diff options
author | Dan Williams <dan.j.williams@intel.com> | 2016-03-09 17:15:43 -0800 |
---|---|---|
committer | Dan Williams <dan.j.williams@intel.com> | 2016-03-09 17:15:43 -0800 |
commit | 489011652a2d5555901def04c24d68874e8ba9a1 (patch) | |
tree | f4d000e5ae63350016d12e6ccb52b0809bb814df /include | |
parent | 59e6473980f321c16299e12db69d1fabc2644a6f (diff) | |
parent | ff8e92d5d94b99aab39f439d532cba435947dfc0 (diff) |
Merge branch 'for-4.6/pfn' into libnvdimm-for-next
Diffstat (limited to 'include')
-rw-r--r-- | include/linux/ioport.h | 34 | ||||
-rw-r--r-- | include/linux/mm.h | 3 |
2 files changed, 34 insertions, 3 deletions
diff --git a/include/linux/ioport.h b/include/linux/ioport.h index 24bea087e7af..8017b8bf45fa 100644 --- a/include/linux/ioport.h +++ b/include/linux/ioport.h @@ -20,6 +20,7 @@ struct resource { resource_size_t end; const char *name; unsigned long flags; + unsigned long desc; struct resource *parent, *sibling, *child; }; @@ -49,12 +50,19 @@ struct resource { #define IORESOURCE_WINDOW 0x00200000 /* forwarded by bridge */ #define IORESOURCE_MUXED 0x00400000 /* Resource is software muxed */ +#define IORESOURCE_EXT_TYPE_BITS 0x01000000 /* Resource extended types */ +#define IORESOURCE_SYSRAM 0x01000000 /* System RAM (modifier) */ + #define IORESOURCE_EXCLUSIVE 0x08000000 /* Userland may not map this resource */ + #define IORESOURCE_DISABLED 0x10000000 #define IORESOURCE_UNSET 0x20000000 /* No address assigned yet */ #define IORESOURCE_AUTO 0x40000000 #define IORESOURCE_BUSY 0x80000000 /* Driver has marked this resource busy */ +/* I/O resource extended types */ +#define IORESOURCE_SYSTEM_RAM (IORESOURCE_MEM|IORESOURCE_SYSRAM) + /* PnP IRQ specific bits (IORESOURCE_BITS) */ #define IORESOURCE_IRQ_HIGHEDGE (1<<0) #define IORESOURCE_IRQ_LOWEDGE (1<<1) @@ -105,6 +113,22 @@ struct resource { /* PCI control bits. Shares IORESOURCE_BITS with above PCI ROM. */ #define IORESOURCE_PCI_FIXED (1<<4) /* Do not move resource */ +/* + * I/O Resource Descriptors + * + * Descriptors are used by walk_iomem_res_desc() and region_intersects() + * for searching a specific resource range in the iomem table. Assign + * a new descriptor when a resource range supports the search interfaces. + * Otherwise, resource.desc must be set to IORES_DESC_NONE (0). + */ +enum { + IORES_DESC_NONE = 0, + IORES_DESC_CRASH_KERNEL = 1, + IORES_DESC_ACPI_TABLES = 2, + IORES_DESC_ACPI_NV_STORAGE = 3, + IORES_DESC_PERSISTENT_MEMORY = 4, + IORES_DESC_PERSISTENT_MEMORY_LEGACY = 5, +}; /* helpers to define resources */ #define DEFINE_RES_NAMED(_start, _size, _name, _flags) \ @@ -113,6 +137,7 @@ struct resource { .end = (_start) + (_size) - 1, \ .name = (_name), \ .flags = (_flags), \ + .desc = IORES_DESC_NONE, \ } #define DEFINE_RES_IO_NAMED(_start, _size, _name) \ @@ -149,6 +174,7 @@ extern void reserve_region_with_split(struct resource *root, extern struct resource *insert_resource_conflict(struct resource *parent, struct resource *new); extern int insert_resource(struct resource *parent, struct resource *new); extern void insert_resource_expand_to_fit(struct resource *root, struct resource *new); +extern int remove_resource(struct resource *old); extern void arch_remove_reservations(struct resource *avail); extern int allocate_resource(struct resource *root, struct resource *new, resource_size_t size, resource_size_t min, @@ -170,6 +196,10 @@ static inline unsigned long resource_type(const struct resource *res) { return res->flags & IORESOURCE_TYPE_BITS; } +static inline unsigned long resource_ext_type(const struct resource *res) +{ + return res->flags & IORESOURCE_EXT_TYPE_BITS; +} /* True iff r1 completely contains r2 */ static inline bool resource_contains(struct resource *r1, struct resource *r2) { @@ -239,8 +269,8 @@ extern int walk_system_ram_res(u64 start, u64 end, void *arg, int (*func)(u64, u64, void *)); extern int -walk_iomem_res(char *name, unsigned long flags, u64 start, u64 end, void *arg, - int (*func)(u64, u64, void *)); +walk_iomem_res_desc(unsigned long desc, unsigned long flags, u64 start, u64 end, + void *arg, int (*func)(u64, u64, void *)); /* True if any part of r1 overlaps r2 */ static inline bool resource_overlaps(struct resource *r1, struct resource *r2) diff --git a/include/linux/mm.h b/include/linux/mm.h index 516e14944339..2b6e22782699 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -387,7 +387,8 @@ enum { REGION_MIXED, }; -int region_intersects(resource_size_t offset, size_t size, const char *type); +int region_intersects(resource_size_t offset, size_t size, unsigned long flags, + unsigned long desc); /* Support for virtually mapped pages */ struct page *vmalloc_to_page(const void *addr); |