Merge branch 'drm-reorg' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...

[pandora-kernel.git] / include / linux / cpumask.h

diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
index 7047f58..c24875b 100644 (file)
--- a/include/linux/cpumask.h
+++ b/include/linux/cpumask.h
@@ -14,6 +14,8 @@
  * bitmap_scnlistprintf() and bitmap_parselist(), also in bitmap.c.
  * For details of cpu_remap(), see bitmap_bitremap in lib/bitmap.c
  * For details of cpus_remap(), see bitmap_remap in lib/bitmap.c.
+ * For details of cpus_onto(), see bitmap_onto in lib/bitmap.c.
+ * For details of cpus_fold(), see bitmap_fold in lib/bitmap.c.
  *
  * The available cpumask operations are:
  *
@@ -53,7 +55,9 @@
  * int cpulist_scnprintf(buf, len, mask) Format cpumask as list for printing
  * int cpulist_parse(buf, map)         Parse ascii string as cpulist
  * int cpu_remap(oldbit, old, new)     newbit = map(old, new)(oldbit)
- * int cpus_remap(dst, src, old, new)  *dst = map(old, new)(src)
+ * void cpus_remap(dst, src, old, new) *dst = map(old, new)(src)
+ * void cpus_onto(dst, orig, relmap)   *dst = orig relative to relmap
+ * void cpus_fold(dst, orig, sz)       dst bits = orig bits mod sz
  *
  * for_each_cpu_mask(cpu, mask)                for-loop cpu over mask
  *
@@ -222,8 +226,13 @@ int __next_cpu(int n, const cpumask_t *srcp);
 #define next_cpu(n, src)       ({ (void)(src); 1; })
 #endif
 
+#ifdef CONFIG_HAVE_CPUMASK_OF_CPU_MAP
+extern cpumask_t *cpumask_of_cpu_map;
+#define cpumask_of_cpu(cpu)    (cpumask_of_cpu_map[cpu])
+
+#else
 #define cpumask_of_cpu(cpu)                                            \
-({                                                                     \
+(*({                                                                   \
        typeof(_unused_cpumask_arg_) m;                                 \
        if (sizeof(m) == sizeof(unsigned long)) {                       \
                m.bits[0] = 1UL<<(cpu);                                 \
@@ -231,8 +240,9 @@ int __next_cpu(int n, const cpumask_t *srcp);
                cpus_clear(m);                                          \
                cpu_set((cpu), m);                                      \
        }                                                               \
-       m;                                                              \
-})
+       &m;                                                             \
+}))
+#endif
 
 #define CPU_MASK_LAST_WORD BITMAP_LAST_WORD_MASK(NR_CPUS)
 
@@ -243,6 +253,8 @@ int __next_cpu(int n, const cpumask_t *srcp);
        [BITS_TO_LONGS(NR_CPUS)-1] = CPU_MASK_LAST_WORD                 \
 } }
 
+#define CPU_MASK_ALL_PTR       (&CPU_MASK_ALL)
+
 #else
 
 #define CPU_MASK_ALL                                                   \
@@ -251,6 +263,10 @@ int __next_cpu(int n, const cpumask_t *srcp);
        [BITS_TO_LONGS(NR_CPUS)-1] = CPU_MASK_LAST_WORD                 \
 } }
 
+/* cpu_mask_all is in init/main.c */
+extern cpumask_t cpu_mask_all;
+#define CPU_MASK_ALL_PTR       (&cpu_mask_all)
+
 #endif
 
 #define CPU_MASK_NONE                                                  \
@@ -311,6 +327,22 @@ static inline void __cpus_remap(cpumask_t *dstp, const cpumask_t *srcp,
        bitmap_remap(dstp->bits, srcp->bits, oldp->bits, newp->bits, nbits);
 }
 
+#define cpus_onto(dst, orig, relmap) \
+               __cpus_onto(&(dst), &(orig), &(relmap), NR_CPUS)
+static inline void __cpus_onto(cpumask_t *dstp, const cpumask_t *origp,
+               const cpumask_t *relmapp, int nbits)
+{
+       bitmap_onto(dstp->bits, origp->bits, relmapp->bits, nbits);
+}
+
+#define cpus_fold(dst, orig, sz) \
+               __cpus_fold(&(dst), &(orig), sz, NR_CPUS)
+static inline void __cpus_fold(cpumask_t *dstp, const cpumask_t *origp,
+               int sz, int nbits)
+{
+       bitmap_fold(dstp->bits, origp->bits, sz, nbits);
+}
+
 #if NR_CPUS > 1
 #define for_each_cpu_mask(cpu, mask)           \
        for ((cpu) = first_cpu(mask);           \
@@ -321,6 +353,10 @@ static inline void __cpus_remap(cpumask_t *dstp, const cpumask_t *srcp,
        for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask)
 #endif /* NR_CPUS */
 
+#define next_cpu_nr(n, src)            next_cpu(n, src)
+#define cpus_weight_nr(cpumask)                cpus_weight(cpumask)
+#define for_each_cpu_mask_nr(cpu, mask)        for_each_cpu_mask(cpu, mask)
+
 /*
  * The following particular system cpumasks and operations manage
  * possible, present and online cpus.  Each of them is a fixed size