3  * CMA ProcFS Interface
8 #include <linux/cma.h>
14 #include "../../../mm/cma.h"
30 static void cma_procfs_show_bitmap(struct seq_file *s, struct cma *cma)  in cma_procfs_show_bitmap()  argument
32 	int elements = DIV_ROUND_UP(cma_bitmap_maxno(cma), BITS_PER_BYTE * sizeof(u32));  in cma_procfs_show_bitmap()
34 	u32 *array = (u32 *)cma->bitmap;  in cma_procfs_show_bitmap()
48 static u64 cma_procfs_used_get(struct cma *cma)  in cma_procfs_used_get()  argument
52 	mutex_lock(&cma->lock);  in cma_procfs_used_get()
53 	used = bitmap_weight(cma->bitmap, (int)cma_bitmap_maxno(cma));  in cma_procfs_used_get()
54 	mutex_unlock(&cma->lock);  in cma_procfs_used_get()
56 	return (u64)used << cma->order_per_bit;  in cma_procfs_used_get()
61 	struct cma *cma = s->private;  in cma_procfs_show()  local
62 	u64 used = cma_procfs_used_get(cma);  in cma_procfs_show()
64 	seq_printf(s, "Total: %lu KiB\n", cma->count << (PAGE_SHIFT - 10));  in cma_procfs_show()
67 	cma_procfs_show_bitmap(s, cma);  in cma_procfs_show()
72 static int cma_procfs_add_one(struct cma *cma, void *data)  in cma_procfs_add_one()  argument
76 	proc_create_single_data(cma->name, 0, root, cma_procfs_show, cma);  in cma_procfs_add_one()
91 MODULE_DESCRIPTION("ROCKCHIP CMA PROCFS Driver");
92 MODULE_ALIAS("platform:rk-cma");