Merge tag 'acpi-5.13-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...

[linux-2.6-microblaze.git] / mm / cma.h

diff --git a/mm/cma.h b/mm/cma.h
index 42ae082..2c77587 100644 (file)
--- a/mm/cma.h
+++ b/mm/cma.h
@@ -3,19 +3,33 @@
 #define __MM_CMA_H__
 
 #include <linux/debugfs.h>
+#include <linux/kobject.h>
+
+struct cma_kobject {
+       struct kobject kobj;
+       struct cma *cma;
+};
 
 struct cma {
        unsigned long   base_pfn;
        unsigned long   count;
        unsigned long   *bitmap;
        unsigned int order_per_bit; /* Order of pages represented by one bit */
-       struct mutex    lock;
+       spinlock_t      lock;
 #ifdef CONFIG_CMA_DEBUGFS
        struct hlist_head mem_head;
        spinlock_t mem_head_lock;
        struct debugfs_u32_array dfs_bitmap;
 #endif
        char name[CMA_MAX_NAME];
+#ifdef CONFIG_CMA_SYSFS
+       /* the number of CMA page successful allocations */
+       atomic64_t nr_pages_succeeded;
+       /* the number of CMA page allocation failures */
+       atomic64_t nr_pages_failed;
+       /* kobject requires dynamic object */
+       struct cma_kobject *cma_kobj;
+#endif
 };
 
 extern struct cma cma_areas[MAX_CMA_AREAS];
@@ -26,4 +40,13 @@ static inline unsigned long cma_bitmap_maxno(struct cma *cma)
        return cma->count >> cma->order_per_bit;
 }
 
+#ifdef CONFIG_CMA_SYSFS
+void cma_sysfs_account_success_pages(struct cma *cma, unsigned long nr_pages);
+void cma_sysfs_account_fail_pages(struct cma *cma, unsigned long nr_pages);
+#else
+static inline void cma_sysfs_account_success_pages(struct cma *cma,
+                                                  unsigned long nr_pages) {};
+static inline void cma_sysfs_account_fail_pages(struct cma *cma,
+                                               unsigned long nr_pages) {};
+#endif
 #endif