diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/cpumask.h | 176 | ||||
| -rw-r--r-- | include/linux/iommu.h | 33 | ||||
| -rw-r--r-- | include/linux/smp.h | 2 |
3 files changed, 42 insertions, 169 deletions
diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h index 086549a665e2..27e285b92b5f 100644 --- a/include/linux/cpumask.h +++ b/include/linux/cpumask.h @@ -11,6 +11,7 @@ #include <linux/bitmap.h> #include <linux/bug.h> +/* Don't assign or return these: may not be this big! */ typedef struct cpumask { DECLARE_BITMAP(bits, NR_CPUS); } cpumask_t; /** @@ -289,11 +290,11 @@ static inline void cpumask_clear_cpu(int cpu, struct cpumask *dstp) * @cpumask: the cpumask pointer * * Returns 1 if @cpu is set in @cpumask, else returns 0 - * - * No static inline type checking - see Subtlety (1) above. */ -#define cpumask_test_cpu(cpu, cpumask) \ - test_bit(cpumask_check(cpu), cpumask_bits((cpumask))) +static inline int cpumask_test_cpu(int cpu, const struct cpumask *cpumask) +{ + return test_bit(cpumask_check(cpu), cpumask_bits((cpumask))); +} /** * cpumask_test_and_set_cpu - atomically test and set a cpu in a cpumask @@ -609,9 +610,7 @@ static inline int cpulist_parse(const char *buf, struct cpumask *dstp) */ static inline size_t cpumask_size(void) { - /* FIXME: Once all cpumask assignments are eliminated, this - * can be nr_cpumask_bits */ - return BITS_TO_LONGS(NR_CPUS) * sizeof(long); + return BITS_TO_LONGS(nr_cpumask_bits) * sizeof(long); } /* @@ -768,7 +767,7 @@ static inline const struct cpumask *get_cpu_mask(unsigned int cpu) #if NR_CPUS <= BITS_PER_LONG #define CPU_BITS_ALL \ { \ - [BITS_TO_LONGS(NR_CPUS)-1] = CPU_MASK_LAST_WORD \ + [BITS_TO_LONGS(NR_CPUS)-1] = BITMAP_LAST_WORD_MASK(NR_CPUS) \ } #else /* NR_CPUS > BITS_PER_LONG */ @@ -776,7 +775,7 @@ static inline const struct cpumask *get_cpu_mask(unsigned int cpu) #define CPU_BITS_ALL \ { \ [0 ... BITS_TO_LONGS(NR_CPUS)-2] = ~0UL, \ - [BITS_TO_LONGS(NR_CPUS)-1] = CPU_MASK_LAST_WORD \ + [BITS_TO_LONGS(NR_CPUS)-1] = BITMAP_LAST_WORD_MASK(NR_CPUS) \ } #endif /* NR_CPUS > BITS_PER_LONG */ @@ -797,32 +796,18 @@ cpumap_print_to_pagebuf(bool list, char *buf, const struct cpumask *mask) nr_cpu_ids); } -/* - * - * From here down, all obsolete. Use cpumask_ variants! - * - */ -#ifndef CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS -#define cpumask_of_cpu(cpu) (*get_cpu_mask(cpu)) - -#define CPU_MASK_LAST_WORD BITMAP_LAST_WORD_MASK(NR_CPUS) - #if NR_CPUS <= BITS_PER_LONG - #define CPU_MASK_ALL \ (cpumask_t) { { \ - [BITS_TO_LONGS(NR_CPUS)-1] = CPU_MASK_LAST_WORD \ + [BITS_TO_LONGS(NR_CPUS)-1] = BITMAP_LAST_WORD_MASK(NR_CPUS) \ } } - #else - #define CPU_MASK_ALL \ (cpumask_t) { { \ [0 ... BITS_TO_LONGS(NR_CPUS)-2] = ~0UL, \ - [BITS_TO_LONGS(NR_CPUS)-1] = CPU_MASK_LAST_WORD \ + [BITS_TO_LONGS(NR_CPUS)-1] = BITMAP_LAST_WORD_MASK(NR_CPUS) \ } } - -#endif +#endif /* NR_CPUS > BITS_PER_LONG */ #define CPU_MASK_NONE \ (cpumask_t) { { \ @@ -834,143 +819,4 @@ cpumap_print_to_pagebuf(bool list, char *buf, const struct cpumask *mask) [0] = 1UL \ } } -#if NR_CPUS == 1 -#define first_cpu(src) ({ (void)(src); 0; }) -#define next_cpu(n, src) ({ (void)(src); 1; }) -#define any_online_cpu(mask) 0 -#define for_each_cpu_mask(cpu, mask) \ - for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask) -#else /* NR_CPUS > 1 */ -int __first_cpu(const cpumask_t *srcp); -int __next_cpu(int n, const cpumask_t *srcp); - -#define first_cpu(src) __first_cpu(&(src)) -#define next_cpu(n, src) __next_cpu((n), &(src)) -#define any_online_cpu(mask) cpumask_any_and(&mask, cpu_online_mask) -#define for_each_cpu_mask(cpu, mask) \ - for ((cpu) = -1; \ - (cpu) = next_cpu((cpu), (mask)), \ - (cpu) < NR_CPUS; ) -#endif /* SMP */ - -#if NR_CPUS <= 64 - -#define for_each_cpu_mask_nr(cpu, mask) for_each_cpu_mask(cpu, mask) - -#else /* NR_CPUS > 64 */ - -int __next_cpu_nr(int n, const cpumask_t *srcp); -#define for_each_cpu_mask_nr(cpu, mask) \ - for ((cpu) = -1; \ - (cpu) = __next_cpu_nr((cpu), &(mask)), \ - (cpu) < nr_cpu_ids; ) - -#endif /* NR_CPUS > 64 */ - -#define cpus_addr(src) ((src).bits) - -#define cpu_set(cpu, dst) __cpu_set((cpu), &(dst)) -static inline void __cpu_set(int cpu, volatile cpumask_t *dstp) -{ - set_bit(cpu, dstp->bits); -} - -#define cpu_clear(cpu, dst) __cpu_clear((cpu), &(dst)) -static inline void __cpu_clear(int cpu, volatile cpumask_t *dstp) -{ - clear_bit(cpu, dstp->bits); -} - -#define cpus_setall(dst) __cpus_setall(&(dst), NR_CPUS) -static inline void __cpus_setall(cpumask_t *dstp, unsigned int nbits) -{ - bitmap_fill(dstp->bits, nbits); -} - -#define cpus_clear(dst) __cpus_clear(&(dst), NR_CPUS) -static inline void __cpus_clear(cpumask_t *dstp, unsigned int nbits) -{ - bitmap_zero(dstp->bits, nbits); -} - -/* No static inline type checking - see Subtlety (1) above. */ -#define cpu_isset(cpu, cpumask) test_bit((cpu), (cpumask).bits) - -#define cpu_test_and_set(cpu, cpumask) __cpu_test_and_set((cpu), &(cpumask)) -static inline int __cpu_test_and_set(int cpu, cpumask_t *addr) -{ - return test_and_set_bit(cpu, addr->bits); -} - -#define cpus_and(dst, src1, src2) __cpus_and(&(dst), &(src1), &(src2), NR_CPUS) -static inline int __cpus_and(cpumask_t *dstp, const cpumask_t *src1p, - const cpumask_t *src2p, unsigned int nbits) -{ - return bitmap_and(dstp->bits, src1p->bits, src2p->bits, nbits); -} - -#define cpus_or(dst, src1, src2) __cpus_or(&(dst), &(src1), &(src2), NR_CPUS) -static inline void __cpus_or(cpumask_t *dstp, const cpumask_t *src1p, - const cpumask_t *src2p, unsigned int nbits) -{ - bitmap_or(dstp->bits, src1p->bits, src2p->bits, nbits); -} - -#define cpus_xor(dst, src1, src2) __cpus_xor(&(dst), &(src1), &(src2), NR_CPUS) -static inline void __cpus_xor(cpumask_t *dstp, const cpumask_t *src1p, - const cpumask_t *src2p, unsigned int nbits) -{ - bitmap_xor(dstp->bits, src1p->bits, src2p->bits, nbits); -} - -#define cpus_andnot(dst, src1, src2) \ - __cpus_andnot(&(dst), &(src1), &(src2), NR_CPUS) -static inline int __cpus_andnot(cpumask_t *dstp, const cpumask_t *src1p, - const cpumask_t *src2p, unsigned int nbits) -{ - return bitmap_andnot(dstp->bits, src1p->bits, src2p->bits, nbits); -} - -#define cpus_equal(src1, src2) __cpus_equal(&(src1), &(src2), NR_CPUS) -static inline int __cpus_equal(const cpumask_t *src1p, - const cpumask_t *src2p, unsigned int nbits) -{ - return bitmap_equal(src1p->bits, src2p->bits, nbits); -} - -#define cpus_intersects(src1, src2) __cpus_intersects(&(src1), &(src2), NR_CPUS) -static inline int __cpus_intersects(const cpumask_t *src1p, - const cpumask_t *src2p, unsigned int nbits) -{ - return bitmap_intersects(src1p->bits, src2p->bits, nbits); -} - -#define cpus_subset(src1, src2) __cpus_subset(&(src1), &(src2), NR_CPUS) -static inline int __cpus_subset(const cpumask_t *src1p, - const cpumask_t *src2p, unsigned int nbits) -{ - return bitmap_subset(src1p->bits, src2p->bits, nbits); -} - -#define cpus_empty(src) __cpus_empty(&(src), NR_CPUS) -static inline int __cpus_empty(const cpumask_t *srcp, unsigned int nbits) -{ - return bitmap_empty(srcp->bits, nbits); -} - -#define cpus_weight(cpumask) __cpus_weight(&(cpumask), NR_CPUS) -static inline int __cpus_weight(const cpumask_t *srcp, unsigned int nbits) -{ - return bitmap_weight(srcp->bits, nbits); -} - -#define cpus_shift_left(dst, src, n) \ - __cpus_shift_left(&(dst), &(src), (n), NR_CPUS) -static inline void __cpus_shift_left(cpumask_t *dstp, - const cpumask_t *srcp, int n, int nbits) -{ - bitmap_shift_left(dstp->bits, srcp->bits, n, nbits); -} -#endif /* !CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS */ - #endif /* __LINUX_CPUMASK_H */ diff --git a/include/linux/iommu.h b/include/linux/iommu.h index 38daa453f2e5..0546b8710ce3 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -51,9 +51,33 @@ struct iommu_domain_geometry { bool force_aperture; /* DMA only allowed in mappable range? */ }; +/* Domain feature flags */ +#define __IOMMU_DOMAIN_PAGING (1U << 0) /* Support for iommu_map/unmap */ +#define __IOMMU_DOMAIN_DMA_API (1U << 1) /* Domain for use in DMA-API + implementation */ +#define __IOMMU_DOMAIN_PT (1U << 2) /* Domain is identity mapped */ + +/* + * This are the possible domain-types + * + * IOMMU_DOMAIN_BLOCKED - All DMA is blocked, can be used to isolate + * devices + * IOMMU_DOMAIN_IDENTITY - DMA addresses are system physical addresses + * IOMMU_DOMAIN_UNMANAGED - DMA mappings managed by IOMMU-API user, used + * for VMs + * IOMMU_DOMAIN_DMA - Internally used for DMA-API implementations. + * This flag allows IOMMU drivers to implement + * certain optimizations for these domains + */ +#define IOMMU_DOMAIN_BLOCKED (0U) +#define IOMMU_DOMAIN_IDENTITY (__IOMMU_DOMAIN_PT) +#define IOMMU_DOMAIN_UNMANAGED (__IOMMU_DOMAIN_PAGING) +#define IOMMU_DOMAIN_DMA (__IOMMU_DOMAIN_PAGING | \ + __IOMMU_DOMAIN_DMA_API) + struct iommu_domain { + unsigned type; const struct iommu_ops *ops; - void *priv; iommu_fault_handler_t handler; void *handler_token; struct iommu_domain_geometry geometry; @@ -113,8 +137,11 @@ enum iommu_attr { */ struct iommu_ops { bool (*capable)(enum iommu_cap); - int (*domain_init)(struct iommu_domain *domain); - void (*domain_destroy)(struct iommu_domain *domain); + + /* Domain allocation and freeing by the iommu driver */ + struct iommu_domain *(*domain_alloc)(unsigned iommu_domain_type); + void (*domain_free)(struct iommu_domain *); + int (*attach_dev)(struct iommu_domain *domain, struct device *dev); void (*detach_dev)(struct iommu_domain *domain, struct device *dev); int (*map)(struct iommu_domain *domain, unsigned long iova, diff --git a/include/linux/smp.h b/include/linux/smp.h index be91db2a7017..c4414074bd88 100644 --- a/include/linux/smp.h +++ b/include/linux/smp.h @@ -18,7 +18,7 @@ struct call_single_data { struct llist_node llist; smp_call_func_t func; void *info; - u16 flags; + unsigned int flags; }; /* total number of cpus in this system (may exceed NR_CPUS) */ |