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sgi-xp: use standard bitops macros and functions

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Change sgi-xp to use the standard bitops macros and functions instead of
trying to invent its own mechanism.

Signed-off-by: Dean Nelson <dcn@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Dean Nelson 2008-07-29 22:34:14 -07:00 committed by Linus Torvalds
parent ea57f80c8c
commit 04de741885
4 changed files with 76 additions and 86 deletions
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3
drivers/misc/sgi-xp/xp.h
View File

@ -21,9 +21,6 @@
#include <asm/sn/arch.h> #include <asm/sn/arch.h>
#endif #endif
/* ??? Add this #define to some linux header file some day? */
#define BYTES_PER_WORD sizeof(void *)
#ifdef USE_DBUG_ON #ifdef USE_DBUG_ON
#define DBUG_ON(condition) BUG_ON(condition) #define DBUG_ON(condition) BUG_ON(condition)
#else #else

43
drivers/misc/sgi-xp/xpc.h
View File

@ -35,23 +35,7 @@
#define XPC_VERSION_MAJOR(_v) ((_v) >> 4) #define XPC_VERSION_MAJOR(_v) ((_v) >> 4)
#define XPC_VERSION_MINOR(_v) ((_v) & 0xf) #define XPC_VERSION_MINOR(_v) ((_v) & 0xf)
/* /* define frequency of the heartbeat and frequency how often it's checked */
* The next macros define word or bit representations for given
* C-brick nasid in either the SAL provided bit array representing
* nasids in the partition/machine or the array of amo structures used
* for inter-partition initiation communications.
*
* For SN2 machines, C-Bricks are alway even numbered NASIDs. As
* such, some space will be saved by insisting that nasid information
* passed from SAL always be packed for C-Bricks and the
* cross-partition interrupts use the same packing scheme.
*/
#define XPC_NASID_W_INDEX(_n) (((_n) / 64) / 2)
#define XPC_NASID_B_INDEX(_n) (((_n) / 2) & (64 - 1))
#define XPC_NASID_IN_ARRAY(_n, _p) ((_p)[XPC_NASID_W_INDEX(_n)] & \
(1UL << XPC_NASID_B_INDEX(_n)))
#define XPC_NASID_FROM_W_B(_w, _b) (((_w) * 64 + (_b)) * 2)
#define XPC_HB_DEFAULT_INTERVAL 5 /* incr HB every x secs */ #define XPC_HB_DEFAULT_INTERVAL 5 /* incr HB every x secs */
#define XPC_HB_CHECK_DEFAULT_INTERVAL 20 /* check HB every x secs */ #define XPC_HB_CHECK_DEFAULT_INTERVAL 20 /* check HB every x secs */
@ -86,11 +70,13 @@
* the actual nasids in the entire machine (mach_nasids). We're only * the actual nasids in the entire machine (mach_nasids). We're only
* interested in the even numbered nasids (which contain the processors * interested in the even numbered nasids (which contain the processors
* and/or memory), so we only need half as many bits to represent the * and/or memory), so we only need half as many bits to represent the
* nasids. The part_nasids mask is located starting at the first cacheline * nasids. When mapping nasid to bit in a mask (or bit to nasid) be sure
* following the reserved page header. The mach_nasids mask follows right * to either divide or multiply by 2. The part_nasids mask is located
* after the part_nasids mask. The size in bytes of each mask is reflected * starting at the first cacheline following the reserved page header. The
* by the reserved page header field 'SAL_nasids_size'. (Local partition's * mach_nasids mask follows right after the part_nasids mask. The size in
* mask pointers are xpc_part_nasids and xpc_mach_nasids.) * bytes of each mask is reflected by the reserved page header field
* 'SAL_nasids_size'. (Local partition's mask pointers are xpc_part_nasids
* and xpc_mach_nasids.)
* *
* vars (ia64-sn2 only) * vars (ia64-sn2 only)
* vars part (ia64-sn2 only) * vars part (ia64-sn2 only)
@ -194,10 +180,11 @@ struct xpc_vars_part_sn2 {
#define XPC_RP_VARS_SIZE L1_CACHE_ALIGN(sizeof(struct xpc_vars_sn2)) #define XPC_RP_VARS_SIZE L1_CACHE_ALIGN(sizeof(struct xpc_vars_sn2))
#define XPC_RP_PART_NASIDS(_rp) ((u64 *)((u8 *)(_rp) + XPC_RP_HEADER_SIZE)) #define XPC_RP_PART_NASIDS(_rp) ((u64 *)((u8 *)(_rp) + XPC_RP_HEADER_SIZE))
#define XPC_RP_MACH_NASIDS(_rp) (XPC_RP_PART_NASIDS(_rp) + xpc_nasid_mask_words) #define XPC_RP_MACH_NASIDS(_rp) (XPC_RP_PART_NASIDS(_rp) + \
xpc_nasid_mask_nlongs)
#define XPC_RP_VARS(_rp) ((struct xpc_vars_sn2 *) \ #define XPC_RP_VARS(_rp) ((struct xpc_vars_sn2 *) \
(XPC_RP_MACH_NASIDS(_rp) + \ (XPC_RP_MACH_NASIDS(_rp) + \
xpc_nasid_mask_words)) xpc_nasid_mask_nlongs))
/* /*
* Functions registered by add_timer() or called by kernel_thread() only * Functions registered by add_timer() or called by kernel_thread() only
@ -695,9 +682,9 @@ extern void xpc_exit_uv(void);
/* found in xpc_partition.c */ /* found in xpc_partition.c */
extern int xpc_exiting; extern int xpc_exiting;
extern int xpc_nasid_mask_words; extern int xpc_nasid_mask_nlongs;
extern struct xpc_rsvd_page *xpc_rsvd_page; extern struct xpc_rsvd_page *xpc_rsvd_page;
extern u64 *xpc_mach_nasids; extern unsigned long *xpc_mach_nasids;
extern struct xpc_partition *xpc_partitions; extern struct xpc_partition *xpc_partitions;
extern void *xpc_kmalloc_cacheline_aligned(size_t, gfp_t, void **); extern void *xpc_kmalloc_cacheline_aligned(size_t, gfp_t, void **);
extern struct xpc_rsvd_page *xpc_setup_rsvd_page(void); extern struct xpc_rsvd_page *xpc_setup_rsvd_page(void);
@ -706,8 +693,8 @@ extern int xpc_partition_disengaged(struct xpc_partition *);
extern enum xp_retval xpc_mark_partition_active(struct xpc_partition *); extern enum xp_retval xpc_mark_partition_active(struct xpc_partition *);
extern void xpc_mark_partition_inactive(struct xpc_partition *); extern void xpc_mark_partition_inactive(struct xpc_partition *);
extern void xpc_discovery(void); extern void xpc_discovery(void);
extern enum xp_retval xpc_get_remote_rp(int, u64 *, struct xpc_rsvd_page *, extern enum xp_retval xpc_get_remote_rp(int, unsigned long *,
u64 *); struct xpc_rsvd_page *, u64 *);
extern void xpc_deactivate_partition(const int, struct xpc_partition *, extern void xpc_deactivate_partition(const int, struct xpc_partition *,
enum xp_retval); enum xp_retval);
extern enum xp_retval xpc_initiate_partid_to_nasids(short, void *); extern enum xp_retval xpc_initiate_partid_to_nasids(short, void *);

43
drivers/misc/sgi-xp/xpc_partition.c
View File

@ -31,11 +31,11 @@ int xpc_exiting;
/* this partition's reserved page pointers */ /* this partition's reserved page pointers */
struct xpc_rsvd_page *xpc_rsvd_page; struct xpc_rsvd_page *xpc_rsvd_page;
static u64 *xpc_part_nasids; static unsigned long *xpc_part_nasids;
u64 *xpc_mach_nasids; unsigned long *xpc_mach_nasids;
static int xpc_sizeof_nasid_mask; /* actual size in bytes of nasid mask */ static int xpc_nasid_mask_nbytes; /* #of bytes in nasid mask */
int xpc_nasid_mask_words; /* actual size in words of nasid mask */ int xpc_nasid_mask_nlongs; /* #of longs in nasid mask */
struct xpc_partition *xpc_partitions; struct xpc_partition *xpc_partitions;
@ -167,9 +167,9 @@ xpc_setup_rsvd_page(void)
/* SAL_version 1 didn't set the nasids_size field */ /* SAL_version 1 didn't set the nasids_size field */
rp->SAL_nasids_size = 128; rp->SAL_nasids_size = 128;
} }
xpc_sizeof_nasid_mask = rp->SAL_nasids_size; xpc_nasid_mask_nbytes = rp->SAL_nasids_size;
xpc_nasid_mask_words = DIV_ROUND_UP(xpc_sizeof_nasid_mask, xpc_nasid_mask_nlongs = BITS_TO_LONGS(rp->SAL_nasids_size *
BYTES_PER_WORD); BITS_PER_BYTE);
/* setup the pointers to the various items in the reserved page */ /* setup the pointers to the various items in the reserved page */
xpc_part_nasids = XPC_RP_PART_NASIDS(rp); xpc_part_nasids = XPC_RP_PART_NASIDS(rp);
@ -199,10 +199,10 @@ xpc_setup_rsvd_page(void)
* part_nasids mask. * part_nasids mask.
*/ */
enum xp_retval enum xp_retval
xpc_get_remote_rp(int nasid, u64 *discovered_nasids, xpc_get_remote_rp(int nasid, unsigned long *discovered_nasids,
struct xpc_rsvd_page *remote_rp, u64 *remote_rp_pa) struct xpc_rsvd_page *remote_rp, u64 *remote_rp_pa)
{ {
int i; int l;
enum xp_retval ret; enum xp_retval ret;
/* get the reserved page's physical address */ /* get the reserved page's physical address */
@ -213,15 +213,16 @@ xpc_get_remote_rp(int nasid, u64 *discovered_nasids,
/* pull over the reserved page header and part_nasids mask */ /* pull over the reserved page header and part_nasids mask */
ret = xp_remote_memcpy(remote_rp, (void *)*remote_rp_pa, ret = xp_remote_memcpy(remote_rp, (void *)*remote_rp_pa,
XPC_RP_HEADER_SIZE + xpc_sizeof_nasid_mask); XPC_RP_HEADER_SIZE + xpc_nasid_mask_nbytes);
if (ret != xpSuccess) if (ret != xpSuccess)
return ret; return ret;
if (discovered_nasids != NULL) { if (discovered_nasids != NULL) {
u64 *remote_part_nasids = XPC_RP_PART_NASIDS(remote_rp); unsigned long *remote_part_nasids =
XPC_RP_PART_NASIDS(remote_rp);
for (i = 0; i < xpc_nasid_mask_words; i++) for (l = 0; l < xpc_nasid_mask_nlongs; l++)
discovered_nasids[i] |= remote_part_nasids[i]; discovered_nasids[l] |= remote_part_nasids[l];
} }
/* see if the reserved page has been set up by XPC */ /* see if the reserved page has been set up by XPC */
@ -401,16 +402,16 @@ xpc_discovery(void)
int max_regions; int max_regions;
int nasid; int nasid;
struct xpc_rsvd_page *rp; struct xpc_rsvd_page *rp;
u64 *discovered_nasids; unsigned long *discovered_nasids;
enum xp_retval ret; enum xp_retval ret;
remote_rp = xpc_kmalloc_cacheline_aligned(XPC_RP_HEADER_SIZE + remote_rp = xpc_kmalloc_cacheline_aligned(XPC_RP_HEADER_SIZE +
xpc_sizeof_nasid_mask, xpc_nasid_mask_nbytes,
GFP_KERNEL, &remote_rp_base); GFP_KERNEL, &remote_rp_base);
if (remote_rp == NULL) if (remote_rp == NULL)
return; return;
discovered_nasids = kzalloc(sizeof(u64) * xpc_nasid_mask_words, discovered_nasids = kzalloc(sizeof(long) * xpc_nasid_mask_nlongs,
GFP_KERNEL); GFP_KERNEL);
if (discovered_nasids == NULL) { if (discovered_nasids == NULL) {
kfree(remote_rp_base); kfree(remote_rp_base);
@ -453,21 +454,21 @@ xpc_discovery(void)
dev_dbg(xpc_part, "checking nasid %d\n", nasid); dev_dbg(xpc_part, "checking nasid %d\n", nasid);
if (XPC_NASID_IN_ARRAY(nasid, xpc_part_nasids)) { if (test_bit(nasid / 2, xpc_part_nasids)) {
dev_dbg(xpc_part, "PROM indicates Nasid %d is " dev_dbg(xpc_part, "PROM indicates Nasid %d is "
"part of the local partition; skipping " "part of the local partition; skipping "
"region\n", nasid); "region\n", nasid);
break; break;
} }
if (!(XPC_NASID_IN_ARRAY(nasid, xpc_mach_nasids))) { if (!(test_bit(nasid / 2, xpc_mach_nasids))) {
dev_dbg(xpc_part, "PROM indicates Nasid %d was " dev_dbg(xpc_part, "PROM indicates Nasid %d was "
"not on Numa-Link network at reset\n", "not on Numa-Link network at reset\n",
nasid); nasid);
continue; continue;
} }
if (XPC_NASID_IN_ARRAY(nasid, discovered_nasids)) { if (test_bit(nasid / 2, discovered_nasids)) {
dev_dbg(xpc_part, "Nasid %d is part of a " dev_dbg(xpc_part, "Nasid %d is part of a "
"partition which was previously " "partition which was previously "
"discovered\n", nasid); "discovered\n", nasid);
@ -512,10 +513,10 @@ xpc_initiate_partid_to_nasids(short partid, void *nasid_mask)
if (part->remote_rp_pa == 0) if (part->remote_rp_pa == 0)
return xpPartitionDown; return xpPartitionDown;
memset(nasid_mask, 0, xpc_sizeof_nasid_mask); memset(nasid_mask, 0, xpc_nasid_mask_nbytes);
part_nasid_pa = (u64)XPC_RP_PART_NASIDS(part->remote_rp_pa); part_nasid_pa = (u64)XPC_RP_PART_NASIDS(part->remote_rp_pa);
return xp_remote_memcpy(nasid_mask, (void *)part_nasid_pa, return xp_remote_memcpy(nasid_mask, (void *)part_nasid_pa,
xpc_sizeof_nasid_mask); xpc_nasid_mask_nbytes);
} }

73
drivers/misc/sgi-xp/xpc_sn2.c
View File

@ -210,28 +210,26 @@ static void
xpc_send_activate_IRQ_sn2(u64 amos_page_pa, int from_nasid, int to_nasid, xpc_send_activate_IRQ_sn2(u64 amos_page_pa, int from_nasid, int to_nasid,
int to_phys_cpuid) int to_phys_cpuid)
{ {
int w_index = XPC_NASID_W_INDEX(from_nasid);
int b_index = XPC_NASID_B_INDEX(from_nasid);
struct amo *amos = (struct amo *)__va(amos_page_pa + struct amo *amos = (struct amo *)__va(amos_page_pa +
(XPC_ACTIVATE_IRQ_AMOS_SN2 * (XPC_ACTIVATE_IRQ_AMOS_SN2 *
sizeof(struct amo))); sizeof(struct amo)));
(void)xpc_send_IRQ_sn2(&amos[w_index], (1UL << b_index), to_nasid, (void)xpc_send_IRQ_sn2(&amos[BIT_WORD(from_nasid / 2)],
BIT_MASK(from_nasid / 2), to_nasid,
to_phys_cpuid, SGI_XPC_ACTIVATE); to_phys_cpuid, SGI_XPC_ACTIVATE);
} }
static void static void
xpc_send_local_activate_IRQ_sn2(int from_nasid) xpc_send_local_activate_IRQ_sn2(int from_nasid)
{ {
int w_index = XPC_NASID_W_INDEX(from_nasid);
int b_index = XPC_NASID_B_INDEX(from_nasid);
struct amo *amos = (struct amo *)__va(xpc_vars_sn2->amos_page_pa + struct amo *amos = (struct amo *)__va(xpc_vars_sn2->amos_page_pa +
(XPC_ACTIVATE_IRQ_AMOS_SN2 * (XPC_ACTIVATE_IRQ_AMOS_SN2 *
sizeof(struct amo))); sizeof(struct amo)));
/* fake the sending and receipt of an activate IRQ from remote nasid */ /* fake the sending and receipt of an activate IRQ from remote nasid */
FETCHOP_STORE_OP(TO_AMO((u64)&amos[w_index].variable), FETCHOP_OR, FETCHOP_STORE_OP(TO_AMO((u64)&amos[BIT_WORD(from_nasid / 2)].variable),
(1UL << b_index)); FETCHOP_OR, BIT_MASK(from_nasid / 2));
atomic_inc(&xpc_activate_IRQ_rcvd); atomic_inc(&xpc_activate_IRQ_rcvd);
wake_up_interruptible(&xpc_activate_IRQ_wq); wake_up_interruptible(&xpc_activate_IRQ_wq);
} }
@ -439,7 +437,8 @@ xpc_indicate_partition_engaged_sn2(struct xpc_partition *part)
/* set bit corresponding to our partid in remote partition's amo */ /* set bit corresponding to our partid in remote partition's amo */
FETCHOP_STORE_OP(TO_AMO((u64)&amo->variable), FETCHOP_OR, FETCHOP_STORE_OP(TO_AMO((u64)&amo->variable), FETCHOP_OR,
(1UL << sn_partition_id)); BIT(sn_partition_id));
/* /*
* We must always use the nofault function regardless of whether we * We must always use the nofault function regardless of whether we
* are on a Shub 1.1 system or a Shub 1.2 slice 0xc processor. If we * are on a Shub 1.1 system or a Shub 1.2 slice 0xc processor. If we
@ -466,7 +465,8 @@ xpc_indicate_partition_disengaged_sn2(struct xpc_partition *part)
/* clear bit corresponding to our partid in remote partition's amo */ /* clear bit corresponding to our partid in remote partition's amo */
FETCHOP_STORE_OP(TO_AMO((u64)&amo->variable), FETCHOP_AND, FETCHOP_STORE_OP(TO_AMO((u64)&amo->variable), FETCHOP_AND,
~(1UL << sn_partition_id)); ~BIT(sn_partition_id));
/* /*
* We must always use the nofault function regardless of whether we * We must always use the nofault function regardless of whether we
* are on a Shub 1.1 system or a Shub 1.2 slice 0xc processor. If we * are on a Shub 1.1 system or a Shub 1.2 slice 0xc processor. If we
@ -497,7 +497,7 @@ xpc_partition_engaged_sn2(short partid)
/* our partition's amo variable ANDed with partid mask */ /* our partition's amo variable ANDed with partid mask */
return (FETCHOP_LOAD_OP(TO_AMO((u64)&amo->variable), FETCHOP_LOAD) & return (FETCHOP_LOAD_OP(TO_AMO((u64)&amo->variable), FETCHOP_LOAD) &
(1UL << partid)) != 0; BIT(partid)) != 0;
} }
static int static int
@ -518,7 +518,7 @@ xpc_assume_partition_disengaged_sn2(short partid)
/* clear bit(s) based on partid mask in our partition's amo */ /* clear bit(s) based on partid mask in our partition's amo */
FETCHOP_STORE_OP(TO_AMO((u64)&amo->variable), FETCHOP_AND, FETCHOP_STORE_OP(TO_AMO((u64)&amo->variable), FETCHOP_AND,
~(1UL << partid)); ~BIT(partid));
} }
/* original protection values for each node */ /* original protection values for each node */
@ -639,7 +639,7 @@ xpc_rsvd_page_init_sn2(struct xpc_rsvd_page *rp)
xp_max_npartitions); xp_max_npartitions);
/* initialize the activate IRQ related amo variables */ /* initialize the activate IRQ related amo variables */
for (i = 0; i < xpc_nasid_mask_words; i++) for (i = 0; i < xpc_nasid_mask_nlongs; i++)
(void)xpc_init_IRQ_amo_sn2(XPC_ACTIVATE_IRQ_AMOS_SN2 + i); (void)xpc_init_IRQ_amo_sn2(XPC_ACTIVATE_IRQ_AMOS_SN2 + i);
/* initialize the engaged remote partitions related amo variables */ /* initialize the engaged remote partitions related amo variables */
@ -796,7 +796,8 @@ xpc_request_partition_deactivation_sn2(struct xpc_partition *part)
/* set bit corresponding to our partid in remote partition's amo */ /* set bit corresponding to our partid in remote partition's amo */
FETCHOP_STORE_OP(TO_AMO((u64)&amo->variable), FETCHOP_OR, FETCHOP_STORE_OP(TO_AMO((u64)&amo->variable), FETCHOP_OR,
(1UL << sn_partition_id)); BIT(sn_partition_id));
/* /*
* We must always use the nofault function regardless of whether we * We must always use the nofault function regardless of whether we
* are on a Shub 1.1 system or a Shub 1.2 slice 0xc processor. If we * are on a Shub 1.1 system or a Shub 1.2 slice 0xc processor. If we
@ -831,7 +832,8 @@ xpc_cancel_partition_deactivation_request_sn2(struct xpc_partition *part)
/* clear bit corresponding to our partid in remote partition's amo */ /* clear bit corresponding to our partid in remote partition's amo */
FETCHOP_STORE_OP(TO_AMO((u64)&amo->variable), FETCHOP_AND, FETCHOP_STORE_OP(TO_AMO((u64)&amo->variable), FETCHOP_AND,
~(1UL << sn_partition_id)); ~BIT(sn_partition_id));
/* /*
* We must always use the nofault function regardless of whether we * We must always use the nofault function regardless of whether we
* are on a Shub 1.1 system or a Shub 1.2 slice 0xc processor. If we * are on a Shub 1.1 system or a Shub 1.2 slice 0xc processor. If we
@ -853,7 +855,7 @@ xpc_partition_deactivation_requested_sn2(short partid)
/* our partition's amo variable ANDed with partid mask */ /* our partition's amo variable ANDed with partid mask */
return (FETCHOP_LOAD_OP(TO_AMO((u64)&amo->variable), FETCHOP_LOAD) & return (FETCHOP_LOAD_OP(TO_AMO((u64)&amo->variable), FETCHOP_LOAD) &
(1UL << partid)) != 0; BIT(partid)) != 0;
} }
/* /*
@ -1031,28 +1033,31 @@ xpc_identify_activate_IRQ_req_sn2(int nasid)
int int
xpc_identify_activate_IRQ_sender_sn2(void) xpc_identify_activate_IRQ_sender_sn2(void)
{ {
int word, bit; int l;
u64 nasid_mask; int b;
unsigned long nasid_mask_long;
u64 nasid; /* remote nasid */ u64 nasid; /* remote nasid */
int n_IRQs_detected = 0; int n_IRQs_detected = 0;
struct amo *act_amos; struct amo *act_amos;
act_amos = xpc_vars_sn2->amos_page + XPC_ACTIVATE_IRQ_AMOS_SN2; act_amos = xpc_vars_sn2->amos_page + XPC_ACTIVATE_IRQ_AMOS_SN2;
/* scan through act amo variable looking for non-zero entries */ /* scan through activate amo variables looking for non-zero entries */
for (word = 0; word < xpc_nasid_mask_words; word++) { for (l = 0; l < xpc_nasid_mask_nlongs; l++) {
if (xpc_exiting) if (xpc_exiting)
break; break;
nasid_mask = xpc_receive_IRQ_amo_sn2(&act_amos[word]); nasid_mask_long = xpc_receive_IRQ_amo_sn2(&act_amos[l]);
if (nasid_mask == 0) {
/* no IRQs from nasids in this variable */ b = find_first_bit(&nasid_mask_long, BITS_PER_LONG);
if (b >= BITS_PER_LONG) {
/* no IRQs from nasids in this amo variable */
continue; continue;
} }
dev_dbg(xpc_part, "amo[%d] gave back 0x%lx\n", word, dev_dbg(xpc_part, "amo[%d] gave back 0x%lx\n", l,
nasid_mask); nasid_mask_long);
/* /*
* If this nasid has been added to the machine since * If this nasid has been added to the machine since
@ -1060,19 +1065,19 @@ xpc_identify_activate_IRQ_sender_sn2(void)
* remote nasid in our reserved pages machine mask. * remote nasid in our reserved pages machine mask.
* This is used in the event of module reload. * This is used in the event of module reload.
*/ */
xpc_mach_nasids[word] |= nasid_mask; xpc_mach_nasids[l] |= nasid_mask_long;
/* locate the nasid(s) which sent interrupts */ /* locate the nasid(s) which sent interrupts */
for (bit = 0; bit < (8 * sizeof(u64)); bit++) { do {
if (nasid_mask & (1UL << bit)) { n_IRQs_detected++;
n_IRQs_detected++; nasid = (l * BITS_PER_LONG + b) * 2;
nasid = XPC_NASID_FROM_W_B(word, bit); dev_dbg(xpc_part, "interrupt from nasid %ld\n", nasid);
dev_dbg(xpc_part, "interrupt from nasid %ld\n", xpc_identify_activate_IRQ_req_sn2(nasid);
nasid);
xpc_identify_activate_IRQ_req_sn2(nasid); b = find_next_bit(&nasid_mask_long, BITS_PER_LONG,
} b + 1);
} } while (b < BITS_PER_LONG);
} }
return n_IRQs_detected; return n_IRQs_detected;
} }