nodemask.h
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:10k
- /* $Id$
- *
- * 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) 1992 - 1997, 2000 Silicon Graphics, Inc.
- * Copyright (C) 2000 by Colin Ngam
- */
- #ifndef _ASM_SN_NODEMASK_H
- #define _ASM_SN_NODEMASK_H
- #if defined(__KERNEL__) || defined(_KMEMUSER)
- #include <linux/config.h>
- #if CONFIG_SGI_IP35 || CONFIG_IA64_SGI_SN1 || CONFIG_IA64_GENERIC
- #include <asm/sn/sn1/arch.h> /* needed for MAX_COMPACT_NODES */
- #endif
- #define CNODEMASK_BOOTED_MASK boot_cnodemask
- #define CNODEMASK_BIPW 64
- #if !defined(SN0XXL) && !defined(CONFIG_SGI_IP35) && !defined(CONFIG_IA64_SGI_SN1) && !defined(CONFIG_IA64_GENERIC)
- /* MAXCPUS 128p (64 nodes) or less */
- #define CNODEMASK_SIZE 1
- typedef uint64_t cnodemask_t;
- #define CNODEMASK_WORD(p,w) (p)
- #define CNODEMASK_SET_WORD(p,w,val) (p) = val
- #define CNODEMASK_CLRALL(p) (p) = 0
- #define CNODEMASK_SETALL(p) (p) = ~((cnodemask_t)0)
- #define CNODEMASK_IS_ZERO(p) ((p) == 0)
- #define CNODEMASK_IS_NONZERO(p) ((p) != 0)
- #define CNODEMASK_NOTEQ(p, q) ((p) != (q))
- #define CNODEMASK_EQ(p, q) ((p) == (q))
- #define CNODEMASK_LSB_ISONE(p) ((p) & 0x1ULL)
- #define CNODEMASK_ZERO() ((cnodemask_t)0)
- #define CNODEMASK_CVTB(bit) (1ULL << (bit))
- #define CNODEMASK_SETB(p, bit) ((p) |= 1ULL << (bit))
- #define CNODEMASK_CLRB(p, bit) ((p) &= ~(1ULL << (bit)))
- #define CNODEMASK_TSTB(p, bit) ((p) & (1ULL << (bit)))
- #define CNODEMASK_SETM(p, q) ((p) |= (q))
- #define CNODEMASK_CLRM(p, q) ((p) &= ~(q))
- #define CNODEMASK_ANDM(p, q) ((p) &= (q))
- #define CNODEMASK_TSTM(p, q) ((p) & (q))
- #define CNODEMASK_CPYNOTM(p, q) ((p) = ~(q))
- #define CNODEMASK_CPY(p, q) ((p) = (q))
- #define CNODEMASK_ORNOTM(p, q) ((p) |= ~(q))
- #define CNODEMASK_SHIFTL(p) ((p) <<= 1)
- #define CNODEMASK_SHIFTR(p) ((p) >>= 1)
- #define CNODEMASK_SHIFTL_PTR(p) (*(p) <<= 1)
- #define CNODEMASK_SHIFTR_PTR(p) (*(p) >>= 1)
- /* Atomically set or clear a particular bit */
- #define CNODEMASK_ATOMSET_BIT(p, bit) atomicSetUlong((cnodemask_t *)&(p), (1ULL<<(bit)))
- #define CNODEMASK_ATOMCLR_BIT(p, bit) atomicClearUlong((cnodemask_t *)&(p), (1ULL<<(bit)))
- /* Atomically set or clear a collection of bits */
- #define CNODEMASK_ATOMSET(p, q) atomicSetUlong((cnodemask_t *)&(p), q)
- #define CNODEMASK_ATOMCLR(p, q) atomicClearUlong((cnodemask_t *)&(p), q)
- /* Atomically set or clear a collection of bits, returning the old value */
- #define CNODEMASK_ATOMSET_MASK(__old, p, q) {
- (__old) = atomicSetUlong((cnodemask_t *)&(p), q);
- }
- #define CNODEMASK_ATOMCLR_MASK(__old, p, q) {
- (__old) = atomicClearUlong((cnodemask_t *)&(p),q);
- }
- #define CNODEMASK_FROM_NUMNODES(n) ((~(cnodemask_t)0)>>(CNODEMASK_BIPW-(n)))
- #else /* SN0XXL || SN1 - MAXCPUS > 128 */
- #define CNODEMASK_SIZE (MAX_COMPACT_NODES / CNODEMASK_BIPW)
- typedef struct {
- uint64_t _bits[CNODEMASK_SIZE];
- } cnodemask_t;
- #define CNODEMASK_WORD(p,w)
- ((w >= 0 && w < CNODEMASK_SIZE) ? (p)._bits[(w)] : 0)
- #define CNODEMASK_SET_WORD(p,w,val) {
- if (w >= 0 && w < CNODEMASK_SIZE)
- (p)._bits[(w)] = val;
- }
- #define CNODEMASK_CLRALL(p) {
- int i;
-
- for (i = 0 ; i < CNODEMASK_SIZE ; i++)
- (p)._bits[i] = 0;
- }
- #define CNODEMASK_SETALL(p) {
- int i;
-
- for (i = 0 ; i < CNODEMASK_SIZE ; i++)
- (p)._bits[i] = ~(0);
- }
- #define CNODEMASK_LSB_ISONE(p) ((p)._bits[0] & 0x1ULL)
- #define CNODEMASK_SETM(p,q) {
- int i;
-
- for (i = 0 ; i < CNODEMASK_SIZE ; i++)
- (p)._bits[i] |= ((q)._bits[i]);
- }
- #define CNODEMASK_CLRM(p,q) {
- int i;
-
- for (i = 0 ; i < CNODEMASK_SIZE ; i++)
- (p)._bits[i] &= ~((q)._bits[i]);
- }
- #define CNODEMASK_ANDM(p,q) {
- int i;
-
- for (i = 0 ; i < CNODEMASK_SIZE ; i++)
- (p)._bits[i] &= ((q)._bits[i]);
- }
- #define CNODEMASK_CPY(p, q) {
- int i;
-
- for (i = 0 ; i < CNODEMASK_SIZE ; i++)
- (p)._bits[i] = (q)._bits[i];
- }
- #define CNODEMASK_CPYNOTM(p,q) {
- int i;
-
- for (i = 0 ; i < CNODEMASK_SIZE ; i++)
- (p)._bits[i] = ~((q)._bits[i]);
- }
- #define CNODEMASK_ORNOTM(p,q) {
- int i;
-
- for (i = 0 ; i < CNODEMASK_SIZE ; i++)
- (p)._bits[i] |= ~((q)._bits[i]);
- }
- #define CNODEMASK_INDEX(bit) ((bit) >> 6)
- #define CNODEMASK_SHFT(bit) ((bit) & 0x3f)
- #define CNODEMASK_SETB(p, bit)
- (p)._bits[CNODEMASK_INDEX(bit)] |= (1ULL << CNODEMASK_SHFT(bit))
- #define CNODEMASK_CLRB(p, bit)
- (p)._bits[CNODEMASK_INDEX(bit)] &= ~(1ULL << CNODEMASK_SHFT(bit))
- #define CNODEMASK_TSTB(p, bit)
- ((p)._bits[CNODEMASK_INDEX(bit)] & (1ULL << CNODEMASK_SHFT(bit)))
- /** Probably should add atomic update for entire cnodemask_t struct **/
- /* Atomically set or clear a particular bit */
- #define CNODEMASK_ATOMSET_BIT(p, bit)
- (atomicSetUlong((unsigned long *)&(p)._bits[CNODEMASK_INDEX(bit)], (1ULL << CNODEMASK_SHFT(bit))));
- #define CNODEMASK_ATOMCLR_BIT(__old, p, bit)
- (atomicClearUlong((unsigned long *)&(p)._bits[CNODEMASK_INDEX(bit)], (1ULL << CNODEMASK_SHFT(bit))));
- /* Atomically set or clear a collection of bits */
- #define CNODEMASK_ATOMSET(p, q) {
- int i;
-
- for (i = 0 ; i < CNODEMASK_SIZE ; i++) {
- atomicSetUlong((unsigned long *)&(p)._bits[i], (q)._bits[i]);
- }
- }
- #define CNODEMASK_ATOMCLR(p, q) {
- int i;
-
- for (i = 0 ; i < CNODEMASK_SIZE ; i++) {
- atomicClearUlong((unsigned long *)&(p)._bits[i], (q)._bits[i]);
- }
- }
- /* Atomically set or clear a collection of bits, returning the old value */
- #define CNODEMASK_ATOMSET_MASK(__old, p, q) {
- int i;
-
- for (i = 0 ; i < CNODEMASK_SIZE ; i++) {
- (__old)._bits[i] =
- atomicSetUlong((unsigned long *)&(p)._bits[i], (q)._bits[i]);
- }
- }
- #define CNODEMASK_ATOMCLR_MASK(__old, p, q) {
- int i;
-
- for (i = 0 ; i < CNODEMASK_SIZE ; i++) {
- (__old)._bits[i] =
- atomicClearUlong((unsigned long *)&(p)._bits[i], (q)._bits[i]);
- }
- }
- __inline static cnodemask_t CNODEMASK_CVTB(int bit)
- {
- cnodemask_t __tmp;
- CNODEMASK_CLRALL(__tmp);
- CNODEMASK_SETB(__tmp,bit);
- return(__tmp);
- }
- __inline static cnodemask_t CNODEMASK_ZERO(void)
- {
- cnodemask_t __tmp;
- CNODEMASK_CLRALL(__tmp);
- return(__tmp);
- }
- __inline static int CNODEMASK_IS_ZERO (cnodemask_t p)
- {
- int i;
- for (i = 0 ; i < CNODEMASK_SIZE ; i++)
- if (p._bits[i] != 0)
- return 0;
- return 1;
- }
- __inline static int CNODEMASK_IS_NONZERO (cnodemask_t p)
- {
- int i;
- for (i = 0 ; i < CNODEMASK_SIZE ; i++)
- if (p._bits[i] != 0)
- return 1;
- return 0;
- }
- __inline static int CNODEMASK_NOTEQ (cnodemask_t p, cnodemask_t q)
- {
- int i;
- for (i = 0 ; i < CNODEMASK_SIZE ; i++)
- if (p._bits[i] != q._bits[i])
- return 1;
- return 0;
- }
- __inline static int CNODEMASK_EQ (cnodemask_t p, cnodemask_t q)
- {
- int i;
- for (i = 0 ; i < CNODEMASK_SIZE ; i++)
- if (p._bits[i] != q._bits[i])
- return 0;
- return 1;
- }
- __inline static int CNODEMASK_TSTM (cnodemask_t p, cnodemask_t q)
- {
- int i;
- for (i = 0 ; i < CNODEMASK_SIZE ; i++)
- if (p._bits[i] & q._bits[i])
- return 1;
- return 0;
- }
- __inline static void CNODEMASK_SHIFTL_PTR (cnodemask_t *p)
- {
- int i;
- uint64_t upper;
- /*
- * shift words starting with the last word
- * of the vector and work backward to the first
- * word updating the low order bits with the
- * high order bit of the prev word.
- */
- for (i=(CNODEMASK_SIZE-1); i > 0; --i) {
- upper = (p->_bits[i-1] & (1ULL<<(CNODEMASK_BIPW-1))) ? 1 : 0;
- p->_bits[i] <<= 1;
- p->_bits[i] |= upper;
- }
- p->_bits[i] <<= 1;
- }
- __inline static void CNODEMASK_SHIFTR_PTR (cnodemask_t *p)
- {
- int i;
- uint64_t lower;
- /*
- * shift words starting with the first word
- * of the vector and work forward to the last
- * word updating the high order bit with the
- * low order bit of the next word.
- */
- for (i=0; i < (CNODEMASK_SIZE-2); ++i) {
- lower = (p->_bits[i+1] & (0x1)) ? 1 : 0;
- p->_bits[i] >>= 1;
- p->_bits[i] |= (lower<<((CNODEMASK_BIPW-1)));
- }
- p->_bits[i] >>= 1;
- }
- __inline static cnodemask_t CNODEMASK_FROM_NUMNODES(int n)
- {
- cnodemask_t __tmp;
- int i;
- CNODEMASK_CLRALL(__tmp);
- for (i=0; i<n; i++) {
- CNODEMASK_SETB(__tmp, i);
- }
- return(__tmp);
- }
- #endif /* SN0XXL || SN1 */
- extern cnodemask_t boot_cnodemask;
- #endif /* __KERNEL__ || _KMEMUSER */
- #endif /* _ASM_SN_NODEMASK_H */