diff options
Diffstat (limited to 'drivers/gpu/arm/utgard/linux/mali_memory_block_alloc.h')
| -rw-r--r-- | drivers/gpu/arm/utgard/linux/mali_memory_block_alloc.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/drivers/gpu/arm/utgard/linux/mali_memory_block_alloc.h b/drivers/gpu/arm/utgard/linux/mali_memory_block_alloc.h new file mode 100644 index 000000000000..129434de67df --- /dev/null +++ b/drivers/gpu/arm/utgard/linux/mali_memory_block_alloc.h @@ -0,0 +1,58 @@ +/* + * Copyright (C) 2010, 2013, 2015 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#ifndef __MALI_BLOCK_ALLOCATOR_H__ +#define __MALI_BLOCK_ALLOCATOR_H__ + +#include "mali_session.h" +#include "mali_memory.h" +#include <linux/spinlock.h> + +#include "mali_memory_types.h" + +#define MALI_BLOCK_SIZE (PAGE_SIZE) /* 4 kB, manage BLOCK memory as page size */ +#define MALI_BLOCK_REF_MASK (0xFFF) +#define MALI_BLOCK_MAX_REF_COUNT (0xFFF) + + + +typedef struct mali_block_allocator { + /* + * In free list, each node's ref_count is 0, + * ref_count added when allocated or referenced in COW + */ + mali_block_item *items; /* information for each block item*/ + struct list_head free; /*free list of mali_memory_node*/ + spinlock_t sp_lock; /*lock for reference count & free list opertion*/ + u32 total_num; /* Number of total pages*/ + atomic_t free_num; /*number of free pages*/ +} mali_block_allocator; + +unsigned long _mali_blk_item_get_phy_addr(mali_block_item *item); +unsigned long _mali_blk_item_get_pfn(mali_block_item *item); +u32 mali_mem_block_get_ref_count(mali_page_node *node); +u32 mali_mem_block_add_ref(mali_page_node *node); +u32 mali_mem_block_dec_ref(mali_page_node *node); +u32 mali_mem_block_release(mali_mem_backend *mem_bkend); +int mali_mem_block_alloc(mali_mem_block_mem *block_mem, u32 size); +int mali_mem_block_mali_map(mali_mem_block_mem *block_mem, struct mali_session_data *session, u32 vaddr, u32 props); +void mali_mem_block_mali_unmap(mali_mem_allocation *alloc); + +int mali_mem_block_cpu_map(mali_mem_backend *mem_bkend, struct vm_area_struct *vma); +_mali_osk_errcode_t mali_memory_core_resource_dedicated_memory(u32 start, u32 size); +mali_bool mali_memory_have_dedicated_memory(void); +u32 mali_mem_block_free(mali_mem_block_mem *block_mem); +u32 mali_mem_block_free_list(struct list_head *list); +void mali_mem_block_free_node(struct mali_page_node *node); +void mali_mem_block_allocator_destroy(void); +_mali_osk_errcode_t mali_mem_block_unref_node(struct mali_page_node *node); +u32 mali_mem_block_allocator_stat(void); + +#endif /* __MALI_BLOCK_ALLOCATOR_H__ */ |