CA_TNUM_SHFT 8
#define CA_DW_DATA_EN (0xffull << 16)
#define CA_DW_DATA_EN_SHFT 16
#define CA_GFX_CRED (0xffull << 24)
#define CA_GFX_CRED_SHFT 24
#define CA_MEM_RD_PARAM (0x3ull << 32)
#define CA_MEM_RD_PARAM_SHFT 32
#define CA_PIO_OP (1ull << 34)
#define CA_CW_ERR (1ull << 35)
/* bits 62:36 unused */
#define CA_VALID (1ull << 63)
/* ==== ca_crm_ct_error_detail_2 */
/* bits 2:0 unused */
#define CA_PKT_ADDR (0x1fffffffffffffull << 3)
#define CA_PKT_ADDR_SHFT 3
/* bits 63:56 unused */
/* ==== ca_crm_tnumto */
#define CA_CRM_TNUMTO_VAL (0xffull << 0)
#define CA_CRM_TNUMTO_VAL_SHFT 0
#define CA_CRM_TNUMTO_WR (1ull << 8)
/* bits 63:9 unused */
/* ==== ca_gart_err */
#define CA_GART_ERR_SOURCE (0x3ull << 0)
#define CA_GART_ERR_SOURCE_SHFT 0
/* bits 3:2 unused */
#define CA_GART_ERR_ADDR (0xfffffffffull << 4)
#define CA_GART_ERR_ADDR_SHFT 4
/* bits 63:40 unused */
/* ==== ca_pcierr_type */
#define CA_PCIERR_DATA (0xffffffffull << 0)
#define CA_PCIERR_DATA_SHFT 0
#define CA_PCIERR_ENB (0xfull << 32)
#define CA_PCIERR_ENB_SHFT 32
#define CA_PCIERR_CMD (0xfull << 36)
#define CA_PCIERR_CMD_SHFT 36
#define CA_PCIERR_A64 (1ull << 40)
#define CA_PCIERR_SLV_SERR (1ull << 41)
#define CA_PCIERR_SLV_WR_PERR (1ull << 42)
#define CA_PCIERR_SLV_RD_PERR (1ull << 43)
#define CA_PCIERR_MST_SERR (1ull << 44)
#define CA_PCIERR_MST_WR_PERR (1ull << 45)
#define CA_PCIERR_MST_RD_PERR (1ull << 46)
#define CA_PCIERR_MST_MABT (1ull << 47)
#define CA_PCIERR_MST_TABT (1ull << 48)
#define CA_PCIERR_MST_RETRY_TOUT (1ull << 49)
#define CA_PCIERR_TYPES \
(CA_PCIERR_A64|CA_PCIERR_SLV_SERR| \
CA_PCIERR_SLV_WR_PERR|CA_PCIERR_SLV_RD_PERR| \
CA_PCIERR_MST_SERR|CA_PCIERR_MST_WR_PERR|CA_PCIERR_MST_RD_PERR| \
CA_PCIERR_MST_MABT|CA_PCIERR_MST_TABT|CA_PCIERR_MST_RETRY_TOUT)
/* bits 63:50 unused */
/* ==== ca_pci_dma_addr_extn */
#define CA_UPPER_NODE_OFFSET (0x3full << 0)
#define CA_UPPER_NODE_OFFSET_SHFT 0
/* bits 7:6 unused */
#define CA_CHIPLET_ID (0x3ull << 8)
#define CA_CHIPLET_ID_SHFT 8
/* bits 11:10 unused */
#define CA_PCI_DMA_NODE_ID (0xffffull << 12)
#define CA_PCI_DMA_NODE_ID_SHFT 12
/* bits 27:26 unused */
#define CA_PCI_DMA_PIO_MEM_TYPE (1ull << 28)
/* bits 63:29 unused */
/* ==== ca_agp_dma_addr_extn */
/* bits 19:0 unused */
#define CA_AGP_DMA_NODE_ID (0xffffull << 20)
#define CA_AGP_DMA_NODE_ID_SHFT 20
/* bits 27:26 unused */
#define CA_AGP_DMA_PIO_MEM_TYPE (1ull << 28)
/* bits 63:29 unused */
/* ==== ca_debug_vector_sel */
#define CA_DEBUG_MN_VSEL (0xfull << 0)
#define CA_DEBUG_MN_VSEL_SHFT 0
#define CA_DEBUG_PP_VSEL (0xfull << 4)
#define CA_DEBUG_PP_VSEL_SHFT 4
#define CA_DEBUG_GW_VSEL (0xfull << 8)
#define CA_DEBUG_GW_VSEL_SHFT 8
#define CA_DEBUG_GT_VSEL (0xfull << 12)
#define CA_DEBUG_GT_VSEL_SHFT 12
#define CA_DEBUG_PD_VSEL (0xfull << 16)
#define CA_DEBUG_PD_VSEL_SHFT 16
#define CA_DEBUG_AD_VSEL (0xfull << 20)
#define CA_DEBUG_AD_VSEL_SHFT 20
#define CA_DEBUG_CX_VSEL (0xfull << 24)
#define CA_DEBUG_CX_VSEL_SHFT 24
#define CA_DEBUG_CR_VSEL (0xfull << 28)
#define CA_DEBUG_CR_VSEL_SHFT 28
#define CA_DEBUG_BA_VSEL (0xfull << 32)
#define CA_DEBUG_BA_VSEL_SHFT 32
#define CA_DEBUG_PE_VSEL (0xfull << 36)
#define CA_DEBUG_PE_VSEL_SHFT 36
#define CA_DEBUG_BO_VSEL (0xfull << 40)
#define CA_DEBUG_BO_VSEL_SHFT 40
#define CA_DEBUG_BI_VSEL (0xfull << 44)
#define CA_DEBUG_BI_VSEL_SHFT 44
#define CA_DEBUG_AS_VSEL (0xfull << 48)
#define CA_DEBUG_AS_VSEL_SHFT 48
#define CA_DEBUG_PS_VSEL (0xfull << 52)
#define CA_DEBUG_PS_VSEL_SHFT 52
#define CA_DEBUG_PM_VSEL (0xfull << 56)
#define CA_DEBUG_PM_VSEL_SHFT 56
/* bits 63:60 unused */
/* ==== ca_debug_mux_core_sel */
/* ==== ca_debug_mux_pci_sel */
#define CA_DEBUG_MSEL0 (0x7ull << 0)
#define CA_DEBUG_MSEL0_SHFT 0
/* bit 3 unused */
#define CA_DEBUG_NSEL0 (0x7ull << 4)
#define CA_DEBUG_NSEL0_SHFT 4
/* bit 7 unused */
#define CA_DEBUG_MSEL1 (0x7ull << 8)
#define CA_DEBUG_MSEL1_SHFT 8
/* bit 11 unused */
#define CA_DEBUG_NSEL1 (0x7ull << 12)
#define CA_DEBUG_NSEL1_SHFT 12
/* bit 15 unused */
#define CA_DEBUG_MSEL2 (0x7ull << 16)
#define CA_DEBUG_MSEL2_SHFT 16
/* bit 19 unused */
#define CA_DEBUG_NSEL2 (0x7ull << 20)
#define CA_DEBUG_NSEL2_SHFT 20
/* bit 23 unused */
#define CA_DEBUG_MSEL3 (0x7ull << 24)
#define CA_DEBUG_MSEL3_SHFT 24
/* bit 27 unused */
#define CA_DEBUG_NSEL3 (0x7ull << 28)
#define CA_DEBUG_NSEL3_SHFT 28
/* bit 31 unused */
#define CA_DEBUG_MSEL4 (0x7ull << 32)
#define CA_DEBUG_MSEL4_SHFT 32
/* bit 35 unused */
#define CA_DEBUG_NSEL4 (0x7ull << 36)
#define CA_DEBUG_NSEL4_SHFT 36
/* bit 39 unused */
#define CA_DEBUG_MSEL5 (0x7ull << 40)
#define CA_DEBUG_MSEL5_SHFT 40
/* bit 43 unused */
#define CA_DEBUG_NSEL5 (0x7ull << 44)
#define CA_DEBUG_NSEL5_SHFT 44
/* bit 47 unused */
#define CA_DEBUG_MSEL6 (0x7ull << 48)
#define CA_DEBUG_MSEL6_SHFT 48
/* bit 51 unused */
#define CA_DEBUG_NSEL6 (0x7ull << 52)
#define CA_DEBUG_NSEL6_SHFT 52
/* bit 55 unused */
#define CA_DEBUG_MSEL7 (0x7ull << 56)
#define CA_DEBUG_MSEL7_SHFT 56
/* bit 59 unused */
#define CA_DEBUG_NSEL7 (0x7ull << 60)
#define CA_DEBUG_NSEL7_SHFT 60
/* bit 63 unused */
/* ==== ca_debug_domain_sel */
#define CA_DEBUG_DOMAIN_L (1ull << 0)
#define CA_DEBUG_DOMAIN_H (1ull << 1)
/* bits 63:2 unused */
/* ==== ca_gart_ptr_table */
#define CA_GART_PTR_VAL (1ull << 0)
/* bits 11:1 unused */
#define CA_GART_PTR_ADDR (0xfffffffffffull << 12)
#define CA_GART_PTR_ADDR_SHFT 12
/* bits 63:56 unused */
/* ==== ca_gart_tlb_addr[0-7] */
#define CA_GART_TLB_ADDR (0xffffffffffffffull << 0)
#define CA_GART_TLB_ADDR_SHFT 0
/* bits 62:56 unused */
#define CA_GART_TLB_ENTRY_VAL (1ull << 63)
/*
* PIO address space ranges for TIO:CA
*/
/* CA internal registers */
#define CA_PIO_ADMIN 0x00000000
#define CA_PIO_ADMIN_LEN 0x00010000
/* GFX Write Buffer - Diagnostics */
#define CA_PIO_GFX 0x00010000
#define CA_PIO_GFX_LEN 0x00010000
/* AGP DMA Write Buffer - Diagnostics */
#define CA_PIO_AGP_DMAWRITE 0x00020000
#define CA_PIO_AGP_DMAWRITE_LEN 0x00010000
/* AGP DMA READ Buffer - Diagnostics */
#define CA_PIO_AGP_DMAREAD 0x00030000
#define CA_PIO_AGP_DMAREAD_LEN 0x00010000
/* PCI Config Type 0 */
#define CA_PIO_PCI_TYPE0_CONFIG 0x01000000
#define CA_PIO_PCI_TYPE0_CONFIG_LEN 0x01000000
/* PCI Config Type 1 */
#define CA_PIO_PCI_TYPE1_CONFIG 0x02000000
#define CA_PIO_PCI_TYPE1_CONFIG_LEN 0x01000000
/* PCI I/O Cycles - mapped to PCI Address 0x00000000-0x04ffffff */
#define CA_PIO_PCI_IO 0x03000000
#define CA_PIO_PCI_IO_LEN 0x05000000
/* PCI MEM Cycles - mapped to PCI with CA_PIO_ADDR_OFFSET of ca_control1 */
/* use Fast Write if enabled and coretalk packet type is a GFX request */
#define CA_PIO_PCI_MEM_OFFSET 0x08000000
#define CA_PIO_PCI_MEM_OFFSET_LEN 0x08000000
/* PCI MEM Cycles - mapped to PCI Address 0x00000000-0xbfffffff */
/* use Fast Write if enabled and coretalk packet type is a GFX request */
#define CA_PIO_PCI_MEM 0x40000000
#define CA_PIO_PCI_MEM_LEN 0xc0000000
/*
* DMA space
*
* The CA aperature (ie. bus address range) mapped by the GART is segmented into
* two parts. The lower portion of the aperature is used for mapping 32 bit
* PCI addresses which are managed by the dma interfaces in this file. The
* upper poprtion of the aperature is used for mapping 48 bit AGP addresses.
* The AGP portion of the aperature is managed by the agpgart_be.c driver
* in drivers/linux/agp. There are ca-specific hooks in that driver to
* manipulate the gart, but management of the AGP portion of the aperature
* is the responsibility of that driver.
*
* CA allows three main types of DMA mapping:
*
* PCI 64-bit Managed by this driver
* PCI 32-bit Managed by this driver
* AGP 48-bit Managed by hooks in the /dev/agpgart driver
*
* All of the above can optionally be remapped through the GART. The following
* table lists the combinations of addressing types and GART remapping that
* is currently supported by the driver (h/w supports all, s/w limits this):
*
* PCI64 PCI32 AGP48
* GART no yes yes
* Direct yes yes no
*
* GART remapping of PCI64 is not done because there is no need to. The
* 64 bit PCI address holds all of the information necessary to target any
* memory in the system.
*
* AGP48 is always mapped through the GART. Management of the AGP48 portion
* of the aperature is the responsibility of code in the agpgart_be driver.
*
* The non-64 bit bus address space will currently be partitioned like this:
*
* 0xffff_ffff_ffff +--------
* | AGP48 direct
* | Space managed by this driver
* CA_AGP_DIRECT_BASE +--------
* | AGP GART mapped (gfx aperature)
* | Space managed by /dev/agpgart driver
* | This range is exposed to the agpgart
* | driver as the "graphics aperature"
* CA_AGP_MAPPED_BASE +-----
* | PCI GART mapped
* | Space managed by this driver
* CA_PCI32_MAPPED_BASE +----
* | PCI32 direct
* | Space managed by this driver
* 0xC000_0000 +--------
* (CA_PCI32_DIRECT_BASE)
*
* The bus address range CA_PCI32_MAPPED_BASE through CA_AGP_DIRECT_BASE
* is what we call the CA aperature. Addresses falling in this range will
* be remapped using the GART.
*
* The bus address range CA_AGP_MAPPED_BASE through CA_AGP_DIRECT_BASE
* is what we call the graphics aperature. This is a subset of the CA
* aperature and is under the control of the agpgart_be driver.
*
* CA_PCI32_MAPPED_BASE, CA_AGP_MAPPED_BASE, and CA_AGP_DIRECT_BASE are
* somewhat arbitrary values. The known constraints on choosing these is:
*
* 1) CA_AGP_DIRECT_BASE-CA_PCI32_MAPPED_BASE+1 (the CA aperature size)
* must be one of the values supported by the ca_gart_aperature register.
* Currently valid values are: 4MB through 4096MB in powers of 2 increments
*
* 2) CA_AGP_DIRECT_BASE-CA_AGP_MAPPED_BASE+1 (the gfx aperature size)
* must be in MB units since that's what the agpgart driver assumes.
*/
/*
* Define Bus DMA ranges. These are configurable (see constraints above)
* and will probably need tuning based on experience.
*/
/*
* 11/24/03
* CA has an addressing glitch w.r.t. PCI direct 32 bit DMA that makes it
* generally unusable. The problem is that for PCI direct 32
* DMA's, all 32 bits of the bus address are used to form the lower 32 bits
* of the coretalk address, and coretalk bits 38:32 come from a register.
* Since only PCI bus addresses 0xC0000000-0xFFFFFFFF (1GB) are available
* for DMA (the rest is allocated to PIO), host node addresses need to be
* such that their lower 32 bits fall in the 0xC0000000-0xffffffff range
* as well. So there can be no PCI32 direct DMA below 3GB!! For this
* reason we set the CA_PCI32_DIRECT_SIZE to 0 which essentially makes
* tioca_dma_direct32() a noop but preserves the code flow should this issue
* be fixed in a respin.
*
* For now, all PCI32 DMA's must be mapped through the GART.
*/
#define CA_PCI32_DIRECT_BASE 0xC0000000UL /* BASE not configurable */
#define CA_PCI32_DIRECT_SIZE 0x00000000UL /* 0 MB */
#define CA_PCI32_MAPPED_BASE 0xC0000000UL
#define CA_PCI32_MAPPED_SIZE 0x40000000UL /* 2GB */
#define CA_AGP_MAPPED_BASE 0x80000000UL
#define CA_AGP_MAPPED_SIZE 0x40000000UL /* 2GB */
#define CA_AGP_DIRECT_BASE 0x40000000UL /* 2GB */
#define CA_AGP_DIRECT_SIZE 0x40000000UL
#define CA_APERATURE_BASE (CA_AGP_MAPPED_BASE)
#define CA_APERATURE_SIZE (CA_AGP_MAPPED_SIZE+CA_PCI32_MAPPED_SIZE)
#endif /* _ASM_IA64_SN_TIO_TIOCA_H */

206
include/asm-ia64/sn/tioca_provider.h Normal file
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@ -0,0 +1,206 @@
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (c) 2003-2005 Silicon Graphics, Inc. All rights reserved.
*/
#ifndef _ASM_IA64_SN_TIO_CA_AGP_PROVIDER_H
#define _ASM_IA64_SN_TIO_CA_AGP_PROVIDER_H
#include <asm/sn/tioca.h>
/*
* WAR enables
* Defines for individual WARs. Each is a bitmask of applicable
* part revision numbers. (1 << 1) == rev A, (1 << 2) == rev B,
* (3 << 1) == (rev A or rev B), etc
*/
#define TIOCA_WAR_ENABLED(pv, tioca_common) \
((1 << tioca_common->ca_rev) & pv)
/* TIO:ICE:FRZ:Freezer loses a PIO data ucred on PIO RD RSP with CW error */
#define PV907908 (1 << 1)
/* ATI config space problems after BIOS execution starts */
#define PV908234 (1 << 1)
/* CA:AGPDMA write request data mismatch with ABC1CL merge */
#define PV895469 (1 << 1)
/* TIO:CA TLB invalidate of written GART entries possibly not occuring in CA*/
#define PV910244 (1 << 1)
struct tioca_dmamap{
struct list_head cad_list; /* headed by ca_list */
dma_addr_t cad_dma_addr; /* Linux dma handle */
uint cad_gart_entry; /* start entry in ca_gart_pagemap */
uint cad_gart_size; /* #entries for this map */
};
/*
* Kernel only fields. Prom may look at this stuff for debugging only.
* Access this structure through the ca_kernel_private ptr.
*/
struct tioca_common ;
struct tioca_kernel {
struct tioca_common *ca_common; /* tioca this belongs to */
struct list_head ca_list; /* list of all ca's */
struct list_head ca_dmamaps;
spinlock_t ca_lock; /* Kernel lock */
cnodeid_t ca_closest_node;
struct list_head *ca_devices; /* bus->devices */
/*
* General GART stuff
*/
uint64_t ca_ap_size; /* size of aperature in bytes */
uint32_t ca_gart_entries; /* # uint64_t entries in gart */
uint32_t ca_ap_pagesize; /* aperature page size in bytes */
uint64_t ca_ap_bus_base; /* bus address of CA aperature */
uint64_t ca_gart_size; /* gart size in bytes */
uint64_t *ca_gart; /* gart table vaddr */
uint64_t ca_gart_coretalk_addr; /* gart coretalk addr */
uint8_t ca_gart_iscoherent; /* used in tioca_tlbflush */
/* PCI GART convenience values */
uint64_t ca_pciap_base; /* pci aperature bus base address */
uint64_t ca_pciap_size; /* pci aperature size (bytes) */
uint64_t ca_pcigart_base; /* gfx GART bus base address */
uint64_t *ca_pcigart; /* gfx GART vm address */
uint32_t ca_pcigart_entries;
uint32_t ca_pcigart_start; /* PCI start index in ca_gart */
void *ca_pcigart_pagemap;
/* AGP GART convenience values */
uint64_t ca_gfxap_base; /* gfx aperature bus base address */
uint64_t ca_gfxap_size; /* gfx aperature size (bytes) */
uint64_t ca_gfxgart_base; /* gfx GART bus base address */
uint64_t *ca_gfxgart; /* gfx GART vm address */
uint32_t ca_gfxgart_entries;
uint32_t ca_gfxgart_start; /* agpgart start index in ca_gart */
};
/*
* Common tioca info shared between kernel and prom
*
* DO NOT CHANGE THIS STRUCT WITHOUT MAKING CORRESPONDING CHANGES
* TO THE PROM VERSION.
*/
struct tioca_common {
struct pcibus_bussoft ca_common; /* common pciio header */
uint32_t ca_rev;
uint32_t ca_closest_nasid;
uint64_t ca_prom_private;
uint64_t ca_kernel_private;
};
/**
* tioca_paddr_to_gart - Convert an SGI coretalk address to a CA GART entry
* @paddr: page address to convert
*
* Convert a system [coretalk] address to a GART entry. GART entries are
* formed using the following:
*
* data = ( (1<<63) | ( (REMAP_NODE_ID << 40) | (MD_CHIPLET_ID << 38) |
* (REMAP_SYS_ADDR) ) >> 12 )
*
* DATA written to 1 GART TABLE Entry in system memory is remapped system
* addr for 1 page
*
* The data is for coretalk address format right shifted 12 bits with a
* valid bit.
*
* GART_TABLE_ENTRY [ 25:0 ] -- REMAP_SYS_ADDRESS[37:12].
* GART_TABLE_ENTRY [ 27:26 ] -- SHUB MD chiplet id.
* GART_TABLE_ENTRY [ 41:28 ] -- REMAP_NODE_ID.
* GART_TABLE_ENTRY [ 63 ] -- Valid Bit
*/
static inline u64
tioca_paddr_to_gart(unsigned long paddr)
{
/*
* We are assuming right now that paddr already has the correct
* format since the address from xtalk_dmaXXX should already have
* NODE_ID, CHIPLET_ID, and SYS_ADDR in the correct locations.
*/
return ((paddr) >> 12) | (1UL << 63);
}
/**
* tioca_physpage_to_gart - Map a host physical page for SGI CA based DMA
* @page_addr: system page address to map
*/
static inline unsigned long
tioca_physpage_to_gart(uint64_t page_addr)
{
uint64_t coretalk_addr;
coretalk_addr = PHYS_TO_TIODMA(page_addr);
if (!coretalk_addr) {
return 0;
}
return tioca_paddr_to_gart(coretalk_addr);
}
/**
* tioca_tlbflush - invalidate cached SGI CA GART TLB entries
* @tioca_kernel: CA context
*
* Invalidate tlb entries for a given CA GART. Main complexity is to account
* for revA bug.
*/
static inline void
tioca_tlbflush(struct tioca_kernel *tioca_kernel)
{
volatile uint64_t tmp;
volatile struct tioca *ca_base;
struct tioca_common *tioca_common;
tioca_common = tioca_kernel->ca_common;
ca_base = (struct tioca *)tioca_common->ca_common.bs_base;
/*
* Explicit flushes not needed if GART is in cached mode
*/
if (tioca_kernel->ca_gart_iscoherent) {
if (TIOCA_WAR_ENABLED(PV910244, tioca_common)) {
/*
* PV910244: RevA CA needs explicit flushes.
* Need to put GART into uncached mode before
* flushing otherwise the explicit flush is ignored.
*
* Alternate WAR would be to leave GART cached and
* touch every CL aligned GART entry.
*/
ca_base->ca_control2 &= ~(CA_GART_MEM_PARAM);
ca_base->ca_control2 |= CA_GART_FLUSH_TLB;
ca_base->ca_control2 |=
(0x2ull << CA_GART_MEM_PARAM_SHFT);
tmp = ca_base->ca_control2;
}
return;
}
/*
* Gart in uncached mode ... need an explicit flush.
*/
ca_base->ca_control2 |= CA_GART_FLUSH_TLB;
tmp = ca_base->ca_control2;
}
extern uint32_t tioca_gart_found;
extern int tioca_init_provider(void);
extern void tioca_fastwrite_enable(struct tioca_kernel *tioca_kern);
#endif /* _ASM_IA64_SN_TIO_CA_AGP_PROVIDER_H */

71
include/asm-ia64/sn/tiocx.h Normal file
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@ -0,0 +1,71 @@
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (c) 2005 Silicon Graphics, Inc. All rights reserved.
*/
#ifndef _ASM_IA64_SN_TIO_TIOCX_H
#define _ASM_IA64_SN_TIO_TIOCX_H
#ifdef __KERNEL__
struct cx_id_s {
unsigned int part_num;
unsigned int mfg_num;
int nasid;
};
struct cx_dev {
struct cx_id_s cx_id;
void *soft; /* driver specific */
struct hubdev_info *hubdev;
struct device dev;
struct cx_drv *driver;
};
struct cx_device_id {
unsigned int part_num;
unsigned int mfg_num;
};
struct cx_drv {
char *name;
const struct cx_device_id *id_table;
struct device_driver driver;
int (*probe) (struct cx_dev * dev, const struct cx_device_id * id);
int (*remove) (struct cx_dev * dev);
};
/* create DMA address by stripping AS bits */
#define TIOCX_DMA_ADDR(a) (uint64_t)((uint64_t)(a) & 0xffffcfffffffffUL)
#define TIOCX_TO_TIOCX_DMA_ADDR(a) (uint64_t)(((uint64_t)(a) & 0xfffffffff) | \
((((uint64_t)(a)) & 0xffffc000000000UL) <<2))
#define TIO_CE_ASIC_PARTNUM 0xce00
#define TIOCX_CORELET 3
/* These are taken from tio_mmr_as.h */
#define TIO_ICE_FRZ_CFG TIO_MMR_ADDR_MOD(0x00000000b0008100UL)
#define TIO_ICE_PMI_TX_CFG TIO_MMR_ADDR_MOD(0x00000000b000b100UL)
#define TIO_ICE_PMI_TX_DYN_CREDIT_STAT_CB3 TIO_MMR_ADDR_MOD(0x00000000b000be18UL)
#define TIO_ICE_PMI_TX_DYN_CREDIT_STAT_CB3_CREDIT_CNT_MASK 0x000000000000000fUL
#define to_cx_dev(n) container_of(n, struct cx_dev, dev)
#define to_cx_driver(drv) container_of(drv, struct cx_drv, driver)
extern struct sn_irq_info *tiocx_irq_alloc(nasid_t, int, int, nasid_t, int);
extern void tiocx_irq_free(struct sn_irq_info *);
extern int cx_device_unregister(struct cx_dev *);
extern int cx_device_register(nasid_t, int, int, struct hubdev_info *);
extern int cx_driver_unregister(struct cx_drv *);
extern int cx_driver_register(struct cx_drv *);
extern uint64_t tiocx_dma_addr(uint64_t addr);
extern uint64_t tiocx_swin_base(int nasid);
extern void tiocx_mmr_store(int nasid, uint64_t offset, uint64_t value);
extern uint64_t tiocx_mmr_load(int nasid, uint64_t offset);
#endif // __KERNEL__
#endif // _ASM_IA64_SN_TIO_TIOCX__

3
include/asm-ia64/sn/types.h
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@ -16,7 +16,8 @@ typedef signed short nasid_t; /* node id in numa-as-id space */
typedef signed char partid_t; /* partition ID type */
typedef unsigned int moduleid_t; /* user-visible module number type */
typedef unsigned int cmoduleid_t; /* kernel compact module id type */
typedef signed char slabid_t;
typedef unsigned char slotid_t; /* slot (blade) within module */
typedef unsigned char slabid_t; /* slab (asic) within slot */
typedef u64 nic_t;
typedef unsigned long iopaddr_t;
typedef unsigned long paddr_t;