mali_kbase_mem_linux.h

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/*
 *
 * (C) COPYRIGHT 2010, 2012-2016 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 _KBASE_MEM_LINUX_H_
#define _KBASE_MEM_LINUX_H_

struct kbase_hwc_dma_mapping {
    void       *cpu_va;
    dma_addr_t  dma_pa;
    size_t      size;
};

struct kbase_va_region *kbase_mem_alloc(struct kbase_context *kctx,
        u64 va_pages, u64 commit_pages, u64 extent, u64 *flags,
        u64 *gpu_va);
int kbase_mem_query(struct kbase_context *kctx, u64 gpu_addr, int query, u64 *const pages);
int kbase_mem_import(struct kbase_context *kctx, enum base_mem_import_type type,
        void __user *phandle, u64 *gpu_va, u64 *va_pages,
        u64 *flags);
u64 kbase_mem_alias(struct kbase_context *kctx, u64 *flags, u64 stride, u64 nents, struct base_mem_aliasing_info *ai, u64 *num_pages);
int kbase_mem_flags_change(struct kbase_context *kctx, u64 gpu_addr, unsigned int flags, unsigned int mask);
int kbase_mem_commit(struct kbase_context *kctx, u64 gpu_addr, u64 new_pages, enum base_backing_threshold_status *failure_reason);
int kbase_mmap(struct file *file, struct vm_area_struct *vma);

int kbase_mem_evictable_init(struct kbase_context *kctx);

void kbase_mem_evictable_deinit(struct kbase_context *kctx);

int kbase_mem_grow_gpu_mapping(struct kbase_context *kctx,
        struct kbase_va_region *reg,
        u64 new_pages, u64 old_pages);

int kbase_mem_evictable_make(struct kbase_mem_phy_alloc *gpu_alloc);

bool kbase_mem_evictable_unmake(struct kbase_mem_phy_alloc *alloc);

struct kbase_vmap_struct {
    u64 gpu_addr;
    struct kbase_mem_phy_alloc *cpu_alloc;
    struct kbase_mem_phy_alloc *gpu_alloc;
    phys_addr_t *cpu_pages;
    phys_addr_t *gpu_pages;
    void *addr;
    size_t size;
    bool is_cached;
};


void *kbase_vmap_prot(struct kbase_context *kctx, u64 gpu_addr, size_t size,
              unsigned long prot_request, struct kbase_vmap_struct *map);

void *kbase_vmap(struct kbase_context *kctx, u64 gpu_addr, size_t size,
        struct kbase_vmap_struct *map);

void kbase_vunmap(struct kbase_context *kctx, struct kbase_vmap_struct *map);

void *kbase_va_alloc(struct kbase_context *kctx, u32 size, struct kbase_hwc_dma_mapping *handle);

void kbase_va_free(struct kbase_context *kctx, struct kbase_hwc_dma_mapping *handle);

extern const struct vm_operations_struct kbase_vm_ops;
#endif              /* _KBASE_MEM_LINUX_H_ */